Manufacturing process of printing roller
Main process flow and function: mixing filtration solidification treatment grinding polishing.
Main raw materials: polymer, vulcanizing agent, plasticizer, filler, accelerator.
1. Mixing: Control the content of each component, heating temperature, etc., to stabilize the hardness and composition.
2. Filtration: Make the colloid uniform and free of impurities. This is particularly important for high-speed printing machines: during high-speed operation, the force is evenly distributed and the energy is evenly transmitted. When various factors cause expansion or contraction, it can still maintain uniformity, which can be reduced or avoided solely by adjusting
3. Curing: By heating, pressing, and vulcanization treatment, stabilizing the curing agent, the rubber shrinks to a smaller extent when subjected to external forces. Transforming soft and stretchable compounds into solid materials with a certain degree of softness, making them more suitable for ink transfer and transmission.
4. Grinding and polishing: The key to determining the size accuracy and surface area of the rubber roller, especially the curvature treatment of the alcohol water roller. The rubber surface appears smooth, but under high magnification, there are many small protrusions and indentations. These raised and depressed parts increase the surface area of the rubber roller, making it have superior ink transfer and transmission performance.