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A C T I V I T Y
G R E E N  C H E M I S T

YE FROM wasteDYE FROM
waste

Soak the cloth in salted warm water to fix the dye. Rinse the cloth, at least twice, in cold water and dry in shade. To experiment with a colour, add drops of vinegar or limejuice or baking soda to see how differences in pH can affect colour composition and strength of the dye. Any piece of cloth that you wish to dye should be washed thoroughly to remove all the starch and allowed to boil in the water.

Add onion peel (red or yellow) and allow it to simmer until the water turns golden or red in colour. Remember that more peel is needed for darker colour, while it is best to bring it to two or three shades of higher colour than you prefer. Strain to remove the peel.

MAGIC OF ONIONS
77-6.jpg (2050 bytes)1Simmer about a cup of water in medium heat. 77-5.jpg (2275 bytes)4Any piece of cloth that you wish to dye should be washed thoroughly to remove all the starch and allowed to boil in the water.
2Add onion peel (red or yellow) and allow it to simmer until the water turns golden or red in 77-4.jpg (1776 bytes)colour. Remember that more peel is needed for darker colour, while it is best to bring it to two or three shades of higher colour than you prefer. Strain to remove the peel. 77-3.jpg (1864 bytes)5To experiment with a colour, add drops of vinegar or limejuice or baking soda to see how differences in pH can affect colour composition and strength of the dye.
3The yellow flavinoids found in the yellow 77-2.jpg (1710 bytes)onion peel are pH sensitive. They turn deeper yellow in basic pH solutions. Addition of salt can turn the solution basic and produce a deeper yellow shade. 77-1.jpg (1398 bytes)6Soak the cloth in salted warm water to fix the dye. Rinse the cloth, at least twice, in cold water and dry in shade.

 

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