Reducing the need for alcohol and non-alcohol printing on roll covers
After reducing the amount of alcohol, problems with the ink contamination dampening system often occur. Only changing the hardness of the rubber roller can not solve the problem, the chemical composition of the roller material should also be different. The 44-series rubber roller material developed by BOTTCHER (such as 14425) has the characteristics of supporting fountain solution and ink emulsification, and helps to achieve stable ink-water balance at various speeds. The water roller material is hydrophilic and prevents the dampening system from being contaminated with ink.
Recently, BOTTCHER's new sheet-fed offset press 90425, a sheet-fed offset press, can increase the quality of dampening and promote the use of reduced-alcohol solutions. The new rubber roller material applied well to the SPEEDMASTER 102 offset press in Heidelberg, and many customers started using the 90425, 24430 rollers. Compared with the traditional rubber roller, 90425 roller material has better dampening stability and invalidity. The ink balance of the offset press equipped with a new type of rubber roller is significantly faster than that of a machine using a traditional rubber roller, that is, reducing the amount of alcohol in the fountain solution can also achieve a better dampening effect. The new rubber roller material also achieved good results when used on offset presses such as GT052, SPEEDMASTER 52 and 74. The SPEEDMASTER 102 in the Heidelberg company's exhibition center uses alcohol-free dampening. The machine uses BOTTCHER's new rubber rollers. The center operator says the printing quality is satisfactory.
The Roland 300E and ROLAND 700 offset presses from MAN Roland have achieved the desired results with the new rubber rollers. Users are satisfied with the new rubber roller, not only because of its improved dampening performance, but also because in the printing process, regardless of the short version of the live or long version of the live, can guarantee a stable printing quality, the water roller cleaning does not touch the ink.
In short, the problem of reducing the amount of alcohol has caused more and more printers to pay attention. Use the right roller to get the desired product. BOTTCHER 31035 rubber roller material is very suitable for installation on a new generation of thermosetting web offset press with a speed of 15 meters per hour. This roller should reduce the temperature during the operation of the printing press and reduce the ink atomization.
In summary, in recent years, BOTTCHER has been committed to the development of new rubber roller materials, creating favorable conditions for printers to meet the challenge of reducing alcohol. We believe that through various efforts, non-alcoholic printing plants will be accepted by more people in the next 2-3 years.