发明名称 |
METHOD FOR WELDING LAMINATE-LIKE PACKAGING MATERIALS |
摘要 |
The invention relates to a method for welding laminate-like packaging materials (4a, 4b, 5) which have a plastic material on the surfaces to be joined by welding, without contacting said surfaces with welding tools. To be able to interrupt the welding abruptly and resume it thereafter without spoilage, whereby the thermal energy required to provide the welding temperature is preferably generated by economically feasible means, the invention provides for a laser beam to be used as welding energy. The laser beam preferably has a constant output power and the surfaces to be welded are moved in the form of packaging material webs (5) in relation to the fixed point of incidence where the laser beam strikes the at least one material web. |
申请公布号 |
EP1069984(A1) |
申请公布日期 |
2001.01.24 |
申请号 |
EP19990913199 |
申请日期 |
1999.02.27 |
申请人 |
TETRA LAVAL HOLDINGS & FINANCE S.A. |
发明人 |
MARTIN, PETER, JOSEF;PUETZ, HEIDRUN;TREUSCH, HANS, GEORG |
分类号 |
B29C53/50;B29C65/00;B29C65/16;B31B1/66 |
主分类号 |
B29C53/50 |
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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