Page 169 - Membranes for Industrial Wastewater Recovery and Re-Use
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 Table 3.24  Classification of dyes by use and chemical nature (Colour Index, 1987)
                                                          3,
 Chemical class"  Colour index   Fibre type/dye class     2
                                                          5
 number
 Cellulosic   Protein   Cellulose  Polyamide   Polyester   Polyacrylic   $
       ester                                              2
                                                          a
                                                          f
 Direct  Sulphur  Azoic  Vat  Reactive  Acid  Mordant  Disperse  Acid  Disperse  Basic  Disperse  Basic  Acid  Disperse  Basic
                                                          9
 Nitroso   10000-10299   x  x  X   x  x  X   x  x         2
 Nitro   10300-10999   x  x  X   x  x  X   x  x           ?+
 Azo   11000-36999  X   X   x  x  X   x  x  x  x  x  x  x  X   E
                                                          f:
 Azoic   3 7000-3 9 99 9   X                              5(
 Stilbene   40000-40799  X   X                            B
 Carotenoid   40800-40999  X   X                          ri
                                                          B
 Triarylmethane  42000-44999   x  x  X   X   x  x   X      d
 Xanthene   45000-45999   x  x  X   X   x  x       X      Ls
 Acridine   46000-46999   X   X     X               X     a
 Quinoline   47000-47999  X   X   X   x  x  x  x  x  x  x  X   B
                                                          ?
 Methine   48000-48999  X   X       X               X     f
 Thiazole   49000-49399   X   X   X   X   X         X
 Azine   50000-50999   X   X   X   X   x  x        X
 Oxazine   51000-51999  X   X   X   X   X           X
 Thiazine   52000-52999   X   X   X   X             X
 Sulphur   53000-54999   X   X
 Anthraquinone  58000-72999  X   x x  x  x  X   x  x  x  x  x  x  x  X
 Indigoid   73000-73999   X   X   X      X
 Phthalocyamne  74000-74999  X   X   x   x x  X   X   X   x  x  X

 a Does not include all chemical classes.
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