Coconut oil/100 The first four items are warmed together and mixed slowly until foaming. Then the stirrer is switched off and the kettle left covered for some time. The sugar solution is prepared in a separate container or kettle by dissolving the sugar in water heated to 80'C. Any froth formed on the surface is removed. The next step is to add glycerin and then the warm sugar solution to the soap mass. This is carried out under constant stirring. At this stage, the free alkali content is adjusted. If it is found to be too high, coconut fatty acids are added. Roughly, every per cent of free NaOH corresponds to 5.3 per cent coconut fatty acids. The free alkali content should not be higher than 0.15 per cent as NaOH. The kettle is then covered again and left standing until the temperature drops to 60'C., at which point perfume and color are added. The color solution is prepared beforehand by dissolving water soluble color in hot water a
配制方法:
The soap proper may be made either by the semi-boiled or fitted process. If made according to the semi-boiled principle, the temperature during processing must be kept as low as possible, with ample time allowed for saponification. Upon completion of saponification, the sugar solution is added at the same temperature as the soap. When all of the ingredients have been added and the soap is thin and free from lumps, the alcohol is added, together with any coloring matter. The perfume is incorporated just before the soap is run into frames.