The applications of different pigments on ceramics
are brought in different forms. These applications are as follows:
In
Coating Ceramic Materials; Ceramic Glaze; Frits- By formulating
these coating applications of pigments on ceramics, the end users get
attractive looking products with more durability and utility.
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.
In
developing Ceramic Pigments- These special kind of ceramic pigments
can be developed with the help of other pigments and ceramic powder.
For enforcing the different applications on ceramics, various kind of
special pigments are available. 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.
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
be adopted. On several factors, the coloring effects of the pigments and
stains depend. These factors are: nature of the raw materials, the
firing temperature, dwell time and kiln atmosphere. For coloring the
sanitary ceramics, a number of inorganic pigments are required.
Cadmium, Tin-Oxide, Nickel-hydroxycarbonate, Ceramic
Glaze Pigments etc., are the some other important pigments that are used
for ceramics. 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.
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 colors.