Plants, an Ancient Secret for Making Colours
Published
For centuries, people have used plants to dye fabrics, wool and even food. Today, this know-how is returning to the forefront, as many manufacturers are looking for alternatives to chemical dyes. Natural pigments come from different parts of plants, such as leaves, roots, flowers or bark.
In France, several plants have played an important role in the history of dyeing. Madder, for example, long produced a very prized red colour. Woad, a plant close to indigo, was grown in the south-west of the country, particularly in the Toulouse region, to produce an intense blue. These crops were gradually replaced by synthetic dyes during the 19th century.
Natural dyeing, however, requires more time and preparation than chemical dyeing. It sometimes takes several days to extract the pigment, and the result can vary depending on the season, the soil or the method used. For this reason, artisans and researchers are still working to improve the consistency of the colours obtained.
Despite these constraints, interest in plant-based dyes continues to grow. They are often seen as a more environmentally friendly option, even though their real impact depends on how they are grown and processed.
Sources: Midi Libre
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