Alkaline enzyme scouring of cotton textiles
AssigneeNovozymes A/S
InventorsCarl Andrew Miller, Steen Skjold Jorgensen, Eric W. Otto, Niels K. Lange, Brian Condon, Jiyin Liu
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Abstract
The invention relates to a process for treatment of cellulosic material, as for example, knitted or woven cotton fabric, comprising the steps of preparing an aqueous enzyme solution comprising pectinase, treating the cellulosic material with an effective amount of the aqueous enzyme solution under alkaline scouring conditions; e.g., pH of 9 or above and a temperature of 50° C. or above, in a low calcium or calcium-free environment, yielding a modification of the cellulosic material such that exhibits an enhanced respond to a subsequent chemical treatment.
Claims6
A method for removing non-cellulosic materials from cotton, said method comprising contacting the cotton with an aqueous solution comprising pectate lyase at a pH of about 9.0 or above and a calcium ion concentration of less than 0.2 mM, under conditions that result in removal of said non-cellulosic materials.
A method for removing non-cellulosic materials from a cellulosic material, said method comprising contacting the cellulosic material with an aqueous solution comprising pectate lyase at a pH of about 9.0 or above and a calcium ion concentration of less than 0.2 mM, under conditions that result in removal of said non-cellulosic materials.
Dependencies are inferred from the claim text.