Dyestuffs containing a (benzenesulphonyl)-substituted sulphonamide first component and an indole first component

Abstract

Abstract Disazo dyestuffs which in the form of the free acid correspond to the formula IN WHICH R1 is aryl, a C1-C4-aliphatic radical or dialkylamino with 1-6 carbon atoms in the alkyl radical; R2 is chlorine, bromine, alkoxy, or alkyl; R3 and R4 are hydrogen, chlorine, bromine, alkoxy, or alkyl; R5 is alkyl or aryl; R6 is hydrogen, alkyl, or alkyl substituted by cyano, carbonamide or carboxyl; R7 is a substituent, such as alkyl, alkoxy, halogen, nitro, sulfo, or cyano; B is a 1,4-phenylene or 1,4-napthylene radical; M IS A NUMBER 0-2; AND N IS A NUMBER 0-2; AND THEIR USE FOR THE DYEING AND PRINTING OF NATURAL AND SYNTHETIC FIBER MATERIALS CONTAINING AMIDE GROUPS, FOR EXAMPLE THOSE OF WOOL, SILK AND POLYAMIDE, SUCH AS POLY- Epsilon CAPROLACTUM OR THE REACTION PRODUCT OF HEXAMETHYLENE-DIAMINE WITH ADIPIC ACID, ARE DISCLOSED. The dyeings obtained, especially those on polyamide materials, are distinguished by good fastness properties, especially by good fastness to wet porcessing and good fastness to light.

Inventors

• 👤 Richard Sommer
• 👤 Gerhard Wolfrum

Bibliographic Details