ABSTRACT
A novel thickening agent from wild taro corms was investigated in the preparation of the printing paste for the screen-printing of silk fabric with acid dye. The concentrations of thickening agent, acid dyestuff, and citric acid and steaming fixation time were explored. Printed silk fabric quality was evaluated by determining different parameters: color values (L*, a*, b*), color strength (K/S), color fastness, and physical properties, whereas print paste quality was evaluated by measuring the viscosity. The results revealed that the printing paste, comprising the thickening agent prepared from the modified starch of wild taro corms, can be applied for printing silk fabric using acid dye. The fastness properties of the printed samples were found to be fair to good. The printed fabric also had decreased tensile and tear strength compared to the original fabric. An increase in stiffness (bending length) of printed silk fabric also occurred. The overall study showed that using the new proposed thickening agent was confirmed at the semi-industrial scale.
摘要
以野生芋头球茎为原料, 研制了一种新型增稠剂, 用于丝织物酸性染料丝网印花浆料的制备. 探讨了增稠剂、酸性染料、柠檬酸的浓度和汽蒸固色时间. 通过确定不同的参数来评估印刷丝绸的质量: 颜色值 (L*、a*、b*)、颜色强度 (K/S)、色牢度和物理性能, 而通过测量粘度来评估印刷膏的质量. 结果表明, 由野生芋头球茎变性淀粉制备的增稠剂组成的印花浆料可用于酸性染料印花真丝织物. 印刷样品的牢度性能被认为是一般到良好的. 与原始织物相比, 印花织物的拉伸强度和撕裂强度也有所降低。印花丝绸的刚度 (弯曲长度) 也有所增加. 总体研究表明, 使用新提出的增稠剂已在半工业规模上得到证实.
Acknowledgments
Authors gratefully acknowledge the financial support of the Thailand Toray Science Foundation (TTSF): Science & Technology Research Grant. Authors thankful to Rajamangala University of Technology Phra Nakhon (RMUTP), Thailand, for supporting this research.
Disclosure statement
No potential conflict of interest was reported by the author(s).