拼混活性染料染色多组分定量分析方法  

Multi-component quantitative analysis method for dyeing with reactive dyes

作　　者：郭玉秋 钟毅[1,2,3] 徐红 毛志平 GUO Yuqiu;ZHONG Yi;XU Hong;MAO Zhiping(College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China;Key Laboratory of Science&Technology of Eco-Textile,Ministry of Education,Donghua University,Shanghai 201620,China;Innovation Center for Textile Science and Technology,Donghua University,Shanghai 201620,China;Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Taian,Shandong 271000,China;National Engineering Research Center For Dyeing and Finishing of Textiles,Shanghai 201620,China)

机构地区：[1]东华大学化学与化工学院,上海201620 [2]东华大学生态纺织教育部重点实验室,上海201620 [3]东华大学纺织科技创新中心,上海201620 [4]国家先进印染技术创新中心,山东泰安271000 [5]国家染整工程技术研究中心,上海201620

出　　处：《纺织学报》2023年第7期141-150,共10页Journal of Textile Research

基　　金：山东省重点研发计划项目(2022ZDPT02)。

摘　　要：将拉曼光谱技术与化学计量法(偏最小二乘法)结合,建立了一种简便、灵敏、精确的多组分定量分析方法,可对混合液体多组分同时进行定量分析,进而有效提高织物色光稳定性和产品质量。首先根据拉曼光谱特征峰与染料质量浓度之间的线性关系测定待测组分的检测极限,确定定量成分适用的质量浓度范围;然后构建多组分混合体系定量分析模型;最后通过检测双乙烯砜活性基结构的活性染料拼混染色在吸附过程中各组分质量浓度变化和纤维上染百分率,进一步评价染料的配伍性。结果表明:模型的拟合值与标准值之间的相关系数均大于0.99,内部交互验证均方根误差和预测均方根误差值均小于0.2,通过本文方法构建的多组分定量分析模型具有较高的准确性,且拼混的染料结构和质量比会影响单一组分的上染过程。Objective Color matching dyes in the dyeing process has been attracting more attention,and more research efforts have been made to explore the principle and technology of color matching dyeing.The key to study the dyeing principle and promote the dyeing technology is to monitor the change of dye concentration in the dyeing process.At present,there is a lack of a mature and systematic online detection method and detection equipment.The difficulty lies in how to achieve fast and accurate online detection which offers strong applicability and a wide range of concentration detection.Method A simple,sensitive and accurate multi-component quantitative analysis method was established by combining Raman spectroscopy with chemometrics method(partial least squares method),for simultaneous quantitative analysis of multi-components in mixed liquids.This detection method was adopted to construct a rapid detection and quantitative analysis model for the concentration of each component in the mixed dye solution of Reactive Violet 4(RR4),Reactive Orange 4(RY4)and Reactive Black 5(RB5),and the process of dyeing cotton fabrics with different concentration ratios was monitored online.The detection limit of the components to be tested was determined according to the linear relationship between the characteristic peaks of Raman spectroscopy and the dye concentration,and the applicable concentration range of the quantitative components was determined.Results The detection ranges of RR4,RY4 and RB5 were 0.08-15 g/L,0.08-20 g/L and 0.05-20 g/L,respectively(Fig.1 and 2).The quantitative analysis model of multi-component mixed system was constructed.The results showed that the correlation coefficient(R^(2))between the fitting value of the model and the standard value was greater than 0.99,and the values of root mean square error(RMSECV)and root mean square error of prediction(RMSEP)were smaller than 0.2.The multi-component quantitative analysis model constructed by this method offered high accuracy.Finally,the compatibility of dyes was fu

关 键 词：拉曼光谱技术 多组分定量分析模型 活性染料 拼色染色 棉织物 

分 类 号：O657.37[理学—分析化学] TS193[理学—化学]