发明申请
US20070271712A1 Process for Dyeing Cellulosic Fibre Materials With at Least Two Vat Dyes 审中-公开
用至少两盏染料染色纤维素纤维材料的方法

Process for Dyeing Cellulosic Fibre Materials With at Least Two Vat Dyes
摘要:
A process for dyeing cellulosic fibre materials, wherein the fibre material is brought into contact with at least two dyes from the group of formulae (1), (2), (3) and (4) wherein A is hydrogen or a radical of formula (5), R1, R2, R3 and R4 are each independently of the other halogen, C1-C4alkyl, C1-C4alkoxy, nitro, benzoylamino which is unsubstituted or substituted in the phenyl ring, or unsubstituted or substituted amino, n, m, r and s are each independently of the others the number 0, 1, or 2, and p is the number 0, 1, 2, 3 or 4, produces level, tinctorially strong dyeings.
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