发明名称 Process for producing carrier bags with a welded base seam
摘要 The invention relates to carrier bags and a process for producing carrier bags from thermoplastic film, with a welded base seam and an, in particular welded, longitudinal seam arranged along one bag side, in which a flat film is folded to form a half-tube and, if appropriate, side gussets are formed so as to run along both sides and, at the open side, the longitudinal seams, lying one above the other, of the half-tube are closed by a longitudinal seam (16), the handle holes are punched and the base seams are produced by transverse welding or severing and welding, a flap edge (12) being folded over along one lateral edge of the flat film (1a, 1b) and being folded in in a W-shaped manner. <IMAGE>
申请公布号 DE3721303(A1) 申请公布日期 1989.01.05
申请号 DE19873721303 申请日期 1987.06.27
申请人 STIEGLER GMBH MASCHINENFABRIK 发明人 VERZICHT DES ERFINDERS AUF NENNUNG
分类号 B31B19/60;B31B19/86;B31B23/00;B65D30/20 主分类号 B31B19/60
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