Nirbhay Rasayan Pvt. Ltd. Manufactures Blue Dispersion Pigment. Nirbhay Rasayan Pvt. Ltd. Is the flagship company of the Kothari Group of Industries. Nirbhay Rasayan Pvt. Ltd. Offers varied Copper Phthalocyanine and Phthalo pigments. The Blue Dispersion Pigment is also known as Kemikron Blue DB. The Blue Dispersion Pigment is a blue colorant used for detergent powder, soaps and liquids.