Patent ID: 6966944

Claim:
An ink jet ink comprising: a colorant; an aqueous medium; and an amide compound which has a structure selected from the group consisting of the general formulae (a) and (b) described below, and a molecular weight below 1000: wherein, n is 1; R 0 is a linear or branched alkanol group of 2 to 4 carbon atoms, —(CH 2 ) m1 COOH where m1 is 2 or 3, —(CH 2 ) m2 SO 3 Na where m2 is 2 or 3 or —(CH 2 ) m3 SO 3 H where m3 is 2 or 3; and R 1 and R 2 are each independently a hydrogen atom or a linear or branched alkanol group of 2 to 4 carbon atoms, substituted with a hydrogen atom or hydroxyl group, where R 1 and R 2 are not a hydrogen atom simultaneously, and wherein, R 0 is phenylene, ethylene, propylene, butylene or cyclohexylene group; and R 1 to R 4 are each independently a hydrogen atom, a linear or branched alkanol group of 2 to 4 carbon atoms or —(CH 2 CH 2 O) n H where n is an integer of 1 to 5, where R 1 and R 2 are not a hydrogen atom simultaneously, and R 3 and R 4 are not a hydrogen atom simultaneously.