Patent ID: 7682012
Filing Date: 2010-03-23
Classification: B41J

Abstract:
1. A method of inkjet printing on a substrate, comprising the steps of: (a) providing an ink jet printer that is responsive to digital data signals, said printer being equipped with a page-wide printhead array; (b) loading the printer with the substrate; (c) loading the printer with an ink jet ink set comprising (i) a first colored dye ink comprising a first dye and a first vehicle, (ii) a second colored dye ink comprising a second dye and a second vehicle, (iii) a third colored dye ink comprising a third dye and a third vehicle, (iv) a first fixer ink comprising a first fixing agent for said first, second and third colored dye inks and a fourth vehicle, and (v) a first colored pigment ink comprising a first pigment and a fifth vehicle; and (d) moving the substrate past the page-wide printhead array and printing on the substrate using the inkjet ink set in response to the digital data signals, wherein each of the first, second and third colored dye inks are differently colored and are applied on the substrate in any order and any combination, wherein said first, second and third colored dye inks, are overprinted with the first fixer ink within a time interval of less than 100 ms; and wherein the first colored pigment ink is applied to the first fixer ink within a time interval of no more than about 100 ms after the fixer ink has been applied to the first, the second, and the third colored dyes.