Patent ID: 7141107
Filing Date: 2006-11-28
Classification: C09D

Abstract:
1. A water color ink for ink jet recording wherein the dry viscosity is equal to 100 mPa·s or less, the dynamic surface tension at 10 ms is equal to 45 mN/rn or higher and the dynamic surface tension at 1000 ms is equal to 35 mN/m or less; and wherein said ink is comprised of: water and a colorant and one or more water soluble organic solutions, and further wherein the organic solutions include one or more of: diethylene glycol, thiodiethanol, polyethylene glycol 200 to 600, triethylene glycol, glycerin, 1,2,6-hexanetriol, 1,2,4-butanetriol, petriol, 1,5-pentadiol, N-methyl-2-pyrrolidone and N-hydroxy diethyl pyrrolidone.