reactive dyes
Dyes which are bonded to fibers by irreversible,
covalent bonds, rather than by the usual hydrogen
bonding, electrovalent bonding, or solvation
effects, all of which are reversible. Most
reactive dyes may be used to color fibers other
than cellulose, the only criterion being the
presence in the substrate of a reactive hydrogen
atom, which is present in wool, nylon, and
cellulose acetate. (195 )
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