Recording liquid

Abstract

Abstract PCT No. PCT/JP95/00336 Sec. 371 Date Jan. 13, 1997 Sec. 102(e) Date Jan. 13, 1997 PCT Filed Mar. 2, 1995 PCT Pub. No. WO96/26985 PCT Pub. Date Sep. 6, 1996The present invention relates to a recording liquid characterized by comprising an aqueous medium and at least one monoazo dye selected from dyes, the free acid forms of which are represented by general formula {I}: <IMAGE> {I} (wherein R1, R2, and R3 each independently represents a substituted or unsubstituted alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, a halogen atom, a hydrogen atom, a hydroxyl group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted sulfamoyl group, a substituted or unsubstituted amino group, a nitro group, a sulfonic ester group, a sulfonyl group, a COOH group, or a carboxylic ester group; m represents a number of 0, 1, or 2; and R4, R5, R6, and R7 each independently represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 1 to 18 carbon atoms, an aryl group, an aralkyl group, an alicyclic group, or a heterocyclic group, and each may have a substituent when not representing a hydrogen atom, provided that at least one of R4, R5, R6, and R7 represents a group having a COOH group as a substituent).

Inventors

• 👤 Nobuyoshi Satoh
• 👤 Takashi Hirasa
• 👤 Yukichi Murata

Bibliographic Details