Deepen the defoaming field, assist in efficient production, and provide one-stop foam solutions
Silicone defoamers eliminate foam issues in your production processes.
Release Date:
2021-12-07
When the papermaking process reaches the paper‑forming stage, workers start a machine and dilute the pulp with water. Once a certain concentration is achieved, the pulp undergoes partial dewatering on the wire section of the paper machine, forming a wet web. If severe foaming persists throughout the papermaking process, the quality of the finished paper will be poor, failing to meet the plant’s production standards. In such cases, an organic silicone defoamer can be added to eliminate the foam.
Regardless of whether your manufacturing facility produces book paper, coated paper, matte paper, gray cardboard, white cardboard, or other types of paper, you can consistently win the favor of distributors and consumers only when your product demonstrates excellent color‑development performance and exhibits sufficient paper strength.
Silicone defoamer
During the papermaking process, various mixing operations carried out by different enterprises introduce air into the pulp, forming numerous bubbles. These bubbles become entrapped within the fibrous structure and float on the surface of the pulp. If not removed promptly, they can lead to the following effects:
1. The accumulation of foam causes the slurry tank to overflow, resulting in significant waste of raw materials.
2. The bubble economy causes sand and impurities to deposit and settle in the pulp, resulting in fiber entrainment and the use of fine sand.
3. During paper drying, air bubbles rupture, ultimately forming pores in the sheet, which lead to paper breakage and poor paper quality.
The primary factors contributing to foaming in papermaking are the filter aids, retention aids, wet strength agents, and sizing agents present in the formulation. To address foam‑related economic issues caused by various food additives, it is essential to eliminate foam using silicone‑based defoamers. Silicone defoamers can remove air bubbles from pulp and prevent overflow, hole formation, and paper breakage.