Description: Ultramarine Blue is an inorganic pigment whose colour has been classified as Pigment Blue 29/C.I. 77007 by the Colour Index System. Chemically it is a sodium aluminum sulphosilicate.
Ultramarine Blues are the most widely used blue pigments because of their unique colouristic and performance attributes. Ultramarine Blues provide a unique reddish undertone blue colour and are able to easily tint whites, greys and blacks with a bluish undertone, to enhance the best of such colours. Moreover, Ultramarine Blues lack metamerism; therefore, they do not change colour in function of the illuminate.
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In addition to this very specific reddish blue shade, Ultramarine Blue is an excellent white corrector that neutralizes yellowish shades. This whitening effect is widely appreciated in many fields of application e.g. plastics, coatings, detergents.
Ultramarine Pinks provide very similar performance to Ultramarine Violets, with even more reddish shade.
Ultramarine Pink is mostly used to reach pinky shades in Plastics. Its low tinting strength can become advantageous vs organic pigments because it provides a very transparent pink shade with little colour saturation. It is also very suitable to combine with “Effect pigments” to reach unique colour effects too.
Ultramarine Violets are mostly used in Plastics to reduce the yellowish tendency of some resins and to provide brightness to white-coloured Plastics. They can also be used to provide a violet shade to all sort of Plastic parts. As Ultramarine Blues, they lack metamerism; therefore, they do not change color in function of the illuminate.
Ultramarine Violets’ properties are very similar to Ultramarine Blues’ in terms of:
Compatibility with all kinds of polymers
Maintenance of polymer’s dimensional stability
High heat fastness (300ºC, 5 min)
Excellent light fastness
Very good weather fastness, especially in the case of well-stabilized to UV light formulations
Good resistance to alkalis (without the presence of high % of Calcium ions)
Insolubility, avoiding migration tendencies
Transparency, what make them very suitable to combine with “Effect and Metallic pigments” to reach unique color effects
Safe product in processing and final-use