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Extraction of natural colorants from Araucaria columnaris, Macaranga peltata and Averrhoa bilimbi for textile coloration
International Journal of Clothing Science and Technology ( IF 1.2 ) Pub Date : 2020-05-05 , DOI: 10.1108/ijcst-06-2019-0075
Tintu Jose Manicketh , Mannancheril Sebastian Francis

The paper aims to investigate the feasibility of developing natural dyes from the barks of Araucaria columnaris and leaves of Macaranga peltata, Averrhoa bilimbi. The paper also deals with the application of natural dyes in textile coloration.,Dye extraction was carried out using the aqueous method. The dyeability of the aqueous extract was assessed on cotton, silk and polyester yarns using different mordants (alum, acetic acid, CuSO4, lemon juice) and without mordant. UV–Visible spectral analysis and pH of different natural dyes were determined. Percent absorption, K/S values, CIELab values and fastness properties of the selected dyed yarns were also assessed.,The percentage values for dye exhaustion differed with various mordants. The K/S values were found to be influenced by the addition of mordants. Different hues were obtained with the usage of different mordants. Fastness results exhibited good to very good grades.,The effective application of aqueous method of dye extraction in the study avoids solvent toxicity. The current results proved that the dyeing could be achieved at room temperature for different yarns (cotton, silk, polyester). At present, no report exists in the literature of research work on the extraction of natural dyes from the leaves of M. peltata, A. bilimbi and their dyeing potential on cotton, silk and polyester.,The present work offers new environment-friendly dye as well as simple dyeing method. Barks and leaves are promising sources of dye. Enormous availability of barks and leaves avoids the exploitation of the plant parts for the extraction of natural dyes.,The important feature of this study was the effective dyeing of natural and synthetic fibers at room temperature. The novel sources of natural dyes would contribute significantly to the existing knowledge of dyeing, and the natural dyes reduce the environmental impact of synthetic dyes.

中文翻译:

从 Araucaria columnaris、Macaranga peltata 和 Averrhoa bilimbi 中提取天然着色剂用于纺织品着色

本文旨在研究从南洋杉的树皮和 Macaranga peltata, Averrhoa bilimbi 的叶子中开发天然染料的可行性。论文还讨论了天然染料在纺织品染色中的应用。采用水法提取染料。使用不同媒染剂(明矾、醋酸、CuSO4、柠檬汁)和不使用媒染剂对棉、丝和聚酯纱线评估水提取物的可染性。确定了不同天然染料的紫外-可见光谱分析和 pH 值。还评估了所选染色纱线的吸收百分比、K/S 值、CIELab 值和牢度性能。染料吸尽的百分比值因各种媒染剂而异。发现 K/S 值受添加媒染剂的影响。使用不同的媒染剂获得不同的色调。牢度结果显示出从良好到非常好的等级。,在研究中有效应用水性染料提取方法避免了溶剂毒性。目前的结果证明,可以在室温下对不同的纱线(棉、丝、涤纶)进行染色。目前,关于从毛茛、A. bilimbi 的叶子中提取天然染料及其在棉、丝和涤纶上的染色潜力的研究工作,目前尚未见报道。,目前的工作提供了新的环保染料以及简单的染色方法。树皮和树叶是很有前途的染料来源。树皮和叶子的大量可用性避免了利用植物部分提取天然染料。这项研究的重要特征是天然和合成纤维在室温下的有效染色。天然染料的新来源将对现有的染色知识做出重大贡献,并且天然染料减少了合成染料对环境的影响。
更新日期:2020-05-05
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