Title:
PACKAGING BAG WITH LIQUID-SPOUTING NOZZLE
Document Type and Number:
WIPO Patent Application WO/2009/139299
Kind Code:
A1
Abstract:
A packaging bag having a liquid-spouting nozzle is provided in which the liquid-spouting nozzle is prevented from permanently deforming in the directions in which the contents-spouting passage expands. The liquid-spouting nozzle prevents outside air from coming into the packaging-bag main body, and can sufficiently perform a self-sealing/check function when contents spouting is stopped. This packaging bag is obtained in the following manner. A laminated film comprising a base film layer and, laminated to this base film layer respectively on both sides, a high-melting sealant layer and a low-melting sealant layer is fusion-bonded to itself in an area along the periphery excluding a base end side thereof so that the high-melting sealant layer faces itself, whereby a liquid-spouting nozzle is constituted. This liquid-spouting nozzle is fusion-bonded at the base end part thereof to a flexible packaging-bag main body so that the nozzle protrudes from a side part of the main body, by fusing the low-melting sealant layer serving as the outer surface of the nozzle to a sealant layer serving as the inner surface of the flexible packaging-bag main body. On the other hand, at the base end part of the liquid-spouting nozzle, the high-melting sealant layer is temporarily fusion-bonded to itself to form a temporary fusion-bonded part.
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Inventors:
FUTASE, Katsunori (2-13-15, Higashiuradate, Sanjo-sh, Niigata 81, 〒9550081, JP)
Application Number:
JP2009/058424
Publication Date:
November 19, 2009
Filing Date:
April 22, 2009
Export Citation:
Assignee:
YUSHIN CO., LTD. (2-13-15, Higashiuradate Sanjo-sh, Niigata 81, 〒9550081, JP)
株式会社 悠心 (〒81 新潟県三条市東裏館２－１３－１５ Niigata, 〒9550081, JP)
株式会社 悠心 (〒81 新潟県三条市東裏館２－１３－１５ Niigata, 〒9550081, JP)
International Classes:
B65D33/38; B65D30/02
Attorney, Agent or Firm:
OGAWA, Junzo et al. (Kobigikan Ginza Bldg, 8-9,Ginza 2-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
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