Preparation and Performance of Fluorescein Isothiocyanate⁃Labeled Fluorescent Starch and Polyvinyl Alcohol for Warp Sizing

作     者：LI Manli JI Zhihao ZOU Zhuanyong HU Qiaoling JIN Enqi 李曼丽;季志浩;邹专勇;胡巧玲;金恩琪

作者机构：Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang ProvinceShaoxing UniversityShaoxing 312000China Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China 

出 版 物：《Journal of Donghua University(English Edition)》 (东华大学学报（英文版）)

年 卷 期：2021年第38卷第5期

页      面：424-433页

学科分类：0821[工学-纺织科学与工程] 08[工学] 082101[工学-纺织工程] 

基　　金：National Natural Science Foundation of China(Nos.51573095 and 51873187) Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province,China(No.QJRZ1902) Technological Research Project for Public Welfare of Zhejiang Province,China(No.LGG21E030005) Postdoctoral Research Program of Zhejiang Province in 2021,China 

主　　题：fluorescence labeling fluorescein isothiocyanate(FITC) permeability coating property textile size 

摘      要：In order to solve the problems of low accuracy and poor variety adaptability of the current measurement method of the permeability and coating property of sizing paste in textile industry, taking starch and polyvinyl alcohol(PVA) as the representatives of the most commonly used textile sizes, various concentrations of fluorescent molecules fluorescein isothiocyanate(FITC) were used to label starch and PVA to prepare fluorescein(F)-starch and F-PVA fluorescent sizes with different degrees of labeling(DLs) for the first time, respectively. Then the starch and PVA derivatives were employed to size pure cotton warp yarns. After preparing the sections of the sized yarns, the permeability and coating percentage of starch and PVA paste to the yarns were calculated by using a fluorescence microscope and the Photoshop software, respectively. The results demonstrate that F-starch and F-PVA with appropriate DL of 0.791% and 0.161%, respectively, exhibit good fluorescence property and similar sizing performance to the sizing performance of unlabeled starch and PVA. It is considered that fluorescence labeling of sizing agents with fluorescein units can provide an innovative way for the accurate determination of the permeability and coating property of sizing paste to warp yarns.