The types of materials for these types of buttons include injection-molded transparent plastics such as transparent polystyrene, polycarbonate, acrylic resin (372.613 molding plastics, etc.), AS resins, etc. The main features of these buttons are as follows: 1. Transparent Polystyrene Button This button has good transparency, cheap material, easy injection, but it is fragile, and it is not high temperature resistant and solvent resistant, so it can only produce low grade buttons. & jbsp; 2. Polycarbonate button (PC) Polycarbonate is an engineering plastic, not only transparent, but also excellent mechanical properties of the material, in particular its good resilience, and not easily broken, so it is mostly used for injection molding with spring rope buckle. The disadvantages are the high cost and poor injection molding performance. 3. Acrylic resin button This is a kind of plastic with the highest light transmittance and the best transparency. There are many types of resin that can be used for injection molding. The main models in China are 372, 613, and 504, but the overall light transmittance is slightly poor. Due to the high light transmittance and pure color of acrylic resin, most of these materials are used in button manufacturing to manufacture high-purity, high-transparency buttons whose appearance is similar to that of crystal glass. Buttons made of them or used alone Fashion buttons, or combined buttons with other materials, are popular in women's fashion. The disadvantage of this type of button is that the scratch resistance, organic solvent resistance and temperature resistance of the surface are not good, and it is not suitable for high-grade and durable clothing. 4.K resin button K resin is a styrene-dibutylene copolymer. It is characterized by good transparency, good material flexibility and easy injection molding. Buttons made of this resin often have a certain degree of elasticity, and are mostly used for the production of transparent, translucent rope fasteners. Because the resin is limited by the mechanical properties of the material, the durability of the buttons is not good and the grade is low.
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