HK1188921B - Adhesive tape packaging bag - Google Patents

Description

Packaging bag for adhesive tape

Technical Field

The present invention relates to a packaging bag for packaging an adhesive tape having an adhesive layer on a support.

Background

Conventionally, adhesive tapes having various shapes have been known and used for various applications such as labels, medical applications, cosmetics, decorations, masking applications, electronic industry applications, and others. The adhesive tape for medical use is generally attached to the skin, mucous membrane, or the like in the form of a patch such as a cataplasm, plaster, adhesive plaster, or surgical tape.

Such an adhesive tape generally includes an adhesive tape having a support and an adhesive layer provided on one surface of the support, and a release sheet releasably attached to the adhesive layer. After being manufactured, the adhesive tape is cut into an appropriate size, and is often distributed and sold in a state of being individually packaged in a packaging bag for hygienic and physical properties. In this case, when used, the package bag is broken, the adhesive tape is taken out, and the release sheet is peeled off to expose the adhesive layer, and then the adhesive tape is attached to the attachment site.

A problem often seen in use is that the release sheet is not easily peeled. The release sheet is generally thin and flexible, and therefore, is not easy to handle, and it may take a long time to perform the release. In order to solve this problem, for example, patent documents 1, 2, 3, and 4 have disclosed pressure-sensitive adhesive tapes that seek various kinds of release sheets in terms of ease of release of the release sheet and ease of adhesion of the pressure-sensitive adhesive tape.

From the viewpoint of ease of adhesion of the adhesive tape, both of these release sheets and adhesive tapes are required to be convenient. Although it is convenient, the shape of the release sheet and the packaging bag is not changed in terms of the adhesive tape maintaining the respective shapes, and the release sheet and the packaging bag become garbage after use.

Therefore, conventionally, a packaging bag for an adhesive tape as described in patent document 5 or patent document 6 below has been proposed. In this packaging bag, the adhesive tape is folded in half so that the adhesive layer faces outward, the folded adhesive tape is covered with a release sheet so as to sandwich the release sheet, and the periphery of the release sheet is sealed. In such a configuration, since the release sheet functions as a packaging bag, a packaging bag that has been conventionally required can be omitted.

In addition, a means is provided for temporarily fixing the half portion on the front side of the adhesive tape folded in two to the back side portion of the release sheet so that only half of the adhesive layer is exposed when the front side portion of the release sheet is pulled away from the back side portion in order to open the packaging bag. Thus, when the sheet is opened, the adhesive tape is held in a state of being folded in two on the front side of the release sheet, and the half of the front side of the adhesive layer is exposed, so that the adhesive tape can be easily attached to the attachment portion.

Patent document 1: japanese laid-open patent publication No. 2007-75602

Patent document 2: japanese laid-open patent publication No. 2007-75601

Patent document 3: japanese patent No. 3689807 Specification

Patent document 4: japanese Kokai publication Sho 50-133797

Patent document 5: international publication No. 2010/071104

Patent document 6: international publication No. 2010/073993

Disclosure of Invention

Problems to be solved by the invention

The packaging bags described in patent document 5 and patent document 6 are excellent, but further improvement in terms of use, production, and the like is demanded.

Means for solving the problems

In order to solve the above problems, the present invention is a packaging bag for an adhesive tape, which is rectangular and accommodates an adhesive tape having a support and an adhesive layer provided on one surface of the support, the packaging bag comprising: superposing the 1 st and 2 nd parts of a release sheet releasably attached to the adhesive layer and sealing the periphery thereof, characterized in that: the adhesive tape packaging bag is provided with a 1 st sealing part along a 1 st edge, a 2 nd sealing part along a 2 nd edge adjacent to the 1 st edge and intersecting the 1 st sealing part, and a 3 rd sealing part along a 3 rd edge adjacent to the 1 st edge and intersecting the 1 st sealing part, each of which is separated from the corresponding edge, and the adhesive tape is contained in the adhesive tape packaging bag in a state that the adhesive tape is folded into a 1 st part and a 2 nd part with an adhesive layer facing outward, wherein the 1 st part of the adhesive tape is larger than the 2 nd part of the adhesive tape, has an exposed part exposed from the 2 nd part, and the exposed part is arranged adjacent to the 1 st sealing part and temporarily fixed to a part of the release sheet on the 2 nd part side of the adhesive tape.

In the above configuration, since the 1 st to 3 rd seal portions are disposed apart from the corresponding edges, when the opening is started from the portion between the 1 st seal portion and the 1 st edge, the opening force is easily concentrated on the corner portion where the 1 st seal portion intersects with the 2 nd seal portion or the 3 rd seal portion, and the seal portion can be broken with a light force to open the opening. In the packaging bag described in patent document 5 or patent document 6, although no gap is provided between the 2 nd and 3 rd sealed portions and the corresponding edge, in this case, since the force at the time of opening is dispersed and applied to the straight portion of the 1 st sealed portion, a considerable force is required at the time of opening, but the present invention does not have such a problem.

In order to facilitate opening of the packaging bag, it is preferable to use the gap between the 1 st edge and the 1 st sealed portion as a removal substitute portion.

In addition, by the presence of the temporary fixing portion of the adhesive tape, when opening is performed, the 1 st portion of the adhesive tape is held on the release sheet on the 2 nd portion side, and only half of the adhesive layer is exposed. However, in the structure of the present invention, since the package bag is opened from the intersecting corner portion between the 1 st sealed portion and the 2 nd sealed portion as described above, the package bag cannot be held only by the temporary fixing portion parallel to the 1 st sealed portion as in the package bag described in patent document 5 or patent document 6. Therefore, in the present invention, the temporary fixing portion is performed not only along the 1 st seal portion but also along the 2 nd seal portion and the 3 rd seal portion.

In the present invention, the temporary fixation is performed in a dot-like or discontinuous manner. That is, the small temporary fixing portions are provided at a plurality of locations so that adjacent temporary fixing portions are separated from each other. In the case of considering the attachment to the attachment site, the adhesion force of the support of the adhesive tape to the release sheet via the temporary fixing portion needs to be higher than the adhesion force of the adhesive layer to the release sheet, but in the case of a large area in which the temporary fixing portion is in the form of a continuous tape, the adhesion force to the support of the adhesive tape tends to increase, and the adjustment of the adhesion force also becomes difficult. In contrast, when a plurality of small temporary fixing portions are discontinuously arranged as in the present invention, the adhesion force can be reduced, and the adhesion force can be easily controlled by adjusting the number, size, and the like of the temporary fixing portions.

In the case where the release sheet is made of a thermoplastic material and serves as an inner layer of the adhesive tape packaging bag, the temporary fixing portion can be formed by thermally bonding the thermoplastic material layer to the adhesive tape support. In the case where the 1 st to 3 rd sealing portions are heat sealing portions, heat sealing and heat bonding can be performed continuously or simultaneously, and the effect of significantly improving the manufacturing efficiency can be achieved.

The adhesion-suppressing means for suppressing adhesion of the adhesive layer of the 1 st portion of the adhesive tape to the release sheet is preferably provided to at least a part of the release sheet. This is because the pressure-sensitive adhesive layer can be easily detached from the release sheet to expose the pressure-sensitive adhesive layer when the sheet is opened, and thus the sheet can be easily attached to the attachment portion.

The material, structure and the like of the release sheet are not particularly limited as long as the release sheet can protect the adhesive layer of the adhesive tape until the use, but a structure in which a cellophane film, a plastic film, and an aluminum foil are laminated from the outer layer and then a plastic film is laminated on the inner layer is preferable, and the adhesion force suppressing means is preferably a silicon-treated surface applied to at least a part of the portion of the release sheet to which the adhesive layer of the part 1 of the adhesive tape is attached. Among various adhesion-inhibiting devices, silicon treatment has the advantage of being relatively easy and inexpensive to perform. As another adhesion-suppressing means, embossing and/or sanding may be performed on the portion.

Since the packaging bag of the present invention can be easily attached to the attachment site, the adhesive tape can be effectively used for skin or mucous membrane.

In addition, as the packaging bag of the present invention, there are typically: the three-side-seal packaging type, that is, the 1 st and 2 nd parts of the release sheet are the case where 1 release sheet is folded and 3 sides are sealed; and a so-called four-side seal package type, in which the 1 st part and the 2 nd part of the release sheet are each formed of a separate release sheet and 4 sides are sealed.

Effects of the invention

As described above, according to the present invention, the opening can be easily performed, and the half of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape can be surely exposed, so that the adhesion to the adhesion portion can be easily performed. Further, after half of the release sheet is peeled off, since the adhesive tape is in a state of being supported or reinforced on the remaining portion of the release sheet, the adhesive tape does not come into a state in which the adhesive tapes are adhered to each other and the adhesive tape cannot be used, which also makes the adhesion easy. In addition, in the case of a patch that can attach an adhesive tape to a human body, that is, a plaster, a cataplasm, a plaster, a surgical tape, or an adhesive type thermal pack, even if the attachment site is a back or the like to which the person is not likely to adhere, the adhesive tape can be easily attached with one hand without soiling hands.

In addition, according to the adhesive tape packaging bag of the present invention, since the adhesive force of the temporary fixing portion can be easily adjusted, the manufacturing efficiency can be improved and a stable function can be ensured.

Drawings

Fig. 1 is a front view showing a packaging bag for adhesive tape according to an embodiment of the present invention.

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

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

Fig. 4 (a) and (b) are oblique views showing a method of using the adhesive tape packaging bag of fig. 1.

Fig. 5 (a) to (d) are views showing a situation in which the adhesive tape is attached to the attachment site using the adhesive tape packaging bag of fig. 1.

Fig. 6 (a) and (b) are views each showing another shape of the temporary fixing portion.

Fig. 7 (a) to (c) are perspective views showing a manufacturing process of a packaging bag for adhesive tape of a four-sided sealed package type.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying 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 packaging bag for adhesive tape 10 according to a preferred embodiment of the present invention, and fig. 2 (a) to (c) are oblique views showing a manufacturing process of the packaging bag for adhesive tape 10 of fig. 1. Fig. 3 is a schematic sectional view taken along 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 side thereof and a release sheet 16 for sealing the adhesive tape 14 in a double-folded state. The adhesive tape 14 and the release sheet 16 are rectangular. As is apparent from fig. 1 and 2 (c), the adhesive tape packaging bag 10 is of a so-called three-side-seal packaging type, and 3 sides other than the folded side are sealed after folding 1 release sheet 16.

The adhesive tape packaging bag 10 can be used for labels, medical uses, cosmetics, decorations, masking uses, electronic industry uses, and other various uses. In particular, the packaging bag for an adhesive tape used for medical use, cosmetic use, and the like is used as a packaging bag for a patch to be generally attached to the skin, mucous membrane, and the like, such as a cataplasm, plaster, adhesive plaster, surgical tape, cosmetic pack, and adhesive pack.

As shown in fig. 3, the adhesive tape 14 has a support 18 and an adhesive layer 12 laminated on one surface thereof. The material of the support 18 of the adhesive tape 14 is not particularly limited 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 multi-layer structure, or may have a structure in which a plurality of woven fabrics or nonwoven fabrics made of different materials are laminated, or may have a structure in which a plastic film, a metal foil, or the like is laminated with the woven fabrics or nonwoven fabrics.

The woven or nonwoven fabric used in the present invention is not particularly limited as long as the fibrous material can be processed into a fabric shape and can be used as a support for an adhesive tape, and includes, for example, a woven fabric processed into a fabric shape by a set of warp knitting, weft knitting, and the like via a knitted loop.

Preferable examples of the woven or nonwoven fabric include those composed of at least one resin fiber selected from the group consisting of polyester resins, polyethylene resins, and polypropylene resins, and among them, those composed of polyester polyethylene terephthalate which has little interaction with the components contained in the binder layer are preferable.

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, plastic vinyl acetate-vinyl chloride copolymer, polyvinylidene chloride, ethylene-vinyl alcohol copolymer, cellulose acetate, ethyl cellulose, ethylene-ethyl acrylate copolymer, polytetrafluoroethylene, polyurethane, and ionomer resins. When the adhesive tape of the present invention is used as an adhesive patch for medical use or cosmetic use, a material having sufficient stretchability or non-stretchability as an adhesive patch is preferably used as the support, and a knitted fabric (woven fabric) of polyethylene terephthalate is particularly preferable.

The base weight (per unit mass) of the woven fabric as the support 18 is preferably 50 to 500g/m². When measured by the method according to JIS L1096, the support body 18 preferably has a longitudinal (major axis) 30% modulus of 2 to 12N/5cm, and a transverse (minor axis) 30% modulus of 2 to 12N/5 cm. The longitudinal direction referred to herein means the moving direction in the process of producing the woven fabric, and the transverse direction means the width direction which is the direction perpendicular to the longitudinal direction. When the 30% modulus in the longitudinal or transverse direction is lower than 2N/5cm, the tape tends to be less likely to be wrinkled at the bonded portion and to be bonded, and when the 30% modulus in the longitudinal or transverse direction is higher than 12N/5cm, the tape tends to be stretched excessively at the time of bonding and to be wrinkled more likely. The 30% modulus test was a room temperature (25 ℃ C.) value.

By using the support body 18, a temporary fixing portion described later can be easily formed, and the shape and structure of the support body 18 after being removed from the temporary fixing portion are hardly changed. That is, for example, no fuzz is generated. In addition, the adhesive tape packaging bag 10 can be easily folded in half, and does not increase in volume. In addition, when the adhesive tape is stuck, so-called "wrinkles" are not easily generated in the folded portion, and the adhesive tape can be stuck smoothly.

The adhesive component of the material constituting the pressure-sensitive adhesive layer 12 is not particularly limited as long as it has adhesiveness and can be attached to an attachment site, but an acrylic adhesive component, a rubber adhesive component, a silicon 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, either natural rubber or synthetic rubber can be used, and as the synthetic rubber, for example, a styrene-based block copolymer or polyisobutylene can be mentioned. 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 kratonD-1112, D-1111, D-1107 (trade name, manufactured by Kraton Polymer Co.), JSR5000 or JSR5002 (trade name, manufactured by Nippon synthetic rubber Co., Ltd.),3530. 3421 or 3570C (trade name, manufactured by Zeon, Japan), Kraton D-KX401CS or D-1107CU (trade name, manufactured by Kraton Polymer Co.), Kraton D-1124 (trade name, manufactured by Kraton Polymer Co.), etc,418 (trade name, product of Phillips Petroleum corporation), and the like.

As the polyisobutylene, there may be usedHigh to low molecular weight polyisobutenes, for example,b10, B12, B12SF, B15, B15SF, B30SF, B50, B50SF, B80, B100, B120, B150, B200 (trade name, manufactured by BASF corporation),LM-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.), etc.

Further, as the acrylic polymer, a polymer or copolymer containing at least one kind of (meth) acrylic acid ester represented by, for example, 2-ethylhexyl acrylate, methyl acrylate, butyl acrylate, hydroxyethyl acrylate, 2-ethylhexyl methacrylate, etc. as a monomer unit can be used, and for example, an octyl acrylate copolymer, a 2-ethylhexyl acrylate/N-ethylene-2-pyrrolidone/1, 6-hexanediol dimethacrylate copolymer, a 2-ethylhexyl acrylate/vinyl acetate/acrylic acid copolymer, a 2-ethylhexyl acrylate/2-ethylhexyl methacrylate/dodecyl methacrylate copolymer, a copolymer of methyl methacrylate, a copolymer of ethyl methacrylate, methyl acrylate-2-ethylhexyl acrylate copolymer resin latex, a binder such as an acrylic polymer contained in an acrylic resin alkanolamine solution, a Duro-Tak acrylic adhesive series (National Starch and Chemical Co., Ltd.), a GELVA acrylic adhesive (Monsanto Co., Ltd.), SKDyne-Matriederm (general research Chemical), Eudragit (Gutter Kogyo Co., Ltd.), and the like.

The above-mentioned rubber-based, acrylic-based, silicon-based, and other adhesive bases may be used singly or in combination of two or more.

When the adhesive tape of the present invention is used as a cataplasm for medical use, a plaster, or a cosmetic film, a water-soluble polymer may be used as the adhesive layer, and as such a water-soluble polymer, gelatin, agar, alginic acid, mannitol, carboxymethyl cellulose or a salt thereof, hydroxypropyl cellulose or a salt thereof, polyvinyl alcohol, polyacrylic acid or a salt thereof, or the like is preferably used, or at least one of these materials is crosslinked by an organic or inorganic crosslinking agent.

In addition to the above-mentioned adhesive base, an adhesion imparting agent, a softening agent, a dissolving agent, water, a thickener, a wetting agent, a filler, a crosslinking agent, a polymerization agent, a solubilizing agent, an absorption accelerator, a stabilizer, an antioxidant, an emulsifier, a surfactant, a pH adjuster, a drug, an ultraviolet absorber, and the like may be appropriately added to the adhesive layer 12.

The drug used when the adhesive tape of the present invention is used as a patch for medical use or cosmetic use is not particularly limited as long as it can be transdermally absorbed into the body to exert 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 mental stabilizer, an antihypertensive agent, an antibacterial agent, and a vasodilator.

The release sheet 16 of the present invention may be any sheet that can be generally used as a packaging bag for an adhesive tape. The release sheet 16 may be a single layer or a plurality of layers, and the constituent material is not particularly limited as long as the effects of the present invention can be achieved. For example, it can be suitably selected from 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, and the like.

These materials may be coated with printing ink or an adhesive, or a thin film may be formed on these materials by a method such as vapor deposition or sputtering. As the thin film, a thin film having high gas barrier properties and high transparency, such as silicon oxide, magnesium oxide, and aluminum oxide, can be suitably used in addition to a metal such as aluminum. Among them, a film containing aluminum is preferable, a film in which polyethylene, aluminum, and polyethylene are sequentially laminated is more preferable, and a film in which cellophane is laminated as an outermost layer is further preferable.

These release sheets are preferably flexible because they are folded when the adhesive tape is sealed. Therefore, the thickness of the release sheet is not particularly limited as long as it can be folded, but is preferably within a range of 10 to 500 μm, and more preferably within a range of 15 to 300 μm.

The manufacturing process is explained here. First, as shown in fig. 2 (a), on the release sheet 16, the adhesive tape 14 is releasably attached with the adhesive layer 12 down. At this time, both the center line of the adhesive tape 14 parallel to the short axis direction thereof and the center line of the release sheet 16 parallel to the short axis direction thereof are attached in a shifted state.

Next, the release sheet 16 is folded together with the adhesive tape 14, and the state is shown in fig. 2 (b). The folding position of the release sheet 16 may be on the center line of the release sheet 16 in the short axis direction, but is preferably located slightly off the center line. By folding the release sheet 16 so as to be slightly offset from the center line in this manner, as schematically shown in fig. 3, the edge (1 st edge) 20 of the release sheet 16 facing the folded edge is offset, and the effect of easily picking up the portion is obtained. Note that, regarding the deviation, various types of deformation can be considered in consideration of the operability of the adhesive tape packaging bag 10. For example, in the configuration shown in fig. 1 and 2, the edge 20 of the 1 st portion 22 of the release sheet 16 is protruded beyond the edge 20 of the 2 nd portion 24, and conversely, the edge 20 of the 2 nd portion 24 may be protruded beyond the 1 st portion 22. Alternatively, the offset portion may be formed only at the corner portion of the packaging bag 10, or the 1 st part 22 may be formed to protrude from the 2 nd part 24 in the right half portion, and the 2 nd part 24 may be formed to protrude from the 1 st part 22 in the left half portion.

Here, a half of the release sheet 16 that has been folded is referred to as a 1 st part 22 and the remaining half is referred to as a 2 nd part 24, and a half of the adhesive tape 14 that is folded together with the release sheet 16 is referred to as a 1 st part 26 and the remaining half is referred to as a 2 nd part 28. When the release sheet 16 is folded, 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 except for the offset at the edge 20, 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 has an exposed portion 30 exposed from the 2 nd portion 28 (fig. 3).

In this state, 3 sides surrounding the adhesive tape 14 are sealed in the mutually overlapping portion of the 1 st portion 20 and the 2 nd portion 22 of the release sheet 16 (fig. 2 (c)). More specifically, the linear sealing portions 38, 40, and 42 are provided along the edge 20 of the release sheet 16 facing the folded edge 32 and the edges 34 and 36 (the 2 nd edge 34 and the 3 rd edge 36) on both sides thereof, and are disposed separately from the corresponding edges 20, 34, and 36. In particular, the seal (1 st seal) 38 along the edge 20 is spaced further from the edge 20 than the seals 40, 42 (2 nd seal 40, 3 rd seal 42) along the edges 34, 36. This makes the portion outside the sealing portion 38 a removal substitute portion 44, which facilitates removal by hand and opening. As described above, by slightly offsetting the edges 20 of the 1 st and 2 nd portions 22 and 24 of the release sheet 16 from each other, the overlapped portion of the release sheet 16 constituting the takeout substitute portion 44 can be easily separated, and the opening can be more 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. The corners 46, 48 are also separated from the edges 20, 34, 36, respectively. The details will be described below. By separating the corners 46, 48 from the edges 20, 34, 36, the force can be concentrated on the portions, and the effect of facilitating the opening can be achieved.

As a method of forming the seal portions 38, 40, and 42, a heat sealing method is preferable, and other methods using an adhesive or the like can be considered. In addition, it is also effective to use the so-called easy peel (easy peel) technique. "tear-off easily" means a patent map of a category of technical fields as available in the homepage of the website of the japanese patent office, generally 21 "following" page 335 (www.jpo.go.jp/shiryou/s _ sonota/map/ippan21/4/4-3-1. htm), which means easy peelability, sealing by heat sealing on a container, package, and easy peeling when opened. Specifically, there are various types of easy-to-tear, such as a cohesive peeling type in which the adhesive layer itself between the 1 st part 22 and the 2 nd part 24 of the release sheet 16 is broken and peeled off; an interlayer peeling type in which the adhesive layer is reduced in advance in the adhesion strength with the 1 st part 22 or the 2 nd part 24, and the 1 st part 22 or the 2 nd part 24 is peeled from the adhesive layer at the time of unsealing; and a surface release type using an easily adhesive resin such as EVA, but when a sheet having a polyethylene layer disposed on the surface is used as the release sheet 16, a two-layer structure of a resin layer mainly composed of high-density polyethylene and an easily releasable resin layer containing a resin which can cause aggregation failure and is added to low-density polyethylene is preferably used as the easily releasable adhesive layer.

By forming a seal at the 3-side of the 1 st part 22 and the 2 nd part 24 overlapped with each other by folding the release sheet 16, the inside is blocked from the outside, so that the adhesive tape 14 is physically protected more hygienically, and there are advantages that the component contained in the adhesive layer 12 of the adhesive tape 14 does not leak to the outside and does not volatilize. Further, since the release sheet 16 can also function as a packaging bag, a separate packaging bag that is conventionally provided can be omitted.

In order to avoid the sharp corner of the finished adhesive tape packaging bag 10, it is preferable that a part of the corner, preferably all 4 corners of the finished adhesive tape packaging bag 10 are rounded in the release sheet. In the adhesive tape packaging bag 10 of fig. 1 and 2 (c), 2 corners are rounded.

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

However, since the 1 st portion 26 of the adhesive tape 14 moves together with the 1 st portion 22 of the release sheet 16 and the adhesive layer 12 of the 2 nd portion 28 of the adhesive tape 14 is exposed, it is not possible to know which side of the front and back the adhesive layer 12 is exposed, which is very inconvenient. That is, when the tape is opened, it is important to hold the 1 st portion 26 of the adhesive tape 14 to the 2 nd portion 24 of the release sheet 16 at a time and expose the adhesive layer 12 of the 1 st portion 26 of the adhesive tape 14. Thus, the exposed portion 30 formed at 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 locations indicated by reference numerals 50, 52, 54.

As a means for temporary fixing, thermal bonding is effective when the inner layer of the release sheet 16 is made of a thermoplastic material that melts at a predetermined temperature and the support 18 of the adhesive tape 14 is made of, for example, woven fabric. That is, when heat is applied from the outer surface side of the release sheet 16, the thermoplastic material of the release sheet 16 melts, penetrates into the woven fabric of the support 18 of the adhesive tape 14, and finally is cured at that position, so that the exposed portion 30 of the adhesive tape 14 is temporarily fixed to the 2 nd portion 24 of the release sheet 16. Even when the release sheet 16 does not have thermoplasticity, it is considered that thermal bonding can be performed by including a thermoplastic material in the material of the support 18.

In the case where the temporary fixing portions 50, 52, 54 are formed by heat-sealing, the release sheet 16 is folded into a state of fig. 2 (c), and the heat-sealing are simultaneously performed or the heat-sealing is continuously performed on the overlapped portions 38, 40, 42 of the 1 st portion 20 and the 2 nd portion 22. Therefore, the effect of improving the manufacturing efficiency can be achieved.

In addition, as for the position where the temporary fixing portion is arranged, as shown in fig. 1, it is preferable that the temporary fixing portion is formed not only on a line along the 1 st seal portion 38 but also on a line along the 2 nd seal portion 40 and the 3 rd seal portion 42. Thereby, even in the case where the 1 st and 2 nd portions 22 and 24 of the release sheet 16 are pulled apart in the lateral direction, the temporary fixing effect can be secured. The lines on which the temporary fixing sections 50, 52, 54 are arranged are not limited to straight lines, and may be curved lines, and may be arranged on a plurality of lines. Further, the 1 st, 2 nd, and 3 rd seal parts 38, 40, and 42 may be arranged in a zigzag, or random manner.

If the temporary fixing portion causes excessive adhesion, the adhesive tape 14 may not be easily detached from the release sheet 16 when the adhesive tape is attached to the attachment site. Therefore, the adhesion of the exposed portion 30 of the adhesive tape 14 to the release sheet 16 is preferably higher than the adhesion (adhesive force) of the adhesive layer 12 to the release sheet 16. That is, the relationship among the adhesion force of the support 18 to the release sheet 16 via the temporary fixing portions 50, 52, 54, the adhesion force (adhesive force) of the adhesive layer 12 of the adhesive tape 14 to the attachment site, and the adhesion force of the adhesive layer 12 of the adhesive tape 14 to the release sheet 16 is as follows.

Adhesion of the adhesive layer 12 to the site of application

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

Adhesion of adhesive layer 12 to Release sheet 16

In the case where the temporary fixing portion is formed in a band shape to be continuous with the temporary fixing portion, the thermoplastic material in the release sheet 16 is likely to be impregnated into the woven fabric of the support 18 of the adhesive tape 14 in an excessive amount, and thus the above-described relationship is not easily obtained. Therefore, in the present invention, as shown by reference numerals 50, 52, 54 in fig. 1 to 3, the adhesion force of the temporary fixing portions can be easily adjusted by discontinuously forming the temporary fixing portions and adjusting the number, size, etc. of the temporary fixing portions. This can further improve the efficiency of manufacturing the adhesive tape packaging bag 10, and can ensure a certain quality in terms of the operational effect thereof.

The temporary fixing portions 50, 52, 54 may be formed not only by thermal bonding, but also by double-sided tape, adhesive, bonding agent, pseudo-adhesive, melting, pressure, molding, hot-melt adhesive, or the like depending on the material, properties, or the like of the release sheet 16 or the support 18. Here, "pseudo-adhesive bonding" means that, as described in the patent map of the technical segment category available from the website homepage of the japanese patent office, generally page 21 "next to" page 336, it does not have adhesion at all, but bonding can be performed under special pressure conditions or the like, and a pseudo-adhesive produced by adding an additive to an adhesive can be used.

Further, the release sheet 16 preferably has an adhesion force suppressing means that can suppress adhesion force between the adhesive layer 12 of the 1 st portion 26 of the adhesive tape 14 and the release sheet 16. As this adhesion force suppressing means, it is conceivable to perform a peeling process on a portion of the release sheet 16 that is in contact with the adhesive tape 14. In particular, in the adhesion force suppressing device, in order to facilitate the peeling of the 1 st portion 26 of the adhesive tape 14 from the release sheet 16 when opening the adhesive tape packaging bag 10, the peeling treatment may be performed only on the portion of the release sheet 16 with which the 1 st portion 26 of the adhesive tape 14 is in contact, and the peeling treatment may be performed only on the other portion of the portion as long as the purpose can be achieved.

The peeling treatment includes a method of using a peeling agent, and a method of facilitating physical peeling such as embossing and sanding. As the release agent, any of a silicon-based release agent, a side chain alkyl-based release agent, a condensation 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 the advantage that it can be performed relatively easily and inexpensively. By performing the silicon treatment, when the release sheet 16 is opened in the case of using the packaging bag for adhesive tape 10, the temporary fixing portions 50, 52, 54 are interacted with each other, so that the adhesive layer 12 is easily separated from the release sheet 16 to expose the adhesive layer 12, and the adhesion to the adhesion portion is facilitated.

Next, the operation of the adhesive tape packaging bag 10 of the present embodiment will be described with reference to fig. 4 and 5.

Fig. 4 (a) is a perspective view showing the adhesive tape packaging bag 10 of the present embodiment. From this state, the user picks up the pickup substitute portion 44 (finger not shown) of the release sheet 16, and starts to pull the 1 st portion 22 and the 2 nd portion 24 of the release sheet 16 in the direction of the arrow a. In this case, since the edge 20 of the 1 st section 22 of the release sheet 16 is slightly offset from the edge 20 of the 2 nd section 24, the 1 st section 22 is easily separated from the 2 nd section 24 by hooking a finger.

Generally, such adhesive tape packaging bags 10 are often opened from the end portions. Therefore, as shown in fig. 4 (a), when proceeding from the corner of the packaging bag 10, the force concentrates on the corner 46 between the transverse seal portion 40 and the longitudinal seal portion 38, so that the seal portions 38, 40 easily start to rupture. Once the breakage starts at the seal portions 38 and 40, even if a large force is not applied, the breakage is gradually transmitted to other portions from the breakage start point, and the entire seal portions 38, 40, and 42 are broken, so that the adhesive tape packaging bag 10 is in the state shown in fig. 4 (b). As described above, due to the presence of the temporary fixing portions 50, 52, 54, the 1 st portion 26 of the adhesive tape 14 is once held on the 2 nd portion 24 side of the release sheet 16, and therefore, the adhesive layer 12 of the 1 st portion 26 of the adhesive tape 14 is exposed.

It is considered herein that: in the case where no gap is provided between the vertical seal portion 40 and the edge 34, the force applied to the take-off substitute portion 44 acts on the straight portion of the horizontal seal portion 38, and the force is dispersed, thereby making unsealing difficult. However, the structure of the present embodiment improves this point.

In addition, when the rupture starts from the corner 46 between the transverse seal portion 40 and the longitudinal seal portion 38, a force acts from the transverse direction (direction parallel to the edge 20) to the portion where the temporary fixation is performed. At this time, although it may be impossible to completely resist the lateral force only by the lateral temporarily fixing portions 50, the 1 st portion 26 of the adhesive tape 14 can be held even if the lateral force acts because the vertical temporarily fixing portions 52 are provided in the present embodiment.

Unlike fig. 4, the package bag 10 for adhesive tape may be opened from the corner on the opposite side, but since it is bilaterally symmetrical, it can be opened with a light force to expose the adhesive layer 12 of the 1 st portion 26 of the adhesive tape 14, as described above. Further, in the case of unsealing by removing the center portion of the substitute portion 44, since the portion to be removed with a finger is wide, a large force can be applied to the lateral sealing portion 28, and therefore, unsealing can be performed easily even though it is inferior to unsealing from the corner portion.

Fig. 5 (a) to (d) show the case where the adhesive tape of the present invention is used as an adhesive patch for medical use, cosmetic use, or the like, in particular, but the adhesive tape can be attached by the same method when used for other applications. That is, a method of attaching the adhesive tape 14 to the attachment site with the packaging bag after the adhesive layer 12 of the part 1 of the adhesive tape 26 is exposed is shown. First, the packaging bag for adhesive tape is held with one hand and brought into contact with the attachment site or the vicinity of the attachment site as shown in fig. 5 (a) and (b). Next, the 1 st portion 20 of the release sheet 16 is gripped, and as shown in fig. 5 (c), the release sheet 16 is pulled along the skin in the longitudinal direction thereof and in the direction away from the adhesive tape 14. As the release sheet 16 is pulled, the 2 nd portion 28 of the adhesive tape 14 is attached to the attachment site while being peeled off from the release sheet 16. In particular, since the release sheet 16 is pulled and attached, the adhesive tape 14 can be attached without wrinkles. Fig. 5 (d) shows a state where the entire adhesive tape 14 is attached to the attachment site.

In the adhesive tape packaging bag 10 of the present embodiment, the thumb of the hand on which the adhesive tape 14 is mounted can be accompanied by the 1 st portion 20 of the release sheet 16 that is peeled from the adhesive layer 12, and therefore, the hand can be firmly held. Therefore, the adhesive tape 14 is less likely to fall off when being brought into contact with the attachment site, and the adhesive tape 14 is less likely to fall off in an unintended direction due to shaking or gravity when being attached, so that the attachment site can be attached with care, stability, and accuracy. Even if the sticking portion is a back or the like which is difficult for the user to stick, the sticking can be easily performed with one hand.

In the above-described operation, the pressure-sensitive adhesive layer is less likely to contact the skin other than the attachment site. The adhesive tape is sanitary without the adhesive layer sticking to fingers and the like as is often experienced when using a conventional type of adhesive tape, and after peeling the 1 st part 22 of the release sheet 16, the adhesive tape 14 is in a state of being supported or reinforced on the 2 nd part 24 of the release sheet 16, and therefore, there is no possibility that the adhesives stick to each other and the adhesive patch cannot be used.

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

For example, the shape of the temporary fixing portions 50, 52, 54 is not limited to the rectangular shape shown in fig. 1, and may be various shapes such as a triangular shape shown in fig. 6 (a) and an elliptical shape shown in fig. 6 (b).

The adhesive tape packaging bag of the above embodiment is a three-side sealed packaging type, but may be a four-side sealed packaging type in which sealing is performed along a folded edge.

Further, as shown in fig. 7, 2 pieces of release sheets 16a and 16b having substantially the same shape may be prepared and stacked to form the adhesive tape packaging bag 10 having the sealing portions 38, 40, 42, and 60 provided on four sides. In the case of the four-side-seal package type, the adhesive tape 14 needs to be placed on the release sheet 16b in a state of being folded in advance, and the release sheet 16a needs to be removed from the release sheet 16b at the time of attachment.

Description of the symbols

10: packaging bag for adhesive tape

12: adhesive layer

14: adhesive tape

16, 16a, 16 b: release sheet

18: support body

20: 1 st edge

22: part 1 of the Release sheet

24: part 2 of the Release sheet

26: part 1 of adhesive tape

28: part 2 of adhesive tape

30: exposed part

32: 4 th edge

34: 2 nd edge

36: edge No. 3

38: 1 st seal part

40: 2 nd seal part

42: no. 3 seal part

44: picking replacement part

46, 48: corner part

50, 52, 54: temporary fixing part

60: 4 th seal part

Claims (11)

1. A packaging bag for an adhesive tape, which is rectangular and accommodates an adhesive tape having a support and an adhesive layer provided on one surface of the support, comprising: superposing the 1 st and 2 nd parts of a release sheet releasably attached to the adhesive layer and sealing the periphery thereof,

the adhesive tape is contained in the adhesive tape packaging bag in a state that the adhesive tape is folded into a 1 st part and a 2 nd part in a manner that the adhesive layer faces the outside,

the 1 st portion of the adhesive tape being larger than the 2 nd portion of the adhesive tape, having an exposed portion exposed from the 2 nd portion of the adhesive tape,

it is characterized in that the preparation method is characterized in that,

the adhesive tape packaging bag is provided with a 1 st sealing part along a 1 st edge, a 2 nd sealing part along a 2 nd edge adjacent to the 1 st edge and intersecting the 1 st sealing part, and a 3 rd sealing part along a 3 rd edge adjacent to the 1 st edge and intersecting the 1 st sealing part, which are respectively separated from the corresponding edges,

the exposed portion is disposed adjacent to the 1 st sealing portion and temporarily fixed by a plurality of temporary fixing portions between portions of the release sheet on the 2 nd portion side of the adhesive tape,

the plurality of temporary fixing portions are arranged along the 1 st sealing portion, the 2 nd sealing portion, and the 3 rd sealing portion, respectively, in a state where the adjacent temporary fixing portions are spaced apart from each other.

2. The adhesive tape packaging bag according to claim 1, wherein the 1 st seal part, the 2 nd seal part and the 3 rd seal part are heat seal parts.

3. The packaging bag for adhesive tape according to claim 1, wherein the interval between the 1 st edge and the 1 st sealed portion functions as a removal substitute portion.

4. The packaging bag for adhesive tape according to claim 1, wherein the layer of the release sheet that is the inner side of the packaging bag for adhesive tape is made of a thermoplastic material,

the temporary fixing portion is formed by thermally bonding the thermoplastic material layer and the support of the adhesive tape.

5. The packaging bag for adhesive tape according to claim 1, wherein an adhesion force suppressing means for suppressing adhesion force between the adhesive layer of the part 1 of the adhesive tape and the release sheet is provided on at least a part of the release sheet.

6. The packaging bag for adhesive tape according to claim 5, wherein the adhesion inhibitor is a silicon-treated surface formed on at least a part of the portion of the release sheet to which the adhesive layer of the 1 st portion of the adhesive tape is attached.

7. The packaging bag for adhesive tape according to claim 5, wherein the adhesion inhibitor is an embossed surface and/or a frosted surface formed on at least a part of the portion of the release sheet to which the adhesive layer of the 1 st portion of the adhesive tape is attached.

8. The packaging bag for adhesive tape according to claim 1, wherein the adhesive tape is applied to skin or an adhesive film.

9. The packaging bag for adhesive tape according to claim 1, wherein the 1 st part and the 2 nd part of the release sheet are formed by folding 1 release sheet.

10. The adhesive tape-packaging bag according to claim 1, wherein the 1 st portion and the 2 nd portion of the release sheet are each formed of a separate release sheet, and are sealed along a 4 th edge of the adhesive tape-packaging bag opposite to the 1 st edge.

11. The adhesive tape packaging bag according to any one of claims 1 to 10, wherein the adhesive force of the support of the adhesive tape to the release sheet via the temporary fixing portion is higher than the adhesive force of the adhesive layer to the release sheet.