Patent ID: 7399349
Filing Date: 2008-07-15
Classification: B41M,C09D

Abstract:
1. An ink for ink jet recording, which comprises a dye, water, a water-miscible organic solvent and a compound represented by the following formula (1): wherein R represents an alkyl group, an aryl group or a heterocyclic group; when a plural number of R's are present, the plurality of R's may be the same or different; at least two of a plurality of R's may be linked with each other to form a cyclic structure; L represents a divalent or higher linking group; M represents a hydrogen atom, an alkali metal cation, an ammonium ion, an organic amine cation, or a negative ion sign; q and r each represents an integer of 1 or more; k and m each represents 0 or an integer of 1 or more; n represents an integer of 1 or more; p represents 0 or an integer of 1 or more; (p+r) is 3 or 4, when (p+r) is 4, the N atom represents a quaternary ammonium cation and one of the M's represents a negative ion sign, and wherein the dye includes a compound represented by the following formula: wherein A represents a 5-membered heterocyclic group; B G, R R