abstract |
Filament and yarns, esp. of acrylonitirle (co)-polymers, are brightened by treatment with fatty acid derivs. (I) and heating, with the improvement that (I) are applied in waxy or solid form, opt. contg. water, antistats (esp. polyoxyalkylenes) and/or textile wax. Process gives homogeneous, complete coating without mess or use of org. solvents. |