Method of forming starting tails for film rolls

Details Method of forming starting tails for film rolls Method of forming starting tails for film rolls

1977-11-07

1979-09-25

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Dividing work to form plural articles

206389, 242 56R, 264163, 264284, 425304, B29C 1714, B29C 1700, B65H 1926, B65H 3700

Patent

active

041691229

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 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 and embossment mechanism to provide a wide embossment 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, particularly for highly oriented films where tension is relieved while the tail end is still heated.

REFERENCES:
patent: 3365992 (1968-01-01), Oreher
patent: 3567552 (1971-03-01), Heuff et al.
patent: 3741850 (1973-06-01), Highfield et al.
patent: 4064776 (1977-12-01), Walitalo

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