Mildly alkaline dishwashing detergents
First Claim
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1. A phosphate-tree, mildly alkaline, dishwashing machine detergent composition consisting essentially of(a) from 30 to 50% by weight of sodium citrate;
- (b) from 25 to 40% by weight of alkali metal bicarbonate;
(c) from 2 to 20% by weight of a bleaching agent;
(d) from 1 to 8% by weight of a bleaching agent activator; and
(e) from 0.2 to 4% by weight of an enzyme;
all weights being based on the weight of said composition, and wherein said composition in the form of a 1% by weight aqueous solution has a pH value of from about 8 to less than 10.
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Abstract
A phosphate-free mildly alkaline, dishwashing detergent composition containing:
(a) from 20 to 60% by weight of sodium citrate;
(b) from 5 to 50% by weight of alkali metal hydrogen carbonate;
(c) from 7 to 12% by weight of alkali metal carbonate;
(d) from 2 to 20% by weight of a bleaching agent;
(e) from 1 to 8% by weight of a bleaching agent activator; and
(f) from 0.2 to 4% by weight of an enzyme, all weights being based on the
weight of the composition wherein the composition in the form of a 1% by weight aqueous solution has a pH value of from about 8 to less than 10.
167 Citations
15 Claims
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1. A phosphate-tree, mildly alkaline, dishwashing machine detergent composition consisting essentially of
(a) from 30 to 50% by weight of sodium citrate; -
(b) from 25 to 40% by weight of alkali metal bicarbonate; (c) from 2 to 20% by weight of a bleaching agent; (d) from 1 to 8% by weight of a bleaching agent activator; and (e) from 0.2 to 4% by weight of an enzyme; all weights being based on the weight of said composition, and wherein said composition in the form of a 1% by weight aqueous solution has a pH value of from about 8 to less than 10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for washing dishware comprising contacting said dishware with a phosphate-free, mildly alkaline, dishwashing machine detergent composition in the form of an aqueous solution, said detergent composition consisting essentially of:
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(a) from 30 to 50% by weight sodium citrate; (b) from 25 to 40% by weight of alkali metal bicarbonate; (c) from 2 to 20% by weight of a bleaching agent; (d) from 1 to 8% by weight of a bleaching agent activator; and (t) from 0.2 to 4% by weight of an enzyme; all weights begin based on the weight of said composition, and said composition in the form of a 1% by weight aqueous solution has a pH value of from about 8 to less than 10. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification