Starting tail for film rolls and method and apparatus for...

Details Starting tail for film rolls and method and apparatus for... Starting tail for film rolls and method and apparatus for...

B - Operations, Transporting

65

H

18/1054

B65H 37/00 (2006.01) B26D 1/04 (2006.01) B29C 59/02 (2006.01) B29C 61/02 (2006.01) B65H 19/26 (2006.01) B65H 19/29 (2006.01) B65H 35/04 (2006.01)

Patent

CA 1116826

ABSTRACT A method of affecting the tail end of a roll of plastic film to render it readily identifiable and easy to grasp and start without tearing the film web into strips. The tail end of the film is puckered, shrunk, or otherwise embossed on-line as it is separated and about to be wound up on a roll core. The method is accomplished by securing the tail end between a heated surface on the upstream side of a knife on a cut-off roll and a lifting mechanism to provide a wide puckered, shrunken, or embossed portion across the tail end of the film at about the time it is severed from the film stock. The method produces a novel puckered tail, particu- larly for highly oriented films where tension is relieved while the tail end is still heated. 18,476-F 18,476-F

314307

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