The types of materials used for this type of button include transparent plastics for injection molding, such as transparent polystyrene, polycarbonate, acrylic resin (372.613 molded plastic, etc.), AS resin, etc. The main characteristics of this type of button are as follows:
1. Transparent polystyrene buttons have good transparency, cheap materials, easy injection molding, but are fragile and not resistant to high temperatures or solvents, so they can only produce low-grade buttons.
2. Polycarbonate buttons (PC) Polycarbonate is an engineering plastic that is not only transparent, but also has excellent mechanical properties, especially its good resilience and not easy to break. Therefore, it is often used for injection molding of rope buckles with springs. The disadvantage is high cost and poor injection performance.
3. Acrylic resin buttons are a type of plastic with the highest transparency and transparency. There are many types of resin that can be used for injection molding, with the main models in China including 372, 613, 504, etc., but the overall light transmittance is slightly poor. Due to the high transmittance and pure color of acrylic resin, in the button manufacturing industry, high-purity and high transparency buttons are mostly made of this type of material, which has the appearance of crystal glass. The buttons made can be used as fashion buttons alone or combined with other materials, and are currently quite popular in women's fashion.
The disadvantage of this type of button is its poor surface abrasion resistance, organic solvent resistance, and temperature resistance, making it unsuitable for use in high-end and durable clothing. 4. K resin button K resin is a styrene dibutylene copolymer. The characteristic is good transparency, good flexibility of the material, and easy injection molding. Buttons made of this resin often have a certain degree of elasticity and are often used to produce transparent and semi transparent rope buckles. Due to the limitations of material mechanical properties, the durability of the button is poor and the grade is low.
