Yan Li, Wei Li, Yuzhen Zhang
2005
Citations
0
Influential Citations
8
Citations
Journal
Dyes and Pigments
Abstract
Abstract 4,4′-Diaminodiphenylurea has been synthesized as a potential substitute for benzidine, by a reaction between urea and para -phenyldiamine in water. The synthesis is straightforward and economical, and produces a high quality product. The title compound was used to prepare direct dyes for cotton. The color and fastness properties of the dyed fabric were assessed, and the results showed that the dyes have good substantivity and light fastness.