How to dye wool using natural dyes

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Introduction to Dyeing

• Discuss the history of dyeing fabrics and how people

used natural materials before synthetic dyes were invented.

• The first recorded mention of fabric dyeing dates back to 2600 BC.
• Initially, natural pigments mixed with water and oil were used to decorate skin, jewellery, and clothing.
• Ancient Egyptians and pre-ceramic Peruvian communities used animals, vegetables/plants, and minerals to dye textiles.
• Tie-dyeing, an ancient art, has been practiced across continents and cultures for thousands of years.
• Bandhani, a technique practiced for over 4,000 years in South Asia, involves fabric, string, and colorful dye.
• Explain the concept of mordants and why they are used to fix dyes onto fibers.

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Materials and Safety

• Introduce the natural dye sources we will be using and explain how each one can produce different colours.

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• Discuss safety precautions:

-Wear gloves and aprons

- Handle hot water carefully.

Preparing the wool

• Demonstrate how to prepare the wool for dyeing by soaking it in a mixture of water and mordant.
• Each group can now prepare their own piece of wool.

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Extracting the dye

• Demonstrate how to extract dye from natural

materials by boiling them in water.

• For example:
• Onion skins for yellow to orange hues
• Beetroot for pink to red hues
• Spinach for green hues
• Turmeric for bright yellow hues
• Berries for purple to blue hues

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• Pupils to help with adding the natural materials to the pots and

stirring.

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Dyeing the wool

• Once the dye is extracted, strain out the plant materials.
• Add the prepared wool to the dye pot and simmer gently for about 15-20 minutes, or until the desired colour is achieved.
• Discuss how different factors, such as time and concentration of the dye, can affect the final colour.

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Rinsing and drying

• Carefully remove the wool from the dye bath and rinse it in cool water until the water runs clear.
• Squeeze out excess water and hang the wool to dry.

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Discussion and Conclusion

• Look at the colours we have created and compare them to expectations at the beginning of the lesson.
• Discuss why some colors might be more vibrant than others and the role of mordants in the dyeing process.

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• Recap the key points learned during the lesson.
• Emphasise the scientific concepts of dye extraction, mordanting, and the chemistry of natural dyes.

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Coloured Wool Art

You could now use your natural dyed wool to create some natural coloured wool art: