A dying procedure (Machine-translation by Google Translate, not legally binding)

摘要

A process for dyeing fibers, in which a fibrous body is brought into contact with a dye solution, characterized by steps of incorporating into the solution, as dye-leveling agents, the compounds of the following formula: ** (See formula) ** wherein R is an alkyl group containing from 8 to 22 carbon atoms, x is an alkali metal and R 'is an aliphatic hydrocarbon radical with 1 to 8 carbon atoms. (Machine-translation by Google Translate, not legally binding)