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Titanium dioxide is a synthetic white pigment with high hiding power, nontoxic, permanent, and usable in all medium.
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Titanium dioxide pigment is a fine white powder. When used in paints, it provides for maximum whiteness and opacity. It gives paint high hiding power, meaning the ability to mask or hide the substrate underneath. It does this more effectively than any other white pigment. Today, titanium dioxide pigment is by far the most important material used by the paints industry for whiteness and opacity. These unique properties are derived from the refractive index of titanium dioxide. The refractive index expresses the ability to bend and scatter light. Titanium dioxide has the highest refractive index of any material known to man, greater even than diamond. To take advantage of this property, titanium dioxide must be mined, refined and ground to a fine, uniform particle size.
Titanium dioxide white pigments are developments of the 20th century, and because of their high hiding power, low toxicity and reasonable cost, they have eclipsed other traditional white pigments.
Titanium dioxide is a rutile pigment that:
Titanium dioxide (TiO2) and other white pigments make the paint films opaque by diffusely reflecting light. This reflection occurs because the white pigment disperses or bends light. If there is enough white pigment in a paint film, almost all visible light striking it (except for a very small amount absorbed by the pigment) will be reflected, and the film will appear opaque, white, and bright. The primary control of opacity and brightness in white paint films depends on scattering of light. Scattering of light means bending of light, and in coatings, light can be bent by surface reflection, by refraction and by diffraction.
Esaar International Pvt. Ltd. is a leading supplier of Titanium Dioxide in India and also a Titanium di oxide Exporter. Find our TiO2 TDS here: Click Here
Titanium dioxide is a widely used pigment in products from plastics to printing ink. In fact, the coatings industry is the largest user of titanium dioxide, and within coatings, the industrial segment comprises half the market.
Which is why its so important to streamline TiO2 testing.
Today Ill share a new quality control process for titanium dioxide (TiO2). Datacolor developed the process in cooperation with the Asia Pacific R&D center of a leading global coating company, and weve just released a paper with the technical details. Titled Quality Control Testing for Titanium Dioxide Industrial Coatings Bases. Here are the highlights.
Five measures of quality
Whiteness, color coordinates, contrast ratio, strength, and resistance to weathering are all key quality indicators for TiO2.
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Recommended article:Companies need to accurately measure each of these factors, test results need to be repeatable, and the data should be easily shared. Interoperability among test instruments will let companies establish acceptable levels of deviation from standard that their vendors can test against to ensure quality.
Factory entry powder test case
Company A was using a slow, inconsistent, and inefficient method of testing the quality of a critical raw material: its incoming titanium dioxide powder.
Testers would grind the TiO2 into a base coating, scrape up and dry a sample, and measure it with a whiteness meter. This hours-long process needed to be repeated to average inconsistent data, and the results couldnt be shared among other instruments as references for customers. So while whiteness meters are simple to use and relatively inexpensive, theyre inefficient.
Spectrophotometers, on the other hand, offer advantages that make them ideal for coating plant operators.
The Datacolor solution
For Company A, Datacolor and its project partner recommended the Datacolor 800V solution.
Company A realized a number of significant benefits by using the Datacolor spectrophotometer.
Three years after moving to the new testing procedure, it continues to provide efficient and accurate measurements for Company A. Its also captured the attention of other titanium dioxide manufacturers and coatings companies.
To learn more about our solutions for the coatings industry, visit our paint and coatings market page.
If you are looking for more details, kindly visit Titanium Dioxide in Painting.
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