Two color injection molding: refers to the molding method of injecting two kinds of plastics with different colors into the same mold. It can make plastics appear two different colors, and can make plastics present regular patterns or irregular moire patterns, so as to improve the usability and aesthetics of plastics.
Characteristics:
1. The core material can use low viscosity materials to reduce the injection pressure.
2. In consideration of environmental protection, recycled secondary materials can be used as core materials.
3. According to different use characteristics, for example, soft materials are used for thick finished products, hard materials are used for core materials, or foamed plastics can be used for core materials to reduce weight.
4. Lower quality core materials can be used to reduce costs.
5. Leather or core materials can be used with expensive and special surface properties, such as anti electromagnetic interference, high conductivity and other materials to increase product performance.
6. Proper matching of the skin and core materials can reduce residual stress of the molded products, increase mechanical strength or surface properties of the products.