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  1. Prepare goods as necessary.
  2. In any procedure involving Spandex®, the temperature should not exceed 200°F(93°C) as it may degrade the integrity of the fiber.
  3. Enter goods into a bath at 120°F(49°C) containing:
  4. Run for 10 minutes and add:
  5. Raise temperature to 195-200°F(90-93°C) being careful not to exceed 200°F, and run for 1 ½ hours.
  6. Cool back to 120°F(49°C) and overflow rinse until clear.
  7. Perform a reduction scour to remove unfixed disperse dye from the Spandex®
  8. Enter the goods into a bath at 100°F(38°C) and add:
    • 0.30 oz/gal(2.25g/L ) Orcoterge ALK-N Conc™
    • 0.40 oz/gal(3.00g/L) sodium carbonate
    • 0.50 oz/gal(3.75g/L) Sodium Hydrosulfite
  9. Raise temperature to 180°F(82°C) and run for 20 minutes.
  10. Overflow rinse until clear.
  11. Add 0.16 oz/gal(1.2 g/L) of hydrogen peroxide 35% to a fresh bath at 120°F(49°C) and run for 15 minutes.
  12. Overflow rinse until clear and drop bath.
  13. Now dye the Spandex®portion of the fabric using Orcolan Neutral™ premetallized dyes.

In a bath at 100°F(38°C) add:

  1. Adjust pH to 9.0 with ammonium hydroxide and run for 10 minutes.
  2. Add the properly prepared Orcolan Neutral™
  3. Circulate for 10 minutes.
  4. Slowly raise temperature to 190-195°F(88-90°C) and run for 1 ½-2 hours adding acetic acid to promote dye exhaustion if necessary.
  5. Overflow rinse well and drop bath.

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