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  1. Prepare and prescour cotton goods.  Goods should have good absorbency, wet-out, and contain no residual chlorine, peroxide, or alkali.
  2. In a bath at 120°F(50°C) add:

1.0%                                      Orconol CHSA Conc™ on weight of fabric(owf)

X  g/L (oz/gal)                      Common salt* or Glauber’s salt as prescribed on chart shown below

0.067 oz/gal(0.5g/L)          Sodium Hexametaphosphate

1.0% owf                             Orcotol MN Powder™(for closed machines such as jets)

X % owf                                I-Series™ reactive dye properly prepared.

X % owf  Dye                       *oz/gal(g/L) Salt

to 0.50                                        5 (38)

0.51-1.00                                   7 (53)

1.01-2.00                                   9 (68)

2.01-4.00                                 12 (91)

4.01+                                        13 (98)

  1. Run for ten minutes.
  2. Bring dyebath to 175°F(80°C) at a rate of  3°F/minute.
  1. Add prescribed amount of soda ash as shown in chart below. Soda ash  may be added in portions to promote improved dye leveling.
  2. Run for 10-20 minutes.
  3. Add prescribed amount of Caustic 50% as shown in chart below. This will maximize yield of the dye.
  4. Run for 30-40 minutes.

 

% owf dyes                                           Soda Ash oz/gal(g/L)                        Caustic50% oz/gal(g/L)

                                                                      10:1       20:1                                      10:1          20:1

to 0.75                                                       0.8(6)    0.8(6)                                .20(1.5)    .20(1.5)

0.75-2.00                                                  0.8(6)    0.8(6)                                .20(1.5)    .20(1.5)

2.01-4.00                                                  1.1(8)    1.1(8)                                  .27(2.0)    .27(2.0)

4.01+                                                         1.1(8)    1.1(8)                                  .27(2.0)    .27(2.0)

 

  1. After dyeing, overflow rinse until clear using cold water. Drop bath.
  2. In a new bath at 100°F-120°F(38°C-50°C), neutralize with 1 g/L(0.133oz/gal) Acetic Acid 56%(or more if necessary for neutralization of residual alkali) for 15 minutes.  Drop bath.
  3. Soap at the boil using 0.25% owf Orcopon KP™ for 10-15 minutes.
  4. Warm rinse at 140°F-175°F(60°C-80°C).
  5. Cold rinse.

Note:    Glauber’s Salt is recommended in jet-dyeing machines as common salt may cause pitting in machinery.

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