US2022389650A1PendingUtilityA1
Launderable activated cotton
Est. expiryJan 25, 2041(~14.5 yrs left)· nominal 20-yr term from priority
Inventors:Graham Ralph Stewart
D06P 1/228D06L 4/13D06M 15/643D06M 2101/06D06P 3/6025D06P 1/0024D06M 15/263D06P 3/66D06P 1/67375D06P 1/6735D06P 1/30D06M 16/003D06M 11/76D06L 4/10D06L 4/15
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Claims
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.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method for treating cotton, comprising:
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; bleaching the cotton with hydrogen peroxide at a temperature of less than about 150° F. (about 66° C.); neutralizing the hydrogen peroxide; lowering the pH with an organic acid to between about 6 and about 7; dying the cotton at a temperature of less than about 150° F. (about 66° C.); and treating the cotton with a wax lock.
2 . The method of claim 1 , comprising treating cotton fabric.
3 . The method of claim 1 , comprising treating cotton yarn.
4 . The method of claim 1 , comprising adding a bleach activator with the soda ash.
5 . The method of claim 1 , comprising adding a sequestering agent with the soda ash.
6 . The method of claim 1 , comprising adding an arylesterase catalyst with the hydrogen peroxide.
7 . The method of claim 1 , wherein neutralizing comprises adding an enzyme to degrade the hydrogen peroxide.
8 . The method of claim 1 , wherein the organic acid comprises citric acid.
9 . The method of claim 1 , wherein the dying comprises:
treating the cotton with sodium sulfate; treating the cotton with soda ash to raise the pH to about 9.5; treating the cotton with a dye solution; rinsing the cotton; neutralizing the dye solution to a pH of about 6.5; and rinsing the cotton.
10 . The method of claim 9 , wherein the dye solution comprises a pre-reduced dye.
11 . The method of claim 10 , comprising adding a reducing agent to the dye solution.
12 . The method of claim 10 , comprising adding a mordant to the dye solution.
13 . The method of claim 10 , comprising treating the cotton with an oxidant.
14 . The method of claim 1 , comprising treating the cotton with the wax lock.
15 . The method of claim 14 , comprising drying the cotton at between about 300° F. (about 149° C.) and about 390° F. (about 199° C.).
16 . The method of claim 14 , wherein the wax lock comprises a silicone compound.
17 . The method of claim 14 , wherein the wax lock comprises an acrylic compound.
18 . An activated cotton material, comprising a layer of natural wax locked to the surface of cotton fibers by a wax lock.
19 . The activated cotton material of claim 18 , comprising a dye.
20 . The activated cotton material of claim 18 , comprising a pre-reduced dye.
21 . The activated cotton material of claim 20 , wherein the pre-reduced dye comprises indigo.
22 . The activated cotton material of claim 18 , wherein the wax lock comprises a silicone compound.
23 . The activated cotton material of claim 18 , wherein the wax lock comprises an acrylic oligomer.
24 . The activated cotton material of claim 18 , wherein the wax lock comprises a natural plant material.
25 . The activated cotton material of claim 18 , wherein the wax lock comprises a natural plant material combined with a cross-linking agent.
26 . The activated cotton material of claim 18 , comprising cotton fabric.
27 . The activated cotton material of claim 18 , comprising cotton yarn.Join the waitlist — get patent alerts
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