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1. 发明授权

US3696580A Shrink film packaging method 失效
标题翻译：收缩膜包装方法
公开(公告)号：US3696580A
公开(公告)日：1972-10-10
申请号：US3696580D
申请日：1971-05-17
申请人： JOSEPH M SALTZER SR
发明人： SALTZER JOSEPH M SR
IPC分类号： B65B53/02 , B65D71/00 , B65D71/10 , B65D75/38 , B65D77/00 , B65D81/03 , B65B43/02
CPC分类号： B65D81/03 , B65B53/02 , B65D71/10 , B65D75/38 , B65D77/003 , B65D2571/00018
摘要： The invention relates to a shrink film packaging method by which articles intended for shipment by common carrier or to be sent through the mail may be wrapped so as to be protected from the usual and normal effects of handling. Articles to be wrapped are loaded onto a cardboard or plastic tray which is placed between the folds of two layers of material. The inner layer of material surrounding the tray and articles thereon is a special cushioning material which comprises closely spaced air bubbles formed by two sheets of polyethylene with air pockets formed therebetween. The outer layer of material is a shrink film and a sealer is utilized to form sealed edges around the tray and articles to form a package. The excess wrapping material is trimmed simultaneously as it is being sealed and the package is directed to a heat tunnel where the heat causes shrinkage of the outer shrink film which in turn causes the air in at least some of the bubbles of the inner material to be compressed to a pressure greater than atmospheric pressure.
摘要翻译：本发明涉及一种收缩膜包装方法，通过该收缩膜包装方法可以包装用于由普通承运人运送或通过邮寄发送的物品，以便保护其免受正常和正常处理的影响。待包装的物品被装载在放置在两层材料的褶皱之间的纸板或塑料托盘上。围绕托盘和物品的材料的内层是特殊的缓冲材料，其包括由两片聚乙烯形成的紧密间隔的气泡，其间形成有气泡。外层的材料是收缩膜，并且密封剂用于围绕托盘和制品形成密封边缘以形成包装。多余的包装材料在被密封的同时被修剪，并且包装被引导到热通道，其中热量导致外部收缩膜的收缩，这又导致内部材料的至少一些气泡中的空气为压缩至大于大气压的压力。

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