发明名称 PLASTIC BAG
摘要 A bag made of a plastic film which can be heat-sealed or heat-welded, for containing media in liquid and/or paste form comprises two flat parts which form side walls that are sealed together along their longitudinal edges and along their lower transverse edge and form a withdrawal orifice at their upper end. To facilitate opening of the bag, at least one bead which extends from the inside to the outside is provided in the region of the withdrawal orifice in two facing parts of the side walls. The beads on both side walls coincide and end at the edge of the withdrawal orifice.
申请公布号 WO9008070(A3) 申请公布日期 1990.09.07
申请号 WO1990EP00066 申请日期 1990.01.12
申请人 INDAG GESELLSCHAFT FUER INDUSTRIEBEDARF MBH 发明人 WILD, RAINER
分类号 B29D22/00;B32B27/32;B65D30/08;B65D30/16;B65D33/00;B65D33/36;B65D75/58 主分类号 B29D22/00
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