Title:
熱収縮性ポリエステル系フィルムおよび包装体
Document Type and Number:
Japanese Patent JP7439848
Kind Code:
B2
Abstract:
The invention provides a heat-shrinkable polyester film, which has a main shrinkage direction in a longer direction, exhibits a higher shrinkage ratio in the main shrinkage direction, has small difference in shrinkage ratio at a high temperature and a low temperature so as not likely to generate wrinkles or the like when being used as a label, and exhibits small over-time decrease in shrinkage ratio at a low temperature. The heat-shrinkable polyester film has, as a main component, ethyleneterephthalate, and an amount of a diethyleneglycol (DEG) component is 10-25 mol % with respect to 100 mol % of a polyhydric alcohol component in all of polyester resin that composes the film.
Inventors:
Masafumi Inoue
Masayuki Haruta
Masayuki Haruta
Application Number:
JP2022027823A
Publication Date:
February 28, 2024
Filing Date:
February 25, 2022
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
C08J5/18; B29C48/08; B29C55/06; B29C61/02; B29C61/06; B65D65/02; B65D77/20; C08G63/672
Domestic Patent References:
| JP63309424A | ||||
| JP4278348A | ||||
| JP7053737A | ||||
| JP7138388A | ||||
| JP3068634A | ||||
| JP3045631A |
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