The main functions of paper defoamer

The paper industry is an important basic industry, and its products are widely used in packaging, health, culture and other fields. However, in the papermaking process, the generation of foam often brings about a series of problems, such as affecting paper quality and reducing production efficiency. In order to solve this problem, paper defoamer came into being and became a powerful tool to improve the quality of papermaking technology.

• Problems with foam in the papermaking process

1.Affect paper quality: The existence of foam will cause uneven paper surface, reduced gloss, and even paper breakage, affecting the quality and appearance of paper.

2. Reduce production efficiency: Foam will adhere to the surface of the equipment, causing equipment to be blocked and unstable in operation. This not only increases the cost of equipment maintenance, but also reduces production efficiency.

• The working principle of paper defoamer

1. Destroy the foam structure: Paper defoamer can quickly interact with the foam surface, change its surface tension, destroy the foam structure, and cause it to dissipate quickly.

2. Inhibit foam formation: Paper defoamer can chemically react with resins, grease and other substances in the pulp to inhibit their ability to form foam.

3. Improve paper quality: By reducing the presence of foam, paper defoamer can improve key indicators such as flatness, gloss and strength of paper, and improve paper quality.

• Application of paper defoamer in papermaking technology

1. Coating process: In the coating process, the surface of the paper needs to be coated with a layer of paint to increase gloss and smoothness. However, a large amount of foam is often generated during the coating process. Adding an appropriate amount of paper defoamer can effectively destroy foam and improve the coating effect.

2. Pulp treatment: Resins, grease and other substances in pulp can easily form foam and affect paper quality. During the pulp processing process, adding an appropriate amount of paper defoamer can inhibit the formation of foam and improve the quality of paper.

To sum up, paper defoamer is a powerful tool to improve the quality of papermaking process. It improves paper quality and production efficiency by destroying and inhibiting the formation of foam. With the continuous advancement of technology and the increasing demand, paper defoamer will usher in a broader space for development and make greater contributions to the sustainable development of the papermaking industry.