CHINA CLAY POWDER (KAOLIN)

Kaolin or China clay. is nearly white in color. It is distinguished from other industrial days based on its fine
particle sae and pure coloring. Its acuity to disperse in water makes it an ideal pigment The primary constituent
in kaolin is the mineral kaolinite. a hydrous aluminum silicate formed by the decomposition of minerals such as
feldspar. The name kaolin derives from the Chinese and means high ndge High ridge is a reference to the hill in
south-eastern China where the clay was orig.-tatty discovered and used In the 7th and 8th centunes. the
Chinese were the first to use kaolin to make porcelain. It was not until centuries later that other areas of the
world could duplicate the process The white color of the mineral can either be naturally occurring, or can result
after processing which removes minerals and other color-bearing compounds The small particle size of the
mineral contributes to its white color by scattering light. Although kaolin is found throughout the world,
deposits with suitable whiteness. viscosity and other favorable characteristics are rare ironically. the best
deposits are not located in China. The United States has high-quality deposes in the Southeast The mineral has
been mined since colonial times in Georgia and South Carolina. Other valuable deposits are located in India.

Following are the applications of Kaolin
Paper Industry: The primary use of kaolin is in the paper industry It serves as a paper coating which improve,
7,– 7_
• bnghtness smoothness and gloss It also improves pnntabilrty Addrtronally is used by the paper industry as a
tiger reducing cost ario the use of tree based resorces
Kaolin or China clay. is nearly white in color. It is distinguished from other industrial days based on its fine
particle sae and pure coloring. Its acuity to disperse in water makes it an ideal pigment The primary constituent
in kaolin is the mineral kaolinite. a hydrous aluminum silicate formed by the decomposition of minerals such as
feldspar. The name kaolin derives from the Chinese and means high ndge High ridge is a reference to the hill in
south-eastern China where the clay was orig.-tatty discovered and used In the 7th and 8th centunes. the
Chinese were the first to use kaolin to make porcelain. It was not until centuries later that other areas of the
world could duplicate the process The white color of the mineral can either be naturally occurring, or can result
after processing which removes minerals and other color-bearing compounds The small particle size of the
mineral contributes to its white color by scattering light. Although kaolin is found throughout the world,
deposits with suitable whiteness. viscosity and other favorable characteristics are rare ironically. the best
deposits are not located in China. The United States has high-quality deposes in the Southeast The mineral has
been mined since colonial times in Georgia and South Carolina. Other valuable deposits are located in India.
Porcelain and Tableware: Many peop,e are under the mistaken impression that the only use for kaolin is in the
manufacture of Porcelain and Tablestere. This is true, and its use by the pa, industry far exceeds its other uses
However. kaolin still serves as a valuable component in tither Tab./vim Rs color, gloss, and hardness
chanicteristics tor such products.