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SCO is an independent consulting office specializing in the areas of polymer processing and fiber formation by providing consulting services and software development.
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Chapter 17. Coater Dryer |
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[Simulation Analysis for Polymer Processing by PC (10), Japan Plastics, Vol.50, No.8, P.95 (1999)]
Film coating is an important process for film processing, where polymer-solvent solution is coated on plastics films etc., and continuously passing through dryer(s) the solvent is evaporated. The coating process is applied to the production of adhesive tapes, photo-films, wrapping films, magnetic tapes, dry film resist (DFR) used for producing printed circuit boards, etc. To analyze the drying process of the coated film, it is necessary to consider heat transfer in the base film and the coated film (solution layer) together, and mass transfer in the coated film accompanying evaporation of the solvent at the surface. It could be said this is a complicating and interesting problem. In this chapter, theoretical equations derived by the present writer referring to the theory of dry spinning [16], simulation program based on the theory and its calculation example are presented. [16] Ohsawa. Y. et al., J. Appl. Polym. Sci., 14, 1879 ('70), etc. |