Acid Dyes are anionic water soluble colorants available in both liquid and powder forms from Organic Dyes and Pigments®.   These high quality acid dye product lines include the Orcoacid™, Orco Lanamide™, Orco Milling™Orco Nylosol™, Orcolan Fast™, Orcolan Neutral™, and Orcoset™  brands and are very versatile, being used in many applications such as agricultural products, anodized aluminum, antifreeze & coolants, chemical compounding, coatings, construction materials, detergents & soaps, inks, pulp & paper, textiles, water tracing, UV leak detection, and wood stains.

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 Orcoacid™    |    Orco Lanamide™     |    Orco Milling™     |    Orco Nylosol™    |   Orcolan Fast™    |    Orcolan Neutral™    |    Orcoset™ 

Orcoacid™ Acid Dyes

The Orcoacid™ product line consists of a wide range of mono-azo and disazo acid dyes used to color nylon, silk, wool, and many other non-textile applications.

Color

Color Index

ORCOACID™
Solubility

Light
Fastness

CAS Registry #

Acid
Black 1

Blue Black B Conc

50 g/l

6-7

1064-48-8

Acid
Black 2

Nigrosine Jet L Crystals

30 g/l

2

8005-03-6

No CI

Black SAS 200%

25 g/l

6

Acid
Blue 1

Blue V Ex Conc

50 g/l

1

129-17-9

Acid
Blue 7

Blue A 150%

40 g/l

1

3486-30-4

Acid
Blue 9

Brilliant Blue FG

60 g/l

1

2650-18-2

Acid
Blue 25

Alizarine Fast Blue SWA

60 g/l

5

6408-78-2

Acid
Blue 40

Sapphire 2GL 200%

50 g/l

5-6

6424-85-7

Acid
Blue 41

Blue ARA

30 g/l

5-6

2666-17-3

Acid
Blue 45

Blue SAP

20 g/l

4-5

2861-02-1

Acid
Blue 62

Brilliant Alizarine Blue R 150%

25 g/l

6-7

4368-56-3

Acid
Blue 72s

Light Blue FGSA

30 g/l

5-6

Acid
Blue 182

Alizarine Light Blue HRL

30 g/l

5

12219-26-0

Acid
Blue 185

Fast Turquoise 8G

40 g/l

5-6

42234-64-9

Acid
Green 9

Fast Green B

50 g/l

3-4

4857-81-2

Acid
Green 16

Napthalamine Green 2G 300%

30 g/l

2

12768-78-4

Acid
Green 20

Dark Green A Conc

25 g/l

3

5850-39-5

Acid
Green 25

Alizarine Cyanine Green GHN

40 g/l

6

4403-90-1

Acid
Orange 7

Orange A Conc

50 g/l

5

633-96-5

Acid
Orange 10

Orange 2G

50 g/l

4

1936-15-8

Acid
Red 1

Phloxine GR 175%

50 g/l

4

3734-67-6

Acid
Red 4

Eosine G

40 g/l

4

5858-39-9

Acid
Red 14

Azo Rubine CWH

45 g/l

3-4

3567-69-9

Acid
Red 18

Brilliant Scarlet 3R-L

40 g/l

1-2

2611-82-7

Acid
Red 50

Sulpho Rhodamine G Fluorescent

30 g/l

2

5873-16-5

Acid
Red 52

Sulpho Rhodamine B Ex 400% Fluorescent

30 g/l

2-3

3520-42-1

Acid
Red 57

Rubine 3GP

50 g/l

5-6

12217-34-4

Acid
Red 73

Scarlet MR

50 g/l

3

5413-75-2

Acid
Red 88

Fast Red A Conc

30 g/l

3

1658-56-6

Acid
Red 138

Red C-2B

30 g/l

3-4

15792-43-5

No CI

Red B2BN 200% (T)

30 g/l

5-6

Acid
Violet 1

Violet 2R Conc

30 g/l

3

6441-91-4

Acid
Violet 7

Fuchsine 6B Ex Conc

30 g/l

3-4

4321-69-1

Acid
Violet 12

Carmine 4B Conc

35 g/l

3-4

6625-46-3

Acid
Violet 17

Violet 4B

40 g/l

1

4129-84-4

Acid
Violet 43

Violet WN

20 g/l

3

4430-18-6

Acid
Yellow 17

Fast Light Yellow 2G

60 g/l

3-4

6359-98-4

Acid
Yellow 19

Fast Light Yellow R

60 g/l

4-5

2220-64-3

Acid
Yellow 23

Tartrazine X 100%

60 g/l

4

1934-21-0

Acid
Yellow 184

Brilliant Flavine 8GN  Fluorescent

40 g/l

2

61968-07-8

No CI

Yellow G2GN 200% (T)

50 g/l

5-6

No CI

Fast Light Yellow 3G

70 g/l

6

Orco Lanamide™ Acid Dyes

The Orco Lanamide™ product line consists of non-hazardous, non-chrome acid dyes applicable typically to nylon and blends offering high fastness, brightness, and compatibility as a group. Orco Lanamide™ dyes are especially suited for the sport and swimwear garments.  (Fastness properties on nylon)

Color

Orco
Lanamide™

Light
Fastness

IIA Wash
Fastness

Perspiration

Yellow Y

6-7

4-5

3-5

Yellow GY

5-6

3-5

3-4

Yellow VG

5-7

4-5

4-5

Red R

4-6

3-5

2-5

Rubine RB

3-6

3-5

4-5

Red 2B

5-7

2-5

3-5

Blue BR

6-7

3-4

2-5

Brilliant Blue RR

5-6

2-5

4-5

Brilliant Blue XT

6-7

3-5

4-5

Turquoise TQ

2-4

4-5

4-5

Green CB

5-7

3-5

4-5

Orco Milling™ Acid Dyes

Orco Milling™ dyes are characterized by their high wetfastness on nylon and wool textiles and their wide range of bright colors. Although their lightfastness falls somewhat short of the metallized group of acid dyes, they do offer a brighter shade range to choose from. These dyes are used primarily in textile stock and package dyeing but have been used in piece dyeing where careful temperature and pH control is possible.   These dyes can also be used in other non-textile applications such as select detergent and coating formulations.

Color

Color
Index

Orco Milling™
Solubility

Light
Fastness

CAS Registry #

Acid
Black 24

Black 2BN

40 g/l

6

3071-73-6

Acid
Blue 80

Brilliant Blue BL

40 g/l

5-6

4474-24-2

Acid
Blue 83

Brilliant Cyanine 6B

30 g/l

2-3

6104-59-2

Acid
Blue 90

Brilliant Cyanine G

40 g/l

1-2

6104-58-1

Acid
Blue 113

Cyanine 3R 125%

30 g/l

5-7

3351-05-1

No CI

Blue RLWS

45 g/l

5-6

No CI

Blue 4SR 200% (T)

35 g/l

5-6

Acid
Green 19

Green B Conc

30 g/l

3-4

5850-34-0

Acid
Green 41

Green 7GS

30 g/l

6

4430-16-4

No CI

Orange 4R-OR 200% (T)

50 g/l

5

Acid
Red 114s

Red RS-W

50 g/l

4

Acid
Red 119

Bordeaux LFS

30 g/l

4-6

12220-20-1

Acid
Red 131

Brilliant Red 3NR

40 g/l

4-5

12234-99-0

Acid
Red 249

Brilliant Red B

35 g/l

3-4

6416-66-6

Acid
Violet 48

Brilliant Violet BL 200%

90 g/l

5-6

12220-51-8

Acid
Violet 54

Brilliant Red 10B

50 g/l

4

11097-74-8

Acid
Yellow 44

Yellow 6G

50 g/l

4-5

2429-76-7

Acid
Yellow 38

Yellow O

40 g/l

5

13390-47-1

No CI

Yellow 5G Conc

40 g/l

4-6

Orcolan Fast™ Acid Dyes

Orcolan Fast™ dyes are 1:1 acid metalized chrome-complex acid dyes with excellent leveling properties on wool in strongly acid conditions. Although this line is somewhat limited in shade range it is very popular due to its ease of application and good fastness properties and finds wide use in textile stock dyeing especially in those areas destined for cross dyes.  This class is also applicable to non-textile applications.

Color

Color
Index

Orcolan Fast™
Solubility

Light
Fastness

CAS Registry #

Acid
Black 52

Black WAN EX

40 g/l

6-7

5610-64-0

Acid
Black 63

Black BN Ex Conc

35 g/l

6

32517-36-5

Acid
Blue 129

Blue PR

20 g/l

6-7

6397-02-0

Acid
Blue 158

Fast Blue GGN 200%

25 g/l

6

6370-08-7

Acid
Orange 62s

Orange GLE-S

25 g/l

5-6

Acid
Orange 74

Orange GEN

25 g/l

5

10127-27-2

Acid
Red 183

Red RN

30 g/l

6-7

6408-31-7

Acid
Red 186

Pink BN Conc

30 g/l

6

52677-44-8

Acid
Red 194

Bordeaux RL

30 g/l

6

11075-30-2

Acid
Yellow 99

Yellow GRN

30 g/l

4

10343-58-5

Orcolan Neutral™ Acid Dyes

Orcolan Neutral™ dyes are 2:1 premetalized acid dyes. Because of their large molecular size, these behave similarly to the Orco Milling™ dyes in application and strike rate. Because of the metal complex, typically Cr+3, these dyes exhibit excellent light and wet fastness and find application in automotive industrial fabrics as well as other non-textile applications such as anodized aluminum.

Color

Color
Index

Orcolan Neutral™
Solubility

Light
Fastness

CAS Registry #

Acid
Black 107

Black BGL 200%

50 g/l

6-7

12218-96-1

Acid
Black 164

Black 3SBR

50 g/l

6-8

55613-78-0

Acid
Black 172

Black DW

70 g/l

6

61847-77-6

Acid
Black 172

Black DW Liquid

6

61847-77-6

Acid
Black 194

Black BR

70 g/l

6-7

61931-02-0

Acid
Black 194

Black BR Liquid

6-7

61931-02-0

No CI

Black BL

60 g/l

6

No CI

Black JMA-2

50 g/l

6

No CI

Black RBL

25 g/l

6

No CI

Black LDS

40 g/l

5-6

No CI

Black MGBL

60 g/l

6-7

Acid
Black 58s

Grey BLGY-N

60 g/l

5-6

Acid
Black 60

Grey B

60g/l

5-6

12218-95-0

Acid
Black 64s

Olive BGL 200%

60 g/l

5-6

Acid
Blue 127s

Blue GL

40 g/l

5-6

Acid
Blue 193

Dark Blue BR

40 g/l

5

12392-64-2

Acid
Brown 289

Brown BRL

20 g/l

5-6

12219-72-6

Acid
Brown 45

Brown 2RL

20 g/l

6

12219-54-4

Acid
Brown 48s

Brown 5R Special

30 g/l

5-6

Acid
Brown 227

Brown GRL

30 g/l

6-7

70236-41-8

Acid
Brown 282

Brown GRS

30 g/l

5-6

12219-65-7

Acid
Orange 60

Orange NR

60 g/l

6-7

30112-70-0

Acid
Orange 86

Orange RL 250%

50 g/l

6-7

12220-07-4

Acid
Red 182

Red B

50 g/l

6-8

61901-42-6

Acid
Red 259

Red 4GL

45 g/l

6-7

39389-54-3

Acid
Red 362

Red BMS

50 g/l

6-7

61814-58-2

Acid
Red 414

Red RLS

40 g/l

5-6

172287-09-7

Acid
Violet 90

Bordeaux BSB

30 g/l

4-6

6408-29-3

Acid
Yellow 127

Yellow 5G

40 g/l

6

73384-78-8

Acid
Yellow 129

Yellow 2GL Ex

30 g/l

7

12220-77-8

Acid
Yellow 151

Yellow WN 250%

70 g/l

4-5

12715-61-6

Orco Nylosol™ Acid Dyes

Orco Nylosol™ dyes are characterized by their excellent leveling and penetrating properties on nylon in addition to their wide range of bright colors. Although this range does not exhibit the high wet and light fastness properties of the Milling and Metallized dyes on nylon, when selected carefully and after-treated properly, good fastness may be achieved. This class of dye consists of two groups, each having somewhat different affinities and requiring slightly different application methods.

Color

Color
Index

Orco Nylosol™
Solubility

Light
Fastness

Wash
Fastness

Acid
Black 52

Black WA

40 g/l

6-7

5610-64-0

No CI

Black FVS

35 g/l

6

No CI

Black CB New

30 g/l

6

No CI

Black CBLW

30 g/l

6

No CI

Black DW

40 g/l

6-7

No CI

Black GD

40 g/l

6

No CI

Black JM-NM

35 g/l

5

Acid
Brown 19

Brown BRL

30 g/l

6-7

12234-73-0

Acid
Blue 25

Blue SWA

60 g/l

5

6408-78-2

Acid
Blue 62

Brilliant Blue B

40 g/l

5

4368-56-3

Acid
Blue 129

Blue PR

35 g/l

6-7

6397-02-0

Acid
Blue 185

Turquoise Blue 3G

20 g/l

5

42234-64-9

Acid
Blue 260

Brilliant Blue RL 200%

45 g/l

4-5

62168-86-9

Acid
Blue 288s

Blue E-BRLS (N)

50 g/l

5-6

Acid
Blue 324

Blue BRL 200%

30 g/l

5

88264-80-6

Acid
Blue 281

Blue GLF

30 g/l

5

226923-51-9

No CI

Brilliant Blue 3BLF (N)

40 g/l

4-5

No CI

Navy Blue LFWG (N)

30 g/l

4

Acid
Green 28

Green C3G 200%

40 g/l

6

12217-29-7

Acid
Orange 116

Orange SLF 200%

70 g/l

6

12220-10-9

Acid
Orange 156

Orange 3G Conc

60 g/l

6-7

68555-86-2

Acid
Red 111

Scarlet GN

25 g/l

5-6

6358-57-2

Acid
Red 114s

Red 8BRS

50 g/l

4-5

Acid
Red 151

Scarlet CL

30 g/l

3-4

6406-56-0

Acid
Red 266

Red 2GP (N)

60 g/l

5-6

57741-47-6

Acid
Red 299

Rubine 5BLF (N)

40 g/l

5-6

12220-29-0

Acid
Red 337

Red GN 200%

40 g/l

4-5

67786-14-6

No CI

Red 2RDF (N)

40 g/l

3-4

No CI

Pink BRLF (N)

40 g/l

3

No CI

Red HCO

40 g/l

5-6

Acid
Yellow 49

Yellow 9GL 200%

70 g/l

5-6

12239-15-5

Acid
Yellow 219

Yellow 4GR 250% (N)

70 g/l

6-7

71819-57-3

Acid
Yellow 250

Brillant Yellow FSC

30 g/l

2

93859-32-6

Acid
Yellow 127

Brilliant Yellow 5G 200%

60 g/l

6

73384-78-8

Orcoset™ Acid Dyes

Orcoset™ dyes are a specialty line of modified 1:2 metal complexed acid dyes typically used on nylon and wool offering similar dyeing characteristics, exceptional fastness properties, and bright shades.  (Fastness properties are for nylon)

Color
Orcoset™
Solubility

Light
Fastness

Wash
Fastness

Black B-S

80 g/l

7

3-5

Grey G-S

100 g/l

6-7

4-5

Blue 2R-S

100 g/l

5-6

4-5

Blue 5G-S

100 g/l

6-7

4-5

Navy R-S

100 g/l

5-6

3-5

Brown B-S

80 g/l

6

4-5

Brown G-S

80 g/l

6

4-5

Green B-S

80 g/l

6-7

4-5

Orange RN-S

80 g/l

5-6

4-5

Red G-S

100 g/l

6-7

4-5

Red 2B-S

30 g/l

5-6

4-5

Bordeaux B-S

100 g/l

5-6

4-5

Violet B-S

100 g/l

5-6

4-5

Yellow 2R-S

100 g/l

6-7

4-5

Yellow 4GN-S

80 g/l

6-7

5

Actual dye samples must be evaluated in a laboratory on medium to be dyed in production for accurate shade and physical property results. Shades shown on print material and computer monitors are for general reference only as they are inherently inaccurate due to calibration variations and technical limitations of monitors and printers.