| 摘要 |
In the present invention, there are disclosed a cleaning mixture for removing waxes and mixtures of organic, particularly beeswax, paraffins and mixtures containing especially esters of saturated and unsaturated acids and free fatty acids and hydrocarbons, which contains as one main component an aqueous solution of ionogenic or non-ionogenic surface active substance, for instance of sodium laurylsulfate or triblock copolymer of poly(propylene glycol -block-ethylene glycol-block-propylene glycol), and as a second main component 10 to 40 percent by volume liquid aromatic hydrocarbon, whereby the concentration of the surface active substance in the aqueous solution is higher than quadruple of the critical micellar concentration and lower than 21.6 multiple thereof, and the liquid aromatic hydrocarbon is selected from the group consisting of toluene, xylene or mixtures thereof. Cleaning by the above-described cleaning mixture is characterized by application thereof at least once to a surface to be treated, leaving it to act for a period of at least two hours and subsequently rinsing the produced products by a water jet. |
