Semi-low temperature pretreatment technology of T/C fabric

Abstract

The invention belongs to the field of textile printing and dyeing, and particularly relates to a semi-low temperature pretreatment technology of a T / C fabric. The technology includes the steps of fabric feeding, preparing of a padding, desizing and scouring working fluid, steaming, washing with water, preparing of a padding and bleaching working fluid, steaming, washing with water and drying. Theessence of the semi-low temperature pretreatment technology is to reinforce the functions of auxiliaries and concentration while weaken the function of temperature. A refining agent is more resistantto alkali at low temperature, and can wet the fabric more quickly and more continuously, so that the fabric has absorbency. In the later bleaching procedure, the fabric with the capillary effect can be better refined and subjected to impurity removal, bleaching and the like under the strong action of high-temperature H2O2.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing processing, in particular to a semi-low temperature pretreatment process for T / C fabrics. Background technique [0002] At present, the traditional alkali-oxygen two-bath two-step process is mostly used in the pre-dyeing treatment of T / C blended woven fabrics, which has high steam consumption, low production efficiency and inconvenient operation. In recent years, many printing and dyeing workers have been studying the one-step process of low-temperature hydrogen peroxide pretreatment, and have made progress in knitted fabrics, but they have seldom practiced in the continuous production of woven fabrics. The reason is that the yarn of the woven fabric itself It is tight and difficult to penetrate, and contains heavy pulp, especially the PVA chemical pulp on T / C fabrics is difficult to remove. However, with the continuous increase of energy costs in printing and dyeing processing, energy-...

AI Technical Summary

Problems solved by technology

[0002] At present, the pretreatment of T / C blended woven fabrics mostly follows the traditional alkali-oxygen two-bath two-step process, which has high steam consumption, low production efficiency and inconvenient operation.

In recent years, many printing and dyeing workers have been studying the one-step process of low-temperature hydrogen peroxide pretreatment, and have made progress in knitted fabrics, but they have seldom practiced in the continuous production of woven fabrics. The reason is that the yarn of the woven fabric itself Tight and difficult to penetrate, and heavy pulp, especially the PVA chemical pulp on T / C fabrics is difficult to remove

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