KARL SCHRÖDER KG

Abrasion Testing Machine AT II

The abrasion behaviour between printing ink, forme and doctor blade material can be examined through the Abrasion testing machine AT II. It can be done under laboratory conditions to derive from it reproducible results.

Together with the ink reservoir and the driving member, the testing apparatus forms a complete unit. The removable doctor blade head with the multiple doctor blade system represents his principle item.

By four doctor blades, arranged in a circle, and a pretended doctor blade angle of 60°, the test time will be fourfold reduced. These present facts are noticeable, for so we get within a range of five hours a result corresponding to a printing number of two millions of cylinder revolutions.