Knowledge of papermaking raw materials-Jinling Paper Machine

　　In addition to professional skills and knowledge in the paper industry, you also need to understand other basic knowledge of papermaking. Understanding these will improve your professional knowledge. The following China Paper Machinery Network and everyone will summarize.

　　1. What are the types and functions of papermaking accessories?

　　Papermaking auxiliary materials are composed of fillers, rubber materials, pigments and other chemical additives. They can improve the quality of paper and special materials. For example, rubber can enhance the waterproof performance of paper, and pigments and dyes can improve the color of paper. Special auxiliary materials can achieve special effects.

　　2. Which raw materials can be used for papermaking?

　　The main raw materials for papermaking are plant fibers or domestic waste, such as asbestos, glass wool, nylon and polymer materials, but plant fibers are still the preferred material for the paper industry. Plant fibers are mainly divided into two types: non-plant fibers obtained from trees and non-plant fibers.

　　3. How are papermaking pigments composed?

　　Colorants are pigments and dyes used for paper dyeing and toning. Most of the pigments are inorganic, and most of them are insoluble in water. Dyes are divided into natural dyes and synthetic dyes. At present, synthetic dyes have completely replaced natural dyes. Most of the dyes are soluble in water or soluble in water after chemical treatment.