Rosin, Alias: pine, larch gum incense, white rosin, pine gum, gum rosin. Rosin flammable, rich in turpentine pine as raw material, non-volatile natural resin through different processing methods obtained called rosin. Depending on the refined way, can be divided into gum rosin, wood rosin (rosin leaching) and three tall oil rosin acids, rosin is a pale yellow to reddish brown, transparent, and thermoplastic vitreous material. Rosin is a kind of mixture of ingredients, the ingredients vary slightly different varieties of pine, rosin mainly composed of resin acids, while a small amount of fatty acids and neutral substances. According to the analysis, in general, rosin, resin acid content of about 85.6 - 88.7%, the fatty acid content of about 2.5 to 5.4%, the content of neutral material about 5.2 to 7.6%. Rosin Uses: 1, soap industry: Rosin sticky, you can make soap is not prone to cracking and rancidity deterioration. Rosin and caustic soda or cooking together, may form a rosin soap. Rosin soap decontamination strong, soluble in water, can dissolve fat, easy to lather. 2, the paper industry: Rosin on the paper industry as papermaking compound. Rosin and rosin sodium soap made caustic soda, namely rubber, plastic material mixed with the pulp and add alum, rosin becomes stuck in a small water-insoluble fiber free resin acid particles, when heated in a dried pulp rolling cylinder When rosin softening filled between the fibers, this effect is called the "glue" or "glue." After the paper "glue" can be enhanced water resistance, to prevent ink penetration, improve the strength and smoothness, reduce the degree of stretching. 3, paint industry: Rosin soluble in various organic solvents, and easy filming, shiny, is one of the basic raw material of paint. The role of rosin in the paint is to paint bright color, fast drying, easy to fall off the film smooth. 4, the ink industry: Rosin is mainly used in the printing ink vehicle body and enhance the adhesion of the ink to the paper. If the ink is not rosin, will be printed in ink tone dull, blurred. 5, the adhesive industry: rosin ester and hydrogenated rosin ester as a binder base material, commonly used as a hot melt adhesive, pressure-sensitive adhesives and rubber tackifier. 6, rubber industry: Rosin is used as a softening agent in the rubber industry, increase its flexibility. 7. Food industry: hydrogenated rosin esters and natural chicle, wax, vinyl acetate and other heating and melting together, then add spices, sugar and mix thoroughly pigments can be made into chewing gum. Slaughtered pigs in the slaughterhouse, cattle, sheep, when, after using hair removal machine operation, left in the animal body and head hair can be used from 88% to 94% of molten rosin and 6-12% consisting of cottonseed oil depilatories to remove. 8, the electrical industry: Rosin 35% and 65% light oil formulated as insulating oil in the cable as a protective film, from the insulation and heat effect. Rosin and Bakelite and other synthetic resin is mixed as an insulating varnish. 9, building materials industry: Rosin is mainly used in the building materials industry for concrete frother and floor tile adhesive. Rosin also used vinyl asbestos tile adhesive. Rosin and linseed oil, calcium carbonate, charcoal, pigments, etc. can be mixed together to manufacture carpet tiles.