What is polyester low elasticity yarn? What are the uses of polyester low elasticity yarn
What is polyester low stretch yarn? The use of polyester low elasticity yarn. Polyester low elasticity yarn is a type of textured yarn of polyester chemical fiber. It uses polyester chips (PET) as raw material, uses high-speed spinning to produce polyester pre-oriented yarn (POY), and then is drawn and Processed by twisting.
It has the characteristics of short process, high efficiency and good quality. In addition to the general characteristics of polyester such as high breaking strength and elastic modulus, excellent heat setting properties, good resilience, heat resistance, light resistance, strong corrosion resistance, easy washing and quick drying, it also has high bulking, It has the characteristics of good thermal insulation, comfortable hand feel and soft luster.
The main objects of polyester filament network processing include drawn textured yarn (DTY), textured yarn (TY), pre-oriented yarn (POY), fully drawn yarn (FDY), and mixed fiber yarn. Although their network principles are the same, due to the different properties of the network yarns, the characteristics of the finished network yarns are also different, so the process conditions for network processing are also slightly different. Among them, the technology for making network low-elastic yarns is widely used.
For fiber strength, higher is not always better. For example, most of the damage to polyester fabrics is not caused by insufficient fiber strength. For polyester low-elastic yarn, a strength of 2.5cN/dtex and an elongation of 12% to 30% can meet the requirements for weaving and wearing. The higher its toughness (strength × elongation/2), the better. Fibers with high toughness not only have good intrinsic quality, but are also wear-resistant and fold-resistant. In actual production, different weaving methods have different requirements for toughness. For example, weft knitting machines require that the strength of DTY is much lower than that of warp knitting and weaving. The elongation range of DTY for weft yarns is wider, but the elongation range of warp yarns is wider. The degree cannot be too high. In DTY production, the strength and elongation are generally controlled by adjusting the stretching ratio of the filament. As the draw ratio increases, the strength of the filament increases and the elongation decreases. However, when the draw ratio is too large, the strength and elongation of the filament decrease.
Uses of polyester low-elastic yarn:
Polyester low-elastic yarn is an ideal raw material for knitting (weft knitting, warp knitting) or weaving processing, and is suitable for production Clothing fabrics (such as suits, shirts), bedding (such as quilt covers, bedspreads, mosquito nets) and decorative items (such as curtain fabrics, sofa cloths, wall coverings, car interior decoration fabrics), etc.
The fine denier yarn (especially the three-leaf special-shaped yarn) is more suitable for silk-like fabrics, while the medium-thick denier yarn can be used for wool-like fabrics.
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Polyester low elasticity yarn Uses of polyester low elasticity yarn
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