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Ozone decolorization of garments

  • US 5,118,322 A
  • Filed: 07/31/1990
  • Issued: 06/02/1992
  • Est. Priority Date: 07/31/1990
  • Status: Expired due to Fees
First Claim
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1. A process for selectively decolorizing a garment containing cellulosic material having warp yarn which comprises the steps of providing said garment with an ozone oxidizable dye, wetting said garment, and then contacting said wetted garment in a vapor phase with a mixture of steam and ozone at elevated temperatures for a selected period of time whereby the ozone oxidizes said dye, and then terminating the oxidation with the ozone prior to any substantial oxidation of the warp yarn of the cellulosic material.

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