Essential oils have a very high usage rate in our daily lives, and they can be seen everywhere in the process of daily maintenance and skin care. In addition to being used for facial maintenance, essential oils can also regulate human body functions and release environmental stress. Next, through this article, I will give you a detailed introduction to the processing techniques commonly used by cosmetic manufacturers for essential oil products.
Distillation method: Distillation method is steam distillation and vacuum distillation. The flavors of the essential oils produced are also different. With the continuous progress of the times, the distillation method has also been greatly improved. Take steam distillation as an example, it is to use plants The material is put into a distiller, and the plant is heated with steam to evaporate the essence of the plant and turn the essence of the plant into a steam state. After freezing, a mixture of oil and water is generated. Usually oil will float on top of water, because water is heavier than oil, so it is easy to separate oil from water at this time.
Liposuction: This method uses the physical properties of fat to absorb essential oils. Insert a piece of glass on the square frame, spread a thin layer of fat (lard or butter) on the glass, and spread a layer of fresh petals on the fat after a meal. After about 24 hours, the petals contained The essential oil will be all absorbed by the fat, turn the wooden frame over, the petals will automatically fall off, and then put another layer of fresh petals on the fat. Layers like this are stacked so that the petals are on the glass where the upper and lower layers are full of fat. It takes 3 months. When the fat is full of essential oils, the essential oils are washed off with alcohol, and the essential oils are dissolved in the alcohol by stirring with a machine. The essential oils are left after the alcohol containing essential oils evaporates. This method takes too much manpower and time, so liposuction is also the most expensive manufacturing method. Generally, the top roses, orange blossoms, and jasmine all use this method.
Extraction method: This method is specialized in the manufacture of citrus-lemon, orange, bergamot, grapefruit and other essential oils. First, the peel is chopped and squeezed so that the juice of the peel is squeezed out to penetrate into the sponge, and then squeezed to make the juice flow out, and then collected. This method is labor intensive and the cost is too high, so it is now all operated by machines.
Extraction method: In this method, the material is placed in a container and immersed in a solution (petroleum or petroleum spirit is used to process flowers, and ketone is used for rubber and resin), and then heated to extract the aromatic substances of the material from the solution, and then filter the paste. The essential oil is obtained by evaporation treatment. Essential oils such as sandalwood, frankincense, and myrrh are all refined using this method.
The above is the relevant knowledge about essential oil processing for you, I hope it will be helpful to you.