2022 journal article

Copaifera langsdorffii Desf. bark extract: optimisation of dyeing conditions to wool and colour fastness properties

NATURAL PRODUCT RESEARCH, 36(14), 3744–3749.

By: P. Silva*, V. Franca*, R. Queiroz*, F. Lima*, H. Freeman n, S. Costa*, S. Costa

author keywords: Natural dyeing; bark extract; wool; full factorial design; textile dyeing; colour fastness
MeSH headings : Animals; Color; Coloring Agents / chemistry; Coloring Agents / isolation & purification; Fabaceae / chemistry; Plant Bark / chemistry; Plant Extracts / chemistry; Plant Extracts / isolation & purification; Radiation Protection / methods; Radiation Protection / standards; Spectrophotometry; Temperature; Textiles; Time Factors; Ultraviolet Rays; Wool / chemistry; Wool / metabolism
TL;DR: The objective of the present work was to expand developments in this arena by using Copaifera langsdorffii Desf. (via Semantic Scholar)
Source: Web Of Science
Added: February 8, 2021

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. Graphical Abstract