JP2020097431A - Storage bag and manufacturing method of storage bag - Google Patents

Abstract

To provide a comparatively inexpensive storage bag of double-layered structure and a manufacturing method of storage bags.SOLUTION: A storage bag 10 has a double-layered structure in which two sheets, a rectangular front sheet 13 and a rectangular back sheet body 24, are adhered together, and the rectangular back sheet body 24 is divided into a back sheet 25 and a peeling sheet 26. The front sheet 13 and the back sheet 25 are formed into a bag shape and a storage part 11 is therefore formed, and an adhesion part 12 is formed by the front sheet 13 and the peeling sheet 26.SELECTED DRAWING: Figure 2

Description

The present invention relates to a storage bag for storing a storage target and a method for manufacturing a storage bag.

2. Description of the Related Art Conventionally, a delivery pack has been used when shipping a package, for example, when attaching a delivery statement, a bill, a guide, etc. of the contents. The delivery pack accommodates the delivery statement and the like, and is attached to the outer surface of the box that is the exterior of the luggage. The delivery pack allows the recipient to check the delivery statement and the like before opening the package.

In general, a delivery pack is formed into a bag shape by stacking two sheets of polyethylene film, polypropylene film, paper, etc., and a release paper is attached to the back surface via an adhesive layer. The manufacturer attaches the sheet to the surface of the purchased tack paper or tack film to produce the delivery pack, or manufactures the tack paper or tack film including release paper and attaches the sheet to the surface for delivery. Produce a pack. In addition to the latter manufacturing process, a release agent such as silicone is applied to roll-shaped paper, and the release agent is dried through a hot air drying oven or the like to produce release paper. Generally, as release paper, sealing paper or glassine paper, which is preliminarily impregnated with resin as a barrier layer, is used so that the release agent is not overly impregnated. The release paper is rewound into a roll and aged for several days. The release paper is coated with the pressure-sensitive adhesive, the moisture of the pressure-sensitive adhesive is dried through a hot air drying oven, and then the sheet is attached to the pressure-sensitive adhesive layer to produce tack paper. The sheet is adhered to the surface of the tack paper and cut into an appropriate product size to complete the delivery pack.

For example, in the bag described in Patent Document 1 below, an adhesive layer is formed on the back surface of a bag body formed of a two-layer sheet, and release paper is attached to this adhesive layer. That is, the bag has a three-layer structure.

Registered utility model No. 3130324

However, as described above, since the general delivery pack and the storage bag described in Patent Document 1 have a three-layer structure, the material cost for three layers is required.

The present invention has been proposed in view of the above circumstances. That is, it is an object of the present invention to provide a relatively inexpensive two-layer structure storage bag and a storage bag manufacturing method.

A storage bag according to the present invention is a storage bag having a storage portion for storing an accommodation target and a sticking portion to be stuck to a sticking target, wherein the storage portion includes a front sheet and a back sheet. It is characterized in that the release sheet adjacent to the back sheet is attached to the back surface of the front sheet via the adhesive layer, thereby forming the attachment portion.

In the storage bag according to the present invention, in addition to the above configuration, the front sheet has a storage portion constituting surface portion, and a sticking portion constituting surface portion connected to the storage portion constituting surface portion, in the storage portion constituting surface portion. The accommodating portion constituting surface portion and the back sheet are adhered to each other via an adhesive portion provided at an end portion of the back surface, and an opening portion is formed between the back sheet and the other end portion of the rear surface of the accommodating portion constituting surface portion. Is formed, and the release sheet is attached to the attachment portion constituting surface portion via the adhesive layer provided on the back surface of the attachment portion constituting surface portion.

In the storage bag according to the present invention, in addition to the above configuration, the storage portion constituting surface portion and the back sheet are adhered to each other via an adhesive portion provided between end portions of the back surface of the storage portion constituting surface portion. Therefore, it has a plurality of accommodation areas.

The storage bag according to the present invention is characterized in that, in addition to the above configuration, it has a release layer impregnated on the surface of the release sheet having no barrier layer.

The storage bag according to the present invention is characterized in that, in addition to the above configuration, the front sheet is transparent.

The storage bag according to the present invention is characterized in that, in addition to the above configuration, the attaching portion is adjacent to the opening of the storage portion.

The method of manufacturing the accommodation bag according to the present invention comprises a step of forming a release layer by applying a release agent to one end or both ends of the surface of the back sheet body and drying the release layer, and an adhesive on the release layer. A step of applying an agent to form an adhesive layer, a step of forming an adhesive portion at an end of the back sheet body excluding the release layer, and the back sheet body via the adhesive layer and the adhesive portion. And a step of cutting the gap between the adhesive layer and the adhesive portion in the back sheet main body.

In addition to the above-described configuration, the method for manufacturing a storage bag according to the present invention includes, in the procedure of forming the adhesive portion, forming an adhesive portion between the end portions of the back sheet body excluding the release layer, and adhering the adhesive portion. In the procedure of attaching the front sheet to the back sheet main body through the layer and the adhesive portion, a single or a plurality of accommodation areas are formed.

In addition to the above configuration, the method for manufacturing a storage bag according to the present invention is characterized in that the adhesive portion is formed by applying the pressure-sensitive adhesive.

In addition to the above-mentioned composition, the manufacturing method of the accommodation bag according to the present invention is characterized in that the procedure of forming the adhesive layer and the procedure of forming the adhesive portion are simultaneously performed.

In addition to the above-mentioned constitution, the method for producing a container according to the present invention is characterized in that a paper having no barrier layer in the back sheet body is used, and the release agent is dried by irradiating with ultraviolet rays. ..

The method for manufacturing a storage bag according to the present invention is characterized in that, in addition to the above configuration, a procedure for drying the pressure-sensitive adhesive is not performed.

In the storage bag according to the present invention, the storage portion has a storage area between the front sheet and the back sheet, and the release sheet adjacent to the back sheet is attached to the back surface of the front sheet via the adhesive layer. Thus, the attachment portion is formed. That is, the accommodating part has a two-layer structure of a front sheet and a back sheet, the attaching part has a two-layer structure of a front sheet and a release sheet, and the accommodating bag has a two-layer structure as a whole. Therefore, the material cost is lower than that of the three-layer structure.

In the storage bag according to the present invention, the front sheet has a storage portion constituting surface portion and a sticking portion constituting surface portion connected to the storage portion constituting surface portion, and an adhesive provided at an end portion of the back surface of the storage portion constituting surface portion. The housing portion constituting surface portion and the back sheet are adhered to each other via the portion, and an opening is formed between the back sheet and the other end portion of the back surface of the housing portion constituting surface portion, and the back surface of the attaching portion constituting surface portion is provided. A release sheet may be attached to the surface of the attachment portion via the adhesive layer provided. That is, the accommodation bag has a two-layer structure in which the surface portion of the front sheet that constitutes the accommodation portion and the back sheet are stacked, and the surface of the front sheet that constitutes the attachment portion and the release sheet are stacked. Therefore, the material cost is lower than that of the three-layer structure.

The accommodating bag according to the present invention has a plurality of accommodating regions by the accommodating portion constituting surface portion and the back sheet being adhered to each other via the adhesive portion provided between the end portions of the rear surface of the accommodating portion constituting surface portion. You can also Therefore, the accommodation target can be accommodated separately for each of the plurality of accommodation areas. Even in this case, since the accommodating bag has a two-layer structure as a whole, the material cost is lower than that of a three-layer structure.

The accommodation bag according to the present invention may have an impregnated release layer on the surface of the release sheet having no barrier layer. In this case, cheaper paper can be used for the release sheet than using a release sheet having a barrier layer.

The storage bag according to the present invention may have a transparent front sheet. Since the transparent material is not generally made of paper, the accommodation bag can be realized by the front sheet not made of paper and the back sheet main body made of paper. Further, since the accommodation target accommodated in the accommodation portion is transparent through the front sheet, the accommodation target can be visually recognized from the outside.

In the storage bag according to the present invention, the opening can be closed by the sticking part by disposing the sticking part so as to be adjacent to the opening of the storing part.

The method for manufacturing a storage bag according to the present invention comprises a step of forming a release layer by applying a release agent to one end or both ends of the surface of the back sheet main body and drying, and an adhesive on the release layer. To form a pressure-sensitive adhesive layer, a procedure to form an adhesive portion on the end of the back sheet body excluding the release layer, and a front sheet attached to the back sheet body via the pressure-sensitive adhesive layer and the adhesive portion. It goes through a procedure and a procedure of cutting between the adhesive layer and the adhesive portion in the back sheet body. The back sheet main body is originally a sheet before being cut because the backing sheet main body is cut off between the adhesive layer and the adhesive portion to form a release paper on the side bonded to the adhesive layer. Therefore, it is not necessary to prepare release paper separately from the back sheet body. Therefore, the accommodation bag is realized by the two-layer structure of the front sheet and the back sheet body, and the accommodation bag can be manufactured at a lower material cost than the three-layer structure.

In the method for manufacturing a storage bag according to the present invention, in the procedure of forming the adhesive portion, the adhesive portion is formed between the end portions of the back sheet body excluding the release layer, and the back sheet body is attached via the adhesive layer and the adhesive portion. By laminating the front sheets, a single or a plurality of accommodation areas can be formed. Therefore, the accommodating bag capable of separately accommodating the accommodating object in each of the accommodating regions is realized by the two-layer structure, and the accommodating bag can be manufactured at a lower material cost than the three-layer structure. it can. Moreover, in addition to the ends of the back sheet body excluding the release layer, the adhesive is simultaneously applied between the ends, so that the containing bag can be manufactured at high speed.

In the method of manufacturing the accommodation bag according to the present invention, the adhesive portion can be formed by applying the pressure sensitive adhesive. In this case, since the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer can form the pressure-sensitive adhesive layer and the adhesive portion, the material can be simplified as compared with the case where the adhesive is used.

The method of manufacturing the accommodation bag according to the present invention may simultaneously perform the procedure of forming the adhesive layer and the procedure of forming the adhesive portion. In this case, since the adhesive layer and the adhesive portion are formed at the same time, the process can be simplified.

In the method of manufacturing the accommodation bag according to the present invention, it is possible to use a release agent that is dried by irradiation with ultraviolet rays. In this case, since it is dried with ultraviolet rays before being excessively impregnated with the release agent, inexpensive paper having no barrier layer can be used. Also, since the release agent dries instantly with ultraviolet light, there is no need to dry the release agent in a hot-air drying oven or to wind it in a roll and aged for a long time. It can be manufactured.

The method of manufacturing the accommodation bag according to the present invention does not need to go through the procedure of drying the adhesive layer. That is, by using the back sheet body having no barrier layer, it is not necessary to go through the procedure of drying the pressure-sensitive adhesive containing a solvent, which has been conventionally required, before forming the bag. In general, paper having a barrier layer has a reduced moisture permeability due to the barrier layer, but the moisture permeability is maintained when the back sheet body does not have the barrier layer. The pressure-sensitive adhesive applied to the back sheet main body is naturally dried through the back sheet main body even when the front sheet is attached before drying. Therefore, it is possible to efficiently manufacture the containing bag at once in a single device without going through the procedure of drying the adhesive.

FIG. 1 is a schematic view showing a usage state of the accommodation bag according to the first embodiment of the present invention. 2A and 2B show the outline of the accommodation bag according to the first embodiment of the present invention, FIG. 2A is a plan view, and FIG. 2B is a side view taken along the line I-I in FIG. FIG. 3 is a cross-sectional view schematically showing a usage state of the accommodation bag according to the first embodiment of the present invention. 4A and 4B are schematic views of a storage bag according to a second embodiment of the present invention, FIG. 4A is a plan view, and FIG. 4B is a sectional view taken along line II-II in FIG. 5A and 5B are schematic views of a storage bag according to a third embodiment of the present invention, FIG. 5A is a plan view, and FIG. 5B is a III-III sectional side view in FIG. FIG. 6 is a schematic view of a storage bag according to another embodiment of the present invention, (a) is a plan view of the fourth embodiment, and (b) is a plan view of the fifth embodiment.

Hereinafter, the storage bag according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a usage state of the accommodation bag 10 according to the first embodiment. FIG. 2 shows the outline of the accommodation bag 10.

As shown in FIG. 1, the accommodation bag 10 stores a delivery statement, an invoice, a guide text, a product sample, and the like as the accommodation target 1, and is a box 2 as the attachment target that is the exterior of the package. It is attached to the outer surface. Therefore, the storage bag 10 has a storage portion 11 in which the storage target 1 is stored and a sticking portion 12 that is stuck to the box 2. It should be noted that the storage bag 10 may be attached to the box 2 at any position, and may be the side surface or the top surface of the box 2.

As shown in FIG. 2, the accommodation bag 10 has a rectangular shape and has a two-layer structure in which two sheets are stuck together. The accommodation bag 10 has a rectangular front sheet 13 and a rectangular back sheet main body 24, and the back sheet main body 24 is divided into a back sheet 25 and a release sheet 26. That is, since the front sheet 13 and the back sheet 25 are formed in a bag shape, the storage portion 11 having the storage area 21 therebetween is formed, and the front sheet 13 and the release sheet 26 form the attachment portion 12. ing. The attaching part 12 is connected to both ends of the housing part 11. The shape of the accommodation bag 10 is arbitrary and may be a square or the like, but considering that the accommodation target 1 is an envelope or the like, it is preferable that the accommodation bag 10 is a rectangle in which the envelope can be accommodated.

The front sheet 13 has a housing portion constituting surface portion 14 which is the center of the front sheet 13 and occupies most of the area, and a sticking portion constituting surface portion 15 connected to both sides of the housing portion constituting surface portion 14. Although the area ratio between the accommodation portion constituting surface portion 14 and the attachment portion constituting surface portion 15 is arbitrary, the accommodation portion constituting surface portion 14 may be wider in view of the function as the accommodation portion 11 that accommodates the accommodation target 1. preferable. Of the four end portions on the back surface of the housing portion constituting surface portion 14, the long side first end portion 16, the long side second end portion 17 facing the first end portion 16 in the plane direction, and one short side The third end portion 18 of the side has an adhesive layer 19 as an adhesive portion along each end portion 16, 17, 18. The adhesive layers 19 at the ends 16, 17, 18 are connected to each other, and the back sheet 25 is adhered thereto. On the other hand, the other short side end of the back surface of the housing portion constituting surface portion 14 does not have the adhesive layer 19 and the opening 20 is formed between the back sheet 25 and the back sheet 25. Therefore, the accommodation area 21 is formed inside the area surrounded by the adhesive layer 19, and the opening 20 communicates with the accommodation area 21.

The back surface of the sticking portion constituting surface portion 15 has an adhesive layer 22 and a grip margin 23. The adhesive layer 22 is slightly narrower than the sticking part constituting surface part 15, and a grip margin 23 is formed at an end portion of the sticking part constituting surface part 15 which is a part not having the sticking layer 22. Note that the picking margin 23 may be formed only on the side close to the housing portion 11 or on the end side opposite to the housing portion 11. A release sheet 26 is attached to the adhesive layer 22. The release sheet 26 has a release layer 27 whose surface is impregnated. The release layer 27 is slightly wider than the adhesive layer 22 and covers the adhesive layer 22.

The back sheet 25 has the same shape as the housing portion constituting surface portion 14 of the front sheet 13, and is adhered to the housing portion constituting surface portion 14 via the adhesive layer 19. The release sheet 26 is adjacent to both ends of the back sheet 25 in the plane direction, has the same shape as the pasting portion constituting surface portion 15 of the front sheet 13, and is stuck to the pasting portion constituting surface portion 15 via the adhesive layer 22. There is. Therefore, the sticking portion 12 including the sticking portion constituting surface portion 15 and the release sheet 26 is adjacent to the opening portion 20 of the housing portion 11.

The front sheet 13 is a transparent plastic film, such as a polyethylene film or a polypropylene film. Although the transparency is arbitrary, it is preferable that the accommodated object 1 to be accommodated can be seen through. The back sheet main body 24 is, for example, uncoated paper such as wood free paper, in other words, a sealing paper having a barrier layer for preventing excessive impregnation of a release agent such as silicone, or glassine paper. Not so.

The accommodation bag 10 is configured as described above. Next, a method of using the accommodation bag 10 will be described. FIG. 3 shows an outline of the usage state of the accommodation bag 10.

As shown in FIG. 3, the accommodation target 1 is accommodated in the accommodation unit 11 through the opening 20. When the release sheet 26 is peeled from the front sheet 13, the adhesive layer 22 is exposed on the front sheet 13. In this state, when the accommodation bag 10 is applied to the box 2, the accommodation bag 10 is attached to the box 2 via the adhesive layer 22. Since the sticking portion 12 is adjacent to the opening 20, the sticking layer 22 sticks to the box 2 to close the opening 20.

Note that the storage bag 10 is not attached to the outer surface of the box 2 or the like, but is also used as an envelope, for example, by attaching the attachment portion 12 to the back side and attaching it to the back surface of the back sheet 25. In this case, the attachment target is the back surface of the back sheet 25. Further, if the front sheet 13 is a non-transparent paper, the accommodation target 1 can be hidden.

Next, a method of manufacturing the accommodation bag will be described. The storage bag manufacturing method is realized by a single storage bag manufacturing apparatus (not shown), and the storage bag 10 is manufactured by so-called one-pass manufacturing.

The storage bag manufacturing apparatus separates a front sheet roll that is the roll-shaped front sheet 13 and a sheet feeding unit that feeds a sheet from the back sheet roll that is the roll-shaped back sheet body 24 and a part of the back sheet body 24. A coating portion that forms the mold layer 27, a coating portion that forms the adhesive layer 22 and the adhesive layer 19, a laminating portion that attaches the front sheet 13 and the back sheet body 24, and a back sheet body 24 that is peeled from the back sheet 25. The sheet 26 and a cut portion that cuts the accommodation bag 10 into a predetermined size. The accommodation bag manufacturing apparatus may have a print unit that prints on the front sheet 13 and/or the back sheet main body 24.

The sheet is sent from the front sheet roll and the back sheet roll set in the sheet feeding unit. In the coating portion, the release agent is applied only to both end portions of the surface of the back sheet main body 24 and dried to form the release layer 27. The release agent is, for example, solventless silicone. Here, since the back sheet main body 24 does not have a barrier layer, it is difficult to suppress the impregnation of the release agent. However, by irradiating with ultraviolet rays, it is possible to prevent the release agent from being excessively impregnated. Drys instantly.

In the coating portion, an adhesive is applied on the release layer 27 to form the adhesive layer 22, and at the same time, between the release layers 27 at both ends, the release layer 27 on the surface of the back sheet main body 24 and the housing are accommodated. An adhesive layer is formed by applying a pressure-sensitive adhesive to each of the ends 16, 17, 18 (in other words, the part of the front sheet 13 facing the end of the accommodation portion constituting surface portion 14) excluding the region 21. The adhesive is, for example, water-based glue. The front sheet 13 is attached to the back sheet body 24 via the adhesive layer 22 and the adhesive layer 19 in the laminating section without going through the procedure of drying the adhesive layer 22 and the adhesive layer 19. A part surrounded by each of the ends 16, 17, and 18 becomes a single accommodation area 21. Here, since the back sheet main body 24 does not have a barrier layer, moisture permeability is maintained, and the adhesive layer 22 is naturally dried even after the front sheet 13 is bonded. That is, in the method of manufacturing the accommodation bag, the procedure of forcibly drying the adhesive layer 22 is not performed before the accommodation bag 10 is formed.

At the cut portion, the back sheet body 24 is cut between the adhesive layer 22 and the adhesive layer 19, and the back sheet body 24 is divided into a back sheet 25 and a release sheet 26. Finally, the accommodating bag 10 is completed by cutting into a predetermined size suitable for the product.

As described above, the storage bag manufacturing method is executed. Next, the effect of this embodiment will be described.

As described above, the accommodation bag 10 has a two-layer structure in which two sheets of the rectangular front sheet 13 and the rectangular back sheet main body 24 are bonded together, and the back sheet main body 24 includes the back sheet 25 and the release sheet 26. It is divided into and. The accommodating portion constituting surface portion 14 of the front sheet 13 and the back sheet 25 are adhered to each other through the adhesive layer 19 to form a bag, thereby forming the accommodating portion 11, and the attaching portion constituting surface portion 15 of the front sheet 13 is formed. And the release sheet 26 form the attachment portion 12. Therefore, the material cost is lower than that of the three-layer structure.

Further, in the back sheet main body 24, since the adhesive layer 22 and the adhesive layer 19 are cut off, the side bonded to the adhesive layer 22 becomes a release paper. It is a sheet. Therefore, it is not necessary to prepare the release paper separately from the back sheet 25. Therefore, the accommodation bag 10 is realized by the two-layer structure including the front sheet 13 and the back sheet 25, and the accommodation bag 10 can be manufactured at a lower material cost than the three-layer structure.

The back sheet main body 24 of the accommodation bag 10 is a high-quality paper or the like having no barrier layer, and the release sheet 26 of the back sheet main body 24 has a release layer 27 made of solvent-free silicone impregnated on the surface. Here, since the back sheet main body 24 does not have a barrier layer, it is difficult to suppress excessive impregnation of the solventless silicone, but the release agent is excessively impregnated by irradiation with ultraviolet rays. Instantly dry before. Therefore, inexpensive paper that does not have a barrier layer can be used for the release sheet 27. Further, since the solventless silicone is instantly dried by ultraviolet rays, the accommodation bag 10 can be manufactured at a stretch with one apparatus for manufacturing the accommodation bag without going through the procedure of drying the solventless silicone for a long time.

In the accommodation bag 10, the front sheet 13 is attached to the back sheet main body 24 via the adhesive layer 22 and the adhesive layer 19 without going through the procedure of drying the adhesive layer 22 and the adhesive layer 19 such as aqueous glue. Since the back sheet main body 24 does not have a barrier layer, moisture permeability is maintained, and the adhesive layer 22 is naturally dried through the back sheet main body 24 even after the front sheet 13 is bonded. Therefore, it is possible to efficiently manufacture the accommodation bag 10 at a stretch with a single accommodation bag manufacturing apparatus, without going through the procedure of drying the adhesive before forming the accommodation bag 10.

Even if the front sheet 13 is a transparent film made of plastic having a low moisture permeability, the adhesive layer 22 is naturally dried due to the moisture permeability of the back sheet main body 24, and therefore the front sheet 13 and the paper which are not made of paper are used. The accommodation bag 10 can be realized with the back sheet main body 24 made of. If the front sheet 13 is transparent, the accommodation target 1 accommodated in the accommodation section 11 is transparent through the front sheet 13, so that the accommodation target 1 can be visually recognized from the outside.

In the accommodation bag 10, the attachment portion 12 including the attachment portion constituting surface portion 15 and the release sheet 26 is adjacent to the opening portion 20 of the accommodation portion 11. Therefore, when the adhesive layer 22 is attached to the box 2, the opening 20 can be closed by the attaching portion 12.

In the accommodation bag 10, since the back sheet 25 has the same shape as the accommodation portion constituting surface portion 14 of the front sheet 13, the accommodation target 1 can be covered with the entire accommodation portion 11. Therefore, it is possible to prevent the accommodation target 1 from being dropped or lost.

Since the storage bag manufacturing method does not pass through the procedure of winding into a roll or aging, the storage bag 10 can be manufactured at a stretch by realizing each procedure with one storage bag manufacturing apparatus. In addition, the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 22 and the pressure-sensitive adhesive forming the adhesive layer 19 are the same water-based adhesive and are simultaneously applied, so that the process can be simplified to manufacture the accommodation bag 10. ..

Next, a storage bag according to second to fifth embodiments of the present invention will be described with reference to the drawings. 4 shows an outline of the storage bag 210 according to the second embodiment, FIG. 5 shows an outline of the storage bag 310 according to the third embodiment, and FIG. 6 shows a storage bag according to the fourth embodiment. 410 and the outline of the accommodation bag 510 according to the fifth embodiment are shown. In addition, below, the structure different from the accommodation bag 10 which concerns on 1st embodiment is mainly demonstrated, and description of the same structure is abbreviate|omitted suitably.

As shown in FIG. 4, the accommodation bag 210 does not have the adhesive layer 19 on the end portion 18 as compared with the accommodation bag 10. The accommodation bag 10 is formed with the front sheet 13 and the back sheet 25 in a tubular shape, so that the accommodation portion 11 having the accommodation area 21 therebetween is formed. Of the four end portions on the back surface of the housing portion constituting surface portion 14, the long-side first end portion 16 and the second end portion 17 have an adhesive layer 19 along the respective end portions 16 and 17. On the other hand, the end of the short side of the back surface of the housing portion constituting surface portion 14 does not have the adhesive layer 19 and two opening portions 20 are formed between it and the back sheet 25. Therefore, the accommodation areas 21 are formed inside the adhesive layers 19, and the openings 20 at both ends communicate with the accommodation areas 21. The accommodating bag 210 is an adhesive layer in which a pressure-sensitive adhesive is applied to the release layer 27 on the surface of the back sheet body 24 and the end portions 16 and 17 excluding the accommodating region 21 in the coating portion of the accommodating bag manufacturing apparatus. 19 is formed. Other configurations are the same as the accommodation bag 10.

As shown in FIG. 5, in the accommodation bag 310, as compared with the accommodation bag 10, the attachment portion 12 is connected to only one end of the accommodation portion 11. In the storage bag 310, the release layer 27 is formed by applying the release agent only to one end of the front surface of the back sheet main body 24 and drying it in the coating portion of the storage bag manufacturing apparatus. Other configurations are the same as the accommodation bag 10.

As shown in FIG. 6A, the accommodation bag 410 does not have the adhesive layer 19 on the end portion 18 as compared with the accommodation bag 10. The accommodation bag 10 is formed with the front sheet 13 and the back sheet 25 in a tubular shape, and thus the accommodation section 11 having two accommodation areas 21 is formed therebetween. Of the four end portions on the back surface of the housing portion constituting surface portion 14, the first end portion 16 of the long side, the second end portion 17 and the intermediate portion 28 formed between the end portions 16 and 17 are provided with the adhesive layer 19. Have The intermediate portion 28 is parallel to the respective end portions 16 and 17, and is formed substantially in the middle of the respective end portions 16 and 17. The accommodation area 21 is formed between the intermediate portion 28 and the end portions 16 and 17, respectively. On the other hand, the short-side end portion of the back surface of the housing portion constituting surface portion 14 does not have the adhesive layer 19, and a plurality of openings 20 are formed between the back sheet 25 and the back sheet 25.

The storage bag 410 includes, in the coating portion of the storage bag manufacturing apparatus, the release layer 27 on the surface of the back sheet main body 24, the respective end portions 16 and 17 excluding the storage area 21, and the end portions 16 and 17 substantially. An adhesive layer 19 is formed by applying a pressure-sensitive adhesive to an intermediate portion 28 that is in the middle and is spaced apart from the end portions 16 and 17 and is parallel to the end portions 16 and 17. In the laminating section, when the front sheet 13 is attached to the back sheet main body 24 via the adhesive layer 22 and the adhesive layer 19, a portion surrounded by the first end portion 16 and the intermediate portion 28 and a second end portion 17 are formed. The area surrounded by the intermediate portion 28 and the intermediate portion 28 becomes the accommodation area 21, respectively. Other configurations are the same as the accommodation bag 10.

As shown in FIG. 6B, the accommodation bag 510 does not have the adhesive layer 19 on the end portion 18 as compared with the accommodation bag 10. The accommodation bag 10 is formed with the front sheet 13 and the back sheet 25 in a tubular shape, and thus the accommodation section 11 having two accommodation areas 21 is formed therebetween. Of the four end portions of the back surface of the housing portion constituting surface portion 14, the long side first end portion 16, the second end portion 17 and the intermediate portion 28 formed between the end portions 16 and 17 are adhesive layers. Have nineteen. The intermediate portion 28 is formed at a right angle with respect to each of the end portions 16 and 17, and is formed substantially in the middle of the accommodation portion constituting surface portion 14. The accommodation area 21 is formed between the intermediate portion 28 and the end portions 16 and 17, respectively. On the other hand, the end of the short side of the back surface of the housing portion constituting surface portion 14 does not have the adhesive layer 19 and two opening portions 20 are formed between it and the back sheet 25.

The storage bag 510 is provided in the coating portion of the storage bag manufacturing apparatus in the middle of the release layer 27 on the surface of the back sheet body 24, the respective end portions 16 and 17 excluding the storage area 21, and the storage portion constituting surface portion 14. The adhesive layer 19 is formed by applying a pressure-sensitive adhesive to the intermediate portion 28 that is perpendicular to the end portions 16 and 17 across the end portions 16 and 17. In the laminating section, when the front sheet 13 is attached to the back sheet main body 24 via the adhesive layer 22 and the adhesive layer 19, two places are surrounded by the first end portion 16, the second end portion 17 and the intermediate portion 28. Respectively become the accommodation areas 21. Other configurations are the same as the accommodation bag 10.

The accommodation bags 210, 310, 410, 510 described above also have the same effect as the accommodation bag 10.

In addition, in the accommodating bags 410 and 510, the accommodating portion constituting surface portion 14 and the back sheet 13 are adhered to each other via the adhesive layer 19 of the intermediate layer 28 formed between the ends of the rear surface of the accommodating portion constituting surface portion 14. Therefore, it has a plurality of accommodation areas 21. Therefore, the accommodation target 1 can be accommodated separately for each of the plurality of accommodation regions 21. Even in this case, since the accommodating bags 410 and 510 have a two-layer structure as a whole, the material cost is lower than that of a three-layer structure. Further, according to the method of manufacturing the accommodation bag, the adhesive is applied to the release layer 27 on the surface of the back sheet main body 24 and the end portions 16 and 17 excluding the accommodation area 21 as well as the intermediate portion 28 at the same time. Therefore, the storage bags 410 and 510 can be manufactured by simplifying the process.

In each of the above-described embodiments, the application of the pressure-sensitive adhesive may be, for example, a hot melt type or a solvent type. Further, the adhesive portion may be, for example, a liquid adhesive, a hot melt adhesive, heat sealing, or ultrasonic welding. Moreover, different kinds of adhesives may be used for the adhesive layer 22 and the adhesive layer 19. Further, the procedure of forming the adhesive layer 22 on the release layer 27 and the procedure of forming the adhesive layer 19 at each end portion on the surface of the back sheet main body 24 may be separately performed. You can come first. In addition, the position of the intermediate portion 28 in the accommodation bags 410 and 510 is arbitrary, and for example, it may be near one side instead of the middle, or may be formed obliquely. Further, the number of intermediate portions 28 is also arbitrary. The size of the accommodation areas 21 changes according to the arrangement of the intermediate portions 28, and the number of the accommodation areas 21 changes according to the number of the intermediate portions 28.
In addition to the transparent film, paper may be used for the front sheet 13. A backing sheet or film having a barrier layer may be used for the back sheet body 24. However, in the case where both the front sheet 13 and the back sheet main body 24 are made of a material having no moisture permeability, for example, films are used for both, the hot-melt adhesive is used or the adhesive containing a solvent is used. It is better to go through a drying process before laminating.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. The present invention can be modified in various ways without departing from the scope of the claims.

1 accommodation target 2 boxes (attachment target)
10, 210, 310, 410, 510 Storage bag 11 Storage portion 12 Adhesive portion 13 Front sheet 14 Storage portion constituent surface portion 15 Adhesive portion constituent surface portion 16 First end portion 17 Second end portion 18 Third end portion 19 Adhesive layer (Adhesive part)
20 Opening Area 21 Storage Area 22 Adhesive Layer 23 Grip Allowance 24 Back Sheet Main Body 25 Back Sheet 26 Release Sheet 27 Release Layer 28 Intermediate Section

Claims (12)

A storage bag having a storage portion for storing the storage target, and a sticking portion to be attached to the sticking target,
The storage portion has a storage area between the front sheet and the back sheet,
A release sheet adjacent to the back sheet is attached to the back surface of the front sheet via an adhesive layer, whereby the attachment portion is formed.
A storage bag characterized in that. The front sheet has a housing portion constituting surface portion and an attaching portion constituting surface portion connected to the housing portion constituting surface portion,
The accommodation portion constituting surface portion and the back sheet are adhered to each other via an adhesive portion provided at an end portion of the back surface of the accommodation portion constituting surface portion, and the back sheet and the other end portion of the back surface of the accommodation portion constituting surface portion. An opening is formed between
The release sheet is attached to the attaching portion constituting surface portion via the adhesive layer provided on the back surface of the attaching portion constituting surface portion,
The accommodation bag according to claim 1, wherein: Through the adhesive portion provided between the ends of the back surface of the housing portion constituting surface portion, the housing portion constituting surface portion and the back sheet are bonded, thereby having a plurality of the housing regions,
The accommodation bag according to claim 2, wherein Having a release layer impregnated on the surface of the release sheet having no barrier layer,
The accommodation bag according to any one of claims 1 to 3, which is characterized in that. The front sheet is transparent,
The accommodation bag according to any one of claims 1 to 4, which is characterized in that. The affixing portion is adjacent to the opening of the accommodating portion,
The accommodation bag according to any one of claims 1 to 5, characterized in that: A step of forming a release layer by applying a release agent to one end or both ends of the surface of the back sheet body and drying the release layer,
A step of forming an adhesive layer by applying an adhesive on the release layer,
A step of forming an adhesive portion on the end portion of the back sheet body excluding the release layer,
A step of attaching a front sheet to the back sheet body via the adhesive layer and the adhesive portion,
Through a step of cutting between the adhesive layer and the adhesive portion in the back sheet body,
A method of manufacturing a storage bag, comprising: In the procedure of forming the adhesive portion, an adhesive portion is formed between the ends of the back sheet body excluding the release layer,
In the procedure of attaching the front sheet to the back sheet body via the adhesive layer and the adhesive portion, forming a single or a plurality of accommodation areas,
The method for manufacturing a storage bag according to claim 7, wherein. The adhesive portion is formed by applying the adhesive.
The method for manufacturing a storage bag according to claim 7 or 8, characterized in that. Through the steps of forming the adhesive layer and the step of forming the adhesive portion at the same time,
The method for manufacturing a storage bag according to any one of claims 7 to 9, wherein Using paper without a barrier layer on the back sheet body,
Drying the release agent by irradiating with ultraviolet rays,
The method for manufacturing a storage bag according to any one of claims 7 to 10, wherein: Without going through the procedure of drying the adhesive,
The method of manufacturing a storage bag according to any one of claims 7 to 11, characterized in that.

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