Loading
Primer application is not limited to gravure systems. Many converters have found that smooth roll applicators are also well-suited to apply MICA water-based primers. A smooth roll applicator effectively delivers thin coat weights of low viscosity primers, such as MICA A-131-X.
When trying to manufacture structures with multiple layers, a chemical primer is usually needed to improve bonds between a substrate and a coating, such as an extrudate, or ink. Primers can also help to enhance barrier properties, aesthetics, and overall performance of the finished structure.
Water-based primers are favoured by converters worldwide because they are safe for the environment and workers, promote adhesion to many substrates and extrudes, and enhance performance in a wide variety of extrusion coating and extrusion lamination applications.
Treating a substrate by flame or corona discharge treatment is necessary for creating strong, successful film-based structures, but over-treating polyester (PET) and polyamide (PA) films can be detrimental