Difference between revisions of "Dye"

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A '''dye''' can generally be described as a coloured substance that has an affinity to the substrate to which it is being applied. A material that imparts colour to other substances (eg food, fabric, skin, paints) thus making them (normally) more attractive or distinctive.
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A '''dye''' can generally be described as a [[colour]]ed substance that has an affinity to the substrate to which it is being applied, or a material that imparts colour to other substances (e.g. [[food]], [[fabric]], skin, [[paint]]s) thus making them (normally) more attractive or distinctive.
   
The dye is usually used as an aqueous solution and may require a [[mordant]] to improve the fastness of the dye on the fibre. (''In contrast, a [[pigment]] generally has no affinity for the substrate, and is insoluble'')
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The dye is usually used as an aqueous solution and may require a [[mordant]] to improve the fastness of the dye on the [[fibre]]. (''In contrast, a [[pigment]] generally has no affinity for the substrate, and is insoluble'')
   
Dyes are obtained from either animal, vegetable or mineral origin with no or very little processing. By far the greatest source of dyes has been from the plant kingdom, notably roots, berries, bark, leaves and wood, but only a few have ever been used on a commercial scale.
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Dyes are obtained from either [[animal]], [[vegetable]] or [[mineral]] origin with no or very little processing. By far the greatest source of dyes has been from the plant kingdom, notably roots, [[berry|berries]], bark, leaves and [[wood]], but only a few have ever been used on a commercial scale.
   
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==Internal Links==
see:
 
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''See Also:''
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* [[dyeing with beetroot]]
 
* [[food dye]]
 
* [[food dye]]
 
* [[dye colours]]
 
* [[dye colours]]
* [[dying]]
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* [[dyeing]]
 
* [[pigment]]
 
* [[pigment]]
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==External Links==
 
 
* http://www.wikipedia.org/wiki/Dye
 
* http://www.wikipedia.org/wiki/Dye
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[[category:dyes]]

Latest revision as of 15:54, 1 May 2007

A dye can generally be described as a coloured substance that has an affinity to the substrate to which it is being applied, or a material that imparts colour to other substances (e.g. food, fabric, skin, paints) thus making them (normally) more attractive or distinctive.

The dye is usually used as an aqueous solution and may require a mordant to improve the fastness of the dye on the fibre. (In contrast, a pigment generally has no affinity for the substrate, and is insoluble)

Dyes are obtained from either animal, vegetable or mineral origin with no or very little processing. By far the greatest source of dyes has been from the plant kingdom, notably roots, berries, bark, leaves and wood, but only a few have ever been used on a commercial scale.

Internal Links

See Also:

External Links