UV-preventing glass for vehicle window

Abstract

The invention provides anti-ultraviolet glass used for an automotive window, and relates to body colorized glass. Soda-lime-silica glass is used as a base glass composition of the glass, and a coloring agent of the glass respectively comprises the following compositions in weight percentage: 0.3 to 1.1 weight percent of Fe2O3, 1.1 to 2.5 weight percent of CeO2, 0.01 to 0.19 weight percent of TiO2, 5 to 200 PPM of Cr2O3, and 0.1 to 35 PPM of CoO; the oxidation reduction factor is between 0.22 and 0.36; visible light transmission is not less than 70 percent; and ultraviolet transmission is not more than 14.5 percent, wherein transmission of light with wavelength of 350 nanometer is not more than 1.5 percent, a main wavelength coverage of a wavelength region of between 380 and 780 nanometers is between 518 and 538 nanometers, and excitation purity is between 1.8 and 3.8 percent; and measured color of the product by CIE 1,976 color measurement system is as follows: L of between 85 and 93, a of between minus 5 and minus 10, and b of between 2 and 10. According to the invention, anti-ultraviolet glass with excellent anti-ultraviolet effect can be obtained with higher transparency, and can be applied to automotive front windshield glass which has strict requirement on the visible light transmission.

Description

technical field [0001] The invention relates to a body colored glass. Specifically, it relates to a body tinted glass with an ultraviolet protection function. More specifically, it relates to a UV-resistant body tinted glass with high transmittance and green tint, which is suitable for various vehicle window glass and architectural glass, especially various automotive glass. Background technique [0002] Because of its high visible light transmittance, glass has been widely used; in recent years, various decorative parts inside automobiles have become more and more beautiful and high-end; at the same time, the requirements for glass for automobile windows have become higher and higher, and a new type of glass has emerged. Body-tinted glass that provides UV protection while maintaining high visible light transmittance. This kind of anti-ultraviolet body colored glass is mainly realized by the float process. While maintaining high visible light transmittance, it can also pre...

AI Technical Summary

Problems solved by technology

The visible light transmittance of the glass is low, and does not contain CoO, Cr 2 o 3 and other colorant components, while CoO, Cr 2 o 3 As the main coloring component, the two will directly affect the color or tone of the glass