Apparatus for making tubular film with transverse closure strips

Details Apparatus for making tubular film with transverse closure strips Apparatus for making tubular film with transverse closure strips

1987-07-17

1989-02-28

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

15624415, 264151, 2642092, 2642093, 4253021, 425325, B29C 4724, B29C 5320

Patent

active

048080993

ABSTRACT:
An apparatus for making extruded film tube having joined to its inside surface a closure strip extending generally transversely, preferably helically, relative to the axis of the tube and the tube and closure strip being adapted to be converted into a ribbon sheet form with the closure strip extending as individual closure strip sections across the ribbon sheet form at longitudinally spaced intervals, and adapted for making bags.

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