| 摘要 |
Concentrated aqueous dye solutions, comprising a) 7 to 30% by weight of a dye of the formula (see formula 1) in which K is a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series, b) at least 0.1 but less than 1 mole of 3-diethylamino-1-propylamine, per mole of dye of the formula (1), c) a quantity of a hydroxyalkylamine such that together 1.5 to 5 moles of the components b) and c) are present per mole of dye, and d) if desired, other additives, the dye solutions being distinguished by a good storage stability and are suitable, in particular, for dying paper.
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