Pasty or solid dye melts: disperse dye and nonionic and/or cationic surfactants
AssigneeGiba-Geigy Corporation
InventorsRainer H. Traber, Ulrich Strahm
Life of this patent
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Abstract
The invention relates to novel pasty or solid dye melts which contain, per 1 part of a sparingly water-soluble or water-insoluble dye whose melting point is higher than 150.degree. C., 2 to less than 5 parts of a nonionic surfactant with a melting point of 25.degree.-100.degree. C. and having an HLB value of 13 to 19 or of a cationic surfactant with a melting point of 25.degree.-100.degree. C., or a mixture of said surfactants, to a process for their preparation and to the use of said melts, preferably for dyeing and printing polyester materials, to give level dyeings having a high degree of exhaustion.
Claims10
A pasty or solid dye melt which contains, per 1 part of a disperse dye for which the melting point is higher than 150.degree. C., 2 to less than 5 parts of a nonionic surfactant with a melting point of 25.degree.-100.degree. C. and having an HLB value of 13 to 19, wherein the nonionic surfactant is a reaction product of 5 to 100 mol of ethylene oxide and/or propylene oxide with 1 mol of a compound selected from the group consisting of
- a) a low molecular, aliphatic polyol,
- b) a saturated and/or unsaturated fatty alcohol of 8 to 22 carbon atoms,
- c) an alkylphenol containing 4 to 12 carbon atoms in the alkyl moiety,
- d) a hydroxybiphenyl,
- e) a saturated and/or unsaturated fatty amine containing 8 to 22 carbon atoms,
- f) a saturated and/or unsaturated fatty acid containing 8 to 22 carbon atoms, and
- g) a saturated and/or unsaturated fatty acid (N,N-bishydroxyalkyl)amide or of a cationic surfactant with a melting point of 25.degree.-100.degree. C., or a mixture of said surfactants.
Dependencies are inferred from the claim text.