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The applications of different pigments on ceramics are as follows:
In developing Ceramic Pigments-
These special kind of ceramic
pigments can be developed with the help of other pigments and ceramic
powder. How much of which pigment will have to use depends upon the desire
color intensity. But, the quantity of pigments that is used for these
applications can vary from 1% to 10%, this variation does not make any
noticeable impacts on the substances. Enamel (colorful) can be produced by
coloring the melt during manufacturing. Enamel can be also generated by
mixing coloring stains during the milling process.
In Coating Ceramic Materials; Ceramic Glaze; Frits-
looking products with more durability and utility are obtained by
formulating these coating applications of pigments on ceramics.
In Glaze development-
One of the application of pigments on ceramics
is to develop leading glazes for various whiteware ceramics. These include
sanitary ware, tile, dinnerware etc.
In preventing Ceramics Corrosion and color fading-
In this process,
by applying pigment coating and protective layer with other kind of
chemicals, the corrosion of the metals can be prevented. The lasting effect
of colors also increase.
Coloring process of Ceramic products
To color ceramic products and glass products,
heavy metal oxides are either dissolved in the ionic coloration (melts) or
can be incorporated into the melt like pigments or pigmentation process can
There are several factors on which the coloring effects of the pigments
and stains depend, and these are:
For coloring the sanitary ceramics, a number of inorganic pigments are
- Nature of the raw materials
- Firing temperature
- Dwell time and kiln atmosphere.
Some important pigments for ceramics
Cadmium, Tin-Oxide, Nickel-hydroxycarbonate,
Ceramic Glaze Pigments etc., are the some other important pigments that are
used for ceramics.
Tin oxide pigments are versatile materials for ceramics. The thermal
stability and chemically inert nature of tin oxide enable it to generate a
board palette of durable ceramic color.
Cadmium pigments provide a wide range of rich color to the ceramics, like
red, orange and yellow. Cadmium pigments are highly resistance to heat and
pressure and very less soluble. So, these pigments are exposed to high
temperature or pressure during the application process to ceramics.
Cobalt as a pigment for ceramics
As a pigment, cobalt is more famous for ceramics.
The color imparting capacity of cobalt containing minerals is very old. It
has been utilizing as a pigment from the ancient period. This property of
cobalt has been used in glass, ceramics, paints, inks, porcelain etc. Some
unique properties, that make it the most widely applicable pigment for
ceramics are: solubility, stability, coloring effects etc.