Wet labeling glass is usually not a problem because the surface of glass is polar and wettable with water. But if the glass container has been coated with a polymer coat, targeted pretreatment is required to get the casein glue that is typically used to bond.
The RD1010 Openair-Plasma® jets, which can be integrated inline, activate the surface to increase the wettability of the coated glass, with low temperature impact.
Self-stick labels with the no-label look are used for sophisticated designs. Plasma pretreatment achieves both micro-cleaning (plasma cleaning) and targeted increase in surface tension. This way, bubble-free application of these labels is greatly simplified by using Openair-Plasma®.