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    • 5. 发明申请
    • Double wall bags
    • 双层包袋
    • US20070127855A1
    • 2007-06-07
    • US10561932
    • 2004-06-28
    • Ian SmithJohn GriffithsPatrick ConnellyPaul Brassington
    • Ian SmithJohn GriffithsPatrick ConnellyPaul Brassington
    • B65D30/08B65D33/16
    • B65D33/004B65D31/04B65D33/22
    • The invention relates to plastic bags and sack for use especially in the food and pharmaceutical industries. The bag (2) comprises inner and outer bag sections (4, 14) which are joined at least at an upper portion in a manner which allows them to be separated when required, such as by heat sealing. The outer bag section (14) may be provided with a mouth (10) through which the inner bag section can be withdrawn when required. Alternatively, the outer bag section may be peeled away from the inner bag section. The inner bag section is heat sealed after filling with contents to retain the contents in the inner portion. The heat sealing step also serves to secure the bag sections together as above. The inner bag section is preferably provided with a closeable mouth (132) separate from the end by which it is filled, through which the contents may be dispensed.
    • 本发明涉及特别用于食品和制药行业的塑料袋和袋。 袋子(2)包括内部和外部袋部分(4,14),它们至少在上部部分以允许它们在需要时被分离的方式,例如通过热封。 外袋部分(14)可以设置有口(10),当需要时可以将内袋部分抽出。 或者,外袋部分可以从内袋部分剥离。 内袋部分在填充内容物之后被热密封,以将内容物保持在内部。 热封步骤还用于将袋部分固定在一起如上。 内袋部优选地设置有与其被填充的端部分离的可闭合的口(132),通过该口可以分配内容物。