Rubber rollers should be well maintained during use

The rubber roller is mainly used to transfer ink on an offset press. Therefore, when cleaning the rubber roller in daily life, it is necessary to clean it carefully, otherwise it will cause the surface layer of the rubber roller, pigment, and resin to oxidize and form a smooth and hard film, causing surface vitrification and affecting ink transfer. Therefore, when stopping the machine, the rubber rollers should be cleaned 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 rubber roller, causing it to deink. The solution is to remove the emulsified ink, wash the deinking roller with gasoline, mix and polish it with 5% sodium hydroxide aqueous solution and pumice powder, and also treat the metal roller (or hard roller) accordingly. The hard roller can also be polished with fine water sand in a water drenched state, and attention should be paid not to stay fixed in the same part, otherwise it will damage the rubber roller. The fundamental solution is to control the pH value of the water bucket and maintain a good balance of ink and wash.

The rubber rollers that have been used for too long and aged, combined with the erosion of chemicals, can cause the rotten glue to fall off. It is best not to use such rubber rollers again, otherwise it will seriously affect the quality of the print.

To ensure that it does not affect production and printing quality, it is necessary to have spare ink rollers, but do not store too much to avoid aging. The storage environment of rubber rollers is the same as that of rubber cloth. In addition, the rubber roller should be straightened at the shaft neck and the surface should not come into contact with each other or other objects to avoid deformation of the rubber roller.

Rubber 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 the rubber rollers to age and crack.

When the weather is cold and the ink is not evenly mixed, auxiliary materials can be added to the ink appropriately. It is prohibited to use infrared heaters and other equipment to bake the ink roller to prevent oxidation of the roller.

The rubber roller is mainly used to transfer ink on an offset press. Therefore, when cleaning the rubber roller in daily life, it is necessary to clean it carefully, otherwise it will cause the surface layer of the rubber roller, pigment, and resin to oxidize and form a smooth and hard film, causing surface vitrification and affecting ink transfer. Therefore, when stopping the machine, the rubber rollers should be cleaned 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 rubber roller, causing it to deink. The solution is to remove the emulsified ink, wash the deinking roller with gasoline, mix and polish it with 5% sodium hydroxide aqueous solution and pumice powder, and also treat the metal roller (or hard roller) accordingly. The hard roller can also be polished with fine water sand in a water drenched state, and attention should be paid not to stay fixed in the same part, otherwise it will damage the rubber roller. The fundamental solution is to control the pH value of the water bucket and maintain a good balance of ink and wash. The rubber rollers that have been used for too long and aged, combined with the erosion of chemicals, can cause the rotten glue to fall off. It is best not to use such rubber rollers again, otherwise it will seriously affect the quality of the print. To ensure that it does not affect production and printing quality, it is necessary to have spare ink rollers, but do not store too much to avoid aging. The storage environment of rubber rollers is the same as that of rubber cloth. In addition, the rubber roller should be straightened at the shaft neck and the surface should not come into contact with each other or other objects to avoid deformation of the rubber roller. Rubber 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 the rubber rollers to age and crack. When the weather is cold and the ink is not evenly mixed, auxiliary materials can be added to the ink appropriately. It is prohibited to use infrared heaters and other equipment to bake the ink roller to prevent oxidation of the roller.