POLYESTER DIFFERENTIAL SHRINKAGE COMBINED FILAMENT THREAD AND METHOD FOR MANUFACTURING THEREOF Russian patent published in 2009 - IPC D02G3/04 

FIELD: textiles, paper.

SUBSTANCE: group of inventions relates to manufacturing of the combined polyester thread. Polyester combined filament thread consists of self-extensible polyester complex thread A and heat-shrinkable polyester complex thread B. Polyester complex thread contains a medullary part and an assemblage of costal parts running in the radial direction from the medullary part along the longitudinal direction of the medullary part, and simultaneously meets the below-mentioned conditions (a)-(c): (a) 1/20≤S_B/S_A≤1/3; (b)_{0.6≤LB/DA≤3.0; (c) WB //DA≤1/4; whereSA - cross-sectional area of the medullary part,DA - diameter of the medullary part when its cross-section is circle, and diameter of a circumscribed circle when it is not circle, and SB,LB and WB are the area of cross-section, maximum length and maximum width of costal parts, respectively.}

EFFECT: production of clothing possessing high elasticity, excellent softness, and dry-by-touch properties.

6 cl, 2 dwg