Modern Coating and Drying Technology

Part 1 Choosing the coating method: coating components and structures coating technologies coating methods selecting a coating method - basic considerations choosing the coating method information sources. Part 2: purpose of fluid handling and preparation fluid displacement flow measurement gas removal filtration online injection and homogenization temperature control system perturbations residence time systems cleaning. Part 3 Roll coating: classification of roll coating flows analysis of roll coating flows forward roll coating ribbing instability reverse roll coating deformable rolls gravure coating. Part 4 Premetered coatings: review of premetered coaters surface tension and wettability shear and elongation rates contact angles and spreading low flow limits of coatability instabilities in slide coating. Part 5 Air knife coating: overview typical operating range mechanism a coating thickness correlation defects and flow stability. Part 6 Drive systems for off-machine coaters: writing specifications selecting a winding machine for a coating operation the master or lead section and factors that reduce its effectiveness on a coating machine influence of unwind and winder on web control a speed monitoring system tension in a coating machine effects of wiring practices on tension control when to use pure speed control types of tension control sytems isolation sections that can control tension integral versus proportional control the need for motoring and regeneration sizing power supplied for off-machine coater drives web web guides and web spreaders defects - sources and solutions application considerations for off-machine coater sections summary. Part 7 Thin film drying: basic principles drying regimes hardware dryer control drying defects.