Fragrance blend

Abstract

Fragrance blend, preferably for perfume, air care, body care and detergents, manufactured by: a. Retrieving a recipe (R) of a fragrance mixture to be produced from a catalog of recipes (K) stored in a storage medium (2); b. Provision of a dosing system (3) comprising i. a tank farm (31) with a large number of specifically assigned supply lines (32, 32'), each of which is filled with a specific raw material (RS, RS'), whose material parameters (P1, P2... Pn) are stored on the storage medium (2), and ii. a dosing station (4) with a plurality of dosing heads (41, 41'), each of the dosing heads (41, 41') being connected to one of the supply lines (32, 32'); c. Transfer of the retrieved recipe (R) to a control unit (5) of the dosing system (3) and dosing of the raw materials (RS, RS') of the retrieved recipe (R) into a mixing container (6) by means of the plurality of dosing heads (41, 41'), which are controlled sequentially or in parallel by the control unit (5), wherein d. each of the plurality of raw materials (RS, RS') is monitored during the dispensing of the respective raw material (RS, RS') of the requested recipe (R), whereby i. the individual weight (EG, EG') of each of the delivered raw materials (RS, RS') is monitored and the total weight (GS) of the delivered raw materials (RS, RS') is checked, and / or ii. by means of a sensor (7) upon detection of an air inclusion (L) by means of the control (5) the dispensing is interrupted and the actual dispensed quantity of the respective raw material (RS, RS') is stored on the storage medium (2) to avoid incorrect dosing, and wherein e. in case of an underdosage of the dispensed raw materials (RS, RS') with respect to the recipe (R), a manual redosage takes place.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a fragrance mixture. BACKGROUND OF THE INVENTION

[0002] The components that typically make up a fragrance mixture as the basis for perfumes or aromas are usually in liquid or solid form. Solid components can be of very different nature. They include powders, crystals, or pastes with very different physical properties. Solid components can vary greatly in size, and some may represent a larger quantity of material than is intended in the mixture; they must then be broken up before dosing. Some powders have a fine grain, while others are coarser. Liquid components can be very fluid, while others clump easily. Liquid components have a wide range of viscosities and sometimes require cooling or heating when processed. Manufacturing processes are known in practice in which fragrance mixtures are produced by manual mixing, dosing, and dispersing. PRESENTATION OF THE INVENTION

[0003] The production of a fragrance blend as the basis of a perfume or aroma, whether in the laboratory or in industrial production, requires extremely precise dosing of its constituent components. Even very small deviations in the ratios of these components can significantly alter the resulting olfactory or flavor impression. Typically, the liquid components of a fragrance blend are dosed first as the basis for the respective perfume or aroma, before solid components are added, typically ground into a powder, before the mixture is blended. This mixing or dispersing of the dosage serves to achieve the most uniform possible blending of the individual raw materials.

[0004] The problem with the production of fragrance blends is that recipes typically have to be created individually based on individual customer requests. This means that serial or batch production is typically not possible. The main source of quality defects in the largely manual production process to date is human error. For a single fragrance blend, up to several dozen raw materials are sometimes mixed together. Mixing up raw materials and incorrect dosages can reduce the quality of the fragrance blend or, in the worst case, render the blend unusable.

[0005] An object of the invention is to provide a fragrance mixture whose raw materials are precisely dosed in order to obtain a high-quality fragrance mixture.

[0006] The present invention relates to a fragrance mixture, preferably for perfume, air care, body care, and detergents. The fragrance mixture according to the invention is prepared by: • Retrieving a recipe for a fragrance mixture to be produced from a catalogue of recipes stored on a storage medium; • Providing a dosing system comprising a tank farm with a plurality of dedicated supply lines, each of which is filled with a specific raw material, the material parameters of which are stored on the storage medium, and a dosing station with a plurality of dosing heads, each of the dosing heads being connected to one of the supply lines; • Transfer of the called recipe to a control system of the dosing system and dosing of the raw materials of the called recipe into a mixing container by means of the plurality of dosing heads, which are controlled sequentially or in parallel by the control system, whereby • each of the plurality of raw materials is monitored during the delivery of the respective raw material of the requested recipe, whereby ◯ the individual weight of each of the raw materials delivered is monitored and the total weight of the raw materials delivered is checked, and / or ◯ by means of a sensor, when an air inclusion is detected by the control system, the dispensing is interrupted and the actually dispensed quantity of the respective raw material is stored on the storage medium in order to avoid incorrect dosing, and whereby • If the raw materials delivered are underdosed in relation to the recipe, manual re-dosing is carried out.

[0007] The recipes, which are usually created and tested by perfumers, are made available to customers in a catalog for retrieval. The recipes can be stored in a digital catalog on a database, as described in more detail below. The customer can then select one or more recipes from the catalog. After the selection is made, the corresponding recipe or recipes are usually transferred to a control system of the dosing system and placed in a queue of recipes to be executed. In addition to selecting the appropriate recipe, the customer also selects the desired container size at this point. Typical container sizes range from 5 kg to 5,000 kg.

[0008] The dosing system can have several dosing stations arranged one behind the other or in parallel to produce the fragrance mixture. Dosing stations arranged one behind the other are understood to be a series arrangement in which a mixing container is transported from one dosing station to the next downstream dosing station. Dosing stations arranged in parallel are understood to be an arrangement in which a portion of the raw materials of a fragrance mixture is dosed into a respective mixing container at a dosing station, and the contents of this mixing container are combined with the contents of at least one other mixing container at a collection point. There are two reasons for an arrangement with multiple dosing stations, among others.To efficiently produce fragrance mixtures in various container sizes, the dispensing of individual raw materials can be distributed among individual dosing stations, with a portion of the raw material quantity according to the recipe being dispensed at each dosing station. Alternatively or additionally, the dosing heads of a dosing station can be cooled or heated. As mentioned above, the raw materials can have a wide range of different viscosities. Liquid raw materials typically have a viscosity in the range of 0.01 mPas to 500 mPas.

[0009] For example, the dosing system can have a dosing station for processing raw materials cooled below room temperature and / or a dosing station for processing raw materials heated above room temperature and / or a dosing station for processing raw materials at room temperature. Solid substances can also be added.

[0010] The dosing system used to produce the fragrance mixture typically comprises a tank farm, which can be equipped with individual storage containers. This allows access to more than 2,000 different raw materials for the various recipes. To avoid contamination or air pockets, each of the numerous dosing heads is typically connected to a storage container via a supply line. Good results can be achieved if the tank farm's storage containers are arranged above the dosing heads so that the raw materials can be supplied by gravity. The raw materials, typically of both natural and synthetic origin, must be partially refrigerated to prevent premature spoilage or heated to facilitate processing. For this purpose, part of the tank farm can be housed in a cold storage chamber or a heated chamber.

[0011] Preferably, the temperature in the cooling chamber is kept at 7°C and in the heating chambers at between 40 and 60°C.

[0012] Raw materials are typically subjected to an incoming inspection before being stored in the tank farm. This inspection may include an incoming test, which typically includes measurements of density, refractive index, flash point, peroxide number (PON), fragrance, and color. Fragrance sampling is typically performed through a subjective test by a specialist who compares the fragrance of the current container of the raw material directly with a reference sample. If the delivered raw material passes the sample test, the raw materials are transferred to the appropriate storage location.

[0013] As described above, to produce the respective fragrance mixture, the recipe requested by the customer is typically transferred to the dosing system's control system. To enable efficient and time-saving dosing of the fragrance mixture, the raw materials of the respective recipe can be transferred in parallel into a common mixing container using the multiple dosing heads. A particularly efficiently mixed fragrance mixture can be achieved if the mixing container does not have to be changed between the dispensing of the first and last raw material. Preventing transfer processes not only reduces the risk of contamination but also reduces the cleaning effort required for the mixing containers and the production time for the fragrance mixture.

[0014] To achieve a high-quality fragrance blend and consistent quality, the release of the respective raw material from the requested recipe is monitored. Control is preferably carried out by weight. An important criterion for the permissible deviation is the impact factor of the respective raw material. This largely determines the strength of this raw material's impact on the odor perception of the corresponding fragrance blend. For raw materials with a high impact factor, the deviation should not exceed ± 3 percent by weight. For raw materials with a lower impact factor, a deviation of up to ± 12 percent by weight can be tolerated. The permissible deviation depends on the odor intensity of the raw materials. A team of perfumers determines the impact factor of the raw material.The permissible deviations in dosage depending on the impact factor are as follows: Impact factor 0 to 119: maximum permissible deviation ± 12 percent by weight, Impact factor 120 to 299 maximum permissible deviation ± 9 percent by weight; Impact factor 300 to 699 maximum permissible deviation ± 7 percent by weight; Impact factor 700 to 1299 maximum permissible deviation ± 5 percent by weight; Impact factor 2000 to 10000 maximum permissible deviation ± 5 percent by weight.

[0015] To achieve particularly efficient production, according to one embodiment, several raw materials can be dispensed in parallel. During dispensing, the individual weight of each of the dispensed raw materials is typically monitored and the total weight is checked. To avoid underdosing, the dispensing is monitored by a sensor. If an air pocket is detected by the sensor, the dispensing can be interrupted and the amount of the respective raw material already dispensed is recorded on the storage medium. This allows the actual amount dispensed to be determined for each individual raw material when several raw materials are dispensed in parallel. If the dispensing of a raw material is interrupted, the weight already dispensed is recorded and the difference between the amount of raw material already dispensed and the target weight can be manually added.

[0016] Each of the supply lines can have its own reservoir, which is filled until a predefined target volume is reached. The filling of the reservoir can be monitored by a sensor. Monitoring by a sensor makes it possible to ensure that the predefined volume is filled without the inclusion of impurities or air pockets. This ensures that the predefined amount of the respective raw material is actually contained in the respective reservoir. The reservoir can be designed in the form of a syringe. In order to refill the reservoir after the respective raw material has been dispensed, it is typically filled using a vacuum until the predefined target volume is reached.

[0017] Dispensing by the dosing heads is typically not based on the measured weight, but rather on the dispensed volume. The amount of each raw material specified by the called-up recipe, typically in grams / kilogram, is dispensed by one of the plurality of dosing heads in a volume-controlled manner. A portion of this raw material is transferred from the reservoir to one of the plurality of dosing heads and dispensed through this. The volume-based dispensing can be measured and controlled either over time, and therefore the volume flow. Alternatively, dispensing can be controlled via the measured distance traveled by a piston within the reservoir. The system stores the density for each raw material, which can be used to determine the weight from the volume. This means that the dispensed volume of each raw material can be used to determine the corresponding dispensed weight.

[0018] The reservoir is typically filled using negative pressure and emptied using positive pressure, with the negative pressure and / or positive pressure preferably being generated by a piston movable within the reservoir. To ensure that there are no deviations in the dispensed quantity due to unwanted thermal expansion of the raw material, production typically takes place at room temperature between 20° Celsius and 25° Celsius, preferably between 21° Celsius and 24° Celsius.

[0019] The raw materials are preferably dispensed using gravity. The dosing heads can be arranged vertically and have a closure element to control the dispensing of the respective raw material and prevent it from overflowing. Depending on the raw material being filled, the dosing heads can also be heated. To prevent both overflow and any remaining raw material from dripping from the dosing head, a screen can be arranged below the plurality of dosing heads. The screen is preferably rotatable and only releases the dosing head currently dispensing raw material.

[0020] Manual workstations can be located downstream or upstream of the dosing station with a plurality of dosing heads. Here, raw materials can be added to the fragrance mixture manually by weighing. The dosing system typically also has a mixing station with at least one mixer to mix the raw materials of the requested formulation. For this purpose, the fragrance mixture preferably remains in the mixing container and is mechanically blended by means of a rotor. Mixing the fragrance mixture also allows for the mixing of raw materials that do not or hardly dissolve in one another or chemically bond with one another. During mixing, at least one raw material is dispersed in at least one other raw material.

[0021] As mentioned above, the recipes can be stored in a digital recipe catalog on a database. The customer can then select one or more recipes from the recipe catalog. Below is an example excerpt of several recipes: Recipe ID Recipe identification Recipe description 1 448944-RN LAVENDER OIL 2 448015 TOP SENSITIVE 3 340834 WHITE AMBERY 4 340180 FIX MUSK 5 337066 JAMIE 6 852564 MUSK 7 239764 PINKY GRAPEFRUIT 8 236053 SUNNY FRUITS 9 233285-D VILLA FOGLIANO 10 338259 SUMMER MELON

[0022] After the selection has been made, the corresponding recipe(s) are typically transferred to a queue of recipes to be executed in a dosing station controller. For this purpose, the raw materials and the required quantity for the respective recipe are transferred to the dosing system. The following is an example extract of the raw materials in a recipe: Recipe identification Recipe description Component ID Component name Weight component [kg] form 337066 JAMIE 1905 BACDANOL 0.04 Liquid 337066 JAMIE 1170 CITRONELLOL 0.044 Liquid 337066 JAMIE 1051 ALDEHYDES C-14 0.02 Liquid 337066 JAMIE 1113 BENZYL ACETATE 0.04 Liquid 337066 JAMIE 1381 LINALOOL OXIDE 0.008 Liquid 337066 JAMIE 1722 ROSE OXIDE CO 0.008 Liquid 337066 JAMIE 1715 GALAXOLIDE 50 DPG 0.08 Liquid 337066 JAMIE 1564 VERTENEX 0.08 Liquid 337066 JAMIE 1478 Phenirate 0.08 Liquid

[0023] If a recipe requires one or more raw materials that are not available for automatic dosing in the dosing system, these are added manually in the same way as for subsequent dosing after the automatic dosing in the dosing system has been completed. FIGURE DESCRIPTION

[0024] Aspects of the invention are explained in more detail with reference to the exemplary embodiments shown in the following figures and the associated description. They show: Fig. 1 a flow diagram of the production of the fragrance according to the invention; Fig. 2 a plan view of a schematic diagram of a dosing system; Fig. 3 a block diagram of the production of the fragrance according to the invention; Fig. 4 a schematic representation of a reservoir during filling; Fig. 5 the reservoir according to Fig. 3 upon submission. DESCRIPTION OF THE EMBODIMENTS

[0025] Fig.Figure 1 shows a flow diagram of the production of the fragrance mixtures according to the invention, preferably for body care and detergents. Production comprises at least the following steps: Step 1: Provision of a dosing system 3, which typically comprises a tank farm with a plurality of dedicated supply lines, each filled with a specific raw material whose material parameters are stored on the storage medium. The dosing system 3 further comprises a dosing station with a plurality of dosing heads, each of the dosing heads being connected to one of the supply lines.

[0026] The recipes R, which are usually created and tested by perfumers, are made available to customers for retrieval in the catalog K. In the example shown, the recipes R are stored in a digital catalog K in a database. The customer can then select one or more of the recipes R from the catalog K. After the selection has been made, the corresponding recipe R or the recipes are transferred to a controller of the dosing system 3 in a queue of recipes to be executed. In addition to selecting the corresponding recipe R, the customer also selects the container size at this point. Typical container sizes range from 5 kg to 5000 kg.

[0027] In step II, the selected recipe R of a fragrance mixture to be produced is retrieved from a catalogue of recipes K stored in a storage medium.

[0028] In step III, the retrieved recipe R is transferred to the controller 5 of the dosing system 3 and in step IV, the raw materials RS, RS' of the retrieved recipe R are dosed into a mixing container by means of the plurality of dosing heads, which can be controlled sequentially or in parallel by the controller.

[0029] In order to achieve a high-quality fragrance mixture and consistent quality, the dispensing of the respective raw material of the called formulation is monitored in step V in parallel with step IV. The control is preferably carried out on a weight-related basis. An important criterion for the permissible deviation is the impact factor of the respective raw material. This largely determines the strength of this raw material's effect on the odor perception of the corresponding fragrance mixture. For raw materials with a high impact factor, the deviation should not be more than ± 3 percent by weight. For raw materials with a lower impact factor, a deviation of up to ± 12 percent by weight can be tolerated. Each of the plurality of raw materials RS, RS' is monitored during the dispensing of the respective raw material RS, RS' of the called formulation R, whereby the individual weight EG, EG' of each of the dispensed raw materials RS, RS' is monitored.

[0030] In addition, the total weight GS of the dispensed raw materials RS, RS' is checked in step VI in parallel with step V. If an air pocket L is detected by the sensor, dispensing is interrupted in step VII, and the actual dispensed quantity of the respective raw material RS, RS' is stored on the storage medium to prevent incorrect dosing. If the dispensed raw materials are underdosed, manual re-dosing is performed in step VIII with respect to the recipe.

[0031] Fig.Figure 2 shows a dosing system 3 for producing fragrance mixtures. To produce the respective fragrance mixture according to the recipe, the recipe requested by the customer is typically transferred to the control system of the dosing stations 4, 4', 4''. To enable efficient and time-saving dosing of the fragrance mixture, the raw materials of the respective recipe are transferred in parallel into a common mixing container 6 by means of the plurality of dosing heads 41, 41'. Particularly efficient production is achieved if the mixing container 6 does not need to be changed between the dispensing of the first raw material and the last raw material.

[0032] The dosing system 3 shown has three dosing stations 4, 4', 4'' arranged one behind the other, as well as a fourth dosing station 4''' arranged parallel thereto. The dosing stations 4, 4', 4'' arranged one behind the other are arranged in a row, with a mixing container 6 being transported from one dosing station 4, 4', 4'' to the nearest dosing station 4, 4', 4'' downstream. Parallel to this, in the parallel dosing station 4''', a portion of the raw materials of a fragrance mixture is dosed at the dosing station 4''' into another mixing container 6'. The contents of the two mixing containers 6, 6' are combined at the collection point 9.

[0033] The illustrated arrangement with multiple dosing stations 4, 4', 4'' has, among other advantages, that fragrance mixtures with various container sizes can be produced in a time-efficient manner. This allows the dispensing of individual raw materials to be distributed among each of the three dosing stations 4, 4', 4'' by dispensing a portion of the raw material according to the recipe at each of the dosing stations 4, 4', 4''. The dosing heads 41, 41' shown for the respective dosing station 4, 4', 4'' can be cooled or heated. As mentioned above, the raw materials can have a wide range of different viscosities.

[0034] The finished, dosed fragrance mixture is then fed to a mixing station 8. The mixing station 8 has at least one mixer 81 to distribute the raw materials of the requested formulation. For this purpose, the fragrance mixture remains in the respective mixing container 6 and is mechanically blended by means of a rotor. Mixing the fragrance mixture also allows for the mixing of raw materials that do not or hardly dissolve in one another or chemically bond with one another. During mixing, at least one raw material is distributed in at least one other raw material.

[0035] Fig.Figure 3 shows a block diagram of the production of the fragrance according to the invention. First, a recipe R of a fragrance mixture to be produced is retrieved from a catalog of recipes K stored in the storage medium 2 and transferred to the controller 5 of the dosing system 3. The dosing system 3 shown comprises a tank farm 31 with a plurality of storage containers 33, 33' with dedicated supply lines 32, 32', each filled with a specific raw material RS, RS', whose material parameters P1, P2,...Pn are stored on the storage medium 2.

[0036] To avoid contamination or air pockets, each of the plurality of dosing heads 41, 41' is typically connected to a storage container via a supply line 32, 32'. The illustrated storage containers of the tank farm 31 are arranged above the dosing heads 41, 41' so that the raw materials RS, RS' can be provided by gravity. The raw materials RS, RS' are typically of both natural and synthetic origin and must be partially stored refrigerated to prevent premature spoilage or heated to facilitate processing. For this purpose, part of the tank farm 31 can be housed in a refrigerated chamber or a heated chamber. The controller 5 of the dosing system 3 carries out the dosing of the raw materials RS, RS' of the retrieved recipe R into the illustrated mixing container 6 using the plurality of dosing heads 41, 41'.For this purpose, the dosing heads 41, 41' of the plurality of dosing heads 41, 41' can be controlled sequentially or in parallel by the controller.

[0037] In order to obtain a high-quality fragrance mixture, each of the plurality of raw materials RS, RS' is monitored during the dispensing of the respective raw material RS, RS' of the called-up recipe R. The total weight GS of the dispensed raw materials RS, RS' is checked by means of the scale 10. In addition, the individual weight EG, EG' of each of the dispensed raw materials RS, RS' is monitored individually and, in the case of parallel dispensing, the weight of each of the parallel dispensed raw materials RS, RS' is monitored. Upon detection of an air inclusion by means of the sensor 7, the dispensing is interrupted by the control unit 5 and the actually dispensed quantity of the respective raw material is stored on the storage medium 2 in order to avoid incorrect dosing, as in connection with Fig.5 is explained in detail. If the dispensed raw material is underdosed, manual reprocessing takes place in a subsequent step.

[0038] In order to avoid underdosing, the dispensing is monitored by sensor 7. If an air pocket is detected by sensor 7, not only is the dispensing interrupted, but the amount of the respective raw material RS, RS' already dispensed is also recorded on the storage medium 2. This allows the actual dispensed amount to be determined for each individual raw material when several raw materials RS, RS' are dispensed in parallel. If the dispensing of a raw material RS, RS' is aborted, the individual weight EG, EG' already dispensed of each raw material RS, RS' is compared with the target weight, and the difference between the amount of raw material already dispensed and the target weight can be manually added.

[0039] Fig. 4 and Fig.5 shows a schematic representation of a reservoir 42 of a dosing station 4. The supply line 32 connected to the dosing head 41 shown of the plurality of dosing heads has an independent reservoir 42. Fig.4 shows the filling process of the reservoir 42. The reservoir 42 is filled until a predefined target volume SV is reached. The filling of the reservoir 42 is monitored by sensor 7. Monitoring by sensor 7 makes it possible to ensure that the reservoir 42 is filled with the target volume SV of raw material RS, without the inclusion of impurities or air pockets. This ensures that the predefined amount of raw material RS is actually in the reservoir 42. The reservoir 42 shown has the shape of a syringe. In order to refill the reservoir after the raw material RS has been dispensed, it is filled by means of a negative pressure generated by the piston 43 until the predefined target volume is reached. By means of the negative pressure, the required amount of raw material is sucked into the reservoir through the supply line 32 until the target volume SV is reached again.

[0040] Fig.Figure 5 shows the dispensing of the raw material RS from the reservoir 42. The dispensing of the raw material RS by the dispensing head 41 is not weight-based, but volume-based. The amount of raw material RS specified by the called-up recipe in grams / kilogram is dispensed by the dispensing head 41 in a volume-controlled manner by dispensing a corresponding amount of this raw material RS from the reservoir 42 of the dispensing head 41. The system stores the density of the raw material RS, which can be used to determine the weight from the volume. To ensure that there are no deviations in the dispensed amount due to unwanted thermal expansion of the raw material RS, production typically takes place at a room temperature between 18° Celsius and 26° Celsius, preferably between 20° Celsius and 24° Celsius.

[0041] The raw materials RS are dispensed using gravity. The dosing head 41 shown is arranged vertically for this purpose and has a closure element 44 to prevent any overflow of the raw material RS. Optionally, the dosing head 41 shown can also be heated or cooled depending on the raw material RS to be filled. In order to prevent any remaining raw material RS from dripping off the dosing head 41 in addition to overflow, a baffle 45 is arranged below the dosing head shown. The baffle 45 shown is rotatable and only releases the dosing head 41 currently dispensing the raw material RS. The baffle 45 in the form of a disc with an opening is moved forward after the raw material RS has been dispensed and releases the dosing head that will be the next to dispense the raw material. LIST OF REFERENCE SYMBOLS 1 fragrance blend 2 storage medium 3 Dosing system 31 tank farms 32, 32' supply line 33, 33' storage containers 4, 4', 4'' dosing station 41, 41' Dosing head 42 Reservoir 43 pistons 44 locking element 45 aperture 5 Control 6 mixing containers 7 Sensor 8 mixing station 81 mixers 9 Assembly point 10 scales R Recipe K Catalog RS, RS' raw material P1, P2..Pn material parameters GS total weight EC, EC' individual weight L Air inclusion SV target volume

Claims

[1] Fragrance mixture, preferably for perfume, air care, body care and detergents, produced by: a. Retrieving a recipe (R) of a fragrance mixture to be produced from a catalogue of recipes (K) stored in a storage medium (2); b. Providing a dosing system (3) comprising i. a tank farm (31) with a plurality of dedicated supply lines (32, 32'), each filled with a specific raw material (RS, RS'), the material parameters (P1, P2... Pn) of which are stored on the storage medium (2), and ii. a dosing station (4) with a plurality of dosing heads (41, 41'), each of the dosing heads (41, 41') being connected to one of the supply lines (32, 32'); c. Transfer of the called recipe (R) to a control (5) of the dosing system (3) and dosing of the raw materials (RS, RS') of the called recipe (R) into a mixing container (6) by means of the plurality of dosing heads (41, 41'), which are controlled sequentially or in parallel by the control (5), wherein d. each of the plurality of raw materials (RS, RS') is monitored upon delivery of the respective raw material (RS, RS') of the called-up recipe (R), whereby i. the individual weight (EG, EG') of each of the delivered raw materials (RS, RS') is monitored and the total weight (GS) of the delivered raw materials (RS, RS') is checked, and / or ii. by means of a sensor (7) upon detection of an air inclusion (L) by means of the control (5), the dispensing is interrupted and the actually dispensed quantity of the respective raw material (RS, RS') is stored on the storage medium (2) in order to avoid incorrect dosing, and wherein e. if the dispensed raw materials (RS, RS') are underdosed with respect to the recipe (R), manual re-dosing is carried out. [2] Fragrance mixture according to claim 1, wherein each of the supply lines (32, 32') has a reservoir (42, 42') which is filled until a predefined target volume (SV) is reached and the filling of the reservoir (42, 42') is monitored. [3] Fragrance mixture according to claim 2, wherein the quantity of a raw material (RS, RS') specified by the called-up recipe (R) is dispensed by transferring a portion of this raw material (RS, RS') from the reservoir (42, 42') to one of the plurality of dosing heads (41, 41') in a volume-controlled manner and dispensing it through the latter. [4] Fragrance mixture according to claim 2 or 3, wherein the reservoir (42, 42') is filled by means of a negative pressure and emptied by means of an overpressure, wherein the negative pressure and / or the overpressure are preferably generated by means of a piston (43) movable within the reservoir (42, 42'). [5] Fragrance mixture according to one of the preceding claims, wherein the dosing heads (41, 41') are arranged vertically and each have a closure element (44) to control the dispensing of the respective raw material (RS, RS') and to prevent the respective raw material (RS, RS') from running on. [6] Fragrance mixture according to one of the preceding claims, wherein a rotatable aperture (45) is arranged below the plurality of dosing heads (41, 41') and only the dosing head (41, 41') currently dispensing raw material is released by the aperture (45). [7] Fragrance mixture according to one of the preceding claims, wherein the preparation takes place at a room temperature (RT) between 18° Celsius and 26° Celsius and, in addition to liquid raw materials with a viscosity between 0.01 mPas and 500 mPas, solid substances are also added. [8] Fragrance mixture according to one of the preceding claims, wherein the dosing system (3) has a dosing station (4, 4', 4'') for processing raw materials cooled below room temperature and / or a dosing station (4, 4', 4'') for processing raw materials heated above room temperature and / or a dosing station (4, 4', 4'') for processing raw materials tempered to room temperature. [9] Fragrance mixture according to one of the preceding claims, wherein the dosing system (3) comprises a mixing station (8) with at least one mixer (81) for mixing the raw materials of the called-up recipe (R) with one another.

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