Verfahren zur Herstellung stabiler, konzentrierter Dispersionen von basischen Farbstoffen

• Main Authors: KAISER,ANTON,DR, LANG,WALTER,DR, JEANNERET,REMY,DR
• Format: Patent
• Language: German
• Published: 15.12.1970
• Edition: 1
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INKS; LAKES; LAUNDERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; USE OF MATERIALS THEREFOR; WOODSTAINS

1,222,945. Dispersions of basic dyes. CIBA Ltd. 27 Feb., 1969 [1 March, 1968], No. 10618/ 69. Heading D1B. Dispersion of water-soluble basic dyes in organic liquids at least partially miscible with water or in a mixture of such a liquid and water. The dispersion medium may be a polyhydric alcohol or, ether thereof or a water soluble.polyether, water-soluble liquid amide, lactam, lactone, or nitrile which may contain a hydroxyl group, a carboxylic acid ester, sulpholan, dimethyl sulphoxides, dioxane or tetrahydrofuran. Preferably the dispersions contains less than 5% of water and may contain a non-ionic or cationic surfactant and/or an anti-foaming agent. The dispersions are obtained by mechanical grinding e.g. in a ball mill or a sand mill, preferably to a size of 0.1 to 20Á preferably contain 10-50% by weight of the dyestuff and have a viscosity of 100 to 250 cp at 20‹C.