Title:
PACKAGING MATERIAL
Document Type and Number:
Japanese Patent JP3334486
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide packaging material in which adsorption and sorption of an odor component and an available component are little and hydrolysis of polyester-based heat bonding resin, elution of an oligomer, reduction of physical properties such as reduction of molecular weight and an impediment in the sense of taste are not caused even when heat treatment such as hot filling, boiling sterilization and retorting which reach at least glass-transition temperature of polyester-based heat bonding resin is performed.
SOLUTION: The packaging material is produced by providing a polyester resin film layer having ≤4.0mgKOH/g acid value, more preferably ≤3.8mgKOH/ g as a sealant layer on the side in which a substrate film consisting of a film or a sheet of at least one layer touches the contents.
Inventors:
Shigeno Ikuno
Application Number:
JP11363796A
Publication Date:
October 15, 2002
Filing Date:
May 08, 1996
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
B32B27/36; B65D65/40; (IPC1-7): B32B27/36; B65D65/40
Domestic Patent References:
| JP4325245A | ||||
| JP396345A | ||||
| JP7304885A | ||||
| JP6286091A | ||||
| JP5156883A | ||||
| JP5148513B1 |