发明名称 |
PROCESS AND DEVICE FOR PRODUCING BAGS, THE WALLS OF WHICH CONTAIN STRETCHED POLYOLEFIN MATERIAL |
摘要 |
What are described and claimed are a process and a device for producing bags (2, 2'), the walls of which contain stretched polyolefin material, - in which at least one thermally induced joining process is effected by heating at least some of the material (2, 2', 3, 3') to be joined with a stream of hot air (18), - which (18) is produced by firstly guiding air past one or more heating devices (16, 21) and then conducting it onto the material (2, 2', 3, 3') to be joined. It is considered novel and inventive that the stream of air (18) is guided past at least one heating device (16, 21) in pulsating fashion. |
申请公布号 |
WO2012119863(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
WO2012EP53121 |
申请日期 |
2012.02.24 |
申请人 |
WINDMOELLER & HOELSCHER KG;KOEHN, UWE;HAEGER, CHRISTIAN;WEHMEYER, JOERG;HAWIGHORST, THOMAS |
发明人 |
KOEHN, UWE;HAEGER, CHRISTIAN;WEHMEYER, JOERG;HAWIGHORST, THOMAS |
分类号 |
B29C65/10;B29C65/78;B31B19/64 |
主分类号 |
B29C65/10 |
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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