| 摘要 |
The invention provides a hygienic cleaning composition of pH < 6 or pH > 8 which comprises: a) 0.01-30 wt.% on product of an ethoxylated nonionic surfactant, other than an alkyl phenol derivative, said surfactant having an HLB of 10-14 (this is typically an ethoxylated alcohol having a chain length of C8-C14 and 4-10 ethoxy groups per molecule), and, b) 1-30 wt.% on product of a C1-C5 linear or branched alcohol (this is typically selected from the group comprising propan-2-ol, propanol, ethanol and mixtures thereof). It is believed that the use of 1-30 wt.% of a C1-C5 linear or branched alcohol as a biocidal activity improving additive for the selected nonionic surfactants greatly improves the biocidal properties of the compositions under the pH conditions specified. The specification also provides a method of cleaning and disinfecting a hard surface which comprises the step of treating said surface with a cleaning composition as claimed. |
