| 摘要 |
Disclosed are new acid azo dyes prepared from 2-amino-cinnamoylthiophene compounds. These dyes give bright red to blue shades, for example, on polyester, cellulose acetate, wool and particularly polyamide fibers and exhibit improvements in one or more of such properties as bathochromic shift, fastness to light, sublimation, chlorine, heat, ozone, gas, perspiration, crock, and wash, build, pH stability, bloom resistance, depth of shade, leveling, strike rate, migration, and the like. The dyes have the general formula <IMAGE> wherein: R14 is H or alkyl; R is a substituent selected, for example, from alkyl, substituted alkyl, hydroxy, alkoxy, halogen, nitro, alkoxycarbonyl, alkanoyloxy, alkanoyl, cyano, alkylamino, and dialkylamino; C1 represents an aniline, tetrahydroquinoline or benzomorpholine coupling component which may be extensively substituted; each of R12 and R13 is selected from H, alkyl, alkoxy, acyl, halogen, and the like; and at least one of the water solubilizing groups, -SO3M or -OSO3M is present in the dye molecule.
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