申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0090114A2
公开(公告)日:1983-10-05
Reactive dyes which in the free acid form are of the formula:
wherein Q is a cellulose reactive group attached to a carbon atom of B and selected from HO3SO.CH2CH2.SO2, CH2 = CH.SO2, and NR2Q1 where Q' is halotriazinyl, halopyrimidinyl, 2,3-dichloro-quinoxaline-5- or 6-sulphonyl, or 2,3-dichloroquinoxaline-5- or 6-carbonyl;
R and R2 are each independently H or C1-4 alkyl;
B is a radical containing a benzene or naphthalene nucleus which is linked directly to the azo group;
R' is the radical of a cyclic dicarboxylic anhydride
n is 0 or 1; and m is 1 or 2,
providing that when B is of the benzene series and R1 is CH2CH2, Q is not CH2=CHSO2 or HO3SO.CH2CH2SO2.
Dyestuffs are characterised by good dyeing and discharge properties.
游离酸形式的活性染料的式子为
其中 Q 是连接到 B 的碳原子上的纤维素活性基团,选自 HO3SO.CH2CH2.SO2、CH2 = CH.SO2,以及 NR2Q1,其中 Q' 是卤代三嗪基、卤代嘧啶基、2,3-二氯喹喔啉-5-或 6-磺酰基,或 2,3-二氯喹喔啉-5-或 6-羰基;
R 和 R2 各自独立地为 H 或 C1-4 烷基;
B 是含有苯核或萘核的基团,直接与偶氮基相连;
R' 是环状二羧酸酐的基团
n 为 0 或 1;m 为 1 或 2、
条件是当 B 属于苯系列且 R1 为 CH2CH2 时,Q 不是 CH2=CHSO2 或 HO3SO.CH2CH2SO2。
染料具有良好的染色和放电特性。