COATING METHOD OF PHOSPHORES FOR THE MANUFACTURING OF DRY ELECTRONIC SCREEN FOR CRYSTAL CIRCUITS, PHOSPHORES AND DRY ELECTRONICS SCREEN USING THE SAME

摘要

The present invention provides a phosphor for manufacturing a dry electrophotographic screen of a cathode ray tube excellent in triboelectrification characteristics.;The fluorescent material is characterized in that a cellulose polymer is coated on the entire surface of the particle. The coating method for this purpose is coating with an acrylic polymer using an acrylic emulsion, then classifying it, coating it with an acrylic polymer using an acrylic emulsion, classifying it and then coating it with an acrylic polyurethane using an acrylic emulsion, Coating the surface of the phosphor with a cellulosic polymer, which is a post-process, by coating the part where the coating is separated off.;As a result, charging for development can be uniformed through friction with the inner wall of the tube such as the venturi tube 146, and a panel having uniform density of the phosphor can be manufactured.