rutile and anatase suppliers

The allure of TIO2 lies in its exceptional optical properties. As a pigment, it boasts unrivaled refractive index values, making it an ideal candidate for creating bright, opaque finishes. When incorporated into paints, TIO2 amplifies the reflectance of light, thereby reducing the need for additional layers and saving on material costs. Its ability to scatter all wavelengths of visible light uniformly ensures that the resultant hues are pure and vibrant, transcending the limitations of traditional pigments.

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As early as sixty years ago, zinc sulphide was first thought of as a pigment for coloring India rubber and a patent for the process of its manufacture was issued in England. But it was not until twenty years later that zinc sulphide and its manufacture was seriously considered as a pigment for paint, and in 1874 a patent was issued for a process of manufacturing a white pigment, composed of zinc sulphide and barium sulphate, known as Charlton white, also as Orr's white enamel. This was followed in 1876 by a patent issued to a manufacturer named Griffith and the product, which was similar in character to Charlton white, was known as Griffith's patent zinc white. In 1879 another patent for a more novel process was obtained by Griffith & Cawley, the product made under this process proving the best of the series placed upon the market up to that date. After that time many new processes were patented, all, however, tending to the same object, that of producing a white pigment, composed of zinc sulphide and barium carbonate, the results, however, in many cases ending with failure.

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{随机栏目} 2025-08-14 13:14 2879