Levelling polyamide fiber dyeing with sulfonated long chain alkyl diphenyl ether and quaternized long chain alkyl ammonium alkylene oxide condensate

Abstract

Abstract A PROCESS FOR THE EVEN, NON-STREAKY DYEING OF FIBRE MATERIAL MADE FROM SYNTHETIC POLYAMIDE OF DIFFERING DYESTUFF-AFFINITY, SUCH AS TEXTURED POLYAMIDE FIBRE MATERIAL, IS DISCLOSED, WHICH COMPRISES PRE-TREATING SAID FIBRE MATERIAL, AT A PH-VALUE OF FROM 2 TO 7 AND AT TEMPERATURES OF FROM 30 TO 130*C., WITH AQUEOUS SOLUTION OF A MIXTURE OF AUXILIARIES CONSISTING OF AT LEAST ONE MONO- OR- DI-SULPHONATED HIGHER-ALKYL-DIPHENYLETHER AS ANION-ACTIVE COMPOUND AND AT LEAST ONE CATION-ACTIVE, NON-QUATERNATED OR QUATERNATED COMPOUND CONTAINING AT LEAST ONE BASIC NITROGEN ATOM TO WHICH ARE BOUND AT LEAST ONE POLYGLYCOL ETHER CHAIN AND AT LEAST ONE ALIPHATIC RADIAL HAVING FROM 10 TO 18 CARBON ATOMS, THE MOLECULE CONTAINING FROM 8 TO 20 DI-ALKYLENE-OXY GROUPINDS, AND , OPTIONALLY, FURTHER AUXILIARIES NORMALLY USED IN DYEING, ADDING THEN AT TEMPERATURES OF FROM 30 TO 100*C., PRE-DISSOLVED ANIONIC DYESTUFF, AND COMPLETING THE DYEING IN THE HEAT. BY THIS PROCESS, EVEN ON POLYAMIDE FIBRE MATERIAL TENDING TO EXHIBIT STREAKINESS UPON DYEING, EVEN AND NON-STREAKY DYEINGS ARE OBTAINED WITH, IN THEMSELVES, POORLY LEVELLING DYESTUFFS, WITH EXTENSIVE EXHAUSTION OF THE DYE BATH.

Inventors

• 👤 Jakob Bindler
• 👤 Rudolf Keller

Bibliographic Details