JP2019142540A - Packaging bag resealable by chuck - Google Patents

Abstract

To provide a resealable packaging bag with use of a chuck which easily releases fitting of a chuck, has a simple structure, has no hindrance to putting in and out of a storage article, and has no restriction to a storage method for an original article.SOLUTION: A resealable packaging bag 1 in which a lip 12 covering a chuck 16 which is provided on an upper opening part inner surface of a bag body comprising a front sheet 10 and a back sheet 11, is so provided as to extend from the back sheet 11, and the lip 12 is bonded a surface of the front sheet 10 by an adhesive member 17 or a heat-sealing of a side part, thereby sealing the chuck 16. In this packaging bag, the lip 12 is provided with a perforation 18 as easy excision means at a position deviated from a front sheet upper end 10a at the upper opening part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to packaging bags for various articles, and more particularly to a resealable packaging bag using a chuck as a sealing means.

  The packaging bag for various articles is used for storing various articles, sealing the opening to protect the stored items, and for storage, transportation, display, display, and the like. In this case, after opening the packaging bag and removing the stored item from the opening, the packaging bag is not only discarded as an unnecessary item, but also a part of the stored item is extracted and the remaining stored item is stored in the packaging bag again. It is also used to reseal and preserve the opening. In particular, in sanitary products such as sanitary masks, multiple sheets are often stored in a single packaging bag. After opening, one sheet is taken out for wearing, and the remainder is stored in a packaging bag to prevent contamination. Then reseal and save. In addition, when multiple items such as dry matter and print paper that are altered or deteriorated due to humidity are stored, only the necessary quantity can be taken out and the remaining items can be resealed and stored in the same way. Many.

  As a sealing means in the re-sealable packaging bag as described above, a chuck that seals an opening by fitting a plastic convex tape and a concave tape is used. The chuck can freely fit and remove both tapes, and the opening and closing of the packaging bag can be opened and closed easily and reliably by using the chuck. It is often used. However, since the opening portion can be easily opened and closed by the chuck, the packaging bag is opened when the display is used for display or display, and a malicious operation is likely to be applied to the goods that are stored. For this reason, in such a packaging bag, a sealing means is further provided to the chuck as a sealing means so that the opening can be prevented or can be discriminated even when opened.

  FIG. 10 shows a resealable packaging bag 7 using a conventional chuck. This packaging bag 7 forms a bag body having the storage part 2 by joining both side parts 74 and the bottom part 73 of the top sheet 70 and the back sheet 71, a chuck 16 is provided at the upper opening, and above that A sealing portion 75 is provided as a sealing means for preventing the chuck 16 from being opened and a malicious operation being applied. The blocking portion 75 is provided with a perforation 78 extending in parallel with the chuck 16 to both sides and cuts 79 on both sides. In order to open the packaging bag 7, as shown in FIG. 9 (c) using the perforation 78 and the notch 79, the sealing portion 75 is cut out, and then the convex tape 16a and concave tape of the chuck 16 are removed. The mating with 16b is released, both tapes are released, the chuck is opened and opened. In this case, it is not easy to open between the cut ends 78a and 78b of the opening after cutting off the blocking portion 75 by the notch 79 and the perforation 78 with a fingertip to release the fitting of each tape. . In this case, it is conceivable that the positions of the cut ends 78a and 78b are shifted by shifting the positions of the perforations 78 provided on the top sheet 70 and the back sheet 71, respectively, so that the chuck can be easily opened with the fingertips. When manufacturing the bag, it is difficult to provide the positions of the perforations on the front surface and the back surface so as to easily open the chuck, and it is difficult to perform the actual manufacturing.

  Patent Document 1 discloses a resealable packaging bag that uses a chuck (zipper). In this packaging bag, a chuck that is a resealable sealing means is further provided with a sealing portion (sealing portion). Sealing and opening the packaging bag is performed by cutting off the sealing portion (sealing portion) and then releasing the fitting of the chuck (see paragraphs 0037 to 0046 and FIGS. 1 to 3 of this document). . However, in this packaging bag, the sealing portion is cut out in the same manner as in FIG. 9, and similarly, the operation of releasing the fitting of the chuck is not easy.

  Further, in the packaging bag described above, the sealing portion also serves as a header, and the header is often provided with a hook hole (hanging means), and when opening, the sealing portion that also serves as the header is provided. It is also proposed to leave. In Patent Document 2, instead of cutting out the header which is a sealing portion, two cuts are made only in the surface film in the vicinity of the lower portion of the header portion, and an opening is formed by cutting out only the surface film in a band shape. There is shown a packaging bag with a header that opens and closes a chuck using an opening to open and reseal a packaging bag (see claims of this document and FIGS. 1 and 2). Although this packaging bag is easier to open than the packaging bag described above, there is a limit to the width of the opening to be cut in a strip shape, and it has been difficult to easily release the chuck fitting.

  In any of the above packaging bags, since the chuck and the sealing portion for sealing the chuck are provided in advance, it is impossible to close the chuck and provide the sealing portion after storing the article. The storage is limited to the bottom storage stored from the bottom. Therefore, depending on the properties of the stored items, there may be a problem in the bonding and sealing work of the bottom after storage, and the stored items may be restricted.

JP 2005-22723 A JP 2008-230666 A

  The problem to be solved by the present invention is that, in a re-sealable packaging bag using a chuck, it is easy to release the fitting of the chuck, has a simple structure, and has no hindrance to putting in and out the stored items. It is to provide a packaging bag with no limitation on the storage method.

  In the resealable packaging bag of the present invention, a lip that covers a chuck provided on the inner surface of the upper opening of the bag body composed of a top sheet and a back sheet is provided extending from the back sheet, and the lip is an adhesive member or A packaging bag that is attached to the surface of the topsheet by heat fusion at the side to seal the chuck, and the lip is provided with easy-cutting means at a position that is offset from the top end of the topsheet at the upper opening. It is characterized by that.

  In the re-sealable packaging bag, a storage pocket is preferably provided on the outer side or the inner side of the bag main body, and the back sheet side of the convex tape or concave tape constituting the chuck. It is preferable that one of the tapes provided on the flange is expanded only on one side of the upper flange.

  In addition, it is preferable that a header extending continuously upward is provided on the back sheet, and the lip is provided at a lower end sealing portion of the header. Further, the easy cutting means is a perforation. preferable. And it is also preferable that a silver-based antibacterial agent is blended in the top sheet and the back sheet.

  In the packaging bag of the present invention, the lip that seals the chuck is attached to the surface sheet by heat bonding of the adhesive member or the side portion. Therefore, the adhesive is peeled off to release the seal, and then the chuck is opened to open the lip. However, since the lip is provided with easy-cutting means, when the lip is in the way of putting in and out the stored items, the lip can be cut using this easy-cutting means. And even if the lip is cut, the easy cutting means is arranged at a position deviated from the upper end of the top sheet in the upper opening, so that the cut end of the lip and the upper end of the top sheet are shifted. Therefore, the chuck can be easily opened by releasing the fitting of the chuck with a fingertip.

  In addition, the packaging bag provided with a storage pocket is suitably used as a packaging bag for sanitary masks. Not only can the unused sanitary mask be resealed and stored, but the sanitary mask in use can be stored in the storage pocket. Because it can be stored separately from unused sanitary masks, it can be used preferably as sanitary mask packaging and storage bags, and it can be stored by blending silver antibacterial agents into the sheets that make up the bag body. It is also possible to prevent contamination by bacteria at the part.

  And when using a chuck with a tape whose flange width is expanded only on one side on the upper side, the expanded flange can be gripped with a fingertip, and the opening and closing operation of the chuck can be made easier, and the packaging bag The hook hole can be strengthened by providing a hook hole to suspend the hook in the expanded flange portion.

  Further, since the chuck is sealed with the lip by sticking the adhesive member or the side part by heat fusion, the article is stored by opening the chuck and then sticking the lip to the top sheet. Therefore, the storage of articles is not limited to bottoming, and the above-described problems do not occur.

The front model explanatory drawing and cross-sectional schematic explanatory drawing of the resealable packaging bag which stuck the lip | stick on the surface of the surface sheet with the adhesive member. The front model explanatory drawing and cross-sectional schematic explanatory drawing of the resealable packaging bag which stuck the side part of the lip | rip to the surface of the surface sheet by heat sealing | fusion. Cross-sectional model explanatory drawing of the upper part of the packaging bag which provided the storage pocket in the outer side of the bag main body. Cross-sectional model explanatory drawing of the Example from which the shape of the said storage pocket differs. The schematic explanatory drawing which shows the state which accommodated the mask in the storage bag shown in FIG. Cross-sectional schematic explanatory drawing of the upper part of the packaging bag which provided the storage pocket inside the bag main body. Cross-sectional schematic explanatory drawing of the chuck which expanded the normal chuck | zipper and the flange width only to the upper one side. Cross-sectional model explanatory drawing of the chuck | zipper and lip in the packaging bag which attached the chuck | zipper which extended the flange width | variety. Cross-sectional schematic explanatory drawing of the packaging bag which provided the header. The schematic explanatory drawing of the resealable packaging bag using the conventional chuck | zipper.

  Detailed description will be given below with reference to the drawings according to embodiments of the present invention. FIG. 1 schematically shows a resealable packaging bag 1 according to the present invention. FIG. 1A is a schematic plan view, and FIG. 1B is a schematic cross-sectional view. The bag body of the packaging bag 1 is composed of a front sheet 10 and a back sheet 11, and the bottom 13 and both side parts 14 are sealed, and a bag shape having an upper part as an opening is formed. Sealing may be performed by heat sealing or bonding with an adhesive. In the embodiment shown in the figure, an example in which the front sheet 10 and the back sheet 11 are sealed at the bottom part 13 is shown, but these sheets are folded at the bottom part 13 using continuous sheets, and both sides are used. The bag body may be formed by sealing the portion 14.

  On the inner surface of the upper opening of the packaging bag 1, a chuck 16 composed of a convex tape 16 a and a concave tape 16 b is provided. FIG. 1 shows a state in which both tapes are fitted and the chuck 16 is closed. A lip 12 that covers and seals the chuck 16 is provided by extending from the back tape 11 to form a sealing portion 15. In FIG. 1, the lip 12 is stuck to the surface of the topsheet 10 by the adhesive member 17 provided in the vicinity of the lip tip 12a, and the chuck 16 is sealed. The lip 12 can also be attached by heat-sealing both side portions 14a of the lip 12 as in the packaging bag 1a shown in FIG.

  At the time of opening, the lip 12 is peeled off from the surface sheet 10, the fitting between the convex tape 16a and the concave tape 16b is released, the chuck 16 is opened and opened, and the stored item can be taken out. A part of the stored item can be left inside, and the chuck 16 can be closed and resealed by fitting each tape. As shown in FIG. 1 (c), the lip 12 is provided with a perforation 18 as an easy excision means. 12 can be excised.

  Further, the perforation 18 as a cutting means applied to the lip 12 is provided at a position deviating from the upper end 10a of the front sheet. When the lip 12 is cut from the perforation 18, the back sheet generated by this cutting. Since it is located at a position deviated from the cut end 18a on the 11th side and the upper end 10a of the front sheet, put a fingertip between these ends, and release the fitting between the convex tape 16a and the concave tape 16b, The chuck 16 can be easily opened. The perforation 18 is preferably provided at a position shifted from the front sheet upper end 10a by at least 5 mm or more, preferably 8 mm or more.

  In the packaging bag 1, the chuck 16 is sealed to prevent malicious operations on the stored items. The lip 12 is adhered to the surface of the surface sheet 10 by the adhesive member 17. In the packaging bag 1 a shown in FIG. This can be done by sticking both sides 14a by heat fusion. For this reason, the article can be stored by opening the chuck 16, and after the storage, the chuck 16 is closed, and then the lip 12 can be adhered to the surface of the surface sheet by adhesion or fusion and sealed. Also, after closing the chuck 16 and sealing the chuck 16 with the lip 12, the article is stored from the bottom before the bottom 13 is sealed, and then sealed by so-called bottom insertion. it can. FIG. 2 shows a state in which the bottom 13 of the packaging bag 1a is opened without being sealed, the chuck 16 is closed, both sides 14a of the lip 12 are heat-sealed, and the chuck 16 is sealed. In this state, storage by bottoming can be performed, and after storing the article, the bottom 13 is sealed by heat fusion or the like, and the stored product is packaged. In any case, after the chuck 16 is opened and a part of the stored item is taken out and used, an unused item is stored in a packaging bag, and the chuck 16 is closed to allow resealing.

  As described above, the covering sealing of the chuck 16 in the packaging bag 1 or 1a is performed by sticking the lip 12 to the surface of the topsheet 10 by heat-sealing both the side portions 14a of the adhesive member 17 or the lip 12. It can be easily peeled off from the adhesive member 17 and cut at the heat-sealed portion, and the lip 12 can be stuck. In the case of peeling, unlike the opening / closing operation of the chuck 16, a trace of the operation remains, and it is possible to detect the presence or absence of a malicious operation.

  3 and 4 show the upper part of the packaging bag 4 or 5 in which the storage pocket 3 by the pocket sheet 20 or 21 is provided on the outer side of the bag body composed of the front sheet 10 and the back sheet 11 and adjacent to the storage part 2. It is a cross-sectional schematic explanatory drawing. The shape of the storage pocket 3 is such that the pocket sheet upper end 20a is the same height as the front sheet upper end 10a (FIG. 3) or the pocket sheet upper end 21a is lower than the front sheet upper end 10a (FIG. 4). Good. Convex tape 16a and concave tape 16b are provided in the upper opening of the storage part 2 of these packaging bags 4 or 5, and a chuck comprising these tapes, a front sheet upper end 10a, and a pocket sheet upper end 20a or 21a, A lip 12 that covers and seals the back sheet 11 is provided continuously. The lip 12 is provided with a perforation 18 as an easy excision means, and further, an adhesive member 17 is provided on the lip 12, and the lip 12 is adhered to the surface of the pocket sheet 20 or 21 by the adhesive member 17 and chucked. Blockade.

  In these packaging bags, as described above, the lip 12 is cut off from the perforation 18 when it becomes an obstacle to taking in and out the stored items. The perforation 18 is provided at a position deviated from the position of the top end 10a of the top sheet. After the lip 12 is cut off, the release of the fitting between the convex tape 16a and the concave tape 16b can be easily operated.

  The packaging bag with a storage pocket shown in FIGS. 3 and 4 is preferably used for packaging a sanitary mask. FIG. 5 shows a packaging bag 5a in which a sanitary mask is stored in the packaging bag 5 shown in FIG. An unused sanitary mask 30 is stored in the storage unit 2, a sanitary mask 31 in use is stored in the storage pocket 3, the lip is cut off, the chuck 16 is opened, and the convex tape 16 a and the concave tape 16 a are recessed. The fitting of the strip tape 16b is released. The unused sanitary mask 30 is stored in the storage unit 2 in this manner, and then stored by closing the chuck 16 by fitting the convex tape 16a and the concave tape 16b. The used sanitary mask 31 is stored in the storage pocket 3, separated from the unused sanitary mask 30, and stored while preventing contamination in preparation for reuse. When the unused sanitary mask mask 30 that is being stored after the chuck 16 is closed is taken out, the top edge 10a of the top sheet and the cut end 18a of the perforation are shifted from each other. The fitting with 16b can be easily released and opened with a fingertip.

  In FIG. 6, the packaging bag 6 which provided the storage pocket inside the bag main body which consists of the front sheet | seat 10 and the back sheet | seat 11 is shown. In the packaging bag 6, the storage pocket 3 is provided adjacent to the storage portion 2 by the pocket sheet 22. The pocket sheet upper end 22a is set to be lower than the position where the pocket sheet upper end 22a is provided so as not to prevent the fitting between the convex tape 16a and the concave tape 16b. And the perforation 18 is provided in the same position on the lip | rip 12 like the above-mentioned packaging bags 1, 4, and 5, and it can cut out. And even after cutting off the lip 12, in the packaging bag 6, the storage pocket 3 has a structure that can be resealed together with the storage portion 2 by fitting the convex tape 16a and the concave tape 16b. . And since the position of the front sheet | seat upper end 10a and the perforation 18 is shifted and installed, even after the lip 12 is excised, the fitting of the tape can be easily released. This type of packaging bag is also preferably used for packaging sanitary masks.

FIG. 7 is a schematic cross-sectional explanatory diagram of a normal chuck 16 and an expanded flange chuck 41 in which the flange width is expanded only on one side on the upper side. In a typical chuck 16, also tape width either a ridge tape 16a and concave tape 16b is has a W _0, while the flange width other than projections and concave are also the same, the upper Enhanced flange chuck 41 flange width on one side only and is extended, the tape width has a W _1, the flange width of the upper extension flange 41c is extended by W ₁ -W _0.

  A packaging bag 8 provided with the above-described expansion flange 41 is shown in FIG. In the packaging bag 8, the back sheet 11 is provided with a convex tape 41a having an expanded flange width, and the concave tape 41 having a normal flange width is provided on the front sheet 10 so that the opening of the storage unit 2 can be resealed. It is said. In this packaging bag 8, after opening the lip 12 from the perforation, the expansion flange 41c is present in order to release the fitting between the convex tape 41a and the concave tape 41b. it can. In the example shown in FIG. 8, the extension flange is provided on the back tape and disposed on the back film, but the extension flange may be provided on the back tape and provided on the back film side. In each of the packaging bags described above, the example in which the ridge tape is provided on the back film side has been shown, but the arrangement of the ridge tape and the ridge tape is not particularly limited in these packaging bags as well.

  The packaging bag 9 shown in FIG. 9 is provided with a header 50 that is continuous with the back sheet 11, and is provided by stretching the back sheet 11, bending it, and sealing it with the lower end sealing part 51. Alternatively, a header 50 created separately may be attached to the tip of the back sheet 11 by heat fusion or adhesive. The lower end sealing part 51 is constituted by heat fusion or adhesion by an adhesive, and a lip 52 is provided here. The lip 52 is provided with a perforation 53 as an easy excision means in the vicinity of the lower end sealing portion 51, the adhesive member 17 is provided at the tip portion, and the lip 52 is adhered to the surface of the topsheet 10. When opening, the lip 52 can be cut using the perforation 53 as shown in FIG. 9B. The position at which the perforation 53 is applied is offset from the position of the top end 10a of the topsheet, and after the lip 12 is cut off, the operation of releasing the fitting between the convex tape 16a and the concave tape 16b can be easily performed. In this figure, the lower sealing portion 51 is conceptually shown in this figure, and is formed by heat fusion or adhesion. In practice, the sheets constituting the header are in close contact with each other. The structure is fused or bonded. The header 50 is provided with a label for displaying the name of the stored product, and hanging display means such as a hook hole.

  Examples of the sheet constituting the packaging bag of the present invention include polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyvinyl chloride, polyvinylidene chloride, polyamide, ethylene / vinyl acetate copolymer, ethylene / vinyl alcohol copolymer, and other plastic films. , Paper, and composite sheets thereof, and composite sheets with aluminum foil and the like. Processing these sheets to form the side and bottom of the bag body, the lower end sealing portion of the header, etc. can be performed by a known method such as bonding with an adhesive or thermal fusion, and further, a gusset bag Or a square bottom bag.

  An adhesive is used as an adhesive provided in the vicinity of the tip of the lip and used for an adhesive member for adhering to the surface of the topsheet. As the pressure-sensitive adhesive is also referred to as a pressure-sensitive adhesive, it can be attached by pressure bonding, and is preferably used for sealing the chuck. As the pressure-sensitive adhesive, known pressure-sensitive adhesive compositions such as rubber-based, acrylic-based, and silicone-based can be used. Such a pressure-sensitive adhesive composition can be applied to the surface of the lip in a strip shape, or a pressure-sensitive adhesive composition can be used. A band-like adhesive member can be provided on the surface of the lip by attaching an adhesive tape applied to the substrate.

1, 1a Packaging bag 2 Storage part 3 Storage pocket 4, 5, 6 Packaging bag (with storage pocket)
7 Packaging bag (conventional product) 8 Packaging bag (extended flange chuck)
9 Packaging bag (with header)
10, 70 Front sheet 11, 71 Rear sheet 10a Front sheet upper end 12 Lip 12a Lip tip 13, 73 Bottom 14, 74 Side
14a Side part (lip) 15, 75 Sealed part 16 Chuck 16a Convex tape 16b Concave tape 17 Adhesive member 18, 78 Perforation (easy excision means) 18a, 18b, 78a, 78b Cut end 20, 21, 22 Pocket sheet
20a, 21a, 22a Pocket sheet upper end 30 Sanitary mask (unused) 31 Sanitary mask (in use)
41 Expansion flange chuck 41a Convex tape (with expansion flange)
41b Concave tape 41c Expansion flange 50 Header 51 Lower end sealing part 52 Lip 53 Perforation (easy cutting means)
53a resected end
W ₀ tape width (normal chuck) W ₁ tape width (extended flange chuck)

Claims (6)

  A lip that covers the chuck provided on the inner surface of the upper opening of the bag body made of the top sheet and the back sheet is provided to extend from the back sheet, and the lip is attached to the top sheet by heat bonding of the adhesive member or the side part. A resealable packaging that is attached to the surface and seals the chuck, wherein the lip is provided with an easy-removal means at a position off the upper end of the top sheet at the upper opening. bag.   The resealable packaging bag according to claim 1, wherein a storage pocket is provided outside or inside the bag body.   3. The tape according to claim 1, wherein one of the tapes provided on the back sheet side of the convex tape or the concave tape constituting the chuck has an expanded flange width only on one upper side. Resealable packaging bag.   The header according to claim 1, wherein a header extending continuously upward is provided on the back sheet, and the lip is provided at a lower end sealing portion of the header. Sealable packaging bag.   The resealable packaging bag according to any one of claims 1 to 4, wherein the easy excision means is a perforation.   The resealable packaging bag according to any one of claims 1 to 5, wherein a silver-based antibacterial agent is blended in the top sheet and the back sheet.

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