Main raw materials: polymer, vulcanizing agent, plasticizer, filler, accelerator
The main process and function: mixing - filtering - curing - grinding - polishing
1. Mixing: control the content of each component, heat drying temperature, etc. to make the hardness and component stable.
2. Filtration: make the colloid uniform and free of impurities. This point is particularly important for high-speed printing press: in high-speed operation, the force is uniform and the energy is uniform. When the expansion or contraction is caused by various factors, the uniformity can still be maintained. In this way, the adverse effects can be reduced or avoided only by adjustment.
3. Curing: by heating, pressing and curing, the accelerator is stabilized to minimize the shrinkage of rubber under external force. Will be soft and ductile compounds into a solid, but there is a certain degree of softness of the material, which is more suitable for ink transfer and transfer.
4. Grinding and polishing: the key to determine the dimensional accuracy and surface area of cots, especially the radian treatment of alcohol water roller. The rubber surface looks smooth, but under the high magnification, there are many small bumps and depressions. These convex and concave parts increase the surface area of cots, which makes them have superior ink transfer and transfer performance.