Manufacturing procedure of perfume from oil to packaging | GP Bottles Manufacuring
Manufacturing procedure of perfume from oil to packaging | GP Bottles Manufacuring
1. Prepare essential oils
A - Extract from on-site or buy from local wholesalers.
Some essential oils take a long time to refine, and some must be completed in a very short time. For example, the sesame oil tree flowers that grow in Southeast Asia must be picked within a specific time and extracted immediately. Therefore, the extraction equipment is located around the sesame oil tree, and the distilled product is immediately stored in a large tank.
B - Quantity and quality
Quantity: Most perfumes include 50-100 ingredients, and some have more. 200 species are also very common. The dosage of each ingredient must be precisely controlled. In the highly developed modern era, new technologies such as computers are used to precisely control and store perfume raw materials.
Quality: The perfumer puts his nose into the state, and the table in front of him is full of bottles filled with essential oils and chemical compounds. Among them, he has to choose the raw materials to construct the new perfume. It may take several years to experience hundreds of scents and get a recipe. One kind of scent may affect another kind of scent, how to make a certain kind of scent obvious, or to ensure that one kind of raw material does not overshadow the effect of another kind. The overriding criterion is to meet the requirements of customers, and these requirements are sometimes quite difficult to meet.
C - Health and safety
The perfume industry as a whole takes a cautious attitude towards scented oils with strong flavors. The ingredients of perfumes must comply with internationally accepted environmental and health standards. Many raw materials, including some compounds, cannot be used without chemical restrictions. Some use other substitutes because signs of toxicity are found in those raw materials. Many perfumers are engaged in a kind of work, or make professional suggestions for fragrances in soaps, body washes, and air fresheners. These jobs are often more onerous.
2. Pretreatment: The raw materials for alcohol production: alcohol, essence, and water must be pure and free of impurities in order to ensure a clear appearance and a mild smell.
A - Pretreatment of alcohol: including purification and aging
Purification: Alkali reflux method and potassium permanganate oxidation method are added to alcohol to remove impurities.
Aging: Put a small amount of perfume in the purified alcohol and keep it sealed at 15 degrees for several months.
B - Fragrance pretreatment: Add a small amount of pretreated alcohol to the fragrance, and use it after aging for 1 month.
C - water pretreatment: distillation and sterilization to remove metal ions.
3. Mixing: Put alcohol, essence and water into a stainless steel or enamel, silver enamel, tin enamel container according to a certain ratio, stir and mix for a period of time. Function: Allow the impurities in the essence to fully precipitate, so as to improve the clarity of the finished product and the anti-turbidity under cold conditions.
4. Ageing: Put the mixed perfume into a closed container equipped with a safety valve for ageing. There are two kinds of aging of perfume, physical method and chemical method. The physical methods include mechanical stirring, air bubbling, infrared, ultraviolet light irradiation, ultrasonic treatment, and mechanical vibration. Chemical methods include air, oxygen or ozone bubbling oxidation, silver or silver chloride catalysis, tin or hydrogen reduction.
During the aging period, the smell of perfume gradually turns from rough to delicate and soft. It takes 3 months for the aging time, which can be adjusted according to factors such as production conditions.
5. Cooling: When the perfume encounters a lower temperature, it will become translucent or misty. After that, if it is heated again, it will no longer be clear, and it will remain turbid. Therefore, perfume must be frozen before being filtered.
6. Filtration: Some insoluble substances will precipitate out after aging and freezing, filter and remove to ensure its transparency and clarity. Filter presses are used, and filter aids such as diatomaceous earth are added to absorb the precipitated particles, otherwise the precipitates will block the filter cloth channels. After adding the filter aid, the perfume should be cooled to about 0°C and maintained at this temperature during filtration. The temperature of the filter press can be cooled by multiple cycles of the already cooled perfume. After filtering off the precipitate produced by aging and cooling, it can be returned to room temperature and filtered through a fine mesh cloth to ensure that the product remains clear and transparent during storage and use.
Note: Due to the use of filter aids during filtration, some fragrances may be adsorbed and cause the loss of aroma. This should be estimated in advance and compensated afterwards.
7. Toning: Adding color is generally after the filtering process, otherwise the color is easily absorbed by the filter aid, but it must be added after color comparison with the standard sample.
8. Product inspection: use instruments to compare colors, determine specific gravity and refractive index, and determine alcohol content by conventional methods.
9. Bottling: The bottle should be washed with distilled water. When bottling, leave some gaps at the neck of the bottle to prevent the solution in the bottle from being heated to expand and the bottle rupture during storage.
