WO2011080938A1 - ティシュペーパー製品用二次原反ロールの製造方法 - Google Patents
ティシュペーパー製品用二次原反ロールの製造方法 Download PDFInfo
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- WO2011080938A1 WO2011080938A1 PCT/JP2010/062940 JP2010062940W WO2011080938A1 WO 2011080938 A1 WO2011080938 A1 WO 2011080938A1 JP 2010062940 W JP2010062940 W JP 2010062940W WO 2011080938 A1 WO2011080938 A1 WO 2011080938A1
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- WIPO (PCT)
- Prior art keywords
- tissue paper
- continuous sheet
- roll
- chemical solution
- chemical
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
- B31D1/04—Multiple-step processes for making flat articles ; Making flat articles the articles being napkins, handkerchiefs, towels, doilies, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
- B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/02—Patterned paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/02—Patterned paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0758—Characteristics of the embossed product
- B31F2201/0761—Multi-layered
- B31F2201/0764—Multi-layered the layers being nested
Definitions
- the present invention relates to a method for producing a secondary roll for tissue paper products to be used in a multi-stand type interfolder.
- Tissue paper boxed products are generally obtained by stacking a plurality of continuous tissue papers with an interfolder (folding facility) while stacking them, cutting them to a predetermined length, etc., and obtaining the tissue paper bundles. It is manufactured by storing in a storage box (tissue carton).
- a primary web roll (generally also called a jumbo roll) is manufactured by making a thin paper in a papermaking facility and winding it. Then, this primary web roll is set on a ply machine, and a plurality of primary webs are produced.
- the primary continuous sheet fed from the roll is overlapped and wound and slit (divided into the product width of the tissue paper product or a multiple of the width of the tissue paper product in the width direction) to produce a secondary raw roll made of a plurality of plies.
- the secondary continuous sheet is fed out from the secondary web roll and fed to the folding mechanism, where it is stacked while being folded, and then cut into a predetermined length to form a tissue paper bundle, which is stored in a storage box.
- a manufacturing method using such a multi-stand type interfolder has a higher number of folding mechanisms (usually 80 to 100) than a manufacturing method using other folding equipment, and is therefore highly productive. Has advantages.
- tissue paper products coated with a chemical such as a moisturizing agent has been increasing.
- various manufacturing methods and facilities disclosed in Patent Documents 5 to 7 below have been proposed.
- Such tissue paper products are generally manufactured mainly by a rotary interfolder (for example, Patent Document 5 below).
- the rotary type interfolder has a drawback in that productivity is low because folding and cutting are simultaneously performed in the direction perpendicular to the processing direction.
- tissue paper products coated with chemicals using a manufacturing method that uses a multi-stand type interfolder, which has a higher processing speed than a rotary type interfolder.
- a chemical solution coating step is provided separately from the manufacturing facility for the secondary roll for paper products) and the multi-stand type interfolder, there is a problem that a large equipment cost is required.
- a separate chemical solution application process is provided, when producing tissue paper products that do not have a chemical solution applied on the same line, it is necessary to provide a separate line that avoids the chemical solution application process, and it is easy to switch the presence or absence of chemical application There was a problem that it was not possible.
- a main problem of the present invention is a method for producing a secondary raw roll for tissue paper products having a chemical solution application step, and it is possible to prevent peeling and misalignment between layers of a laminated continuous sheet coated with a chemical solution. It is providing the manufacturing method of the secondary raw material roll for a certain tissue paper product.
- a method for producing a secondary web roll for tissue paper products wherein a plurality of secondary web rolls for tissue paper products are continuously produced from the primary web roll, A lamination step in which a primary continuous sheet fed from a plurality of primary fabric rolls is laminated along the continuous direction to form a laminated continuous sheet; A contact embossing process for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; After the contact embossing step, a chemical solution applying step for applying a chemical solution to the laminated continuous sheet; A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, A tissue paper product comprising: a winding step of winding each slit continuous sheet coaxially to form a plurality of secondary rolls having a product width of the tissue paper product or a multiple of the width of the tissue paper product.
- a number of secondary rolls for tissue paper products manufactured so as to have a product width of tissue paper products or multiple times the width of tissue paper products in the slit process in the manufacturing method according to the present invention are set in a multi-stand type interfolder at this latter stage.
- the secondary continuous sheet is fed out from the secondary raw roll set in the multi-stand type interfolder, sent to the folding mechanism, stacked while being folded, and then cut into a predetermined length and the tissue paper Make a bundle and store it in a storage box.
- medical solution is apply
- the chemical solution coating step is preferably performed after the laminating step and before the slitting step. Because, if the chemical solution application step is before the lamination step, equipment for applying the chemical solution to each primary continuous sheet must be provided, while if after the slit step, the slit step In this case, the chemical solution is applied to the laminated continuous sheet divided into a plurality of layers, so that the chemical solution leaks from the slit, causing roll contamination and paper breakage. When the chemical solution application process is performed between the lamination process and the slit process, it is sufficient to prepare equipment for applying the chemical solution only to the laminated continuous sheet that is not divided by the slit process. There is little, and there is little paper break and operation is stable.
- the manufacturing method of the secondary raw material roll for tissue paper products concerning this invention it is preferable to have a smoothing process of smoothing with a calendar.
- a smoothing step it is possible to produce a secondary paper roll for tissue paper products with a smooth surface, and to prevent ply peeling of tissue paper products produced using this secondary paper roll. Can do.
- a smoothing process is performed between a lamination process and a contact embossing process. If the smoothing step is before the laminating step, the effect of preventing ply peeling of the tissue paper product cannot be obtained.
- the chemical coating method may be any known coating method such as dipping, spray coating, flexographic printing, and gravure printing.
- the chemical solution is preferably applied by a gravure printing method or a flexographic printing method.
- the gravure printing method and flexographic printing method can stabilize the coating amount even if the processing speed is high.
- the flexographic printing method has an advantage that a wide range of chemical viscosity can be stably applied with one roll.
- FIG. 14 It is a schematic diagram for demonstrating the derivation
- FIG. It is a figure which shows the state which substituted the chemical
- FIG. 1 An example of the manufacturing method of a primary fabric roll is demonstrated referring FIG.
- the wet paper W that has passed through the wire part is placed on the bottom felt 111 and transferred, and thereafter, sandwiched between the top felt 110 and the bottom felt 111, between the top roll 112 and the bottom roll 113. Passed and squeezed. Thereafter, the wet paper web W squeezed is attached to the surface of the Yankee dryer 115 via the touch roll 116 while being placed on the top felt 110.
- the wet paper W is dried by the Yankee dryer 115, peeled off by the doctor blade 117, and then wound up to be a primary raw roll JR.
- a primary raw roll JR for example, dispersants, dry paper strength enhancers, wet paper strength enhancers, softeners, release agents, adhesives, pH adjusters such as caustic soda, antifoaming agents, preservatives, slime control agents, dyes , Etc. can be added as appropriate chemicals.
- the smoothing process can be performed by the calendar means 118 after being peeled off by the doctor blade 117.
- the production facility X3 (ply machine X3) for the secondary paper roll for tissue paper products according to the present invention includes at least two primary web rolls JR manufactured by the above-described manufacturing method or the like.
- the ply means 51 which can be set as described above, is formed by laminating the primary continuous sheets (S11, S12 in the illustrated example) fed from these primary raw rolls JR along the continuous direction to form a laminated continuous sheet S2.
- a contact embossing means 54 for providing contact embossing to the laminated continuous sheet S2 flowing from the ply means 51 is provided.
- Means 53 are provided.
- the chemical solution applying means 53 is followed by a plurality of cutters arranged in parallel, and the laminated continuous sheet S2 transferred from the chemical solution applying means 53 has a product width of tissue paper products or a multiple of the width.
- the slit means 55 for slitting is arranged in the manner described above, and the laminated continuous sheet S2 slit by the slit means 55 is coaxially wound around the slit means 55 and the product width of the tissue paper product or a multiple of the width of the tissue paper product.
- Winding means 56 for forming a plurality of secondary web rolls R is provided.
- the winding means 56 has two winding drums 56A for guiding each slit continuous sheet S2 to the secondary raw roll R, and these two winding drums 56A are secondary.
- the laminated continuous sheet S2 is guided in contact with the outer peripheral surface of the raw roll R.
- One or more calender means 52 for calendering the laminated continuous sheet S2 may be provided in the production facility X3 for the secondary paper roll for tissue paper products.
- the type of calendar in the calendar means 52 is not particularly limited, but is preferably a soft calendar or a chilled calendar for the purpose of improving the smoothness of the surface and adjusting the paper thickness.
- a soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber, and a chilled calendar is a calendar made of a metal roll.
- the number of calendar means 52 can be changed as appropriate. If there is a plurality of installations, it has the advantage that it can be sufficiently smoothed even if the processing speed is high.
- one installation has the advantage that it can be installed even if the space is small.
- two or more calendar means 52 are installed, they can be arranged side by side in the horizontal direction, the up-down direction, or the diagonal direction, and these installation directions may be combined.
- the holding angle becomes smaller, so the processing speed can be increased, and when arranged side by side in the vertical direction, the installation space can be reduced.
- the holding angle means an angle while the sheet is in contact as viewed from the roll axis center (a part of a circular arc of a cross section perpendicular to the axis) (hereinafter the same).
- Paper making is also performed as control factors such as calendar type, nip line pressure, and number of nips in the calendar processing conditions, and these control factors are preferably changed as appropriate depending on the quality of tissue paper to be obtained, that is, paper thickness and surface properties.
- the installation position of the calendar means 52 is not particularly limited, but it may be provided after the ply means 51 and before the contact embossing means 54 or after the chemical solution applying means 53 and before the slit means 55. it can.
- the total chemical application amount on both sides is 1.5-5. It is a .0g / m 2, and preferably is a 2.0 ⁇ 4.5g / m 2, more preferably between 2.5 ⁇ 4.0g / m 2. If it exceeds 5.0 g / m 2 , the paper may be cut due to a decrease in paper strength or elongation, winding may occur when winding with a winding drum, or the quality may be too sticky. .
- the application surface of the chemical solution is directed to the surface located on the inner side of the secondary raw roll R in the laminated continuous sheet S2 (the surface on the primary continuous sheet S11 side).
- Application is good. In this way, there is a difference between the front and the back of the product, but it is less likely to cause winding slip.
- the coating amount is 1.5 to 5.0 g / m 2 , preferably 2.0 to 4.5 g / m 2 , more preferably 2.5 to 4.0 g / m 2. .
- the chemical solution applying means 53B for directly applying the chemical solution to the primary continuous sheet S11 is more than the other chemical solution applying means 53A.
- the chemical solution shall be applied.
- the ratio of the chemical application amount on both sides is 100: 0 to 60:40, preferably 75:25 to 60:40.
- FIG. 20A is a cross-sectional view of the laminated continuous sheet S2 laminated on the two plies before the chemical solution application (cross-sectional view cut in parallel with the MD direction).
- a difference is provided in the amount of the chemical solution on both surfaces, and a large amount of the chemical solution is applied to the primary continuous sheet S11 side in the drawing.
- the laminated layers are integrated by contact embossing CE, and cut into the product width by the slit means 55 (FIG. 20B).
- the laminated continuous sheet S2 is taken up by the take-up means 56 and is left to stand for infiltration of the chemical solution.
- the primary continuous sheets S11 and S12 constituting the laminated continuous sheet S2 coated with the chemical solution by the chemical solution application unit 53 mainly extend in the MD direction.
- the primary continuous sheet S11 to which more chemical solution is applied has a higher elongation rate than the other primary continuous sheet S12, but the primary continuous sheets S11 and S12 are fixed to each other by contact embossing CE. Wrinkles occur on the surface of the extended primary continuous sheet S11 (FIG. 20C).
- a difference is also provided in the crepe rate of the laminated continuous sheet S2 to be laminated, and if a base paper having a high crepe rate is used for the primary continuous sheet S11, a difference may be caused in the elongation rate between the primary continuous sheet S11 and the primary continuous sheet S12. it can.
- the crepe is formed by the difference between the dryer speed and the winding speed after the base paper is dried by the Yankee dryer 115 and peeled off from the Yankee dryer 115 by the doctor blade 117.
- the shape of this crepe is adjusted by sticking the paper to the Yankee dryer 115, but since there is some variation in this sticking and the fiber raw material is not evenly distributed, There is some variation in the three-dimensional crepe shape. This variation becomes more prominent as the crepe rate increases.
- the product tissue paper has a different bulk feeling unless the chemical solution is applied (FIG. 21 ( A)).
- the primary continuous sheet S11 extends at a higher elongation rate than the primary continuous sheet S12. Since it is fixed in parallel with the MD direction (not shown), the primary continuous sheet S11 corrugates and the bulk of the laminated sheet increases. (FIG. 21 (B)).
- the type of the chemical solution applying unit 53 is not particularly limited, but a printing method such as a gravure printing method or a flexographic printing method can be used.
- the processing speed is 100 to 1000 m / min, preferably 350 to 950 m / min, particularly preferably. Is 450 to 950 m / min.
- productivity is low, and when it is more than 1000 m / min, coating unevenness occurs and the chemical solution is likely to be scattered.
- the number of gravure rolls is 40 to 160 lines, preferably 60 to 140 lines, particularly preferably 80 to 120 lines. If the number of lines is less than 40 lines, the amount of chemical solution scattered increases, whereas if the number of lines exceeds 160 lines, paper dust tends to be clogged.
- the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, particularly preferably. Is 450 to 1000 m / min. If it is less than 100 m / min, the productivity is low, and if it is 1100 m / min or more, uneven coating occurs and the amount of chemical solution scattered increases.
- the number of flexographic printing plate rolls is 10 to 60, preferably 15 to 40, and more preferably 20 to 35. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 60 lines, the paper dust tends to clog.
- the number of anilox rolls is 10 to 300, preferably 25 to 200, and more preferably 50 to 100. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 300 lines, the paper dust tends to be clogged.
- the anilox roll has a cell capacity of 10 to 100 cc, preferably 15 to 70 cc, particularly preferably 30 to 60 cc. If the cell capacity is less than 10 cc, a desired coating amount cannot be obtained. On the other hand, if the cell capacity is more than 100 cc, the amount of chemical solution scattered increases.
- the flexographic printing method can stabilize the coating amount even when the processing speed is high, and can stably apply a wide range of chemical viscosity with a single roll.
- a direct gravure coater or an offset gravure coater can be used, and when using the flexo printing method, a doctor chamber type (hereinafter simply referred to as a doctor chamber type) or 1 or A two-roll transfer type can be used.
- One or a plurality of chemical solution applying means 53 using a printing method such as a gravure printing method or a flexographic printing method can be installed.
- a plurality of chemical solution applying means 53 When a plurality of chemical solution applying means 53 are installed, they may be arranged in parallel in the horizontal direction, the vertical direction, or the oblique direction. Alternatively, these installation directions including the horizontal direction may be combined. Since the holding angle can be reduced by arranging them in the horizontal direction, the processing speed can be increased, and when they are arranged in the vertical direction, the installation space in the horizontal direction can be reduced.
- the means (contact embossing means 54 and slit means 55 in the example of FIG. 11) arranged before and after the chemical solution applying means 53 are preferably arranged close to each other. By doing so, when manufacturing a tissue paper product to which no chemical solution is applied, the laminated continuous sheet S2 is directly transferred from the preceding stage to the subsequent stage of the chemical solution applying unit 53, and the laminated continuous sheet S2 is not passed through the chemical solution applying unit 53. Since it only needs to pass through, it is possible to easily switch the presence or absence of chemical application. For example, in the manufacturing equipment X3 for the secondary paper roll for tissue paper products shown in FIG. 11, when manufacturing the tissue paper products to which the chemical solution is not applied, as shown by a two-dot chain line in FIG. It is only necessary to transfer directly from the means 52 to the contact embossing means 54 and flow the laminated continuous sheet S2 without passing through the chemical solution applying means 53.
- the chemical solution application unit 53A in the form of one of the doctor chambers has a doctor chamber 61A in which a chemical solution is placed facing a rotatable anilox roll 63A, and the anilox from the doctor chamber 61A.
- the chemical solution is delivered to the roll 63A.
- a printing plate roll 64A that is in contact with the anilox roll 63A and is also in contact with one surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63A to the printing plate roll 64A.
- the chemical solution is applied from the printing plate roll 64A to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65A facing the printing plate roll 64A across the laminated continuous sheet S2. It has become.
- medical solution application part 53A is located in the surface side of lamination
- a supply pump (not shown) for applying a chemical solution to the doctor chamber 61A and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61A are installed in the doctor chamber 61A.
- the chemical solution application section 53B in the form of the other doctor chamber has a doctor chamber 61B in which a chemical solution is placed facing the rotatable anilox roll 63B.
- the chemical solution is delivered to the anilox roll 63B.
- a printing plate roll 64B that is in contact with the anilox roll 63B and is also in contact with the other surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63B to the printing plate roll 64B.
- the chemical solution is applied from the printing plate roll 64B to the laminated continuous sheet S2 while applying pressure to the laminated continuous sheet S2 with the elastic roll 65B facing the printing plate roll 64B across the laminated continuous sheet S2. It has become.
- medical solution application part 53B is located in the other surface side of the lamination
- a supply pump (not shown) for applying a chemical solution to the doctor chamber 61B and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61B are also installed in the doctor chamber 61B. .
- the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
- the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical applying unit 53B.
- the total coating amount on both sides is 1.5 to 5 g / m 2
- the coating amount on the outer peripheral surface of the secondary raw roll R that is a ply raw roll is set to be the secondary raw fabric.
- the coating amount on the outer peripheral surface of the secondary raw roll R out of the total coating amount of the lotion agent on both sides of the paper is 50% when it is 20% or more of the whole.
- the specific value varies within the above range because the optimum conditions differ depending on the balance between the slip and quality of the secondary raw roll R, the sheet thickness, the permeability of the lotion agent, and the transferability.
- the flexographic printing method allows the plate to be made of resin and is elastic, so that even if there are some irregularities on the sanitary thin paper, it can be adjusted by the printing pressure. Wrinkles are difficult to enter.
- the coating amount can be stabilized even when the processing speed is high, and a wide range of chemical viscosity can be stably applied with one roll.
- the application is also performed when the lotion agent to be used as a chemical solution is applied at a coating amount within the range described below while the laminated continuous sheet S2 is set to 700 m / min or more, preferably at a speed of 900 m / min or more. Is uniform and the laminated continuous sheet S2 can be wound without meandering.
- the following can be considered as the requirements of the chemical
- a filter device for paper powder and air contained in the chemical solution circulating in the application device such as a chemical solution tank.
- the chemical solution applying means 53 paper dust and the like are reduced, and it is also conceivable that the load on the filtration device is reduced.
- a heater can be installed in the intermediate tank and piping connected to the doctor chambers 61A and 61B.
- the chemical solution supply apparatus 100 is extruded from the storage tank 110 that stores the chemical solution L, the extrusion unit 120 that extrudes the chemical solution L in the storage tank 110, and the extrusion unit 120.
- the doctor chamber 130 for storing the chemical liquid L, the drawing portion 140 for drawing a part of the chemical liquid L stored in the doctor chamber 130 into the tank 110, and the chemical liquid L supplied from the doctor chamber 130 are transferred to the surface of the laminated continuous sheet S2.
- the chemical transfer unit 150 is configured to include a rotating unit 160 that wraps and rotates the laminated continuous sheet S2 around the circumferential surface, and the like. Therefore, the above-described doctor chambers 61A and 61B are the doctor chamber 130 in the present embodiment, and the above-described elastic rolls 65A and 65B are the rotating unit 160 in the present embodiment.
- the storage tank 110 is a tank that stores the chemical liquid L therein, and an extrusion hose 121 of the extrusion unit 120 described later and a drawing hose 141 of the drawing unit 140 are inserted into the liquid layer.
- the extruding unit 120 includes, for example, an extrusion hose 121 inserted into the storage tank 110, a supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies the chemical liquid L to the doctor chamber 130, and the chemical liquid L generated by the supply pump 122. And an adjustment valve 123 for adjusting the extrusion amount (flow rate).
- the extrusion hose 121 is a hose having one end inserted into the storage tank 110 and the other end connected to the introduction part 132 of the doctor chamber 130, and functions as a flow path for transporting the chemical liquid L in the storage tank 110.
- the supply pump 122 is attached to the extrusion hose 121 and is driven by a drive motor (not shown) to pressurize and feed the chemical L in the storage tank 110 to the doctor chamber 130.
- the adjustment valve 123 adjusts the flow rate of the chemical liquid L pushed out by the supply pump 122 by opening and closing the valve.
- the pull-in unit 140 includes a pull-in hose 141 inserted into the storage tank 110 and a suction pump 142 that pulls the chemical L into the storage tank 110.
- the draw-in hose 141 is a hose having one end inserted into the storage tank 110 and the other end connected to a lead-out part 133 of a doctor chamber 130 described later, and transports the chemical L derived from the lead-out part 133 to the storage tank 110. Functions as a flow path.
- the suction pump 142 is attached to the drawing hose 141 and is driven by a drive motor (not shown) to suck the chemical liquid L led out from the lead-out unit 133 and discharge it to the storage tank 110 (outside).
- the supply pump that applies the chemical liquid to the doctor chambers 61A and 61B described above is the supply pump 122 that extrudes the chemical liquid L stored in the storage tank 110 and supplies it to the doctor chamber 130 in this embodiment.
- the discharge supply pump for returning the chemical solution from the doctor chambers 61A and 61B is the suction pump 142 that draws the chemical solution L into the storage tank 110.
- the doctor chamber 130 is disposed adjacent to an anilox roll 151 to be described later, and includes a main body part 131 that stores the chemical L, an introduction part 132 that connects the extruding part 120 and the main body part 131, a retracting part 140, and a main body part 131. And a derivation unit 133 that connects the two.
- the main body portion 131 is a main body portion of the doctor chamber 130 and includes a storage portion 131a and blades 131b and 131c.
- the storage part 131 a is open at the end on the anilox roll 151 side, is connected to the introduction part 132 and the lead-out part 133, and supplies the chemical solution L stored inside to the anilox roll 151.
- a part of the chemical liquid L introduced into the storage part 131a from the introduction part 132 is led out through the lead-out part 133 so that the supply amount to the anilox roll 151 is constant.
- the above-described anilox rolls 63A and 63B are anilox rolls 151 in the present embodiment.
- the blades 131b and 131c are provided so as to come into contact with the anilox roll 151, and perform the throttling of the chemical liquid L in a state of being pressed against the anilox roll 151.
- the introduction part 132 is a tubular joint that has one end connected to the main body part 131 and the other end connected to the extrusion hose 121 of the extrusion part 120, and connects the extrusion part 120 and the main body part 131.
- the chemical liquid L thus made can be introduced into the storage part 131 a of the main body part 131.
- the lead-out part 133 is configured to include a joint 133a, a hole 133b, and a tube 133c.
- the joint 133 a is a tubular joint that has one end connected to the main body portion 131 and the other end connected to the drawing hose 141 of the drawing portion 140 to connect the drawing portion 140 and the main body portion 131.
- the hole 133b is an opening formed on the upper surface of the joint 133a and having a predetermined diameter. That is, since the hole 133b is provided in the joint 133a, the chemical liquid L in the joint 133a comes into contact with the outside air. Therefore, even when the chemical liquid L is circulated by discharging a part of the chemical liquid L introduced from the introduction part 132 (derived from the outlet part 133) and circulating the chemical liquid L, the hole 133b causes the suction of the chemical liquid L. Since the chemical liquid L comes into contact with the outside air and the internal pressure can be brought close to the external pressure, fluctuations in the internal pressure in the doctor chamber 130 can be suppressed.
- the hole 133b may be formed on the upper surface of the main body 131 so as to communicate with the storage portion 131a, for example, as long as the internal pressure fluctuation in the doctor chamber 130 is suppressed.
- the tube 133c is a transparent or translucent tube-like member having a lower end connected to the hole 133b and extending upward. Therefore, when discharging a part of the chemical liquid L introduced from the introduction part 132 and circulating the chemical liquid L, it is visually confirmed whether the chemical liquid L flows into the tube 133c through the hole 133b. Can do. That is, when the inflow into the tube 133c is confirmed, the amount of the chemical liquid L stored in the storage portion 131a is excessive (the chemical liquid L is in an oversupply state with respect to the anilox roll 151). ) Therefore, the user who has visually confirmed the excessive state can solve the excessive state by, for example, adjusting the extrusion amount (flow rate) of the chemical liquid L by operating the adjustment valve 123. . Since the tube 133c is hollow and the upper end side is in contact with the outside air, the operation of the hole 133b is not offset.
- the chemical transfer unit 150 includes, for example, an anilox roll 151 to which the chemical solution L is supplied from the doctor chamber 130, and a printing plate roll 152 provided between the anilox roll 151 and a rotation unit 160 described later.
- the anilox roll 151 is provided so as to come into contact with the blades 131b and 131c of the doctor chamber 130, and is configured such that the chemical liquid L supplied from the opening of the storage portion 131a of the doctor chamber 130 is adsorbed on the peripheral surface. Further, since the anilox roll 151 has a cylindrical shape and is configured to be rotatable about an axis orthogonal to the XY plane, the chemical liquid L adsorbed on the peripheral surface as described above is rotated by the printing plate roll. 152 can be transferred.
- the printing plate roll 152 has a cylindrical shape whose peripheral surface is made of a rubber material, and the peripheral surfaces (points P1 and P2 shown in FIG. 14) are wound around the anilox roll 151 and the rotation unit 160 (the periphery of the left and right ends).
- the continuous sheet S2) is provided so as to contact the peripheral surface of the continuous sheet S2), and is configured to be rotatable around an axis orthogonal to the XY plane. Therefore, the plate roll 152 rotates in the r2 direction when the rotating portion 160 that contacts the left end rotates in the r1 direction, and rotates the anilox roll 151 that contacts the right end in the r1 direction.
- the printing plate roll 152 can acquire the chemical liquid L adsorbed on the peripheral surface of the anilox roll 151 at the point P2, transport it to the point P1 by rotation in the r2 direction, and transfer it to the laminated continuous sheet S2. it can. Therefore, even if the chemical liquid L adsorbed by the anilox roll 151 remains in a layered manner on the peripheral surface of the anilox roll 151, the chemical liquid L is transferred to the peripheral surface of the printing plate roll 152, so that the chemical liquid is applied to the laminated continuous sheet S2. L can be transferred uniformly.
- the rotation unit 160 is provided adjacent to the printing plate roll 152, and rotates around an axis orthogonal to the XY plane (for example, r1 direction in FIG. 14) when a driving force is applied from a motor (not shown) or the like. It is a cylindrical member that is configured to be capable of gripping the laminated continuous sheet S2 on the peripheral surface. Therefore, the rotating unit 160 rotates in the r1 direction so as to wind the supplied laminated continuous sheet S2 around the peripheral surface and rotate the printing plate roll 152 and the anilox roll 151 to convey them to the point P1 position. At the time, the chemical liquid L can be transferred from the printing plate roll 152.
- the rotation direction of the rotation unit 160 is the r1 direction in FIG.
- the rotation unit 160 may of course be configured to rotate in the r2 direction.
- the anilox roll 151 and the printing plate roll 152 rotate in the directions opposite to those in FIG. 14 (that is, the anilox roll 151: r2 direction, the printing plate roll 152: r1 direction).
- the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
- the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
- the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 through the outlet part 133.
- the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
- the storage tank 110 that stores the chemical liquid L, and the extrusion liquid 121 stored in the main body 131 of the doctor chamber 130 are used to store the chemical liquid L stored in the storage tank 110.
- a suction pump 142 that sucks the chemical liquid L stored in the main body 131 of the doctor chamber 130 and discharges it to the storage tank 110 (external) via the pull-in hose 141.
- the chamber 130 connects the extrusion hose 121 and the main body 131, connects the introduction portion 132 for introducing the chemical L supplied by the supply pump 122 into the main body 131, and connects the drawing hose 141 and the main body 131.
- a tubular joint 133a for leading out a part of the chemical liquid L introduced into the main body 131 is provided.
- a detecting section 133 has a configured to include a hole 133b on the upper surface of the joint 133a of the outlet portion 133.
- the hole 133b is provided on the upper surface of the joint 133a of the outlet portion 133. Therefore, when a part of the chemical liquid L in the main body 131 is discharged using the suction pump 142, the chemical liquid L comes into contact with the outside air through the hole 133 b, and therefore, the inside of the doctor chamber 130 caused by the operation of the suction pump 142. Internal pressure fluctuation can be suppressed. Further, in the present invention, since the suction pump 142 is used when part of the chemical liquid L is discharged, there is no need for a flow path for the natural dropping of the chemical liquid L, and the installation position of the tank 110 is also a special doctor chamber 130. It is not limited to the upper part or the like.
- the chemical solution supply device 100 is a chemical solution supply device 100 that can suppress the internal pressure fluctuation in the doctor chamber 130 when sucking out the chemical solution L from the doctor chamber 130 and can be installed in a space-saving as much as possible.
- the doctor chamber 130 includes a transparent or translucent tube 133c having a lower end connected to the hole 133b and extending upward.
- the user who has visually confirmed the excessive state can solve the excessive state by, for example, operating the adjustment valve 123 to adjust the flow rate of the chemical liquid L. Further, by providing the tube 133c with the upper end (free end) facing downward, it is possible to prevent foreign matters such as paper dust from entering the hole 133b.
- the chemical solution supply apparatus 200 of the third embodiment in the doctor chamber format will be described with reference to FIG.
- the chemical solution L is oversupplied to the anilox roll 151 by visually confirming the inflow of the chemical solution L into the tube 133c connected to the hole 133b.
- the chemical solution supply apparatus 200 according to the present embodiment is configured to automatically determine whether or not the state has been reached and to notify the user of the determination result.
- differences from the doctor solution type embodiment 100 of the chemical solution supply apparatus 100 will be mainly described, and the same components are denoted by the same reference numerals and description thereof will be omitted. .
- the lead-out part 233 of the present embodiment includes a joint 133a, a hole 133b, a cylindrical part 133d provided above the hole 133b, and a sensor part attached to the cylindrical part 133d. 133e.
- the cylindrical part 133d is a cylindrical member whose upper end is fixedly connected to the peripheral surface of the hole 133b by welding or the like and extends upward.
- the sensor unit 133e includes a sensor 133f provided in the cylindrical portion 133d, and a notification unit 133g attached to the sensor 133f and performing notification in conjunction with detection of the sensor 133f.
- the sensor 133f includes, for example, a light emitting element (not shown) that emits light toward the detected object, and a light receiving element (not shown) that receives the reflected light from the detected object, and reflects the reflected light from the light receiving element. Based on the amount of received light, the sensor detects whether the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position (y1 shown in FIG. 16) where the sensor 133f is provided.
- the notification unit 133g is a speaker or the like, and when the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, The user is notified by voice.
- the sensor 133f determines whether or not the chemical liquid L flowing into the cylindrical part 133d has reached the height position. By detecting, it is possible to determine whether or not the amount of the chemical liquid L stored in the storage unit 131a is excessive (the chemical liquid L is in an excessive supply state with respect to the anilox roll 151). And, when the excessive state is reached, the user can know the fact by the notification unit 133g, for example, by operating the adjustment valve 123 to adjust the extrusion amount (flow rate) of the chemical liquid L, It becomes possible to eliminate the excessive state. Since the cylindrical portion 133d is hollow and the upper end side is in contact with the outside air, the action of the hole 133b is not offset.
- the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
- the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
- the suction pump 142 is driven, and a part of the chemical liquid L in the storage part 131 a is discharged and circulated toward the storage tank 110 via the outlet part 233.
- the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification portion 133g notifies the user.
- the adjustment valve 123 is operated to adjust the flow rate of the chemical liquid L.
- the doctor chamber 130 has a cylindrical cylindrical portion 133d that has a lower end connected to the peripheral surface of the hole 133b and extends upward, and a cylindrical shape.
- a sensor 133f that detects whether the height of the chemical liquid L that is provided in the portion 133d and flows into the cylindrical portion 133d has reached a predetermined height position (a height position where the sensor 133f is provided), and a sensor 133f
- a notification unit 133g is configured to notify when it is detected that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the predetermined height position.
- the chemical solution supply device 200 the same effect as the chemical solution supply device 100 is exhibited, and when the chemical solution L is circulated, the chemical solution L is applied to the anilox roll 151 by the sensor 133f and the notification unit 133g. It is possible to automatically determine whether or not the battery has reached an oversupply state, and to notify the user of the determination result, so that the burden on the user himself to perform the state determination is reduced.
- the chemical solution supply apparatus 300 according to the fourth embodiment in the doctor chamber format will be described with reference to FIG.
- the opening amount of the hole 133b is configured to be a fixed value, but in the chemical solution supply device 300 of the present embodiment, The opening amount can be adjusted.
- differences from the chemical solution supply apparatus 100 of the doctor chamber type embodiment 2 and the chemical solution supply apparatus 200 of the embodiment 3 will be mainly described. Reference numerals are assigned and description is omitted.
- the lead-out part 333 of the present embodiment includes a joint 133a, a cylindrical part 133d, a sensor part 133e, and an adjustment part 133h attached to the cylindrical part 133d.
- the adjusting unit 133h is, for example, a needle valve, and includes a hole 133j as an opening formed on the upper surface of the joint 133a, and a valve main body 133i that adjusts the opening amount of the hole 133j.
- the hole 133j has a shape in which an opening having a predetermined diameter is surrounded by an orifice.
- the valve body 133i is disposed above the opening of the hole 133j, and includes a needle shaft (not shown) whose tip is tapered and can be moved up and down.
- the needle shaft is moved up and down to change the orifice of the hole 133j. It is comprised so that the opening amount of the hole 133j can be adjusted according to the opening degree at the time of contacting.
- the opening amount of the hole 133j can be adjusted by the adjusting unit 133h, when the chemical liquid L is circulated, the opening amount of the hole 133j is changed according to the amount of fluctuation of the internal pressure in the doctor chamber 131. Can be adjusted appropriately. Therefore, for example, when the sensor part 133e detects that the height of the chemical liquid L flowing into the cylindrical part 133d has reached the height position where the sensor 133f is provided, the adjustment liquid 123 is operated to operate the chemical liquid L. In addition to coping with adjusting the amount of extrusion, the adjustment of the opening amount of the hole portion 133j by the adjusting portion 133h increases the air bleeding ability by the hole portion 133j (expands the contact area with the outside air).
- the supply pump 122 is driven, the chemical liquid L is extruded from the storage tank 110, and supplied to the storage part 131 a of the main body part 131 through the extrusion hose 121 and the introduction part 132 of the doctor chamber 130.
- the rotation unit 160 is rotated to supply the chemical solution L in the storage unit 131a to the anilox roll 151, and the chemical solution L is transferred onto the laminated continuous sheet S2 via the printing plate roll 152.
- the suction pump 142 is driven, and a part of the chemical L in the storage part 131a is discharged toward the storage tank 110 through the lead-out part 333 and circulated.
- the sensor 133f detects that the height of the chemical liquid L flowing into the cylindrical portion 133d has reached the height position where the sensor 133f is provided, and the notification unit 133g notifies the user. In such a case, it can be dealt with by operating the adjusting valve 123 or adjusting the opening amount of the hole 133j by the adjusting portion 133h.
- the doctor chamber 130 includes the adjustment unit 133h that adjusts the opening amount of the hole 133j.
- the opening amount of the hole 133j can be adjusted by the adjusting unit 133h.
- the internal pressure fluctuation in the doctor chamber 130 can be more suitably suppressed by appropriately adjusting the opening amount of the hole 133j in accordance with the internal pressure fluctuation amount in the doctor chamber 131.
- the doctor chamber 130 has a structure including only one introduction portion 132 connected to the extrusion hose 121 and one introduction portion 132 connected to the extrusion hose 121.
- FIG. It is good also as a structure like each example shown in.
- the doctor chamber 130 in the width direction D near the left and right ends of the doctor chamber 130 formed with a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in each location. And it is also set as the structure where the one lead-out part 133 connected with the drawing hose 141 exists in the center part of this doctor chamber 130.
- FIG. 18A the doctor chamber 130 in the width direction D near the left and right ends of the doctor chamber 130 formed with a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in each location. And it is also set as the structure where the one lead-out part 133 connected with the drawing hose 141 exists in the center part of this doctor chamber 130.
- the two extrusion hoses 121 are connected to the two introduction portions 132, respectively, and the chemical solution L is supplied from the vicinity of the left and right ends of the doctor chamber 130.
- the fresh chemical solution L can be supplied into the doctor chamber 130 on average, and the remaining chemical solution L is led out from the doctor chamber 130 from the central outlet unit 133.
- the doctor chamber 130 is formed in a wide rectangular shape and is formed in a wide rectangular shape along the anilox roll 151 that rotates about the rotation axis R0. It is set as the structure which has the introduction part 132 connected to the extrusion hose 121 in the location and the location of a center part, respectively. And it is also set as the structure where the two derivation
- two lead-out parts 133 are arranged between the three introduction parts 132, respectively, and the three extrusion hoses 121 each have three introduction parts 132.
- the doctor chamber 130 has an equal interval along the width direction D in which the outer frame is formed in a wide rectangular shape along the anilox roll 151 that is formed wide and rotates around the rotation axis R0. And it is set as the structure which has the introducing
- the chemical liquid L is supplied from the extrusion hose 121 to the plurality of introduction portions 132 arranged along the width direction D of the doctor chamber 130, and each of the introduction portions 132 is provided.
- the surplus chemical liquid L is led out from the doctor chamber 130 from a plurality of the outlets 133 adjacent to each other. Therefore, also in this example, the fresh chemical liquid L from the storage tank 110 can be supplied into the doctor chamber 130 on average, and the surplus chemical liquid L from the derivation unit 133 is led out from the doctor chamber 130.
- an air filter may be installed on the upper portion of the hole 133b so as to prevent foreign matters such as paper dust from entering the hole 133b.
- the hole 133b may be provided on the side surface of the main body 131 as long as it is above the liquid level of the chemical liquid L in the reservoir 131a.
- an anilox roll 63A is rotatably installed in contact with the squeezing roll 62A outside the chemical tank 66A, and the printing plate roll 64A in contact with the anilox roll 63A and in contact with one surface of the laminated continuous sheet S2 is rotatable.
- the pressure is applied to the laminated continuous sheet S2 by the elastic rolls 65A that are opposed to each other with the laminated continuous sheet S2 interposed therebetween.
- the chemical solution application portion 53A is positioned on the surface side of the laminated continuous sheet S2 that faces a roller 54A of a contact embossing means 54 described later and also faces the winding drum 56A.
- the chemical application unit 53B in the other flexographic printing format is rotatably installed while a squeeze roll 62B as a dip roll is immersed in a chemical tank 66B containing the chemical. ing.
- an anilox roll 63B is rotatably installed in contact with the squeeze roll 62B outside the chemical tank 66B, and a printing plate roll 64B that is in contact with the anilox roll 63B and in contact with the other surface of the laminated continuous sheet S2 is also provided.
- Pressure is applied to the laminated continuous sheet S2 with the elastic roll 65B that is rotatably installed and is opposed to the laminated continuous sheet S2.
- the chemical solution application portion 53B is positioned on the other surface side of the laminated continuous sheet S2 that is not opposed to the roller 54A and is also not opposed to the winding drum 56A.
- the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution application unit 53A and the chemical solution application unit 53B.
- the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution application unit 53A Can be applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical applying unit 53B.
- the total coating amount on both sides is set to 1.5 to 5 g / m 2 as described above, and the coating amount on the outer peripheral surface of the secondary original roll R which is a ply original roll is set to the secondary original roll R
- the coating amount on the outer peripheral surface of the secondary raw roll R is 20% or more and less than 50% of the total coating amount of the lotion agent on both sides of the paper.
- the specific value varies within the above range because the optimum conditions differ depending on the balance between the slip and quality of the secondary raw roll R, the sheet thickness, the permeability of the lotion agent, and the transferability.
- the plate since the plate is made of resin using the flexo type and is elastic, it can be adjusted by the printing pressure even if there are some irregularities in the laminated continuous sheet S2, so that it is like gravure printing. Wrinkles are less likely to enter the laminated continuous sheet S2 than when applied with a simple metal roll.
- the coating amount can be stabilized even at high processing speeds, and a wide range of chemical viscosity can be stably applied with a single roll. become able to.
- the continuous lotion sheet S2 is conveyed at a speed of 700 m / min or more and the lotion agent used as a chemical solution is applied at an application amount of 1.5 g to 5 g / m 2 , the application is uniform.
- the laminated continuous sheet S2 can be wound without meandering.
- the following requirements can be considered as the requirements of the accompanying chemical solution applying means 53.
- a paper dust or air filtration device contained in the chemical solution circulating in the coating device such as the chemical solution tanks 66A and 66B
- a doctor blade (not shown) may be provided for the anilox rolls 63A and 63B.
- the chemical solution is scattered from the anilox rolls 63A and 63B.
- the doctor blade has to be maintained or replaced.
- the one-roll transfer format in the flexographic printing method is obtained by omitting the squeezing rolls 62A and 62B from the flexo two-roll transfer format described above.
- the anilox rolls 63A and 63B are rotatably installed while being immersed in the chemical liquid tanks 66A and 66B, respectively.
- a doctor blade (not shown) for scraping off the chemical solution on the surfaces of the anilox rolls 63A and 63B may be installed on the anilox rolls 63A and 63B.
- Such a flexo 1-roll transfer format has the advantage that the maintenance is relatively easy, and the advantage that the state of contamination of the blades and foreign matters such as paper dust in the chemical solution can be easily observed.
- the viscosity of the chemical solution to be applied is 1 to 700 mPa ⁇ s at 40 ° C. from the viewpoint of high-speed processing. More preferably, it is 50 to 400 mPa ⁇ s (40 ° C.). If it is less than 1 mPa ⁇ s, the chemical solution is likely to scatter on rolls such as anilox roll, printing plate roll, and gravure roll, and conversely if it is greater than 700 mPa ⁇ s, it is difficult to control the amount of application to each roll or continuous sheet.
- the components are 70 to 90% polyol, 1 to 15% moisture, and 0.01 to 22% functional chemicals.
- Polyols include polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
- Functional agents include softeners, surfactants, inorganic and organic fine particle powders, oily components, and the like. Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied. Inorganic and organic fine particle powders have a smooth surface.
- the oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.
- a functional agent one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc.
- a moisturizing agent such as any combination can be added.
- Deodorants such as flavors, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc.
- An agent can be appropriately blended.
- a polyhydric alcohol such as glycerin or propylene glycol
- the temperature at the time of applying the chemical solution is preferably 30 ° C. to 60 ° C., preferably 35 ° C. to 55 ° C.
- the production facility X3 for the secondary paper roll for tissue paper products can be provided with contact embossing means 54 for imparting contact embossing to the laminated continuous sheet S2.
- a receiving roll 54B which is a metal roll or an elastic roll, and a metal, hard roller 54A having a fine convex portion 54C on the surface have a predetermined pressure.
- the outer peripheral surfaces are in contact with each other, and are installed so as to be rotatable.
- the laminated continuous sheet S2 is conveyed while sandwiching the laminated continuous sheet S2 between the convex portion 54C and the receiving roll 54B.
- line-shaped contact embossing CE for preventing delamination along the continuous direction of the laminated continuous sheet S2 is applied to the laminated continuous sheet S2.
- the winding means 56 mentioned above winds up the lamination
- the contact embossing CE By providing the contact embossing CE in this way, delamination of the laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets (S11, S12 in the illustrated example) is prevented.
- the contact embossing CE is formed so as to be positioned on both sides in the width direction of the tissue paper product so that the end portion of the tissue paper product is hardly delaminated.
- a metal and hard roller 54A having a fine convex portion 54C on the surface is used as a roller, but a line-shaped joint that prevents delamination from the laminated continuous sheet S2.
- a roller having a fine needle-like member on the surface can be used as the roller.
- the means for joining is not limited to the above example, and the tip shape of the convex portion may be a point, square, rectangular, circular, elliptical shape, etc. A tip having a slender linear shape or a thin and slanting linear shape may be used as the roller.
- the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced.
- the protrusions in a row and providing contact embossing continuously, It is also conceivable to arrange the parts in two or more rows. Then, a plurality of groups in which convex portions are arranged so as to provide a plurality of rows of contact embossing closely may be arranged to provide a plurality of contact embossing groups.
- the raw material pulp of primary continuous sheet S11, S12 is not specifically limited, According to the use of tissue paper products, an appropriate raw material pulp can be selected and used. Examples of the raw material pulp include wood pulp, non-wood pulp, synthetic pulp, and waste paper pulp.
- ground pulp GP
- SGP stone grand pulp
- RGP refiner ground pulp
- PGW pressure type Ground pulp
- TMP thermomechanical pulp
- CGP chemithermomechanical pulp
- BCTMP bleached chemithermomechanical pulp
- MP chemical mechanical pulp
- SCP chemical pulp
- KP kraft pulp
- LKP hardwood bleached kraft pulp
- NKP softwood bleached kraft pulp
- SP sulfite pulp
- DP dissolved pulp
- CP nylon, rayon, polyester, polyvinyl alcohol Synthetic pulp made from (PVA) etc., deinked pulp (DIP), waste paper pulp such as waist pulp (WP), waste pulp (TP), cotton, flax, hemp, jute, manila hemp, ramie etc.
- DIP deinked pulp
- WP waist pulp
- TP waste pulp
- cotton flax, hemp, jute, manila hemp, ramie etc.
- One or several types can be appropriately selected and used from rag pulp, straw pulp, esparto pulp, bagasse pulp, bamboo pulp, kenaf pulp, and other auxiliary pulps such as bast pulp.
- the raw material pulp is preferably a blend of NBKP and LBKP.
- the primary continuous sheets S11 and S12 have a basis weight according to JIS P 8124 of 10 to 25 g / m 2 , preferably 12 to 20 g / m 2, and more preferably 13 to 16 g / m 2 .
- the basis weight is less than 10 g / m 2 , it is preferable in terms of softness, but an appropriate strength cannot be ensured.
- the basis weight exceeds 25 g / m 2 , it becomes too hard and the touch is deteriorated.
- the paper thickness (measured with a Peacock manufactured by Ozaki Seisakusho) is 80 to 250 ⁇ m, preferably 100 to 200 ⁇ m, more preferably 130 to 180 ⁇ m per ply.
- the primary continuous sheets S11 and S12 preferably have a crepe rate of 10 to 30%, more preferably 12 to 25%, and particularly preferably 13 to 20%.
- the crepe rate is less than 10%, it becomes a tissue paper product that is easy to break during processing and has little stretch and is not stiff.
- the crepe rate is more than 30%, it is difficult to control the tension of the sheet at the time of processing, and the paper tends to be cut off, and wrinkles occur after production, resulting in a poor-looking tissue paper product.
- the primary continuous sheets S11 and S12 have a dry tensile strength (hereinafter also referred to as dry paper strength) specified in JIS P 8113 of 2 to 200 p-200 cN / 25 mm, preferably 250 to 600 cN / 25 mm.
- the lateral direction is preferably 300 to 600 cN / 25 mm, while the transverse direction is 100 to 300 cN / 25 mm, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm with two plies. If the dry tensile strength of the base paper is too low, troubles such as paper breakage and elongation at the time of production and use are likely to occur, and if it is too high, the touch becomes stiff when used.
- paper strengths can be adjusted by a known method.
- a dry paper strength enhancer is internally added (added to a stage before the dryer part, for example, pulp slurry) to reduce pulp freeness (for example, about 30 to 40 ml).
- a method of increasing (for example, 50% or more) the NBKP compounding ratio can be appropriately combined.
- the dry paper strength agent starch, polyacrylamide, CMC (carboxymethyl cellulose) or a salt thereof such as sodium carboxymethyl cellulose, carboxymethyl cellulose calcium, carboxymethyl cellulose zinc and the like can be used.
- the wet paper strength agent polyamide polyamine epichlorohydrin resin, urea resin, acid colloid / melamine resin, thermal crosslinkability imparting PAM and the like can be used.
- the addition amount can be about 5 to 20 kg / t by weight ratio to the pulp slurry. Further, when the dry paper strength agent is internally added, the addition amount can be about 0.5 to 1.0 kg / t in terms of the weight ratio to the pulp slurry.
- the laminated continuous sheet S2 is laminated to form a laminated continuous sheet S2 (lamination process), and the contact embossing means 54 performs line-shaped contact embossing to prevent delamination or misalignment between the layers (contact embossing process).
- a chemical solution is applied to the laminated continuous sheet S2 by the pair of chemical solution applying means 53 (chemical solution applying step), and the laminated continuous sheet S2 is made the product width of the tissue paper product or a multiple thereof by the slit means 55.
- the laminated continuous sheet S2 slit in the slit process is wound up coaxially.
- a plurality of secondary master roll R of product width or a multiple width of tissue paper products are formed by the winding means 56.
- the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, more preferably 450 to 1000 m. / Min. If it is less than 100 m / min, the productivity is low. On the other hand, if it exceeds 1100 m / min, the frequency of the laminated continuous sheet S2 is increased, and the chemical solution application process does not transfer the chemical solution of the plate roll or anilox roll. Since it tends to be stable, uneven coating may occur.
- Multi-stand type inter folder A large number of secondary raw rolls R manufactured by the manufacturing equipment and manufacturing method for secondary paper rolls for tissue paper products described above are set in a multi-stand type interfolder, and the secondary raw rolls R are set to the secondary raw rolls R. A tissue paper bundle is manufactured by unfolding and folding the next continuous sheet.
- the multi-stand type interfolder will be described.
- FIG. 2 and 3 show an example of the multi-stand type interfolder.
- Reference numeral 2 in the figure denotes secondary raw rolls R, R... Set on a secondary raw roll support portion (not shown) of the multi-stand type interfolder 1.
- the secondary raw rolls R, R... Are set side by side in a direction (the horizontal direction in FIG. 2 and the front-to-back direction in FIG. 3) perpendicular to the illustrated plane.
- Each secondary raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.
- the continuous belt-like secondary continuous sheets 3A and 3B unwound from the secondary raw roll R are guided to guide means such as guide rollers G1 and G1 and sent to the folding mechanism section 20.
- the folding mechanism part 20 is provided with the folding plate group 21 in which the required number of folding plates P, P ... are arranged in parallel as shown in FIG.
- guide rollers G2, G2 and guide round bar members G3, G3 for guiding a pair of continuous secondary continuous sheets 3A or 3B are respectively provided at appropriate positions.
- a conveyor 22 is provided that receives and conveys the laminated band 30 that is stacked while being folded.
- a folding mechanism using this type of folded plates P, P... is a mechanism known from, for example, US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... In the Z-shape and is adjacent to the adjacent secondary continuous sheet 3A, 3B. Stack the ends together.
- FIGS. 7 to 10 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P.
- a continuous secondary continuous sheet that is overlapped on the lower side when guided by the folded plate P is defined as a first continuous secondary continuous sheet 3A, and a continuous secondary continuous sheet that is overlapped on the upper side is a second continuous sheet.
- these continuous secondary sheets 3A and 3B are second continuous secondary sheets of the first continuous secondary continuous sheet 3A.
- the side end e1 that does not overlap the sheet 3B is folded back to the upper side of the second continuous secondary continuous sheet 3B by the side plate P1 of the folded plate P, and as shown in FIGS.
- the side end e2 of the continuous secondary continuous sheet 3B that does not overlap with the first continuous secondary continuous sheet 3A is folded downward so as to be drawn under the folded plate P from the slit P2 of the folded plate P. .
- the side end portion e3 (e1) of the continuous secondary continuous sheet 3A stacked while being folded in the upstream folded plate P is second from the slit P2 of the folded plate P.
- the folded portions of the continuous secondary sheet 3B are guided between the folded portions of the continuous secondary sheet 3B.
- each continuous secondary continuous sheet 3A, 3B... Is folded into a Z-shape and the side edges of adjacent continuous secondary continuous sheets 3A and 3B are crossed together.
- the side edge of the next tissue paper is pulled out.
- the laminated band 30 obtained by the multi-stand type interfolder 1 as described above is cut (cut) at a predetermined interval in the flow direction FL by the subsequent cutting means 41, and the tissue is cut.
- the tissue paper bundle 30a is stored in the storage box B in the subsequent equipment as shown in FIG. 6A.
- the paper direction of the laminated strip 30 is the vertical direction (MD direction) along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction.
- Direction (CD direction) the direction of the paper of the tissue paper constituting the tissue paper bundle 30a obtained by cutting the laminated band 30 into a predetermined length is the extension of the folded portion of the tissue paper as shown in FIG.
- the vertical direction (MD direction) is along the existing direction
- the horizontal direction (CD direction) is along the direction orthogonal to the extending direction of the folded portion of the tissue paper.
- FIG. 6B shows an example of a product in which the tissue paper bundle 30a is stored in the storage box B.
- a perforation M is provided on the upper surface of the storage box B, and a part of the upper surface of the storage box B is broken by the perforation M so that the upper surface of the storage box B is opened.
- the opening is covered with a film F having a slit at the center, and the tissue paper T can be taken out through the slit provided in the film F.
- the direction of the paper of the tissue paper constituting the tissue paper bundle 30a is the horizontal direction (CD direction) along the direction orthogonal to the extending direction of the folded portion of the tissue paper.
- the pulling direction is along the lateral direction (CD direction) of the tissue paper T.
- the present invention includes the following inventions.
- (Invention A1) A production facility for a secondary web roll for tissue paper products, which continuously produces a plurality of secondary web rolls for tissue paper products from a primary web roll, Laminating means for laminating a primary continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet; Contact embossing means for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; A chemical solution applying means installed after the contact embossing means, for applying a chemical solution to the laminated continuous sheet; Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width, Tissue paper product comprising winding means for winding each slit continuous sheet coaxially to form a product width of the tissue paper product or a plurality of secondary raw rolls of multiple widths thereof. Manufacturing equipment for secondary web rolls.
- invention A2 The facility for producing a secondary raw roll for tissue paper products according to Invention A1, further comprising a smoothing means for smoothing the laminated continuous sheet with a calender before the contact embossing means.
- invention A3 The manufacturing apparatus of the secondary raw material roll for tissue paper products of invention A1 or invention A2 whose said chemical
- coating means is a gravure printing system.
- invention A4 The manufacturing apparatus of the secondary raw material roll for tissue paper products of invention A1 or invention A2 whose said chemical
- coating means is a flexographic printing system.
- invention B1 A lamination step in which a primary continuous sheet fed from a plurality of primary fabric rolls is laminated along the continuous direction to form a laminated continuous sheet; A contact embossing process for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets; After the contact embossing step, a chemical solution applying step for applying a chemical solution to the laminated continuous sheet; A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, Winding step of winding each slit continuous laminated sheet coaxially to form a plurality of secondary raw rolls of the product width of tissue paper products or a multiple of the width, And a step of transporting a plurality of secondary continuous sheets fed from the plurality of secondary raw rolls along the continuous direction and stacking them while being folded.
- invention B2 The method for producing the tissue paper product according to Invention B1, further comprising a smoothing step of smoothing the laminated continuous sheet with a calendar before the contact embossing step.
- Invention B3 The method for producing a tissue paper product according to Invention B1 or Invention B2, wherein the chemical solution is applied by a gravure printing method.
- invention B4 The method for producing a tissue paper product according to Invention B1 or Invention B2, wherein the chemical solution is applied by a flexographic printing method.
- (Invention C1) Laminating means for laminating a primary continuous sheet fed from a plurality of primary raw rolls along the continuous direction to form a laminated continuous sheet;
- Contact embossing means for applying line-shaped contact embossing to prevent delamination and misalignment between laminated continuous sheets;
- a chemical solution applying means installed after the contact embossing means, for applying a chemical solution to the laminated continuous sheet;
- Slitting means for slitting the laminated continuous sheet so as to be a product width of tissue paper products or a multiple of the width, Winding means for winding the slit laminated continuous sheets coaxially to form a plurality of secondary rolls having a product width of tissue paper products or a multiple of the width
- a tissue paper product manufacturing facility comprising: means for transporting a plurality of secondary continuous sheets fed from the plurality of secondary raw rolls along the continuous direction and stacking them while being folded.
- invention C2 The tissue paper production facility according to Invention C1, further comprising a smoothing means for smoothing the laminated continuous sheet with a calender before the contact embossing means.
- invention C3 The tissue paper product manufacturing facility according to invention C1 or invention C2, wherein the chemical solution applying means is a gravure printing method.
- invention C4 The tissue paper product manufacturing facility according to Invention C1 or Invention C2, wherein the chemical solution applying means is a flexographic printing method.
- the present invention can be applied to the production of secondary rolls for tissue paper products used in multi-stand type interfolders.
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Abstract
Description
プライマシンで製造された二次原反ロールは、プライマシンから取り出された後、必要な数だけマルチスタンド式インターフォルダにセットされる。次いで、二次原反ロールから二次連続シートを繰り出して、折畳機構部へ送り込み、ここで折り畳みながら積み重ね、その後、所定の長さに切断されてティシュペーパー束とし、収納箱内に収納する。
このようなマルチスタンド式インターフォルダを用いた製造方法は、他の折り畳み設備を用いた製造方法に比べて、多数(通常80~100基)の折畳み機構を有しているため生産性が高いという利点を有している。
そこで、本発明の主たる課題は、薬液塗布工程を有するティシュペーパー製品用二次原反ロールの製造方法であって、薬液を塗布した積層連続シートの層間で剥離やズレが生じることを防止可能であるティシュペーパー製品用二次原反ロールの製造方法を提供することにある。
〔請求項1記載の発明〕
一次原反ロールから連続的にティシュペーパー製品用の複数の二次原反ロールを製造するティシュペーパー製品用二次原反ロールの製造方法であって、
複数の一次原反ロールから繰り出される一次連続シートをその連続方向に沿って積層して積層連続シートとする積層工程と、
積層連続シートに対して層間の剥離及びズレを防止するライン状のコンタクトエンボスを施すコンタクトエンボス工程と、
前記コンタクトエンボス工程の後に、積層連続シートに対して薬液を塗布する薬液塗布工程と、
積層連続シートをティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットするスリット工程と、
スリットされた各積層連続シートを同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールを形成する巻取り工程と、を有することを特徴とするティシュペーパー製品用二次原反ロールの製造方法。
前記コンタクトエンボス工程の前に、積層連続シートにカレンダーによって平滑化処理する平滑化工程を有する、請求項1に記載のティシュペーパー製品用二次原反ロールの製造方法。
前記薬液の塗布をグラビア印刷方式によって行う、請求項1又は請求項2に記載のティシュペーパー製品用二次原反ロールの製造方法。
前記薬液の塗布をフレキソ印刷方式によって行う、請求項1又は請求項2に記載のティシュペーパー製品用二次原反ロールの製造方法。
本発明では、ティシュペーパー製品用二次原反ロールの製造方法における積層連続シートに対して薬液を塗布するようになっている。このため、プライマシンやマルチスタンド式インターフォルダとは別に薬液塗布工程を設ける場合と比較して、設備コストを低く抑えることができる。また、薬液を塗布しないティシュペーパー製品を製造する場合は、ティシュペーパー製品用二次原反ロールの製造工程から薬液塗布工程を省略するだけで良いため、設備の切り替えが容易にできる。
なお、平滑化工程は、積層工程とコンタクトエンボス工程との間で行われることが好ましい。平滑化工程が積層工程の前であると、ティシュペーパー製品のプライ剥がれを防止する効果を得ることができない。
〔一次原反ロールの製造方法〕
一次原反ロールの製造方法の一例を、図1を参照しつつ説明する。
図1に示すように、ワイヤーパートを経た湿紙Wがボトムフェルト111に載せられて移送され、その後、トップフェルト110及びボトムフェルト111に挟持されたまま、トップロール112とボトムロール113の間を通過し搾水される。その後、搾水された湿紙Wは、トップフェルト110に載せられた状態で、タッチロール116を介してヤンキードライヤー115の表面に付着させられる。そして、湿紙Wは、ヤンキードライヤー115によって乾燥され、ドクターブレード117により引き剥がされた後、巻き取られることで一次原反ロールJRとされる。
この抄紙に際しては、例えば、分散剤、乾燥紙力増強剤、湿潤紙力増強剤、柔軟剤、剥離剤、接着剤、苛性ソーダ等のpH調整剤、消泡剤、防腐剤、スライムコントロール剤、染料、などの適宜の薬品を添加することができる。
なお、本一次原反ロールの製造方法においては、ドクターブレード117により引き剥がされた後でカレンダー手段118によって平滑化処理を施すこともできる。
図11に示すように、本発明に係るティシュペーパー製品用二次原反ロールの製造設備X3(プライマシンX3)は、上述の製造方法などで製造された一次原反ロールJRを、少なくとも2つ以上セット可能とされており、これらの一次原反ロールJRから繰り出した一次連続シート(図示例ではS11、S12)を、その連続方向に沿って積層して積層連続シートS2とするプライ手段51を有している。
ティシュペーパー製品用二次原反ロールの製造設備X3には、積層連続シートS2をカレンダー処理するカレンダー手段52を一つ以上設けることもできる。
カレンダー手段52におけるカレンダーの種別は、特に限定されないが、表面の平滑性向上と紙厚の調整の理由からソフトカレンダー又はチルドカレンダーとすることが好ましい。ソフトカレンダーとは、ウレタンゴム等の弾性材を被覆したロールを用いたカレンダーであり、チルドカレンダーとは金属ロールからなるカレンダーの事である。
カレンダー手段52の数は、適宜変更することができる。複数設置すれば加工速度が速くとも十分に平滑化できるという利点を有する一方、一つであるとスペースが狭くとも設置可能であるという利点を有する。
二つ以上のカレンダー手段52を設置する場合、水平方向、上下方向、或いは斜め方向に並設することができ、また、これらの設置方向を組み合わせて配置しても良い。水平方向に並設すると、抱き角度を小さくなるため加工速度が高速とすることができ、上下方向に並設すると設置スペースを小さくすることができる。なお、ここで言う抱き角度とはロールの軸中心から見てシートが接している間(軸と直行する断面の円弧の一部)の角度を意味している(以下同じ)。
カレンダー処理条件におけるカレンダー種別、ニップ線圧、ニップ数なども制御要因として抄紙を行うようにし、これらの制御要因は、求めるティシュペーパーの品質すなわち紙厚や表面性によって適宜変更することが好ましい。
また、カレンダー手段52の設置位置は特に限定されないが、プライ手段51の後段であって且つコンタクトエンボス手段54の前段や、薬液塗布手段53の後段であって且つスリット手段55の前段とすることができる。
本実施形態に係るティシュペーパー製品用二次原反ロールの製造設備又は製造方法においては、薬液を積層連続シートS2の両面に塗布する場合、両面の合計の薬液塗布量は、1.5~5.0g/m2とされ、好ましくは2.0~4.5g/m2とされ、より好ましくは2.5~4.0g/m2とされる。5.0g/m2超過であると、紙力低下や伸びなどにより断紙したり、ワインディングドラムで巻き取りの際に巻きズレを起こしたり、また品質的にべたつき感が過ぎる場合も出てくる。1.5g/m2未満であると滑らかさやしっとり感など未塗布品との品質差を感じられなくなってしまう。
なお、両塗布面への塗布量に差がある場合、塗布後にプライ原反で保管されてから折り加工されるまでの時間(8時間以上)に、両塗布面は接していることから、次第に両者の薬液量は均等化していき表裏差は小さくなる。
本ティシュペーパー製品用二次原反ロールの製造設備又は製造方法において、薬液塗布手段53としてグラビア印刷方式を用いる場合、加工速度は100~1000m/分とし、好ましくは350~950m/分、特に好ましくは450~950m/分とする。100m/分未満であると生産性が低く、1000m/分超過であると、塗布ムラが生じ、薬液が飛散し易くなる。また、グラビアロールの線数は、40~160線とし、好ましくは60~140線、特に好ましくは80~120線とする。線数が40線未満であると薬液飛散量が多くなってしまい、他方、線数が160線超過であると紙粉が詰まり易くなる。
フレキソ印刷方式は、加工速度が高速であっても塗布量を安定させることができ、また、一つのロールで幅広い薬液の粘度を安定的に塗布することができる。
ここでは、フキレソ印刷方式におけるドクターチャンバー形式の一例を説明する。
図12に示すように一方のドクターチャンバー形式とされる薬液塗布部53Aは、薬液の入っているドクターチャンバー61Aが、回転可能なアニロックスロール63Aと対向して配置されていて、ドクターチャンバー61Aからアニロックスロール63Aに薬液を受け渡すようになっている。また、このアニロックスロール63Aと接し且つ積層連続シートS2の一面とも接する刷版ロール64Aが回転可能に設置されていて、このアニロックスロール63Aから刷版ロール64Aに薬液を受け渡すようになっている。さらに、積層連続シートS2を挟んでこの刷版ロール64Aと対向している弾性ロール65Aとで積層連続シートS2に圧力を付与しつつ、刷版ロール64Aから積層連続シートS2に薬液を塗布するようになっている。
具体的には、片面毎の塗布量を変えるだけでなく、フレキソ版の線数を15~40線程度、頂点面積率を20~40%程度の薬液が飛散しない程度に粗くすることが考えられ、このようにすることで、塗布直後はドット柄が残り、瞬間的に塗布部分と未塗布部分ができるようになる。
2ロールフレキソ形式の薬液塗布手段では、薬液タンク等の塗布装置内で循環する薬液に含まれる紙粉やエアーのろ過装置を設置する必要があるが、本実施の形態のようなドクターチャンバー形式の薬液塗布手段53とした場合、紙粉等が少なくなるので、ろ過装置の負荷が軽減されることも考えられる。さらに、ドクターチャンバー61A、61B等の塗布装置内で薬液の温度をコントロールし、薬液粘度を安定させる必要が考えられるが、ドクターチャンバー61A、61Bに繋がる中間タンク及び配管にヒーターを設置することにできる。他方、操業中に積層連続シートS2の幅方向の水分率で塗布量を管理する必要が考えられるが、例えば赤外線の検査機等を用いて常に幅方向の水分量とバラツキをチェックするようにできる。
次に、ドクターチャンバー形式の実施形態2について、具体的な構造を以下に詳細に説明する。
なお、前述の薬液塗布手段53を構成するドクターチャンバー形式のフレキソ印刷方式による2つの薬液塗布部53A、53Bの一方のみを抜き出した構造の薬液供給装置100を以下に詳細に説明するが、薬液塗布部53A、53Bの他方も同様な構造になっていることは言うまでもない。尚、図14に示す薬液供給装置100の左右方向をX軸方向、上下方向をY軸方向とする。
従って、前述のドクターチャンバー61A、61Bが、本実施形態ではドクターチャンバー130とされ、前述の弾性ロール65A、65Bが、本実施形態では回動部160とされることになる。
押出ホース121は、一端が貯留タンク110内に挿入され、他端がドクターチャンバー130の導入部132と接続されたホースであり、貯留タンク110内の薬液Lを搬送する流路として機能する。供給ポンプ122は、押出ホース121に取り付けられ、図示しない駆動モータにより駆動されて、貯留タンク110内の薬液Lをドクターチャンバー130へ加圧送給する。調整弁123は、供給ポンプ122により押出される薬液Lの流量を弁の開閉により調整する。
引込ホース141は、一端が貯留タンク110内に挿入され、他端が後述のドクターチャンバー130の導出部133と接続されたホースであり、導出部133より導出される薬液Lを貯留タンク110に搬送する流路として機能する。
吸引ポンプ142は、引込ホース141に取り付けられ、図示しない駆動モータにより駆動されて、導出部133より導出される薬液Lを吸引させて貯留タンク110(外部)へ排出させる。
貯留部131aは、アニロックスロール151側の端部が開口し、導入部132及び導出部133と連結され、内部に貯留される薬液Lをアニロックスロール151に供給する。そして、アニロックスロール151への供給量が一定となるように、導入部132より貯留部131aに導入される薬液Lの一部が導出部133を介して導出されることで、循環されるよう構成されている。
従って、前述のアニロックスロール63A、63Bが、本実施形態ではアニロックスロール151とされることになる。
ブレード131b,131cは、アニロックスロール151と当接するように設けられ、アニロックスロール151に押しつけた状態で薬液Lの絞りを行う。
継手133aは、一端が本体部131に接続され、他端が引込部140の引込ホース141に接続され、引込部140と本体部131とを連結する管状の継手である。
つまり、継手133aに孔部133bが設けられているため、継手133a内の薬液Lは外気接触することとなる。そのため、導入部132より導入した薬液Lの一部を排出(導出部133から導出)して薬液Lを循環させる際に、吸引ポンプ142で薬液Lの吸引を行っても、上記孔部133bによって薬液Lが外気接触して、内圧を外気圧に近づけることができるので、ドクターチャンバー130内の内圧変動を抑えることができる。
なお、当該孔部133bは、ドクターチャンバー130内の内圧変動が抑えられればよいため、例えば、本体部131の上面に貯留部131aに連通するように形成してもよい。
つまり、上記チューブ133c内への流入が確認された場合は、貯留部131aに貯留される薬液Lの量が過多になっている(アニロックスロール151に対して薬液Lが過供給状態となっている)ことが把握できる。したがって、上記過多の状態を目視で確認した使用者は、例えば、調整弁123を操作して薬液Lの押出量(流量)を調整することにより、当該過多の状態を解消することが可能となる。
なお、チューブ133cは、内部が空洞で上端側が外気に接触しているため、上記孔部133bの作用を相殺してしまうことはない。
つまり、前述の刷版ロール64A、64Bが、本実施形態では刷版ロール152とされることになる。
さらに、アニロックスロール151は、円柱状をなし、XY平面に直交する軸回りに回動可能に構成されているため、上記のように周面に吸着された薬液Lは、回動によって刷版ロール152に転写することが出来る。
そのため、刷版ロール152は、左端で当接する回動部160がr1方向に回動することでr2方向に回動するとともに、右端で当接するアニロックスロール151をr1方向に回動させる。つまり、刷版ロール152は、アニロックスロール151の周面に吸着された薬液Lを点P2にて取得し、r2方向への回動により点P1まで搬送して積層連続シートS2に転写することができる。
そのため、アニロックスロール151により吸着された薬液Lがアニロックスロール151の周面上に層状に不均一に残ってしまう場合でも、刷版ロール152の周面に移送させることで、積層連続シートS2に薬液Lを均一に転写することができる。
なお、回動部160の回動の向きは、図14においてr1方向としたが、r2方向に回動するように構成しても勿論良い。この場合、アニロックスロール151及び刷版ロール152は図14とは逆方向(つまり、アニロックスロール151:r2方向、刷版ロール152:r1方向)に回動する。
まず、供給ポンプ122を駆動させ、貯留タンク110より薬液Lを押出し、押出ホース121及びドクターチャンバー130の導入部132を介して本体部131の貯留部131aへ供給する。
次いで、回動部160を回動させてアニロックスロール151に貯留部131aの薬液Lを供給し、刷版ロール152を介して薬液Lを積層連続シートS2上に転写させる。
加えて、吸引ポンプ142を駆動させ、導出部133を介して貯留部131aの薬液Lの一部を貯留タンク110へ向けて排出して循環させる。この際、導出部133の継手133a内で、孔部133bを介した外気接触によりドクターチャンバー130内の内圧変動が抑えられる。
また、上記循環の際に、薬液Lのチューブ133c内への流入が確認された場合、調整弁123を操作して薬液Lの流量の調整を行う。
したがって、薬液供給装置100は、ドクターチャンバー130から薬液Lを吸い出す際の、ドクターチャンバー130内の内圧変動を抑えるとともに、極力省スペースで設置できる薬液供給装置100であるといえる。
また、ドクターチャンバー130は、孔部133bに下端が連結され、上方に延伸した透明又は半透明のチューブ133cを備える。
また、チューブ133cの上端(自由端)を下向きにして設けることで、孔部133bへの紙粉等の異物の混入を防止することができる。
次に、ドクターチャンバー形式の実施形態3の薬液供給装置200について、図16を用いて説明する。
ドクターチャンバー形式の実施形態2の薬液供給装置100では、孔部133bに連結されたチューブ133c内への薬液Lの流入を目視により確認することで、アニロックスロール151に対して薬液Lが過供給状態となっていることを把握できるように構成したが、本実施形態の薬液供給装置200では、上記状態に至ったか否かを自動的に判別し、使用者に判別結果を報知するように構成する。
以下の薬液供給装置200の説明においては、ドクターチャンバー形式の実施形態2の薬液供給装置100との相違点を中心に説明し、一致する構成には、同一の符号を付し、説明を省略する。
センサ133fは、例えば、被検知体に向けて発光する発光素子(図示省略)と、被検知体からの反射光を受光する受光素子(図示省略)と、を含み、受光素子からの反射光の受光量に基づいて、円筒状部133dに流入する薬液Lの高さが、当該センサ133fの設けられた高さ位置(図16に示すy1)に達したか否かを検知するセンサである。
報知部133gは、例えば、スピーカ等であり、センサ133fにより、円筒状部133dに流入する薬液Lの高さが、上記センサ133fの設けられた高さ位置に達したと検知された場合に、音声により使用者への報知を行うように構成されている。
なお、円筒状部133dは、内部が空洞で上端側が外気に接触しているため、孔部133bの作用を相殺してしまうことはない。
次いで、回動部160を回動させてアニロックスロール151に貯留部131aの薬液Lを供給し、刷版ロール152を介して薬液Lを積層連続シートS2上に転写させる。
加えて、吸引ポンプ142を駆動させ、導出部233を介して貯留部131aの薬液Lの一部を貯留タンク110へ向けて排出して循環させる。この際、導出部233の継手133a内で、孔部133bでの外気接触を介してドクターチャンバー130内の内圧変動が抑えられる。
また、上記循環の際に、センサ133fにより、円筒状部133dに流入する薬液Lの高さが、センサ133fの設けられた高さ位置に達したと検知され、報知部133gにより使用者へその旨が報知された場合、調整弁123を操作して薬液Lの流量の調整を行う。
次に、ドクターチャンバー形式の実施形態4の薬液供給装置300について、図17を用いて説明する。
ドクターチャンバー形式の実施形態2の薬液供給装置100及び実施形態3の薬液供給装置200では、孔部133bの開口量は固定値となるように構成したが、本実施形態の薬液供給装置300では、当該開口量を調整できるように構成する。
以下の薬液供給装置300の説明においては、ドクターチャンバー形式の実施形態2の薬液供給装置100及び実施形態3の薬液供給装置200との相違点を中心に説明し、一致する構成には、同一の符号を付し、説明を省略する。
バルブ本体133iは、上記孔部133jの開口の上方に配設され、先端がテーパ状で上下動可能なニードル軸(図示省略)を備え、当該ニードル軸を上下動させて、孔部133jのオリフィスと接触する際の開度に応じて孔部133jの開口量を調整できるように構成されている。
つまり、内圧変動を抑えることで、内圧変動によりもたらされるドクターチャンバー130内からの薬液Lの噴出や、アニロックスロール151上の薬液Lのドクターチャンバー130側への吸込み等が好適に防止されるので、薬液Lの循環が促進される。
次いで、回動部160を回動させてアニロックスロール151に貯留部131aの薬液Lを供給し、刷版ロール152を介して薬液Lを積層連続シートS2上に転写させる。
加えて、吸引ポンプ142を駆動させ、導出部333を介して貯留部131aの薬液Lの一部を貯留タンク110へ向けて排出して循環させる。上記循環の際、センサ133fにより、円筒状部133dに流入する薬液Lの高さが、センサ133fの設けられた高さ位置に達したと検知され、報知部133gにより使用者へその旨が報知された場合、調整弁123の操作又は調整部133hによる孔部133jの開口量の調整により対処することが出来る。
例えば、薬液供給装置100において、チューブ133cを設けない場合は、孔部133bの上部にエアーフィルタを設置し、孔部133bへの紙粉等の異物の混入を防止するように構成してもよい。また、孔部133bは、貯留部131aの薬液Lの液面より上方であれば、本体部131の側面に設けてもよい。
ここでは、フキレソ印刷方式における2ロール転写形式の一例を説明する。
図11及び図19に示すように一方のフキレソ印刷方式とされる薬液塗布部53Aは、薬液の入っている薬液タンク66Aにディップロールである絞りロール62Aが浸されつつ回転可能に設置されている。さらに、薬液タンク66A外において絞りロール62Aと接しつつアニロックスロール63Aが、回転可能に設置されており、また、このアニロックスロール63Aと接し且つ積層連続シートS2の一面とも接する刷版ロール64Aが回転可能に設置されていて、積層連続シートS2を挟んで対向している弾性ロール65Aとで積層連続シートS2に圧力を付与している。
そして、本実施の形態では、この薬液塗布部53Aが後述するコンタクトエンボス手段54のコロ54Aと対向し且つ、前述のワインディングドラム56Aとも対向する積層連続シートS2の面側に位置している。
そして、本実施の形態では、この薬液塗布部53Bがコロ54Aと非対向とされ且つ、前述のワインディングドラム56Aとも非対向となる積層連続シートS2の他の面側に位置している。
具体的には、片面毎の塗布量を変えるだけでなく、フレキソ版の線数を15~40線程度、頂点面積率を20~40%程度の薬液が飛散しない程度に粗くすることが考えられ、このようにすることで、塗布直後はドット柄が残り、瞬間的に塗布部分と未塗布部分ができるようになる。
薬液タンク66A、66B等の塗布装置内で循環する薬液に含まれる紙粉やエアーのろ過装置を設置する必要があるが、ろ過装置としてはフィルターで紙粉等を除去することが考えられる。さらに、薬液タンク66A、66B等の塗布装置内で薬液の温度をコントロールし、薬液粘度を安定させる必要が考えられるが、薬液タンク66A、66Bに繋がる中間タンク及び配管にヒーターを設置することが考えられる。他方、操業中に積層連続シートS2の幅方向の水分率で塗布量を管理する必要が考えられるが、例えば赤外線の検査機等を用いて常に幅方向の水分量とバラツキをチェックするようにできる。
フキレソ印刷方式における1ロール転写形式とは、前述のフレキソ2ロール転写形式から絞りロール62A、62Bを省略したものである。この場合、アニロックスロール63A、63Bが、それぞれ薬液タンク66A、66Bに浸されつつ回転可能に設置される。また、これらのアニロックスロール63A、63Bに対しては、アニロックスロール63A、63B表面の薬液を掻き取るドクターブレード(図示せず)を設置しても良い。このようなフレキソ1ロール転写形式は、メンテナンスが比較的容易であるという利点や、ブレードの摩耗や薬液中の紙粉等の異物の混入状態を容易に目視できるという利点を有している。
塗布する薬液について、粘度は高速加工を行う観点から40℃で1~700mPa・sとする。より好ましくは50~400mPa・s(40℃)とする。1mPa・sより小さいとアニロックスロール、刷版ロール、グラビアロール等のロール上で薬液が飛散しやすくなり、逆に700mPa・sより大きいと各ロールや連続シートへの塗布量をコントロールしにくくなる。成分はポリオールを70~90%、水分を1~15%、機能性薬品を0.01~22%含むものとする。
ポリオールはグリセリン、ジグリセリン、プロピレングリコール、1,3-ブチレングリコール、ポリエチレングリコール、およびその誘導体等の多価アルコール、ソルビトール、グルコース、キシリトール、マルトース、マルチトール、マンニトール、トレハロース等の糖類を含む。
機能性薬剤としては、柔軟剤、界面活性剤、無機および有機の微粒子粉体、油性成分などがある。柔軟剤、界面活性剤はティシューに柔軟性を与えたり表面を滑らかにする効果があり、アニオン性界面活性剤、カチオン性界面活性剤及び両性イオン界面活性剤を適用する。無機および有機の微粒子粉体は表面を滑らかな肌触りとする。油性成分は滑性を高める働きがあり、流動パラフィン、セタノール、ステアリルアルコール、オレイルアルコール等の高級アルコールを用いることができる。
また機能性薬剤としてポリオールの保湿性を助けたり、維持させる薬剤として親水性高分子ゲル化剤、コラーゲン、加水分解コラーゲン、加水分解ケラチン、加水分解シルク、ヒアルロン酸若しくはその塩、セラミド等の1種以上を任意の組合せ等の保湿剤を加えることができる。
また機能性薬剤として香料、各種天然エキス等のエモリエント剤、ビタミン類、配合成分を安定させる乳化剤、薬液の発泡を抑え塗布を安定させるための消泡剤、防黴剤、有機酸などの消臭剤を適宜配合することができる。さらには、ビタミンC、ビタミンEの抗酸化剤を含有させてもよい。
上記成分のうち、グリセリン、プロピレングリコール等の多価アルコールを主成分とすることが、薬液の粘度、塗布量を安定させる上で好ましい。
薬液塗布時の温度は30℃~60℃、好ましくは35℃~55℃とすることが好ましい。
ティシュペーパー製品用二次原反ロールの製造設備X3には、積層連続シートS2に対してコンタクトエンボスを付与するコンタクトエンボス手段54を設けることができる。
ここで、コンタクトエンボス手段54は、図13に示すように、金属ロール又は弾性ロールである受けロール54Bと表面に細かい凸部54Cを有する金属製で硬質のコロ54Aとが所定の圧力を有して相互に外周面同士を当接しつつ、それぞれ回転可能に設置されている。そして、積層連続シートS2におけるティシュペーパー製品の幅方向中央に該当する部分に対して、左右各2つずつ存在する凸部54Cと、受けロール54Bとの間で積層連続シートS2を挟みつつ搬送することで、積層連続シートS2に対して、積層連続シートS2の連続方向に沿って層間剥離を防止するライン状のコンタクトエンボスCEを施すようになっている。
尚、このコンタクトエンボスCEを施すコロ54Aと対向した側の面を外周側として前述の巻取り手段56が、積層連続シートS2を巻取ることになる。
さらに、接合する為の手段としては上記例に限定されず、凸部の先端形状が、点状、正方形、長方形、円形、楕円形等の形状のものをコロとして用いても良く、凸部の先端形状が、細長い線状、細く斜めに伸びる線状等のものをコロとして用いても良い。
他方、凸部の配列としては等間隔が考えられるが、千鳥状としたり、等間隔としなくとも良く、また、凸部を1列に配置してコンタクトエンボスを連続して付与する他に、凸部を2列以上の複数列配置することも考えられる。そして、コンタクトエンボスを緊密に複数列付与するように凸部が配置された群を複数並べて、複数のコンタクトエンボス群を付与するようにしても良い。尚、接合工程としては、上記のように機械的に圧力を加えて接合する他に、超音波等の他の手段により接合しても良い。
一次連続シートS11、S12の原料パルプは、特に限定されず、ティシュペーパー製品の用途に応じて適宜の原料パルプを選択して使用することができる。原料パルプとしては、例えば、木材パルプ、非木材パルプ、合成パルプ、古紙パルプなどから、より具体的には、砕木パルプ(GP)、ストーングランドパルプ(SGP)、リファイナーグランドパルプ(RGP)、加圧式砕木パルプ(PGW)、サーモメカニカルパルプ(TMP)、ケミサーモメカニカルパルプ(CTMP)、ブリーチケミサーモメカニカルパルプ(BCTMP)等の機械パルプ(MP)、化学的機械パルプ(CGP)、半化学的パルプ(SCP)、広葉樹晒クラフトパルプ(LBKP)、針葉樹晒クラフトパルプ(NBKP)等のクラフトパルプ(KP)、ソーダパルプ(AP)、サルファイトパルプ(SP)、溶解パルプ(DP)等の化学的パルプ(CP)、ナイロン、レーヨン、ポリエステル、ポリビニルアルコール(PVA)等を原料とする合成パルプ、脱墨パルプ(DIP)、ウエストパルプ(WP)等の古紙パルプ、かすパルプ(TP)、木綿、アマ、麻、黄麻、マニラ麻、ラミー等を原料とするぼろパルプ、わらパルプ、エスパルトパルプ、バガスパルプ、竹パルプ、ケナフパルプ等の茎稈パルプ、靭皮パルプ等の補助パルプなどから、一種又は数種を適宜選択して使用することができる。
また、紙厚(尾崎製作所製ピーコックにより測定)は1プライで80~250μm、好ましくは100~200μm、より好ましくは130~180μmとされる。
次に、本発明に係るティシュペーパー製品用二次原反ロールの製造方法の一例を説明する。本形態に係るティシュペーパー製品用二次原反ロールの製造方法は、例えば、上述したティシュペーパー製品用二次原反ロールの製造設備X3を用いて行うことができる。
図11に示すように、本発明に係るティシュペーパー製品用二次原反ロールの製造方法においては、プライ手段51で複数の一次原反ロールから繰り出される一次連続シートS1をその連続方向に沿って積層して積層連続シートS2とし(積層工程)、この積層連続シートS2に対して、コンタクトエンボス手段54で層間に剥離やズレが生じることを防止するライン状のコンタクトエンボスを施し(コンタクトエンボス工程)、次に、積層連続シートS2に対して一対の薬液塗布手段53で薬液を塗布し(薬液塗布工程)、スリット手段55によって積層連続シートS2をティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットし(スリット工程)、次に、スリット工程でスリットされた積層連続シートS2を同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールRを、巻き取り手段56によって形成する。
上述のティシュペーパー製品用二次原反ロールの製造設備、製造方法で製造された二次原反ロールRは、マルチスタンド式インターフォルダに多数セットされ、セットされた二次原反ロールRから二次連続シートを繰り出して折り畳むと共に積層することによってティシュペーパー束が製造される。以下では、そのマルチスタンド式インターフォルダの一例について説明する。
ところで、前述したように、ティシュペーパー束30aを構成するティシュペーパーの紙の方向は、ティシュペーパーの折り畳み部の延在方向と直交する方向に沿って横方向(CD方向)となるため、図6(b)に示すように、ティシュペーパーTを収納箱Bから引き出す際には、その引き出し方向は、ティシュペーパーTの横方向(CD方向)と沿うようになっている。
本発明には、以下の発明も含まれる。
(発明A1)
一次原反ロールから連続的にティシュペーパー製品用の複数の二次原反ロールを製造するティシュペーパー製品用二次原反ロールの製造設備であって、
複数の一次原反ロールから繰り出される一次連続シートをその連続方向に沿って積層して積層連続シートとする積層手段と、
積層連続シートに対して層間の剥離及びズレを防止するライン状のコンタクトエンボスを施すコンタクトエンボス手段と、
前記コンタクトエンボス手段の後段に設置された、積層連続シートに対して薬液を塗布する薬液塗布手段と、
積層連続シートをティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットするスリット手段と、
スリットされた各積層連続シートを同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールを形成する巻取り手段と、を有することを特徴とするティシュペーパー製品用二次原反ロールの製造設備。
前記コンタクトエンボス手段の前段に、積層連続シートにカレンダーによって平滑化処理する平滑化手段を有する、発明A1に記載のティシュペーパー製品用二次原反ロールの製造設備。
前記薬液塗布手段がグラビア印刷方式である、発明A1又は発明A2に記載のティシュペーパー製品用二次原反ロールの製造設備。
前記薬液塗布手段がフレキソ印刷方式である、発明A1又は発明A2に記載のティシュペーパー製品用二次原反ロールの製造設備。
複数の一次原反ロールから繰り出される一次連続シートをその連続方向に沿って積層して積層連続シートとする積層工程と、
積層連続シートに対して層間の剥離及びズレを防止するライン状のコンタクトエンボスを施すコンタクトエンボス工程と、
前記コンタクトエンボス工程の後に、積層連続シートに対して薬液を塗布する薬液塗布工程と、
積層連続シートをティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットするスリット工程と、
スリットされた各積層連続シートを同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールを形成する巻取り工程と、
複数の前記二次原反ロールから繰り出される複数の二次連続シートをその連続方向に沿って移送すると共に、折畳みながら積み重ねる工程と、を有することを特徴とするティシュペーパー製品の製造方法。
前記コンタクトエンボス工程の前に、積層連続シートにカレンダーによって平滑化処理する平滑化工程を有する、発明B1に記載のティシュペーパー製品の製造方法。
前記薬液の塗布をグラビア印刷方式によって行う、発明B1又は発明B2に記載のティシュペーパー製品の製造方法。
前記薬液の塗布をフレキソ印刷方式によって行う、発明B1又は発明B2に記載のティシュペーパー製品の製造方法。
複数の一次原反ロールから繰り出される一次連続シートをその連続方向に沿って積層して積層連続シートとする積層手段と、
積層連続シートに対して層間の剥離及びズレを防止するライン状のコンタクトエンボスを施すコンタクトエンボス手段と、
前記コンタクトエンボス手段の後段に設置された、積層連続シートに対して薬液を塗布する薬液塗布手段と、
積層連続シートをティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットするスリット手段と、
スリットされた各積層連続シートを同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールを形成する巻取り手段と、
複数の前記二次原反ロールから繰り出される複数の二次連続シートをその連続方向に沿って移送すると共に、折畳みながら積み重ねる手段と、を有することを特徴とするティシュペーパー製品の製造設備。
前記コンタクトエンボス手段の前段に、積層連続シートにカレンダーによって平滑化処理する平滑化手段を有する、発明C1に記載のティシュペーパー製品の製造設備。
前記薬液塗布手段がグラビア印刷方式である、発明C1又は発明C2に記載のティシュペーパー製品の製造設備。
前記薬液塗布手段がフレキソ印刷方式である、発明C1又は発明C2に記載のティシュペーパー製品の製造設備。
52・・・カレンダー手段(平滑化工程)
53・・・薬液塗布手段(薬液塗布工程)
54・・・コンタクトエンボス手段(コンタクトエンボス工程)
55・・・スリット手段(スリット工程)
56・・・巻き取り手段(巻き取り工程)
S11、S12・・・一次連続シート
S2・・・積層連続シート
JR・・・一次原反ロール
R・・・二次原反ロール
Claims (4)
- 一次原反ロールから連続的にティシュペーパー製品用の複数の二次原反ロールを製造するティシュペーパー製品用二次原反ロールの製造方法であって、
複数の一次原反ロールから繰り出される一次連続シートをその連続方向に沿って積層して積層連続シートとする積層工程と、
積層連続シートに対して層間の剥離及びズレを防止するライン状のコンタクトエンボスを施すコンタクトエンボス工程と、
前記コンタクトエンボス工程の後に、積層連続シートに対して薬液を塗布する薬液塗布工程と、
積層連続シートをティシュペーパー製品の製品幅又はその複数倍幅となるようにスリットするスリット工程と、
スリットされた各積層連続シートを同軸で巻取ってティシュペーパー製品の製品幅又はその複数倍幅の複数の二次原反ロールを形成する巻取り工程と、を有することを特徴とするティシュペーパー製品用二次原反ロールの製造方法。 - 前記コンタクトエンボス工程の前に、積層連続シートにカレンダーによって平滑化処理する平滑化工程を有する、請求項1に記載のティシュペーパー製品用二次原反ロールの製造方法。
- 前記薬液の塗布をグラビア印刷方式によって行う、請求項1又は請求項2に記載のティシュペーパー製品用二次原反ロールの製造方法。
- 前記薬液の塗布をフレキソ印刷方式によって行う、請求項1又は請求項2に記載のティシュペーパー製品用二次原反ロールの製造方法。
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| EP2520206A4 (en) * | 2009-12-28 | 2014-09-17 | Daio Seishi Kk | METHOD FOR MANUFACTURING SECONDARY ROLLER WHOLE FOR THIN PAPER PRODUCT |
| EP3165142A1 (en) * | 2015-11-04 | 2017-05-10 | Lucart Spa | Hygienic product and apparatus for its manufacture |
| TWI883276B (zh) * | 2020-10-06 | 2025-05-11 | 日商大王製紙股份有限公司 | 面紙的製造方法及面紙製品的製造方法 |
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| JP4777468B1 (ja) * | 2010-05-31 | 2011-09-21 | 大王製紙株式会社 | 薬液含有ティシュペーパーの製造方法及び薬液中の紙粉除去装置 |
| JP5985937B2 (ja) * | 2012-09-10 | 2016-09-06 | 大王製紙株式会社 | ティシュペーパー製品の製造方法及びティシュペーパー製品 |
| CN113290946B (zh) * | 2021-07-27 | 2021-10-01 | 华昊无纺布(南通)有限公司 | 一种纸尿裤3d压花装置 |
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