Abstract: The present invention provides a method for treating fabrics by employing an automatic laundry washing machine to selectively add agitation-sensitive detersive actives into the wash liquor during a wash cycle when the mechanical agitation power applied to the fabrics by said washing machine is more than 12 W/kg, so as to improve or optimize the cleaning performance of such agitation-sensitive detersive actives.

Abstract: A method of treating a fabric, including a treatment step of subjecting the fabric to an aqueous liquor which includes an anionic surfactant and from about 100 ppm to about 7,000 ppm of an acidifying agent wherein the treatment step is not followed by a rinse off step.

Abstract: A method of laundering fabrics includes: a) contacting a laundry detergent to water to form a wash liquor, wherein the laundry detergent includes detersive surfactant, wherein the wash liquor includes detersive surfactant at a concentration in the range of from 100 ppm to 2500 ppm; b) contacting fabric to the wash liquor, and washing the fabric in the wash liquor; c) after a period of time of at least 6 minutes from contacting the fabric to the wash liquor, introducing calcium cations into the wash liquor to form a calcium enriched wash liquor, wherein the calcium enriched wash liquor includes calcium cations at a concentration in the range of from 20 ppm to 400 ppm; d) washing the fabric in the calcium-enriched wash liquor for a period of time of at least 2 minutes; and e) removing the excess calcium-enriched wash liquor from the fabric, and rinsing the fabric in water.

Abstract: The present invention provides a method for treating fabrics by employing an automatic laundry washing machine to selectively add agitation-sensitive detersive actives into the wash liquor during a wash cycle when the mechanical agitation power applied to the fabrics by said washing machine is more than 12 W/kg, so as to improve or optimize the cleaning performance of such agitation-sensitive detersive actives.

Abstract: The present invention relates to a method for treating fabrics by contacting the fabrics with an aqueous wash liquor at varying pH values that increase from about 7-9 to about 10-13 (optionally down to about 7-9), maintaining such contact at pH 10-13 for about 5-30 minutes, followed by contacting the fabrics with an aqueous rinse liquor at an acid pH value of about 4-6. Such method provides a significantly improved stain removal benefit without any formulation changes. Further, it enables the use of laundry detergent compositions that are essentially free of alkoxylated surfactants, such as alkylalkoxylated sulfates or alkylalkoxylated alcohols, while still delivering satisfactory stain removal results.