Patent ID: 7883200
Filing Date: 2011-02-08
Classification: A63F,B41M,D21H,G03G,Y10T

Abstract:
1. An ink jet image recording method for recording an image on a recording sheet, the method comprising ejecting droplets of an ink that comprises a hydrophilic colorant and at least one of water and a water-soluble organic solvent on a surface of the recording sheet so as to record an image thereon; wherein the ink comprises a water-soluble polymer having a hydrophobic portion and a hydrophilic portion; wherein the recording sheet comprises carboxylic acid and base paper; wherein the base paper comprises pulp fiber and filler; wherein the solubility of the carboxylic acid in water at 20° C. is not less than 1 gram per 100 grams of water, and the carboxylic acid is applied to the base paper in an amount from 0.1 g/m wherein the hydrophilic portion of the water-soluble polymer comprises a carboxyl group.