FIELD: textile industry. SUBSTANCE: threads are manufactured by formation from spinning solution containing copolyamides with heterocycles in their chains dissolved in amide solvent. Polymer is extruded through air interlayer 5-35 mm long with spinning draft -50 to -80% and subjected to two-step coagulation. The first coagulation bath contains water with 0- 15% of amide solvent, and the second one water with 18-25% of amide solvent. Thread is characterized by stretch 45 to 120%. Thread is washed, dried, thermally treated and stretched. Preliminary orientation stretching before heat treatment at 160-250 C is possible. EFFECT: improved consumer's characteristics. 2 cl, 7 ex
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