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US 8,404,628 B1Granted
Method for spray bleaching cellulosic fabrics
AssigneeHBI Branded Apparel Enterprises, LLC
InventorRuth E. May
Life of this patent
Estimating the term…
Abstract
A method is provided for spray bleaching cellulosic fabrics. A bleaching composition comprises a wetter, hydrogen peroxide, a caustic, a stabilizer, an optical brightener, and water. The bleaching composition is sprayed on at least one surface of the cellulosic fabric, subjected to steam to fix the bleaching composition to the fabric, and rinsed to remove any residual bleaching composition.
Claims32
A method for spray bleaching cellulosic fabrics, comprising:
- (a) mixing together a wetter, hydrogen peroxide, a caustic, a stabilizer, an optical brightener, and water to form a bleaching composition wherein the weight percent of water is selected to produce in a single spray operation a whiteness on the cellulosic fabric of at least 125 when measured with an X-Rite spectrophotometer
- (b) spraying the bleaching composition on at least one surface of the cellulosic fabric;
- (c) subjecting the fabric to heat to fix the bleaching composition to the fabric;
- and
- (d) rinsing the bleached fabric to remove any residual bleaching composition.
2 more elements
Dependencies are inferred from the claim text.