纺织学报 ›› 2011, Vol. 32 ›› Issue (3): 82-85.

• 染整与化学品 • 上一篇    下一篇

基于共轭梯度法的纱线染色配方预测优化算法

陈典红;李海明;徐新胜   

  1. 中国计量学院
  • 收稿日期:2010-03-15 修回日期:2010-07-14 出版日期:2011-03-15 发布日期:2011-03-15
  • 通讯作者: 陈典红

Dyeing recipes prediction optimization for yarn color matching based on conjugate gradient method

CHEN Dianhong; LI Haiming; XU Xinsheng   

  1. China Jiliang University
  • Received:2010-03-15 Revised:2010-07-14 Online:2011-03-15 Published:2011-03-15

摘要:

为提高纱线染色配方预测的准确性和稳定性,在Kubelka-Munk理论基础上,结合CIE 1976 L* a* b* 均匀颜色空间及CIELAB色差公式,提出了以共轭梯度法为基础的染色配方预测优化方法,详细推导出共轭梯度法带约束的配方预测目标函数。利用自开发的测配色软件和美能达CM2600D分光测色仪,选用D65光源,做了大量的单纺纱线测配色实验。实验结果表明,该染料配方预测优化算法计算的配色结果与标准色接近,色差小,与染料配方初值无关,稳定、可靠、收敛性强、重复度高。

Abstract:

In order to improve the accuracy and stability of the predicted yarn dyeing recipes, the conjugate gradient-based optimization method of dyeing recipes prediction is proposed for the color matching on the basis of the Kubelka-Munk theory, CIE 1976 L * a * b * uniform color space and the CIELAB color difference formula. The color matching objective function with constraints for dyeing recipes prediction optimization is deduced. Finally, through the self-developed color measuring & matching system and Minolta CM2600D (a spectral color measurement instrument) with D65 light source, a lot of experiments are carried out for yarn color measuring and matching. The experimental results show that the colors obtained by calculated dyeing recipes using the above-mentioned method are close to the standard ones of yarn samples and the color difference between the optimization results and actual dying recipes is little. The optimization results have nothing to do with the initial value, and the calculation process is stable and reliable, and has strong convergence and high reproducibility.

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