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Method for decolorizing a denim fabric using ozone

  • US 9,562,318 B2
  • Filed: 01/21/2013
  • Issued: 02/07/2017
  • Est. Priority Date: 09/07/2012
  • Status: Active Grant
First Claim
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1. A Method for decolorizing a textile product, comprising:

  • a dry process for manually treating a textile product;

    a desize process removing Starch from the textile Product;

    a step of wetting the textile product With water and removing excess water from the water-soaked textile product;

    a step of exposing the textile product to ozone gas for decoorizing the textile product; and

    step of washing the textile product with water and dehydrating the textile Product,wherein the step of exposing the textile product to ozone gas comprises;

    a step of loading the textile product and cotton fabric scraps into an air-tight drum wherein the cotton fabric scraps are wetted with water;

    a step of supplying and stirring ozone gas inside the drum; and

    a step of rotating the air-tight drum so that the cotton fabric scraps can provide water to various parts of the textile product and that the ozone as decolorizes the textile product.

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