Precision Velocity Control in Coating & Laminating Applications

摘要

In web handling applications, much of the coating focus is placed on achieving perfect velocity control - and rightly so, as operators know all too well, velocity ripple causes uneven coating and unsightly horizontal bars across the substrate. There is one solution to overcoming these challenges - perfect velocity control. Simply put, when metering of the coating material is perfect, perfect velocity will result in an even application of the coating. As an example, consider film coating, where if one were depositing a dark film onto the substrate material, varying velocity would result in a series of dark and light "bars" across the material.