An Acid Dye is a dye, in chemical regard a sodium (less often–ammonium) salt of a sulfonic, carboxylic or phenol organic acid. Acid dye is soluble in water and possesses the affinity for amphoteric fibers while lacking direct dyes’ affinity for cellulose fibers. When dyeing, ionic bonding with fiber cationic sites accounts for fixation of colored anions in the dyed material. Acids are added to dyeing baths to increase the number of protonated amino groups in fibers. Some acid dyes are used as food colorants.

Used In
  • Paper

  • Nylon

  • Silk  Yarn And Textiles Dyeing

  • Lab Stains

  • Inks

Characteristics
  • Good Solubility

  • Good Levelling property

  • Several are suitable for high temp application /  blend dyeing

Acid Dyes are available in the following shades
ShadesCommercial NameC I NameShadesCommercial NameC I Name
BLACK 10BXACID BLACK 1RED 10BACID VIOLET 54
BLACK NTACID BLACK 210ORANGE IIACID ORANGE 7
BLACK NBACID BLACK 234ORANGE 2GLACID ORANGE 10
Brown 5ACID BROWN 67METHYL ORANGEACID ORANGE 52
BROWN 5RACID BROWN 348YELLOW 5GNACID YELLOW 110
BROWN 5GACID BROWN 349MAROON VACID RED 119
GREEN PXEACID GREEN 1NIGROSINE WS CRYSTALACID BLACK 2
BLACK BBACID GREEN 9BRILLGREEN GACID GREEN 25
GREEN V 333 %ACID GREEN 16GREEN V 333%ACID GREEN 16
GREEN LSACID GREEN 20CYNINE BLUE 5R250ACID BLUE 114
GREEN LBACID GREEN 111YELLOW M3RLACID YELLOW 194
ACID ROSEACID RED 1ORANGE YRXACID ORANGE 67
CRYSTA RED AACID RED 14ORANGE GRACID ORANGE 74
SCARLET 3RACID RED 18ORANGE 2GACID ORANGE 116
ACID RHODAMINE 400%ACID RED 52BLUE MTRACID BLUE 193
SCARLET MOOACID RED 73BLACK MTLACID BLACK 194
FAST RED AACID RED 88BLACK GRACID BLACK 172
RED B2GACID RED 97BALCK MBXACID BLACK MIXTURE
RED RSACID RED 114RED GRACID RED 183
Red VBACID RED 119RED 2BNACID RED 195
RED 3RBACID RED 128PINK BEACID RED 186
RED 3BNACID RED 131
YELLOW GLACID YELLOW 114
RED FRACID RED 151BLACK W.A.ACID BLACK 52
RED M2BNACID RED 249BLACK GR
ACID BLACK 172
YELLOW GACID YELLOW 11BLACK MRLACID BLACK 194
YELLOW 2GLACID YELLOW 17BROWN M5GLACID BROWN 355
TATRAZINE YACID YELLOW 23BROWN M2RLACID BROWN 365
METANIL YELLOW R
ACID YELLOW 36BROWN MSRLACID BROWN 402
YELLOW FGACID YELLOW 42BROWN GLS
ACID BROWN 214
YELLOW 5GNACID YELLOW 110RED GRACID RED 183
YELLOW GLACID YELLOW 114PINK BEACID RED 186
PATENT BLUE VS D/CONCACID BLUE 1YELLOW GRACID YELLOW 99
PATENT BLUE AS D/CONCACID BLUE 7YELLOW M3RLACID YELLOW 194
NAVY BLUE M3RACID BLUE 9YELLOW GLACID YELLOW 114
BLUE D/CONCACID BLUE 15ORANGE GRACID ORANGE 74
ACID RED 2METHYL REDORANGE MRLACID ORANGE 142
INK BLUE RYSTALSACID BLUE 93BLUE 2GACID BLUE 158
CYANINE BLUE 5RACID BLUE 113BLUE MTR
ACID BLUE 193
GERANINE 6BACID VIOLET 7BORDEAX MBACID VIOLET 90
VIOLET 4BNACID VIOLET 17SCARLET MLACID RED 357