Color, Fastness, and Antimicrobial Properties of Wool Fabrics Dyed with Helichrysum Arenarium Subsp. Aucheri Extract

ABSTRACT

Natural dyestuffs are evaluated as innovative natural sources to color the fabric and give antibacterial properties in the textile industry. In this study, methanol extracts of Helichrysum arenarium subsp. aucheri were used as natural sources in wool fabric dyeing. Aluminum potassium sulfate (KAl(SO₄)₂.12H₂O), copper sulfate (CuSO₄.5H₂O), and iron sulfate (FeSO₄.7H₂O) metal salts were used in the pre-mordanting process. The dyeing process was carried out in mordant and non-mordant fabrics at 25% and 50% concentrations. In this experiment, fastness values are ranked between medium and good grades. The point that should be especially emphasized is that the un-mordanted and dyed samples’ fastness values are acceptable. The disc diffusion method was applied to determine the antibacterial effect of extracts against Staphylococcus aureus ATCC 25923 and gram-negative Escherichia coli ATCC 25922. The methanol extract obtained from the ultrasonic water bath has shown the most powerful antibacterial effect against S. aureus ATCC 25923 with a 15.8 zone diameter. The dyed wool fabrics demonstrated excellent antimicrobial activity (reduction rates: w38.4e100) against two different bacteria according to AATCC 100 method.

摘要

天然染料被认为是纺织工业中用于织物着色和抗菌性能的创新性天然资源. 本研究以沙蚕亚种水芹甲醇提取物为天然原料，对羊毛织物进行染色. 采用硫酸铝钾（KAl（SO4）2.12H2O）、硫酸铜（CuSO4.5H2O）和硫酸铁（FeSO4.7H2O）金属盐进行预媒介化. 在25%和50%浓度的媒染剂和非媒染剂织物上进行染色. 在这个实验中，牢度值在中等和良好等级之间. 特别需要强调的是，未经媒染剂和染色的样品的牢度值是可以接受的. 采用纸片扩散法测定提取物对金黄色葡萄球菌ATCC 25923和革兰阴性大肠杆菌ATCC 25922的抑菌作用. 超声波水浴法提取的甲醇提取物对金黄色葡萄球菌ATCC25923的抑菌作用最强，抑菌区直径为15.8. 根据AATCC-100法，染色后的羊毛织物对两种不同的细菌具有良好的抗菌活性（还原率:w38.4e100）.

KEYWORDS:

• Helichrysum arenarium subsp. aucheri
• AATCC 100
• wool fabric
• natural dyeing
• antibacterial activity

KEYWORDS:

• 关键词
• 沙蚕亚种欧切里
• 羊毛织物
• 天然染色
• 抗菌活性

Acknowledgments

The study was carried out with the financial support of GRU-BAP (The Scientific Research Committee of Giresun University, Project No. FEN-BAP-A-150219-16). The authors are thankful to Assist. Prof. Rena Huseyinoglu and Assist. Prof. Emriye Ay for reading the manuscript and for his valuable comments.