Methods of removing stains and machine dishwashing methods

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United States of America Patent

PATENT NO 8920576
SERIAL NO

13772431

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Abstract

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A machine dishwashing method comprises: dispensing two liquid cleansers or detergents A and B into the interior of a machine dishwasher during the cleaning dishwashing cycle, wherein the liquid detergent A has a pH at 20° C. of 6 to 9 and the liquid detergent B has a pH at 20° C. of 9 to 14 and is dispensed at cleaning cycle time t2; and wherein the liquid cleansers or detergents A and B comprise, respectively: A: 10% to 75% by weight of a detergent builder, 0.1% to 10% by weight of an enzyme, 24.9% to 89.9% by weight of a solvent; and B: 10% to 74.9% by weight of a detergent builder, 25% to 89.9% by weight of a solvent; and wherein neither liquid cleanser or detergent A nor liquid cleanser or detergent B individually comprises more than 2% by weight of a bleaching agent.

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Patent Owner(s)

Patent OwnerAddress
HENKEL AG & CO KGAADUSSELDORF DUESSELDORF NORTH RHINE-WESTPHALIA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gentschev, Pavel Bad Goisern, DE 21 200
Jekel, Maren Willich, DE 33 532
Kessler, Arnd Monheim am Rhein, DE 138 992
Nitsch, Christian Duesseldorf, DE 131 1420
Pegelow, Ulrich Duesseldorf, DE 48 523
Zipfel, Johannes Duesseldorf, DE 56 383

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