What is the cause of dark streaks in silicone products?shower brush for back company

　　In the production process of silicone products, we see a lot of common problems. What makes us the most brain-burning is the quality problem of the product, and the quality problem can also be divided into many types, including artificial problems, natural phenomena, mold problems, and raw material problems. If you wait too much, then you find that the product has streaks, and what is the problem of dark lines?

　　First of all, during our rubber mixing process, due to mechanical rubber mixing, the mixing will be more or less uniform. When vulcanizing agent and color masterbatch are added, the mixing time is too short, so the original color is uneven. , the color is half dark and half light, so for the rubber mixing personnel, the first process is the most important. After the rubber mixing is completed, placing it for too long will also lead to defective products of the silicone products made. Generally, the raw materials that are placed for too long have a great change in the hardness of the product, so they should be used in time. to two days.

　　When the raw materials that have just been trained during the molding process are molded and pressed, attention should be paid to the adjustment of the temperature. If the temperature is not enough, the silicone products will appear streaks after they come out, or even unfamiliar. Therefore, the temperature must be raised every time it is started. . When the vulcanization is too high, there will also be problems. The silicone raw material itself is transparent. When the color masterbatch is added and subjected to high temperature vulcanization, there is no problem under normal high temperature. However, if the vulcanization time is too long, as the temperature rises, the color masterbatch will be There is a slight dispersion phenomenon in the raw materials, so there will be color deviation and dark marks in the product, so it is not suitable when the temperature is too high, and the temperature is too low. Keep it moderate, so as to solve the dark marks of the product phenomenon to make customers more satisfied.

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