| 摘要 |
A process for dyeing a mixed fibrous substrate comprising applying to the substrate, a) at least one disperse dye, b) at least one copper - containing direct or reactive dye, preferably in a sufficient amount to produce a dyeing greater than a 1/1 standard depth; c) a complexing agent having a stability constant (K-value) with the metal of the direct or reactive dye of from 6 to 17 inclusive; d) a lignin sulphonate dispersing agent; and e) an oxidizing agent capable of converting copper (I) to copper (II) at a temperature of 100 DEG -130 DEG C. at a pH of 5-7 in the process for dyeing the mixed substrate.
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