Ultramarine Pigments

Ultramarine is the most complex of the mineral pigments, a complex sulfur-containing sodio-silicate (Na_8-10Al₆Si₆O₂₄S_2-4) containing a blue cubic mineral called lazurite.

Ultramarine Pigments have been used in paints for last fifteen hundred years. But, as a colorant, these have been used for much longer time. In the ancient period, these pigments were manufactured from natural gemstone lapis-lazuli which is one kind of limestone.

Chemically, these pigments are the most complex out of all inorganic class pigments. Ultramarine Pigments consist of sodium aluminum, silicate lattices and these pigments have polysulphide (-S-S-S) chains.

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Range of Applications	What Ultramarine is used to color	Characteristics of Ultramarine that make it useful
Paints	Oil, water and acrylic paints; water-based emulsion paints, architectural coatings, floor paints, sealants.	Light fastness, heat resistance & non-migratory. But, in acidic atmosphere it can be decolorised.
Domestic Applications	Tooth paste, eyeliner, pencil & crayon, detergents, lipstick, food packaging & containers, children paints, mineral water bottles, toilet soaps.	These pigments are not toxic in nature.
Inks and coatings	Leather and paper coatings, coloring papers, printing inks, textile printing inks.	These pigments have shading and tinting effect like most of the other colorants. Ultramarine pigments can be mixed with other colorants to generate a wide range of colors.
Plastics & Fibers	Plastic pipes, thermoplastics, plastic film and containers, vinyl and linoleum floor coverings, natural and synthetic rubbers and synthetic fibers.	Ultramarine does not cause shrinkage, distortion or warping of polymers in which it is incorporated (it gives "dimensional stability").
		Ultramarine does not "leak" poisonous effluent in a landfill site in which the plastics or fibers are dumped.

Ultramarine Pigments are classified into two major groups:

Ultramarine Violet -
Ultramarine Violet Pigments are very safe at the time of their applications and non-hazardous, non-toxic in nature. These pigments are used for a number of applications as colorants. The main uses of these pigments are for printing inks, paints, plastics and cosmetics. Ultramarine violet pigments are used for artist's colors, industrial finishes, paper & plastics, decorative paints and all kind of color corrections. These pigments are totally non-bleeding, very high heat resistance and can be dispersed very easily.




Ultramarine Blue -
Ultramarine Blue are non-hazardous, safe blue color pigments. These pigments have wide range of applications. Full control can be imposed on their synthetic manufacturing process and close control can be kept over theirs physical, chemical and color characteristics. This makes possible the wide range of applications of these pigments. These pigments are used in manufacturers of plastic, printing inks, cosmetic and many other industries. These blue ultramarine pigments are also environment friendly.

These blue ultramarine pigments have wonderful heat resistance capacity up to 350 degree C, these are of non-bleeding nature, having superb lightfastness and don't cause any distortion in polyolefins.