发明名称 |
DYEING LEATHER: EXHAUSTION PROCESS USING COMBINATION OF PIGMENT DISPERSION AND AQUEOUS SOLUTION OF WATER-SOLUBLE SULFUR DYE |
摘要 |
The process for dyeing leather by the exhaust method comprises allowing a pigment dispersion and an aqueous solution of sulfur dye to act on the conventionally pretreated leather in one step or in succession. It affords a high depth of shade and a high brilliance which are not achieved by using the pigment or the sulfur dye on its own.
|
申请公布号 |
US5240463(A) |
申请公布日期 |
1993.08.31 |
申请号 |
US19920827442 |
申请日期 |
1992.01.29 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
WEINHEIMER, PETER;AMBRECHT, NORBERT;SCHLOESSER, LOTHAR |
分类号 |
C09B67/46;D06P1/44;D06P3/32 |
主分类号 |
C09B67/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|