CERAMIC PAINT OF RED-BROWNISH COLOR Russian patent published in 1998 - IPC

FIELD: production of ceramic low-melting paints used for applying decorative coatings onto thin glass articles and for expanding chromatic gamut of red-brownish shades in orange-rose spectral region. SUBSTANCE: ceramic paint comprises following components, wt.%: lead minimum, 48.2-51.0 BF Pb 304; silicon oxide, 18.6-21.4 BF Si 02; boron oxide, 10.2-12.2 BF B 203; ferric oxide (III), 1.3-1.7 BF Fe203; zinc oxide, 0.7-1.1 BF ZnO; sodium oxide, 4.0-6.0 BF Na20; titanium oxide, 3.9-4.3 BF Ti02; alumina, 0.2-0.4 BF A1203; zirconium, 4.3-4.5 BF Zr02; lithium, 0.2-0.6 BF Li02; calcium fluoride, 1.7-2.1BF CaF2; antimony oxide, 0.5-0.9 BF Sb203. The paint has the following characteristics: color purity, 46.5-46.9%; color saturation, 23.6-23.8%; wavelength "lambda D", 592-593 nm. EFFECT: higher efficiency. 2 tbl