The original name of shellac lacquer film or purple film is obtained by hot melt or solvent dissolution of insect collagen glue. The color depth of the shellac lacquer pieces produced according to different requirements is also different. Shellac lacquer is a kind of biological product. It is used in furniture and home interior paint. It has no pollutants, no irritating odor and no toxicity. It is a high-grade coating for skin without allergies. It avoids the hidden danger of formaldehyde in common coatings. Covered with ordinary paints and coatings, it can prevent the leakage of formaldehyde gas and cause harm to the human body, and avoid direct contact of toxic substances with human skin.
Shellac paint characteristics
The components of shellac lacquer tablets are shellac resin, shellac pigment, shellac wax, sugar, protein, etc., wherein the content of shellac resin is 90-94%, and shellac resin is a kind of hydroxycarboxylic acid fatty acid and An elastic network composed of sesquiterpene acid, the void also contains a mixture of low molecular fatty acids, the structure is very complicated, and can be represented by the molecular formula C60H90O5.
Application of shellac paint
Since the main component of shellac paint is shellac resin, it has strong adhesion to smooth surfaces such as glass, metal, mica, etc., and its alcohol solution or alkali solution adheres well to various object surfaces. And form a smooth, bright and durable paint film, and its non-toxic, so it can be widely used in food, medicine, military, electrical, ink, leather, metallurgy, machinery, wood, rubber and other industries.
The wood industry industry shellac paint is simple, easy to use, strong adhesion, fast drying, smooth film, hard, transparent, elastic, uniform gloss, and good for wood secretions, stupid amine colorants and asphalt. Isolation or closure, etc. It has been used extensively in the wood industry for a long time. Especially in recent years, due to the toxicity of formaldehyde coating agents to the human body. Many high-grade woodware and decoration have turned to shellac paint.
Food Industry It is used for fresh-keeping film of fruit, which can form a bright film, prolong the shelf life of fruit and increase its commodity value. Used in confectionery and pastry coatings to increase brightness, prevent moisture regain, and smear the inner walls of metal cans to prevent food from coming into contact with metal.
Leather Industry Bright and protective finishes, characterized by fast drying, strong filling, and strong adhesion to leather, making it softer and more elastic. And presents a gorgeous luster.
The military industry is mainly used as a retarder for finishing agents, insulating materials and gunpowder drugs. It is also used to manufacture military equipment that is UV- and radiation-proof.
Electrical industry Manufacturing of insulating paperboard, laminated mica boards, ground electrical insulators, insulating varnishes, bulbs, fluorescent lamps and soldering irons for tubes.
The rubber industry is mainly used as a surface coating or filler for rubber products. It can improve the beauty of rubber products and improve their wear resistance, oil resistance, acid resistance, water resistance and insulation. Slow down the aging process, extend the lifespan, and improve the physical, mechanical, and mechanical properties of rubber, such as strength, tensile strength, and tear resistance.
The paper industry manufactures insulating paper and industrial wrapping paper. It is also used as a decorative and protective finishing agent for coated paper, food packaging paper, and lamp cover paper.
Other aspects of medical equipment, matches, toothpicks, barrels, caps, mirrors, sporting goods, sculpture, jewelry processing adhesives.