| abstract |
AN IMPROVEMENT IN THE DYEING AND PRINTING OF POLYAMIDE FIBERS, COMPRISING AN AN AFTER-TREATMENT THE INTRODUCTION OF FIBERS WHICH HAVE BEEN FRESHLY DYED OR PRINTED WITH A FIBER REACTIVE DYESTUFFF, PRIOR TO THE CONVENTIONAL DRYING, INTO AN AQUEOUS BATH WHICH CONTAINS CERTAIN HALOGENTAED ORGANIC PRODUCTS IN COMBINATION WITH A CERTAIN KIND OF TERTIARY SATURATED ALIPHATIC DI-TRI- OR TETRA-AMINE; THE PH OF THE BATH IS ADJUSTED TO ABOUT 4 TO 5.5, AND THE BATH CONTAINING THE FIBERS IS THEN HEATED; ALSO THE AFORESAID AFTER-TREATMENT BATHS PER SE. |