Method of coating multi-layer graphic film

Details Method of coating multi-layer graphic film Method of coating multi-layer graphic film

1975-12-29

1977-09-13

Willis, Jr., P.E.

Coating processes

With post-treatment of coating or coating material

Heating or drying

96 87R, 427385B, 427407G, 428447, 428480, 428522, B05D 300, G03C 176

Patent

active

040483576

ABSTRACT:
In a coating method for preparing a multi-layer material for use in the graphic arts or in X-ray photography in which a web of a polyester film support has applied to one of its sides to form an anchoring layer an aqueous binder latex containing at least one copolymer of vinyl chloride, vinylidene chloride, acrylic or methacrylic acid esters, vinyl esters, or butadiene, the anchoring layer is heated during drying or heat-setting to a temperature above the glass transition temperature of said copolymeric binder and is conveyed while hot by means of conveying rollers contacting said anchoring layer surface, and at least one gelatin-containing hydrophilic layer is applied to the anchoring layer, the tendency of said anchoring layer to adhere while hot to said conveying rollers or to a contiguous anchoring layer is reduced by incorporating an organo-silane compound in the anchoring layer in the amount of about 5-100% by weight of the copolymer binder.

REFERENCES:
patent: 2785085 (1957-03-01), Sayre
patent: 3591379 (1971-07-01), Plakunov
patent: 3615557 (1971-10-01), D'Cruz
patent: 3615561 (1971-10-01), Dolce
patent: 3619246 (1971-11-01), Bragole
patent: 3733215 (1973-05-01), Van Paesschen
patent: 3758308 (1973-09-01), Roos

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