发明名称 |
Process and composition of sulfur dyes |
摘要 |
A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.
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申请公布号 |
US6302925(B1) |
申请公布日期 |
2001.10.16 |
申请号 |
US19990447127 |
申请日期 |
1999.11.22 |
申请人 |
CLARIANT FINANCE (BVI) LIMITED |
发明人 |
HIPP J. MICHAEL;CARLOUGH MARK S.;SHERRILL WILLIAM T.;STAHALA PETER |
分类号 |
D06P1/22;D06P1/30;D06P3/60;D06P3/82;(IPC1-7):C09B67/00 |
主分类号 |
D06P1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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