Department of Organic Colorants, Institute for Color Science and Technology, Tehran, P.O. Box: 16765-654, Iran.
Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
Environ Sci Pollut Res Int. 2023 Dec;30(58):122262-122273. doi: 10.1007/s11356-023-30603-8. Epub 2023 Nov 15.
Agricultural waste is an unwanted material that is not only unmarketable, but also has secondary costs such as environmental pollution. Oleaster, also known as olive Russian fruit, has various uses, but it also produces waste such as seeds and peels. Oleaster fruit and all its parts are tannin rich, which can be utilized as natural mordant. Improvement of fastness and color properties of natural dyed fibers is obtained by using mordant. The employing of this mordant is effective in reducing agricultural waste and the production of dyeing chemical waste. Reseda extract was utilized as natural dye to investigate the color characteristics. The study of the phenolic percentage of different components of the Oleaster fruit, including peel, seed, and flesh, showed that each of these materials can be used as natural mordant. The formation of physical bonds in the presence of all kinds of mordant was investigated using the FTIR method, and the results showed that their performance is similar and they are effective in surface treatment of wool. Investigation of color characteristics of the yarns showed that the color strength increases in the presence of mordant. Studying the fastness of yarns dyed with ISO methods showed that the samples have high washing fastness.
农业废弃物是一种无用的材料，不仅没有市场价值，而且还会产生环境污染等二次成本。沙枣，也被称为俄罗斯橄榄果，有多种用途，但它也会产生种子和果皮等废弃物。沙枣果实及其所有部分都富含单宁酸，可用作天然媒染剂。媒染剂的使用可以有效地减少农业废弃物和染色化学品的产生。利用瑞香素提取物作为天然染料，研究了颜色特性。对沙枣果皮、种子和果肉等不同成分的酚类百分比进行了研究，结果表明，这些材料都可以作为天然媒染剂。利用 FTIR 法研究了各种媒染剂存在下的物理键形成情况，结果表明它们的性能相似，在羊毛的表面处理中非常有效。对纱线颜色特性的研究表明，加入媒染剂后颜色强度增加。用 ISO 方法研究纱线的色牢度表明，样品具有较高的耐洗色牢度。
