FIELD: chemistry.
SUBSTANCE: fibre from completely aromatic metatype polyamide, in fact, does not contain layered clayey mineral, and amount of solvent, remaining in fibre, constitutes 1.0 wt % and less counted per the weight of total fibre. Rupture strength of fibre is in the range from 4.5 to 6.0 cN/dtex. For this purpose components or conditions of coagulation bath are properly controlled to obtain dense coagulation state, which does not include structure "shell-core". Plastic stretching within specific degree is carried out with further provision of obtaining appropriate conditions of further stretching at heating.
EFFECT: invention relates to novel fibre from completely aromatic metatype polyamide, which is characterised by high limit of rupture strength and can inhibit coloration or change of colour at high temperatures with simultaneous preservation of hidden properties of fibre from completely aromatic metatype polyamide, such as heat resistance and flame retardation.
3 cl, 1 tbl, 5 ex
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