Method for fabricating soft knitting face fabric from cotton

Abstract

The present invention discloses a processing method of flexible cotton knitted face fabric. Said processing method includes the following several steps: weaving, enzymatic washing, kiering and bleaching, dyeing, oversoftening, dewatering, opening, drying, sizing and pre-shrinking.

Description

technical field [0001] The invention relates to a processing method of cotton knitted fabric, in particular to a processing method of soft cotton knitted fabric. Background technique [0002] Pure cotton knitted fabrics have always been loved by consumers due to their advantages of comfortable wearing, good air permeability, and natural environmental protection, and have become one of the most popular and popular clothing fabrics on the market. In order to meet the market's demand for high-grade pure cotton fabrics, domestic and foreign manufacturers have conducted a lot of research on the high-grade processing of pure cotton knitted fabrics, improving the quality of fabrics from the aspects of fabric feel, luster, stability, and functionality. The improvement methods for the handle of cotton knitted fabrics can be mainly classified into the following categories: the softness of the fabric is improved by using specially spun yarns, especially low-twist cotton yarns; special ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the processing methods are to increase the amount of softening oil or select special softeners to improve the fabric feel in the oversoftening and setting steps after dyeing, and to improve the appearance quality of fabrics through bio-polishing processes, that is, through biological enzyme washing and softening. The method of combining processing is used for soft finishing of pure cotton knitted fabrics. The process flow is: weaving→biological enzyme washing→boiling and bleaching→dyeing→oversoftening→dehydration→opening→drying→setting→preshrinking; After finishing with enzyme, it will cause the hydrolysis of the fiber end molecules, weaken the stress between the fiber molecules and cause the loss of strength, and the surface hairiness will fall off under the action of mechanical friction, making the surface of the fabric smooth, and the handle, drapability and surface finish are improved. However, after cellulase treatment, the crystallinity and polymerization degree of the fabric decreased with the reduction of the fabric fiber molecules, the stress between the fiber macromolecules weakened, the strength of the fabric was damaged to a certain extent, and the dimensional stability of the fabric It is also affected to a certain extent; in addition, in the subsequent process, after the fabric has undergone a long period of mechanical stretching and friction in the cylinder, it is more difficult to ensure dimensional stability, especially when processing some dark-colored products. The extension of dyeing and soaping time also increases the hairiness of the cloth surface

If the process of enzyme washing after dyeing is used, the dye will reduce the activity of the enzyme, so that the dark fabric cannot get a good hair removal effect

If the resin setting process is added, although a certain dimensional stability and recovery can be achieved, it will cause a loss in strength and a greater impact on the hand feel, and it will cause formaldehyde to form.