发明名称 OPENING ARRANGEMENT FOR PACKING CONTAINERS
摘要 Non-returnable packages, for liquid contents, e.g. milk, are made frequently from a flexible packing laminate, and are provided with an opening arrangement in the form of a tear-off strip which covers a pouring opening in the packing container wall. So as to avoid spatter and spillage at the actual moment of opening an opening arrangement for packing containers is realized comprising a pouring opening which has a projection of small area directed against the direction of tearing of the tearing strip . This part of the pouring opening formed as a projection thus will be opened first, and air will flow into the packing container, and the liquid level will drop so that the continued opening can be performed without any risk of spillage. By varying the sealing strength between the tearing strip and the packing laminate an automatic delay of the removal of the tearing strip after the opening of the projecting part can be acheived. which further improves the functioning of the opening arrangement.
申请公布号 CA1282719(C) 申请公布日期 1991.04.09
申请号 CA19860511302 申请日期 1986.06.11
申请人 TETRA PAK INTERNATIONAL AB 发明人 JACOBSSON, KENTH;LAGERSTEDT, JAN
分类号 B65D5/74;B65D5/06;B65D5/70 主分类号 B65D5/74
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