Patent ID: 6328393
Filing Date: 2001-12-11
Classification: C09D,H01R

Abstract:
A high resolution ink jet printing process for forming an image, comprising:applying in image-wise fashion to a substrate an aqueous ink composition comprising:a) a pigment dispersion comprising pigment particles and a dispersant,b) a solvent, andc) water,wherein said aqueous ink composition possesses a latency .gtoreq.10 seconds in a printhead having at least one nozzle opening of a diameter or size ranging from about 10 to about 49 microns,wherein said printing process is conducted by an ink jet printhead having a resolution of >360 spi, said printhead being selected from the group consisting of a single printhead, a partial-width printhead and a full-width array printhead, andwherein the pigment particles having a particle size distribution where the particles have an average size or diameter >0.1 micron and at least 50% of said pigment particles have an average diameter or size .ltoreq.0.3 micron with the remaining pigment particles having a diameter or size .ltoreq.3.0 microns.