Title:
FOOD PACKAGING BAG FOR MICROWAVE OVEN
Document Type and Number:
Japanese Patent JP2023113055
Kind Code:
A
Abstract:
To prevent a bag body from bursting when a food inside is heated in a microwave oven.SOLUTION: In a food packaging bag for microwave oven, by bending a lamination film of two or more layers having at least a heat-resistant base layer P2 and a sealant layer P1 into a cylindrical shape with the center of a backlining part of a bag body as a butt sealed part 1, there are provided a heat seal part between the films facing each other at the butt sealed part and the heat seal part between the films facing each other at both open ends 4, 4 of the cylinder, and the heat seal part is sealed after storing a food inside. A foaming ink layer 5 containing thermal expansion microcapsules foamed by heat during heat sealing so as to traverse from an inside to an outside of the packaging bag in a specific region of the heat seal part is provided on a base layer side of the sealant layer.SELECTED DRAWING: Figure 1
Inventors:
MIYAZAKI TAKAYUKI
MATSUZAWA KAZUAKI
MATSUZAWA KAZUAKI
Application Number:
JP2022015175A
Publication Date:
August 15, 2023
Filing Date:
February 02, 2022
Export Citation:
Assignee:
KANAOKA HOLDINGS CO LTD
International Classes:
B65D81/34
Attorney, Agent or Firm:
Yoshimasa Jimbo
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