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2. 发明授权

US5930877A Peel seal zipper tape 失效
标题翻译：剥皮密封胶带
公开(公告)号：US5930877A
公开(公告)日：1999-08-03
申请号：US129050
申请日：1998-08-04
申请人： Charles C. Thorpe , Gregory J. Pagnier , Lawrence Share
发明人： Charles C. Thorpe , Gregory J. Pagnier , Lawrence Share
IPC分类号： B65D33/25 , B65D33/34 , B65D33/16
CPC分类号： B65D33/2533 , Y10S24/50 , Y10T24/33 , Y10T24/45157 , Y10T24/45168
摘要： A peel seal zipper tape for reclosable plastic bags or packages includes a first and a second mutually interlocking zipper profile disposed on a top surface of a laminated film strip. The top surface is formed by a layer of a sealant material. The laminated film strip also has a middle layer, or core, of a material stiffer than the first and second mutually interlocking zipper profiles, and may also have a bottom layer of a sealant material. In use, the laminated film strip is folded over, and the zipper profiles are interlocked with one another. In doing so, portions of the top surface of the laminated film strip face inwardly, so that the folded film strip may be closed with a heat seal. The outside of the folded peel seal zipper tape, that is, the bottom layer of sealant material is bonded to plastic sheet material from which reclosable plastic bags or packages are made. In the production of the bags or packages, the mutually facing portions of the laminated film strip are sealed together. The resulting seal gives a visual indication of having been broken when initially opened.
摘要翻译：用于可重新封闭的塑料袋或包装的剥离密封卡扣带包括设置在层压膜条的顶表面上的第一和第二相互锁定的拉链轮廓。顶表面由密封剂材料层形成。层压膜条还具有比第一和第二相互锁定的拉链轮廓更硬的材料的中间层或芯，并且还可以具有密封剂材料的底层。在使用中，层压膜条被折叠，并且拉链轮廓彼此互锁。在这样做时，层压薄膜带的顶表面的一部分面向内，使得折叠的薄膜条可以用热封封闭。折叠的剥离密封卡扣带的外侧，即密封材料的底层粘合到制造可再封闭的塑料袋或包装的塑料片材料上。在袋或包装的制造中，将层叠膜片的相互对置的部分密封在一起。最终的密封给出了最初打开时已被破坏的视觉指示。

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