Beautiful appearance and exquisite design are the goals pursued by the designers. In the cup design process, the designer uses different materials for different purposes in different parts of the cup to meet the needs of the specific environment and to prolong the life of the product. , To increase the aesthetic and practical purposes. The two-color injection molding process is an essential technology to achieve this effect. Its application reflects the ingenuity of the product process, but also reflects the designer's pursuit of beauty.
What is a two-color injection molding
The so-called two-color injection molding refers to the molding method of injecting two different color plastics into the same mold. It can make the plastic parts appear in two different colors, and can make the plastic parts show regular patterns or irregular moiré shapes. Color to improve the practicality and aesthetics of plastic parts.
Two-color injection molding considerations
1. There is a certain temperature difference between the necessary melting points of the two materials, and the melting point temperature of the first shot material is high, otherwise it is easy for the second shot material to melt the first shot material. This kind of injection molding is easy to realize, generally the first The shot is PC or ABS, the second shot is TPU or TPE.
2. Widen the contact area as much as possible, do some trenches, etc., increase the adhesion, avoid problems such as delamination and cracking, etc.; consider also using the core in the first shot to inject the second shot part of the material into the first shot. Inside, to increase the reliability of the fit; the first shot of the mold surface as rough as possible, without polishing.
Application of two-color injection in water cup
During the manufacturing process of the water cup, we use the characteristics of two different materials to achieve different effects through the two-color injection molding process - soft touch, rich colors, changing shapes, etc. These effects are passed by the designer. Carefully designed to reflect on different cup parts, want to know where on a cup used two-color injection molding it? Follow Xiaobian to understand it.
1, the application of two-color injection on the handle design
Two-color injections are the most widely used on the handles as the design of soft rubber liners for sports cups. Its role is reflected in:
1. People sweat when they are in the process of exercise. The soft lining has a good anti-slip effect because it is not as smooth as the hard glue. It feels more comfortable.
2 When the overall color of the lid is low, the use of high jump colors as the color of soft rubber liner immediately reflects the sense of movement of the cup, the visual effect is more young and stylish, is also when the designer in the design of sports cup handle Common design techniques.
Looking closely at the edge of the soft liner, we can see the appearance of a slit-like step form that appears to avoid the blurring of the two materials in the two-color injection process. It is also the designer’s ability to design the product. The embodiment.
2, the application of two-color injection on the lid
Two-color cover, with concave and convex mechanism modeling, easier to unscrew the lid
3, double color injection in the cup body
1. The cup body is rich in shape and dynamic;
2. Hand comfort, with the surface texture treatment, more atmospheric;
4, the application of two-color injection in children's products
1 two-color injection in children's pot handle application:
The most common application of two-color injection on the handle is the handle design of the children's pot. The two-colored handle makes the color of the cup richer and more comfortable at the same time, which is more suitable for baby's grip.