Effervescent cleaning composition for use in fabric washing
View Patent ↗The present invention provides an aqueous effervescent liquid detergent composition which upon contact with water provides effervescent action, and which comprises at least 5% by weight of a surfactant and from 0.1 to less than 3% by weight of a volatile organic solvent selected from pentane, hexane, cyclohexane and diethylether. Said solvent is present in sufficient amount to provide the effervescent action, and has a higher solubility in an aqueous surfactant-containing composition than in water, the boiling point of said solvent being lower than the typical temperature during the washing process.
1. An aqueous isotropic effervescent liquid detergent composition for use in fabric washing which upon contact with wash liquor provides effervescent action, and which comprises 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, at least 5% by weight of a surfactant including fatty acid soap and from 0.1 to less than 3% by weight of a volatile organic solvent selected from the group consisting of pentane, hexane, cyclohexane and diethylether, said solvent being present in sufficient amount to provide the effervescent action in the wash liquor and having a higher solubility in an aqueous surfactant-containing composition than in water, and the boiling point of said solvent being lower than the typical temperature during the washing process.
2. A composition according to claim 1 , wherein said composition is contained in a non-pressurized container.
3. A composition according to claim 1 , wherein the boiling point of the volatile organic solvent is lower than 90° C., preferably lower than 60° C.
4. A composition according to claim 1 , wherein the volatile organic solvent is pentane or diethyl ether.
5. A composition according to claim 1 , wherein the volatile organic solvent is present at a concentration of from 0.1 to 2% by weight.
6. A composition according to claim 1 , wherein the surfactant is present at a concentration of from 5 to 70% by weight.
7. Fabric washing process for cleaning articles, whereby an effervescent action is provided upon contact with wash liquor by employing an aqueous effervescent liquid cleaning composition according to claim 1 .