tio2 used in paper supplier

This article discusses the discovery of phosphorescent lithopone on watercolor drawings by American artist John La Farge dated between 1890 and 1905 and the history of lithopone in the pigment industry in the late 19th and early 20th centuries. Despite having many desirable qualities for use in white watercolor or oil paints, the development of lithopone as an artists’ pigment was hampered by its tendency to darken in sunlight. Its availability to, and adoption by, artists remain unclear, as colormen's trade catalogs were generally not explicit in describing white pigments as containing lithopone. Further, lithopone may be mistaken for lead white during visual examination and its short-lived phosphorescence can be easily missed by the uninformed observer. Phosphorescent lithopone has been documented on only one other work-to-date: a watercolor by Van Gogh. In addition to the history of lithopone's manufacture, the article details the mechanism for its phosphorescence and its identification aided by Raman spectroscopy and spectrofluorimetry.

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tio2 used in paper supplier2025-08-15 02:05
2039

A paint pigment factory is a bustling hub of precision and innovation, where the journey from mineral or chemical compound to finished product is a testament to human ingenuity. The primary function of these factories is to extract, refine, and blend pigments, which are the substances responsible for giving paint its color. These pigments can be natural, derived from sources like clay, earth, or plants, or synthetic, created through chemical processes.

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tio2 used in paper supplier2025-08-15 00:17
1522