A textured polyester yarn having improved variation in dyeability along its length is composed of a plurality of individual filaments each having thick and thin sections randomly distributed along the filament axis, said yarn having an Uster evenness value of 1.0 to 10.0%, a T index of 3 to 30 and a...http://www.google.es/patents/US4084622?utm_source=gb-gplus-sharePatente US4084622 - Textured polyester yarns and process for the production thereof
Textured polyester yarns and process for the production thereof
