公开(公告)号：US06312742B1

公开(公告)日：2001-11-06

申请号：US09367389

申请日：1999-08-12

申请人： Alexander Charles Wood ,  Anthony Bourne ,  Uwe Kohn

发明人： Alexander Charles Wood ,  Anthony Bourne ,  Uwe Kohn

IPC分类号： B65D8500

CPC分类号： B65D77/12 ,  B65B7/06 ,  B65D31/02 ,  B65D75/5805 ,  B65D77/04

摘要： Packaging such as a blockbase sack (201) suitable for packing of particulate material has an inner bag having two layers of polyethylene, surrounded by an outer bag (201) having three layers of polyethylene. Each bag has a closed bottom and has an open top (208) prior to filling. After filling of the inner bag, the inner bag is closed by a first heat seal along zone (205) in a heat-sealing operation, which can be performed through the outer bag (201) in such a way that the outer bag (201) is not heat sealed to the inner bag at that point. The outer bag (201) is closed by a second seal (207) located between the first seal (205) and the top of the bag (208). A frangible zone (206) is located between the first (205) and second (207) heat seals to enable the outer bag (201) to be removed from the sealed inner bag by cutting or tearing along the frangible zone (206).

摘要翻译： 诸如适用于包装颗粒材料的块状基料袋（201）的包装具有由具有三层聚乙烯的外袋（201）包围的具有两层聚乙烯的内袋。 每个袋子具有封闭的底部并且在填充之前具有敞开的顶部（208）。 在内袋填充之后，通过热封操作中的沿着区域（205）的第一热密封封闭内袋，其可以通过外袋（201）以使得外袋（201） ）在那一点上没有热封在内袋上。 外袋（201）由位于第一密封件（205）和袋（208）的顶部之间的第二密封件（207）封闭。 易碎区（206）位于第一（205）和第二（207）热封之间，以使外袋（201）能够沿着易碎区域（206）切割或撕裂而从密封的内袋中移出。