Fiber reactive anthraquinone dyes

Details Fiber reactive anthraquinone dyes Fiber reactive anthraquinone dyes

C - Chemistry, Metallurgy

09

B

C09B 1/58 (2006.01) C09B 62/44 (2006.01)

Patent

CA 2165178

Fiber reactive dyes of the anthraquinone type which provide brilliant violet colors with- out metal complexing. These dyes may be represented by formula (I), wherein W is se- lected from NR2 and oxygen; R is indepen- dently selected from hydrogen, C1-C6 alkyl C1-C6 alkoxy; R1 is selected from hydrogen C1-C6 alkyl and phenyl; R2 is selected from hydrogen and C1-C6 alkyl; R3 is selected from hydrogen, and C1-C4 alkyl; n is an integer of 1 or 2; and Y is CH=CH2, or CH2CH2Z wherein Z is a group capable of being split off by the action of an alkali reagent.

Colorants de type anthraquinonique, réactifs aux fibres, qui donnent des couleurs d'un violet brillant et ne contiennent pas de complexants métalliques. Ces colorants peuvent être représentés par la formule (I) où: W est choisi entre le NR2 et l'oxygène; R est choisi indépendamment parmi l'hydrogène, l'alkyle C1-C6 et l'alcoxy C1-C6; R1 est choisi parmi l'hydrogène, l'alkyle C1-C6 et le phényle; R2 est choisi entre l'hydrogène et l'alkyle C1-C6; R3 est choisi entre l'hydrogène et l'alkyle C1-C4; n est le nombre entier 1 ou 2; Y est CH=CH2, ou CH2 CH2Z, Z étant un groupe susceptible d'être séparé par l'action d'un réactif alcalin.

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