发明名称 EASY OPEN BAG HAVING RUPTURE STRIP
摘要 <p>EASY OPEN BAG HAVING RUPTURE STRIP An easy open package is provided that comprises a side-sealed bag of multiply thermoplastic film having inside and outside plies characterized in that inside-to-inside ply heat seal strength is greater than inside-to-outside ply heat seal strength; and a rupture strip of film, being the same material as the film of said bag, interposed between the surfaces of the mouth of said bag, said bag mouth being heat sealed through said strip forming one inside-to-inside type heat seal and at least one inside-to-outside type heat seal. Preferably, said easy open package further includes a reclosure element, and the inside ply of the film of said package is irradiatively cross-linked. An associated method for making said package is also provided.</p>
申请公布号 CA1222485(A) 申请公布日期 1987.06.02
申请号 CA19830433778 申请日期 1983.08.03
申请人 GRACE (W.R.) & CO. 发明人 HOWE, MILTON A., JR., (DECEASED)
分类号 A61K9/22;A61K9/30;B31B;B31B49/04;B32B;B65D;B65D33/00;B65D33/16;B65D33/30;B65D77/10;B65D77/24;B65D77/38;(IPC1-7):B65D33/16 主分类号 A61K9/22
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