Topic: Surface type determination, surface tension
Plasma technology: Determination of the surface tension of the starting materials
Surface tension is the most important measure for evaluating the acceptance of printing ink, or the probable adhesive strength of an adhesive layer or of a surface coating.
In order to evaluate the optimum parameters for pre-treatment by means of plasma technology the surface tension of the starting materials is determined, e.g. by Plasmatreat’s test ink method. The most important test methods for determining surface tension are determination by means of test inks, the contact angle method and dynamic measurement.
Evaluating surface tension
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| Low surface tension, less than 28 mN/m |
Good conditions for adhesion, surface tension of 42 mN/m or more |
