发明名称 RECLOSABLE BAG AND METHOD OF MAKING
摘要 A process for forming two chains (24) of interconnected plastic bags in which a pair of plastic webs (31,32) of different widths are superposed in such a way that the wider web or layer (32) extends beyond the edges of the narrower web or layer (31); flaps (22) are then formed at intervals along both sides of the wider layer; the flaps are folded inward over the narrower layer and headers (13) are formed along the folded over edges by sealing along lines (43) inward of the edges; adhesive (23) is applied between the flaps (22) and narrower web or layer (31); the layers are then sealed at intervals together along transverse spaced lines (49) between adjacent flaps and transverse lines of weakness (25) are formed to weaken the transverse seals (49); the webs (31,32) are then divided longitudinalyy and end connections (29) are formed in each of the two chains. <IMAGE>
申请公布号 ZA9102110(B) 申请公布日期 1992.03.25
申请号 ZA19910002110 申请日期 1991.03.21
申请人 AUTOMATED PACKAGING SYSTEMS, INC. 发明人 HERSHEY LERNER;WILLIAM H. MAYHEW
分类号 B31B27/60;B31B27/00;B65D33/20 主分类号 B31B27/60
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