Recording liquid

Abstract

Abstract A recording liquid comprising a recording agent for giving recorded images and a liquid medium for dissolving or dispersing the recording agent, is characterized in that the recording agent comprises at least one of the compounds represented by the following formula (A) and at least one of the compounds represented by the following formula (B): Formula (A) ##STR1## Wherein Q 1 and Q 2 each represent benzene ring residue or naphthalene ring residue, unsubstituted or substituted by amine, hydroxyl, or sulfo; R 1 and R 2 each represent hydrogen, hydroxyl, or amino; and R 3 and R 4 each represent hydrogen or sulfo in the form of salt with an alkali selected from sodium, lithium, potassium, ammonium, and amines, wherein the number of sulfo groups in the molecule is 2 to 8; Formula (B) ##STR2## Wherein Q 3 and Q 6 each represent phenyl or naphthyl, substituted or unsubstituted; Q 4 and Q 5 each represent 1,4-phenylene or 1,4-naphthylene, substituted or unsubstituted; R 5 and R 6 each represent hydrogen, hydroxyl, or amino; R 7 and R 8 each represent hydrogen or sulfo in the form of salt with an alkali selected from sodium, lithium, potassium, ammonium, and amines; X represents --NH--, --N═N--, or --CH═CH--; and n is 0 or 1.

Inventors

• 👤 Tokuya Ohta
• 👤 Tsuyoshi Eida

Bibliographic Details