Principle :
In this machine, 2 samples of the same substrate are rubbed against each other in the same plane, under a constant pressure of 2 p.s.i and at a fixed speed of 60 RPM. The number of rubs are recorded using a non-contact type digital counter.
Inference :
This machine works as a great comparator of the variations in print quality between various batchesor various suppliers
Higher Rub Resistance = better print quality.
Lower Rub Resistance = poor print quality.
|