Coating processes – Application to opposite sides of sheet – web – or strip
Patent
1991-12-12
1993-06-22
Pianalto, Bernard
Coating processes
Application to opposite sides of sheet, web, or strip
4273855, B05D 100
Patent
active
052215555
ABSTRACT:
A photographic support material comprising a plastic foil or plastic coated paper coated on the rear side with a composition that can be printed with thermal printers and does not pick up dirt or discoloration in developing baths, has good adhesive tape adhesion, good printability with conventional printers, good abrasion resistance and bath resistance, and a good antistatic finish. The coating composition comprises an aqueous mixture of colloidal aluminum modified silica, a polyfunctional aziridine, an alkali salt of an organic polyacid, and a plastic dispersion with free carboxyl groups, a residual monomer content of <200 ppm, >50 mol % rigid monomers in the polymer and the interfacial tension of the dried film of >50 dyn/cm.
Saverin Eckehard
Tyrakowski Hans-Udo
Felix Schoeller Jr. GmbH & Co. KG
Pianalto Bernard
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