Rajaram Soap and Ch. Works Hathras, Uttar Pradesh

Ultramarine pigments show many advantages when used in rubber compounds. The shades obtained are bright at various pigmentation levels and also quite fast to light. The pigment being insoluble in nature does not bleed or fade in stretchable rubber uses.   Advantages of using Ultramarine in Rubber:   Low Cost Easy Dispersion Attractive Colour High Light Fastness High Heat stability  

Coloration of Plastics is a key process which is mainly carried out to improve Plastics’ aesthetics and to enhance Plastics’ performance in use. From the very beginning of the history of Plastics, inorganic pigments have very well fitted into the coloration of such material due to their excellent general: Compatibility with all kinds of polymers Easy dispersion Maintenance of polymer’s dimensional stability Heat fastness Light and weather fastness Opacity Insolubility, avoiding migration tendencies Moreover, and with a few well-known exceptions, inorganic pigments are generally safe in processing and final use and environmentally friendly too.  

Ultramarine Blue has application in the paper manufacturing process namely the whitening of cellulose pulp and the coloration of the outside coating on colored papers.

Detergents incorporate Ultramarine Blue in their formula to obtain best whiteness results and to correct the natural or produced by wear, yellowing in textile fibres. This formula typically contains blue granules that have the Ultramarine Blue already incorporated. Ultramarine Blue is able to enhance the whiteness of textile fibres because it absorbs yellow wavelengths and does not reflect them, making the fabric look whiter due to such an effect. To enhance the whiteness of fabrics optical whiteners are also used but exposition to sunlight degrades them. Optical whiteners absorb invisible ultraviolet light, emitting visible light and thus increasing the total reflectance of the white surface, giving a luminous appearance. Ultramarine Blue works differently by absorbing the yellow light, avoiding its reflection. Ultramarine Blue is caught mechanically in the fibre structure, meaning that a physical introduction in the fabric is done, while the optical whitener has a surface incorporation. Because of the lowest particle size of the Ultramarine Blue and its water affinity it can be eliminated with further washings, forming a little structure with repeated washes and rinses. For this reason and for its high light resistance Ultramarine Blue is better than optical whiteners for this application, and moreover they tend to degenerate optically, when they are exposed to light, producing by themselves yellow hues. There is a synergy between optical whiteners and Ultramarine Blues since both complement their actions and give good results. They are two products totally compatible that join their whitening effects and cover a wider spectrum under solar and artificial light. The same principle that explains the use of Ultramarine Blue in detergents is applicable to the use of such pigment in laundry bar soaps. In the latter Ultramarine Blue is incorporated in a typically blue-colored bar soap which is used to wash fabrics. The friction of the bar soap onto the textile: on one side, it cleans the fabric thanks to the surfactants it contains; on the other side it allows small Ultramarine Blue particles to be mechanically captured by the fibre structure and absorb yellow wavelengths.