FDY (Fully Drawn Yarn) is a wound yarn with high orientation and medium crystallinity obtained through stretching and setting during the spinning process. The strength of FDY products is above 4.5 cN/dtex, and the elongation is mostly 43-48%. It is fully stretched and can be directly used in textile processing. In actual production, there are few broken filaments, high dyeing uniformity, and good strength.

It is a type of incompletely drawn chemical fiber filament obtained through high-speed spinning, with properties between undrawn yarn and drawn yarn. POY has a strength of 3.8-4.2 cN/dtex and an elongation of mostly 65-72%. It features low orientation, low crystallinity, stable structure, and excellent processability, and can be made into high-elastic yarn, low-elastic yarn, etc.

HOY is an ultra-high-speed spun yarn produced by the one-step spinning and drawing process, with properties between FDY and POY. Hengshen nylon HOY mostly has a strength greater than 3.8-4.2 cN/dtex and an elongation of 55%-65%. Compared with FDY, HOY has higher elongation, higher boiling water shrinkage, slightly lower strength, and a softer hand feel in fabrics.

DTY is a crimped yarn made by taking POY as the original yarn and performing stretching and false twisting simultaneously on a texturing machine, which causes it to undergo changes such as stretch deformation and heat setting. Therefore, DTY has good bulkiness and elasticity.

Nylon 6-Monofilament is produced using a one-step high-speed spinning process. It features high strength, uniform fineness, and good light resistance. Textiles made from it have a flat surface, lightweight texture, high transparency, good toughness, and tear resistance. This technology once won the First Prize of the Science and Technology Progress Award of China National Textile and Apparel Council.

High-speed spinning equipment is adopted, with a production efficiency 5-8 times that of similar monofilaments. It features high fiber-splitting efficiency, high strength, and such product characteristics as no network points and low cohesion. This technology once won the First Prize of the Science and Technology Progress Award of China National Textile and Apparel Council.

It features low single filament fineness (dpf reaching 0.3 - 0.5) and low bending stiffness. Fabrics made from this product have a delicate and refined appearance, a soft and smooth hand feel, and can achieve the effects of being light, soft, cool and slippery.