Title:
良好な剥離性が得られるポリプロピレン系延伸フィルム
Document Type and Number:
Japanese Patent JP7018794
Kind Code:
B2
Abstract:
To provide a new stretched polypropylene film having high detachability or openness in detaching a heat seal part of each of seal layers of the same film.SOLUTION: A stretched polypropylene film having a substrate layer and a seal layer and containing an antifogging agent is characterized by keeping a heat seal strength of 60% or more relative to a maximum heat seal strength when seals are heat sealed in a width of 10 mm at a temperature of 140°C and sealed portions are detached at a rate of 200 mm/min in a TD direction at room temperature. A packaging bag is produced using the stretched polypropylene film.SELECTED DRAWING: Figure 2
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Inventors:
Yoshimi Iwaya
Yui Tanaka
Tokuo Uehara
Yui Tanaka
Tokuo Uehara
Application Number:
JP2018056039A
Publication Date:
February 14, 2022
Filing Date:
March 23, 2018
Export Citation:
Assignee:
GUNZE LIMITED
International Classes:
B32B27/32; B32B27/00; B65D65/40
Domestic Patent References:
| JP2005305998A |
Foreign References:
| WO2017170330A1 |
Attorney, Agent or Firm:
Naoto Shimizu