How to One-Bath Reduction Scour & Optical Whiten Wool/Rayon Blends

This procedure is especially useful where the amount of Rayon in the blend is 40% or greater. The pH should not exceed 9 as the rayon component may begin to saponify, and temperatures in excess of 140°F(60°C) should be avoided .  The alkali sensitivity of the wool and rayon make a simultaneous reduction-scour-white procedure practical:

  • Slowly raise temperature to 160-175°F(71-79°C).
  • Add 0.5-1.0% owg Acetic acid and run for 30 minutes.
  • Overflow to 125°F(52°C) and drop bath.
  • Rinse well.

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