1. Paper Industry Rosin with caustic soda Saponification, made of rubber, and vitriol bauxite, into the pulp, so that writing paper through ink, and easy to print. 2. The ink industry can be used as an ink carrier with good compatibility. 3. Paint Industry Rosin made of calcium salt, sodium salt and so on make paint luster, dry fast, increase paint film hardness and water resistance. 4. Soap Industrial Rosin with caustic soda Saponification, the formation of Rosin soap, with a greater decontamination, soluble in water, good foam, can dissolve grease, made soap. 5. Food Industry as a food additive, used in the production of chewing gum, can also be used in the preparation of beverages. The dehairing agent composed of Rosin and cottonseed oil can also be used in meat processing. 6. In medicine and pesticide industry, Rosin plays the role of softening, adhesion, moisture-proof and anticorrosion in medical adhesive plaster and insulating paste. Rosin can be made into fungicide. Can also play an emulsifying role in insecticide, made into insecticide emulsion. Kill. In the flux of electronic industry, Rosin can remove the oxide film on the Metal Surface, which is helpful to the development of flux. 8. Other Rosin can make raw rubber soft chemicalbookized, improve elasticity, increase viscosity, improve its tear strength. Can Be prepared into insulating oil, used for cable protection film, can also be used for battery sealing primer, etc. . In the printing and dyeing Formula Rosin plays the role of adhesion, in Silk, waterproof card which add rosin can play a waterproof, heat resistant role. The impregnating agent composed of Rosin, wax, butyl hydroxytoluene, oleic acid and water can make the permeable building material have hydrophobicity. Rosin is used as foaming agent in cement. As a sealing material, it can be used in shipbuilding. Rosin can be used in the formulation of metal polishing agent, also can be used as base material of metal cutting fluid. Rosin is also used in military production as a detonator, grenade fuse, and match initiator. Rosin as a natural raw material, there are still some disadvantages, such as easy oxidation, low softening point, easy crystallization and so on. In order to improve the application effect and expand the application range, it is necessary to use the chemical properties of Rosin for modification. At the same time, the use of the department for their own development, the Rosin also put forward higher requirements. Therefore, through the chemical modification of Rosin, man-made to give it a variety of excellent performance, made a series of deep-processing products.