PET/PBT METHOD FOR PREPARING A POTENTIAL CRIMPED PET/PBT CONJUGATED YARN WITH HIGH ELASTICITY THAT CAN EXPRESS MELANGE COLOR

摘要

The present invention relates to a highly elastic PET/PBT latent crimped composite yarn capable of exhibiting new functionality by compounding polyester undrawn yarn and PET/PBT latent crimped yarn. By stretching polyester undrawn yarn and PET/PBT latent crimped yarn at different draw ratios, heat treatment and air entanglement are formed, the natural emotional expression differentiated from existing composite yarns is expressed. After dyeing, melange color expression is possible. According to the present invention, the latent crimped composite yarn manufactured by forming air entanglement while stretching the polyester undrawn yarn and the PET/PBT latent crimped yarn at different draw ratios exhibits the same effect as the TTD yarn because the diameter of the composite yarn is irregular. The PET/PBT latent crimped composite yarn according to the present invention controls the frequency and intensity of air entanglement periodically or irregularly on the surface of the yarn. possible.