| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-standing bag capable of pouring a liquid content without closing a spout part when the liquid content is re-filled into another container or the like, pouring easily it by one hand, and being self-standable. SOLUTION: The self-standing bag is prepared by arranging two sheets of body part forming sheets each consisting of a paper substrate laminated sheet which keeps at least a paper substrate and the innermost layer overlaid with a heat-adhesive resin layer so as to oppose the heat-adhesive resin layer faces, inserting a bottom part forming sheet consisting of a laminated sheet equipped with at least a heat-adhesive resin layer as the innermost layer into the lower end part between the body part forming sheets so as to make the innermost layer face outside and make it into ridge-folding at the center, and heat-sticking the peripheral edges. The spout part whose peripheral edges are heat-stuck and tip is cut to pour the content is provided at the upper part of the two sheets of the body part forming sheet. COPYRIGHT: (C)2009,JPO&INPIT
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