The rubber roller itself is a rubber product made by vulcanizing the coated rubber layer on the iron core. Its materials include natural rubber, nitrile rubber, silicone rubber, polyurethane and so on. The surface adhesive layer of rubber rollers commonly used in offset printing is generally nitrile rubber, and polyurethane rubber is used for medium and high-grade rubber. The rubber roller is also one of the main components of the offset printing machine’s inking system. It must be in constant contact with water, ink, paper, etc., so it should absorb water to the minimum. Compared with metal rollers, rubber rollers have the characteristics of elasticity, acid and alkali resistance, no rust, etc., have good ink absorption and ink transfer, and are easy to clean, so they are widely used.

However, to a large extent, more emphasis is placed on the life of the rubber roller. In this respect, it needs effective maintenance.