
Ultramarine
blue is a blue pigment consisting primarily of a double silicate of
aluminium and sodium with some sulfides or sulfites. The blue color of the
pigment is due to the S
3- radical anion, which contains an
unpaired electron. It is produced by heating kaolin, sodium carbonate,
sulphur and other inexpensive ingredients together. It is heat and alkali
resistant.
Ultramarine Blue is a very safe, environmental friendly & non-hazardous
blue pigment with multiple uses worldwide. Its synthetic manufacturing
process and control over its physical, chemical, and color characteristics
enables it in producing many other types of blue pigment, which are readily
accepted by plastic,
printing ink, paint, cement, soaps & detergents,
paper and many other industries. It has excellent light-fastness
and
possesses an excellent heat stability up to 350°C, due to these
advantages it is preferred over other organic pigments and dyes.
Due to its multifarious advantages and manifold usages,
Ultramarine Pigment is used in diverse industries to function in many
applications, such as:
Inks
:
- Ultramarine Blue is a suitable pigment for use in inks due to its
inorganic nature. It shows good wettability in water systems and good
resistance to organic solvents. Due to its many characteristics
properties such as good light resistance and low oil absorption it is
used in different types of inks e.g. Flexographic.
Paints
:
- Ultramarine Blue is widely used in a variety of paints for Oil
Paints, Water and Acrylic Paints, Water-based Emulsion Paints etc. It
provides a bluish undertone, while providing uniformity in the
composition. Ultramarine Blue pigment displays high fastness to alkalis,
air, light, water, detergents and organic solvents.
Masterbatch
:
- Ultramarine blue has non-shrinking, non-warping properties, along
with its exceptional heat and light stability, it has led to the
development of a range of high quality pigments specifically for
masterbatch applications. This pigment is widely used in applications
that require improved appearance in brightness, transparency, and
surface smoothness. The color masterbatch also provides improved
mechanical properties preferred for manufacturing of thin films,
pressure pipes, fibres, bottles, etc.
Surface
Coating :
- Ultramarine Blue pigment is used in surface coating. It occupies a
unique position in the blue color space that can not be achieved by any
other pigment or blend of pigments. Its reddish undertone is highly
appreciated in both mass tone and tint applications in surface coating.
This makes the pigment clearly differentiated from any Blue
Phthalocyanine and any Cobalt Blue, even if they are in combination with
organic violet pigments.
Paper
:
- Ultramarine Blue is extensively used for the whitening of cellulose
pulp and the coloration of the outside coating on colored and stucco
papers. It is used as blue pigment or as filler shade correctors because
in paper coating treatment, high dose levels of pigments and white
fillers are used. A blend of Ultramarine Blue and a optical whitener is
used to achieve optical whitening especially under a light which is rich
in ultraviolet rays. It can be easily eliminated with waste water &
has no contaminant risks. Moreover, it is environmental friendly, which
is an added advantage in the Paper industry.
Plastic
& Rubber :
- Ultramarine Pigments has non-shrinking, non-warping properties, due
to these it maintain the dimensional stability of polyolefins and other
polymers. It is compatible and suitable for all kind of polymers, such
as polyolefins, rubber polymers and more. It is not only used to provide
the reddish blue shade or to whiten polymers, but also to provide a blue
undertone to gray and black plastic parts.
Soaps,
Detergents, Toiletries & Cosmetics
- Ultramarine Pigment is used in various types of toiletries
formulations such as: shampoos, soaps, gels, etc. It has a unique
reddish blue shade and possess high tinting strength, which makes the
product non staining in final use. In cosmetics, it is valued for its
brightness and non-irritability characteristic and also has very low
levels of any impurity. Few examples of fields of application are eye
shadows, face powders and artistic make-ups.
Cement
and Construction Industry :
- The coloration of cement or any formulation is based on nature of
cement such as mortars, concrete, tiles joints. With Ultramarine
Pigments the coloration is possible only under controlled conditions of
formulation and use. Ultramarine Blue is widely used in house roof
coatings preparations that is colored with blue.
Artist's
Colors Industry
- Ultramarine blue is widely used in oil colors, fat pencils, modeling
pastes, water colors, acrylic colors and many more. Its non-staining
property contribute a great deal in it's success in the artists' colors
industry.
Laundry blue" is a solution of synthetic
ultramarine that is widely used to improve the appearance of textiles,
especially white fabrics. White fabrics acquire a slight color cast after
use. Since blue and yellow are complementary colors in the subtractive color
model of color perception, adding a trace of blue color to the slightly
off-white color of these fabrics makes them appear whiter.
Ultramarine blue is the most commonly used laundry blue. It gives a violet
blue color and makes a fine powder and thus becomes a suitable blue for
laundry. It is safe to use as it is not harmful to the fabrics. Bluing is to
be done only when the fabric is free from soap or detergent used for washing
the cloth. Ultramarine blue being not insoluble in water, the coloring
matter is held in suspension, and so the water must be stirred each time
before use.