Title:
FROZEN-FOOD-PRESERVING BAG BODY, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/034510
Kind Code:
A1
Abstract:
Provided is a bag body having a weakened section that reliably peels away during heating by a microwave oven to form a gas venting passage, but does not peel away during transport or storage, while having a simple configuration. The present invention provides a frozen-food-preserving bag body 10 for preserving frozen food that is already cooked, wherein: the bag body is formed from films 12; the bag body comprises, at least at one end section thereof, a joining part 14 at which the films are joined so as to overlap one another and which seals the interior of the bag body; a weakened section 20 that has lower joining strength than other portions of the joining part is provided to one section of the joining part so as to cross the joining part in a direction from the interior of the bag body toward the exterior thereof; in the weakened section, the overlapped films are connected to one another by only a plurality of dot-form joining parts 24; and the plurality of dot-form joining parts are disposed across the entire width of the weakened section such that the peel strength of a portion of the weakened section that is positioned on the interior side of the bag body is lower than the peel strength of other portions of the weakened section.
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Inventors:
WATANABE TORU (JP)
Application Number:
PCT/JP2023/028399
Publication Date:
February 15, 2024
Filing Date:
August 03, 2023
Export Citation:
Assignee:
W & CO (JP)
International Classes:
B65D81/34
Domestic Patent References:
| WO2014196071A1 | 2014-12-11 |
Foreign References:
| JP2001063775A | 2001-03-13 | |||
| JPS5623466A | 1981-03-05 | |||
| JPH1059432A | 1998-03-03 |
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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