A roll of handled plastic bags is formed from a continuous collapsed tube. Each bag is bounded by two longitudinally spaced heat seals and is separable from the roll along perforated lines. The bag handles (32) and bag mouth (30) are formed by die cutting the tube. Improved separation of film layers is achieved by perforating a minor bag mouth edge portion centrally located between the opposing major inside smooth edge portions and tearing scrap thermoplastic film from the die-cut bag mouth to provide a rough edge having a series of torn film edge discontinuities which facilitate separation of blocked adjacent film layers during opening of the bag mouth.
申请公布号
WO9638290(A1)
申请公布日期
1996.12.05
申请号
WO1996US08000
申请日期
1996.05.30
申请人
TENNECO PLASTICS COMPANY
发明人
BELIAS, WILLIAM, P.;BULLARD, EDWARD, M.;VISCONTINI, PAUL, E.