NYLON STAPLE FIBRES SUITABLE FOR USE IN ABRASION-RESISTANT HIGH STRENGTH NYLON MIXED YARNS AND MATERIALS

摘要

FIELD: textiles, paper.;SUBSTANCE: invention relates to the textile industry, and refers to nylon staple fibres suitable for use in abrasion-resistant high strength nylon yarns. Obtaining of high strength nylon staple fibres with a denier per filament of about from 1.0 to 3.0 is included, as well as the strength of fibre T of at least about 6.0, and the carrying capacity T₇ greater than about 2.5, including more than 3.2. These nylon staple fibres are manufactured by obtaining tows of filament yarns of nylon with a relatively high molecular weight (RV from 65 to 100), stretching and annealing of such tows using the two-stage stretching operation with annealing and subsequent stapling or other transformation of the tows stretched with annealing in the required high strength nylon staple fibres. The nylon staple fibres thus obtained may be mixed with the accompanying fibres such as cotton staple fibres, for production of nylon/cotton yarns (NYCO).;EFFECT: invention provides creation of nylon staple fibres for production of NYCO-materials which are abrasion resistant and have long service life.;26 cl, 2 tbl