A processing technology of polyester double-layer four-way stretch fabric

Abstract

The invention discloses a processing technology for a polyester double-layer four-way elastic fabric, and relates to the technical field of fabric processing. The treatment process is based on the blank length of 2000m, including the following steps: Step 1, refining; Step 2, pre-shrinking: the refined blank is placed in a pre-shrinking solution for pre-shrinking treatment for 25-30min, and the pre-shrinking solution The temperature is 80-83°C; Step 3, pre-setting; Step 4, hanging wire; Step 5, weight reduction: reduce the pre-shaped blank in the alkali-water mixture; Step 6, dyeing, washing; Seventh, dehydration, opening width, softness, and setting to obtain polyester double-layer four-way stretch fabric. The invention can make the obtained polyester double-layer four-way stretch fabric have the advantages of soft hand feeling and moderate gram weight, and it is also beneficial to make it have good physical indicators such as good soaping fastness; more importantly, the invention is beneficial to saving Reduce energy consumption and reduce processing costs for polyester double-layer four-way stretch fabrics.

Description

technical field [0001] The invention relates to the technical field of fabric processing, more specifically, it relates to a process for treating a polyester double-layer four-way stretch fabric. Background technique [0002] Polyester double-layer four-way stretch fabrics are usually thicker than all-polyester four-way stretch fabrics, and the double-sided texture is better than all-polyester four-way stretch fabrics. [0003] The treatment process of the traditional all-polyester four-way stretch fabric includes refining-pre-drying-shrinking-dehydration-opening-presetting-reduction-dyeing-dehydration-opening-setting, and the specific operations are as follows: [0004] S1, Refining: Pass the billet successively through containers with a water capacity of 2T-2T-5T (adding 3kg refining degreaser ZFW)-5T-2T, and the temperature of the water in them is 50°C-75°C-95°C ℃-75℃-20℃, it takes 30 minutes for all blanks to be refined; [0005] S2, pre-baking: at a temperature of 120...

AI Technical Summary

Problems solved by technology

In the refining process, the number of stages passed is small, and although each stage has a relatively large water content, the temperature in each stage changes greatly. For all-polyester four-way stretch fabrics, it can better remove the fabric However, for the relatively thick polyester double-layer four-way stretch fabric, it is difficult for the remaining slurry and impurities in the fabric to be fully removed by 5 stages of water with large temperature changes.

And after the refining process, the operation of pre-drying and then pre-shrinking is adopted. The temperature used for pre-drying is as high as 120°C. Although to a certain extent, this step can make the polyester double-layer four-way stretch fabric have better luster degree and feel, but the cost of this step is relatively high, which is unfavorable to production enterprises

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