Method for the preparation of aqueous dissolutions of a reduced sulfur color (Machine-translation by Google Translate, not legally binding)

摘要

Method for the preparation of aqueous solutions of a reduced sulfur dye characterized in that it involves treating the sulfur dye in an alkaline aqueous medium with reducing agents containing sulfur, dissolving in the aqueous medium a small but effective amount of hydrotopic agent thanks to which maintains concentration higher colorant and higher concentration of reducing agents without causing any precipitation or the formation of tar in the dye solution. (Machine-translation by Google Translate, not legally binding)