Patent ID: 6379443
Filing Date: 2002-04-30
Classification: C09D

Abstract:
An ink composition for an ink jet recording method comprising the step of ejecting droplets of an ink composition and depositing the droplets onto a heated recording medium,the ink composition comprising a water-soluble organic solvent, water, a colorant present in a state of dispersion in the ink composition, and a plurality of components represented by formula (I): Râ€”[Oâ€”(EO)mâ€”(PO)n]â€”H â€ƒwherein EO represents an ethyleneoxy group; PO represents a propyleneoxy group; m and n are each an integer; and R represents CkH2k+1 wherein k is a natural number of 4 to 18, EO and PO being arranged, regardless of order in the parentheses, randomly or as blocks joined together, wherein the plurality of the compounds represented by formula (I) are classified into a first group of compounds and a second group of compounds, the first group of compounds satisfying a relationship wherein k=6 to 18 and 2/3&lE;m/n&lE;1.5, and having an average molecular weight of 1,000 to 8,000, the second group of compounds satisfying a relationship wherein k=4 to 10, m=1 to 10, n=1 to 5, and 1.5&lE;m/n.