发明名称 |
BAG MOUTH CLOSURE AND METHOD AND APPARATUS FOR MAKING THE SAME |
摘要 |
Apparatus for making a plastic film bag having bag mouth lips projecting beyond a heat-seal band closing the bag mouth and providing a stiffening patch bonded to the interior or exterior of a bag mouth lip between the heat-seal band and the bag mouth end for reclosing the bag mouth after the heat-seal band has been opened. For reclosing the bag mouth, the apparatus applies stiffening patches to a web of sheet material for making bags at the time that the bags are formed and filled by clipping from a strip of patch-making material patch pieces having pressure-sensitive adhesive on one side. The apparatus transfers such patch pieces from a rotary shear onto the bag-making material by an orbiting transfer member having a suction pickup to pick up a patch piece and blowing means for subsequently detaching the patch piece from the transfer member and depositing it onto the web of bag-making material. |
申请公布号 |
GB2130173(B) |
申请公布日期 |
1987.05.28 |
申请号 |
GB19830028785 |
申请日期 |
1983.10.27 |
申请人 |
* FORMOST PACKAGING MACHINES INC |
发明人 |
VINCENT CHARLES * PACE |
分类号 |
B31B1/72;B31B1/90;B65D33/30 |
主分类号 |
B31B1/72 |
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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