PROCESS FOR THE PRODUCTION OF FIREPROOF POLYACRYLATE FIBRE WITH A LOW EMISSION OF TOXIC FUMES, UNIFORMLY DYED, AND ACRYLIC FIBRES THUS OBTAINED

摘要

Process for the production of fireproof polyacrylate fibre with a low emission of toxic fumes, uniformly dyed, which includes dissolving a copolymer of acrylonitrile in a solvent, containing an organic pigment, treating the solution to produce a pigmented acrylic fibre and subjecting the pigmented fibre to crosslinking, hydrolysis, acidification and neutralization treatment.