发明名称 Dual scored easy open film
摘要 A film having a line of weakness and a method for making a film having a line of weakness are provided. The film has a barrier layer of extruded ethylene vinyl alcohol laminated on one side to a first layer of oriented polypropylene having a score line therein. The barrier layer is laminated on its second side to a second layer of polyethylene teraphthalate having a score line therein. The score line in the oriented polypropylene layer and the score line in the polyethylene teraphthalate layer lie in a plane substantially perpendicular to a plane of the film forming the line of weakness.
申请公布号 US7531228(B2) 申请公布日期 2009.05.12
申请号 US20050286958 申请日期 2005.11.23
申请人 ALCAN PACKAGING FLEXIBLE FRANCE 发明人 PERRE CHAD M.;EHRENBERGER ANNE L.
分类号 B32B3/02 主分类号 B32B3/02
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