ARTICLE WITH DIMENSIONALLY STABLE POLYMERIC MULTIPLE-FILAMENT YARN (VERSIONS) AND METHOD OF FORMING YARN Russian patent published in 2006 - IPC D02G3/00 D02G3/48 

FIELD: method for producing of dimensionally stable polymeric multiple-filament yarn for manufacture of articles used in various branches of industry.

SUBSTANCE: article comprises dimensionally stable polymeric multiple-filament yarn having linear density of at least 7.5 dtex per single filament and retaining strength after fatigue test. Yarn is spun and stretched so that on increasing its linear density per single filament by at least 100% as compared to reference yarn, strength increase extent is kept after fatigue test by at least 19% as compared to reference yarn, for which yarn strength retention after fatigue test is 64%. Linear density of yarn is 3.7 dtex per single filament at twist rate of 19700. Method involves providing availability of polymeric material; spinning multiplicity of single filaments therefrom and forming dimensionally stable yarn from multiplicity of single filaments, said yarn having linear density of at least 7.5 dtex per single filament and retaining strength after fatigue test; spinning and stretching yarn so that strength increase extent is kept after fatigue test per single filament.

EFFECT: increased efficiency and improved quality of yarn and articled produced from said yarn.

27 cl, 5 tbl