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US 5,288,746 AGranted
Liquid laundry detergents containing stabilized glucose/glucose oxidase as H.sub.2 O.sub.2 generation system
AssigneeThe Procter & Gamble Company
InventorKakumanu Pramod
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Abstract
Liquid laundry detergent compositions containing glucose and glucose oxidase for generation of hydrogen peroxide during the laundering process are stabilized against premature hydrogen peroxide generation in the composition during storage by inclusion of Cu.sup.2+ or Ag.sup.+ ions in said compositions. The compositions also contain a bleaching catalyst to facilitate bleaching by the hydrogen peroxide.
Claims10
A concentrated liquid detergent composition useful for inhibiting dye transfer among fabrics laundered in a diluted solution thereof, said composition comprising:
- a) from about 1% to about 60% of an organic surfactant;
- b) from about 1% to about 40% detergent builder;
- c) from about 0.1% to about 20% glucose;
- d) from about 5 U to about 5000 U glucose oxidase per gram of composition;
- e) a water soluble source of a metal ion selected from the group consisting of Cu.sup.2+, Ag.sup.+ and mixtures of said sources, in sufficient amount to provide in the composition from about 0:1 to about 100 ppm of said metal ion when the ion is Ag.sup.+ and from about 20 to about 200 ppm when the ion is Cu.sup.2+ ;
- f) an effective amount of a bleaching catalyst capable of catalyzing the bleaching effect of hydrogen peroxide;
- and
- g) at least about 5% water.
5 more elements
Dependencies are inferred from the claim text.