Title:
液中シール用ラミネートフィルム
Document Type and Number:
Japanese Patent JP7181648
Kind Code:
B2
Abstract:
To provide a laminate film which can be sealed in liquid regardless of the kind of an object to be packaged which is interposed in a heat-sealing part, such as an object containing a contaminant such as a solid matter, a sealing material or a highly viscous material such as an adhesive.SOLUTION: A laminate film used in sealing in liquid for heat-sealing a squeezing out position while squeezing out a liquid matter remaining between two overlapped laminate films by a pair of heat-sealing rolls and joining the laminate films includes at least a base film layer and a sealant layer. The sealant layer is composed of a highly fluid thermoplastic resin film layer as an outermost layer and a lowly fluid thermoplastic resin film layer laminated inside positioned on the side of the base film layer of the highly fluid thermoplastic resin film layer, the lowly fluid thermoplastic resin film layer has a melting point higher than that of the highly fluid thermoplastic resin film layer, and a melting point difference is 20°C or more.SELECTED DRAWING: Figure 3
Inventors:
Katsunori Nise
Application Number:
JP2021118591A
Publication Date:
December 01, 2022
Filing Date:
July 19, 2021
Export Citation:
Assignee:
Yushin Co., Ltd.
International Classes:
B65D65/40; B32B7/027; B32B15/08; B32B15/20; B32B27/00; B32B27/32; C09J7/29; C09J7/35; C09J7/50
Domestic Patent References:
| JP3101627U | ||||
| JP2014133410A | ||||
| JP8026332A | ||||
| JP2004223728A | ||||
| JP2013154609A |
Attorney, Agent or Firm:
Patent Attorney Ginza Maronnier Patent Office