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How to wash dark clothing without pulling the colour out
Short answer: Wash cool, short and inside out, use a detergent for darks without bleach, and do not overfill the mach...
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Batch differences in colour and why they happen
Short answer: Every dye bath is a new process. Even with the same recipe, water temperature, fabric amount and time c...
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Why the colour on screen does not match
Short answer: A screen makes colour with light, while a fabric throws light back. The two systems cannot hit exactly ...
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How colour changes with the light in the shop
Short answer: A colour is light thrown back from the fabric. When the light source changes, the returned colour chang...
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Why two black garments are not the same black
Short answer: Black is mixed from several dyes, and each mix gives its own shade. On top of that, fibre, knit and fin...
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Optical brightener and what it really is
Short answer: Optical white is not a colour but a substance that absorbs invisible light and sends it out again as bl...
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What turns white clothing grey
Short answer: A grey shade on white comes from deposits and from dirt that gets washed around. Limescale, detergent r...
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Why deodorant causes yellow marks
Short answer: Aluminium salts in antiperspirant react with proteins in sweat. The reaction product settles in the fib...
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How chlorine destroys colour
Short answer: Chlorine pulls oxygen out of the water and attacks the dye molecules. The bonds break, the colour disap...
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Why clothing fades on the windowsill
Short answer: A window lets a large share of the sun's ultraviolet light through. Clothes left on a windowsill day af...
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Colour fastness to light
Short answer: Sunlight breaks down dye chemically. Light fastness is measured from one to eight, and a low number mea...
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Colour fastness to sweat
Short answer: Sweat is mildly acidic or alkaline and contains salts. If the dye is not bonded well enough, sweat can ...
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