FIELD: textile.
SUBSTANCE: invention relates to the production of textiles and in particular to the production of knitted textiles, woven textiles, non-woven textiles and any other textile product that uses yarns, filaments or fibers. More particularly, the invention relates to improving the manufacturing methods of synthetic polyamide-based textiles. Method for producing a synthetic yarn based on a polyamide having a high equilibrium moisture absorption includes the following steps: a polyamide and a polyether amine having an average molecular weight of at least 1500 are reacted to produce a modified polyamide comprising a polyether amine, wherein the modified polyamide comprises at least several carboxyl groups substituted with polyester amine to increase the moisture absorption of the polyamide; and yarn is formed of the molten mass of said modified polyamide; wherein the polyamide and the polyether amine are contacted in a molten state in the presence of an additive capable of reacting with amino groups of the polyamide and with amino groups of polyether amine in at least one extruder, from where the polymer is fed to the spinneret to form the yarn.
EFFECT: improving methods for producing polyamide-based synthetic textile articles.
38 cl, 6 dwg, 3 ex
