Non-ironing post-finishing technique for cotton fabric

Abstract

The invention relates to a fabric finishing process, in particular to a non-ironing finishing process of a woven cotton fabric. The non-ironing post-finishing process includes the steps of fabric preparation, resin padding, tenter drying, baking, pre-shrinking, and rolling, wherein the fabric preparation includes gray fabric seaming, singeing, desizing, alkali mercerizing, dyeing, and drawing. The steps of web setting and liquid ammonia finishing, wherein, the step of resin padding includes two resin padding steps, and also includes a ventilation step after resin padding and before tenter drying. Due to the adoption of the above-mentioned technical solution, the contradiction between the anti-wrinkle performance of cotton fabric and the strength and wear resistance of the fabric is completely resolved, so that the hand feeling, air permeability and hygroscopicity of cotton fabric continue to maintain the characteristics of cotton fabric, and the anti-wrinkle performance is greatly improved. Improvement, formaldehyde residues are greatly reduced, and energy consumption and sewage discharge can also be reduced.

Description

Technical field [0001] The invention relates to a finishing process of fabrics, in particular to a non-iron finishing process of woven cotton fabrics. Background technique [0002] For a long time, pure cotton fabrics have been welcomed by consumers because of their good air permeability, strong moisture absorption, soft hand feeling and comfortable wearing. However, clothing made of pure cotton fabric is easy to wrinkle and not stiff during wearing and washing, and clothing made of pure cotton fabric that is easy to wrinkle affects people's appearance. Obviously, the natural wrinkle-prone nature of pure cotton fabric significantly affects the breadth of use of the fabric. [0003] There are two process routes for the non-iron finishing of pure cotton fabrics: one is the pre-baking method, that is, the fabric open-width padding resin, open-width baking and other processes are completed by the printing and dyeing factory. This is the traditional process route, and its shortcomings...

AI Technical Summary

Problems solved by technology

[0003] There are two kinds of process routes for non-ironing finishing of pure cotton fabrics: one is the pre-baking method, that is, the fabric is open-width dipped with resin, and all processes such as open-width baking are completed by the printing and dyeing factory. This is a traditional process route. The advantage is that it brings certain difficulties to garment processing, and it is difficult to give some folds and garment shapes to garments, so it is only suitable for finishing and processing of cloth; There are different ways to roll resin, and it can be divided into gray cloth padding and clothing impregnation.

[0005] 1. The strength and wear resistance of fabrics treated with non-ironing finishing process are reduced, and the clothes made of them are more easily damaged than those made of fabrics that have not been treated with non-ironing finishing process;

[0006] 2. High formaldehyde residues in fabrics treated by non-ironing finishing process

[0007] CN 1189617C discloses a "non-ironing finishing method for pure cotton fabric". The process includes fabric preparation, pre-softening, moisture cross-linking additives, storage reaction, washing, tentering, calendering, pre-shrinking, and inspection. The disadvantage of the process is that the process is long and must go through the washing step, which requires a lot of water and consumes a lot of water resources, and the discharge of sewage is not conducive to the protection of the environment.

And, the formaldehyde content of the pure cotton fabric that obtains through this non-ironing finishing method is higher, just reaches international environmental protection standard 75ppm