Improved slitting of plastic film

Details Improved slitting of plastic film Improved slitting of plastic film

1991-05-23

1992-07-07

Buffalow, Edith L.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428407, 428906, 428516, 15624411, B32B 516

Patent

active

051282054

ABSTRACT:
The invention relates to a process for improving the slittability and subsequent wind-up of a roll of clear plastic multilayer coextrusion film by the addition to the skin layer of a slitting aid. The slitting aid is an inorganic filler material the presence of which in the skin layer reduces or eliminates telescoping of the rolled coextruded film, facilitates faster line speeds, and allows the reduction of taper tension as the wind-up process progresses.

REFERENCES:
patent: 3980611 (1976-09-01), Anderson et al.
patent: 4764425 (1988-08-01), Balloni et al.

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