WO2024147309A1 - ジッパーテープ付き容器、ジッパーテープ付き容器の製造方法およびジッパーテープ - Google Patents

ジッパーテープ付き容器、ジッパーテープ付き容器の製造方法およびジッパーテープ Download PDF

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Publication number
WO2024147309A1
WO2024147309A1 PCT/JP2023/046530 JP2023046530W WO2024147309A1 WO 2024147309 A1 WO2024147309 A1 WO 2024147309A1 JP 2023046530 W JP2023046530 W JP 2023046530W WO 2024147309 A1 WO2024147309 A1 WO 2024147309A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaped base
zipper tape
belt
storage space
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/046530
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English (en)
French (fr)
Japanese (ja)
Inventor
匠 戸▲高▼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Unitech Co Ltd
Original Assignee
Idemitsu Unitech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Unitech Co Ltd filed Critical Idemitsu Unitech Co Ltd
Publication of WO2024147309A1 publication Critical patent/WO2024147309A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package

Definitions

  • the present invention aims to provide a container with zipper tape, a method for manufacturing a container with zipper tape, and a zipper tape that can be sufficiently degassed even when the internal pressure of the bag increases due to heating.
  • the second strip base includes, in the longitudinal direction, a first section in which a deaeration structure is formed on the side opposite the storage space from the second engagement portion, and a second section in which the deaeration structure is not formed, and both the first section and the second section are not joined to the second surface on the storage space side of the second engagement portion.
  • a zipper tape comprising a first strip base, a second strip base, and a first engagement portion and a second engagement portion protruding from the first strip base and the second strip base, respectively, and engageable with each other, wherein the second strip base has a weakened portion in at least a portion of one end side of the second engagement portion.
  • the weakened portions are cut portions or thin-walled portions.
  • the manufacturing method for a container with zipper tape, and the zipper tape according to the present invention when the internal pressure of the bag increases due to heating, the zipper tape does not bend even in the section where the degassing structure is formed. Therefore, the gap between the zipper tape and the film forming the container is not blocked, and the storage space and the external space can communicate, making it possible to degas sufficiently.
  • the zipper tape 20 is joined to the films 11A and 11B.
  • both ends in the longitudinal direction of the zipper tape 20 are flattened point seal portions (not shown).
  • notches 15 are cut into the bag body 10 between the positions where both ends in the longitudinal direction of the zipper tape 20 intersect with the periphery of the side seal portion 12 of the bag body 10, and the position where the top seal portion 13 intersects with the periphery of the side seal portion 12.
  • the bag 1 may be used as a microwave cooking container for heating contents such as food using a microwave oven.
  • contents such as food using a microwave oven.
  • the internal pressure of the storage space 10C increases due to steam S generated from the contents.
  • the steam S is discharged to the external space from a deaeration structure formed so that the storage space 10C can be connected to the external space while the male engaging portion 21B and the female engaging portion 22B are engaged with each other at the engaging portion 23 of the zipper tape 20.
  • the deaeration structure is a structure that connects the storage space C side of the female side belt-like base 22A, which is the second belt-like base, to the side opposite the storage space C, or a structure that connects the storage space C side of the female side belt-like base 22A to the side opposite the storage space C when the pressure on the storage space C side of the female side belt-like base 22A is higher than the pressure on the side opposite the storage space C.
  • the "storage space side of the second belt-like base” refers to the side closer to the storage space C than the female side seal portion 22D between the female member 22 and the film 11B, that is, the side where a space is formed between the female member 22 and the film 11B.
  • the steam-permeable structure is formed in section D in the longitudinal direction of the female side band-shaped base 22A of the bag body 10, which is the first section.
  • Section D may be one location as shown in the figure, or it may be multiple locations. In sections other than section D (second sections), the steam-permeable structure is not formed.
  • Section D is preferably 3 mm or more. Also, from the perspective of efficiency in cooking using a microwave oven or the like, section D is preferably less than half the width of the bag body 10.
  • section D the female side belt-like base 22A is not joined to the film 11B on the storage space 10C side of the female engagement portion 22B and on the side opposite the storage space 10C.
  • a gap is created between the female side belt-like base 22A and the film 11B due to the increase in internal pressure of the storage space 10C caused by heating the bag body 1. This allows the storage space 10C to communicate with the outside space, and steam S is discharged.
  • the zipper tape 20 is formed, for example, using a polyolefin resin.
  • a polyolefin resin for example, a polyethylene resin such as low-density polyethylene or linear low-density polyethylene, or a polypropylene resin is preferable.
  • a polypropylene resin homopolypropylene (H-PP), block polypropylene (B-PP), random polypropylene (R-PP), propylene-ethylene-butene 1 random terpolymer, etc. can be used.
  • the polyolefin resin is not limited to a resin derived from fossil fuels, but may be an environmentally friendly bioplastic (a polyolefin resin such as biopolyethylene or biopolypropylene derived from biomass), or may be a mixture of a resin derived from fossil fuels and a bioplastic.
  • the material of the zipper tape 20 may contain known additives, such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, or a colorant, as necessary.
  • FIG. 3A is a diagram for explaining the behavior of the bag body 1 when steam passes through it, which is related to the cross section of line IIA-IIA.
  • Fig. 3B is a diagram for explaining the behavior of the bag body 1 when steam passes through it, which is related to the cross section of line IIB-IIB.
  • the internal pressure of the storage space 10C increases due to steam S generated from the contents when heated.
  • the female side belt-shaped base 22A and the film 11B are joined by the female side seal portion 22D on the side opposite the storage space 10C of the female engagement portion 22B. Therefore, no gap is created between the female member 22 and the film 11B due to the internal pressure of the storage space 10C, and the storage space 10C does not communicate with the external space, so steam S is not discharged.
  • zipper tape 90 has a steam passage structure formed on the male member 91 side.
  • Zipper tape 90 includes male member 91 and female member 92 which are engageable and detachable with each other at engagement portion 93.
  • Male member 91 and female member 92 are joined to the opposing inner surfaces of films 81A and 81B, respectively.
  • the female side belt-like base 22A is not joined to the film 11B on the storage space 10C side of the female engagement portion 22B in both section D and sections other than section D. Therefore, when the internal pressure of the storage space 10C increases due to heating of the bag body 1, the female side belt-like base 22A does not bend as in the conventional example, even in section D. Therefore, as shown in Figure 3A, the female side belt-like base 22A does not block the gap between the female member 22 and the film 11B, allowing the storage space 10C to communicate with the external space, and steam S can be sufficiently discharged.
  • [Modification 1] 4 is a front view of the bag body 1 according to a modified example of this embodiment. As shown in the figure, in the section D where the vapor-permeable structure is formed, a cut portion 22E, which is a weakened portion, is formed between the engagement portion 23 of the female side belt-like base 22A and the female side seal portion 22D.
  • the female side belt-like base 22A is joined to the film 11B by the female side seal portion 22D on the opposite side of the storage space 10C with respect to the engagement portion 23.
  • the cut portion 22E may be continuous in the longitudinal direction of the female side belt-like base 22A, or may be intermittent in the form of perforations.
  • the configuration of the bag body 1 other than the above is the same as that of the bag body 1 according to the embodiment described above.
  • FIG. 5 is a diagram for explaining the behavior of the bag body 1 according to the example of FIG. 4 during steam passage.
  • the female belt-like base 22A is joined to the film 11B by the female seal portion 22D on the opposite side of the storage space 10C to the engaging portion 23. Therefore, the storage space 10C is connected to the outside space by the cut portion 22E, and steam S is discharged.
  • the female side belt-shaped base 22A and the film 11B are joined in section D as well, so the seal bar used for joining can be formed uniformly and alignment during joining is not required.
  • FIG. 2 Another modified example of the zipper tape 20 according to the present embodiment will be described with reference to FIG.
  • the female side belt-like base 22A is joined to the film 11B by a female side seal portion 22D on the opposite side of the storage space 10C with respect to the engagement portion 23.
  • the female side belt-like base 22A has a thin-walled portion 22F, which is a weakened portion, formed between the engagement portion 23 and the female side seal portion 22D.
  • the configuration of the bag body 1 other than the above is the same as that of the bag body 1 according to the embodiment described above.
  • FIG. 7 is a diagram for explaining the behavior of the bag body 1 according to the example of FIG. 6 during steam passage.
  • the thin-walled portion 22F breaks. Therefore, as shown in the figure, in section D, the storage space 10C communicates with the outside space through an opening formed by breaking the thin-walled portion 22F, and the steam S is discharged.
  • the female side belt-like base 22A and the film 11B are joined even in section D, so the seal bar used for joining can be formed uniformly and alignment during joining is not required. Also, because the storage space 10C does not communicate with the external space before the thin-walled portion 22F breaks, the easy-peel layer 21E is not necessarily required.
  • the zipper tape 20 shown in Fig. 8 has a male hook portion 24 as a third engagement portion protruding from the male belt-like base portion 21A on the storage space 10C side of the male engagement portion 21B.
  • the zipper tape 20 also has a female hook portion 25 as a fourth engagement portion protruding from the female belt-like base portion 22A on the storage space 10C side of the female engagement portion 22B.
  • the male hook portion 24 and the female hook portion 25 are a pair of hook-shaped engagement portions that can engage with each other.
  • the male hook portion 24 includes a male claw 24A that protrudes toward the storage space 10C
  • the female hook portion 25 includes a female claw 25A with which the male claw 24A can engage.
  • the engaging portion 23 includes a male hook portion 24 and a female hook portion 25 in addition to a male engaging portion 21B and a female engaging portion 22B, but multiple pairs of male engaging portions 21B and female engaging portions 22B may be included.
  • FIG. 9 is a perspective view of a three-sided bag making machine 600 for manufacturing a bag with a zipper tape according to an embodiment of the present invention.
  • a film supplying section 601 unwinds the film 11 wound around a film roll 602, and cuts it in the width direction using a cutting blade (not shown) to form a pair of films 11A and 11B facing each other.
  • the films 11A and 11B may be formed by folding the film 11 without cutting it.
  • a tape supplying section 603 unwinds the zipper tape 20 wound around a tape roll 604, and supplies it to a predetermined position between the films 11A and 11B using a guide member (not shown).
  • a seal bar 605 bonds the male side belt-like base 21A and the female side belt-like base 22A of the zipper tape 20 to the films 11A and 11B of the film 11, respectively.
  • an easy peel layer 21E may be formed on a part of the extension portion 21C and bonded to the film 11B.
  • the joining may be performed by heat sealing, ultrasonic welding, or bonding using an adhesive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Bag Frames (AREA)
  • Package Specialized In Special Use (AREA)
PCT/JP2023/046530 2023-01-06 2023-12-26 ジッパーテープ付き容器、ジッパーテープ付き容器の製造方法およびジッパーテープ Ceased WO2024147309A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023-001161 2023-01-06
JP2023001161A JP2024097599A (ja) 2023-01-06 2023-01-06 ジッパーテープ付き容器、ジッパーテープ付き容器の製造方法およびジッパーテープ

Publications (1)

Publication Number Publication Date
WO2024147309A1 true WO2024147309A1 (ja) 2024-07-11

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PCT/JP2023/046530 Ceased WO2024147309A1 (ja) 2023-01-06 2023-12-26 ジッパーテープ付き容器、ジッパーテープ付き容器の製造方法およびジッパーテープ

Country Status (3)

Country Link
JP (1) JP2024097599A (enExample)
TW (1) TW202440423A (enExample)
WO (1) WO2024147309A1 (enExample)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040131283A1 (en) * 2002-12-03 2004-07-08 Sprague Paul A. Autoclavable reclosable package
JP2018122931A (ja) * 2017-01-30 2018-08-09 大日本印刷株式会社 電子レンジ加熱用包装体
JP2019064609A (ja) * 2017-09-28 2019-04-25 株式会社フジシール ジッパー付き包装袋
JP2021160749A (ja) * 2020-03-31 2021-10-11 大日本印刷株式会社 パウチ
JP2022105068A (ja) * 2016-01-07 2022-07-12 出光ユニテック株式会社 ジッパーテープおよび袋体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040131283A1 (en) * 2002-12-03 2004-07-08 Sprague Paul A. Autoclavable reclosable package
JP2022105068A (ja) * 2016-01-07 2022-07-12 出光ユニテック株式会社 ジッパーテープおよび袋体
JP2018122931A (ja) * 2017-01-30 2018-08-09 大日本印刷株式会社 電子レンジ加熱用包装体
JP2019064609A (ja) * 2017-09-28 2019-04-25 株式会社フジシール ジッパー付き包装袋
JP2021160749A (ja) * 2020-03-31 2021-10-11 大日本印刷株式会社 パウチ

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TW202440423A (zh) 2024-10-16
JP2024097599A (ja) 2024-07-19

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