Patent ID: 6036993
Filing Date: 2000-03-14
Classification: B05D,B41M

Abstract:
A process for depositing a composition onto an ink layer or uninked surface in a printing process to produce a high gloss coating comprising the steps of:1). Preparing a high solids composition comprising:a. about 42% to about 85% by weight of a film-forming polymer, said film-forming polymer comprising a mixture of high molecular weight and low molecular weight film-forming polymers, said mixture of polymers comprising about 5% to about 95% by weight of a high molecular weight film-forming polymer and about 5% to about 95% by weight of a low molecular weight film-forming polymer, said high molecular weight film-forming polymer having an average molecular weight ranging from about 25,000 to about 2,000,000 and said low molecular weight having an average molecular weight ranging from about 100 to about 25,000;b. an amount of a wetting agent within the range of about 0.005% to about 10% by weight of said composition; andc. a solvent comprising water or an aqueous mixture of solvents;2). Determining a desired viscosity of said composition to be deposited onto said ink layer or said uninked surface;3). Determining the temperature above or below ambient temperature at which said composition attains the viscosity determined in step 2);4). Maintaining the viscosity of said composition at the temperature determined in step 3); and5). Depositing onto said ink layer or said uninked surface said composition at said set temperature, said composition drying to a coating on said layer or surface having a gloss reflection value of at least about 40.degree..