Process for dyeing wet-spun aromatic polyamides in gel form

Details Process for dyeing wet-spun aromatic polyamides in gel form Process for dyeing wet-spun aromatic polyamides in gel form

D - Textiles, Paper

06

P

8/31.07

D06P 3/24 (2006.01) D01F 6/60 (2006.01) D06P 1/92 (2006.01) D06P 7/00 (2006.01)

Patent

CA 1061507

ABSTRACT OF THE DISCLOSURE At present it is not possible to adequately dye synthetic fibers which contain aromatic radicals, The present invention seeks to overcome the drawback in the art by providing a process for the production of dyed filaments from aromatic polyamides, which comprises dyeing wet-spun filaments of an aromatic polyamide, which optionally contains heterocyclic groups and which is not modified with acid or basic groups, before, during or after stretching, in an aqueous bath containing a cationic or anionic water-soluble dye.

233098

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