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Notes of new rubber roller's use

1. The use of new rubber rollers

Before printing. Pls check whether there is any foreign matter between the roller and the roller, whether the rubber roller is intact or not, and whether the pressure between the rollers is uniform and consistent. It can printing after clean the roller .
In the printing. The rubber roller should always maintain a good contact state during operation, and the force is uniform. Regardless of the width of the printed product, the entire rubber surface of the rubber roller should be lubricated with ink or dampening solution; depending on the amount of ink accumulated between the rubber rollers and the amount of water, timely adjustment is made to ensure the printing quality.

Under the premise of ensuring the printing speed, prevent the ink from drying too fast, the viscosity of the rubber roller is reduced, the surface is crusted, and the ink that needs to be added with dry oil should control the amount of dry oil to prevent the running rubber roller from being inked uneven or not ink transfer.
After printing. The roller and the roller or the roller and the printing plate should be disengaged from in time, it can be remove the load pressure，To prevent the rubber surface from being deformed by static pressure. And clean the residual ink on the surface of the rubber roller timely，it can be prevent it from drying and producing ink block，ink film and dirt adhere to the rubber surface,and when the rubber roller works, it will destroy the smoothness of the roller surface, and even cause the roller surface to slag.

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2. Maintenance of rubber roller

The newly cast rubber roller should not be put into use immediately. because the internal structure of the newly cast rubber roller is not stable enough. If it is put into use immediately, it is easy to reduce the service life. Therefore, the new rubber roller that has just been produced should be placed for a period of time to adapt the rubber roller to the ambient temperature and humidity, which can increase the toughness of the colloid and improve durability.
The bearing and shaft head of the rubber roller should maintain a good lubrication state. The precision of the rubber roller shaft head and bearing directly affects the effect of Ink transfer and ink distribution. If the lubrication is poor, it will easily cause the rubber roller shaft head and bearing to wear, which will inevitably lead to uneven printing ink color. Therefore, the printing company should regularly fill the rubber roller shaft head and bearing with lubricating oil, to prevent the wear parts from wearing the rubber roller and affect the normal use.
Idling protection. For the ink roller without the ink path clutch device, when it is in the idling state, the ink roller idling protection agent should be added to prevent the roller body from being damaged due to overheating. Usually, the idler protector is valid for 16 hours, so the protective agent should be reapplied after 16 hours.
Stored properly of the rubber roller
When hen the rubber roller to sit idle, it should be wrapped with paper or plastic, and the two ends of the rubber roller should be supported and placed on the rubber roller frame so as to be in an unstressed state, and it should not be stacked or placed vertically lean on the wall ，to avoid the colloids from damage. The rubber roller should be placed in a cool, ventilated room.Keep the temperature at 10~30 °C,The relative humidity is 50% to 80%.During the transportation process of the used rubber roller to the processing plant, it is forbidden to throw it away or put it under pressure to keep the roller core from being eccentric and not bending, and to ensure the normal use of the roller core after refurbishment.