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In the leather production process, the main function of the defoamer is to control and reduce the generation of foam. During the processing, the generation of foam will cause some problems, such as affecting production efficiency, quality and working environment. Therefore, adding a suitable defoamer is a necessary condition to solve these problems.

The use of defoamers in leather production can involve the following aspects:

1. Tanning process: In the tanning process of leather preparation, a large amount of chemical agents and stirring are often required, which may cause the generation of foam. The addition of defoamers can destroy the stability of foam, effectively reduce the formation of foam, and maintain the normal progress of the tanning process.

2. Dyeing process: In the dyeing process, the addition of dyes and auxiliaries and the stirring operation are also prone to generate foam. The use of defoamers can prevent the generation of foam, ensure that the dye is evenly dispersed on the leather surface, and improve the dyeing effect.

3. Spreading process: In the leather spreading process, spraying equipment and roller coating machinery often generate a lot of foam. The addition of defoamers can effectively control and reduce the generation of foam, ensure uniform coating, and improve the quality of coating.

The advantages of leather defoamers include:

1. High-efficiency defoaming: Defoamers can quickly destroy the foam surface film, causing the foam to collapse and aggregate, thereby accelerating the elimination of foam.

2. Long-lasting: Defoamers usually have a long-lasting defoaming effect, can provide long-term foam control, and make the production process more stable.

3. Low-toxicity and environmental protection: Modern leather defoamers usually adopt low-toxic and environmentally friendly formulas, which have little impact on the human body and the environment.