Claims
- 1. An automatic dishwashing composition comprising:
- (a) an amount sufficient to provide from about 0.1 ppm to about 50 ppm in an aqueous solution of a cobalt bleach catalyst having the formula:
- �Co(NH.sub.3).sub.5 OAc!T.sub.y
- wherein T is one or more counteranions present in a number y, where y is 1 or 2;
- (b) from about 0.1% to about 30%, by weight, of a source of hydrogen peroxide selected from the group consisting of perborate, percarbonate, and mixtures thereof; and
- (c) from about 30% to about 99.9%, by weight, of one or more automatic dishwashing detergent adjunct materials selected from the group consisting of one or more low foaming nonionic surfactants, proteases, amylases, water soluble silicates, builders, bleach activators, and mixtures thereof.
- 2. An automatic dishwashing detergent composition according to claim 1 which produces less than 2 inches of suds.
- 3. An automatic dishwashing detergent composition according to claim 2 having a 1% aqueous solution pH of less than 11.5.
- 4. A method of washing tableware in a domestic automatic dishwashing appliance, said method comprising treating the soiled tableware in an automatic dishwasher with an aqueous alkaline bath comprising an automatic dishwashing detergent composition according to claim 1.
- 5. A method for removing tea and coffee stains from tableware, said method comprising treating tea-stained or coffee-stained tableware with an aqueous alkaline bath comprising a source of hydrogen peroxide providing from about 0.015% to about 4.5% available oxygen and from about 0.1 ppm to about 50 ppm of the cobalt bleach catalyst of the formula �Co(NH.sub.3).sub.5 OAc!T.sub.y wherein T is one or more counteranions present in a number y, where y is 1 or 2.
CROSS REFERENCE TO RELATED APPLICATION
This is continuation of application of Ser. No. 08/508,193, filed on Jul. 27, 1995, abandoned which is a continuation-in-part application of U.S. application Ser. No. 08/491,462, filed Jun. 16, 1995, abandoned, by Scheper et al.
US Referenced Citations (52)
Foreign Referenced Citations (1)
Number |
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143491 |
Jun 1985 |
EPX |
Continuations (1)
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508193 |
Jul 1995 |
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Continuation in Parts (1)
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491462 |
Jun 1995 |
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