Title:
積層フィルム、および、包装袋
Document Type and Number:
Japanese Patent JP7443726
Kind Code:
B2
Abstract:
To provide a laminate film which can improve drop-bag resistance after sterilization treatment, and a packaging bag.SOLUTION: The laminate film has a gas barrier film layer 11, a thermoplastic resin layer 12, and an adhesive layer 13 positioned between the gas barrier film layer 11 and the thermoplastic resin layer 12. A main component of the adhesive layer 13 is maleic anhydride graft polymerized polypropylene, the thermoplastic resin layer 12 contains a polypropylene-based resin and an incompatible component that is incompatible with the polypropylene-based resin, a content of the incompatible component is 1 mass% or more and 40 mass% or less with respect to the total amount of the thermoplastic resin layer 12, and in a nonthermal weld part of a packaging bag subjected to sterilization treatment at a temperature of 80°C or higher and 130°C or lower, energy in maximum impact according to JIS K 7211-2:2006 is 0.45 J or more, and a form of destroy according to JIS K 7211-1:2006 is penetration.SELECTED DRAWING: Figure 1
Inventors:
Masae Sugano
Sachiko Sugaya
Sachiko Sugaya
Application Number:
JP2019207955A
Publication Date:
March 06, 2024
Filing Date:
November 18, 2019
Export Citation:
Assignee:
TOPPAN Holdings Co., Ltd.
International Classes:
B32B27/32; B32B7/12; B32B9/00; B65D65/40; C09J7/30; C09J151/00
Domestic Patent References:
| JP62028355A | ||||
| JP2018126971A | ||||
| JP2019142522A | ||||
| JP9164639A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda