Reactive dyes are one of the most “fast” dyes when applied to a cellulosic substrate due to its covalent bonding.  Although reactive dyes can be used on different non-textile applications, these are a typical textile dyer’s choice for cotton and rayon due to the excellent fastness properties and bright shade range. Many textile dyeing application methods can be used such as exhaust, continuous, package, jet dyeing, garment dyeing, and printing. 

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 Orco Reactive BF-Series™    |    Orco Reactive I-Series™     |    Orco Reactive MX-Series™     |    Orco Reactive R-Series™

Orco Reactive BF-Series™ Reactive Dyes

Orco Reactive BF-Series™ reactive dyes are comprised of vinyl sulfone and monochlorotriazine linking groups offering benefits of both the Orco Reactive R-Series™ and ORCO Reactive I-Series™ reactive dyes, respectively. These are more stable to temperature, liquor-ratio, salt, and pH variations, thus providing excellent reproducibility for garment dyeing of cotton. The BF-Series™ reactive dye class can be dyed in conjunction with R-Series™ or I-Series™ dyes. Dyeing temperature can range between 140° F(60° C) and 175° F(80° C). However, maximum yield is obtained when dyed at 140° F(60° C).

Shade
Color Index
Orco Reactive™
Solubility

Light
Fastness

CAS Registry #

No CI

Black BF-Special

100 g/L

6

No CI

Black BF-Special Liquid

6

Reactive
Blue 194

Navy Blue BF-2GB

60 g/L

5

93050-78-3

Reactive
Blue 194

Navy Blue BF-2RB

100 g/L

5

93050-78-3

Reactive
Blue 221

Blue BF-BRF

100 g/L

5

93051-41-3

Reactive
Blue 222

Navy Blue BF-FBN

100 g/L

5

93051-44-6

No CI

Orange BF-2RX

50 g/L

3

Reactive
Red 195

Red BF-6BN

100

5

93050-79-4

Reactive
Red 195

Red BF-6BN 25% Liquid

5

93050-79-4

No CI

Orco Reactive Red BF-4BL

100 g/L

4-5

Reactive
Yellow 145

Golden Yellow BF-2GR

120 g/L

6

93050-80-7

Reactive
Yellow 145

Yellow BF-2GR 25% Liquid

6

93050-80-7

Reactive
Yellow 167

Yellow BF-3GN

150 g/L

5-6

115682-10-5

No CI

Golden Yellow BF-4GR

110 g/L

5-6

Orco Reactive I-Series™ Reactive Dyes

Orco Reactive I-Series™ reactive dyes have monochlorotriazine linking groups and are generally dyed at 175°F(80° C). These offer excellent leveling properties as well as high-exhaustion characteristics making them suitable for medium and deep shades. This class is recommended for cellulose and polyester/cotton blends in exhaust dyeing.

Shade
Color Index
Orco Reactive
Solubility

Light
Fastness

CAS Registry #

No CI

Black I-GA

40 g/L

4-5

Reactive
Blue 71

Turquoise I-A

80 g/L

4-5

12677-15-5

Reactive
Blue 160

Blue I-RD

50 g/L

5

71872-76-9

Reactive
Blue 171

Navy I-R

60 g/L

4-5

77907-32-5

Reactive
Blue 198

Blue I-GN 125%

40 g/L

5

124448-55-1

No CI

Brown I-RA

25 g/L

4

Reactive
Brown 17

Brown I-4RD

40 g/L

4

12225-72-8

Reactive
Green 19

Green I-4BD

80 g/L

5

61931-49-5

Reactive
Orange 20

Orange I-2G

100 g/L

4

12225-91-1

Reactive
Orange 84

Orange I-R

60

4

91261-29-9

Reactive
Red 43

Scarlet I-GB

100 g/L

4

12226-20-9

Reactive
Red 58

Red I-XL

100 g/L

4-5

12226-27-6

Reactive
Red 120

Red I-3B

100 g/L

4-5

61951-82-4

Reactive
Red 141

Red I-7B

100 g/L

4-5

61931-52-0

No CI

Red I-GA

60 g/L

3-4

No CI

Scarlet I-A

60 g/L

3-4

Reactive
Yellow 84

Yellow I-4R

75 g/L

4-5

61951-85-7

Reactive
Yellow 135

Yellow I-6G

50 g/L

3-4

77907-38-1

Reactive
Yellow 179

Brilliant Yellow I-4G

200 g/L

5

93376-16-0

Orco Reactive MX-Series™ Reactive Dyes

Orco Reactive MX-Series™ reactive dyes have dichlorotriazine(DCT) linking groups which promote high substantivity for cellulosics. Because of their high reactivity, a lower dyeing temperature(70-120°F(20-50° C)) is required to promote fixation with the fiber and therefore lend themselves to cold pad-batch, continuous, and tie-dye applications on cotton.

Shade
Color Index
Orco Reactive™
Solubility

Light
Fastness

CAS Registry #

No CI

Black MX-A

70 g/L

4

No CI

Black MX-CWNA

50 g/L

3-4

Reactive
Blue 4

Blue MX-R

100 g/L

4-5

13324-20-4

Reactive
Blue 109

Blue MX-2G 125%

90 g/L

4

61951-76-6

Reactive
Blue 140

Turquoise MX-G

100 g/L

4-5

71872-74-7

Reactive
Blue 163

Blue MX-G Conc

70 g/L

4-5

6548-42-1

Reactive
Brown 10

Brown MX-5BR

50 g/L

3-4

12225-67-1

No CI

Light Brown MX-YL

50 g/L

4

No CI

Green MX-700

80 g/L

4-5

Reactive
Orange 4

Orange MX-2R

50 g/L

3-4

12225-82-0

Reactive
Orange 86

Yellow MX-3RA

70 g/L

5

8683929-91-3

Reactive
Red 2

Red MX-5B

100 g/L

4

12226-03-8

Reactive
Red 5

Red MX-5G

80 g/L

4

12226-04-9

Reactive
Red 11

Red MX-8B

80 g/L

4

12226-08-3

No CI

Red MX-GBA

50 g/L

4

No CI

Scarlet MX-BRA

50 g/L

4

No CI

Violet MX-BP

70 g/L

4-5

Reactive
Yellow 7

Yellow MX-GR

70 g/L

4-5

12226-46-9

Reactive
Yellow 86

Brilliant Yellow MX-8G

80 g/L

5

61951-86-8

Orco Reactive R-Series™ Reactive Dyes

Orco Reactive R-Series™ reactive dyes have vinyl sulfone linking groups which are typically dyed at 140°F (60° C). This reactive dye class is stable to acid hydrolysis, has excellent wash-off properties of unfixed dye, and is easy to strip. Applicable dyeing procedures are exhaust, continuous, cold pad-batch, garment dyeing, and printing. A wide shade range and good economics, especially with blacks and navies, make this a very popular reactive dye class.

Shade
Color Index
Orco Reactive™
Solubility

Light
Fastness

CAS Registry #

No CI

Black GR

100 g/L

6

No CI

Black GR 25% Liquid

6

Reactive
Black 5

Black RB

100 g/L

5

17095-24-8

Reactive
Black 5

Black RB Liquid 25%

5

17095-24-8

Reactive
Black 31

Black RRL

100 g/L

5-6

12731-63-4

Reactive
Blue 19

Blue RW Special

75 g/L

6

2580-78-1

Reactive
Blue 21

Turquoise RP

40 g/L

4

73049-92-0

Reactive
Blue 21

Turquoise RP Liquid 33%

4

73049-92-0

Reactive
Blue 203

Navy Blue RGB

70 g/L

4-5

147826-71-9

Reactive
Blue 203

Blue RGB 25% Liquid

4-5

147826-71-9

Reactive
Brown 18

Brown RGR

80 g/L

5-6

12225-73-9

Reactive
Orange 16

Orange 3RA

80 g/L

4-5

12769-09-4

Reactive
Orange 16

Orange 3RA Liquid 25%

4-5

4-5

Reactive
Orange 78

Orange R3G

60 g/L

5

71902-15-3

Reactive
Orange 82

Orange RFR

80 g/L

4-5

71838-95-4

Reactive
Red 21

Brilliant Red RBR

40 g/L

5

85940-66-5

Reactive
Red 49

Bordeaux RB

80 g/L

6-7

12237-02-4

Reactive
Red 180

Brilliant Red RF3B

80 g/L

5-6

72828-03-6

Reactive
Red 198

Red RB

80 g/L

5

145017-98-7

No CI

Red R3BS

80 g/L

5-6

Reactive
Violet 5

Violet R5R 120%

80 g/L

6

12226-38-9

No CI

Violet R4B

60 g/L

5

Reactive
Yellow 15

Yellow RGR 110%

100 g/L

5

12226-47-0

Reactive
Yellow 17

Golden Yellow RGA

100 g/L

5-6

20317-19-5

Reactive
Yellow 37

Brilliant Yellow RGL

50 g/L

6

12237-16-0

Reactive
Yellow 160

Brilliant Yellow R4GL 150%

40 g/L

6

129898-77-7

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.