Method and composition for forming a decorative coating on a sub

Details Method and composition for forming a decorative coating on a sub Method and composition for forming a decorative coating on a sub

1995-02-16

1997-07-01

Beck, Shrive

Coating processes

Nonuniform coating

Wrinkled or crackled coating

427287, 4273855, 427379, B05D 506, B05D 302

Patent

active

056436351

ABSTRACT:
An ink composition and method of printing naturally formed patterns on the surface of various materials, such as paper, glass, ceramic, metal or plastics. The printing method uses a coating liquid of a composition comprising a principal component and a hardener component, applying the component system to a surface through the use of any of a plurality of application methods, and drying the applied surface in two stages which includes a primary drying stage, partly at room temperature, and a forced air drying stage, at elevated temperatures. The process results in a decorative lightly textured surface of a crackled appearance. The principal component of the coating composition consists of a polyol resin, ethylene glycol acetate, ethyl acetate, toluene, filler and pigment. The hardener component consists of blocked isocyanate, ethyl acetate and toluene. The method of the present invention includes mixing of the principal component with the hardener component so that, during the coating and drying stages, the polyol resin reacts with the blocked isocyanate while part of the solvent and blocked isocyanate is volatilized from the coated surface layer of the coating liquid. Natural patterns are formed on the surface of coating materials during hardening as hardening is delayed in the inner layer of the coating liquid while the surface layer shrinks.

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Kirk-Othmer "Encyclopedia of Chemical Technology", Third Edition, vol. 6, pp. 388-389, 1979.

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