Title:
ROLL FILM AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/1989/000967
Kind Code:
A1
Abstract:
A film (1) wound around a core (2) and having zipper teeth (3), (4) of a resin constituting interlocking means fused continuously to the film along both edge portions thereof, the film (1) being wound diagonally around the core (2) to form a roll film. This roll film can be set in an automatic bag packing machine without any troublesome operations. During a rewinding operation, the film turns smoothly, so that the film can be payed out at a constant speed. This enables zipper-carrying bags to be formed efficiently.
Inventors:
TOSHIMA ISAO (JP)
Application Number:
PCT/JP1988/000751
Publication Date:
February 09, 1989
Filing Date:
July 27, 1988
Export Citation:
Assignee:
ASAHI CHEMICAL POLYFLEX (JP)
International Classes:
B31B19/10; B31B19/90; B31B19/94; B31B23/00; B31B27/00; B65H18/28; B65H23/02; (IPC1-7): B65H18/00; B65H18/28; B31B1/90
Foreign References:
| JPS411424B1 | ||||
| JP4824426Y | ||||
| JPH05836845A | ||||
| JPS524470Y2 | 1977-01-29 | |||
| JPH04751700B |
Other References:
See also references of EP 0328672A4
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