A kind of production system for high elasticity PBT fiber

Abstract

The invention relates to a production system for high-elasticity PBT fibers. The production system comprises a melting device (1), a feeding device (2), a mixing device (3), a wire drawing device (4),a cooling device (5) and a heating device (6). By a preheating design, feeding of nano silver ions in a lateral entering mode, a spinneret plate with a Y-shaped spinneret orifice and the design of annular air inlet, the antistatic property and the stain resistance of produced silks are greatly improved, the probability of breakage of the silks in a production process is greatly reduced, thus, theproduced silks are high in strength and toughness, and have high elasticity, and the spinnability in a follow-up elasticizing process is greatly improved.

Description

Technical field [0001] The invention relates to a production system for high-elasticity PBT fibers, belonging to the field of special fiber preparation. Background technique [0002] PBT is the abbreviation for polybutylene terephthalate. PBT high elastic yarn has superior elastic recovery performance and elastic stability, its elasticity is better than nylon, its chemical resistance is better than spandex, it can be dyed under normal temperature and pressure without a carrier, and it has high color fastness and good dimensional stability. , Anti-pilling, anti-static. And the price is much lower than spandex. The fiber can be widely used in knitted and woven fabrics, and can replace spandex to produce covered yarn. Used for high-end sportswear, swimwear, casual wear fabrics. PBT high elastic yarn has a wide range of application prospects in the fields of sanitary materials, clothing, etc., and is a competitive new product in the elastic fiber market in the future; in the produ...

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Problems solved by technology

PBT high elastic yarn has broad application prospects in sanitary materials, clothing and other fields, and is a competitive new product in the future elastic fiber market; in the production process of traditional PBT elastic yarn, a single heating and melting device and cooling process The side blowing method makes the surface of the monofilament easy to break, hollows appear inside, and hairs and ends are broken; because the traditional production line adopts a single nozzle, the silk channel is fixed, and the chemical fiber crimp is formed by heat setting, which has poor permanence and elastic recovery Poor, poor fiber cohesion, which is not conducive to textile processing; the traditional spinneret hole adopts a circular design, the cross-section of the silk material is relatively single, and the strength and toughness of the monofilament cannot be strengthened

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