Amendments of the Structural and Physical Properties of Cotton Fabrics Dyed with Natural Dye and Treated with Different Mordants

ABSTRACT

In the present work, cotton fabrics were dyed with natural dye extracted from the barks of a plant named Calligonum comosum. The dyed fabrics were mordanting with four mordants (potassium aluminium sulphate, black eco-crumb, ferrous chloride, and ferrous sulphate) applied separately. The effect of the mordants was described by XRD, FT-IR, SEM, DSC and TGA techniques. From the obtained results, various bands ratio displayed differences was observed; FT-IR shows a decrease in O-H band intensity; SEM images illustrate that the fabric was firmly woven. Thermal results propose the improvement of the thermal molecular mobility of the cellulose molecules. The evaluation of antimicrobial activity was tested using the modified streak method. The data indicated that the dyed and treated cotton fabrics with ferrous chloride and ferrous sulphate mordants have higher crystallinity indices in agreement with the obtained thermal data and exhibited higher thermal stability as well as expressively altered the morphological structure of cotton fabrics, and imparted a series of functionalities including; antioxidant and antibacterial properties to cotton fabrics.

摘要

在本研究中，棉织物用天然染料染色，这种染料是从一种名为沙拐枣的植物树皮中提取的染色后的织物分别用四种媒染剂（硫酸铝钾、黑生态粉、氯化亚铁和硫酸亚铁）进行媒染剂处理通过XRD、FT-IR、SEM、DSC和TGA等测试手段，对所制备的媒染剂进行了表征结果表明，织物的不同带比表现出差异红外光谱显示O-H带强度有所下降扫描电镜图像显示织物编织牢固热结果表明纤维素分子的热分子迁移率有所提高用改进的条纹法进行抗菌活性评价结果表明，用氯化亚铁和硫酸亚铁媒染剂对棉织物进行染色和处理后，其结晶度指标与热数据一致，具有较高的热稳定性，并明显改变了棉织物的形态结构，赋予了一系列的功能包括对棉织物的抗氧化和抗菌性能.

KEYWORDS:

• Cotton fabrics
• Calligonum comosum plant
• mordants
• structural and morphological configurations
• thermal analysis
• antimicrobial activity

关键词:

• 棉织物
• 丛生愈伤组织
• 媒染剂
• 结构和形态结构
• 热性能
• 抗菌活性