Abstract

The ability to add value to waste materials from industrial operations has come to the attention of the wood processing industry, with reports, for example, of extracts from the bark tree conveying colour and UV protection to textile fibres. The objective of the present work was to expand our developments in this arena by using Copaifera langsdorffii Desf. bark extract as a natural dye for textile dyeing. A complete 2³-statistical experimental design and the central point was elaborated. The results showed that the optimal dyeing conditions were 98 °C, for 60 min, using undiluted bark extract. The dyed fabric was analysed by a spectrophotometer using the CIELAB system for evaluation of the colour strength. The results showed a K/S value of 5.78, and the dyed fabric had good colour fastness to rubbing and washing.

摘要

为工业运营中的废料增加价值的能力已经引起了木材加工行业的关注，例如，有报道称树皮树的提取物可以为纺织纤维提供颜色和紫外线防护。目前工作的目的是通过使用Copaifera langsdorffii来扩大我们在这个领域的发展定义。树皮提取物作为纺织染色的天然染料。详细阐述了完整的 2³-统计实验设计和中心点。结果表明，使用未稀释的树皮提取物，最佳染色条件为 98°C，染色 60 分钟。使用CIELAB系统通过分光光度计分析染色织物以评估颜色强度。结果表明，K/S值为5.78，染色织物具有良好的耐摩擦和耐洗色牢度。