Patent ID: 9732242
Date: 2017-08-15
CPC Classifications: B41J,C09B,C09D

Claim:
1. An ink jet recording ink comprising: a dye which has a weight average molecular weight of 850 or less and is represented by Formula (1) below; a water-soluble organic solvent which has an SP value of 9.6 or more and less than 9.7 and is represented by Formula (2) below; and water, wherein a content of a surfactant is less than 0.1% by mass, wherein in Formula (1), R R R L Rb represents a phenyl group, a naphthyl group, a pyrimidyl group, a triazinyl group, or a quinoxaline group, and M in Formula (2), R represents an unsubstituted alkyl group having 2 to 6 carbon atoms, and n represents an integer of 1 to 3.