AQUA BLUE GLASS COMPOSITION

摘要

The present invention relates to an aqua blue glass composition having a base composition of a soda-lime-silica glass having as main coloring agents total iron, expressed as Fe2O3 in the range of 0.30 to 0.60% by weight with a ratio of ferrous (redox) in the range of 20 to 30; FeO in the range of 0.06 to 0.18% by weight; TiO2 in the range of 0.025 to 1.0% by weight; CO3O4 expressed in the range of 5 to 30% ppm; Se expressed in the range of 0.1 to 10 ppm; CuO in the range of 0 to 400 ppm; and Cr2O3 in the range of 10 to 20 ppm. The glass provides light transmittance, illuminant “A”, greater than 50%, a dominant wavelength (i) of 487 nm to 498 nm; a solar energy transmittance of less than or equal to 64.4%; an ultraviolet solar transmittance no more than 51.6%; and an excitation purity less than 12 for glass thicknesses from 4 to 12 mm.

主权项

1. A blue glass composition with a sodium-calcium-silicate base and a portion of colorant glass comprising: total iron, expressed as Fe2O3 from 0.30 to 0.60% by weight, with a ratio of ferrous (redox) in the range of 20 to 30%; FeO from 0.06 to 0.18% by weight; TiO2 from 0.025 to 1.0% by weight; CO3O4 from 5 to 30 ppm; Se from 0.1 to 10 ppm; CuO from 0 to 400 ppm; and Cr2O3 from 10 to 20 ppm, where the glass has a light transmittance illuminant “A” greater than 50%, a dominant wavelength (λ) from 487 ηm to 498 ηm; a solar energy transmittance less than or equal to 64.4%; ultraviolet solar energy transmittance of no more than 51.6%; and an excitation purity less than 12.