Dishwashing method and detergent composition therefor
AssigneeDeeay Technologies Ltd.
InventorNir Avram
Life of this patent
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Abstract
A dishwashing method is dislosed wherein two detergent compositions, one being alkalinic and the other acidic are applied in sequence onto the dishes. The liquid compositions are applied onto the dishes directly without or with only a moderate dilution such that once applied onto the dishes they input respective alkalinic and acid pH's on the surface of the dishes.
Claims12
A dishwashing method comprising:
- (a) rinsing with water,
- (b) applying a first liquid detergent composition to the dishes,
- (c) rinsing with water,
- (d) applying a second liquid detergent composition to the dishes, and
- (e) rinsing with water;
- one of said first or said second detergent compositions being an alkalinic detergent composition having pH above about 11 and the other of the detergent compositions being an acidic detergent composition having pH above about 4;
- the liquid detergent compositions being applied to the dishes without dilution or after being diluted with water such that once applied to the dishes the compositions impart an acidic or alkalinic pH, respectively, to the surfaces of the dishes.
A detergent system for use in dishwashing, comprising two liquid detergents, each being applied in a different step of the dishwashing sequence, one of which being an alkalinic detergent composition having pH above about 11 and the other being an acidic detergent composition having pH below about 4.
Dependencies are inferred from the claim text.