Dyeing Mechanism of Natural Plant Dye R. Coptidis on Silk

摘要：

The dyeing mechanism of silk fabric with natural plant dye R. coptidis was discussed in terms of the thermodynamic and kinetic factors, including standard affinity, enthalpy change, entropy change, dyeing rate, diffusion coefficient and activation energy of the diffusion. The results showed the adsorption isotherm of R. coptidis on silk fabric belonged to Langmuir type. And the analysis of dyeing thermodynamics showed adsorption of rhizoma coptidis on silk fabric was an exothermic process, when dyed at higher temperature, lower affinity and less dye uptake were obtained. However higher temperature increased the initial dyeing rate and increased the diffusion coefficient.

关键词： R. coptidis Silk Dyeing mechanism Thermodynamics Kinetics

作者: KE Gui-zhen YU Wei-dong XU Wei-lin

作者单位: Wuhan University of Science and Engineering, Wuhan 430073, P. R. China;Textile Materials and Technol Textile Materials and Technology Lab., Donghua University, Shanghai 200051, P. R. China;Wuhan Univer

会议类型: 国际会议

会议名称: 第六届中国国际丝绸会议暨第二届国际纺织高层论坛(The 6th China International Silk Conference and The 2nd International Textile Forum)

会议地点: 苏州

会议语种:英文

页码: 250-253

在线出版日期: 2007-09-13（万方平台首次上网日期，不代表论文的发表时间）