Question

How can we obtain a coloured component Dye from blue and black ink

Answer 1

The blue ink (or black ink) used; in fountain pens is a liquid mixture. It is a mixture of a dye in water. This dye is the colored component of the ink (which gives it a blue or black color). We can separate the colored component of ink (or dye from ink) by the process of evaporation.
Precaution that should be taken is that ink should not be heated directly as it is decomposed by the high temperature, so we use a water bath for evaporating ink.

Answer 2

HEY MATE!__________here is your answer.....

We can obtain a coloured component dye from blue and black ink-

By the process of evaporation.

hope my answer helps u..