Moisture-absorbing and quick-drying finishing method for cotton knitted fabric

Abstract

The invention provides a moisture-absorbing and quick-drying finishing method for a cotton knitted fabric, and relates to the technical field of textile processes. The method comprises the following steps: pretreating a fabric, padding the pretreated fabric by using a moisture-absorbing and quick-drying finishing agent, drying the padded fabric, rolling the dried fabric, enabling water-repellent microcapsules in the moisture-absorbing and quick-drying finishing agent to be broken and a water repellent to enter the fabric, and baking at high temperature to obtain the moisture-absorbing and quick-drying fabric. Countless micro water-repellent points are formed on the surface and inside of the fabric, spreading of water on the surface of the fabric is facilitated, permeation of the water into fibers is reduced, the water can be rapidly spread on the surface of the fabric, and therefore the evaporation rate of the cotton fabric is increased, and the good moisture-absorbing and quick-drying finishing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of textile technology, in particular to a moisture-absorbing and quick-drying finishing method for cotton knitted fabrics. Background technique [0002] The moisture absorption and quick-drying finishing of textiles is generally aimed at chemical fiber fabrics such as polyester and nylon, and the finishing effect is relatively ideal, while the molecular chain of cotton fabric fibers contains a large number of hydrophilic hydroxyl groups, resulting in good hygroscopicity of cotton fabric fibers, and moisture is easily absorbed. It penetrates into the inside of the fiber, so it is difficult to make it reach the quick-drying standard by using the existing technical means to carry out moisture-absorbing and quick-drying finishing on cotton fabrics. [0003] Because of the strong hydrophilicity of cotton fiber, the fabric woven from it has good hydrophilicity. As long as the pre-treatment process is appropriate, ...

AI Technical Summary

Problems solved by technology

[0002] The moisture absorption and quick-drying finishing of textiles is generally aimed at chemical fiber fabrics such as polyester and nylon, and the finishing effect is relatively ideal, while the molecular chain of cotton fabric fibers contains a large number of hydrophilic hydroxyl groups, resulting in good hygroscopicity of cotton fabric fibers, and moisture is easily absorbed. It penetrates into the inside of the fiber, so it is difficult to make it meet the quick-drying standard by using the existing technical means to perform moisture absorption and quick-drying finishing on cotton fabrics

[0003] Because of the strong hydrophilicity of cotton fiber, the fabric woven from it has good hydrophilicity. As long as the pretreatment process is proper, its wettability is generally good, but it is difficult to meet the current national standard for quick drying.

In the prior art, some studies have carried out water-repellent modification of cotton fibers in the bulk fiber stage, and then blended with conventional cotton fibers in a certain proportion to weave cotton yarns with quick-drying effects and then weave fabrics, which can meet the quick-drying requirements. However, the obtained water-repellent yarn cannot be dyed again. It can only be dyed in the bulk fiber stage before water-repellent modification. After a series of processes such as weaving, dyeing, finishing, degreasing, and setting, the probability of color difference with conventional dyed yarn is greatly increased. hard to control

There are also studies referring to the moisture-absorbing and quick-drying finishing process of polyester and other chemical fiber fabrics, adding a moisture-absorbing and quick-drying finishing agent in the finishing process of cotton fabrics, but the finishing effect is not obvious, and the evaporation rate is close to that of untreated cotton fabrics.