METHOD AND DEVICE FOR MANUFACTURING AN AUTOMATIC CLOSURE VALVE BAG

申请公布号：WO1983002252(A1)

申请号：EP1982000277

申请日期：1982.12.29

申请公布日期：1983.07.07

摘要：<p>Device and method for manufacturing a valve bag with one or a plurality of layers, of paper or sheet, with an automatic closure valve, comprising first the sticking of an inner paper band (1) and a valve sleeve (24) of paper and having the desired size. The valve sleeve (24) is produced in line in an appropriate device (22, 8, 21, 9, 10, 11, 12, 13) arranged directly above a guiding and pressing station (13, 18) and conveyed, in synchronism with a bag manufacturing machine (1, 4, B, 3, 8, A, 2) to the pressing station (13, 18) to be adhered on the inner face of the paper web (1). Finally, the paper band (1) is conveyed and adhered with the outer layer or layers forming a multilayer bag.</p>

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