发明名称 |
Tapered bags prodn. from thermoplastic film - two films are together cross-welded and cut off at acute angles |
摘要 |
Thermoplastic film packs, and tapered bags in particular, are produced by cross-welding and cutting, at an angle and at intervals, two films which move together so that two bags, with their narrow and wider ends adjacent respectively, are formed and cut off. Simple design machine which is easily operated and efficient and suitable for various sizes of bags. |
申请公布号 |
DE2927497(A1) |
申请公布日期 |
1981.01.22 |
申请号 |
DE19792927497 |
申请日期 |
1979.07.07 |
申请人 |
POLLMANN,KARL;POLLMANN,HERBERT |
发明人 |
POLLMANN,KARL;POLLMANN,HERBERT |
分类号 |
B31B19/98;B31B25/00 |
主分类号 |
B31B19/98 |
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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