Shaping, dyeing and yarn-fixing process for thin warp knitted fabric

Abstract

The invention discloses a shaping, dyeing and yarn-fixing process for a thin warp knitted fabric, which comprises the following steps: 1) utilizing an unreeling device to unreel the thin warp knitted fabric and utilizing a tensioning device capable of being heated to realize primary shaping and warp-directional tension control on a front unreeled section; 2) padding in a soaking tank, wherein a solution in the soaking tank is composed of deionized water, melamine resins, water-based dyes and penetrating agents; 3) under a condition of applying a certain force to both warp and weft directions,placing the fabric into an oven and then carrying out shaping, dyeing and yarn-fixing; 4) after pulling the fabric out of a high-temperature shaping device, placing the fabric into a cooling shaping device and then carrying out cooling shaping; and 5) reeling. On the basis of the development of a dyeing and yarn-fixing formula and the improvement of a manufacturing machine, the thin warp knitted fabric is subjected to the shaping, dyeing and yarn-fixing treatment under a certain pretension, net lines are free from displacing and net cloth is free from deforming during a whole processing process of the fabric, and a processed shape can be kept after the yarn-fixing treatment is carried out. A shaping, dyeing and yarn-fixing one-step forming process is formed.

Description

technical field [0001] The invention relates to the processing technology of thin warp knitted fabrics. Background technique [0002] In the prior art, the dyeing, sizing, and shaping of warp knitted fabrics are completed through separate processes, mainly aimed at fabrics that are tightly woven and will not cause displacement or deformation. The warp and weft directions of sparse warp knitted fabrics are The weaving of binding silk is relatively fixed, and there is a large mesh between the warp and weft threads. If the original traditional processing technology is still used, the fabric will be seriously deformed and cannot be used. For processing, generally another material is bonded to make the warp and weft of the fabric relatively fixed, but some products cannot be processed in this way, and the finished product sometimes needs to retain the original mesh to reduce wind resistance and reduce the temperature through ventilation , improve aging resistance, or not increas...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the dyeing, sizing, and shaping of warp knitted fabrics are completed through separate processes, mainly aimed at fabrics that are tightly woven and will not be displaced or deformed. The warp and weft directions of warp knitted fabrics are The weaving of binding silk is relatively fixed, and there is a large mesh between the warp and weft threads. If the original traditional processing technology is still used, the fabric will be seriously deformed and cannot be used. For processing, generally another material is bonded to make the warp and weft of the fabric relatively fixed, but some products cannot be processed in this way, and the finished product sometimes needs to retain the original mesh to reduce wind resistance and reduce the temperature through ventilation , improve aging resistance, or not increase the weight too much. In addition, the polyester filament used for warp knitting has a single color, and some products actually used need to have color requirements, so it is required to adjust the color

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