Hard surface cleaning compositions

Abstract

An improved hard surface cleaning composition having an acidic pH having good soap scum stain removal capabilities. The composition of the present invention comprises: an acidic component comprising citric acid alone or in combination with citric acid selected from the group consisting of sorbic acid, acetic acid, boric acid, formic acid, maleic acid, adipic acid, lactic acid, hydroxysuccinic acid, malonic acid , glycolic acid, and mixtures thereof; at least one anionic surfactant; at least one thickener; at least one scrubbing agent; one or more optional components; Water; wherein, the pH value of the aqueous hard surface cleaning composition is less than or equal to 6.0.

Description

technical field [0001] The present invention relates to improved cleaning compositions, especially for cleaning hard surfaces, especially lime, rust and soap scum stains. Background technique [0002] Cleaning compositions are important commodities and they are widely used for removing dirt and grime from surfaces, especially useful "hard surfaces". Hard surfaces refer to surfaces commonly found in bathrooms, such as toilets, showers, bathtubs, tubs, sinks and other toilets, as well as countertops, walls, floors, etc. Various forms of undesirable residue are known to form in such washing environments, including hard water stains and "soap scum stains". Hard water stains are inorganic stains resulting from the deposition of salts commonly present in hard water, such as calcium or magnesium salts, and soap scum stains are the residue of fatty acid soaps, eg soaps based on alkaline salts of lower fatty acids. Fatty acids are known to precipitate in hard water due to the prese...

AI Technical Summary

Problems solved by technology

The compositions described in these patents are all claimed to be effective in removing soap scum stains from such hard surfaces, but have been found to be of limited use for other types of stains

[0004] However, the formulations of mo