COMPOSITION FOR DYEING MATERIALS BASED ON AROMATIC HETEROCYCLIC POLYMERS Russian patent published in 2000 - IPC

FIELD: textile industry. SUBSTANCE: when performing dyeing with cationic dyes from aqueous solutions, sodium alkyl sulfates with gross formulas C₁₂H₂₅OSO₃Na, C₁₅H₃₁OSO₃Na, and C₁₆H₃₃OSO₃Na are used as intensifiers. Aqueous dyeing bath contains 0.1-0.5 g/l cationic dye, 0.5-2 g/l sodium alkyl sulfate, and 2-5 g/l acetic acid. Invention can be used in manufacture of heat- and fire-resistant high-strength fibrous materials based on aromatic heterocyclic polymers with high hygienic characteristics. EFFECT: enabled uniform and intensive dyeing with better hygienic characteristics. 1 tbl, 17 ex