Hot Melt Roller Coater
In this type of coating procedure, the coating material
is measured onto the applicator roller by precision setting of the
gap between the upper metering roller and the application roller.
The coating is 'wiped' off the application roller by the substrate
as it passes around the support roller at the bottom. The diagram
illustrates a 3-roll reverse roll coating process.
Trasy Enterprises has developed a hot melt coating machine on this principle
the working machine. The absence of solvents, volatile parts and
water, offers an environmentally friendly operating process, and
since no additional heating energy is required to evaporate water
or solvent and the curing takes place by ambient air temperature
or by the humidity of the ambient air, no drying or curing ovens