YARN OF TEXTILE MULTI-FILAMENT HOLLOW THREADS, METHOD FOR MANUFACTURE OF SUCH THREADS AND CONTINUOUS TEXTILE WEB MANUFACTURED FROM SUCH THREADS Russian patent published in 2002 - IPC

FIELD: textile industry. SUBSTANCE: yarn is composed of hollow-section filaments or strands produced by spinning of hollow-section filaments of 10 dtex gage from melted polyamide composition. Hollow section of said filaments is such that area of central part of section is at least 5% of total filament section. Yarn has U factor of less than 3% and number of filaments with arced section less than 30% of the total number of filaments having hollow section. Continuous webs, both knitted and woven, are manufactured from flat, twisted or textured yarn. EFFECT: increased efficiency and uniform properties along the whole length of yarn. 23 cl, 2 dwg, 1 tbl