| 摘要 |
1. The use of a liquid composition for cleaning hard surfaces, the composition containing in aqueous or solventcontaining aqueous solution non-ionic surfactants, builders showing an alkaline reaction and water-soluble polymers and essentially consisting of : a) from 0.1 to 10% by weight of the non-ionic surfactants, b) from 0.01 to 2% by weight of the water-soluble polymers which comprise non-ionic, weakly anionic or cationic polymers from the group including polyvinyl alcohols, polyvinyl pyrrolidones, cellulose ethers, polysaccharides, proteins and polyacrylamides with average molecular weights of from 5000 to 10,000,000 and preferably from 20,000 to 2,000,000, or mixtures of these polymers, the quantity in which the polymer b) is present always being below that in which the non-ionic surfactant a) is present, and c) from 0.1 to 10% by weight of the alkaline-reacting inorganic or organic builders, and, in addition, being in the form of a solution in demineralized water or in mixtures of demineralized water and water-miscible organic solvents, with the proviso that no protection is claimed for the use of compositions containing (a) from about 0.05 to about 15% by weight of an anionic, non-ionic, ampholytic or zwitterionic surfactant or mixtures thereof ; (b) from about 0.5 to about 99% by weight of an organic or inorganic builder or mixtures thereof and (c) from about 0.03 to about 5% by weight of a mixture for the improved removal of dirt containing (1) a watersoluble or dispersible non-ionizing primary polymer material, namely (i) polyvinyl alcohols having a degree of hydrolysis of from about 60 to about 100% and a degree of polymerization of from about 100 to about 7000 or (ii) polyvinyl pyrrolidones having a degree of polymerization of from about 50 to about 6000 or (iii) mixtures thereof and (2) an ionizing polysaccharide salt, namely seaweed extracts, plant exudates, seed gums, plant extracts, animal extracts or biosynthetic gums, the ratio by weight of primary polymer material to polysaccharide salt amounting to between about 4:1 and 1:4. |
