An Economical Dyeing Process for Cotton and Wool Fabrics and Improvement their Antibacterial Properties and UV protection

ABSTRACT

Environmental, economic concerns, and prolonged human exposure to solar ultraviolet radiation have created an increasing demand for natural dyestuff. A study on the cotton and wool fabrics functionality to achieve UV protection and antibacterial properties was carried out by aqueous extract of barberry roots and red onion skin as the natural dyes. The alkaloid berberine extracted from the fruits of Berberis vulgaris and flavonoids and anthocyanin from red onion skin (Alliumcepa L) are natural dyes with antibacterial activity, UV protection and available as waste materials. The properties of dyed wool and cotton fabrics with these two natural dyes and two dyeing methods (exhaustion and ultrasonic) such as their color fastness, color intensity, and antibacterial efficacy ultraviolet protection factor (UPF) were investigated in this research. The results confirmed that the high level of antibacterial activity and (UPF) values of dyed wool fabrics with barberry roots and red onion skin and they are more than the dyed cotton fabrics in the same condition and has better result with the ultrasonic method. So by combining two dyestuff and ultrasonic method, on cotton dyeing, the level of antibacterial activity and UPF value increased.

摘要

环境、经济关注和人类暴露于太阳紫外线辐射（UVR），对天然染料产生了越来越大的需求。以小檗根和红洋葱皮为天然染料，研究了棉织物和羊毛织物的紫外防护和抗菌性能，从Berberisvulgaris和黄酮类物质和花青素F中提取的生物碱小檗碱。红洋葱皮是一种具有抗菌、防紫外线、可作为废弃物的天然染料。研究了这两种天然染料染色的羊毛和棉织物的性能，以及它们的染色牢度、颜色强度和抗菌效果紫外保护因子（UPF）两种染色方法。结果表明，在相同条件下染色的棉织物具有较高的抗菌活性和（UPF）值，其染色性能优于染色棉织物。因此，将两种染料和超声波法相结合，在棉织物上染色，抗菌活性和紫外线防护因子值均提高。

KEYWORDS:

• Barberry root
• UV protection
• onion
• ultrasonic
• antibacterial property
• cotton
• wool

关键词:

• 小檗根
• 紫外线防护
• 洋葱
• 超声波
• 抗菌性能
• 棉花
• 羊毛