| abstract |
The present invention is concerned with alkaline, cleaning concentrates, and cleaning solutions, comprising (i) alkali metal hydroxide, (ii) active chlorine source, (iii) water-soluble copolymer comprising monomer units of monoethylenically unsaturated dicarboxylic acid and at least one comonomer selected from monoethylenically unsaturated monocarboxylic acids and carboxyl-free monoethylenically unsaturated monomers, and, optionally, (iv) alkali metal silicate. These cleaning concentrates/solutions are useful for the cleaning of food soils, and more specifically are useful for the removal of milk soils from cold and hot surfaces without the use of phosphate builders. |