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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/034344
Kind Code:
The present invention pertains to a bag body provided with a bag main body (10) configured by an unperforated film (1), and joining parts (4a), (4b), (4c) that join the end sections of the unperforated film together and seal an internal space of the bag main body, wherein at least one (4a) of the joining parts has bonding parts (6) arranged in a stripe form and each formed of a bonding agent layer for bonding the end members of the unperforated film together, and non-bonding parts (8) disposed between adjacent bonding parts and forming ventilation paths that allow communication between the internal space of the bag main body and the outside. The width W of the ventilation paths is 0.2 to 5 mm inclusive; a L/W value, which is the ratio of the length L to the width W of the ventilation paths, is 10 to 200 inclusive; and the ventilation paths can be formed with accurate dimensions and prevented from being closed and unventilated due to condensed moisture.

WATANABE Toru (Ebisu Awaya Building 6F, 18-5 Higashi 3-chome, Shibuya-k, Tokyo 11, 〒1500011, JP)
Application Number:
Publication Date:
February 22, 2018
Filing Date:
August 18, 2017
Export Citation:
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W & CO. (3-18-5, Higashi Shibuya-k, Tokyo 11, 〒1500011, JP)
International Classes:
B65D81/26; B65D33/01
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (NAKAMURA & PARTNERS, Shin-Tokyo Bldg. 3-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 55, 〒1008355, JP)
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