| 摘要 |
Aqueous solutions containing, each percentage being based on the weight of the aqueous solution, a) from 5 to 20% by weight of the dye of the formula <IMAGE> (calculated as free acid) where cat(+) is a mixture of cations comprising from 5 to 50 mol % of lithium ions, from 5 to 40 mol % of diethanolammonium ions and from 20 to 90 mol % of triethanolammonium ions, and b) from 0 to 15% of urea, are useful for dyeing paper stock.
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