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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING TEA BAG
Document Type and Number:
WIPO Patent Application WO/2019/026414
Kind Code:
A1
Abstract:
The purpose of the present invention is to achieve both cutting and heat-sealing by means of a laser and provide a method for manufacturing a tea bag (30) having high manufacturing efficiency or a tea bag (30) that controls against outflow of contents thereof. The method for manufacturing the tea bag (30) involves: a temporary affixing step wherein two filter sheets (10a, 10b) are stacked and temporarily affixed so as to define a prescribed outer shape; and a shaping step wherein a laser is used to cut and heat-seal the area at most 2mm outside the temporary affixing position (20) of the two filter sheets (10a, 10b).

Inventors:
SANO, Tomonori (3-17, Shintomicho, Aoi-ku, Shizuoka-sh, Shizuoka 61, 〒4200061, JP)
Application Number:
JP2018/021601
Publication Date:
February 07, 2019
Filing Date:
June 05, 2018
Export Citation:
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Assignee:
JAPAN PAPER INDUSTRY CO., LTD. (3-17, Shintomicho Aoi-ku, Shizuoka-sh, Shizuoka 61, 〒4200061, JP)
International Classes:
B65B29/02; B31B70/20; B31B70/64; B65D85/808; A23F3/16
Foreign References:
JP2013133108A2013-07-08
JP2000072115A2000-03-07
JP3116503U2005-12-08
JP2017019513A2017-01-26
JP2005219767A2005-08-18
JPH08143011A1996-06-04
Attorney, Agent or Firm:
TSUJITA, Tomoko (8F Queen's Tower A, 2-3-1, Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 08, 〒2206008, JP)
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