How to Pre-Scour Nylon 6,6


Scouring of nylon is recommended before any heat-setting, bleaching, or dyeing processes are performed on the goods.  Scouring will remove any excess oils, waxes, lubricants, or general soil that may be left in the fiber after manufacture, handling, storage, etc.


  1. Enter goods in bath @ 120°-190°F(49°-88°C) containing:

0.2 oz/gal(1.5g/L)           Orconol CHSA Conc™

 0.2 oz/gal(1.5g/L)          TetraSodium Pyrophosphate(TSPP)

  1. Run goods at 120°-160°F(50°-70°C) for 30-45 minutes.
  2. If goods are heavily soiled, use:

0.2 oz/gal(1.5g/L)           Caustic Soda Flakes in place of TSPP

0.5 oz/gal(3.8 g/L)          Orcopon PCA™

1.0 oz/gal(7.6 g/L)          Orco Citrisolve DL-AAS-2™

    1. Raise temperature to 160°F(71°C) and run for 30 minutes.
    2. Drop bath and rinse well at 120°F(50°C). Proper rinsing is important so that no contaminates or residual detergent is carried over into the dye cycle.

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