Method for surface treatment of film

Details Method for surface treatment of film Method for surface treatment of film

1988-06-06

1989-05-23

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15100, 151035, 156155, 156281, 156344, B32B 3112, B32B 3116

Patent

active

048327727

ABSTRACT:
There is provided a method for plastic film surface treatment for improving printability and adhesion properties which comprises feeding a plastic film and a wiping web in the opposite direction to each other in a ratio of the film running speed to the wiping web running speed being 1/1 to 100/1 and bringing them into contact with each other between knip rolls under a proper pressure, whereby a weak layer containing oligomers and additives is wiped off from the plastic film surface. The treatment improves the printability and adhesion of film inexpensively in a stable manner without being affected by the varied properties of film to be treated and also without deteriorating the physical properties of the film.

REFERENCES:
patent: 1949868 (1934-03-01), Keuffer
patent: 4010514 (1977-03-01), Fischer et al.

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