发明名称 BAGS AND THE MANUFACTURE OF BAGS
摘要 A strip of tamper proof, reclosable bags 44 comprises two plies 19.1, 19.2 of plastics sheet material secured to one another by welding along transverse zones by folds 20, 22 along their edges. Adjacent bags are connected along lines of perforations. The plies are provided with interengageable male/female rib formations 12, 14 adjacent the folds 20, 22, and a line of weakening is formed by perforations 24, 26 in the plies between the fold and the male/female rib formations to form an edge portion which can be removed by tearing along the line of weakening. The plies are slit at 38 to form openings 46 through which the bags can be filled and thereafter sealed. Prior to opening the bag, the edge portion is torn off. The bag can then be opened to provide access to the contents by disengaging the rib formations 12, 14, and reclosed by re- engaging the rib formations. The bags are produced in strip form and remain in strip form until required for use. <IMAGE>
申请公布号 GB2109771(B) 申请公布日期 1986.04.03
申请号 GB19820032635 申请日期 1982.11.16
申请人 NIGEL ERVINE * CLAXTON 发明人 NIGEL ERVINE * CLAXTON
分类号 A44B19/16;B31B19/90;B65D33/00;B65D33/25;(IPC1-7):B65D33/24;B31B41/14;B65D33/34 主分类号 A44B19/16
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