Dacron-chinlon-spandex coating yarn and preparation process thereof

Abstract

The invention relates to the technical field of spandex coating yarn, in particular to dacron-chinlon-spandex coating yarn and a preparation process thereof. According to the preparation process, firstly, dacron yarn POY and chinlon yarn POY are drawn out by corresponding yarn racks, and a false twisting machine platform is adopted for finishing the following processes of (1) feeding a first roller of the false twisting machine platform with the decron yarn POY and the chinlon yarn POY which are drawn out by the yarn racks, after the decron yarn POY and the chinlon yarn POY are wound and combined by the first roller, conducting heating by a deformation heating box, conducting cooling by a cooling plate, conducting twisting by a false twisting machine, and obtaining decron-chinlon combined yarn; (2) feeding a second roller with spandex yarn and the decron-chinlon combined yarn obtained in the step (1), after the decron-chinlon combined yarn is combined with the spandex yarn by the second roller, putting the newly combined yarn above into an air interlacing jet, conducting air injection bonding through the air interlacing jet, and then feeding a winding device with the combined yarn for conducting winding formation processing after the combined yarn is processed by a third roller. According to the preparation process, preparation of the dacron-chinlon-spandex coating yarn can be completed by a one-step method, and the obtained dacron-chinlon-spandex coating yarn is high in bonding degree and uneasy to detach and fracture, and after being dyed, the dacron-chinlon-spandex coating yarn can achieve an effect of presenting double colors in different shades.

Description

technical field [0001] The invention relates to the technical field of spandex-coated yarn, in particular to a polyester-nylon spandex-coated yarn and a preparation process thereof. Background technique [0002] Polyester or nylon raw yarn (POY) is a long undrawn yarn. After being twisted and deformed by a texturing machine, it will become a textured yarn (DTY) with fluffy and crimped properties, while spandex yarn has characteristics unmatched by other fibers. super elastic. Deformed polyester or nylon is used as an outer layer to cover the surface of spandex yarn, forming a spandex covered yarn with inner elasticity and fluffy and soft appearance. Fabrics woven with spandex-coated silk as raw materials, such as double-sided stretch and four-sided stretch, are soft to the touch and good in elasticity, and are favored by the clothing field. As the market has higher and higher requirements for fiber raw materials, the traditional single-color spandex covered yarn can no lon...

AI Technical Summary

Problems solved by technology

As the market has higher and higher requirements for fiber raw materials, the traditional single-color spandex covered yarn can no longer meet the existing market demand. At present, the market has tried to use the finished polyester covered yarn and nylon covered yarn to pass through the double doubling machine. The sub-processes are merged together, and the covered yarn with two-color effect is obtained after dyeing. However, this method has defects such as long process flow, complicated processing procedures, high energy consumption, high production cost, and low efficiency, and the finished products are bonded after merging. The strength is not strong, it is easy to disperse and break, which affects the quality of the product and is not conducive to widespread promotion and use