Title:
PACKAGE BAG AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2012/081102
Kind Code:
A1
Abstract:
A method for producing a package bag (10) of the present invention comprises: a cured portion forming step wherein at least a part of a resin constituting a film (11) is crystallized by heating and cooling the film (11) on at least one side of a position where a rib (14) is to be formed, so that cured portions (15a, 15b) are formed; and a rib forming step for forming the rib (14) by pressing the film (11) with a concavo-convex die. According to the present invention, a discharge port (12) can be more easily maintained in the open state. Further, the increase in thickness and the bulkiness of the package bag (10) can be suppressed, because no additional material is necessary.
Inventors:
MORI Toshihiko (1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
森 敏彦 (〒23 東京都新宿区西新宿一丁目２３番７号 藤森工業株式会社内 Tokyo, 〒1600023, JP)
KUBOTA Tomoko (1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
森 敏彦 (〒23 東京都新宿区西新宿一丁目２３番７号 藤森工業株式会社内 Tokyo, 〒1600023, JP)
KUBOTA Tomoko (1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
Application Number:
JP2010/072649
Publication Date:
June 21, 2012
Filing Date:
December 16, 2010
Export Citation:
Assignee:
FUJIMORI KOGYO CO., LTD. (1-23-7, Nishi-Shinjuku Shinjuku-k, Tokyo 23, 〒1600023, JP)
藤森工業株式会社 (〒23 東京都新宿区西新宿一丁目２３番７号 Tokyo, 〒1600023, JP)
MORI Toshihiko (1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
森 敏彦 (〒23 東京都新宿区西新宿一丁目２３番７号 藤森工業株式会社内 Tokyo, 〒1600023, JP)
藤森工業株式会社 (〒23 東京都新宿区西新宿一丁目２３番７号 Tokyo, 〒1600023, JP)
MORI Toshihiko (1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
森 敏彦 (〒23 東京都新宿区西新宿一丁目２３番７号 藤森工業株式会社内 Tokyo, 〒1600023, JP)
International Classes:
B31B1/74; B65D33/38
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
Claims:
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