Cotton, Inc.

North Carolina State University

Hbi Branded Apparel Enterprises, LLC Corporation

Matthew J Farrell

Mary Ann Ankeny

Sha Fu

Keith Zimmerman

Hasan Jameel

Harold S Freeman

Ronalds W Gonzalez

Malgorzata Szymczyk

Disclosed is mechanical and decolorization pretreatment of cotton-containing textiles, such as 'trash' feedstock in terms of end-of-life-cotton textiles, that may be used to produce sugar without the use of harsh pretreatments conditions.

Pretreatment methods for cotton textile waste fabric

Cotton-containing textiles, such as 'trash' feedstock in terms of end-of-life-cotton textiles, may be used to produce sugar without the same kinds of harsh pretreatments used for other biomasses, such as corn, grass sources, or wood. Disclosed is a process for production of sugar from a cotton-containing textile waste fabric comprising optionally mechanically pretreating the cotton-containing textile, pretreating the cotton-containing textile with an acid pretreatment to form a slurry, cooling the slurry, adding at least one base to the slurry, adding at least one additional acid to the slurry to form a buffer in situ, adding a hydrolysis enzyme, and optionally filtering the slurry.

Process for production of sugar from a cotton-containing textile

Functionalizing a fibrous material having a plurality of hydroxyl groups includes reacting the fibrous material with a compound of Formula I: where X is a monovalent counteranion for the quaternary ammonium cation of Formula I and Hal is a halogen atom, to obtain the functionalized fibrous material. Also provided is a functionalized fibrous material prepared by any one of the methods described herein (e.g., a functionalized fiber including a moiety of Formula II: having an odor of free amine below the threshold of detection, or having an odor of free amine with degree of offensiveness of about 3 or less. The functionalized fibrous material may be dyed, and articles of clothing may be made from the dyed functionalized fibrous material.

Functionalized fibrous material

A liquid fabric treatment composition including a hydrocarbon wax, a crosslinking agent, and a polyester warp sizing agent. The liquid fabric treatment composition may include a disperse dye. Methods of using these compositions for dyeing cellulose-containing fabric with a disperse dye include contacting a fabric containing cellulose with a liquid fabric treatment composition to yield a pretreated fabric, and heating the pretreated fabric to yield a treated fabric. The treated fabric contains a urethane compound formed by a reaction of the hydrocarbon wax, the crosslinking agent, and the cellulose of the fabric.

Growing community of inventors

Cary, NC, United States of America

Matthew J Farrell