Defoamers-Their Uses & Characteristics

Foam is a form of a dispersion of gas in the liquid. It is highly unstable and self-destructive in nature. There are many reasons why it is essential to eliminate foam in the textile processing industry. Industries face a lot of problems due to the formation of foam as it causes the fabrics to get entangled. This further results in patchy dyeing and defects in the machine. In order to get rid of this problem, industries need to combat foaming by using a good defoaming agent.

Characteristics Of A Defoamer

The basic characteristics of a defoamer are its insolubility and surface activeness. Because of being surface active, it spreads very easily into any water-air interface. When the defoamer spreads on the surface, the surface encounters a shock which causes destabilization of the foam. In a textile processing work, the foam is a very regular phenomenon. It occurs during the dyeing, bleaching and finishing processes. Since the conditions during the textile processing keep varying, one needs to choose the type of defoamer very wisely. Before choosing a defoamer, all the parameters such as pH, temperature, and the foaming media must be taken into consideration.

How To Choose A Right Defoamer

One needs to consider numerous factors before finalizing a defoamer for their industrial processes. Let us know the criteria on the basis of which choice of a defoamer varies.

• Homogeneity of the foaming system.

• The viscosity of the solution.

• Type of surfactant.

• pH of the solution.

Uses Of Defoamers

Defoamers For Paint

You want a paint for your house which provides you with an even coating. Defoamers help you in realizing this dream. A good defoamer eliminates the foam which forms during the paint application. A large variety of defoamers are available for both aqueous and non-aqueous coatings. You should choose the ideal defoamer according to the viscosity of the paint. There are many Defoamer Exporters who can provide you with a defoamer specific to the process of painting and coating.

Defoamers For Paper & Pulp

Defoamers play a pivotal role during the manufacturing process of paper and pulp. The defoamers chosen for the papermaking process should be high in alcohol concentration. This will speed up the process of foam elimination.

Defoamer For Latex & Emulsion

Emulsion and latex consist of a large amount of surfactant. This causes an easy formation of foam. In order to reduce foaming throughout the process, right from manufacturing to the end-product, a defoaming agent is essential. If you want to ensure a high-quality latex or emulsion, you need to verify the dispersion property of defoamer beforehand. With insufficient dispersion, the components will float on the surface of the latex degrading the quality of the end-product.

Apart from this, defoamers also play a crucial role in wastewater treatment and fermentation process. However, the choice of the defoamer might vary in various processes. Industries constantly face troubles due to the foam formation. From the tank overflow to the defective coating and scum formation, there are numerous disadvantages of foam. A suitable defoaming agent not only removes the foam but also saves a lot of the company’s cost. if you are also looking for a defoamer to improve the manufacturing processes in your industry, contact a good defoamer exporter and produce a better quality of the product.

Shah Patil & Company is a leading Defoamer maunfacturers in Mumbai, which exports various products like Phosphoric Acid Defoamers, Wetting Agents, Dispersing Agents, Thickener etc.