Fading markings: improve ink durability (pad printing, screen printing)

A marking that fades, rubs off or peels is often caused by an insufficient or inconsistent surface condition. Even with the right ink, if the surface is not properly prepared, adhesion becomes unreliable and defects appear during production.

This is particularly critical in printing (pad printing, screen printing), where consistent ink spreading directly impacts long-term durability.

STTS highlights its quality-control know-how by measuring surface energy (surface tension) and interpreting the results to validate a material or a surface preparation.

Depending on the need, the evaluation is carried out using test inks (measurement reagents) or a goniometer (contact angle measurement), to compare before/after preparation and define a target level consistent with the application and industrial constraints.