HK1197260B - Adhesive tape package production method - Google Patents

Description

Method for manufacturing adhesive tape packaging bag

Technical Field

The present invention relates to a packaging bag for packaging an adhesive tape having an adhesive layer on a support, and more particularly to a method for manufacturing the packaging bag.

Background

Conventionally, adhesive tapes having various shapes have been known and used for various applications such as labels, medical applications, cosmetics, decoration, masking, industrial applications, and others. As the adhesive tape used for medical use, there is an adhesive tape that is generally stuck to the skin, mucous membrane, or the like in the form of an adhesive patch such as a cataplasm, a plaster, a band-aid, a surgical tape, or a tape.

Such an adhesive tape generally includes a support and an adhesive layer provided on one surface of the support, and a release sheet is releasably attached to the adhesive layer. After being manufactured, the adhesive tapes are cut into an appropriate size and distributed and sold in a state of being individually put in a packaging bag for hygienic and physical protection. In this case, the package bag is broken at the time of use, the adhesive tape is taken out, and the release sheet is peeled off to expose the adhesive layer and adhere the adhesive layer to the adhesion site.

Occasionally, it is problematic to peel off the release sheet in use. That is, since the release sheet is generally thin and flexible, handling is difficult and peeling may take time. In addition, when the adhesive tape is used, the release sheet and the packaging bag are generated as garbage.

Therefore, a pressure-sensitive adhesive tape packaging bag as described in patent document 1 has been proposed. The packaging bag is formed by folding 2 adhesive tapes so that the adhesive layers face outward, sandwiching the double-folded adhesive tapes therebetween, covering the adhesive tapes with a release sheet, and sealing the periphery of the release sheet. In this configuration, the release sheet functions as a packaging bag, and therefore, a packaging bag that has been conventionally required can be omitted.

Further, a member is provided for temporarily fastening the front half of the double-folded adhesive tape to the back side portion of the release sheet so as to expose only the half of the adhesive layer when the front side portion of the release sheet for opening the packaging bag is pulled away from the back side portion. Accordingly, when the adhesive tape is opened, the adhesive tape is held by the front side portion of the release sheet in a folded-in state, and the front side half of the adhesive layer is exposed, so that the adhesive tape can be easily stuck to the sticking portion.

Prior art documents

Patent document

Patent document 1: international publication No. 2010/071104

However, although the above-described adhesive tape packaging bags can be easily manufactured one by one, various efforts are required in mass production. Accordingly, an object of the present invention is to provide a method for manufacturing a splicing tape packaging bag suitable for mass production.

Disclosure of Invention

In order to achieve the above object, a method for manufacturing an adhesive tape packaging bag for housing an adhesive tape having a support and an adhesive layer provided on one surface of the support, that is, an adhesive tape packaging bag including a release sheet to which the adhesive layer of the adhesive tape is releasably adhered, the method including a step of feeding a release sheet base material to be a release sheet to a predetermined feed position, sequentially feeding a plurality of adhesive tapes in 1 row at the feed position with respect to the release sheet base material, forming a predetermined gap between the adhesive tapes adjacent in the front and rear in the feed direction, bonding the adhesive tapes to the release sheet base material, folding the release sheet base material and the adhesive tapes in two, and forming a plurality of housing spaces for housing 1 adhesive tape in each of the folded release sheet base materials, the method for producing the adhesive tape packaging bag includes a step of sealing a predetermined portion of the release sheet base material, a step of temporarily fastening a part of each of the release sheet base material and the adhesive tape, and a step of cutting the release sheet base material to form the adhesive tape packaging bag.

A method of manufacturing a package bag for adhesive tapes is considered, which includes an auxiliary step of cutting the adhesive tape base material to be the adhesive tape to form 1 row of adhesive tapes and an auxiliary step of separating adjacent adhesive tapes from each other, spreading the space between the adjacent adhesive tapes, and transferring the adhesive tapes to a feeding position.

Alternatively, the step of adhering the adhesive tape to the release sheet base material may include an auxiliary step of forming 1 line of adhesive tape on the liner by half-cutting the liner-attached adhesive tape base material with the liner left, and an auxiliary step of transferring the adhesive tape to the feed position while peeling the liner.

Although the adhesive tapes are fed to the release sheet base material in a single row, it is conceivable to form the adhesive tapes in 2 or more rows and spread the gap between the adhesive tapes not only in the front and rear direction of the feeding direction but also in the left and right lateral directions. In this case, a plurality of adhesive tapes are sequentially fed in a plurality of rows at a feed position with respect to the release sheet base material, a predetermined gap is formed between the adjacent adhesive tapes in the front, rear, left, and right directions in the feed direction, the adhesive tapes are bonded to the release sheet base material, and then the release sheet base material is cut in the longitudinal direction thereof, thereby forming a plurality of release sheet base materials to which 1 row of adhesive tapes is bonded, respectively.

The method for manufacturing the adhesive tape packaging bag includes an auxiliary step of cutting the adhesive tape web to form a plurality of adhesive tape rows and an auxiliary step of separating the adjacent adhesive tapes in the front, rear, left and right directions from each other, and transferring the adhesive tapes to the feeding position while expanding the interval between the adjacent adhesive tapes.

Alternatively, the step of adhering the adhesive tape to the release sheet base material may include an auxiliary step of forming a plurality of lines of adhesive tapes on the liner by half-cutting the liner-attached adhesive tape base material with the liner left, and an auxiliary step of transferring the adhesive tape to the feed position while peeling the liner.

In addition, the sealing is preferably heat sealing. Preferably, the temporary fastening is also performed by thermal bonding.

Preferably, in the step of sealing a predetermined portion of the release sheet base material, 2 sealing portions are formed at regular intervals between adjacent housing spaces, and in the step of cutting the release sheet base material, the 2 sealing portions are cut.

Effects of the invention

According to the manufacturing method of the present invention, since the adhesive tape is adhered to the release sheet base material and folded in two, and then the release sheet base material is cut, the manufacturing efficiency is improved. That is, when a release sheet substrate is cut in advance, a release sheet of a product size is prepared, and then an adhesive tape is attached to the release sheet, complicated manufacturing facilities for the release sheet and the adhesive tape in a scattered state are required, and efficiency is deteriorated, and the cost of the manufacturing facilities is increased.

In addition, after the adhesive tape is adhered to the release sheet base material, a plurality of adhesive tapes can be stored in a batch with respect to 1 release sheet base material and temporarily fastened, which also contributes to improvement of manufacturing efficiency.

Drawings

Fig. 1 is a front view of a splicing tape packaging bag manufactured by a splicing tape packaging bag manufacturing method according to the present invention.

Fig. 2 (a) to (c) are perspective views showing a simple method of manufacturing the adhesive tape packaging bag of fig. 1.

Fig. 3 is a schematic sectional view taken along the line III-III of fig. 1.

Fig. 4 (a) and (b) are views each showing another shape of the temporary tightening portion.

Fig. 5 (a) and (b) are perspective views showing a method of using the pressure-sensitive adhesive tape packaging bag of fig. 1.

Fig. 6 (a) to (d) are views showing a case where the adhesive tape is attached to the attachment portion using the adhesive tape packaging bag of fig. 1.

Fig. 7 is a schematic view showing the steps of the method for manufacturing a pressure-sensitive adhesive tape packaging bag according to the present invention.

Fig. 8 is a schematic view showing the manufacturing process following fig. 7, wherein (a) is a plan view thereof, and (b) is a side view thereof.

Fig. 9 is an explanatory view showing a cutting position of the adhesive tape web.

Fig. 10 is a plan view schematically showing an example of a separating and transferring apparatus that can be used in the method for manufacturing a splicing tape packaging bag according to the present invention.

Fig. 11 is a side view schematically showing a suitable separating and transferring apparatus that can be used in the method for manufacturing a splicing tape packaging bag according to the present invention.

Fig. 12 is a schematic explanatory view showing a trajectory of the adhesive tape transferred by the separating and transferring apparatus of fig. 11.

Fig. 13 is a perspective view schematically showing a folding device that can be used in the method for manufacturing a pressure-sensitive adhesive tape packaging bag according to the present invention.

Fig. 14 is a front view of the release sheet web showing the position of the sealing portion.

Fig. 15 is a schematic view showing another embodiment of the method for manufacturing a pressure-sensitive adhesive tape packaging bag according to the present invention.

Fig. 16 is a schematic view showing another embodiment of the method for manufacturing a pressure-sensitive adhesive tape packaging bag according to the present invention.

Detailed Description

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In all the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description thereof will be omitted.

Fig. 1 is a front view showing a splicing tape packaging bag 10 produced by the production method of the present invention, and fig. 2 (a) to (c) are perspective views for showing the structure of the splicing tape packaging bag 10 of fig. 1 in more detail. Fig. 3 is a schematic sectional view taken along the line III-III of fig. 1.

The illustrated adhesive tape packaging bag 10 is composed of an adhesive tape 14 having an adhesive layer 12 on one surface and a release sheet 16 which is sealed in a state in which the adhesive tape 14 is folded in two. The adhesive tape 14 and the release sheet 16 are rectangular. As can be understood from fig. 1 and 2 (c), the adhesive tape packaging bag 10 is a so-called three-side seal packaging type, and is a type in which 1 sheet of the release sheet 16 is folded and 3 sides other than the folded side are sealed.

The pressure-sensitive adhesive tape packaging bag 10 is used for various purposes such as labeling, medical use, cosmetic use, decorative use, masking use, industrial use, and others. In particular, the adhesive tape packaging bag used for medical use, cosmetic use, and the like can be used as a packaging bag for an adhesive agent to be generally adhered to the skin, mucous membrane, and the like, such as a cataplasm, a plaster, a band-aid, a surgical tape, a cosmetic cream, a tape, and a bonded heat pack.

As shown in fig. 3, the adhesive tape 14 includes a support 18 and an adhesive layer 12 laminated on one surface thereof. The material of the support 18 of the adhesive tape 14 may be any material as long as it can support the adhesive layer 12, and a film, a metal foil, or the like made of woven fabric, nonwoven fabric, plastic, or the like is generally used. The support may have a single-layer structure or a laminated structure, and may have a structure in which a plurality of woven fabrics or nonwoven fabrics made of different materials are laminated, or a structure in which a plastic film, a metal foil, or the like is laminated with a woven fabric or a nonwoven fabric.

The woven or nonwoven fabric used for the adhesive tape 14 of the present embodiment is not particularly limited, and any woven or nonwoven fabric may be used as long as the fibrous material is processed into a fabric shape and can be used for the support 18 of the adhesive tape 14, and for example, a woven fabric processed into a fabric shape by gathering the loops by circular knitting, warp knitting, weft (horizontal) knitting, or the like is also included.

A preferred example of the woven or nonwoven fabric includes a woven or nonwoven fabric composed of at least one resin fiber selected from the group consisting of polyester resins, polyethylene resins, and polypropylene resins, and among these, a woven or nonwoven fabric composed of polyester polyethylene terephthalate having little interaction with the components contained in the adhesive layer is preferred.

Examples of the plastic film include plastic films formed using polyesters such as polyethylene terephthalate, polyamides such as nylon, polyolefins such as polyethylene and polypropylene, polyvinyl chloride, plasticized vinyl chloride-vinyl acetate copolymer, polyvinylidene chloride, ethylene-vinyl acetate copolymer, cellulose acetate, ethyl cellulose, ethylene-ethyl acrylate copolymer, polytetrafluoroethylene, polyurethane, and ionomer resins. When the adhesive tape 14 is used as an adhesive for medical use or cosmetic use, it is preferable to use a material having sufficient stretchability or non-stretchability as an adhesive for the support 18, and in particular, a plain knitted woven fabric (woven fabric) of polyethylene terephthalate is preferable.

The woven fabric used as the support 18 preferably has a weight per unit area (mass per unit) of 50 to 500g/m². Preferably, the support 18 has a modulus in the longitudinal direction (long axis direction) of 2 to 12N/5cm and a modulus in the transverse direction (short axis direction) of 2 to 12N/5cm, when measured according to JIS L1018. The longitudinal direction mentioned here means a flow direction in a process of producing a woven fabric, and the lateral direction means a direction perpendicular to the longitudinal direction, that is, a width direction. When the modulus in the longitudinal direction or the lateral direction is lower than 2N/5cm, the adhesive tape tends to be hardly stuck to the stuck portion while being stretched, and when the modulus in the longitudinal direction or the lateral direction is higher than 12N/5cm, the adhesive tape tends to be stretched excessively during sticking, and wrinkles tend to be easily generated. The modulus is a value of stress at 50% elongation at room temperature (25 ℃ C.).

By using the support body 18, the temporary fastening portions 50, 52, 54 described later can be easily formed, and the shape and structure of the support body 18 after being detached from the temporary fastening portions 50, 52, 54 are not substantially changed. That is, for example, no fuzz or the like is generated. In addition, the adhesive tape packaging bag 10 can be folded in two easily without increasing its volume. Further, at the time of pasting, it is difficult to attach so-called "mark marks" to the folded portions, and the two portions can be pasted neatly.

The adhesive component of the constituent material of the adhesive layer 12 is not particularly limited as long as it has adhesiveness and can adhere to the site of attachment, and an acrylic adhesive component, a rubber adhesive component, a silicone adhesive component, or the like is preferably used as the adhesive base, and among them, a rubber adhesive component is particularly preferably used from the viewpoint of adhesive properties.

As a specific rubber-based adhesive component, any of natural rubber and synthetic rubber can be used, and as the synthetic rubber, for example, a styrene-based block copolymer and polyisobutylene can be cited. Further, examples of the styrene-based block copolymer include a styrene-butylene-styrene block copolymer (SBS), a styrene-isoprene-styrene block copolymer (SIS), a styrene-ethylene/butylene-styrene block copolymer (SEBS), and a styrene-ethylene/propylene-styrene block copolymer (SEPS). Specific examples of the styrenic block copolymer include linear block copolymers such as KRATOND-1112, D-1111, D-1107 (trade name, manufactured by KRATON POLYMERS), JSR5000 or JSR5002 (trade name, manufactured by JEOL SYNTHETIC RUBBER), QUINTAC3530, 3421 or 3570C (trade name, manufactured by JEOL ZEON), KRATOND-KX401CS or D-1107CU (trade name, manufactured by KRATON POLYMERS), branched block copolymers such as KRATOND-1124 (trade name, manufactured by KRATON POLYMERS), SOLPRENE418 (trade name, manufactured by Phillipdroleum), and the like.

As the polyisobutylene, for example, polyisobutylene having a molecular weight ranging from a high molecular weight to a low molecular weight can be used, and examples thereof include Oppanol B10, B12, B12SF, B15, B15SF, B30SF, B50, B50SF, B80, B100, B120, B150, B200 (trade name, manufactured by BASF corporation), VistanexlM-MS, LM-MH, LM-H, MM L-80, MM L-100, MM L-120, MM L-140 (trade name, manufactured by Exxon Chemical Co., Ltd.), and the like.

Further, as the acrylic polymer, for example, a polymer or copolymer containing at least one kind of (meth) acrylic acid ester represented by 2-ethylhexyl acrylate, methyl acrylate, hydroxyethyl acrylate, 2-ethylhexyl methacrylate, etc., as a monomer unit, for example, octyl acrylate copolymer, 2-ethylhexyl acrylate/N-vinyl-2-pyrrolidone/1, 6-hexanediol dimethacrylate copolymer, 2-ethylhexyl acrylate/vinyl acetate copolymer, 2-ethylhexyl acrylate/2-ethylhexyl methacrylate/lauryl methacrylate copolymer, a copolymer of acrylic acid/vinyl acetate, a copolymer of acrylic acid/2-ethylhexyl methacrylate/lauryl methacrylate, a copolymer of acrylic acid/ethyl acrylate/vinyl acetate, a copolymer of acrylic acid/2-ethylhexyl methacrylate/lauryl methacrylate, a copolymer of acrylic acid/vinyl acetate, a copolymer of acrylic acid/2-ethylhexyl, Methyl acrylate-2-ethylhexyl acrylate copolymer resin latex, an adhesive such as an acrylic polymer contained in an alkanolamine solution of an acrylic resin, a Duro-Tak acrylic adhesive series (National Starch and Chemical Co., Ltd.), a GELVA acrylic adhesive series (Monsanto Co., Ltd.), SK-Dyne Matriderm (general research Chemical), and an EUDRAGIT series (trade company of Gutter).

The adhesive base may be used singly or in combination of two or more kinds.

When the adhesive tape 14 is used as a medical cataplasm, a plaster, or a cosmetic cream, a water-soluble polymer can also be used as the adhesive layer 12, and as such a water-soluble polymer, gelatin, agar, alginic acid, mannan, carboxymethyl cellulose or a salt thereof, hydroxypropyl cellulose or a salt thereof, polyvinyl alcohol, polyacrylic acid or a salt thereof, or a water-soluble polymer obtained by crosslinking at least one of them with an organic or inorganic crosslinking agent is preferably used.

In addition to the above-mentioned adhesive base, an adhesive imparting agent, a softening agent, a dissolving agent, water, a thickening agent, a wetting agent, a filler, a crosslinking agent, a polymerization agent, a dissolution assisting agent, an absorption promoter, a stabilizer, an antioxidant, an emulsifier, a surfactant, a pH adjusting agent, a drug, an ultraviolet absorber, and the like are suitably added to the adhesive layer 12.

The drug used when the adhesive tape 14 is used as a medical or cosmetic adhesive agent is not particularly limited as long as it is a drug that is transdermally absorbed into the body and exerts a pharmacological effect, and examples thereof include an anti-inflammatory agent, an analgesic agent, an antihistamine, a local anesthetic agent, a blood circulation promoter, an anesthetic agent, a neuroleptic agent, an antihypertensive agent, an antibacterial agent, and a vasodilator.

The release sheet 16 can be used as a release sheet generally used as a packaging bag of the adhesive tape 14. The release sheet 16 may be a single layer or a laminate, and the material of the structure is not particularly limited as long as the innermost layer (layer to be the inner side of the packaging bag) can be subjected to the production method of the present invention, and particularly, heat sealing and heat temporary fastening. For example, as the base material of the release sheet 16, paper, nonwoven fabric, aluminum, cellophane, nylon, high-density or low-density polyethylene, polyethylene terephthalate, polypropylene, polyvinyl chloride, polyamide, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetate copolymer, polycarbonate, polystyrene, ethylene-vinyl alcohol copolymer, or the like can be suitably selected, and in the case where a material that cannot be melted by heating is used as the base material, a material in which a thermoplastic material is laminated as a layer to be the inner side of the packaging bag is suitable. In particular, a sheet in which polyethylene, aluminum, and polyethylene are laminated in this order is preferable, and a sheet in which cellophane is further laminated on the outermost layer (layer to be the outer side of the packaging bag) is more preferable.

Further, the outermost layer may be coated with a material such as a printing ink or an adhesive, or a material provided with a thin film by a method such as vapor deposition or sputtering. As the thin film, a thin film having high gas barrier properties and transparency, such as silicon oxide, magnesium oxide, and acidified aluminum, is suitable in addition to a metal such as aluminum.

These release sheets 16 are preferably flexible since they bend when the adhesive tape 14 is sealed. Therefore, the thickness of the release sheet 16 is not particularly limited as long as it can be bent, but is preferably in the range of 10 to 500 μm, more preferably in the range of 15 to 300 μm.

Here, referring to fig. 2 (a), the adhesive tape 14 is shown in a state where the adhesive layer 12 is adhered to the release sheet 16 so as to be peelable downward, but both are adhered in a state where a center line of the adhesive tape 14 parallel to the short side direction thereof and a center line of the release sheet 16 parallel to the short side direction thereof are shifted from each other. When the release sheet 16 is folded together with the adhesive tape 14, the adhesive tape 14 is sandwiched between the two-folded release sheet 16 in a state of being folded in two, as shown in fig. 2 (b).

Now, half of the release sheet 16 that is folded is referred to as a 1 st portion 22, the remaining half is referred to as a 2 nd portion 24, half of the adhesive tape 14 that is folded together with the release sheet 16 is referred to as a 1 st portion 26, and the remaining half is referred to as a 2 nd portion 28. In the state where the release sheet 16 is bent, the 1 st portion 22 and the 2 nd portion 24 of the release sheet 16 are substantially the same shape and the same size, but the 1 st portion 26 of the adhesive tape 14 is larger than the 2 nd portion 28, and the 1 st portion 26 is in a state where it has a protruding portion 30 protruding from the 2 nd portion 28. In this state, the adhesive tape packaging bag 10 shown in fig. 1, 2 (c) and 3 is produced by heat-sealing 3 sides including the adhesive tape 14 in the portion where the 1 st part 20 and the 2 nd part 22 of the release sheet 16 are overlapped.

In such an adhesive tape packaging bag 10, when the 1 st part 22 of the release sheet 16 is pulled away from the 2 nd part 24 and opened, the adhesive layer 12 of the adhesive tape 14 folded in two is directed outward, and therefore, the adhesive layer 12 of the 1 st part 26 of the adhesive tape 14 is exposed to the outside.

However, when the part 1 26 of the adhesive tape 14 moves together with the part 1 22 of the release sheet 16 and the adhesive layer 12 of the part 228 of the adhesive tape 14 is exposed, it is not convenient to know which side of the adhesive layer 12 is exposed on the front and back sides. That is, when opening, it is important to hold the 1 st part 26 of the adhesive tape 14 on the 2 nd part 24 of the release sheet 16 at a time and expose the adhesive layer 12 of the 1 st part 26 of the adhesive tape 14. Thus, the overflow 30 formed in the 1 st portion 26 of the adhesive tape 14 is temporarily secured to the 2 nd portion 24 of the release sheet 16 at the locations indicated by the symbols 50, 52, 54.

As a means of temporary fastening, thermal bonding is effective. That is, when heat is applied from the outer surface side of the release sheet 16, the thermoplastic material constituting the innermost layer of the release sheet 16 melts, adheres to the support 18 of the adhesive tape 14, and finally, it is cured, so that the overflow portion 30 of the adhesive tape 14 is temporarily fastened to the 2 nd portion 24 of the release sheet 16. In particular, when the support 18 of the adhesive tape 14 is made of woven or knitted fabric, the temporary fastening effect is further improved by the penetration of the molten thermoplastic material.

Although the temporary tightening portions 50, 52, and 54 are disposed at positions, it is preferable that the temporary tightening portions 52 and 54 be formed not only on a line along the 1 st seal portion 38 but also on lines along the 2 nd seal portion 40 and the 3 rd seal portion 42 as shown in fig. 1. Accordingly, even when the 1 st and 2 nd portions 22 and 24 of the release sheet 16 are pulled apart from each other in the lateral direction, the effect of temporary fastening can be ensured. The lines on which the temporary tightening portions 50, 52, 54 are arranged are not limited to straight lines, and may be curved lines, or may be arranged on multiple lines. Further, the state along the 1 st, 2 nd, and 3 rd seal parts 38, 40, and 42 may be a zigzag, random, or zigzag arrangement.

However, if the adhesive force is excessively increased by the temporary fastening portions 50, 52, and 54, there is a possibility that the adhesive tape 14 is not easily separated from the release sheet 16 when the adhesive tape is attached to the attachment site. Therefore, the adhesion force of the protruding portion 30 of the adhesive tape 14 to the release sheet 16 is preferably higher than the adhesion force (adhesive force) of the adhesive layer 12 to the release sheet 16. That is, the adhesion force of the support 18 to the release sheet 16, the adhesion force (adhesive force) of the adhesive layer 12 of the adhesive tape 14 to the adhered portion, and the adhesion force of the adhesive layer 12 of the adhesive tape 14 to the release sheet 16 via the temporary fastening portions 50, 52, 54 are in the following relationship.

Adhesion of adhesive layer 12 to the site of attachment

Adhesion of support 18 to release sheet 16 via temporary fastening portions 50, 52, 54

Adhesion of adhesive layer 12 to release sheet 16

In the case where the temporary fastening portions 50, 52, and 54 are formed in a continuous band shape, it is considered that the amount of the thermoplastic material in the release sheet 16 impregnated into the woven fabric of the support 18 of the adhesive tape 14 is too large, and it is considered that the above-described relationship is difficult to obtain. Therefore, in the present invention, as shown by reference numerals 50, 52, and 54 in fig. 1 to 3, the temporary fastening portions 50, 52, and 54 are discontinuously formed, and the adhesive force of the temporary fastening portions 50, 52, and 54 can be easily adjusted by adjusting the number and size of the temporary fastening portions 50, 52, and 54. Accordingly, the efficiency of manufacturing the adhesive tape packaging bag 10 is further improved, and a certain quality can be ensured in terms of the operational effect thereof. The shape of the temporary tightening portions 50, 52, 54 is not limited to the rectangular shape shown in fig. 1, and various shapes such as a triangular shape shown in fig. 4 (a) and an elliptical shape shown in fig. 4 (b) are conceivable.

Further, the release sheet 16 preferably has an adhesion force suppressing member 55 for suppressing adhesion force between the adhesive layer 12 of the adhesive tape 14 and the release sheet 16. As the adhesion force suppressing member 55, an adhesion force suppressing member obtained by applying a peeling treatment to the innermost layer of the release sheet 16 may be considered. The peeling treatment includes a method of using a peeling agent, and a method of easily performing physical peeling such as embossing and sanding. As the release agent, any of a silicon-based release agent, an alkyl-based release agent, a condensed wax-based release agent, and the like can be used, and among them, so-called silicon treatment using a silicon-based release agent is preferable. This is because silicon processing has an advantage that it can be performed relatively easily and inexpensively. By performing the silicon treatment, when the release sheet 16 is opened in the use of the adhesive tape packaging bag 10, the adhesive layer 12 is easily separated from the release sheet 16 in cooperation with the temporary fastening portions 50, 52, 54, and the adhesive layer 12 is exposed, and the adhesion to the adhesion portion is further facilitated. Further, as described above, the adhesion inhibiting member 55 may be provided on the entire adhesive layer 12 of the adhesive tape 14, but may be provided so as to cover only the adhesive layer 12 of the 1 st part 26 of the adhesive tape.

Next, the operation of the pressure-sensitive adhesive tape packaging bag 10 according to the present embodiment will be described with reference to fig. 5 and 6.

Fig. 5 (a) is a perspective view showing the pressure-sensitive adhesive tape packaging bag 10 according to the present embodiment. From this state, the user grasps the pinch edge 44 (fingers not shown) of the release sheet 16 and begins to pull the 1 st and 2 nd portions 22, 24 of the release sheet 16 apart in the direction of arrow a. Generally, the adhesive tape package 10 is often opened from the end portion. Therefore, as shown in fig. 5 (a), when the opening is started from the corner portion of the packaging bag 10, the force is concentrated on the corner portions 46 of the horizontal seal portion 40 and the vertical seal portion 38, and the breakage of the seal portions 38, 40 is easily started. When the breakage starts at the seal portions 38 and 40, the breakage propagates to other portions from the breakage start point even without applying a large force, and the entire seal portions 38, 40, and 42 are broken, so that the adhesive tape packaging bag 10 is in the state of fig. 5 (b). As described above, due to the temporary fastening portions 50, 52, and 54, the 1 st part 26 of the adhesive tape 14 is held on the 2 nd part 24 side of the release sheet 16 at a time, and thus the adhesive layer 12 of the 1 st part 26 of the adhesive tape 14 is exposed.

Fig. 6 (a) to (d) show the adhesive tape of the present invention used as an adhesive agent for medical use, cosmetic use, and the like, but the adhesive tape can be applied by the same method even when used for other applications. First, the opened pressure-sensitive adhesive tape packaging bag 10 is held with one hand, and as shown in fig. 6 (a) and (b), the sticking portion or the vicinity of the sticking portion is touched. Next, the 1 st portion 20 of the release sheet 16 is gripped, and the release sheet 16 is pulled along the skin in the longitudinal direction thereof and in a direction away from the adhesive tape 14 as shown in fig. 6 (c). As the release sheet 16 is pulled, the 2 nd part 28 of the adhesive tape 14 is peeled off from the release sheet 16 and stuck to the sticking portion. In particular, since the release sheet 16 is stuck while being pulled, it can be stuck without causing wrinkles in the adhesive tape 14. Fig. 6 (d) shows a state in which the entire adhesive tape 14 is completely attached to the attachment portion.

In the adhesive tape packaging bag 10 of the present embodiment, since the thumb of the hand on which the adhesive tape 14 is placed can be attached to the 1 st part 20 of the release sheet 16 peeled off from the adhesive layer 12, the hand can be firmly held. Therefore, the risk of the adhesive tape 14 falling down when touching the attachment site is reduced, and the concern that the adhesive tape 14 rattles or sags in an unexpected direction due to gravity when attaching is reduced, so that the attachment site can be attached while being carefully aimed at the target. Even if the attachment portion is a back or the like that is difficult for one person to attach, it can be easily attached with one hand.

In the case of manufacturing such an adhesive tape packaging bag 10, when the adhesive tape 14 and the release sheet 16 cut into a predetermined size are prepared and manufactured one by one in the manner shown in fig. 2, the manufacturing efficiency is low, and it is extremely difficult to cope with so-called mass production. Accordingly, the present invention provides a method and an apparatus for manufacturing a splicing tape packaging bag, which can improve the manufacturing efficiency and is suitable for mass production.

Fig. 7 and 8 are views schematically showing a method of manufacturing the pressure-sensitive adhesive tape packaging bag 10 according to the present invention. In fig. 7, reference numeral 200 denotes an adhesive tape roll supply device for holding the adhesive tape blank roll 100, and the adhesive tape roll 114 is wound and discharged from the adhesive tape roll supply device 200. The adhesive tape blank roll 100 is a roll-shaped adhesive tape blank roll in which a long and narrow adhesive tape base material, so-called adhesive tape roll 114, is wound, and the adhesive tape roll 114 is cut in the longitudinal and transverse directions, whereby the adhesive tape 14 having a product size can be formed. Further, it is preferable to use an adhesive tape roll 114 composed of the support 18 of the adhesive tape 14, a part to be the adhesive layer 12, and the liner 104 detachably attached to the adhesive layer 12.

The adhesive tape web 114 paid out from the adhesive tape web supply device 200 is conveyed to the liner peeling device 204 via the tension adjusting device 202. The liner peeling apparatus 204 is a well-known liner peeling apparatus that peels the liner 104 from the adhesive tape web 114 fed thereto. In this embodiment, the linerless adhesive tape web 114 is led out from the liner peeling apparatus 204 with the adhesive layer 12 on the lower side.

Further, as the adhesive tape roll 114, an adhesive tape roll without the liner 104 or an adhesive tape roll constituted only by a portion to be the support 18 may be considered. In the case of an adhesive tape web 114 without a liner 104, the liner release apparatus 204 is of course not required. In the case of the adhesive tape web 114 configured only by the portion to be the support 18, a dispenser (not shown) is disposed downstream of the adhesive tape web supply device 200, and the adhesive is dispensed on one surface of the web to be the support, which is unwound from the adhesive tape web. The dispensing device is also known from the prior art.

A cutting device 206 for cutting the adhesive tape web 114 in the feeding direction and the transverse direction (horizontal direction orthogonal to the feeding direction of the adhesive tape web 114) is disposed downstream of the liner peeling device 204. Various types of cutting devices 206 are conceivable, but in the illustrated embodiment, a rotary cutter constituted by a die cutting roller 208 having a blade and a support roller 210 that rolls in contact with the die cutting roller 208 is used. When the adhesive tape web 114 is fed between the die cutting roller 208 and the support roller 210, the adhesive tape 14 of the product size is die-cut from the adhesive tape web 114 and fed downstream.

Fig. 9 is a diagram showing a portion of the adhesive tape web 114 which is punched out by a broken line, and the hatched portion is discharged as unnecessary scrap. As will be understood from fig. 9, in the present embodiment, the cut adhesive tape 14 is fed from the cutting device 206 in 2 lines in the feeding direction (arrow direction in fig. 9) of the adhesive tape web 114.

In the cutting device 206 of the present embodiment, the die cutting roller 208 is disposed on the lower side, and the support roller 210 is disposed on the upper side. Thus, the adhesive layer of the adhesive tape web 114 is in contact with the die cutting drum 208. Therefore, in order to easily peel the die-cut adhesive tape 14 off from the die cutting roll 208, a known releasing treatment is performed on the surface of the die cutting roll 208, so that the adhesion between the die cutting roll 208 and the adhesive tape web 114 is extremely small. The support roller 210 is formed of a cylindrical body having a plurality of small holes formed therein, and is configured to be capable of attracting the adhesive tape web 114 in contact with the surface by sucking air from inside. Therefore, the die-cut adhesive tape 14 can be surely peeled off from the die-cutting cylinder 208. The adhesive tape 14 sucked by the support roller 210 is guided upward from the non-sucked feeding portion of the cutting device 206 in accordance with the rotation of the support roller 210.

Each of the adhesive tapes 14 fed from the cutting device 206 is fed to a feeding position indicated by reference numeral 212 in fig. 7, and is stuck to a long and narrow release sheet base material serving as a release sheet 16, so-called release sheet web 116. However, immediately after the cutting by the cutting device 206, the interval between the adjacent adhesive tapes 14 is extremely narrow, and when the adhesive tapes are placed on the release sheet web 116 in this state, there is no margin for heat sealing in the final manufacturing process of the packaging bag 10.

Therefore, in the present embodiment, a separating and transferring device 214 that transfers the adhesive tapes 14 adjacent to each other in the front, rear, left, and right directions while separating them in the feeding direction and the lateral direction (horizontal direction orthogonal to the feeding direction) and (while widening the interval) is disposed between the cutting device 206 and the feeding position 212.

As described above, the separating and transferring device transfers the adhesive tapes 14 while expanding the interval between the adjacent adhesive tapes, and thus, various separating and transferring devices such as a separating and transferring device including a plurality of robot devices that move the adhesive tapes 14 to desired positions by suction type robot arms, a separating and transferring device including a belt conveyor device, and the like are conceivable.

In the separation and transfer device using the robot device, since the movement of the arm of the robot device is mainly in the horizontal direction, for example, when the adhesive tape 14 is fed in a plurality of rows of 2 or more, it is considered that the arrangement layout is large in order to prevent interference between the robot arms.

As a separating and transferring device including a belt conveyor device, as shown in fig. 10, a separating and transferring device in which a plurality of belt conveyor devices 150 are arranged so as to radially spread out may be considered. Each belt conveyor device 150 has a plurality of belt conveyors 152, 154, 156 arranged in a straight line, and the transfer speed of the belt conveyors 152, 154, 156 in each belt conveyor device 150 is higher on the downstream side. In this configuration, the interval in the feeding direction can be expanded while the interval in the lateral direction is expanded. In the separation and transfer device constituted by the belt conveyor, it is also considered that the auxiliary device becomes complicated in the case of a stable spreading operation such as taking out of the adhesive tape 14 to the conveyor and transfer between conveyors.

Fig. 11 shows a suitable separating and transferring apparatus 214 configured to circulate and drive a holding base 216 that is in contact with the surface (surface opposite to the adhesive layer 12) of the support 18 of the adhesive tape 14 and holds the same, and to gradually expand the interval between the front and rear holding bases 216 while moving the holding base 216, and to expand the interval between the left and right holding bases 216. The separating and transferring device is small in size and has an excellent separating and transferring efficiency.

More specifically, the separating and transferring device 214 includes a 1 st circulation chain unit 218 disposed on the upstream side (the side closer to the cutting device 206) of the manufacturing line and a 2 nd circulation chain unit 220 disposed on the downstream side (the side away from the cutting device 206). The circulation paths of the chains 224 and 226 are constituted by vertical paths on the upstream side and the downstream side and horizontal paths above and below. Pins 228 are provided to protrude at a constant pitch from the outer surfaces of the right and left link plates constituting the chains 224 and 226. For example, and without limitation, the pitch of the pins 228 in the 1 st endless chain unit 218 is 100mm, and the pitch of the pins 228 in the 2 nd endless chain unit 220 is 130 mm.

Further, a guide plate for guiding the holding base 216 is provided between the left and right sprockets 222/223. The guide plate defines a circulation path including a vertical ascending path 232 adjacent to cutting device 206, an upper ascending path 234 extending horizontally in the flow direction of the manufacturing line via an arc-shaped path along the outer shape of sprocket 222-1, a vertical descending path 236 extending downward via an arc-shaped path along the outer shape of sprocket 223-1, a lower returning path 238 extending horizontally in the direction opposite to the flow direction of the manufacturing line via an arc-shaped path along the outer shape of sprocket 223-2, and an arc-shaped and straight path along the outer shape of sprocket 222/223 connecting vertical ascending paths 232 via an arc-shaped path along the outer shape of sprocket 222-4.

2 guide grooves for guiding the holding base 216 to the left and right are formed in the guide plate. In the present embodiment, in the upper outward path 234, 2 guide grooves are gradually opened at intervals as they are separated from the cutting device 206. In the lower return path 238, the 2 guide grooves are gradually narrowed as they approach the guillotine device 206. In the vertical ascending path 232 and the vertical descending path 236, the interval between the guide grooves is substantially constant.

Feed levers 242 and 244 are disposed along the upper outward path 234 and the lower return path 238 on each of the left and right sides of the guide plate, respectively. Spiral feed grooves are formed in the feed bars 242 and 244. The pitch of the feed grooves becomes gradually larger in the flow direction to the manufacturing line, and the 1 st endless chain unit 218 side and the pitch of the pins 228 in the endless chain unit 218 are substantially equal, and the 2 nd endless chain unit 220 side and the pitch of the pins 228 in the endless chain unit 220 are substantially equal.

The holding base 216 for holding the adhesive tape 14 is supported by a support block 248 slidably in the right and left lateral directions. In the present embodiment, 2 holding tables 216 are supported on 1 support block 248. From the holding table 216, 1 bar extends, whereby the holding table 216 can slide to the left and right along the rail 254 on the supporting block 248. In a state where the support block 248 is disposed on the guide plate, the leading ends of the guide rods are slidably fitted into the corresponding guide grooves.

Further, inverted U-shaped brackets 258 are fixed to lower surfaces of both end portions of the support block 248. Grooves are formed in the respective leg portions of the bracket 258, and the pins 228 on the chains 224 and 226 of the endless chain units 218 and 220 are fitted into the grooves. Therefore, when the endless chain units 218 and 220 are driven to circulate the chains 224 and 226, the support block 248 moves together with the chains.

Further, roller bearings 262 are provided on the left and right end surfaces of the support block 248. The roller bearing 262 is fitted into the feed grooves of the feed levers 242, 244 in a state where the support block 248 is set on the upper outward path 234 or the lower return path 238 of the guide plate. When the feed levers 242 and 244 are rotated in a state where the roller bearings 262 are fitted into the feed grooves of the feed levers 242 and 244, the support block 248 moves in the flow direction of the manufacturing line or in the opposite direction to the flow direction according to the rotation direction.

In such a configuration, a plurality of support blocks 248 are positioned on the guide plate as shown in FIG. 11. In the vertical ascending path 232 of the guide plate, the pitch of the pins 228 in the 1 st endless chain unit 218 is narrow, so that the distance between the front and rear support blocks 248 in the circulating direction is narrow, and the holding base 216 supported thereon is in a state of being in contact with the adjacent holding base 216 in the circulating direction or in a state of having a very small gap. In the vertical descending path 236 of the guide plate, the distance between the guide grooves is maximized, and therefore, the left and right holding bases 216 are largely separated from each other.

In this state, the separating and transferring device 214 is activated, and the support block 248 positioned on the vertical ascending path 232 of the guide plate ascends in accordance with the movement of the pin 228 of the chain 224 of the 1 st endless chain unit 218, and finally, moves to the upper outward path 234 of the guide plate. Then, the pin 228 of the 1 st circulating chain unit 218 fitted into the groove of the bracket 258 of the support block 248 is turned downward, and therefore the bracket 258 is disengaged from the pin 228. At this time, the roller bearings 262 at the left and right ends of the support block 248 enter the feed groove of the upper feed lever 242.

The feed lever 242 is rotationally driven in a predetermined direction, and the support block 248 moves in the flow direction of the manufacturing line in the upper outward path 234. At this time, since the pitch of the feed groove gradually increases, the traveling speed of the support block 248 increases, and the interval between the front and rear support blocks 248 expands. In addition, since the 2 guide grooves of the guide plate are also gradually expanded, the 2 holding tables 216 are moved in a direction away from each other on the supporting block 248.

When the support block 248 reaches the tip end (end on the side away from the cutting device 206) of the feed bar 242, the roller bearing 262 of the support block 248 comes out of the feed groove. At this time, the pins 228 in the chain 226 of the 2 nd circulation chain unit 220 are fitted in the grooves of the brackets 258 of the support block 248, and the support block 248 moves rightward and downward in fig. 11 by the driving force of the 2 nd circulation chain unit 220.

The operation of the support block 248 when returning from the vertical descending path 236 to the vertical ascending path 232 through the lower return path 238 is the same as that in the case of returning from the vertical ascending path 232 to the vertical descending path 236 through the upper outward path 234. Therefore, although the detailed description thereof is omitted, it is easily understood that the interval between the front and rear of the support block 248 is narrowed and the interval between the 2 holding bases 216 on the support block 248 is also narrowed in the lower return path 238.

The movement of the support block 248 is performed by the 1 st and 2 nd endless chain units 218 and 220 and the upper and lower feed bars 242 and 244, but the separation and transfer control of the adhesive tape 14 can be performed with high accuracy by driving the 1 st and 2 nd endless chain units 218 and 220 and the upper and lower feed bars 242 and 244 by an appropriate transmission system at the timing of the transfer from the endless chain units 218 and 220 to the feed bars 242 and 244 and at the timing of the transfer from the feed bars 242 and 244 to the endless chain units 220 and 218.

The separating and transferring device 214 is disposed adjacent to the cutting device 206. More specifically, the separating/transferring device 214 is disposed such that the surface of the holding base 216 on the supporting block 248 is in contact with the outer surface of the supporting roller 210 of the cutting device 206 in a state where the supporting block 248 is positioned at the lowermost portion of the vertical ascending path 232 of the separating/transferring device 214. Accordingly, the adhesive tape 14 cut from the adhesive tape roll material 114 and fed out while being held by the support roller 210 is sequentially transferred to the holding table 216.

The support roller 210 is vacuum-sucked from the point where the adhesive tape 14 enters to the point where it is transferred to the holding base 216, and air blowing is performed to easily move the adhesive tape 14 to the holding base 216. In the present embodiment, a plurality of small holes are formed in the surface of the holding base 216, and a vacuum suction force is generated. Various members are considered as members for applying a vacuum suction force to the holding base 216. Although not shown, for example, a vacuum port is formed in at least one end of the support block 248, and this vacuum port is brought into contact with a vacuum suction nozzle provided along the guide plate 230 when the support block 248 is in the vertical ascending path 232. Further, if the vacuum port is communicated with the internal space of the holding base 216 by a hose or the like, the vacuum suction force can be generated only when the support block 248 is in the vertical ascending path 232, and the adhesive tape 14 can be received from the support roller 210 of the cutting device 206.

Since the adhesive layer 12 supporting the adhesive tape 14 on the roller 210 is exposed, the adhesive layer 12 comes into contact with the holding base 216. Therefore, it is preferable to perform appropriate surface treatment on the surface of the holding base 216 in order to easily peel the adhesive tape 14 from the holding base 216 when the adhesive tape 14 is transferred to a subsequent process.

As understood from the operation of the separating and transferring device 214, the adhesive tapes 14 transferred to the holding base 216 are fed to the joining device 264 for joining the adhesive tapes 14 to the release sheet web 116 while the interval between the adjacent adhesive tapes in the front, rear, left, and right directions is widened in the upper outward path 234 and the state is maintained. Fig. 12 shows a transfer state of the adhesive tape 14 in the upper forward path 234.

The pasting device 264 has a vacuum suction type belt conveyer 266. The belt 268 of the belt conveyor 266 is disposed such that a portion thereof is in contact with the surface of the holding table 216 located at the vertically lowered portion 236 of the separator-transfer device 214. Therefore, the belt 268 contacts the support 18 of the adhesive tape 14 held on the holding base 216. Since the belt conveyer 266 is of a vacuum suction type, the adhesive tape 14 connected to the belt 268 moves from the holding table 216 to the belt 268. At this time, the gap between the adhesive tapes 14 adjacent to each other in the front, rear, left, and right directions is also maintained on the belt 268, and the adhesive layer 12 of the adhesive tape 14 is exposed downward.

The pasting device 264 has a pressure roller 272 that contacts a roller indicated by a reference numeral 270 of the belt conveyer 266. The release sheet web 116 serving as the release sheet 16 is conveyed between the pressure roller 272 and the roller 270. Therefore, the adhesive tape 14 fed between the pressure roller 272 and the roller 270 (feeding position) is stuck on the upper surface of the release sheet web 116, and in this state, is further fed downstream together with the release sheet web 116.

The release sheet web 116 is held by the release sheet web supply device in a state of being wound in a roll shape, and is unwound therefrom, although not shown. It is preferable that the surface of the release sheet web 116 to which the adhesive tape 14 is applied is subjected to a peeling treatment in advance.

The release sheet web 116 to which the adhesive tape 14 is attached is then cut at the center line in the longitudinal direction at the slitter 274 as shown in fig. 8 (a). 1 row of adhesive tapes 14 is arranged in parallel for each of 2 release sheet webs 116a and 116b obtained by slitting, and a predetermined gap is formed between the front and rear adhesive tapes 14.

Thereafter, at a position indicated by reference numeral 276, the 2 cut release sheet webs 116a and 116b are pulled in opposite directions, respectively, and a predetermined interval is formed between the 2 release sheet webs 116a and 116 b. This interval is an interval in consideration of installation gaps of the bending device 278, the heat sealing device 280, and the temporary fastening device 282 at the subsequent stage. That is, the interval between the 2 release sheet webs 116a and 116b is determined appropriately according to the installation position and the type of the subsequent devices, and it is not necessary to expand the interval in some cases.

The slit release sheet webs 116a and 116b are continuously fed to the bending device 278 via the buffer device 284. In the present embodiment, the closing operation mechanism for heat sealing by the heat sealing device 280 and temporary fastening by the temporary fastening device 282 is of a shuttle box type.

As shown in fig. 13, the folding device 278 includes a base 286 having a smooth surface on which the release sheet webs 116a and 116b are placed, a disk-shaped pressing roller 288 which is in contact with the surface of the base 286 and has a rotation axis horizontal and is disposed along the feeding direction of the release sheet webs 116a and 116b, and 1 pair of pressing rollers 290 which are disposed downstream of the pressing roller 288 and have rotation axes perpendicular to the feeding direction of the release sheet webs 116a and 116b and are in contact with each other and roll. The pressing roller 288 is brought into contact with the substantially longitudinal center line of the release sheet webs 116a and 116b transferred on the base 286, and promotes the release sheet webs 116a and 116b and the adhesive tape 14 stuck thereto to be folded in two from the contact point, and then to be completely folded in two by the pressing roller 290.

In the folding device 278, both sides of the release sheet web 116a, 116b are raised. The amount of offset generation can be suppressed by erecting both sides so that the amount of rotation of each side of the release sheet web 116a, 116b is only 90 degrees.

Further, the pressing roller 288 is preferably positioned in contact with the release sheet webs 116a and 116b at a position slightly shifted from the longitudinal center lines of the release sheet webs 116a and 116 b. Thus, as shown in fig. 1, the edge 20 of the 1 st part 22 and the edge 20 of the 2 nd part 24 of the release sheet 16 of the adhesive tape packaging bag 10 as a final product are slightly shifted from each other. The staggered portions of the edge 20 provide the effect of facilitating the hooking of a finger and the easy separation of the 1 st part 22 and the 2 nd part 24.

The release sheet webs 116a and 116b folded in two by the folding device 278 are fed to the heat sealing device 280. As the heat sealing device 280, a conventionally known heat sealing device having a structure not shown in detail in the drawings can be used, but in the present embodiment, a shuttle box type heat sealing device having 1 pair of heating heads which can be brought into contact with and separated from each other is used. As is known, the heating head has projections formed at portions corresponding to positions where the heating head is brought into contact with the release sheet webs 116a and 116b and heat-sealed. In the present embodiment, the heating head is configured to heat-seal a portion corresponding to the amount of 4 sheets of the final product.

In the present embodiment, the portions shown by hatching in fig. 14 are heat-sealed. The space surrounded by the 3 sealing portions 38, 40, 42 and the folded portions of the release sheet webs 116a, 116b becomes a housing space for the adhesive tape 14. Note here that in the present embodiment, the number of seal portions formed between adjacent adhesive tapes 14 is 2 as indicated by reference numerals 40 and 42. Of course, the number of the seal portions of the symbols 40 and 42 may be 1. However, as shown in fig. 14, when 2 heat-sealed portions are formed between adjacent adhesive tapes 14, the width of the sealed portions 40 and 42 in the final product can be maintained constant even if the cutting positions are slightly shifted. That is, as indicated by a two-dot chain line A, B, C in fig. 14, even if the cutting position changes, the width of the seal portions 40 and 42 is not affected. By setting the width of the seal portions 40 and 42 to be constant in this manner, the force applied to the seal portions 40 and 42 at the time of unsealing can be set to be constant.

The seal 38 formed parallel to the longitudinal direction of the release sheet webs 116a and 116b is largely separated from the free edges 120 of the release sheet webs 116a and 116b in the longitudinal direction. Accordingly, in the adhesive tape packaging bag 10 of the final product shown in fig. 1, the portion from the sealing portion 38 to the outside becomes the pinch-off portion 44, and it is easy to pinch with fingers and open the bag. Further, as described above, by slightly shifting the edges 20 of the 1 st part 22 and the 2 nd part 24 of the release sheet 16 from each other, the overlapped portion of the release sheet 16 constituting the nip portion 44 is easily separated, and the opening is further easily performed.

The sealing portions 38, 40, and 42 are linear, and substantially right-angled corner portions 46 and 48 are formed at the intersections thereof. As described above, in the final product 10, the seal portions 40 and 42 are also slightly separated from the corresponding edges as shown in fig. 1, and therefore the corner portions 46 and 48 are also separated from the respective edges 20, 34, and 36. By separating the corners 46, 48 from the edges 20, 34, 36, the force is concentrated at the portions, and the opening is facilitated.

In addition, as the heat seal, a so-called easy-tear technique is used. The term "easy-to-tear" means that the container or package is easily peeled off when sealed and opened by heat sealing, as described in the technical field classification patent map obtained from the office homepage and the general 21 "stick" page 335 (www.jpo.go.jp/shiryou/s _ sonota/map/ippan21/4/4-3-1. htm). Specifically, there are no particular restrictions on the type of cohesive peeling in which the adhesive layer itself between the 1 st part 22 and the 2 nd part 24 of the easily peelable sheet 16 is broken and peeled off, the type of interlayer peeling in which the adhesive layer is peeled off from the adhesive layer at the time of opening, the type of interfacial peeling using an easily adhesive resin such as EVA, or the like, and various types such as the type of interlayer peeling in which the 1 st part 22 or the 2 nd part 24 is peeled off from the adhesive layer, but when a sheet material in which a polyethylene layer is disposed on the surface is used as the peelable sheet 16, it is preferable to use, for example, an adhesive layer having a 2-layer structure composed of a resin layer mainly composed of high-density polyethylene and an easily peelable resin layer in which a resin causing cohesive breakage is added to low-density polyethylene.

In the present embodiment, the heat sealing device 280 is formed in a shuttle box type. That is, the release sheet webs 116a and 116b are continuously moved, and the release sheet webs 116a and 116b are sandwiched between 1 pair of heating heads, and when the heat sealing is completed, the release sheet webs are sent to the next step. However, a continuous heat sealing apparatus including 1 pair of heat sealing rollers rolling in contact with each other may be used.

The release sheet webs 116a and 116b heat-sealed by the heat sealing device 280 are further continuously fed downstream and sent to the temporary fastening device 282. In the present embodiment, 4 temporary fastening devices 282 are provided for each of the release sheet webs 116a and 116b, and temporary fastening to the release sheet webs 116a and 116b is performed with respect to 4 sheets of the adhesive tapes 14. The temporary tightening device 282 has basically the same configuration as a known shuttle box type heat sealing device, and includes 1 pair of heating heads which can be brought into contact with and separated from each other. In the present embodiment, as shown in fig. 1, the heating head is configured such that the temporary tightening portions 50, 52, 54 are formed in a dot shape.

In the temporary tightening device 282 having this configuration, when the continuously flowing release sheet webs 116a and 116b flow to predetermined positions, the pair of heating heads 1 approach each other in synchronization with the flow rate of the release sheet webs, and sandwich the release sheet webs 116a and 116 b. Then, by applying heat to the surfaces of the release sheet webs 116a, 116b for a certain period of time, the thermoplastic material in the innermost layer of the release sheet webs 116a, 116b melts and adheres to the support 18 of the adhesive tape 14, and the overflow portion 30 of the adhesive tape 14 is temporarily fastened to the release sheet webs.

The temporary fastening may be performed simultaneously with the heat sealing by providing a protrusion for forming a temporary fastening portion on the heating head of the heat sealing device 280. It is also easy to understand that instead of the shuttle box type temporary tightening device, a continuous type temporary tightening device including 1 pair of heating rollers rolling in contact with each other can be used.

After the temporary fastening, the release sheet webs 116a and 116b are cut by a cutting device denoted by reference numeral 292 in fig. 8, and the adhesive tape packaging bag 10 as a final product shown in fig. 1 is completed. Thereafter, the adhesive tape packaging bag 10 is subjected to product inspection, packaging treatment, and the like.

Although the preferred embodiments of the present invention have been described in detail, it is needless to say that the present invention is not limited to the above embodiments.

For example, although the adhesive tape 14 is fed in 2 lines after the adhesive tape web 114 is cut in the above embodiment, it is also conceivable to feed the adhesive tape in a single line. In this case, the separating and transferring device 214 may be configured such that the number of the holding bases 216 on the support block 248 is only 1, and the interval between the front and rear of the support block 248 is expanded without moving in the lateral direction. Since there is no case where the release sheet web 116 is also cut, the slitter 274 is not necessary.

It is also conceivable to cut the adhesive tape web 114 into 3 pieces and feed the adhesive tapes 14 in 3 rows. In this case, the separating and transferring apparatus 214 is provided with 3 holding tables 216 on 1 supporting block 248, and 3 guide grooves for guiding the 3 holding tables 216 are provided. When the adhesive tape 14 is fed in 4 rows or more, the same change is applied to the separating and transferring device 214.

The adhesive tape 14 is not limited to an adhesive tape obtained by cutting a web 114 of adhesive tape unwound from a web, and may be an adhesive tape obtained by cutting a short web, so-called blade-shaped adhesive tape base material 115, as shown in fig. 15.

In the above embodiment, the adhesive tape 14 of the product size is cut out after the liner 104 is peeled from the adhesive tape web 114 of the adhesive tape blank roll 100, but a method may be considered in which the adhesive tape web 114 is half-cut before the liner 104 is peeled as schematically shown in fig. 16, and the adhesive tape 14 as a product is left on the liner 104. In this case, since the adhesive tape 14 can be transferred through the liner 104, if the adhesive tape 14 is half-cut at a predetermined interval in advance, the adhesive tape 14 is fed at a predetermined feeding position 312 while peeling the liner 104, and the adhesive tapes 14 are sequentially adhered to the release sheet web 116 flowing at the same speed at the feeding position 312 at a predetermined interval. Therefore, in this case, the aforementioned separating and transferring device 214 is not required.

In the case where half-cutting is performed without providing a space between the adhesive tapes 14, the adhesive tapes 14 can be sequentially adhered to the release sheet web 116 at a predetermined space by appropriately setting the feeding speed of the adhesive tapes 14 or the timing of feeding to the feeding position 312 and the feeding speed of the release sheet web 116 or the timing of feeding and stopping.

Description of the symbols

10: splicing the adhesive tape packaging bag; 12: an adhesive layer; 14: bonding an adhesive tape; 16: peeling the sheet; 18: a support body; 38. 40, 42: a sealing part; 50. 52, 54: a temporary fastening portion; 55: adhesion inhibition means; 100: bonding a rubber belt blank coil; 104: a liner; 114: a roll material of adhesive tape (adhesive tape base material); 115: bonding the tape base material; 116: a release sheet web (release sheet base); 116a, 116 b: a slit release sheet web; 200: a supply device for adhesive tape web material; 202: a tension adjusting device; 204: a liner peeling device; 206: a cutting device; 208: a die cutting roller; 210: a support roller; 212: a delivery position; 214: a separating and transferring device; 216: a holding stage; 218: 1 st circulating chain unit; 220: a 2 nd circulating chain unit; 224. 226: a chain; 228: a pin; 232: a vertical ascending path; 234: the upper part goes out of the way; 236: vertically descending the road; 238: the lower part is returned; 242. 244: a feed bar; 248: a support block; 254: a track; 258: a bracket; 262: a roller bearing; 264: a sticking device; 266: a belt conveyor; 268: a belt; 270: a roller; 272: a pressure roller; 274: a slitter; 278: a flexing device; 280: a heat sealing device; 282: a temporary fastening device; 284: a buffer device; 286: a base; 288: pressing the roller; 290: a pressure roller; 292: a cutting device; 312: and feeding into a position.

Claims (8)

1. A method for manufacturing a pressure-sensitive adhesive tape packaging bag for housing a pressure-sensitive adhesive tape having a support and an adhesive layer provided on one surface of the support, that is, a method for manufacturing a pressure-sensitive adhesive tape packaging bag comprising a release sheet to which the adhesive layer of the pressure-sensitive adhesive tape is releasably adhered,

which is characterized by comprising

A step of feeding the release sheet base material to be the release sheet to a predetermined feeding position,

A step of feeding a plurality of adhesive tapes in 1 line in sequence to the release sheet base material at the feeding position, forming a predetermined gap between the adjacent adhesive tapes in the front and rear direction of the feeding direction, and bonding the adhesive tapes to the release sheet base material,

A step of folding the release sheet base material in two together with the adhesive tape,

Sealing a predetermined portion of the release sheet base material to form a plurality of storage spaces for storing 1 sheet of the adhesive tape on the release sheet base material folded in two,

A step of temporarily fastening a part of each of the release sheet base material and the adhesive tape, and

cutting the release sheet base material to form the adhesive tape packaging bag,

the step of adhering the adhesive tape to the release sheet base material comprises

An auxiliary step of cutting the adhesive tape base material to form 1 line of the adhesive tape, and

and an auxiliary step of separating the adjacent adhesive tapes from each other, expanding the interval between the adjacent adhesive tapes and transferring the adhesive tapes to the feeding position.

2. The method of manufacturing a splicing tape packaging bag according to claim 1, wherein said sealing is heat sealing.

3. The method of manufacturing a package of splicing tape according to claim 1 or 2, wherein said temporary fastening is temporary fastening by thermal bonding.

4. A method of manufacturing a package bag for splicing tape according to claim 3, wherein in said step of sealing a predetermined portion of said release sheet base material, 2 sealing portions are formed at regular intervals between adjacent ones of said housing spaces,

in the step of cutting the release sheet base material, the 2 sealing portions are cut.

5. A method for manufacturing a pressure-sensitive adhesive tape packaging bag for housing a pressure-sensitive adhesive tape having a support and an adhesive layer provided on one surface of the support, that is, a method for manufacturing a pressure-sensitive adhesive tape packaging bag comprising a release sheet to which the adhesive layer of the pressure-sensitive adhesive tape is releasably adhered,

which is characterized by comprising

A step of feeding the release sheet base material to be the release sheet to a predetermined feeding position,

A step of sequentially feeding a plurality of adhesive tapes in a plurality of rows at the feeding position with respect to the release sheet base material, and bonding the adhesive tapes to the release sheet base material while forming a predetermined gap between the adhesive tapes adjacent to each other in the front, rear, left, and right directions in the feeding direction,

A step of cutting the release sheet substrate in the longitudinal direction thereof to form a plurality of release sheet substrates to which 1 line of the adhesive tape is adhered,

A step of folding the cut release sheet base material in two together with the adhesive tape,

Sealing a predetermined portion of the release sheet base material to form a plurality of storage spaces for storing 1 sheet of the adhesive tape on the release sheet base material folded in two,

A step of temporarily fastening a part of each of the release sheet base material and the adhesive tape, and

cutting the release sheet base material to form the adhesive tape packaging bag,

the step of adhering the adhesive tape to the release sheet base material comprises

An auxiliary step of cutting the adhesive tape base material to form a plurality of lines of the adhesive tape, and

and an auxiliary step of separating the adjacent adhesive tapes in front, back, left and right directions from each other, and transferring the adhesive tapes to the feeding position by expanding the interval between the adjacent adhesive tapes.

6. A method of manufacturing a splicing tape packaging bag according to claim 5, wherein said sealing is heat sealing.

7. The method of manufacturing a package of splicing tape according to claim 5 or 6, wherein said temporary fastening is temporary fastening by thermal bonding.

8. The method of manufacturing a package of splicing tape of claim 7,

in the step of sealing the predetermined portion of the release sheet base material, 2 sealing portions are formed at regular intervals between the adjacent housing spaces,

in the step of cutting the release sheet base material, the 2 sealing portions are cut.