Azo compound, ink composition, and colored object

Details Azo compound, ink composition, and colored object Azo compound, ink composition, and colored object

C - Chemistry, Metallurgy

09

B

C09B 35/58 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C07D 231/26 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2562116

A novel azo compound represented by the following formula (1) wherein A represents the following formula (2) and is located preferably in a position meta or para to the azo group; R1 and R2 each independently represents hydrogen, carboxy, sulfo, nitro, C1-4 alkoxy, etc.; R3 and R4 each independently represents hydrogen, halogeno, cyano, carboxy, sulfo, nitro, C1- 4 alkyl, hydroxy, or C1-4 alkoxy; and n is 0 or 1. [In the formula (2), R5 represents cyano, carboxy, C1-4 alky, C1-4 alkoxycarbonyl, or phenyl; and R6, R7, and R8 each independently represents hydrogen, halogeno, cyano, carboxy, sulfo, nitro, C1-4 alkyl, C1-4 alkoxy, or acylamino.] The compound is useful as a black dye, especially one for ink compositions for, e.g., ink-jet prints. Also provided are: an ink composition which contains the compound and has excellent storage stability; and a print obtained through recording with the ink. The print is excellent in light resistance, ozone resistance, fastness to moisture, etc.

Un nouveau composé azo ayant la formule suivante (1) où A représente les formules suivantes (2) et est de préférence en position méta- ou para- sur le groupe azo ; R?1¿ et R?2 ¿représentent chacun indépendamment hydrogène, carboxy, sulfo, nitro, C¿1-4? alkoxy, etc. ; R?3¿ et R?4¿ représentent chacun indépendamment hydrogène, halogeno, cyano, carboxy, sulfo, nitro, alkyle en C¿1-4? , hydroxy ou C¿1-4? alkoxy ; n est égal à 0 ou 1. [Dans la formule (2), R?6¿ représente cyano, carboxy, alkye en C¿1-4? , alkoxycarbonyle en C¿1-4? ou phényle ; R?6¿, R?7¿ et R?8¿ représentent chacun indépendamment hydrogène, halogeno, cyano, carboxy, sulfo, nitro, alkyle en C¿1-4?, alkoxy en C¿1-4? ou acylamino.] Le composé est utile en tant que teinture noire, spécialement dans la composition d'encre, par exemple pour les impressions jet d'encre. Est aussi proposée une composition d'encre contenant ce composé et ayant une excellente stabilité lors du stockage, ainsi qu'un tirage obtenu grâce à cette encre. Le tirage possède une excellente résistance à la lumière, à l'ozone, à l'humidité, etc.

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