[go: up one dir, main page]

WO2014057895A1 - Liquid application device and liquid application method - Google Patents

Liquid application device and liquid application method Download PDF

Info

Publication number
WO2014057895A1
WO2014057895A1 PCT/JP2013/077161 JP2013077161W WO2014057895A1 WO 2014057895 A1 WO2014057895 A1 WO 2014057895A1 JP 2013077161 W JP2013077161 W JP 2013077161W WO 2014057895 A1 WO2014057895 A1 WO 2014057895A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
web
application
porous body
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/077161
Other languages
French (fr)
Japanese (ja)
Inventor
公太 越智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unicharm Corp filed Critical Unicharm Corp
Publication of WO2014057895A1 publication Critical patent/WO2014057895A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs

Definitions

  • the present invention relates to a liquid application apparatus and a liquid application method for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article.
  • a method of applying a low-viscosity liquid such as a lotion to a web constituting an absorbent article using a coating gun or a spray device is disclosed (see Patent Documents 1 and 2).
  • the web to be applied when the web to be applied is thin, the web includes a difference in local weight, or the web has an opening, It is not possible to control the degree of liquid escape (liquid passing through the web) and the degree of impregnation in the thickness direction of the web. As a result, liquid may accumulate on the surface of the web on the one hand, and liquid may escape to the back surface of the web on the other hand, which may cause the liquid to be stably applied to the web. On the other hand, when the web is thick or a laminate with the absorbent body, the web may not be impregnated even when the air pressure flow is increased.
  • the liquid when the liquid is applied in the form of a continuous string, the liquid cannot be evenly applied to the surface of the web to be applied.
  • the liquid when sprayed in a fiber form, it can be applied over the entire surface rather than applying the liquid in a continuous string form, but there is a possibility that the liquid may escape from the web.
  • the production line may be contaminated by the splashing of liquid.
  • an object of the present invention is to completely and evenly apply liquid to a continuously transported web used for manufacturing absorbent articles, while suppressing the escape of applied liquid and controlling the degree of impregnation. Is to provide a liquid application apparatus and a liquid application method.
  • a liquid application apparatus for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article, An application roll in which the entire peripheral surface is covered with a porous body that is compressively deformable including continuous pores and is rotatably supported; A feeder for supplying the liquid to the application roll so that the porous body is impregnated; Comprising The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. The liquid impregnated in the porous body is applied to the web.
  • a liquid application device is provided.
  • a method of applying a liquid to a continuously conveyed web used in the manufacture of absorbent articles Providing an application roll in which the entire peripheral surface is covered by a compressible and deformable porous body including continuous pores and is rotatably supported; Supplying the liquid to the application roll so that the porous body is impregnated; The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. Applying the liquid impregnated in the porous body to the web; including, A method is provided.
  • liquid is applied entirely and evenly to a continuously transported web used for manufacturing absorbent articles while suppressing the escape of applied liquid and controlling the degree of impregnation. Can do.
  • liquid application apparatus of 1st embodiment Comprising: The schematic of the liquid application apparatus with an application roll in an application position and a saucer in a retracted position. It is the liquid application apparatus of 1st embodiment, Comprising: The schematic of a liquid application apparatus with an application roll in a non-application position and a saucer in a retracted position. It is the liquid application apparatus of 1st embodiment, Comprising: The schematic of the liquid application apparatus with an application roll in a non-application position and a saucer in an action position.
  • the fragmentary perspective view of the liquid application apparatus of 1st embodiment The longitudinal cross-sectional view of the application roll of FIG. 1A.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.
  • FIG. 6 is a schematic enlarged view of a VI part in FIG. 5.
  • FIG. 6B is a view similar to FIG. 6A in which the application roll is disposed at a height position where the surfaces of the porous body and the web of the application roll are just in contact with each other.
  • the partial side view of the liquid application apparatus of 2nd embodiment The partial side view of the liquid application apparatus of 3rd embodiment.
  • FIG. 1A, FIG. 1B, and FIG. 1C show schematic views of the liquid application apparatus 1 of the first embodiment.
  • FIG. 1A the outline of the whole component of the liquid application apparatus 1 which concerns on 1st embodiment of this invention is demonstrated.
  • the liquid application apparatus 1 of 1st embodiment is the application roll 3 comprised from the porous body 3P which covers the hollow base 3B and the outer peripheral surface whole, and the support roll 5R which is a support device. Is provided. Between the application roll 3 and the support roll 5, the web 7 is conveyed in the conveyance direction MD (FIG. 2).
  • the porous body 3P of the application roll 3 abuts on the surface of the web 7 and is pushed inward in the radial direction. . At this time, the web 7 is supported in the vertical direction by the support roll 5R.
  • the web 7 is a sheet used for manufacturing an absorbent article such as a sanitary napkin or a paper diaper, a laminated body of these sheets, or a laminated body obtained by assembling these sheets and the absorbent body.
  • the web 7 of the first embodiment is a top sheet of a sanitary napkin.
  • a motor 11 that is attached to one end of a shaft body 3A via a shaft coupling 13 and can rotate the application roll 3 at a desired rotational speed.
  • a bearing 15 that supports the shaft body 3 ⁇ / b> A is disposed between the application roll 3 and the shaft coupling 13.
  • the liquid application apparatus 1 of the first embodiment includes a rotary joint 17 at the other end of the shaft body 3A.
  • the bearing 15 and the rotary joint 17 are connected to the suspension base 19 by a bar 21.
  • the suspension base 19 is raised and lowered in the vertical direction by an elevating device (not shown). Thereby, the connected bearing 15 and the rotary joint 17 are raised and lowered in the vertical direction.
  • the application roll 3 can be disposed at a desired height position.
  • the porous body 3P of the application roll 3 as shown in FIG. 1A abuts on the surface of the web 7, and the application position where the liquid is applied to the web 7, and the application roll as shown in FIGS. 1B and 1C.
  • 3 porous body 3P and the web 7 (in the first embodiment, when the web 7 is removed, the surface of the support roll 5R) is separated from the surface of the web 7 by the porous body 3P of the application roll 3
  • the application roll 3 can be arranged at a non-application position where the liquid is not applied to the web 7.
  • the support roll 5R is rotatably fixed at a predetermined position.
  • the height position of the shaft body 3A of the application roll 3 is fixed, and the support roll 5R is raised or lowered in the vertical direction. In yet another embodiment, both the application roll 3 and the support roll 5R are raised or lowered in the vertical direction.
  • the liquid applied to the web 7 is stored in the tank 23.
  • the liquid stored in the tank 23 is sent to a pump 27 which is a feeder through a tube 25.
  • the tank 23 is disposed at a position higher than the pump 27, and the liquid stored in the tank 23 is sent to the pump 27 by its own weight.
  • the pump 27 supplies the liquid to the application roll 3, specifically to the porous body 3 ⁇ / b> P via the tubes 29, 33, 35, the rotary joint 17 and the distributor 31.
  • the pump 27 can adjust the amount of liquid supplied to the application roll 3 based on the target value of the amount of liquid applied to the web 7.
  • the target value of the liquid amount to be applied is a value determined by the conveyance speed of the web 7, the application range of the liquid on the web 7, the basis weight of the liquid to be applied (application weight of the liquid per unit area), and the like.
  • the pump 27 includes a dial or a knob 37.
  • the operator can manually adjust the amount of liquid discharged from the pump 27 by operating the dial or knob 37.
  • the pump 27 includes a controller including, for example, a computer including a CPU (microprocessor), a memory, an input port, an output port, and the like, and the liquid discharge amount from the pump 27 is automatically set. Adjusted.
  • the pump 27 does not include means for adjusting the liquid discharge rate.
  • the liquid application apparatus 1 further includes a tray 39.
  • the tray 39 is a container that is open in the vertical direction, such as a metal bat.
  • the tray 39 is connected to the shaft body 39A at one end thereof, and is supported by the shaft body 39A.
  • a linear drive mechanism of, for example, a rack and pinion type is provided at the other end (not shown) of the shaft body 39A.
  • the retracted position shown in FIGS. 1A and 1B which is a position that does not hinder the rotational drive of the application roll 3 at the application position or the non-application position, and the vertical lower side of the application roll 3 at the non-application position.
  • the tray 39 can be disposed at the action position shown in FIG. 1C. Specifically, in the first embodiment, the retracted position of the tray 39 is beside the application roll 3, and the tray 39 can reciprocate between the retracted position and the operating position. The operation of the tray 39 will be described later.
  • FIG. 2 is a partial perspective view of the liquid application apparatus 1 according to the first embodiment.
  • the application roll 3 includes a hollow cylindrical base 3B made of a hard material such as a metal, and a compression-deformable porous body 3P including continuous pores such as a sponge disposed so as to cover the entire peripheral surface thereof. Formed from.
  • continuous pores are exposed in the web facing surface 3PFOp facing the web 7, which is a part of the outer surface 3PFO of the porous body 3P.
  • a deformable material that does not allow liquid to pass through, such as silicon, to the side surface 3PFOs of the outer surface 3PFO a liquid-impermeable surface may be formed so that the liquid does not ooze out from the side surface. it can.
  • a deformable material that does not allow liquid to pass through such as silicon
  • the web facing surface 3PFOp of the porous body 3P is substantially concentric with the outer peripheral surface of the cylindrical base portion 3B centering on the shaft portion 3A.
  • the web facing surface 3PFOp and the outer peripheral surface of the base 3B are not concentric.
  • FIG. 3 shows a longitudinal sectional view of the application roll 3 of FIG. 1A.
  • the liquid introduced into the application roll 3 by the tubes 33 and 35 is supplied to the distributor 41 installed inside the base 3B.
  • the distributor 41 is made of a resin having a hollow portion that becomes a portion of the passage 41C through which the liquid passes.
  • the passage 41C of the distributor 41 is connected to a hole 3BH provided in the base 3B.
  • FIG. 3 shows a state in which the passage 41C of the distributor 41 branches in two rows in the width direction of the application roll 3.
  • the passage 41C of the distributor 41 branches in three or more rows in the width direction.
  • the passage 41C does not branch in the width direction of the application roll 3.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 4 shows a state in which the passages 41 ⁇ / b> C of the distributors 41 are branched into four rows in the circumferential direction of the application roll 3.
  • the passage 41C branches into five or more rows in the circumferential direction of the application roll 3.
  • the passage 41C branches into three rows or two rows.
  • the passage 41 ⁇ / b> C does not branch in the circumferential direction of the application roll 3.
  • distributors 41 are provided in the application roll 3. In another embodiment, three or more distributors 41 are provided inside the application roll 3 in order to evenly distribute the liquid to the porous body 3P.
  • FIG. 5 shows a partial side view of the liquid application apparatus 1 of the first embodiment.
  • a state in which the web 7 is conveyed in the conveyance direction MD between the application roll 3 and the support roll 5 arranged at the application position is illustrated.
  • the liquid application apparatus 1 includes the motor 11 (FIG. 1A).
  • the application roll 3 is rotated by the motor 11 at a surface speed that is the same as or substantially the same as the surface speed of the web 7.
  • the liquid application apparatus 1 does not include the motor 11 and the application roll 3 is rotationally driven by the frictional force between the web 7 being conveyed in the conveyance direction MD and the porous body 3P.
  • FIG. 6A is a schematic enlarged view of a VI part in FIG.
  • the application roll 3 is arranged such that the porous body 3B is pushed inward in the radial direction of the application roll 3 and deformed by the web 7 supported by the support roll 5R. .
  • the web 7 is similarly compressed and deformed in the vertical direction, that is, in the thickness direction of the web 7.
  • FIG. 6B is a view similar to FIG. 6A and shows a state in which the application roll 3 is arranged at a height position where the surfaces of the porous body 3P and the web 7 of the application roll 3 just contact each other.
  • the porous body 3B and the web 7 are not compressed and deformed inward in the radial direction of the application roll 3 and in the thickness direction of the web 7, that is, here in a substantially vertical direction.
  • the total deformation amount V is the sum of the deformation amount of the porous body 3B inward in the radial direction of the application roll 3 and the deformation amount in the thickness direction of the web 7 in the present specification and claims. Defined. Therefore, in the state of FIG. 6B, the total deformation amount V is 0 [mm].
  • the height position of the surface of the web 7 at this time that is, the height position of the web facing surface 3PFOp portion of the porous body 3P in contact with the web 7 is defined as L1.
  • the porous body 3 ⁇ / b> B and the web 7 are respectively compressed inward in the radial direction of the application roll 3 and in the thickness direction of the web 7 at the positions where they abut. It is deformed. If the porous body 3B is not deformed at this time (the outline of the porous body 3B at this time is indicated by a dotted line), the height position at which the web facing surface 3PFOp will reach is defined as L2. .
  • the liquid 7 impregnated inside the porous body 3P oozes out on the surface of the porous body 3P when the porous body 3P is pushed and deformed by the web 7 inward in the radial direction of the application roll 3. .
  • the exuded liquid is applied to the web 7.
  • by increasing the total deformation amount V it is possible to impregnate the liquid in the thickness direction of the web 7 and apply the liquid to the deeper side of the web 7.
  • the total deformation amount V by reducing the total deformation amount V, the impregnation of the liquid in the thickness direction of the web 7 can be suppressed, and the escape of the liquid can be suppressed.
  • the degree of impregnation of the liquid into the web 7 and the escape of the liquid can be controlled by adjusting the total deformation amount V.
  • the amount of liquid applied to the web 7 is mainly determined by the amount of liquid supplied by the pump 27, the amount of liquid applied to the web 7 can be adjusted by adjusting the total deformation amount V. It can also be adjusted.
  • the web facing surface 3PFOp is concentric with the cylindrical surface of the base portion 3B, so that the total deformation amount V becomes constant as a whole. As a result, the liquid can be evenly applied to the web 7.
  • the total deformation amount V is preferably 1 to 10 mm. If the total deformation V is smaller than this, the web 7 cannot be properly impregnated with the liquid. Further, if the total deformation amount V is larger than 10 mm, the deformation of the porous body 3P becomes too large, which may impair the durability of the porous body 3P against repeated deformation.
  • the surface of the porous body 3P is repeatedly compressed and deformed by rotating when the web 7 is conveyed. Then, when returning from the compressed state to the original state, the compression-deformed portion causes the liquid impregnated inside by the capillary phenomenon and the centrifugal force due to the rotation of the application roll 3 to the web facing surface 3PFOp of the porous body 3P. Can be moved in the direction. Thereby, the distribution of the liquid inside the porous body 3P can be kept substantially uniform.
  • the liquid of the first embodiment is a low-viscosity liquid having a viscosity in the range of 0.05 to 4 Pa ⁇ s at least when applied to the web 7.
  • the liquid has a viscosity in the range of 0.05 to 4 Pa ⁇ s at 20 to 25 ° C. and 1 atm.
  • the liquid is a liquid having a higher viscosity.
  • the liquid is a liquid having a lower viscosity.
  • the liquid is a modifier for rapidly transferring menstrual blood from the top sheet to the absorber.
  • they are skin care agents, pH adjusters, antibacterial agents, fragrances, fragrances and the like.
  • the basis weight of the applied liquid is preferably 1 to 15 g / m 2 . If the applied amount is less than 1 g / m 2 , the liquid is applied only at the intersection of the fibers, and it may not be possible to apply the liquid evenly to the web 7. On the other hand, when the applied amount is larger than 15 g / m 2 , the applied amount of the liquid is too large, and there is a possibility that liquid leakage or line contamination may occur.
  • porous body 3P of the first embodiment a so-called sponge made from a urethane resin material having the following properties can be used.
  • the pore diameter is a value measured based on ASTM (Designation: D4404-84).
  • the water retention rate [%] is a value indicating the weight percent of water retained relative to the weight of the porous body.
  • the apparent density [g / m 3 ] is a density defined by JIS-K7222.
  • Hardness is a hardness defined by the Japan Rubber Association Standard (SRIS1010).
  • Such a porous material is widely supplied for industrial drawing and wiping applications, can be easily processed into an arbitrary shape, and can be obtained at a relatively low cost. It also has excellent wear resistance and chemical resistance to liquids.
  • the liquid application apparatus 1 of 1st embodiment there can exist the following effects.
  • (2) The amount of liquid supplied from the pump 27 (supply device) is determined by the dial or knob 37 according to the conveyance speed of the web 7, the application range of the liquid on the web 7, the weight of the liquid to be applied, and the like. The target value can be controlled. Thereby, a liquid can be continuously applied to the web 7 stably.
  • the liquid can be stably supplied to the web 7 even in a situation where the conveyance speed changes. Can be applied equally.
  • the height position of the web 7 in the vertical direction can be kept constant by the action of the support roll 5R (support device). Thereby, the porous body 3 ⁇ / b> P is pushed and deformed by the web 7, and the liquid can be applied to the web 7.
  • the liquid application apparatus 1 is provided with the support roll 5R, in another embodiment, it is not provided with the support roll 5R. This is because, when the total deformation amount V is small, the porous body 3P can be pushed in by the tension applied to the web 7 without the support roll 5R.
  • the liquid is impregnated in advance so as to be substantially uniform inside the porous body 3 ⁇ / b> P.
  • a desired liquid amount can be applied to the web 7. That is, when the liquid is applied to the web 7, if the amount of the liquid impregnated in the porous body 3 ⁇ / b> P is biased inside the web 7, the desired liquid amount is appropriately applied to each liquid application portion of the web 7. You may not be able to. As a result, a defective product is manufactured, which is not preferable from the viewpoint of manufacturing cost.
  • the application roll 3 before applying the liquid to the web 7, as shown in FIG. 1B and FIG. 1C, the application roll 3 is disposed at a non-application position where the porous body 3P does not contact the surface of the web 7, as described above.
  • the application roll 3 is rotated while supplying the liquid from the tank 23 to the porous body 3P. Thereby, the liquid can be uniformly impregnated into the porous body 3P. This is because by rotating the application roll 3, it is possible to prevent the liquid from being biased in a certain direction due to its own weight.
  • the liquid may ooze out from the porous body 3P by moving in the web facing surface 3PFOp direction from the inside of the porous body 3P by centrifugal force.
  • the liquid may drip onto the portion of the web 7 located under the application roll 3 or when the web 7 is removed from under the application roll 3 to contaminate the production line. is there.
  • the tray 39 is disposed at the operation position on the lower side in the vertical direction of the application roll 3 at the non-application position.
  • the liquid application apparatus 1 it may be necessary to temporarily stop the liquid application action of the liquid application apparatus 1 if, for example, a problem occurs in a part of the manufacturing process.
  • the supply of the liquid from the tank 23 to the porous body 3P and the conveyance of the web 7 are stopped, and the application roll 3 is moved to the non-application position as shown in FIG. 1B.
  • the rotational driving of the application roll 3 is stopped, the liquid impregnated in the porous body 3P moves downward in the vertical direction by its own weight.
  • the liquid drops from the porous body 3P onto the portion of the web 7 located below or onto the support roll 5R when the web 7 is removed from under the application roll 3, resulting in contamination of the production line. May cause.
  • the rotation speed of the application roll 3 at this time is preferably lower (for example, 30 rotations / minute) than the rotation speed (for example, 600 to 1500 rotations / minute) when the liquid is applied to the web 7. This is because the amount of liquid that oozes out from the inside of the porous body 3P can be reduced.
  • the liquid may ooze out from the porous body 3P by centrifugal force as described above. Therefore, even in such a case, as shown in FIG. 1C, it is preferable to move the tray 39 to the above-mentioned operation position so that the production line is not contaminated. As a result, by receiving the liquid oozed from the porous body 3P by the receiving tray 39, it is possible to prevent the production line from being contaminated.
  • the liquid application action of the liquid application apparatus 1 is stopped for a long time (for example, one day or longer), it is usually required to stop the rotation of the application roll 3 from the viewpoint of energy cost or safety. .
  • the rotation drive of the application roll 3 is stopped, the liquid oozes out from the porous body 3P as described above and drops below. Accordingly, as in the case described above, as shown in FIG. 1C, the contamination of the production line is prevented by moving the tray 39 to the above-described working position and receiving the liquid that has oozed out by the tray 39. Is required.
  • the application roll 3 is arranged at the non-application position, and the application roll 3 is rotated while supplying the liquid from the tank 23 to the porous body 3 ⁇ / b> P as necessary. preferable.
  • the liquid can be substantially uniformly impregnated inside the porous body 3P.
  • the above-described step of impregnating the liquid into the porous body 3P substantially uniformly before applying the liquid to the web 7 is referred to as an “idling step”.
  • the liquid is supplied from the tank 23 to the porous body 3P, the porous body 3P is brought into contact with the web 7, and the porous body 3P is pushed in, so that the liquid is supplied. Applies to web 7.
  • FIG. 7 shows a partial side view of the liquid application apparatus 1 of the second embodiment.
  • the porous body 3P of the second embodiment is composed of an inner porous body 3PLI and an outer porous body 3PLO whose properties of the porous material are different from each other. Therefore, the liquid introduced from the hole 3BH of the base 3B of the application roll 3 is first supplied to the inner surface of the inner porous body 3PLI. Next, as described above, the liquid moves to the outer porous body 3PLO by capillary action or centrifugal force. Then, the liquid is applied to the web 7 by the outer porous body 3PLO being pushed into the web 7.
  • a material having a larger pore diameter and / or porosity than the outer porous body 3PLO is selected for the inner porous body 3PLI. This is advantageous because the liquid supplied to the inner surface of the inner porous body 3PLI can be more quickly impregnated over the entire porous body 3P.
  • the outer porous body 3PLO can be easily pushed in by the web 7, which is advantageous.
  • FIG. 8 shows a partial side view of the liquid application apparatus 1 of the third embodiment.
  • the web 7 is a thick web, and is a web in which a plurality of webs constituting the absorbent article, for example, a top sheet, an absorbent body, a back sheet, and the like are assembled.
  • the liquid application apparatus 1 comprises not the support roll 5R but the belt conveyor 5B as a support device.
  • a support roll including a support surface 5RS (FIGS. 6A and 6B) having a curved surface shape that supports the web 7 at a certain height position. If 5R (FIG. 2 etc.) is used and the web 7 is supported, the web 7 will curve as shown in FIG. 6A, and will stick to the support roll 5R. Therefore, in order to prevent this sticking, it is preferable to use a belt conveyor 5B having a planar support surface 5BS when the web 7 is thick.
  • the liquid application apparatus 1 includes a receiving plate that is a plate including a planar support surface, instead of the belt conveyor 5B.
  • the arbitrary total deformation amount V can be applied without considering the sticking of the web 7 as described above, so that the web 7 can be effectively impregnated with the liquid.
  • the liquid can be applied to the depth of the web 7 in the thickness direction, which is advantageous.
  • FIG. 9 shows a partial side view of the liquid application apparatus 1 of the fourth embodiment.
  • the web 7 is a partially thick web.
  • the web 7 includes a sanitary napkin, a top sheet, an absorbent body, a back sheet, a semi-finished product including at least a pressure-sensitive adhesive for sticking the napkin to the shorts, and a release paper of the pressure-sensitive adhesive.
  • Product continuum In this case, the thick portion 7A of the web 7 is a central portion of each sanitary napkin and corresponds to a middle-high portion that is thicker than the other portions. It should be noted that the thickness of the portion corresponding to the middle-high portion in FIG. 9 is drawn extremely thick.
  • This semi-finished product continuum is in a state where it can be made into a usable product by cutting it into the shape of the product of the absorbent article.
  • the step of applying the liquid to the semi-finished product continuum is performed immediately before the step of cutting the semi-finished product continuum into the product shape.
  • the liquid applied to the web 7 is prevented from adhering to an apparatus, a production line, or the like in the process of assembling the components of another absorbent article.
  • the application roll 3 is positioned so that the surface of the porous body 3 ⁇ / b> P contacts the surface of the thick portion 7 ⁇ / b> A of the web 7, but does not contact the thin portion 7 ⁇ / b> B of the web 7. Is arranged. As a result, the liquid can be selectively applied only to the thick part 7A of the web, which is advantageous.
  • FIG. 10 shows a partial side view of the liquid application apparatus 1 of the fifth embodiment.
  • the surface of the web 7 is entirely flat, and the porous body 3P is formed so that the porous body 3P has a thick portion, that is, a convex portion 3PP. be able to.
  • the convex portion 3PP of the porous body 3P is selectively brought into contact with the web 7, and further, the convex portion 3PP is pushed by the web 7, and only the portion of the web 7 where the convex portion 3PP is in contact is selected. Liquid can be applied.
  • the web 7 is planar, but in another embodiment, the web 7 includes a thick portion and a thin portion as described in FIG. 9 for the fourth embodiment. And it can also apply a liquid to the said thin part by making the convex part 3PP of the porous body 3P contact
  • the porous body 3P is also formed with a portion to be called the concave portion 3PR.
  • the recess 3PR is configured not to contact the web 7.
  • both the convex portion 3PP and the concave portion 3PR are configured to contact the web 7 by reducing the height difference between the convex portion 3PP and the concave portion 3PR.
  • the liquid weight of the web 7 portion in contact with the convex portion 3PP is equal to the web 7 portion in which the concave portion 3PR contacts. More than. As a result, it is advantageous because the basis weight of the liquid can be selectively and locally changed by the portion of the web 7.
  • FIGS. 11 and 12 show a partial schematic view and a partial side view of the liquid application apparatus 1 of the sixth embodiment, respectively.
  • the liquid is supplied not to the application roll 3 but to the external supply roll 51 configured to be pressed in contact with the outer surface 3PFO of the porous body 3P of the application roll 3.
  • the external supply roll 51 includes a shaft body 51A and a supply porous body 51P formed so as to cover the periphery of the shaft body 51A.
  • the external supply roll 51 is rotatably supported by a support column 53.
  • the tube 29 connects the pump 27 to the shaft body 51A of the external supply roll 51 via the rotary joint 55 instead of the distributor 31, unlike the first embodiment.
  • the shaft body 51A is hollow, and has a plurality of holes (not shown) penetrating through the hollow portion of the shaft body 51A in a portion in contact with the supply porous body 51P.
  • the pump 27 first supplies a liquid to the hollow portion of the shaft body 51A.
  • the liquid in the hollow portion of the shaft body 51A is supplied to the supply porous body 51P from the inner surface of the supply porous body 51P through the plurality of holes of the shaft body 51A.
  • the supply porous body 51P is impregnated with the liquid.
  • the pump 27 supplies liquid by, for example, jetting or dropping directly to the external supply roll 51 without passing through the shaft body 51A and the rotary joint 55 of the external supply roll 51.
  • the supply porous body 51P impregnated with the liquid in this way is pressed into contact with the porous body 3P of the application roll 3, so that the liquid impregnated in the supply porous body 51P oozes out.
  • the oozed liquid is supplied to the outer surface 3PFO of the porous body 3P.
  • the pump 27 supply device supplies the liquid to the outer surface 3PFO of the porous body 3P.
  • the liquid when the liquid is supplied from the outer surface 3PFO of the porous body 3P, it is not necessary to impregnate the entire porous body 3P, and the portion of the porous body 3P that contacts the surface of the web 7 and applies the liquid to the web 7 is applied. This is advantageous because the liquid can be reliably supplied. Further, it is not necessary to provide a component such as a distributor for supplying the liquid inside the application roll 3, which is advantageous because the configuration of the application roll 3 can be simplified.
  • the present invention includes the following modified embodiments.
  • a belt conveyor 5B is used as the support.
  • the support roll 5R may be used instead of the belt conveyor 5B for these webs.
  • a belt conveyor 5B can be used instead of the support roll 5R.
  • porous body 3P composed of the inner porous body 3PLI and the outer porous body 3PLO described in the second embodiment can be used as the porous body 3P of the application roll 3 of other embodiments.
  • the porous body 3P has the convex portion 3PP, the convex portion 3PP is formed on the outer porous body 3PLO.
  • the liquid is supplied to the outer surface 3PFO of the porous body 3P by providing the external application roll 51 of the sixth embodiment in the liquid application apparatus 1 of the other embodiments.
  • the “idling stage” described in the first embodiment can also be performed before applying the liquid to the web 7 in the second to sixth embodiments, and the tray 39 is provided in the liquid application apparatus 1.
  • the application roll 3 can be disposed at the application position and the non-application position, and the tray 39 can be disposed at the retraction position and the operation position.
  • the application roll 3 may include another external supply roll in the liquid application apparatus 1 so that the liquid can be applied to the porous body 3P even when the application roll 3 is in the non-application position. .
  • the present invention is defined as follows.
  • a liquid application apparatus for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article, An application roll in which the entire peripheral surface is covered with a porous body that is compressively deformable including continuous pores and is rotatably supported; A feeder for supplying the liquid to the application roll so that the porous body is impregnated; Comprising The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. The liquid impregnated in the porous body is applied to the web. Liquid application equipment.
  • the support surface that supports the web of the support is a curved surface shape or a planar shape,
  • the supply device supplies the liquid to the inner surface of the porous body.
  • the liquid application apparatus according to (1) or (2).
  • the supply unit supplies the liquid to the outer surface of the porous body.
  • (1) to (3) The liquid application apparatus according to any one of (1) to (3).
  • the supply device is capable of adjusting the amount of liquid supplied to the application roll.
  • the liquid application apparatus according to any one of (4).
  • a motor for rotating the application roll is provided, The application roll is rotated at a surface speed that is the same as the web transport speed; (1) to (5) The liquid application apparatus according to any one of (5).
  • the liquid has a viscosity in the range of 0.05 to 4 Pa ⁇ s; (1) to (6)
  • the liquid application apparatus according to any one of (6).
  • the basis weight of the liquid applied to the web is 1 to 15 g / m 2 .
  • the liquid application apparatus according to any one of (7).
  • the total deformation amount of the porous body and the web is 1 to 10 mm.
  • the liquid application apparatus according to any one of (8).
  • the application roll can be arranged at a non-application position where the liquid is not applied to the web. It further comprises a saucer that can be disposed at an action position that is vertically below the application roll in the non-application position and a retreat position that is a position that does not hinder the rotational drive of the application roll.
  • a saucer that can be disposed at an action position that is vertically below the application roll in the non-application position and a retreat position that is a position that does not hinder the rotational drive of the application roll.
  • a liquid application method for applying a liquid to a continuously conveyed web, which is used for manufacturing an absorbent article A roll preparation step of preparing an application roll in which the entire peripheral surface is covered with a porous body that can be deformed by compression including continuous pores and is rotatably supported; A liquid supply step of supplying the liquid to the application roll so that the porous body is impregnated; The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance.
  • a liquid application step in which the liquid impregnated in the porous body is applied to the web including, Liquid application method.
  • the rotation speed of the application roll in the idling stage is lower than the rotation speed of the application roll in the liquid application stage.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

液体適用装置及び液体適用方法Liquid application apparatus and liquid application method

　本発明は、吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用装置及び液体適用方法に関する。 The present invention relates to a liquid application apparatus and a liquid application method for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article.

　ローションなどの低粘度の液体を、塗工ガンや噴霧装置を用いて、吸収性物品を構成するウェブに適用する方法が開示されている（特許文献１及び２参照）。 A method of applying a low-viscosity liquid such as a lotion to a web constituting an absorbent article using a coating gun or a spray device is disclosed (see Patent Documents 1 and 2).

特開２００４－２２９９５９号公報JP 2004-229959 A 特表２００６－５１９３２０号公報JP-T-2006-519320

　しかしながら、先行文献１に開示されている方法では、適用対象のウェブが薄かったり、局所的な目付けの違いを含むウェブであったり、開口を有するようなウェブであったりした場合には、ウェブからの液体の抜け（液体がウェブを通り抜けてしまうこと）やウェブの厚さ方向への含浸の程度を制御できない。それにより、一方ではウェブの表面に液体が溜ることによって、他方では液体がウェブの裏面に抜けることによって、ウェブへの液体の適用が安定的に行われないおそれがある。その一方で、ウェブが厚い場合や吸収体との積層物等であった場合には、空気加圧流を強くした場合でもウェブ内へ液体を含浸させることができない場合がある。 However, in the method disclosed in the prior art document 1, when the web to be applied is thin, the web includes a difference in local weight, or the web has an opening, It is not possible to control the degree of liquid escape (liquid passing through the web) and the degree of impregnation in the thickness direction of the web. As a result, liquid may accumulate on the surface of the web on the one hand, and liquid may escape to the back surface of the web on the other hand, which may cause the liquid to be stably applied to the web. On the other hand, when the web is thick or a laminate with the absorbent body, the web may not be impregnated even when the air pressure flow is increased.

　また、先行文献２に開示されている適用方法では、連続ストリング状で液体を適用する場合には、液体を適用対象のウェブの面に均等に適用することができない。また、ファイバー状に噴霧する場合は、連続ストリング状で液体を適用するよりも全面的に塗布できるが、ウェブからの液体の抜けが発生するおそれがある。さらに、液体の飛散によって製造ラインを汚染するおそれもある。 Also, in the application method disclosed in the prior art document 2, when the liquid is applied in the form of a continuous string, the liquid cannot be evenly applied to the surface of the web to be applied. In addition, when sprayed in a fiber form, it can be applied over the entire surface rather than applying the liquid in a continuous string form, but there is a possibility that the liquid may escape from the web. In addition, the production line may be contaminated by the splashing of liquid.

　したがって、本発明の目的は、適用する液体の抜けを抑制しかつその含浸の程度を制御しつつ、吸収性物品の製造に用いられる、連続的に搬送されているウェブに全面的かつ均等に液体を適用することができる液体適用装置及び液体適用方法を提供することにある。 Accordingly, an object of the present invention is to completely and evenly apply liquid to a continuously transported web used for manufacturing absorbent articles, while suppressing the escape of applied liquid and controlling the degree of impregnation. Is to provide a liquid application apparatus and a liquid application method.

　上記課題を解決するために、本発明によれば、
　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用装置であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールと、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する供給器と、
　を具備し、
　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールが前記ウェブに対して配置され、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される、
　液体適用装置が提供される。 In order to solve the above problems, according to the present invention,
A liquid application apparatus for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article,
An application roll in which the entire peripheral surface is covered with a porous body that is compressively deformable including continuous pores and is rotatably supported;
A feeder for supplying the liquid to the application roll so that the porous body is impregnated;
Comprising
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. The liquid impregnated in the porous body is applied to the web.
A liquid application device is provided.

　さらに、上記課題を解決するために、本発明によれば、
　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する方法であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールを用意する段階と、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する段階と、
　　　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールを前記ウェブに対して配置し、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される段階と、
　を含む、
　方法が提供される。 Furthermore, in order to solve the above problems, according to the present invention,
A method of applying a liquid to a continuously conveyed web used in the manufacture of absorbent articles,
Providing an application roll in which the entire peripheral surface is covered by a compressible and deformable porous body including continuous pores and is rotatably supported;
Supplying the liquid to the application roll so that the porous body is impregnated;
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. Applying the liquid impregnated in the porous body to the web;
including,
A method is provided.

　本発明により、適用する液体の抜けを抑制しかつその含浸の程度を制御しつつ、吸収性物品の製造に用いられる、連続的に搬送されているウェブに全面的かつ均等に液体を適用することができる。 According to the present invention, liquid is applied entirely and evenly to a continuously transported web used for manufacturing absorbent articles while suppressing the escape of applied liquid and controlling the degree of impregnation. Can do.

　以下、添付図面と本発明の好適な実施形態の記載から、本発明を一層十分に理解できるであろう。 Hereinafter, the present invention will be more fully understood from the accompanying drawings and the description of preferred embodiments of the present invention.

第一の実施形態の液体適用装置であって、適用ロールが適用位置にありかつ受け皿が退避位置にある、液体適用装置の概略図。It is the liquid application apparatus of 1st embodiment, Comprising: The schematic of the liquid application apparatus with an application roll in an application position and a saucer in a retracted position. 第一の実施形態の液体適用装置であって、適用ロールが非適用位置にありかつ受け皿が退避位置にある、液体適用装置の概略図。It is the liquid application apparatus of 1st embodiment, Comprising: The schematic of a liquid application apparatus with an application roll in a non-application position and a saucer in a retracted position. 第一の実施形態の液体適用装置であって、適用ロールが非適用位置にありかつ受け皿が作用位置にある、液体適用装置の概略図。It is the liquid application apparatus of 1st embodiment, Comprising: The schematic of the liquid application apparatus with an application roll in a non-application position and a saucer in an action position. 第一の実施形態の液体適用装置の部分斜視図。The fragmentary perspective view of the liquid application apparatus of 1st embodiment. 図１Ａの適用ロールの縦断面図。The longitudinal cross-sectional view of the application roll of FIG. 1A. 図３のＩＶ－ＩＶ線断面図。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 第一の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 1st embodiment. 図５のＶＩ部の概略拡大図。FIG. 6 is a schematic enlarged view of a VI part in FIG. 5. 適用ロールの多孔体とウェブとの表面が互いにちょうど当接する高さ位置に適用ロールが配置された状態にある、図６Ａに類似する図。FIG. 6B is a view similar to FIG. 6A in which the application roll is disposed at a height position where the surfaces of the porous body and the web of the application roll are just in contact with each other. 第二の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 2nd embodiment. 第三の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 3rd embodiment. 第四の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 4th embodiment. 第五の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 5th embodiment. 第六の実施形態の液体適用装置の部分概略図。The partial schematic diagram of the liquid application apparatus of 6th embodiment. 第六の実施形態の液体適用装置の部分側面図。The partial side view of the liquid application apparatus of 6th embodiment.

　本発明は上述の図面を参照しつつより詳細に記載される。なお、図面は、本発明の理解を容易にすると共に図面の記載を簡略化するために、実際の構成要素の大きさ、縮尺、形状と同一に描かれていない場合があることに留意されたい。 The present invention will be described in more detail with reference to the above-mentioned drawings. It should be noted that the drawings may not be drawn to the same size, scale, or shape as actual components in order to facilitate understanding of the present invention and simplify the description of the drawings. .

　（第一の実施形態）
　これより図１Ａ～図６Ｂを用いて、本発明の液体適用装置１の第一の実施形態の説明をする。 (First embodiment)
The first embodiment of the liquid application apparatus 1 of the present invention will be described with reference to FIGS. 1A to 6B.

　図１Ａ、図１Ｂ及び図１Ｃは、第一の実施形態の液体適用装置１の概略図を示している。これより、図１Ａを主に参照して、本発明の第一の実施形態に係る液体適用装置１の全体の構成要素の概略を説明する。 FIG. 1A, FIG. 1B, and FIG. 1C show schematic views of the liquid application apparatus 1 of the first embodiment. Hereafter, with reference mainly to FIG. 1A, the outline of the whole component of the liquid application apparatus 1 which concerns on 1st embodiment of this invention is demonstrated.

　図１Ａに示すように、第一の実施形態の液体適用装置１は、中空の基部３Ｂとその外周面全体を覆う多孔体３Ｐから構成される適用ロール３と、支持器である支持ロール５Ｒとを備える。適用ロール３と支持ロール５との間において、ウェブ７が搬送方向ＭＤ（図２）に搬送される。液体を適用するときには、図１Ａに示すように、適用ロール３を適用位置に配置することにより、適用ロール３の多孔体３Ｐが、ウェブ７の表面に当接して、半径方向内向きに押し込まれる。このとき、ウェブ７は、支持ロール５Ｒによって鉛直方向に支持される。 As shown to FIG. 1A, the liquid application apparatus 1 of 1st embodiment is the application roll 3 comprised from the porous body 3P which covers the hollow base 3B and the outer peripheral surface whole, and the support roll 5R which is a support device. Is provided. Between the application roll 3 and the support roll 5, the web 7 is conveyed in the conveyance direction MD (FIG. 2). When applying the liquid, as shown in FIG. 1A, by arranging the application roll 3 at the application position, the porous body 3P of the application roll 3 abuts on the surface of the web 7 and is pushed inward in the radial direction. . At this time, the web 7 is supported in the vertical direction by the support roll 5R.

　ウェブ７は、生理用ナプキンや紙おむつ等である吸収性物品の製造に使用されるシート若しくはこれらシートの積層体、又はこれらシートと吸収体とを組み付けた積層体である。第一の実施形態のウェブ７は、生理用ナプキンのトップシートである。 The web 7 is a sheet used for manufacturing an absorbent article such as a sanitary napkin or a paper diaper, a laminated body of these sheets, or a laminated body obtained by assembling these sheets and the absorbent body. The web 7 of the first embodiment is a top sheet of a sanitary napkin.

　第一の実施形態の液体適用装置１は、軸体３Ａの一方の端部に、軸継手１３を介して取り付けられている、適用ロール３を所望の回転速度で回転駆動させることができるモータ１１を備える。適用ロール３と軸継手１３との間には軸体３Ａを支持するベアリング１５が配置されている。 In the liquid application apparatus 1 of the first embodiment, a motor 11 that is attached to one end of a shaft body 3A via a shaft coupling 13 and can rotate the application roll 3 at a desired rotational speed. Is provided. A bearing 15 that supports the shaft body 3 </ b> A is disposed between the application roll 3 and the shaft coupling 13.

　さらに、第一の実施形態の液体適用装置１は、軸体３Ａの他方の端部に、ロータリジョイント１７を備える。 Furthermore, the liquid application apparatus 1 of the first embodiment includes a rotary joint 17 at the other end of the shaft body 3A.

　ベアリング１５及びロータリジョイント１７が懸架台１９にバー２１によって接続されている。懸架台１９は昇降装置（図示しない）によって鉛直方向に上昇及び下降される。それにより、接続されているベアリング１５及びロータリジョイント１７が鉛直方向に上昇及び下降される。その結果、適用ロール３を所望の高さ位置に配置することができる。 The bearing 15 and the rotary joint 17 are connected to the suspension base 19 by a bar 21. The suspension base 19 is raised and lowered in the vertical direction by an elevating device (not shown). Thereby, the connected bearing 15 and the rotary joint 17 are raised and lowered in the vertical direction. As a result, the application roll 3 can be disposed at a desired height position.

　これにより、図１Ａに示すような、適用ロール３の多孔体３Ｐがウェブ７の表面に当接して、ウェブ７に液体を適用する適用位置と、図１Ｂ及び図１Ｃに示すような、適用ロール３の多孔体３Ｐとウェブ７（第一の実施形態では、ウェブ７が取り除かれている場合は、支持ロール５Ｒ）の表面とが離間して、適用ロール３の多孔体３Ｐがウェブ７の表面と当接しないことにより、液体をウェブ７に適用しない非適用位置とに、適用ロール３を配置することができる。その一方で、支持ロール５Ｒは所定の位置に回転自在に固定されている。 Thereby, the porous body 3P of the application roll 3 as shown in FIG. 1A abuts on the surface of the web 7, and the application position where the liquid is applied to the web 7, and the application roll as shown in FIGS. 1B and 1C. 3 porous body 3P and the web 7 (in the first embodiment, when the web 7 is removed, the surface of the support roll 5R) is separated from the surface of the web 7 by the porous body 3P of the application roll 3 The application roll 3 can be arranged at a non-application position where the liquid is not applied to the web 7. On the other hand, the support roll 5R is rotatably fixed at a predetermined position.

　別の実施形態では、適用ロール３の軸体３Ａの高さ位置が固定されており、支持ロール５Ｒが鉛直方向に上昇又は下降する。さらに別の実施形態では、適用ロール３と支持ロール５Ｒとの両方が鉛直方向に上昇又は下降する。 In another embodiment, the height position of the shaft body 3A of the application roll 3 is fixed, and the support roll 5R is raised or lowered in the vertical direction. In yet another embodiment, both the application roll 3 and the support roll 5R are raised or lowered in the vertical direction.

　また、ウェブ７に適用する液体はタンク２３に収容されている。タンク２３に収容されている液体は、チューブ２５を介して供給器であるポンプ２７に送られる。第一の実施形態では、タンク２３はポンプ２７よりも高い位置に配置されており、タンク２３に収容されている液体はその自重によってポンプ２７に送られる。ポンプ２７は、チューブ２９，３３，３５、ロータリジョイント１７及び分配器３１を介して適用ロール３に、具体的には多孔体３Ｐに液体を供給する。 Further, the liquid applied to the web 7 is stored in the tank 23. The liquid stored in the tank 23 is sent to a pump 27 which is a feeder through a tube 25. In the first embodiment, the tank 23 is disposed at a position higher than the pump 27, and the liquid stored in the tank 23 is sent to the pump 27 by its own weight. The pump 27 supplies the liquid to the application roll 3, specifically to the porous body 3 </ b> P via the tubes 29, 33, 35, the rotary joint 17 and the distributor 31.

　第一の実施形態では、ポンプ２７は、液体の供給量をウェブ７に適用される液体量の目標値に基づいて、前記適用ロール３に供給される液体量を調節可能である。適用される液体量の目標値は、ウェブ７の搬送速度や、ウェブ７上の液体の適用範囲、適用する液体の目付け（単位面積当たりの液体の適用重量）等によって決定される値である。 In the first embodiment, the pump 27 can adjust the amount of liquid supplied to the application roll 3 based on the target value of the amount of liquid applied to the web 7. The target value of the liquid amount to be applied is a value determined by the conveyance speed of the web 7, the application range of the liquid on the web 7, the basis weight of the liquid to be applied (application weight of the liquid per unit area), and the like.

　第一の実施形態では、ポンプ２７はダイヤル又はツマミ３７などを備える。オペレータは、このダイヤル又はツマミ３７を操作することによって、ポンプ２７からの液体の吐出量を手動で調節することができる。別の実施形態では、ポンプ２７は、例えばＣＰＵ（マイクロプロセッサ）、メモリ、入力ポート、及び出力ポート等を備えたコンピュータから構成される制御器を備え、ポンプ２７からの液体の吐出量が自動で調節される。さらに別の実施形態では、ポンプ２７は液体の吐出量を調節する手段を備えない。 In the first embodiment, the pump 27 includes a dial or a knob 37. The operator can manually adjust the amount of liquid discharged from the pump 27 by operating the dial or knob 37. In another embodiment, the pump 27 includes a controller including, for example, a computer including a CPU (microprocessor), a memory, an input port, an output port, and the like, and the liquid discharge amount from the pump 27 is automatically set. Adjusted. In yet another embodiment, the pump 27 does not include means for adjusting the liquid discharge rate.

　第一の実施形態では、液体適用装置１はさらに受け皿３９を備える。受け皿３９は、例えば金属製のバットのような、鉛直方向上方が開いている容器である。受け皿３９は、軸体３９Ａとその一方の端部において接続されており、軸体３９Ａによって支持されている。そして、軸体３９Ａの他方の端部（図示しない）には、例えばラック・アンド・ピニオン式の、線形駆動機構が設けられている。これにより、上記適用位置又は非適用位置にある適用ロール３の回転駆動を妨げない箇所である、図１Ａ及び図１Ｂに示す退避位置と、上記非適用位置にある適用ロール３の鉛直方向下側である、図１Ｃに示す作用位置とに、受け皿３９を配置することができる。具体的には、第一の実施形態では、受け皿３９の上記退避位置は適用ロール３の脇であり、受け皿３９は、上記退避位置と作用位置との間を往復移動することができる。受け皿３９の作用については、後に説明する。 In the first embodiment, the liquid application apparatus 1 further includes a tray 39. The tray 39 is a container that is open in the vertical direction, such as a metal bat. The tray 39 is connected to the shaft body 39A at one end thereof, and is supported by the shaft body 39A. A linear drive mechanism of, for example, a rack and pinion type is provided at the other end (not shown) of the shaft body 39A. Accordingly, the retracted position shown in FIGS. 1A and 1B, which is a position that does not hinder the rotational drive of the application roll 3 at the application position or the non-application position, and the vertical lower side of the application roll 3 at the non-application position. The tray 39 can be disposed at the action position shown in FIG. 1C. Specifically, in the first embodiment, the retracted position of the tray 39 is beside the application roll 3, and the tray 39 can reciprocate between the retracted position and the operating position. The operation of the tray 39 will be described later.

　図２は、第一の実施形態の液体適用装置１の部分斜視図を示す。適用ロール３は、金属等の硬質な材料から作成される中空の円筒形の基部３Ｂとその周面全体を覆うように配置されたスポンジのような連続気孔を含む圧縮変形可能な多孔体３Ｐとから形成されている。第一の実施形態では、多孔体３Ｐの外面３ＰＦＯの一部である、ウェブ７と対向するウェブ対向面３ＰＦＯｐにおいて、連続気孔が露出している。ここでは、外面３ＰＦＯのうちの側面３ＰＦＯｓに、シリコン等の液体を透過させない変形可能な材料を適用することによって、液不透過面を形成して、液体が側面から染み出さないようにすることもできる。その結果、液体がウェブ７に当接する部分以外から染み出すことによって、製造ラインを汚染することを防止できる。 FIG. 2 is a partial perspective view of the liquid application apparatus 1 according to the first embodiment. The application roll 3 includes a hollow cylindrical base 3B made of a hard material such as a metal, and a compression-deformable porous body 3P including continuous pores such as a sponge disposed so as to cover the entire peripheral surface thereof. Formed from. In the first embodiment, continuous pores are exposed in the web facing surface 3PFOp facing the web 7, which is a part of the outer surface 3PFO of the porous body 3P. Here, by applying a deformable material that does not allow liquid to pass through, such as silicon, to the side surface 3PFOs of the outer surface 3PFO, a liquid-impermeable surface may be formed so that the liquid does not ooze out from the side surface. it can. As a result, it is possible to prevent the production line from being contaminated by the liquid oozing out from a portion other than the portion in contact with the web 7.

　第一の実施形態では、多孔体３Ｐのウェブ対向面３ＰＦＯｐは、軸部３Ａを中心とする円筒形の基部３Ｂの外周面と略同心になっている。別の実施形態（例えば、後述する第五の実施形態）では、ウェブ対向面３ＰＦＯｐ及び基部３Ｂの外周面は、同心ではない。 In the first embodiment, the web facing surface 3PFOp of the porous body 3P is substantially concentric with the outer peripheral surface of the cylindrical base portion 3B centering on the shaft portion 3A. In another embodiment (for example, a fifth embodiment described later), the web facing surface 3PFOp and the outer peripheral surface of the base 3B are not concentric.

　図３は、図１Ａの適用ロール３の縦断面図を示す。チューブ３３，３５によって適用ロール３内部に導入された液体は、基部３Ｂの内部に設置されている分配器４１に供給される。第一の実施形態では、分配器４１は、液体が通過する通路４１Ｃ部分になる中空部分を有する樹脂から作成されている。分配器４１の通路４１Ｃが、基部３Ｂに設けられた孔３ＢＨにそれぞれ接続している。以上の構成により、チューブ３３，３５を介して導入された液体が、通路４１Ｃと孔３ＨＢとを介して多孔体３Ｐの内面３ＰＦＩに供給される。このようにして、ポンプ２７（図１Ａ）が、液体を多孔体３Ｐの内面３ＰＦＩに供給する。その結果、液体を多孔体３Ｐに含浸させることができる。 FIG. 3 shows a longitudinal sectional view of the application roll 3 of FIG. 1A. The liquid introduced into the application roll 3 by the tubes 33 and 35 is supplied to the distributor 41 installed inside the base 3B. In the first embodiment, the distributor 41 is made of a resin having a hollow portion that becomes a portion of the passage 41C through which the liquid passes. The passage 41C of the distributor 41 is connected to a hole 3BH provided in the base 3B. With the above configuration, the liquid introduced through the tubes 33 and 35 is supplied to the inner surface 3PFI of the porous body 3P through the passage 41C and the hole 3HB. In this way, the pump 27 (FIG. 1A) supplies the liquid to the inner surface 3PFI of the porous body 3P. As a result, the liquid 3P can be impregnated with the liquid.

　図３では、分配器４１の通路４１Ｃが、適用ロール３の幅方向に２列に分岐している様子が示されている。しかしながら、別の実施形態では、さらに液体を多孔体３Ｐに均等に分布させるために、分配器４１の通路４１Ｃが幅方向に３列以上に分岐する。さらに別の実施形態では、通路４１Ｃは適用ロール３の幅方向には分岐しない。 FIG. 3 shows a state in which the passage 41C of the distributor 41 branches in two rows in the width direction of the application roll 3. However, in another embodiment, in order to evenly distribute the liquid to the porous body 3P, the passage 41C of the distributor 41 branches in three or more rows in the width direction. In yet another embodiment, the passage 41C does not branch in the width direction of the application roll 3.

　図４は図３のＩＶ－ＩＶ線断面図を示す。図４では、各分配器４１の通路４１Ｃが適用ロール３の周方向に４列に分岐している様子が示されている。しかしながら、別の実施形態では、さらに液体を多孔体３Ｐに均等に分布させるために、通路４１Ｃが適用ロール３の周方向に５列以上に分岐する。さらに別の実施形態では、通路４１Ｃは、３列又は２列に分岐する。さらに別の実施形態では、通路４１Ｃは適用ロール３の周方向には分岐しない。 FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 4 shows a state in which the passages 41 </ b> C of the distributors 41 are branched into four rows in the circumferential direction of the application roll 3. However, in another embodiment, in order to further distribute the liquid evenly in the porous body 3P, the passage 41C branches into five or more rows in the circumferential direction of the application roll 3. In yet another embodiment, the passage 41C branches into three rows or two rows. In yet another embodiment, the passage 41 </ b> C does not branch in the circumferential direction of the application roll 3.

　第一の実施形態では、分配器４１は適用ロール３内に２つのみ設けられている。別の実施形態では、さらに液体を多孔体３Ｐに均等に分布させるために、３つ以上の分配器４１が適用ロール３内部に設けられている。 In the first embodiment, only two distributors 41 are provided in the application roll 3. In another embodiment, three or more distributors 41 are provided inside the application roll 3 in order to evenly distribute the liquid to the porous body 3P.

　図５は、第一の実施形態の液体適用装置１の部分側面図を示す。図５では、上述したように、上記適用位置に配置された適用ロール３と支持ロール５との間において、ウェブ７が搬送方向ＭＤに搬送されている様子が示されている。 FIG. 5 shows a partial side view of the liquid application apparatus 1 of the first embodiment. In FIG. 5, as described above, a state in which the web 7 is conveyed in the conveyance direction MD between the application roll 3 and the support roll 5 arranged at the application position is illustrated.

　上述したように、第一の実施形態では、液体適用装置１はモータ１１（図１Ａ）を具備する。適用ロール３は、モータ１１によって、ウェブ７の表面速度と同じ又はほぼ同じ速度の表面速度で回転している。別の実施形態では、液体適用装置１はモータ１１を具備せず、適用ロール３は、搬送方向ＭＤに搬送されているウェブ７と多孔体３Ｐとの間の摩擦力によって回転駆動される。 As described above, in the first embodiment, the liquid application apparatus 1 includes the motor 11 (FIG. 1A). The application roll 3 is rotated by the motor 11 at a surface speed that is the same as or substantially the same as the surface speed of the web 7. In another embodiment, the liquid application apparatus 1 does not include the motor 11 and the application roll 3 is rotationally driven by the frictional force between the web 7 being conveyed in the conveyance direction MD and the porous body 3P.

　図６Ａは、図５のＶＩ部の概略拡大図である。図６Ａに示されているように、適用ロール３は、支持ロール５Ｒに支持されているウェブ７によって、適用ロール３の半径方向内向きに多孔体３Ｂが押し込まれて変形するように配置される。このとき、ウェブ７も同様に鉛直方向、つまりウェブ７の厚さ方向に圧縮されて変形することになる。 FIG. 6A is a schematic enlarged view of a VI part in FIG. As shown in FIG. 6A, the application roll 3 is arranged such that the porous body 3B is pushed inward in the radial direction of the application roll 3 and deformed by the web 7 supported by the support roll 5R. . At this time, the web 7 is similarly compressed and deformed in the vertical direction, that is, in the thickness direction of the web 7.

　ここで、図６Ｂを用いて、多孔体３Ｐとウェブ７との総変形量Ｖの定義を説明する。図６Ｂは、図６Ａに類似する図であって、適用ロール３の多孔体３Ｐとウェブ７との表面が互いにちょうど当接する高さ位置に適用ロール３が配置された状態を示している。図６Ｂの状態では、多孔体３Ｂ及びウェブ７はそれぞれ、適用ロール３の半径方向内向きに及びウェブ７の厚さ方向に、すなわちここでは略鉛直方向に圧縮されておらず変形もしていない。ここで、総変形量Ｖは、本明細書及び特許請求の範囲において、適用ロール３の半径方向内向きの多孔体３Ｂの変形量とウェブ７の厚さ方向の変形量とを足したものと定義される。したがって、図６Ｂの状態においては、総変形量Ｖは０［ｍｍ］である。なお、このときのウェブ７の表面の高さ位置、すなわちウェブ７と当接している多孔体３Ｐのウェブ対向面３ＰＦＯｐ部分の高さ位置をＬ１と画定する。 Here, the definition of the total deformation amount V of the porous body 3P and the web 7 will be described with reference to FIG. 6B. FIG. 6B is a view similar to FIG. 6A and shows a state in which the application roll 3 is arranged at a height position where the surfaces of the porous body 3P and the web 7 of the application roll 3 just contact each other. In the state of FIG. 6B, the porous body 3B and the web 7 are not compressed and deformed inward in the radial direction of the application roll 3 and in the thickness direction of the web 7, that is, here in a substantially vertical direction. Here, the total deformation amount V is the sum of the deformation amount of the porous body 3B inward in the radial direction of the application roll 3 and the deformation amount in the thickness direction of the web 7 in the present specification and claims. Defined. Therefore, in the state of FIG. 6B, the total deformation amount V is 0 [mm]. The height position of the surface of the web 7 at this time, that is, the height position of the web facing surface 3PFOp portion of the porous body 3P in contact with the web 7 is defined as L1.

　ここで、図６Ａに戻ると、図６Ｂとは異なり、多孔体３Ｂ及びウェブ７はそれぞれ、これらが当接する位置において、適用ロール３の半径方向内向き及びウェブ７の厚さ方向に圧縮されて変形している。このときの、多孔体３Ｂが仮に変形しなかった場合（このときの、多孔体３Ｂの輪郭線を点線で示す。）に、ウェブ対向面３ＰＦＯｐが達することになる高さ位置をＬ２と画定する。この場合、上において定義された総変形量Ｖを以下の式で表すことができる。
　　　Ｖ＝Ｌ１－Ｌ２［ｍｍ］
　なお、この総変形量Ｖは、図６Ａと図６Ｂとの状態の間における、適用ロール３の半径方向の軸体３Ａの変位と同じである。 Here, returning to FIG. 6A, unlike FIG. 6B, the porous body 3 </ b> B and the web 7 are respectively compressed inward in the radial direction of the application roll 3 and in the thickness direction of the web 7 at the positions where they abut. It is deformed. If the porous body 3B is not deformed at this time (the outline of the porous body 3B at this time is indicated by a dotted line), the height position at which the web facing surface 3PFOp will reach is defined as L2. . In this case, the total deformation amount V defined above can be expressed by the following equation.
V = L1-L2 [mm]
The total deformation amount V is the same as the displacement of the shaft body 3A in the radial direction of the application roll 3 between the states shown in FIGS. 6A and 6B.

　図６Ａのように、ウェブ７によって適用ロール３の半径方向内向きに多孔体３Ｐが押し込まれて変形することによって、多孔体３Ｐ内部に含浸されている液体が、多孔体３Ｐの表面に染み出す。その結果、染み出した液体がウェブ７に適用される。さらに、一方では、総変形量Ｖを大きくすることによって、ウェブ７の厚さ方向に液体を含浸させて、ウェブ７のより奥まで液体を適用することができる。他方では、総変形量Ｖを小さくすることによって、ウェブ７の厚さ方向への液体の含浸を抑制して、液体の抜けを抑制することができる。以上のように、ウェブ７への液体の含浸の程度及び液体の抜けを、総変形量Ｖを調節することによって制御することができる。その他にも、液体のウェブ７への適用量はポンプ２７による液体の供給量によって主に決定されるものではあるが、総変形量Ｖを調節することによって、ウェブ７に適用する液体の量を調節することもできる。ここでは、上述のようにウェブ対向面３ＰＦＯｐは、基部３Ｂの円筒面と同心になっているので、総変形量Ｖが全体的に一定になる。その結果、ウェブ７に均等に液体を適用することができる。 As shown in FIG. 6A, the liquid 7 impregnated inside the porous body 3P oozes out on the surface of the porous body 3P when the porous body 3P is pushed and deformed by the web 7 inward in the radial direction of the application roll 3. . As a result, the exuded liquid is applied to the web 7. Furthermore, on the other hand, by increasing the total deformation amount V, it is possible to impregnate the liquid in the thickness direction of the web 7 and apply the liquid to the deeper side of the web 7. On the other hand, by reducing the total deformation amount V, the impregnation of the liquid in the thickness direction of the web 7 can be suppressed, and the escape of the liquid can be suppressed. As described above, the degree of impregnation of the liquid into the web 7 and the escape of the liquid can be controlled by adjusting the total deformation amount V. In addition, although the amount of liquid applied to the web 7 is mainly determined by the amount of liquid supplied by the pump 27, the amount of liquid applied to the web 7 can be adjusted by adjusting the total deformation amount V. It can also be adjusted. Here, as described above, the web facing surface 3PFOp is concentric with the cylindrical surface of the base portion 3B, so that the total deformation amount V becomes constant as a whole. As a result, the liquid can be evenly applied to the web 7.

　総変形量Ｖは１～１０ｍｍであると好ましい。これよりも総変形量Ｖが小さいと、液体をウェブ７に適切に含浸させることができない。また、総変形量Ｖが１０ｍｍよりも大きいと、多孔体３Ｐの変形が大きくなりすぎて、繰り返し変形に対する多孔体３Ｐの耐久性に支障が出るおそれがある。 The total deformation amount V is preferably 1 to 10 mm. If the total deformation V is smaller than this, the web 7 cannot be properly impregnated with the liquid. Further, if the total deformation amount V is larger than 10 mm, the deformation of the porous body 3P becomes too large, which may impair the durability of the porous body 3P against repeated deformation.

　多孔体３Ｐは、ウェブ７搬送時に回転することによってその表面部分が、繰り返し圧縮変形される。そして、圧縮状態から元の状態に戻るときに、その圧縮変形した部分は、毛細管現象と適用ロール３の回転による遠心力とによって内部に含浸されている液体を多孔体３Ｐのウェブ対向面３ＰＦＯｐの方向に移動させることができる。それにより、多孔体３Ｐ内部の液体の分布をほぼ均等に保つことができる。 The surface of the porous body 3P is repeatedly compressed and deformed by rotating when the web 7 is conveyed. Then, when returning from the compressed state to the original state, the compression-deformed portion causes the liquid impregnated inside by the capillary phenomenon and the centrifugal force due to the rotation of the application roll 3 to the web facing surface 3PFOp of the porous body 3P. Can be moved in the direction. Thereby, the distribution of the liquid inside the porous body 3P can be kept substantially uniform.

　第一の実施例の液体は、少なくともウェブ７に適用される時点において、０．０５～４Ｐａ・ｓの範囲の粘度を有する低粘度の液体である。例えば、液体は、２０～２５℃、１気圧において、０．０５～４Ｐａ・ｓの範囲の粘度を有する。別の実施形態では、液体はこれよりも高い粘度を有する液体である。さらに別の実施形態では、液体はこれよりも低い粘度を有する液体である。 The liquid of the first embodiment is a low-viscosity liquid having a viscosity in the range of 0.05 to 4 Pa · s at least when applied to the web 7. For example, the liquid has a viscosity in the range of 0.05 to 4 Pa · s at 20 to 25 ° C. and 1 atm. In another embodiment, the liquid is a liquid having a higher viscosity. In yet another embodiment, the liquid is a liquid having a lower viscosity.

　なお、液体の粘度は以下のように検出される。所望の温度において、ＪＩＳ　Ｋ　２２８３に準じてキャノン－フェンスケ粘度計により動粘度を検出し、さらにＪＩＳ　Ｋ　２２４９に準じて振動式密度計により密度を検出する。上記結果より、以下の式を用いてその温度における粘度を算出する。
　　　粘度（Ｐａ・ｓ）＝動粘度（ｍ２／ｓ）×密度（ｋｇ／ｍ３） The viscosity of the liquid is detected as follows. At a desired temperature, the kinematic viscosity is detected with a Canon-Fenske viscometer according to JIS K 2283, and the density is further detected with a vibratory density meter according to JIS K 2249. From the above results, the viscosity at that temperature is calculated using the following equation.
Viscosity (Pa · s) = Kinematic viscosity (m 2 / s) × Density (kg / m 3 )

　第一の実施形態では、液体は、経血をトップシートから吸収体へ速やかに移行させるための改質剤である。しかしながら、別の実施形態では、スキンケア剤、ＰＨ調整剤、抗菌剤、芳香剤、香料等である。 In the first embodiment, the liquid is a modifier for rapidly transferring menstrual blood from the top sheet to the absorber. However, in another embodiment, they are skin care agents, pH adjusters, antibacterial agents, fragrances, fragrances and the like.

　適用する液体の目付けは、１～１５ｇ／ｍ２にするのが好ましい。１ｇ／ｍ２よりも適用量が少ないと、液体が繊維の交点にのみ適用されてしまい、ウェブ７に均等に液体を適用することができなくなるおそれがある。その一方で、適用量が１５ｇ／ｍ２よりも多い場合は、液体の適用量が多すぎてしまい、液体の抜けやライン汚染などが発生してしまうおそれがある。 The basis weight of the applied liquid is preferably 1 to 15 g / m 2 . If the applied amount is less than 1 g / m 2 , the liquid is applied only at the intersection of the fibers, and it may not be possible to apply the liquid evenly to the web 7. On the other hand, when the applied amount is larger than 15 g / m 2 , the applied amount of the liquid is too large, and there is a possibility that liquid leakage or line contamination may occur.

　第一の実施形態の多孔体３Ｐには、以下の範囲の性状のウレタン樹脂素材から作成される、いわゆるスポンジを使用することができる。
　気孔径［μｍ］：　１０～１０００、好ましくは１０～３０
　気孔率［％］：　５０～９５、好ましくは７５～９０
　保水率［％］：　３００～５００
　見掛密度［ｇ／ｍ３］：　０．１～０．２５
　硬度［アスカーＣ］：　７～１５ For the porous body 3P of the first embodiment, a so-called sponge made from a urethane resin material having the following properties can be used.
Pore diameter [μm]: 10 to 1000, preferably 10 to 30
Porosity [%]: 50 to 95, preferably 75 to 90
Water retention rate [%]: 300-500
Apparent density [g / m 3 ]: 0.1 to 0.25
Hardness [Asker C]: 7-15

　気孔径は、ＡＳＴＭ（Ｄｅｓｉｒｎａｔｉｏｎ：Ｄ４４０４－８４）に基づいて測定される値である。 The pore diameter is a value measured based on ASTM (Designation: D4404-84).

　気孔率は、以下の式によって導かれる値である。
　　　気孔率［％］＝（見掛体積－真体積）／見掛体積×１００ The porosity is a value derived from the following equation.
Porosity [%] = (apparent volume−true volume) / apparent volume × 100

　保水率［％］は、多孔体の自重に対する、保水された水の重量％を示す値である。 The water retention rate [%] is a value indicating the weight percent of water retained relative to the weight of the porous body.

　見掛密度［ｇ／ｍ３］は、ＪＩＳ－Ｋ７２２２によって定義されている密度である。 The apparent density [g / m 3 ] is a density defined by JIS-K7222.

　硬度［アスカーＣ］は、日本ゴム協会標準規格（ＳＲＩＳ１０１０）によって定義されている硬度である。 Hardness [Asker C] is a hardness defined by the Japan Rubber Association Standard (SRIS1010).

　こうした性状の多孔体は、工業用の絞り、拭き取り用途向けに広く供給されており、任意の形状に容易に加工でき、かつ比較的安価に入手することができる。また、耐摩耗性や液体への耐薬品性にも優れている。 Such a porous material is widely supplied for industrial drawing and wiping applications, can be easily processed into an arbitrary shape, and can be obtained at a relatively low cost. It also has excellent wear resistance and chemical resistance to liquids.

　第一の実施形態の液体適用装置１によれば、以下の作用効果を奏することができる。
　（１）塗工ガンや噴霧装置を使用せずに、液体を含浸させた多孔体３Ｐを当接させることによって液体をウェブ７に適用するので、一方ではウェブ７表面への液溜まりが発生しにくく、他方ではウェブ７に開口部分があったとしても裏側への過剰な液体抜けも発生しにくい。その結果、ウェブ７の搬送速度が高速であっても液体が飛散することもなく、ひいては製造ラインが汚染されない。
　（２）ポンプ２７（供給器）から供給される液体の量を、ダイヤル又はツマミ３７によって、ウェブ７の搬送速度や、ウェブ７上の液体の適用範囲、適用する液体の目付け等によって決定される目標値に制御することができる。それにより、液体をウェブ７に連続して安定的に適用することができる。 According to the liquid application apparatus 1 of 1st embodiment, there can exist the following effects.
(1) Since the liquid is applied to the web 7 by contacting the porous body 3P impregnated with the liquid without using a coating gun or a spraying device, a liquid pool on the surface of the web 7 occurs. On the other hand, even if the web 7 has an opening, it is difficult for excessive liquid to escape to the back side. As a result, even if the conveyance speed of the web 7 is high, the liquid is not scattered and the production line is not contaminated.
(2) The amount of liquid supplied from the pump 27 (supply device) is determined by the dial or knob 37 according to the conveyance speed of the web 7, the application range of the liquid on the web 7, the weight of the liquid to be applied, and the like. The target value can be controlled. Thereby, a liquid can be continuously applied to the web 7 stably.

　（３）安定した量の液体を適用できるので、適用する液体量の目標値よりも余分に液体を適用する必要がなく、無駄な液体の消費を防ぐことができる。
　（４）液体が適用ロール３の内部から供給され、ひいては多孔体３Ｐの内面３ＰＦＩに供給されるので、製造ラインに液体が飛散するおそれがなく、ウェブ７に適用される液体の目標値に相当する液体量を多孔体３Ｐに確実に供給することができる。 (3) Since a stable amount of liquid can be applied, it is not necessary to apply more liquid than the target amount of liquid to be applied, and wasteful consumption of liquid can be prevented.
(4) Since the liquid is supplied from the inside of the application roll 3 and eventually supplied to the inner surface 3PFI of the porous body 3P, there is no risk of the liquid splashing on the production line, which corresponds to the target value of the liquid applied to the web 7 The amount of liquid to be supplied can be reliably supplied to the porous body 3P.

　（５）様々な粘度の液体や適用する液体の目付けに適合させるように、多孔体３Ｐの素材の性状を選択することによって、搬送速度が変化するような状況においても液体をウェブ７に安定的に均等に適用することができる。
　（６）支持ロール５Ｒ（支持器）の作用により、ウェブ７の鉛直方向の高さ位置を一定に保つことができる。それにより、ウェブ７によって多孔体３Ｐが押し込まれて変形し、液体をウェブ７に適用することができる。 (5) By selecting the properties of the material of the porous body 3P so as to adapt to liquids with various viscosities and liquids to be applied, the liquid can be stably supplied to the web 7 even in a situation where the conveyance speed changes. Can be applied equally.
(6) The height position of the web 7 in the vertical direction can be kept constant by the action of the support roll 5R (support device). Thereby, the porous body 3 </ b> P is pushed and deformed by the web 7, and the liquid can be applied to the web 7.

　（７）適用ロール３は、モータ１１によって、ウェブ７の表面速度と同じ又はほぼ同じ速度の表面速度で回転しているので、多孔体３Ｐには周方向にほぼ力が加わらない。その結果、多孔体３Ｐの表面にはほぼ摩擦力が印加されず、多孔体３Ｐの耐久性が向上する。
　（８）総変形量Ｖを調節することによって、ウェブ７への液体の含浸の程度を調節することができ、さらにはウェブ７に適用する液体の量を調節することもできる。 (7) Since the application roll 3 is rotated by the motor 11 at a surface speed that is the same or substantially the same as the surface speed of the web 7, almost no force is applied to the porous body 3P in the circumferential direction. As a result, almost no frictional force is applied to the surface of the porous body 3P, and the durability of the porous body 3P is improved.
(8) By adjusting the total deformation amount V, the degree of liquid impregnation into the web 7 can be adjusted, and further, the amount of liquid applied to the web 7 can also be adjusted.

　なお、第一の実施形態では、液体適用装置１は支持ロール５Ｒを備えるが、別の実施形態では、支持ロール５Ｒを備えない。総変形量Ｖが小さい場合においては、支持ロール５Ｒがなくとも、ウェブ７に付与されている張力によって多孔体３Ｐを押し込むことができるからである。 In addition, in 1st embodiment, although the liquid application apparatus 1 is provided with the support roll 5R, in another embodiment, it is not provided with the support roll 5R. This is because, when the total deformation amount V is small, the porous body 3P can be pushed in by the tension applied to the web 7 without the support roll 5R.

　（アイドリング段階）
　ここで、第一の実施形態では、液体をウェブ７に適用し始める前に、あらかじめ液体を多孔体３Ｐ内部に実質的に均等になるように含浸させると好ましい。これにより、所望の液体量をウェブ７に適用することができる。つまり、ウェブ７に液体を適用するときに、多孔体３Ｐに含浸された液体の量がその内部で偏っていると、所望の液体量をウェブ７のそれぞれの液体適用箇所に適切に適用することができないおそれがある。その結果、不良製品が製造されることになり、このことは製造コストの観点から好ましくない。 (Idling stage)
Here, in the first embodiment, before the liquid is started to be applied to the web 7, it is preferable that the liquid is impregnated in advance so as to be substantially uniform inside the porous body 3 </ b> P. Thereby, a desired liquid amount can be applied to the web 7. That is, when the liquid is applied to the web 7, if the amount of the liquid impregnated in the porous body 3 </ b> P is biased inside the web 7, the desired liquid amount is appropriately applied to each liquid application portion of the web 7. You may not be able to. As a result, a defective product is manufactured, which is not preferable from the viewpoint of manufacturing cost.

　そこで、液体をウェブ７に適用し始める前に、図１Ｂ及び図１Ｃに示すように、適用ロール３を多孔体３Ｐがウェブ７の表面に当接しない非適用位置に配置して、上述のように、液体をタンク２３から多孔体３Ｐに供給しつつ、適用ロール３を回転させる。それにより、液体を多孔体３Ｐ内部に均等に含浸させることができる。適用ロール３を回転させることにより、液体の自重によって液体が一定の方向に偏ることを防ぐことができるからである。 Therefore, before applying the liquid to the web 7, as shown in FIG. 1B and FIG. 1C, the application roll 3 is disposed at a non-application position where the porous body 3P does not contact the surface of the web 7, as described above. The application roll 3 is rotated while supplying the liquid from the tank 23 to the porous body 3P. Thereby, the liquid can be uniformly impregnated into the porous body 3P. This is because by rotating the application roll 3, it is possible to prevent the liquid from being biased in a certain direction due to its own weight.

　しかしながら、適用ロール３を回転させると、液体が遠心力によって多孔体３Ｐの内部からウェブ対向面３ＰＦＯｐ方向に移動することにより、多孔体３Ｐから染み出す場合がある。この場合、適用ロール３の下に位置するウェブ７の部分に、又はウェブ７が適用ロール３の下から取り除かれているときは支持ロール５Ｒに液体が滴下して、製造ラインを汚染するおそれがある。このような製造ラインの汚染を防ぐために、図１Ｃに示すように、受け皿３９を上記非適用位置にある適用ロール３の鉛直方向下側である作用位置に配置しておくと好ましい。その結果、受け皿３９によって多孔体３Ｐから染み出した液体を受け取ることにより、製造ラインの汚染を防ぐことができる。 However, when the application roll 3 is rotated, the liquid may ooze out from the porous body 3P by moving in the web facing surface 3PFOp direction from the inside of the porous body 3P by centrifugal force. In this case, there is a possibility that the liquid may drip onto the portion of the web 7 located under the application roll 3 or when the web 7 is removed from under the application roll 3 to contaminate the production line. is there. In order to prevent such contamination of the production line, as shown in FIG. 1C, it is preferable that the tray 39 is disposed at the operation position on the lower side in the vertical direction of the application roll 3 at the non-application position. As a result, by receiving the liquid oozed from the porous body 3P by the receiving tray 39, it is possible to prevent the production line from being contaminated.

　また、吸収性物品の製造中に、場合により、例えば一部の製造工程に不具合が発生した場合に、液体適用装置１の液体適用作用を一時的に停止させる必要がある。この場合、通常は、タンク２３からの多孔体３Ｐへの液体の供給とウェブ７の搬送とを停止し、図１Ｂに示すように、適用ロール３を上記非適用位置に移動させる。このとき、適用ロール３の回転駆動を停止させると、多孔体３Ｐに含浸されていた液体が自重により鉛直方向下側に移動することになる。ひいては、多孔体３Ｐから液体が、その下に位置するウェブ７の部分に、又はウェブ７が適用ロール３の下から取り除かれた場合では支持ロール５Ｒに滴下して、その結果、製造ラインの汚染を引き起こすおそれがある。 Also, during the manufacture of the absorbent article, it may be necessary to temporarily stop the liquid application action of the liquid application apparatus 1 if, for example, a problem occurs in a part of the manufacturing process. In this case, normally, the supply of the liquid from the tank 23 to the porous body 3P and the conveyance of the web 7 are stopped, and the application roll 3 is moved to the non-application position as shown in FIG. 1B. At this time, when the rotational driving of the application roll 3 is stopped, the liquid impregnated in the porous body 3P moves downward in the vertical direction by its own weight. As a result, the liquid drops from the porous body 3P onto the portion of the web 7 located below or onto the support roll 5R when the web 7 is removed from under the application roll 3, resulting in contamination of the production line. May cause.

　したがって、このような製造ラインの汚染を防ぐために、液体適用装置１の液体適用作用を短時間（例えば１時間）停止する場合は、タンク２３からの多孔体３Ｐへの液体の供給を停止させて、適用ロール３の回転駆動を停止せずに継続する。これにより、液体が鉛直方向下側に移動することを抑制することができる。 Therefore, in order to prevent such contamination of the production line, when the liquid application operation of the liquid application apparatus 1 is stopped for a short time (for example, 1 hour), the supply of the liquid from the tank 23 to the porous body 3P is stopped. The rotation drive of the application roll 3 is continued without stopping. Thereby, it is possible to suppress the liquid from moving downward in the vertical direction.

　なお、このときの適用ロール３の回転速度は、液体をウェブ７に適用させるときの回転速度（例えば６００～１５００回転／分）よりも低速（例えば、３０回転／分）であると好ましい。多孔体３Ｐ内部から染み出す液体の量を減少させることができるからである。 Note that the rotation speed of the application roll 3 at this time is preferably lower (for example, 30 rotations / minute) than the rotation speed (for example, 600 to 1500 rotations / minute) when the liquid is applied to the web 7. This is because the amount of liquid that oozes out from the inside of the porous body 3P can be reduced.

　しかしながら、適用ロール３の回転駆動を継続したとしても、上述のように、場合により、液体が多孔体３Ｐから遠心力によって染み出す場合がある。したがって、このような場合においても、製造ラインが汚染されないように、図１Ｃに示すように、受け皿３９を上記作用位置に移動させると好ましい。その結果、受け皿３９によって多孔体３Ｐから染み出した液体を受け取ることにより、製造ラインの汚染を防ぐことができる。 However, even if the rotation of the application roll 3 is continued, the liquid may ooze out from the porous body 3P by centrifugal force as described above. Therefore, even in such a case, as shown in FIG. 1C, it is preferable to move the tray 39 to the above-mentioned operation position so that the production line is not contaminated. As a result, by receiving the liquid oozed from the porous body 3P by the receiving tray 39, it is possible to prevent the production line from being contaminated.

　あるいは、液体適用装置１の液体適用作用を長時間（例えば１日以上）停止する場合には、通常は、エネルギーコスト又は安全等の観点から、適用ロール３の回転駆動を停止させることが求められる。このように、適用ロール３の回転駆動を停止させた場合、上述のように液体が多孔体３Ｐから染み出して、その下に滴下する。したがって、上述の場合と同様に、図１Ｃに示すように、受け皿３９を上記作用位置に移動させて、受け皿３９によって染み出した液体を受け取ることによって、製造ラインの汚染が発生することを防ぐことが必要となる。 Alternatively, when the liquid application action of the liquid application apparatus 1 is stopped for a long time (for example, one day or longer), it is usually required to stop the rotation of the application roll 3 from the viewpoint of energy cost or safety. . Thus, when the rotation drive of the application roll 3 is stopped, the liquid oozes out from the porous body 3P as described above and drops below. Accordingly, as in the case described above, as shown in FIG. 1C, the contamination of the production line is prevented by moving the tray 39 to the above-described working position and receiving the liquid that has oozed out by the tray 39. Is required.

　以上により、ウェブ７に液体を適用する前に、適用ロール３を上記非適用位置に配置して、必要に応じて液体をタンク２３から多孔体３Ｐに供給しつつ、適用ロール３を回転させると好ましい。その結果、液体を多孔体３Ｐ内部に実質的に均等に含浸させることができる。 As described above, before applying the liquid to the web 7, the application roll 3 is arranged at the non-application position, and the application roll 3 is rotated while supplying the liquid from the tank 23 to the porous body 3 </ b> P as necessary. preferable. As a result, the liquid can be substantially uniformly impregnated inside the porous body 3P.

　第一の実施形態では、以上において説明した、ウェブ７に液体を適用する前に液体を多孔体３Ｐ内部に実質的に均等に含浸させる段階を「アイドリング段階」と呼ぶこととする。別の実施形態では、このアイドリング段階を行わずに、液体をタンク２３から多孔体３Ｐに供給して、多孔体３Ｐをウェブ７に当接させて、多孔体３Ｐが押し込まれることによって、液体をウェブ７に適用する。 In the first embodiment, the above-described step of impregnating the liquid into the porous body 3P substantially uniformly before applying the liquid to the web 7 is referred to as an “idling step”. In another embodiment, without performing this idling step, the liquid is supplied from the tank 23 to the porous body 3P, the porous body 3P is brought into contact with the web 7, and the porous body 3P is pushed in, so that the liquid is supplied. Applies to web 7.

　（第二の実施形態）
　これより図７を用いて、本発明の液体適用装置の第二の実施形態について説明する。なお、第二の実施形態については、第一の実施形態との差異点のみを説明する。 (Second embodiment)
A second embodiment of the liquid application apparatus of the present invention will be described with reference to FIG. In addition, about 2nd embodiment, only a different point from 1st embodiment is demonstrated.

　図７は、第二の実施形態の液体適用装置１の部分側面図を示している。第二の実施形態の多孔体３Ｐは、互いに多孔体素材の性状の異なる内側多孔体３ＰＬＩと外側多孔体３ＰＬＯとから構成される。したがって、適用ロール３の基部３Ｂの孔３ＢＨから導入された液体はまず、内側多孔体３ＰＬＩの内面に供給される。次いで、上述したように毛細管現象や遠心力によって液体が外側多孔体３ＰＬＯに移動する。そして、外側多孔体３ＰＬＯがウェブ７に押し込まれることによって、ウェブ７に液体が適用される。 FIG. 7 shows a partial side view of the liquid application apparatus 1 of the second embodiment. The porous body 3P of the second embodiment is composed of an inner porous body 3PLI and an outer porous body 3PLO whose properties of the porous material are different from each other. Therefore, the liquid introduced from the hole 3BH of the base 3B of the application roll 3 is first supplied to the inner surface of the inner porous body 3PLI. Next, as described above, the liquid moves to the outer porous body 3PLO by capillary action or centrifugal force. Then, the liquid is applied to the web 7 by the outer porous body 3PLO being pushed into the web 7.

　内側多孔体３ＰＬＩには、外側多孔体３ＰＬＯよりも気孔径及び／又は気孔率が大きい素材が選ばれると好ましい。それにより、内側多孔体３ＰＬＩの内面に供給された液体を、より迅速に多孔体３Ｐ全体にわたって含浸させることができるので有利である。 It is preferable that a material having a larger pore diameter and / or porosity than the outer porous body 3PLO is selected for the inner porous body 3PLI. This is advantageous because the liquid supplied to the inner surface of the inner porous body 3PLI can be more quickly impregnated over the entire porous body 3P.

　また、外側多孔体３ＰＬＯには、内側多孔体３ＰＬＩよりも硬度の低い素材が選ばれると好ましい。それにより、ウェブ７によって外側多孔体３ＰＬＯを容易に押し込むことができるので有利である。 Moreover, it is preferable that a material having a lower hardness than the inner porous body 3PLI is selected for the outer porous body 3PLO. Thereby, the outer porous body 3PLO can be easily pushed in by the web 7, which is advantageous.

　（第三の実施形態）
　これより図８を用いて、本発明の液体適用装置の第三の実施形態について説明する。なお、第三の実施形態については、第一の実施形態との差異点のみを説明する。 (Third embodiment)
A third embodiment of the liquid application apparatus of the present invention will be described with reference to FIG. In addition, about 3rd embodiment, only a different point from 1st embodiment is demonstrated.

　図８は、第三の実施形態の液体適用装置１の部分側面図を示している。第三の実施形態では、ウェブ７は、厚物ウェブであり、吸収性物品を構成する複数のウェブ、例えばトップシート、吸収体、バックシート等が組付けられているウェブである。 FIG. 8 shows a partial side view of the liquid application apparatus 1 of the third embodiment. In the third embodiment, the web 7 is a thick web, and is a web in which a plurality of webs constituting the absorbent article, for example, a top sheet, an absorbent body, a back sheet, and the like are assembled.

　また、第三の実施形態では、液体適用装置１は支持器として、支持ロール５Ｒではなくベルトコンベア５Ｂを具備する。ウェブ７が厚物ウェブである場合、第一の実施形態のように、ウェブ７を一定の高さ位置に支持する、湾曲面形状をなす支持面５ＲＳ（図６Ａ及び図６Ｂ）を含む支持ロール５Ｒ（図２等）を使用して、ウェブ７を支持すると、図６Ａに示されているようにウェブ７が湾曲して、支持ロール５Ｒに貼り付いてしまう。したがって、この貼り付きを防ぐために、ウェブ７が厚物である場合は平面形状の支持面５ＢＳを有するベルトコンベア５Ｂを使用することが好ましい。別の実施形態では、液体適用装置１はベルトコンベア５Ｂの代わりに、平面形状の支持面を含む板である受け板を具備する。 Moreover, in 3rd embodiment, the liquid application apparatus 1 comprises not the support roll 5R but the belt conveyor 5B as a support device. When the web 7 is a thick web, as in the first embodiment, a support roll including a support surface 5RS (FIGS. 6A and 6B) having a curved surface shape that supports the web 7 at a certain height position. If 5R (FIG. 2 etc.) is used and the web 7 is supported, the web 7 will curve as shown in FIG. 6A, and will stick to the support roll 5R. Therefore, in order to prevent this sticking, it is preferable to use a belt conveyor 5B having a planar support surface 5BS when the web 7 is thick. In another embodiment, the liquid application apparatus 1 includes a receiving plate that is a plate including a planar support surface, instead of the belt conveyor 5B.

　この構成により、上述したようなウェブ７の貼り付きを考慮することなく、任意の総変形量Ｖを適用することができるので、効果的に液体をウェブ７に含浸させることができる。その結果、ウェブ７の厚さ方向の奥まで液体を適用することができるので有利である。 With this configuration, the arbitrary total deformation amount V can be applied without considering the sticking of the web 7 as described above, so that the web 7 can be effectively impregnated with the liquid. As a result, the liquid can be applied to the depth of the web 7 in the thickness direction, which is advantageous.

　（第四の実施形態）
　これより図９を用いて、本発明の液体適用装置の第四の実施形態について説明する。なお、第四の実施形態については、第三の実施形態との差異点のみを説明する。 (Fourth embodiment)
A fourth embodiment of the liquid application apparatus of the present invention will be described with reference to FIG. In addition, about 4th embodiment, only a different point from 3rd embodiment is demonstrated.

　図９は、第四の実施形態の液体適用装置１の部分側面図を示している。第四の実施形態では、ウェブ７は部分的に厚いウェブである。例えば、ウェブ７は生理用ナプキンの、トップシート、吸収体、バックシート、ナプキンをショーツに粘着するための粘着剤及びその粘着剤の剥離紙を少なくとも含む半製品が搬送方向に連続している半製品連続体である。この場合では、ウェブ７の厚い部分７Ａは、個々の生理用ナプキンの中央部分であって、他の部分と比較して厚くなっている中高部に相当する部分である。なお、図９における中高部に相当する部分の厚さは、極端に厚く描かれていることに留意されたい。この半製品連続体は、吸収性物品の製品の形状に切断することによって使用可能な製品にすることができる状態のものである。この半製品連続体に液体を適用する工程は、製品の形状に半製品連続体を製品の形状に切断する工程の直前に行われるものである。この段階で液体を適用することにより、ウェブ７に適用された液体が別の吸収性物品の構成要素を組付ける工程の装置や製造ライン等に付着することが避けられるので好ましい。 FIG. 9 shows a partial side view of the liquid application apparatus 1 of the fourth embodiment. In the fourth embodiment, the web 7 is a partially thick web. For example, the web 7 includes a sanitary napkin, a top sheet, an absorbent body, a back sheet, a semi-finished product including at least a pressure-sensitive adhesive for sticking the napkin to the shorts, and a release paper of the pressure-sensitive adhesive. Product continuum. In this case, the thick portion 7A of the web 7 is a central portion of each sanitary napkin and corresponds to a middle-high portion that is thicker than the other portions. It should be noted that the thickness of the portion corresponding to the middle-high portion in FIG. 9 is drawn extremely thick. This semi-finished product continuum is in a state where it can be made into a usable product by cutting it into the shape of the product of the absorbent article. The step of applying the liquid to the semi-finished product continuum is performed immediately before the step of cutting the semi-finished product continuum into the product shape. By applying the liquid at this stage, it is preferable that the liquid applied to the web 7 is prevented from adhering to an apparatus, a production line, or the like in the process of assembling the components of another absorbent article.

　図９に示されているように、適用ロール３は、多孔体３Ｐの表面がウェブ７の厚い部分７Ａの表面に当接するが、ウェブ７の薄い部分７Ｂには当接しないような高さ位置に配置されている。その結果、ウェブの厚い部分７Ａのみに選択的に液体を適用することができるので有利である。 As shown in FIG. 9, the application roll 3 is positioned so that the surface of the porous body 3 </ b> P contacts the surface of the thick portion 7 </ b> A of the web 7, but does not contact the thin portion 7 </ b> B of the web 7. Is arranged. As a result, the liquid can be selectively applied only to the thick part 7A of the web, which is advantageous.

　（第五の実施形態）
　これより図１０を用いて、本発明の液体適用装置１の第五の実施形態について説明する。なお、第五の実施形態については、第三の実施形態との差異点のみを説明する。 (Fifth embodiment)
A fifth embodiment of the liquid application apparatus 1 according to the present invention will now be described with reference to FIG. In addition, about 5th embodiment, only a different point from 3rd embodiment is demonstrated.

　図１０は、第五の実施形態の液体適用装置１の部分側面図を示している。第五の実施形態では、第四の実施形態とは逆に、ウェブ７の表面が全体にわたって平面であって、多孔体３Ｐに厚い部分、すなわち凸部３ＰＰを有するように多孔体３Ｐを形成することができる。それにより、多孔体３Ｐのうち凸部３ＰＰのみがウェブ７に選択的に当接して、さらにウェブ７によって凸部３ＰＰが押し込まれて、ウェブ７の凸部３ＰＰが当接した部分のみに、選択的に液体を適用することができる。 FIG. 10 shows a partial side view of the liquid application apparatus 1 of the fifth embodiment. In the fifth embodiment, contrary to the fourth embodiment, the surface of the web 7 is entirely flat, and the porous body 3P is formed so that the porous body 3P has a thick portion, that is, a convex portion 3PP. be able to. Thereby, only the convex portion 3PP of the porous body 3P is selectively brought into contact with the web 7, and further, the convex portion 3PP is pushed by the web 7, and only the portion of the web 7 where the convex portion 3PP is in contact is selected. Liquid can be applied.

　第五の実施形態ではウェブ７は平面状であるが、別の実施形態では、第四の実施形態に関する図９に記載されているようにウェブ７が厚い部分及び薄い部分を含む。そして、多孔体３Ｐの凸部３ＰＰがウェブの薄い部分に当接して押し込まれるようにすることによって、液体を当該薄い部分に適用することもできる。 In the fifth embodiment, the web 7 is planar, but in another embodiment, the web 7 includes a thick portion and a thin portion as described in FIG. 9 for the fourth embodiment. And it can also apply a liquid to the said thin part by making the convex part 3PP of the porous body 3P contact | abut and press into the thin part of a web.

　第五の実施形態では、多孔体３Ｐには、凸部３ＰＰが形成されることに伴って、凹部３ＰＲと呼ぶべき部分も同時に形成されている。この凹部３ＰＲは、ウェブ７には当接しない構成になっている。しかしながら、別の実施形態では、凸部３ＰＰ及び凹部３ＰＲの高低差を小さくすることによって、凸部３ＰＰ及び凹部３ＰＲが両方共にウェブ７に当接するように構成される。この場合、凸部３ＰＰにおける総変形量Ｖが凹部３ＰＲにおける総変形量Ｖよりも大きくなるので、凸部３ＰＰが当接したウェブ７部分の液体の目付けが、凹部３ＰＲが当接したウェブ７部分よりも多くなる。その結果、ウェブ７の部分によって液体の目付けを選択的かつ局所的に変えることができるので有利である。 In the fifth embodiment, along with the formation of the convex portion 3PP, the porous body 3P is also formed with a portion to be called the concave portion 3PR. The recess 3PR is configured not to contact the web 7. However, in another embodiment, both the convex portion 3PP and the concave portion 3PR are configured to contact the web 7 by reducing the height difference between the convex portion 3PP and the concave portion 3PR. In this case, since the total deformation amount V in the convex portion 3PP is larger than the total deformation amount V in the concave portion 3PR, the liquid weight of the web 7 portion in contact with the convex portion 3PP is equal to the web 7 portion in which the concave portion 3PR contacts. More than. As a result, it is advantageous because the basis weight of the liquid can be selectively and locally changed by the portion of the web 7.

　（第六の実施形態）
　これより図１１及び図１２を用いて、本発明の液体適用装置１の第六の実施形態について説明する。なお、第六の実施形態については、第一の実施形態との差異点のみを説明する。 (Sixth embodiment)
A sixth embodiment of the liquid application apparatus 1 of the present invention will be described with reference to FIGS. 11 and 12. In the sixth embodiment, only differences from the first embodiment will be described.

　図１１及び図１２はそれぞれ、第六の実施形態の液体適用装置１の部分概略図及び部分側面図を示している。第六の実施形態では、液体は適用ロール３ではなく、適用ロール３の多孔体３Ｐの外面３ＰＦＯと当接して押し込まれるように構成されている外部供給ロール５１に供給される。外部供給ロール５１は、その軸体５１Ａと軸体５１Ａの周囲を覆うように形成された供給多孔体５１Ｐとから構成される。外部供給ロール５１は、支柱５３によって回転自在に支持されている。 FIGS. 11 and 12 show a partial schematic view and a partial side view of the liquid application apparatus 1 of the sixth embodiment, respectively. In the sixth embodiment, the liquid is supplied not to the application roll 3 but to the external supply roll 51 configured to be pressed in contact with the outer surface 3PFO of the porous body 3P of the application roll 3. The external supply roll 51 includes a shaft body 51A and a supply porous body 51P formed so as to cover the periphery of the shaft body 51A. The external supply roll 51 is rotatably supported by a support column 53.

　第六の実施形態では、チューブ２９は、ポンプ２７を、第一の実施形態とは異なり、分配器３１とではなく、ロータリジョイント５５を介して外部供給ロール５１の軸体５１Ａと接続する。軸体５１Ａは中空であるとともに、供給多孔体５１Ｐと接触する部分に、軸体５１Ａの中空部分に貫通する複数の孔（図示しない）を有している。ポンプ２７はまず、軸体５１Ａの中空部分に液体を供給する。次いで、軸体５１Ａの複数の孔を介して供給多孔体５１Ｐの内面から軸体５１Ａの中空部分の液体を、供給多孔体５１Ｐに供給する。その結果、供給多孔体５１Ｐに液体が含浸される。 In the sixth embodiment, the tube 29 connects the pump 27 to the shaft body 51A of the external supply roll 51 via the rotary joint 55 instead of the distributor 31, unlike the first embodiment. The shaft body 51A is hollow, and has a plurality of holes (not shown) penetrating through the hollow portion of the shaft body 51A in a portion in contact with the supply porous body 51P. The pump 27 first supplies a liquid to the hollow portion of the shaft body 51A. Next, the liquid in the hollow portion of the shaft body 51A is supplied to the supply porous body 51P from the inner surface of the supply porous body 51P through the plurality of holes of the shaft body 51A. As a result, the supply porous body 51P is impregnated with the liquid.

　別の実施形態では、ポンプ２７は、外部供給ロール５１の軸体５１Ａ及びロータリジョイント５５を介さず、外部供給ロール５１に直接、例えば噴射又は滴下することによって液体を供給する。 In another embodiment, the pump 27 supplies liquid by, for example, jetting or dropping directly to the external supply roll 51 without passing through the shaft body 51A and the rotary joint 55 of the external supply roll 51.

　このようにして液体が含浸された供給多孔体５１Ｐが、適用ロール３の多孔体３Ｐと当接して押し込まれることによって、供給多孔体５１Ｐに含浸されている液体が染み出す。次いで、この染み出した液体が多孔体３Ｐの外面３ＰＦＯに供給される。このようにして、ポンプ２７（供給器）が、液体を多孔体３Ｐの外面３ＰＦＯに液体を供給する。 The supply porous body 51P impregnated with the liquid in this way is pressed into contact with the porous body 3P of the application roll 3, so that the liquid impregnated in the supply porous body 51P oozes out. Next, the oozed liquid is supplied to the outer surface 3PFO of the porous body 3P. In this way, the pump 27 (supply device) supplies the liquid to the outer surface 3PFO of the porous body 3P.

　このように、多孔体３Ｐの外面３ＰＦＯから液体を供給すると、多孔体３Ｐ全体に液体を含浸させる必要がなく、ウェブ７の表面と当接してウェブ７に液体を適用する多孔体３Ｐの部分に、液体を確実に供給することができるので有利である。また、適用ロール３の内部に分配器等の液体を供給する構成要素を設ける必要がなく、適用ロール３の構成を簡素化することができるので有利である。 As described above, when the liquid is supplied from the outer surface 3PFO of the porous body 3P, it is not necessary to impregnate the entire porous body 3P, and the portion of the porous body 3P that contacts the surface of the web 7 and applies the liquid to the web 7 is applied. This is advantageous because the liquid can be reliably supplied. Further, it is not necessary to provide a component such as a distributor for supplying the liquid inside the application roll 3, which is advantageous because the configuration of the application roll 3 can be simplified.

　なお、本明細書、図面及び特許請求の範囲から当業者によって理解されることのできるような全ての特徴は、これらの特徴が特定の他の特徴に関連してのみ組み合わされて説明されたとしても、それらの特徴が明確に除外されない限り、又は技術的な態様が不可能な若しくは意味のない組み合わせにならない限りにおいて、独立して、またさらに、ここで開示された他の特徴又は特徴の複数の群と任意に組み合わせて、結合されることができるものとする。 It should be noted that all features that can be understood by those skilled in the art from the specification, drawings, and claims are described as a combination of these features only in relation to certain other features. Unless otherwise expressly excluded, or unless the technical aspects are impossible or meaningless combinations, independently and in addition to other features or features disclosed herein. And can be combined in any combination.

　例えば、本発明は、以下に示すような変形実施形態も含む。 For example, the present invention includes the following modified embodiments.

　ウェブ７が厚物ウェブ又は厚い部分７Ａを含む実施形態では、支持器にはベルトコンベア５Ｂを使用した。しかしながら、上述したようなウェブ７の支持ロール５Ｒへの貼り付き等の問題が発生しないのであれば、これらのウェブに対してベルトコンベア５Ｂではなく支持ロール５Ｒを使用してもよい。第一、第二及び第六の実施形態では、支持ロール５Ｒの代わりにベルトコンベア５Ｂを使用することができる。 In an embodiment in which the web 7 includes a thick web or a thick portion 7A, a belt conveyor 5B is used as the support. However, if the problem such as the sticking of the web 7 to the support roll 5R as described above does not occur, the support roll 5R may be used instead of the belt conveyor 5B for these webs. In the first, second and sixth embodiments, a belt conveyor 5B can be used instead of the support roll 5R.

　また、第二の実施形態において説明した、内側多孔体３ＰＬＩと外側多孔体３ＰＬＯとから構成される多孔体３Ｐを、その他の実施形態の適用ロール３の多孔体３Ｐとして使用することができる。このとき、多孔体３Ｐが凸部３ＰＰを有する場合は、凸部３ＰＰは、外側多孔体３ＰＬＯに形成される。 Further, the porous body 3P composed of the inner porous body 3PLI and the outer porous body 3PLO described in the second embodiment can be used as the porous body 3P of the application roll 3 of other embodiments. At this time, when the porous body 3P has the convex portion 3PP, the convex portion 3PP is formed on the outer porous body 3PLO.

　さらに別の実施形態では、第六の実施形態の外部適用ロール５１をその他の実施形態の液体適用装置１に設けることによって、液体を多孔体３Ｐの外面３ＰＦＯに供給する。 In still another embodiment, the liquid is supplied to the outer surface 3PFO of the porous body 3P by providing the external application roll 51 of the sixth embodiment in the liquid application apparatus 1 of the other embodiments.

　また、第一の実施形態において説明した「アイドリング段階」を、第二～第六の実施形態においても、ウェブ７に液体を適用する前に行うことができ、さらに液体適用装置１に受け皿３９を設けることができる。そして、第二～第六の実施形態においても、適用ロール３を上記適用位置及び非適用位置に配置することができ、かつ、受け皿３９を上記退避位置及び作用位置に配置することができる。このとき、第六の実施形態では、適用ロール３は、上記非適用位置にあるときにも多孔体３Ｐに液体を適用できるように、液体適用装置１に別の外部供給ロールを備えてもよい。あるいは、第六の実施形態では、上記適用位置及び非適用位置にある適用ロール３の多孔体３Ｐのいずれにも液体を供給できるように、外部供給ロール５１を移動できるように設けてもよい。 Further, the “idling stage” described in the first embodiment can also be performed before applying the liquid to the web 7 in the second to sixth embodiments, and the tray 39 is provided in the liquid application apparatus 1. Can be provided. Also in the second to sixth embodiments, the application roll 3 can be disposed at the application position and the non-application position, and the tray 39 can be disposed at the retraction position and the operation position. At this time, in the sixth embodiment, the application roll 3 may include another external supply roll in the liquid application apparatus 1 so that the liquid can be applied to the porous body 3P even when the application roll 3 is in the non-application position. . Or in 6th embodiment, you may provide so that the external supply roll 51 can be moved so that a liquid can be supplied to any of the porous body 3P of the application roll 3 in the said application position and a non-application position.

　本発明は、以下のように規定される。 The present invention is defined as follows.

　（１）　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用装置であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールと、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する供給器と、
　を具備し、
　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールが前記ウェブに対して配置され、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される、
　液体適用装置。 (1) A liquid application apparatus for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article,
An application roll in which the entire peripheral surface is covered with a porous body that is compressively deformable including continuous pores and is rotatably supported;
A feeder for supplying the liquid to the application roll so that the porous body is impregnated;
Comprising
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. The liquid impregnated in the porous body is applied to the web.
Liquid application equipment.

　（２）　さらに、前記ウェブを介して前記適用ロールと対向する位置に設けられた、前記ウェブを支持する支持面を含む支持器を備え、
　前記支持器の前記ウェブを支持する前記支持面が湾曲面形状又は平面形状である、
　（１）に記載の液体適用装置。 (2) Furthermore, provided with the support device provided in the position facing the said application roll through the said web, and the support surface which supports the said web,
The support surface that supports the web of the support is a curved surface shape or a planar shape,
The liquid application apparatus according to (1).

　（３）　前記供給器が、前記液体を前記多孔体の内面に供給する、
　（１）又は（２）に記載の液体適用装置。 (3) The supply device supplies the liquid to the inner surface of the porous body.
The liquid application apparatus according to (1) or (2).

　（４）　前記供給器が、前記液体を前記多孔体の外面に供給する、
　（１）～（３）のいずれか１つに記載の液体適用装置。 (4) The supply unit supplies the liquid to the outer surface of the porous body.
(1) to (3) The liquid application apparatus according to any one of (1) to (3).

　（５）　前記供給器が、前記適用ロールに供給される液体量を調節可能である、
　（１）～（４）のいずれか１つに記載の液体適用装置。 (5) The supply device is capable of adjusting the amount of liquid supplied to the application roll.
(1) to (4) The liquid application apparatus according to any one of (4).

　（６）　さらに、前記適用ロールを回転駆動させるモータを備え、
　前記適用ロールが前記ウェブの搬送速度と同じ速度の表面速度で回転される、
　（１）～（５）のいずれか１つに記載の液体適用装置。 (6) Furthermore, a motor for rotating the application roll is provided,
The application roll is rotated at a surface speed that is the same as the web transport speed;
(1) to (5) The liquid application apparatus according to any one of (5).

　（７）　前記液体が、０．０５～４Ｐａ・ｓの範囲の粘度を有する、
　（１）～（６）のいずれか１つに記載の液体適用装置。 (7) the liquid has a viscosity in the range of 0.05 to 4 Pa · s;
(1) to (6) The liquid application apparatus according to any one of (6).

　（８）　前記ウェブに適用された前記液体の目付けが、１～１５ｇ／ｍ２である、
　（１）～（７）のいずれか１つに記載の液体適用装置。 (8) The basis weight of the liquid applied to the web is 1 to 15 g / m 2 .
(1) The liquid application apparatus according to any one of (7).

　（９）　前記多孔体と前記ウェブとの総変形量が１～１０ｍｍである、
　（１）～（８）のいずれか１つに記載の液体適用装置。 (9) The total deformation amount of the porous body and the web is 1 to 10 mm.
(1) The liquid application apparatus according to any one of (8).

　（１０）　前記適用ロールを、前記液体を前記ウェブに適用しない非適用位置に配置することができ、
　前記非適用位置にある前記適用ロールの鉛直方向下側である作用位置と、前記適用ロールの回転駆動を妨げない箇所である退避位置とに配置することができる受け皿をさらに備える、
　（１）～（９）のいずれか１つに記載の液体適用装置。 (10) The application roll can be arranged at a non-application position where the liquid is not applied to the web.
It further comprises a saucer that can be disposed at an action position that is vertically below the application roll in the non-application position and a retreat position that is a position that does not hinder the rotational drive of the application roll.
(1) The liquid application apparatus according to any one of (9).

　（１１）　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用方法であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールを用意するロール用意段階と、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する液体供給段階と、
　　　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールを前記ウェブに対して配置し、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される液体適用段階と、
　を含む、
　液体適用方法。 (11) A liquid application method for applying a liquid to a continuously conveyed web, which is used for manufacturing an absorbent article,
A roll preparation step of preparing an application roll in which the entire peripheral surface is covered with a porous body that can be deformed by compression including continuous pores and is rotatably supported;
A liquid supply step of supplying the liquid to the application roll so that the porous body is impregnated;
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. A liquid application step in which the liquid impregnated in the porous body is applied to the web;
including,
Liquid application method.

　（１２）　前記液体適用段階の前に、前記適用ロールを、前記液体を前記ウェブに適用しない非適用位置に配置して回転させるアイドリング段階をさらに含む、
　（１１）に記載の液体適用方法。 (12) It further includes an idling step of rotating the application roll in a non-application position where the liquid is not applied to the web before the liquid application step.
The liquid application method according to (11).

　（１３）　前記アイドリング段階における前記適用ロールの回転速度は、前記液体適用段階における前記適用ロールの回転速度よりも低い、
　（１２）に記載の液体適用方法。 (13) The rotation speed of the application roll in the idling stage is lower than the rotation speed of the application roll in the liquid application stage.
The liquid application method according to (12).

　１　　液体適用装置
　３　　適用ロール
　３Ｐ　　多孔体
　７　　ウェブ
　２７　　ポンプ DESCRIPTION OF SYMBOLS 1 Liquid application apparatus 3 Application roll 3P Porous body 7 Web 27 Pump

Claims (13)

　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用装置であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールと、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する供給器と、
　を具備し、
　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールが前記ウェブに対して配置され、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される、
　液体適用装置。 A liquid application apparatus for applying a liquid to a continuously conveyed web used for manufacturing an absorbent article,
An application roll in which the entire peripheral surface is covered with a porous body that is compressively deformable including continuous pores and is rotatably supported;
A feeder for supplying the liquid to the application roll so that the porous body is impregnated;
Comprising
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. The liquid impregnated in the porous body is applied to the web.
Liquid application equipment. 　さらに、前記ウェブを介して前記適用ロールと対向する位置に設けられた、前記ウェブを支持する支持面を含む支持器を備え、
　前記支持器の前記ウェブを支持する前記支持面が湾曲面形状又は平面形状である、
　請求項１に記載の液体適用装置。 Furthermore, a support device including a support surface that supports the web provided at a position facing the application roll via the web,
The support surface that supports the web of the support is a curved surface shape or a planar shape,
The liquid application apparatus according to claim 1. 　前記供給器が、前記液体を前記多孔体の内面に供給する、
　請求項１又は２に記載の液体適用装置。 The supply device supplies the liquid to the inner surface of the porous body;
The liquid application apparatus according to claim 1 or 2. 　前記供給器が、前記液体を前記多孔体の外面に供給する、
　請求項１～３のいずれか１項に記載の液体適用装置。 The supply device supplies the liquid to the outer surface of the porous body;
The liquid application apparatus according to any one of claims 1 to 3. 　前記供給器が、前記適用ロールに供給される液体量を調節可能である、
　請求項１～４のいずれか１項に記載の液体適用装置。 The supply device is capable of adjusting the amount of liquid supplied to the application roll.
The liquid application apparatus according to any one of claims 1 to 4. 　さらに、前記適用ロールを回転駆動させるモータを備え、
　前記適用ロールが前記ウェブの搬送速度と同じ速度の表面速度で回転される、
　請求項１～５のいずれか１項に記載の液体適用装置。 Furthermore, a motor for rotating the application roll is provided,
The application roll is rotated at a surface speed that is the same as the web transport speed;
The liquid application apparatus according to any one of claims 1 to 5. 　前記液体が、０．０５～４Ｐａ・ｓの範囲の粘度を有する、
　請求項１～６のいずれか１項に記載の液体適用装置。 The liquid has a viscosity in the range of 0.05 to 4 Pa · s,
The liquid application apparatus according to any one of claims 1 to 6. 　前記ウェブに適用された前記液体の目付けが、１～１５ｇ／ｍ２である、
　請求項１～７のいずれか１項に記載の液体適用装置。 The basis weight of the liquid applied to the web is 1 to 15 g / m 2 ;
The liquid application apparatus according to any one of claims 1 to 7. 　前記多孔体と前記ウェブとの総変形量が１～１０ｍｍである、
　請求項１～８のいずれか１項に記載の液体適用装置。 The total deformation of the porous body and the web is 1 to 10 mm;
The liquid application apparatus according to any one of claims 1 to 8. 　前記適用ロールを、前記液体を前記ウェブに適用しない非適用位置に配置することができ、
　前記非適用位置にある前記適用ロールの鉛直方向下側である作用位置と、前記適用ロールの回転駆動を妨げない箇所である退避位置とに配置することができる受け皿をさらに備える、
　請求項１～９のいずれか１項に記載の液体適用装置。 The application roll can be placed in a non-application position where the liquid is not applied to the web;
It further comprises a saucer that can be disposed at an action position that is vertically below the application roll in the non-application position and a retreat position that is a position that does not hinder the rotational drive of the application roll.
The liquid application apparatus according to any one of claims 1 to 9. 　吸収性物品の製造に用いられる、連続的に搬送されているウェブに液体を適用する液体適用方法であって、
　　　連続気孔を含む圧縮変形可能な多孔体により周面全体が覆われていると共に回転可能に支持されている適用ロールを用意するロール用意段階と、
　　　前記多孔体に含浸されるように前記液体を前記適用ロールに供給する液体供給段階と、
　　　前記多孔体のうち前記ウェブの表面と当接する部分が前記ウェブによって半径方向内向きに押し込まれるように、前記適用ロールを前記ウェブに対して配置し、前記ウェブ搬送時に前記適用ロールが回転することにより、前記多孔体に含浸されている前記液体が前記ウェブに適用される液体適用段階と、
　を含む、
　液体適用方法。 A liquid application method for applying a liquid to a continuously conveyed web used in the manufacture of absorbent articles,
A roll preparation step of preparing an application roll in which the entire peripheral surface is covered with a porous body that can be deformed by compression including continuous pores and is rotatably supported;
A liquid supply step of supplying the liquid to the application roll so that the porous body is impregnated;
The application roll is arranged with respect to the web such that a portion of the porous body that contacts the surface of the web is pushed inward in the radial direction by the web, and the application roll rotates during the web conveyance. A liquid application step in which the liquid impregnated in the porous body is applied to the web;
including,
Liquid application method. 　前記液体適用段階の前に、前記適用ロールを、前記液体を前記ウェブに適用しない非適用位置に配置して回転させるアイドリング段階をさらに含む、
　請求項１１に記載の液体適用方法。 Further comprising an idling step of rotating the application roll in a non-application position where the liquid is not applied to the web prior to the liquid application step.
The liquid application method according to claim 11. 　前記アイドリング段階における前記適用ロールの回転速度は、前記液体適用段階における前記適用ロールの回転速度よりも低い、
　請求項１２に記載の液体適用方法。 The rotation speed of the application roll in the idling stage is lower than the rotation speed of the application roll in the liquid application stage,
The liquid application method according to claim 12.
PCT/JP2013/077161 2012-10-10 2013-10-04 Liquid application device and liquid application method Ceased WO2014057895A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-224998 2012-10-10
JP2012224998A JP6118061B2 (en) 2012-10-10 2012-10-10 Liquid application apparatus and liquid application method

Publications (1)

Publication Number Publication Date
WO2014057895A1 true WO2014057895A1 (en) 2014-04-17

Family

ID=50477362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/077161 Ceased WO2014057895A1 (en) 2012-10-10 2013-10-04 Liquid application device and liquid application method

Country Status (3)

Country Link
JP (1) JP6118061B2 (en)
TW (1) TW201438678A (en)
WO (1) WO2014057895A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167055U (en) * 1984-04-17 1985-11-06 トツパン・ム−ア株式会社 Continuous paper folding and gluing equipment
JPS62273070A (en) * 1986-05-19 1987-11-27 Fuaintetsuku Kenkyusho:Kk Apparatus for forming film to surface of plastic film or sheet moving continuously at ultrahigh speed
JPH10151390A (en) * 1996-11-22 1998-06-09 Tokyo Copal Kagaku Kk Roll coating device
JP2009233628A (en) * 2008-03-28 2009-10-15 Toray Ind Inc Coating supply roll, roll applicator, and method of manufacturing coated web
JP2010201322A (en) * 2009-03-02 2010-09-16 Uni Charm Corp Coating apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235425A1 (en) * 1986-02-28 1987-09-09 Acumeter Laboratories Inc. Porous roll fluid coating applicator and method
JP2002102761A (en) * 2000-09-27 2002-04-09 Nichias Corp Oil application roller
JP2007050311A (en) * 2005-08-15 2007-03-01 Toyo Seikan Kaisha Ltd Coating roll
JP5324154B2 (en) * 2007-08-06 2013-10-23 花王株式会社 Liquid coating apparatus and method for manufacturing absorbent article

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167055U (en) * 1984-04-17 1985-11-06 トツパン・ム−ア株式会社 Continuous paper folding and gluing equipment
JPS62273070A (en) * 1986-05-19 1987-11-27 Fuaintetsuku Kenkyusho:Kk Apparatus for forming film to surface of plastic film or sheet moving continuously at ultrahigh speed
JPH10151390A (en) * 1996-11-22 1998-06-09 Tokyo Copal Kagaku Kk Roll coating device
JP2009233628A (en) * 2008-03-28 2009-10-15 Toray Ind Inc Coating supply roll, roll applicator, and method of manufacturing coated web
JP2010201322A (en) * 2009-03-02 2010-09-16 Uni Charm Corp Coating apparatus

Also Published As

Publication number Publication date
TW201438678A (en) 2014-10-16
JP2014076155A (en) 2014-05-01
JP6118061B2 (en) 2017-04-19

Similar Documents

Publication Publication Date Title
US7752995B2 (en) Slot-coating apparatus
US9649229B2 (en) Process for preparing an absorbent article
CN108135758B (en) Apparatus and method for non-contact printing of active substances onto webs and articles
KR101683973B1 (en) Half cutting apparatus for sticker
WO2009008982A3 (en) Single phase proximity head having a controlled meniscus for treating a substrate
JP2012228639A (en) Powder scattering apparatus
JP6139283B2 (en) Hot melt adhesive coating apparatus and hot melt adhesive coating method
WO2014057895A1 (en) Liquid application device and liquid application method
JP6141152B2 (en) Liquid application apparatus and liquid application method
US20070209587A1 (en) Dosing Device And Apparatus For Applying Adhesives To At Least One Dosing Device, And Substrate Web
JP5899424B2 (en) Coating apparatus and coating method
JP3168880U (en) Board coating equipment
US8147899B2 (en) Methods and systems for depositing coating on a medical device
EP1954408A1 (en) Method and device for coating
JP2019076832A (en) Liquid coating device and liquid coated object manufacturing method
JPH04247259A (en) Device for applying adhesive agent to sheet material
WO2008131232A2 (en) Spread coating a medical device
EP3892246B1 (en) Method for applying a polymeric composition and absorbent articles comprising such composition
JP2012250190A (en) Coating equipment
JP5802100B2 (en) Oil supply device to gel sheet cutting blade and gel sheet manufacturing device
JP2019507000A5 (en)
JP6290495B2 (en) Gravure coating equipment
JP2001179151A (en) Gravure coating method and gravure coater
KR20160052495A (en) Half cutting apparatus for sticker
CN111448004A (en) Liquid coating method and manufacturing method of absorbent article

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13844635

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13844635

Country of ref document: EP

Kind code of ref document: A1