INHOMOGENEOUS SEWING THREAD AND METHOD OF ITS PREPARATION Russian patent published in 2012 - IPC D02G3/26 D02G1/02 

Abstract RU 2453641 C1

FIELD: textiles, paper.

SUBSTANCE: sewing thread contains at least two twisted composite strand yarn, consisting of a complex para-aramid yarn - Rusar with decomposition temperature above 500 °C, and a breaking elongation of 2.5-5.0% and the strength of 140-250 cN/tex, and polyoxadiazole complex yarn - Arselon with decomposition temperature above 300°C, with a breaking elongation of 5.0-10.0% and strength of 30-50 cN/tex, with a linear density 29.0-30.0 tex, and non-equilibrium of finished sewing threads is no more than 2 turns/m. The method of preparation of the claimed yarn includes forming at least two combined strand yarn, their doubling and twisting in a twisted thread.

EFFECT: obtaining a high quality sewing thread, both on physical and mechanical properties and tailoring properties and for the reasonable price, without thermofixation and dissecting compositions.

3 cl, 3 tbl, 2 dwg

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RU 2 453 641 C1

Authors

Rodionov Vjacheslav Alekseevich

Doriomedov Mikhail Sergeevich

Dates

2012-06-20Published

2011-04-08Filed