Paper defoamer: for a smoother papermaking process!
Foam is often a problem in the paper making process. Don't worry, RISE paper defoamer is here to help!
1. Why does the papermaking process blister?
Fiber raw materials of their own resin cause, and is used in the waste pulp adhesives are very easy to foam.
Foam is the main source of channels in the pulping time to the pulp pool to add a large number of chemical additives, such as filter aids, retention aids, wet strength agent, sizing agent, etc., these additives in the pulping and white water encapsulation cycle will produce air bubbles.
2. Effects of foam generation on paper
Bubbles can affect the appearance of the paper produced and reduce customer satisfaction.
Reduce the quality of paper, such as spots, uneven color, holes, etc..
Bubbles will produce cavitation, so that the operating performance of the sizing pump decreases, increasing energy consumption, easy to damage the equipment.
Sizing system is unstable, and even cause sizing pump tripping, shutdown, etc.
3. How to choose the right papermaking defoamer
From the perspective of defoamer product structure, high-quality paper defoamer should be composed of a variety of active ingredients, such as silicone, polyether and surfactants. These ingredients through the scientific ratio, synergistic effect, can be more effective in eliminating foam, and reduce the impact on paper quality.
In the choice of defoamer, the following points need to be considered: first, the paper defoamer needs to have excellent defoaming performance, can quickly and effectively eliminate the foam in the papermaking process. Secondly, the paper defoamer needs to have a high degree of compatibility, with the pulp and other additives well compatible. In addition, the paper defoamer also needs to have excellent chemical stability to cope with various acid and alkali environments in the papermaking process.
From the point of view of product advantages, paper defoamer has the following advantages: firstly, the defoamer can eliminate foam quickly and effectively, and improve the efficiency of paper production. Secondly, paper defoamer has high compatibility, can be compatible with the pulp and other additives, so as to have less impact on the quality of paper. Finally, paper defoamer has excellent chemical stability, can be stabilized in a variety of acid and alkali environment.
From the point of view of the use of scenarios, paper defoamer is suitable for various types of paper production process, such as cultural paper, packaging paper, household paper and so on. When adding paper defoamer, it is generally added directly to the pulp, but also can be added in the pulping process.
