Structure of paper/polyester composite yarn and its properties
In view of low breaking strength and elongation at break of pure paper yarn,it is combined with long filaments to enhance yarn performance.The appearance,yam structure,and yarn properties of imported paper/polyester composite yarns are tested and analyzed.The research results indicate that the composite yarn has a spiral structure and is wrapped around two polyester filaments in an"8"shape with paper yam.The yarn structure is loose on the outside and tight on the inside;The yarn has good evenness,less fuzz,high breaking strength and elongation;Under external stretching,the composite yarn elongates,the yarn cross-section shrinks,and the paper yarn breaks before the polyester filament.