New nylon woven fabric woven fabric dyeing and finishing technology

Abstract

The invention relates to a new nylon woven fabric woven fabric dyeing and finishing technology, especially relates to a new nylon woven fabric woven fabric desizing and dyeing one-bath technology, and relates to the field of textile dyeing and finishing. The technology comprises the following steps: putting a dye and a woven fabric grey cloth in a water bath at room temperature, and adding an anionic desizing agent accounting for 1-4% of the weight of the woven fabric grey cloth, a yarn split resistance agent accounting for 1-2% of the weight of the woven fabric grey cloth and a cationic / nonionic surfactant accounting for 1-3% of the weight of the woven fabric grey cloth into the water bath; heating the water bath to 85DEG C, maintaining the temperature for 10min, and adding acetate acid gracial accounting for 0.2-0.5% of the weight of the woven fabric grey cloth; and heating the water bath heating to 105DEG C, maintaining the temperature for 40min, and cooling the water bath to 80DEG C in order to complete the desizing and dyeing one-bath technology. Compared with present desizing and dyeing two-bath technologies, the technology provided by the invention has the advantages of reduction of about 50% of the water consumption and the sewage discharge capacity per 10000yds of cloth, saving of about 50% of the sewage discharge cost per 10000yds of cloth, shortening of about 40-50% of the dyeing process flow time per cylinder of cloth, increase of about 80-90% of the output under same equipment, saving of about 30-40% of coal per 10000yds of cloth, saving of about 40-50% of the power consumption per 10000yds of cloth, and reduction of about 200yuan of the labor force cost per 10000yds of cloth.

Description

technical field [0001] The invention relates to a new process for dyeing and finishing nylon woven fabrics, in particular to a new process for destaining nylon woven fabrics in one bath. It belongs to the field of textile dyeing and finishing. Background technique [0002] The traditional dyeing and finishing method of woven fabrics is a two-bath method of desizing and dyeing. The principle and purpose of desizing woven fabrics: the yarns used in the weaving process of woven fabrics, in the process of spinning fibers into yarns, due to the basic principles of spinning and the limitations of various existing spinning methods, There must be a lot of hairiness on the evenness, which is an important cause of warp yarn breakage during weaving. At the same time, due to the smooth surface structure of commonly used textile fibers, the surfaces of these fibers in the yarn rely on the lateral pressure generated during twisting. This cohesion force is also relatively weak, which is ...

AI Technical Summary

Problems solved by technology

The broken ends of warp yarns often cause weaving difficulties. In order to prevent this phenomenon and increase the weaving speed, the warp yarns of woven fabrics generally must go through the process of sizing during the weaving process, that is, the warp yarns are immersed in the sizing agent to make the surface of the yarn adhere to a certain amount. In addition, in order to increase the lubrication of the fabric and reduce friction, which is beneficial to weaving, sometimes some oils are added to the fabric, and the sizing and oil stains and other impurities in the woven fabrics of different varieties and fibers are all different. Different, in short, compared with the gray cloth after desizing, the gray cloth without desizing has the following problems: the gray cloth feels particularly stiff; the gray cloth is seriously dirty; the gray cloth surface is rough, not meticulous, not Flat; the cloth surface is twisted and not plump; direct dyeing will seriously affect the dyeing quality, such as causing uneven coloring such as color flowers, color stains, color spots, color spots, stripes, light color, etc.

The existence of slurry can easily cause the following problems in the printing and dyeing process: consumption of dyeing materials; contamination of working fluid; obstruction of contact between dyeing materials and fibers on the surface of the fabric, resulting in dye rejection during dyeing, resulting in various quality problems

[0005] This two-bath method of desizing and dyeing has the following disadvantages: First, there are many dyeing and finishing steps, and the time required for dyeing and finishing is long, resulting in high labor costs and low production efficiency; Large electricity consumption and large coal consumption lead to high water, sewage, electricity and coal costs, and high overall energy consumption

And acid dyes dye nylon fabrics, up to now, there is no process example of dyeing under alkaline conditions in China.