One-step POY+FDY composite spinning technology

Abstract

The invention relates to a one-step POY+FDY composite spinning technology. The technology comprises the steps that 1, a composite double-body spinning box is adopted and corresponds to two metering pumps and two sets of spinning components, chinlon-1 chips enter a spinning box body A for spinning after being subjected to screw melting extrusion, heating, melting and filtration, so that chinlon-1 fiber is obtained, and chinlon-2 chips enter a spinning box body B for spinning after being subjected to screw melting extrusion, heating, melting and filtration, so that chinlon-2 fiber is obtained; 2, the chinlon-1 fiber is directly fed into a POY draw-off godet through a yarn guide after being subjected to cooling oiling, the speed of the POY draw-off godet is 4300-4400 m / min, the chinlon-2 fiber is directly fed into an FDY draw-off godet and a heat disc through a yarn guide bar and a pre-wire-stitching machine after being subjected to cooling oiling, the speed of the FDY draw-off godet is 3800-4200 m / min, and the temperature of the heat disc is 155+ / -4 DEG C; 3, shaped chinlon-2 fiber and chinlon-1 fiber are fed into a composite draw-off godet at the same time and then interlaced through an interlacing jet, and then POY / FDY composite yarn is obtained.

Description

technical field [0001] The invention relates to the technical field of spinning, in particular to a one-step POY+FDY composite spinning process. Background technique [0002] With the improvement of people's living standards, the requirements for the performance of clothing fibers are getting higher and higher. At the same time, the market competition for chemical fiber products is unprecedentedly fierce. This requires us not only to provide fibers with excellent performance, but also to reduce the number of processes in the production process. In order to reduce the production cost of fibers and improve the market competitiveness of products. In recent years, most of the best-selling fabrics in the market are composited with the same or multiple fibers with different properties. For example, POY+FDY products are generally composited with two single varieties in the subsequent drafting and twisting process. The method has the following problems: 1. The production process is...

AI Technical Summary

Problems solved by technology

In recent years, most of the best-selling fabrics in the market are composited with the same or multiple fibers with different properties. For example, POY+FDY products are generally composited with two single varieties in the subsequent drafting and twisting process. The method has the following problems: 1. The production process is long; 2. The equipment investment is large; 3. The efficiency is low and the production cost is high; 4. The stability of the product quality is poor; Improvement of product grade

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