MANUFACTURE OF CATHODE RAY TUBE HAVING GLARE-PROOF EFFECT AND ELECTRIFICATION-PROOF EFFECT

摘要

PURPOSE:To obtain a cathode ray tube equipped with a projected and recessed film having large adhesive force to glass and having a glareproof effect and an electrification-proof effect, by spraying and coating a face screen of a cathode-ray tube with specific solution and next firing this face screen. CONSTITUTION:A face screen of a cathode-ray tube is sprayed and coated with solution which is formed as follows: halogen compound of Fe, Co, Ni, Cu, Ag, Zn, Al, In, and nitrate or one or more species of compound selected from nitrate are added to a silica sol solution consisting of various silane compound of silane halide, silane alkoxide, sylylisocyanate, or the like, which can be formed into silica sol by a hydrolysis reaction and successively by dehydration.condensation reactions. Next this face screen is fired. Hence, a cathode-ray tube equipped with a projected and recessed film, which is large in adhesive force to glass and is of a glare-proof effect and an electrification- proof effect, can be obtained.