| 摘要 |
Cleaning compositions of pH 2-6 which comprise 1-30 %wt on product of an alkoxylated nonionic surfactant, less than 50 %wt of total surfactant of anionic surfactant and 0.005-5 %wt on product of a water soluble, anionic polymer having an average molecular weight of less than 1,000,000, wherein, the ratio of polymer:nonionic is 0.1:1 or less, said products being characterised in that: a) the ethoxylated nonionic surfactant is a material of the general formula: R- (EO)w-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C8-C18 alkyl or alkyl phenyl group; b) the composition further comprises a monocarboxylic fatty acid of general formula: R1-COOH wherein R1 is a C8-C18 alkyl group; c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2-[(EO)x(PO)y]-OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, y is 1-10, and R2 is a C8-C18 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula: R3-OH wherein R3 is a branched C8-C18 alkyl group. |
