发明名称 |
Storable formulations of cationic dyes with oxidizing agent as stabilizer |
摘要 |
Liquid formulations of mixtures of cationic dyes frequently have a very short storage life. As a consequence, these formulations give rise to customer complaints concerning incorrect dyeing strengths and hues and concerning isoluble constituents. It has now been found according to the invention that powder formulations and in particular liquid formulations of cationic dyes or of mixtures of these dyes can be stabilized by adding selected oxidizing agents.
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申请公布号 |
US4765797(A) |
申请公布日期 |
1988.08.23 |
申请号 |
US19870058983 |
申请日期 |
1987.06.08 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
HAEHNKE, MANFRED;ONG, SIERLING;HOHMANN, KURT |
分类号 |
C09B67/22;C09B67/32;C09B67/34;(IPC1-7):C09B67/32 |
主分类号 |
C09B67/22 |
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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