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Detergent composition for treating cotton-containing fabrics containing a surfactant and a cellulase composition containing endolucanase III from trichoderma ssp
| Details |
Inventors: Clarkson, Katheen A.; Larenas, Edmund; Weiss, Geoffrey L.;
Assignee: Genencor International, Inc. (So. San Francisco, CA)
Primary Examiner: Naff; David M.
Assistant Examiner: Meller; Michael V.
Attorney, Agent or Firm: Burns, Doane, Swecker & Mathis
Disclosed are detergent compositions containing a cleaning effective amount of a surfactant or a mixture of surfactants and from about 0.01 to about 5 weight percent of substantially pure EG III cellulase. Preferably, the detergent composition contains no more than about 5 weight percent of CBH I type components based on the total weight of cellulase proteins. When employed in aqueous wash media, the detergent compositions impart color retention/restoration properties as well as improved softening and feel properties to cotton-containing fabrics. |
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DETAILED DESCRIPTION The present invention is directed to the use of substantially pure EG III cellulase in detergent compositions to attain improvements in softening, color retention/restoration and feel.
Specifically, because of the surprisingly enhanced activity of EG III cellulase under alkaline conditions, detergent compositions containing substantially pure EG III cellulase are particularly suited for use in laundry conditions where a neutral or alkaline detergent wash medium is employed.
Accordingly, in one of its composition aspects, the present invention is directed to a detergent composition comprising a cleaning effective amount of a surfactant or a mixture of surfactants and from about 0.
01 to about 5 weight percent, and preferably from about 0.
05 to about 2 weight percent, of a substantially pure EG III cellulase.
In one of its method aspects, the present invention is directed to a method for enhancing the softness of a cotton-containing fabric which method comprises washing the fabric in a wash medium derived from a detergent composition comprising a cleaning effective amount of a surfactant or a mixture of surfactants and from about 0.
01 to about 5, and preferably from about 0.
05 to about 2, weight percent of substantially pure EG III cellulase.
In another of its method aspects, the present invention is directed to a method for retaining/restoring the color of a cotton-containing fabric which method comprises washing the fabric one or more times in a wash medium derived from a detergent composition comprising a cleaning effective amount of a surfactant or a mixture of surfactants and from about 0.
01 to about 5, and preferably from about 0.
05 to about 2, weight percent of substantially pure EG III cellulase.
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Molecular Biology 
