Notes on maintenance of textile rubber rollers

Textile rubber rollers are mainly used to transfer ink on offset printing machines. Therefore, when cleaning textile rollers in daily life, it is necessary to carefully clean them, otherwise it will cause the surface layer of the roller to oxidize with pigments and resins to form a smooth and hard film, resulting in surface vitrification and affecting ink transfer. Therefore, when stopping the machine, the textile rollers should be washed and stored for future use.
In offset printing operations, ink emulsification occurs due to the large amount of water and ink, forming a hydrophilic foundation on the smooth textile roller, causing it to de ink. The solution is to remove the emulsified ink, wash the de inked textile roller with gasoline, mix it with 5% sodium hydroxide solution and pumice powder for polishing, and also treat the metal roller (or hard roller) accordingly. The hard roller can also be polished with fine water sand while being sprayed with water. Be careful not to fix it in the same place, otherwise it will damage the textile roller. The fundamental solution is to control the pH value of the water bucket and maintain a good balance between ink and wash.
Textile rubber rollers that have been used for too long and have aged, coupled with the erosion of chemicals, can cause glue to rot and "slag" to fall off. Such textile rubber rollers should not be used again, otherwise it will seriously affect the quality of printed products.
To ensure that production and printing quality are not affected, it is necessary to have spare ink rollers, but do not store too much to avoid aging. The storage environment for textile rollers is the same as that for rubber blankets. In addition, the textile rubber roller should be placed flat at the neck of the shaft, and the surface should not come into contact with each other or other objects to avoid deformation of the textile rubber roller.
Textile rollers should not be stored near large electric motors or generators. Because the large amount of ozone generated by these devices can cause the surface of textile rollers to age and crack.
When the weather is cold and the ink cannot be evenly mixed, auxiliary materials can be added to the ink appropriately. It is forbidden to use infrared heaters or other equipment to bake the ink on the textile roller to prevent oxidation of the roller.