| abstract |
A process for the preparation of low-salt water-soluble dyes, characterized in that the water-soluble dyes from their aqueous solutions and / or dispersions by adding salts at temperatures from about 40 ° C to about 250 ° C, at a pressure of about 10 Torr to about 760 Torr, are volatile, salted out, the dyes isolated and the volatile salts volatilized during the drying process. |