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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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