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US 6,310,031 B1Granted
Method of inhibiting soil redeposition
AssigneeAmway Corporation
InventorPhilip G. Sliva
Life of this patent
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Abstract
A method of inhibiting soil redeposition on fabric stained by one or more quaternary compounds by providing a sulfonated material in an effective amount to a wash liquor. The sulfonated material includes water-soluble sulfonated polymers. Generally, the sulfonated material is incorporated with a laundry detergent to provide a use level of about 30 ppm to about 300 ppm in the wash liquor.
Claims9
A method of inhibiting redeposition of soil on fabrics during washing as a result of the presence of polyquaternary compounds on the fabric comprising:
- a. forming a wash liquor by mixing a laundry detergent with wash water;
- b. contacting a fabric containing one or more polyquaternary compounds and soil with the wash liquor;
- and,
- c. providing an amount of a sulfonated material effective to prevent redeposition of the soil on the fabric in the presence of polyquaternary compounds, wherein the sulfonated material is selected from the group of sulfonated polymers, sulfonated copolymers, and mixtures thereof, wherein the degree of sulfonation is greater than 10%, and wherein the sulfonated material is present while the fabric is in contact with the wash liquor.
1 more element
Dependencies are inferred from the claim text.