STABILIZATION PROCESS OF DYES ON POLYAMIDE AND FIBER DYES ON FIBRE POLYAMIDE TREATED AS THE METHOD.

摘要

The invention relates to a method of improving the thermal stability and / or photochemical materials polyamide fiber whose shape is stabilized. This method comprises treating the polyamide fiber material, prior to fixing to obtain stable and defined shapes, with a compound having a benzene radical which carries a sterically hindered phenol group, and other aliphatic or aromatic carbocyclic 1 or 2 rings, bonded to the benzene radical by a bridging member having an amide function, this second residue substituted by one or two sulfo groups, optionally salified.