Salt-Free Dyeing of Cotton Fabric Using 3-Chloro-2-Hydroxypropyltrimethyl Ammonium Chloride by Pad-Irradiate-Pad-Steam Process, and Prediction of Its K/S Value by LS-SVM

ABSTRACT

Based on conventional pad-dry-pad-steam (PDPS) process, 3-chloro-2-hydroxypropyltrimethylammonium chloride was used as an etherifying agent to cationize cotton by the pad-irradiate process by microwave and then the cationized fabric was salt-free dyed by the pad-steam process. The results showed that the dyeability of the cationized fabric with salt-free reactive dye was nearly equivalent with conventional PDPS process. This study also developed a model to predict K/S value of dyed cotton fabric based on least squares support vector machine (LS-SVM). The simulation results based on actual run data demonstrated that the model using LS-SVM has high prediction accuracy and can be employed to predict the K/S value of dyed fabric using pad-irradiate-pad-steam process.

摘要

在传统的轧-烘-轧-蒸（PDPS）工艺基础上，以3-氯-2-羟丙基三甲基氯化铵为醚化剂，采用轧-微波辐照工艺对棉进行阳离子化，然后采用轧-蒸工艺对阳离子化织物进行无盐染色。结果表明，阳离子化织物无盐活性染料染色的染色效果与传统PDPS工艺基本相当。基于最小二乘支持向量机（LS-SVM），本研究建立了染色棉织物K/S值的预测模型。基于实际染色数据与预测结果表明，利用LS-SVM建立的模型具有较高的预测精度，可用于预测轧-微波辐照-轧-蒸工艺染得织物的K/S值。

KEYWORDS:

• Reactive dye
• salt-free dyeing
• model
• cationized fabric

关键词:

• 活性染料
• 无盐染色
• 模型
• 阳离子化织物

Acknowledgments

The authors are particularly grateful to the College of Chemistry and Chemical Engineering and Biotechnology of Donghua University for the kind assistance and valuable contribution.

Additional information

Funding

Authors would like to thank financial support provided by the Major Program of National Science and Technology of China (135 Program, Grant No.2017YFB0309700).