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Dyeing and Functional Finishing of Cotton Fabric Using Henna Extract and TiO2 Nano-sol

机译：指甲花提取物和TiO2纳米溶胶对棉织物的染色和功能性整理

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A new approach for dyeing and functional finishing for cotton fabric using Henna extract and TiO2 nano-sol was investigated. In this study, 3-chloro-2-hydroxy propyl trimethylammonium chloride was used to substitute metallic mordants (heavy-metal salts) in pre-treating cotton fabric. This eventually will prevent heavy metal pollution as well as obtain dyeing without addition of salt. TiO2 nano-sol was prepared by sol-gel method using different amounts of tetraisopropyl orthotitanate (TTIP) and applied on cationized cotton fabrics using the same finishing formulation and treatment sequence. Treated fabrics were then dyed with Henna extract at different dyeing temperatures (60 degrees C, 80 degrees C, and 90 degrees C). TiO2 nanoparticles were characterized by transmission electron microscopy (TEM). The chemical and morphological structures of the dyed fabrics were characterized by attenuated total reflection-Fourier transform infrared (ATR-FTIR), scanning electron microscopy (SEM), and X-ray diffractometry (XRD). Color strength, fastness properties (washing, rubbing, and light), UV-blocking, antibacterial activity, and tensile strength were investigated. Samples treated with TiO2 and dyed with Henna extract exhibited outstanding enhancement in both the UV protection and antibacterial efficacy with minimal impact on color depth and tensile strength. Enhancement or decrement in the UV protection, antibacterial activity and dyeing properties are governed by the amount of TTIP and the dyeing temperature.
机译：研究了一种使用指甲花提取物和TiO2纳米溶胶对棉织物进行染色和功能整理的新方法。在这项研究中，使用3-氯-2-羟丙基三甲基氯化铵代替棉织物预处理中的金属媒染剂（重金属盐）。最终将防止重金属污染，并且无需添加盐即可染色。 TiO2纳米溶胶是通过溶胶-凝胶法使用不同量的原钛酸四异丙酯（TTIP）制备的，并以相同的整理配方和处理顺序应用于阳离子化棉织物上。然后将处理过的织物用指甲花提取物在不同的染色温度（60摄氏度，80摄氏度和90摄氏度）下染色。 TiO2纳米粒子通过透射电子显微镜（TEM）表征。染色织物的化学和形态结构通过衰减全反射-傅立叶变换红外光谱（ATR-FTIR），扫描电子显微镜（SEM）和X射线衍射仪（XRD）进行表征。研究了色强度，坚牢度性能（洗涤，摩擦和光照），紫外线阻隔，抗菌活性和拉伸强度。用TiO2处理并用指甲花提取物染色的样品在紫外线防护和抗菌功效方面均表现出显着增强，并且对色深和拉伸强度的影响最小。紫外线防护，抗菌活性和染色性能的增强或降低取决于TTIP的量和染色温度。

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