WO2018008117A1 - Sac d'emballage - Google Patents

Sac d'emballage Download PDF

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Publication number
WO2018008117A1
WO2018008117A1 PCT/JP2016/070056 JP2016070056W WO2018008117A1 WO 2018008117 A1 WO2018008117 A1 WO 2018008117A1 JP 2016070056 W JP2016070056 W JP 2016070056W WO 2018008117 A1 WO2018008117 A1 WO 2018008117A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
packaging bag
adhesive layer
pore
layer film
Prior art date
Application number
PCT/JP2016/070056
Other languages
English (en)
Japanese (ja)
Inventor
昌幸 赤松
将晴 山本
河野　博
嘉寿也 安藝
Original Assignee
日生化学株式会社
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 日生化学株式会社 filed Critical 日生化学株式会社
Priority to JP2016555853A priority Critical patent/JP6063104B1/ja
Priority to PCT/JP2016/070056 priority patent/WO2018008117A1/fr
Publication of WO2018008117A1 publication Critical patent/WO2018008117A1/fr

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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
    • 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

  • Patent Document 3 a packaging bag in which a hole is formed when the internal pressure of the bag is increased by water vapor generated when the processed food or frozen food inside is heated by a microwave oven without providing a hole in the bag in advance.
  • the packaging bag of Patent Document 3 is formed by a film in which a synthetic resin stretched film as an outer layer and a synthetic resin unstretched film as an inner layer are bonded together.
  • a weakly bonded portion is provided by providing a portion (low melting point portion) where a low-melting-point heat sealing agent is applied and bonded or by applying a release agent.
  • a cutting line is engraved at a portion corresponding to the weakly bonded portion.
  • the surface which contacts an outer layer film is adjusted to the surface which has not performed the corona discharge process. For this reason, since it is possible to surely weaken the lamination connection strength and the peeling portion connection strength of the adhesive layer in the outer layer film and the inner layer film as compared with the inner surface connection strength, when the object to be heated is appropriately heated, the outer layer The film can be reliably peeled from the inner layer film.
  • the adhesive layer between the outer layer film and the inner layer film can be adjusted by adjusting the lamination connection strength of the adhesive layer between the outer layer film and the inner layer film to 0.5 to 1.5 N / 15 mm when not heated.
  • connection strength between the pore-forming film F1 and the adhesive layer BL is set so that the adhesive layer BL in the inner film 3 and the cover film F2 in the outer film 4 are laminated. It can be made stronger than the connection strength and the peeled portion connection strength.
  • the packaging bag 1 of this embodiment Since the packaging bag 1 of this embodiment has the above configuration, it functions as follows.
  • the tension applied to the cover film F2 acts as a force for peeling off the inner surface connecting portions of the connecting portions 5 and 10 and a force for peeling the outer layer film 4 (that is, the cover film F2) from the adhesive layer BL in the inner layer film 3. become.
  • the inner layer film 3 including the pore-forming film F1 and the adhesive layer BL, which form a large number of communication holes, is heated. Water can be discharged while confining in a bag. Then, as a property required for the film used as the cover film F2, the property of forming pores is not necessary. Therefore, it becomes possible to use a highly transparent film having excellent printing characteristics as the cover film F2. Furthermore, if back printing is performed on the highly transparent cover film F2 excellent in printability and bonded to the inner layer film 3, it is possible to prevent the printing from dropping off or printing transfer. That is, since it becomes possible to print on the packaging bag 1 in the same manner as a conventional outer packaging bag of frozen food, it is possible to wrap the article to be heated M only with the multilayer film F, thereby increasing the commercial value. I can do it.
  • the adhesive layer BL is a layer containing a heat-adhesive resin, and has a function of connecting the pore forming film F1 and the cover film F2. That is, one surface of the adhesive layer BL is connected to the pore forming film F1, and even when the temperature is equal to or higher than the predetermined temperature described above, the connection portion with the pore forming film F1 is not released. It is strong.
  • the other surface of the adhesive layer BL is connected to the cover film F2 with a predetermined laminated connection strength. For example, the other surface of the adhesive layer BL and the cover film F2 are connected so that the laminated connection strength is about 0.5 to 1.5 N / 15 mm when not heated.
  • the thermal adhesive resin contained in the adhesive layer BL has a biquad softening point of 40 ° C. or higher and lower than 100 ° C.
  • the laminate connection strength and the peel-off portion connection strength between the adhesive layer BL and the cover film F2 can be easily changed from the adhesive layer BL to the cover film F2 at a temperature below room temperature. It can be maintained to the extent that it does not peel off. That is, the laminated connection strength between the adhesive layer BL and the cover film F2 is about 0.5 to 1.5 N / 15 mm, and the peeled portion connection strength between the adhesive layer BL and the cover film F2 is about 1.3 to 4.0 N / 15 mm.
  • the granular member p When the granular member p is less than 20% by weight, a sufficient number of communication holes h cannot be formed, so that the water vapor cannot be discharged sufficiently and the packaging bag 1 may be ruptured. On the other hand, when the granular member p is more than 60% by weight, problems such as breakage of the film and breakage of the film occur when the adhesive layer BL is manufactured.
  • the base material s may be formed of a polyolefin resin having a melting point of 100 ° C. or higher, and the polyolefin resin may contain a low melting point polyolefin resin having a melting point of less than 100 ° C.
  • Inner layer film Total thickness 100 ⁇ m
  • the inner layer film is obtained by laminating the following (a) pore-forming film and (b) an adhesive layer by coextrusion.
  • LDPE long-chain branched low density polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
  • Bag Frames (AREA)
  • Wrappers (AREA)

Abstract

[Problème] Fournir un sac d'emballage qui présente d'excellentes caractéristiques de fabrication de sac, avec lequel il est possible d'effectuer une cuisson par micro-ondes tandis que le sac d'emballage reste fermé, et avec lequel il est possible d'identifier aisément un état de chauffage approprié de l'aliment dans le sac d'emballage. [Solution] La présente invention concerne un sac d'emballage 1 avec lequel il est possible de chauffer un sujet de chauffage M dans un état dans lequel il est contenu dans un espace de confinement 1h, dans lequel : le sac d'emballage 1 est formé d'un film multicouche F pourvu d'un film de couche interne 3, qui comporte un film de formation de pores F1 et une couche adhésive BL contenant une résine thermiquement adhésive, et un film de couche externe 4 d'un film de couverture F2 ayant une extensibilité plus faible et une résistance à la chaleur supérieure à celle du film de couche interne 3 ; lorsqu'une tension est appliquée à une température égale ou supérieure à une température donnée, un grand nombre de trous traversants h pénétrant depuis le côté recto vers le côté verso sont formés dans le film de couche interne 3 ; le sac d'emballage 1 est pourvu de parties de liaison 5, 10 ayant une partie de liaison de surface interne au niveau de laquelle les surfaces internes du film de formation de pores F1 sont liées ; et la résistance de liaison de la partie de pelage est inférieure à la résistance de liaison de la surface interne, et supérieure à la résistance de liaison de stratification au niveau de parties autres que les parties de liaison 5, 10.
PCT/JP2016/070056 2016-07-06 2016-07-06 Sac d'emballage WO2018008117A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016555853A JP6063104B1 (ja) 2016-07-06 2016-07-06 包装袋
PCT/JP2016/070056 WO2018008117A1 (fr) 2016-07-06 2016-07-06 Sac d'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/070056 WO2018008117A1 (fr) 2016-07-06 2016-07-06 Sac d'emballage

Publications (1)

Publication Number Publication Date
WO2018008117A1 true WO2018008117A1 (fr) 2018-01-11

Family

ID=57800035

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/070056 WO2018008117A1 (fr) 2016-07-06 2016-07-06 Sac d'emballage

Country Status (2)

Country Link
JP (1) JP6063104B1 (fr)
WO (1) WO2018008117A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021024573A (ja) * 2019-07-31 2021-02-22 キョーラク株式会社 包装袋
JP7457213B2 (ja) 2022-03-31 2024-03-27 花王株式会社 多孔質フィルム、その製造方法、及びそれを備えた吸収性物品

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019182520A (ja) * 2018-04-16 2019-10-24 凸版印刷株式会社 電子レンジ加熱用パウチ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001301844A (ja) * 2000-04-24 2001-10-31 Dainippon Printing Co Ltd 電子レンジ対応小袋
JP2014227222A (ja) * 2013-05-27 2014-12-08 株式会社メイワパックス 包装袋及び包装体
JP2015058966A (ja) * 2013-09-20 2015-03-30 日生化学株式会社 加熱用包装袋

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001301844A (ja) * 2000-04-24 2001-10-31 Dainippon Printing Co Ltd 電子レンジ対応小袋
JP2014227222A (ja) * 2013-05-27 2014-12-08 株式会社メイワパックス 包装袋及び包装体
JP2015058966A (ja) * 2013-09-20 2015-03-30 日生化学株式会社 加熱用包装袋

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021024573A (ja) * 2019-07-31 2021-02-22 キョーラク株式会社 包装袋
CN114126975A (zh) * 2019-07-31 2022-03-01 京洛株式会社 包装袋
CN114126975B (zh) * 2019-07-31 2024-01-09 京洛株式会社 包装袋
JP7457213B2 (ja) 2022-03-31 2024-03-27 花王株式会社 多孔質フィルム、その製造方法、及びそれを備えた吸収性物品

Also Published As

Publication number Publication date
JP6063104B1 (ja) 2017-01-18
JPWO2018008117A1 (ja) 2018-07-12

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