Mordants & Assistants

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A selection of mordants for use with natural dyes to vary the final colour results when dyeing.

 

Safety

 

There is no substantiated evidence of a causal link between exposure to these dyes and any chronic or fatal illnesses. Both the acid and fibre reactive dye families have a considerable track record, of use in industry in considerable quantities and in a less well controlled environment in the crafts.

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Sensible precautions to be taken when handling dyes and chemicals, particularly as powders.

    • Avoid inhaling dusts, they can produce an asthma type reaction. People with known respiratory problems should not handle synthetic dyes, and particularly the fibre reactive dyes, in powder form. A dust mask should be worn when working with the powders or exposed to an aerosol from spraying dye solutions made up in water

 

    • Avoid splashing solutions into the eyes, swallowing the materials or prolonged skin contact. A simple ‘non-contact’ approach (most people use gloves to avoid dyeing themselves) plus normal, good, hygiene is sufficient precautions for the occasional user

 

    • Store in clearly labeled containers well away from children, pets and foodstuffs. Treat dye powders and solutions with the same caution as domestic poisons (eg strong cleaners, bleaches or medicines)

 

    • Dispose of spent solutions containing residues of the dyes responsibly. Dilute and pour onto waste land or into the sewage system. They have no known effect on the environment when used in the quantities recommended in the literature

 

 

Preparing Materials for Dyeing

 

Before dyeing, it is important to check whether the item is ‘Prepared for Dyeing’ (PFD) or requires scouring to remove any grease, oil or starch. Run a few droplets of cold water onto the fabric. If they soak in quickly, no scour is necessary. To remove starches, size and oils, add 5mls of Synthrapol (a non-ionic detergent) along with 2-3 litres of water for each 100gms of material. Stir gently over a 15 min period, and then rinse thoroughly in warm water. It is possible to use household detergent, but the alkaline residue may affect the final colour or wash fastness.

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Mordants for Natural Dyes

100g Cream of Tartar

£5.95
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Dye Mordants & Chemicals

500g Iron Mordant

£7.25
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