Coating Process Technology is in widespread use. Coating is necessary for modification or improvement of the substrate to make it more suitable. Several Industries are based on Coating Process Technology. Adhesive coating, Printing, Flexible Laminates are the few examples. The basic steps in continuous production of coated substrates are as follows. 1. Preparing the coating solution; 2. Unwinding the substrate roll; 3. Transporting / passing it through the coater; 4. Applying the coating from the coating solution; 5. Drying the coating; 6. Winding the final coated roll; 7. Converting the coated substrate to final size.