Patent ID: 7012056

Claim:
An aqueous effervescent liquid cleaning composition for use in fabric washing which upon contact with wash liquor provides effervescent action, and which comprises from 10 to 50% of a surfactant, from 1 to 35% of a builder, selected from the group consisting of water soluble alkali metal phosphates, polyphosphates, borates, silicates, carbonates; polycarboxylates; water-soluble salts of phytic acid; water-soluble polyphosphonates; water-soluble salts of mellitic acid; carboxymethyloxysuccinic acid, salts of polymers of itaconic acid and maleic acid, tartrate monsuccinate, and tartrate disuccinate; amorphous and crystalline zeolites or aluminosilicates and a dissolved gas in a sufficient amount to provide the effervescent action, wherein the dissolved gas is an inorganic gas selected from the group consisting of nitrogen, oxygen, carbon dioxide, oxides of nitrogen and noble gases and is present in the composition at a concentration of from 0.001 to 5% by weight and having a higher solubility in an aqueous surfactant-containing composition than in water, wherein said composition is maintained in a non-pressurized container.