C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 17/08 (2006.01) C11D 1/14 (2006.01) C11D 1/83 (2006.01) C11D 3/04 (2006.01) C11D 3/12 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01) D06F 39/02 (2006.01) D06L 1/12 (2006.01)
Patent
CA 2325620
Disclosed is a method of laundering soiled fabrics comprising the steps of contacting said fabric in an aqueous laundering solution with a nonaqueous liquid detergent composition containing from about 40 % to about 99 % by weight of the composition of a surfactant- containing non-aqueous liquid phase and from about 1 % to about 50 % by weight of the composition of particulate material which is substantially insoluble in said liquid phase and which is selected from peroxygen bleaching agents, bleach activators, organic detergent builders, inorganic alkalinity sources and combinations thereof. A dye transfer inhibitor and suds suppressors are essential components in one aspect of the present invention. The detergent composition is added to the aqueous solution in a washing machine at a concentration in the aqueous solution of from 2000 ppm to about 10,000 ppm, wherein from about 3 gallons to about 8 gallons of water is used to form the aqueous solution, said fabric to water weight ratio is from about 1:1 to about 1:9 and said fabrics undergo a wash time of from about 8 minutes to about 16 minutes. The method of the present invention is more effective, uses less water and energy and produces a better result than the known methods.
Aiken John Davis III
Sampath Murali
Swift Ronald Allen II
Kirby Eades Gale Baker
The Procter & Gamble Company
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