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About Fiber Reactive Dyes
(There are also fiber reactive dyes that react specifically with wool;some are found within the Lanaset grouping of dyes for protein fibers. However,this page specifically deals with fiber reative dyes that are suitable for cellulose fiber-including ways to use these dyes with protein fibers.)
What is Fiber Reactive Dyes?
Fiber reactive dye is the most permanent of all dyes. Unlike other dyes,it actually forms covalent bond with the cellulose or protein molecule. Once the bond is formed,what you have is one molecule,as the dye molecule has become an actual part of the cellulose fiber molecule. No wonder you can safely wash a garment that has been dyed in bright fiber reactive colors with white clothing,a hundred times,without endangering the whites in the least-even if it is all different bright colors,or even solid black!
How to Use Fiber Reactive Dyes
They work especially well on cotton,rayon,and silk,and also work well on linen,lyocell(Tencel),hemp,and any other cellulose fiber.
Alternatively,fiber reactive dyes can also be used as acid dyes on Protein fibers,including wool (which cannot tolerate the high PH of the cotton recipe) and silk (which can be dye either way).
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