Method for determining curing degree of UV-hardening printing color/lacquer, which is coated on e.g. paper in printing industry, involves representing measure for obtained curing level by measured changing of reflection/transmission power

摘要

The method involves measuring reflection and/or transmission power and/or friction co-efficient and/or wear resistance of color-or lacquer layers (2), before and after hardening. The measured changing of the reflection and/or transmission power and/or co-efficient and/or wear resistance of color-or lacquer layers represents a measure for obtained curing level. Color or lacquer is applied on a carrier material (1). A friction body (51) is moved over a color or lacquer surface to be measured. High power UV-LEDs (12-14) are arranged on a carrier (10). An independent claim is also included for a device for determining curing degree of UV-hardening color or lacquer.