Home  > News
Basic understanding of textile wetting agents
Release time:2024-12-11 Page-views:9

Textile wetting agent is a widely used chemical in the textile dyeing and finishing process. It significantly improves the wetting performance of textiles by reducing the surface tension and contact angle of liquids on the textile surface.

Textile wetting agent is a type of surfactant, and its mechanism of action is mainly based on its ability to reduce surface tension. Under dynamic conditions, wetting agents rapidly adsorb onto the fiber surface, transforming the contact between the air fiber interface into a liquid fiber interface, making the fibers more easily wetted by the liquid.

The main function of textile wetting agents is to improve wetting performance. Wetting agents can promote the adsorption and diffusion of dyes and auxiliary agents on textiles, improve their permeability and absorption, and achieve better dyeing, printing, and finishing effects. Wetting agents can reduce the friction coefficient of textiles, increase the smoothness and efficiency of mechanical processing, improve process efficiency, and also have lubrication and anti-static effects. Adding an appropriate amount of wetting agent during the dyeing process can improve the diffusion and permeability of the dye, making the dyeing more uniform, deep, and bright.

Textile wetting agents are widely used in dyeing, printing, and finishing processes. For example, adding wetting agents before or during dyeing can significantly improve the diffusion and permeability of dyes, making the dyeing effect more ideal. In the printing process, wetting agents can accelerate the penetration of dyes and auxiliary agents inside textiles, improving the clarity and color saturation of printing.

There are various types of textile wetting agents, and different types of wetting agents have different application characteristics and effects in the textile dyeing and finishing process. Anionic wetting agents, such as fatty alcohol sulfates (such as sodium cinnamyl sulfate) and alkylbenzene sulfonates, have good wetting and permeability, and are widely used in textile dyeing and printing processes. Non ionic wetting agents, such as fatty alcohol polyoxyethylene ether, have good stability under hard water and alkaline conditions and are suitable for textile dyeing and finishing processes that require high water quality.

Different fibers have different requirements for wetting agents. For example, cotton fibers and synthetic fibers have different adsorption and diffusion abilities for wetting agents, so it is necessary to choose the appropriate wetting agent according to the fiber type. Different dyeing and finishing processes have different performance requirements for wetting agents. For example, in the printing process, it is necessary to choose wetting agents that can quickly penetrate; In the dyeing process, it is necessary to choose wetting agents that can improve the diffusion and penetration of dyes. However, with the increasing awareness of environmental protection, choosing low toxicity and easily biodegradable wetting agents has become a trend.

In practical applications, it is necessary to choose the appropriate wetting agent according to the specific situation. For example, in the dyeing process, for dark fabrics, anionic wetting agents with strong permeability can be selected; For light colored fabrics, non-ionic wetting agents with good wetting properties can be chosen. In the printing process, in order to achieve clear printing effects, wetting agents that can quickly penetrate and diffuse can be selected.

 

HOME PRODUCT NEWS CONTACT