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Application of Defoaming Agent in Textile Printing and Dyeing

Application of Defoaming Agent in Textile Printing and Dyeing

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During the processing of textiles, various dyes and printing, and dyeing auxiliaries are exposed. These auxiliaries, including surfactants such as detergents, penetrants, emulsifiers, and leveling agents, tend to generate foam after mechanical vibration. The foam is the dispersion of air in the liquid. These foams will reduce the contact surface between the fabric and the liquid during the printing and dyeing process of the textile, resulting in uneven processing, which seriously affects the quality of the textile.


After adding a defoaming agent to the printing and dyeing auxiliaries solution, the defoaming agent can become a solution, an emulsion, or a dispersion, which is adsorbed on the surface of the foam. The defoamer chemical will attract the good foaming substances of the surfactant so that the surface viscosity of the foam liquid film will be reduced, thinned, and broken.


Below we will introduce the application of defoaming agent in textile printing and dyeing:


1. Defoaming agent for textile pretreatment:


In fabric desizing, scouring, bleaching and washing, adding defoaming agent is to improve the pretreatment effect. Therefore, the permeability of the defoaming agent should be good, and it should be able to withstand high temperature, so that it can be dispersed evenly, so that the desizing agent, the bleaching agent and the cleaning agent can penetrate into the fabric evenly.


2. Defoaming agent for textile dyeing:


There is foam in the liquid of dyeing slurry. If the defoaming agent is not used in time, color spots, color spots and uneven color will be formed on the fabric, which will seriously affect the product quality.


Therefore, it is necessary to add this dyeing defoaming agent when using various dyes for rope, jig, beam and socks dyeing. This product is not only high temperature resistant, but also beautiful.


3. Defoaming agent for textile printing:


Avoid the presence of foam during textile printing. Otherwise, it is easy to have white spots, spots, or fabric pattern, uneven color, blur, etc., so adding printing defoaming agent can ensure the quality of the product.


Defoaming agents also cannot affect the viscosity and color appearance of the slurry, etc. In this way, its self-emulsifying property is strong, and it can disperse quickly, and the low and high viscosity systems can maintain the anti-foaming effect for a long time.


The main products of HT are formaldehyde-free color-fixing agent, acid color-fixing agent, multi-refining enzyme, chelating agent (CT powder), heat sublimation fastness improver, wet rubbing fastness improver, soaping agent, icy silicone softener agent, ternary silicone softener, bright lubricant, softener, etc. If you have any needs, please feel free to consult us.

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