发明名称 |
BEUTEL AUS FLEXIBLEM VERPACKUNGSMATERIAL UND VERFAHREN ZU DESSEN HERSTELLUNG |
摘要 |
PCT No. PCT/DK94/00181 Sec. 371 Date Feb. 13, 1996 Sec. 102(e) Date Feb. 13, 1996 PCT Filed May 5, 1994 PCT Pub. No. WO94/25356 PCT Pub. Date Nov. 10, 1994A bag made of a flexible packing material comprising a sheet of material having an inner face and an outer face and folded for the formation of a tube with an overlapping portion. In the overlapping portion, the packing material is sealed inner face to outer face by means of a lapseal. Along two side edge portions, the tube is welded inner face to outer face of the overlapping portion for obtaining a closed bag enclosing the packed product. The packing material provides a peel seal, when welded inner face to outer face and a strong seal when welded inner face to inner face. Seen relative to the bag, the packing material comprises an inner layer comprising polyethylene, and outer layer comprising a copolymer of polyethylene and polypropylene and a subjacent intermediate layer comprising polypropylene. |
申请公布号 |
DE69401208(T2) |
申请公布日期 |
1997.05.15 |
申请号 |
DE1994601208T |
申请日期 |
1994.05.05 |
申请人 |
DANISCO A/S, KOPENHAGEN/KOEBENHAVN, DK |
发明人 |
SCHULZ, WERNER, DK-8700 HORSENS, DK |
分类号 |
B65D33/24;A24F15/00;A24F23/02;B32B27/32;B65B9/08;B65B9/20;B65D30/02;B65D30/08;B65D75/40;(IPC1-7):B65D30/02;B65D30/10;B65B3/02 |
主分类号 |
B65D33/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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