Patent ID: 6425331
Filing Date: 2002-07-30
Classification: B41F,B41J,B41M,B44C,C09D,D06P,G03G

Abstract:
A method of printing using heat activated dye solids, comprising the steps of:a. preparing an ink formulation comprising heat activated dye solids, a liquid carrier, and at least one emulsifying enforcing agent for shielding the heat activated dye solids, wherein said emulsifying enforcing agent emulsifies substantially all of said heat activated dye solids within said liquid carrier; b. supplying an ink jet printer that prints liquid ink with said ink formulation; c. printing said ink formulation by means of said ink jet printer to form an image on a substrate at a temperature which is below the temperature at which said heat activated dye solids activate; and d. subsequently activating said heat activated dye solids by the application of pressure and heat at a temperature which is sufficient to activate the heat activated dye solids.