Reactive "HE" Series
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Reactive "HE" Series
Reactive "HE" Series Shades and Properties

Reactive 'HE' Dyes

FASTNESS PROPERTIES

Light

Washing

Perspiration

Hypochlorite

Dischargeability

Yellow HE6G
Yellow - 135

4-5

4

4

1

G

Yellow HE4R
Yellow - 81

5-6

5

4-5

1-2

G

Yellow HE4R
Yellow - 84

5-6

5

4-5

2-3

P

Orange HER
Orange - 84

3-4

4

4

4-5

P

Red HE3B
Red - 120

5

5

4-5

1

P

Red HE7B
Red - 141

4-5

5

5

3

P

Blue HA
Blue - 71

5-6

5

5

3

G

Blue HERD
Blue - 160

6

5

4

3

F

Navy Blue HEGN
Blue - 198

4-5

4-5

3-4

3

F

Navy Blue HER
Blue - 171

4

5

4

1-2

F

Green HE 4B
Green - 19

4

4-5

4-5

1

F

 

High Energy Reactive Series "HE"
HE dyes are suitable for dyeing cotton and other cellulosic materials. These dyes possess significantly higher exhaustion and fixation efficiency which results in appreciable cost reduction, in comparison to conventional reactive dyes. The high fixation and good build up are of particular importance when dyeing polyester/cellulosic blends wher liquor:goods ratio is quite high. Due to higher fixation of HE dyes, the drained and wash liquors after dyeing contain much less quantity of unfixed dyes, in concern to everybody. This facillitates quicker wash off and effiecient soaping. The improved stability of HE dyes gives improved batch to batch consistancy. Exhaustion of HE dyes can be controlled by salt addition and temperature to give level dyeing before alkali addition.
Other useful features of HE dyes:
  • Excellent build-up in high as well as low liquor:Good ratios
  • The high fixation is of particular importance when dyeing polyester/cellulose blend when liquor/goods ratio is quite high. Under the circumstances, conventional reactive dyes show low dyeing efficiency and poor build-up.
  • Excellent reproducibility
  • Wide applicability on yarn, piece material, loose stock and garments.
  • Wide choice of equipment to suit particular application.

Dyeing Methods

Winch, Jet, Package & Bean dyeing machines.

  1. Salt addition in portions (Suitable for mercerised yarn)
  2. Salt addition at start (Suitable for unmercerised cotton)
  3. Both salt and alkali addition at start
  4. Dyeing Pale Shades (Garment dyeing)
  5. Isothermal Method (Dyeing Heavy Shades on Garment)
  6. Dyeing Method for Gigger Machines

These dyes are specially designed for exhaust dyeing methods. The dyeing method selection depends upon the type of subtrate to be dyed and the machinery to be used for dyeing.

Depth of Shade 

unmercerised cotton

 mercerised cotton

 Soda Ash

 Fixation time

 Ut to 0.1%

 10 g/l of salt

 5 g/l of salt

 10 g/l

 30 minutes

 0.11 - 0.30%

 20 g/l of salt

 10 g/l of salt

 10 g/l

 30 minutes

 0.31 - 0.50%

 30 g/l of salt

 20 g/l of salt

 10 g/l

 45 minutes

 0.51 - 1.0%

 45 g/l of salt

 30 g/l of salt

 15 g/l

 45 minutes

 1.01 - 2.0%

 60 g/l of salt

 40 g/l of salt

 15 g/l

 45 minutes

 2.01 - 4.0%

 70 g/l of salt

 55 g/l of salt

 20 g/l

 60 minutes

 Above 4.0%

 90 g/l of salt

 65 g/l of salt

 20 g/l

 60 minutes

 For more details on the listed dyeing methods, please contact our technical department: office@novact.us