Processing method of polyester/polyamide filament differential shrinkage air multi-textured yarn

Abstract

The invention relates to a processing method of polyester / polyamide filament differential shrinkage air multi-textured yarn, which comprises the following steps: drawing 1-3 groups of polyester core filaments on a parallel drawing machine to 2-5 times at the temperature of 140-200 DEG C, and drawing 1-6 groups of polyamide 6 skin filaments to 1-3 times at the temperature of 90-160 DEG C; inputting the polyester core filaments and the polyamide skin filaments comprising one component or combining different components into an air texturing machine in the skin-core form, feeding composite filaments formed by all the components of the polyester core filaments by a core filament roller, and keeping the over-feeding rate at 3-8%; feeding the composite filaments formed by all the components of the polyamide skin filaments by a skin filament roller, and keeping the over-feeding rate at 10-25%, and forming the skin-core structure; and using the yarn form or firstly performing weaving to perform differential shrinkage texturing processing on fabric, and then performing heat treatment for 0.5-5.0 minutes on a yarn or fabric heat treatment device at the temperature of 140-200 DEG C. By adopting the method, polyester is used as the core layer filaments of the textured yarn, thereby keeping the body of an imitation wool product; and polyamide is used as the skin layer filaments of the textured yarn, thereby improving flexibility, fluffiness and flexibility of the product, and enabling the product to have excellent hand feel and appearance.

Description

technical field [0001] The invention belongs to the field of textiles, and relates to a processing method of a different-shrinkage air-multiple textured yarn with polyester filaments as core filaments and nylon filaments as sheath filaments. technical background [0002] Using the principle of turbulent flow of compressed air in the nozzle, two groups of chemical fiber filaments with the same feeding rate form a parallel yarn structure or two groups of filaments with different feeding rates form a typical sheath-core structure (feeding The high speed is the cortex, the low is the core layer), and the manufacture of air textured yarn is a popular technology today (Wang Shanyuan. Textured yarn [M]. Shanghai: Shanghai Science and Technology Press, 1992). The processing method of utilizing polyester filament or nylon filament to prepare different shrinkage air multiple textured yarns has also been reported, and they are important raw materials for developing worsted wool-like fa...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects, the present invention provides a processing method of polyamide filament different shrinkage air multiple textured yarn, specifically a different shrinkage air multiple texture yarn with polyester filament as the core layer and nylon filament as the skin layer. The processing method of textured yarn solves the shortcomings of pure polyester or pure nylon textured yarn and meets the requirements of spinning high-grade worsted wool fabrics