GLASS WITH LOW SOLAR TRANSMITTANCE

摘要

Disclosed is glass with low solar transmittance, which is characterized by containing soda lime silica glass as the base composition and containing, as color components, 0.70-1.70% by mass of Fe2O3 (the total iron in terms of trivalent iron), 0.15-0.45% by mass of FeO (divalent iron), 0-0.8% by mass of TiO2, 100-350 ppm of CoO, 0-60 ppm of Se, 100-700 ppm of Cr2O3 and 3-150 ppm of MnO. The glass with low solar transmittance is also characterized in that the ratio of the divalent iron to the trivalent iron (Fe2+/Fe3+) is 0.20-0.80. The glass has excellent ultraviolet light absorption performance and infrared light absorption performance (heat insulation performance), while having adequate see-through properties.