Patent ID: 6051645
Filing Date: 2000-04-18
Classification: C09D

Abstract:
An ink jet recording ink, comprising:water;a pigment;a water-soluble organic solvent; anda plurality of dispersants each having a different HLB, given that respective HLBs of n (n.gtoreq.2) kinds of dispersants are HLB.sub.1, HLB.sub.2, . . . , HLB.sub.n and respective weights are W.sub.1, W.sub.2, . . . , W.sub.n, satisfying the following formula:10.ltoreq.(.SIGMA.(W.sub.y .times.HLB.sub.y)/.SIGMA.W.sub.y).ltoreq.40(wherein y is an integer from 1 to n).