Thermoplastic elastomer TPR material has both the processing properties of thermoplastics and the physical properties of vulcanized rubber, which can be described as an advantageous combination of the advantages of plastic and rubber. TPR is taking the territory that used to belong only to vulcanized rubber. In the past ten years, TPR has been widely used in various fields: various doll toys, eraser dolls, bags and rubber, daily necessities, sealing strips and tension tubes and other products. Its main advantages are mainly reflected in the following performance.

1. Environmental performance Although most of the environmental protection characteristics of TPR materials meet the ROHS and EN71-3 test standards, there are still differences in the test standards for toy products in different countries or regions. Some require no PAHs polycyclic aromatic hydrocarbons, no NP (nonylphenol), and some require no SVHC substances of high concern stipulated by REACH. The environmental protection requirements above TPR can be passed.

2. Excellent color matching and oil injection screen printing performance Most of the toy products are bright in color, and have high requirements for the colorability of TPR grid materials. A good TPR has good toner dispersion and coloring performance (manufacturers should choose elastomer soft glue toner). Make colors realistic. In the process of painting and screen printing, TPR also has excellent adhesion, so that the paint does not fall off. Of course, the matching of TPR compound and ink paint is very important, and the appropriate paint and ink should be selected according to the characteristics of TPR.

3. Excellent elastic properties and precautions TPR material has good flexibility, high resilience, smooth and bright surface, and is not easy to crack. The specific product requirements can be reported to the TPR material manufacturer, and the manufacturer can adjust the formula to achieve the desired effect. For products with hardness below 20A, it is not recommended to use TPR materials, and products with low hardness are prone to cracking. It is recommended to choose TPE series products, the hardness of TPE series can be below zero. Due to the demand of the market, the popular eraser dolls on the market can also be injection-molded with low-end TPR materials. This type of eraser doll has both the aesthetics of the doll and the ability to rub, so high-elasticity TPR cannot be used when selecting materials. This kind of material is generally on the premise of ensuring the easy shape of the material. maintains its rubbing ability. Guofeng Plastic Industry has developed a special series of eraser dolls after years of great improvement of products, which are extremely cost-effective.

4. Good molding and processing performance TPR material has moderate fluidity, convenient molding and processing, and the injection temperature is 170~190 ℃, and it is not easy to appear problems such as shrinkage and burrs.