Dyeing preparations, which are soluble in cold water, of anionic dyestuffs

US4082505A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Konrad Nonn
• Karlheinz Wolf · Leverkusen, DE
• Reinold Hornle

Key dates

• Filing date: Oct 10, 1975
• Grant date: Apr 4, 1978
• Expiry date: Oct 10, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0072
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Solid dyestuff preparations at most 10 microns, which contain an anionic dyestuff as the guanidinium salt, of a particle size, a surface-active agent and optionally further customary additives are soluble in cold water.