Monday, September 20, 2010

Various Techniques Used For Making Perfumes

As there is wide usage of the chemicals all over the world, perfumes are to be manufactured in bulk and also the work behind preparing the perfume is also difficult. There are many processes which are to be followed while preparing the perfumes. There are different processes which are to be followed right from the fragrance extracting. To meet the present needs of perfume different methods are being developed for extraction, conservation and also to get the best one.

Innovations have increased in the modern chemistry for getting the natural fragrance from the laboratory.


Distillation: This is the first and the foremost method which is to be done during the preparation of perfume. The perforated tray, which contains the holes is placed at the upper part of the still and flowers and the plants which are used for preparing the perfumes are placed on the top of the dry and the below part is filled with the water which is used for boiling. Because of the boiling the steam is obtained. The steam now passes through the upper part of the tray and scent of flowers and the plants is being captured and is sent into the cooling equipment for cooling. Then by the process of refrigeration, the mixture is condensed. Thus the water and essential oils mixture is stored in bottles called Florentine flasks. Because of the variance in the densities of two liquids, these Florentine flasks have two separate liquids. Then the essential oils are raised to the surface and are used for the perfume preparation. The remaining scented waters which are being left after distillations are used for other purposes.

Absorption: It is used in coordination with the animal fat for absorbing the odors. There are two types of absorption hot and the cold absorptions. In hot absorption technique, flowers will be placed on heated fats and oils. Then filtration is done for obtaining the scents. The pomades of perfume are washed with alcohol for separating the fats from the perfumes. The cold absorption is done for the jasmine, tuberose, daffodils which cannot bear heat. Here the cold smell less fat is spread on the glass and the fat is covered with the flowers, and the flowers are changed regularly until the fat gets the fragrance. The fat is eliminated using the alcohol, and the perfume is collected.

Process of extraction: It is very expensive and inflammable one. The fragrance bearing part is mixed with the solvent and then it is evaporated. The procedure is as follows. The fragrance part is placed in the extractors, and until the fragrance is taken into the solvent, repeatedly. Earlier ether was used and now hexane and ethanol are being used. After the processes of decantation, filtrate of the solvent is evaporated. With the result of these processes, paste which is highly fragrant is obtained. This mixture is called the resinoid or the concrete based on the usage of flowers or dried mosses. Then the mixture is washed with alcohol continuously in the hitting device called beater and then chilled to get pure perfume.

The other perfume making techniques like Cold expression, Infusion, gas chromatography, head space techniques can also be used for effective preparation of perfumes.

No comments: