丝绸耐雕-酸性棕BN脱铬方法

DISCHARGE RESISTANCE OF SILK-DECHROMIZATION OF ACID DYE BROWN BN

采用草酸脱铬剂将酸性染料棕ＢＮ（ 国外） 脱铬，然后用中等极性的丁醇萃取配位基，再经ＩＲ、ＮＭＲ 、ＭＳ 方法测定剖析酸性染料棕ＢＮ 结构和母体结构，为进一步研究丝绸。

Acid dye brown BN(imported) is dechromized with oxalic acid dechroming agent, then dentate is extracted with butyl alcohol with moderate polarity. The structure of acid dye brown BN and the precursor are de_termined and analyzed by IR. NMR and MS, so as to provide a base for further study of dyeing of silk with metal complex dyes.