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Yarn crimp contraction explains how textured polyester yarn develops bulk, stretch and recovery after relaxation or heat, changing fabric feel and performance.

False-twist texturing converts suitable polyester feed yarn into a bulkier, more textured yarn. In friction-disc texturing, the relationship between disc surface motion and yarn running speed is often described by the D/Y ratio. This setting helps engineers understand h

Learn how molten PET becomes polyester filament through spinnerets, quenching and drawing before the filaments are converted into POY, FDY or DTY yarn.

Learn how polyester yarn is made from PET chips and understand the difference between POY, FDY and DTY before polyester becomes knitted fabric.