Back to results
US 11,987,927 B2Granted
Launderable activated cotton
AssigneeEnergy Ogre LLC
InventorGraham Ralph Stewart
Life of this patent
Estimating the term…
Abstract
An activated cotton material and a method for processing cotton to form the activated cotton material are provided. The activated cotton material includes a layer of natural wax that is locked to the surface of cotton fibers by a wax lock.
Claims15
A method for treating cotton, comprising, without using surfactants:
- treating the cotton with soda ash at a temperature of less than about 150° F. (about 66° C.) and a pH of about 9.5;
- adding glyceryl triacetate to the soda ash and cotton;
- bleaching the cotton with hydrogen peroxide and arylesterase at a temperature of less than about 150° F. (about 66° C.);
- neutralizing the hydrogen peroxide;
- and
- lowering the pH with an acid to between about 6 and about 7, wherein the cotton retains a burst strength of 15.9% higher than a cotton sample treated using an NaOH solution at a pH of 12.5.
3 more elements
Dependencies are inferred from the claim text.