Reducing grinding time and compositions therefor

US4233026A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gerhard Hitschfel · Niedernhausen, DE
• Peter Jurges · Eppstein, DE
• Rudolf Munk · Frankenthal (Pfalz), DE

Key dates

• Filing date: Jul 17, 1979
• Grant date: Nov 11, 1980
• Expiry date: Jul 17, 1999

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06L4/664
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition containing a sparingly soluble or insoluble dyestuff which comprises, as a processing agent, from 0.5 to 50 percent by weight of the composition of at least one water-soluble non-ionic compound of the formula Y--O--Z--H wherein Y represents a hydrogen atom or a group of the formula ##STR1## (in which X is a carbon atom or an aromatic ring system having from 6 to 10 carbon atoms, and R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, represent hydrogen atoms, or alkyl or alkenyl groups, with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is other than a hydrogen atom and the total number of carbon atoms in R.sup.1, R.sup.2 and R.sup.3 is not more than 36); and Z represents a (C.sub.2 H.sub.4 O).sub.m or (C.sub.3 H.sub.6 O).sub.n group or a combination thereof (in which m and n, which may be the same or different, each represents an integer from 2 to 15), and which may additionally contain water, at least one water-soluble anionic compound of formula R.sup.4 --SO.sub.4 --A in which A represents an alkali-metal or ammonium cation and R.sup.4 --SO.sub.3 represents a group obtained by reacting a polyvinyl alcohol (having an average molecular w…