JP6931018B2 - Spatial spraying method for aerosol-forming fragrance compositions - Google Patents

Description

The present invention relates to a method for spatially spraying an aerosol-forming fragrance composition.

Conventionally, in order to make a person perceive a fragrance in a specific limited space, a mixed fragrance or an fragrance solution obtained by dissolving the fragrance in ethanol, water, etc. is subjected to vibration pressure by an electro-mechanical conversion element, gas or liquid by an aerosol, etc. A method of releasing into a target space in the form of an aerosol finely divided by using a phase jet or the like is known. However, in general, a mixed fragrance or fragrance solution containing a plurality of fragrance components has a problem that it is difficult to make fine particles depending on the composition ratio and concentration of the fragrance components, and the fragrance tone that can be created is limited. When it is made into fine particles, the solvent that easily volatilizes first volatilizes, so the fragrance concentration gradually increases, and it becomes impossible to make fine particles in the middle, or the fragrance components that easily volatilize volatilize faster, so the composition of the fragrance becomes There was a problem that the fragrance gradually changed and the fragrance tone was not stable.

As a technique relating to a fragrance composition for atomizing a fragrance and releasing it into a space, a technique using a fragrance composition having a specific viscosity, ClogP, and surface tension optimal for atomizing the fragrance (Patent Document 1). In the method of atomizing the fragrance component on the vibrating plate, the fragrance component having a vapor pressure exceeding 0.008 mmHg is the main component, and the fragrance component having the lowest steam pressure is less than 2% of the entire fragrance composition, and the fragrance component vibrates without volatilization. A technique for minimizing the amount of fragrance component remaining on the plate (Patent Document 2), a system that combines a piezojet method fragrance atomization device and a small motor fan to direct the airflow from the fan above the horizontal surface. A technique using a fragrance composition in which the average value of the boiling point depending on the concentration is less than 200 ° C. (Patent Document 3) is known.

U.S. Patent Application 2015/250912 Special Table 2005-517520 International Publication No. 2018/19 1043 Pamphlet

However, all of the techniques described in Patent Documents 1 to 3 specify the fragrance component, the viscosity of the fragrance, the water-octanol partition coefficient (ClogP), the surface tension, the boiling point, etc. so that the fragrance composition can be easily atomized. It is a technology that classifies based on the physicochemical values of and combines specific fragrance materials, and the fragrance tones that can be created are limited. Further, in the techniques described in Patent Documents 1 to 3, the fragrance component released into the space (as described in Patent Document 2) is not directly carried to the observer's nose by the air flow, but is once indoors. It is intended that the fragrance will be released into the surrounding space after it adheres to and remains on the surface of the floor, walls, furniture, etc. It is not a technique for presenting.

On the other hand, recently, in video presentation facilities such as movie theaters and museums, and attraction facilities that use virtual reality technology, video viewers can see the scent suitable for one scene of the video on the spot. Technology that can be perceived in conjunction with is being developed, and it is an important technical issue to produce an aromatic space so that only a specific target person can perceive the scent only in a specific limited space. ..

The presentation of fragrance by spraying the fragrance as fine particles (aerosol) into the space allows the fragrance that easily volatilizes and the fragrance that does not easily volatilize to be released into the space at the same time. It is excellent in that it can be immediately perceived in the field. However, on the other hand, the scent that can be made into fine particles is restricted, and if the scent once released diffuses into the surrounding space and another scent is released in a nearby space, the scent will be mixed and a specific target. The problem of not being able to present a particular scent only to the person has not yet been solved.

Therefore, according to the present invention, when different scents are discharged in an aerosol state in separate spaces separated adjacently within a distance of several meters, the scents are not mixed and perceived. The present invention relates to a method for spatially spraying an aerosol-forming fragrance composition capable of simultaneously presenting various different scent variations in an adjacent space.

Therefore, as a result of diligent studies by the inventors, the relationship between the spatial concentration of individual fragrance compounds and the sensory intensity of odor (according to the Labeled Magnitude Scale), and the ease with which fragrance compounds volatilize into space (Kovats Index). By classifying fragrance compounds in consideration of the above and adjusting the content of each classification to a specific range, when an aerosol is formed and discharged into a space, it approaches within a short distance of several meters. It was found that different scents can be perceived at the same time without mixing the two scents in the separate spaces.

The present invention is a method of spraying a fragrance composition into a space as an aerosol, and the fragrance compound is classified according to the following classification criteria;
<Classification criteria>
When the discharged fragrance compound is discharged in the aerosol state under the condition that the discharged fragrance compound is uniformly diffused into the space from the discharge point, the sensory intensity by the Labeled Magnitude Scale calculated by Eq. (3) is the aerosol discharge port. Perfume compounds are classified into the following groups (A) to (D) based on the maximum discharge amount (μg) which is less than 1.0 at a point 1 m away from.

[In the formula, p, q and r indicate the variables determined for each fragrance compound, Kovats indicates the Kovats Index of the fragrance compound, and amount indicates the spatial discharge amount (μg) of the fragrance compound in one discharge as an aerosol. Indicates the distance (m) from the aerosol discharge port to the point where the fragrance is perceived. ]
Group (A): Perfume compound having the maximum discharge amount of 0.08 μg or more and 3 μg or less.
Group (B): A fragrance compound having a maximum discharge amount of more than 3 μg and 10 μg or less.
Group (C): Perfume compounds with the maximum discharge rate of more than 10 μg and 30 μg or less.
Group (D): In the case of classification based on the fragrance compound having the maximum discharge amount of more than 30 μg.
The content of the fragrance compound of group (A) in the fragrance composition is 0.035% by mass or less.
The content of the fragrance compound of group (B) in the fragrance composition is 0.23% by mass or less.
The content of the fragrance compound of group (C) in the fragrance composition is 0.8% by mass or less.
The content of the fragrance compound of group (D) in the fragrance composition is 9.7% by mass or less,
The total amount of all fragrance compounds consisting of groups (A) to (D) in the fragrance composition is 0.5% by mass or more.
The present invention provides a fragrance spraying method in which a fragrance composition prepared by using two or more fragrance compounds and a diluent in each group is sprayed into a space as an aerosol.

According to the fragrance spraying method of the present invention, when the fragrance composition is discharged into a space in an aerosol state, the fragrance is excellent only at a close distance within a few meters, and the scent is emitted at a distance of several meters from the discharge point. Since it is not perceived, it is possible to perceive different scents at the same time without mixing the scents of both in separate spaces that are close to each other within a few meters.

It is a figure which shows the Labeled Magnitude Scale (LMS).

[About Labeled Magnitude Scale (LMS)]
The Labeled Magnitude Scale (LMS) is a sensory intensity scale developed by BG Green (Chem. Senses., 1993, 18 (6), 683-702) by combining verbal markers and a logarithmic scale. LMS can directly and in detail measure the difference in sensory intensity depending on the measurement target, and is used for quantifying and comparing sensory intensity such as taste, smell, and touch. The LMS is labeled with 0 = "Barely detectable", 100 = "Strongest Imaginable" as shown in FIG. 1, and the sensory intensity ("Barely Detectable", "Weak", "Moderate", "Strong", "Very Strong") are labeled.

The strengths that the LMS values mean are shown below.
0-1.4: Almost no odor, 1.5-6.1: Weak odor, 6.2-17.2: Comfortable odor, 17.3-35.4: Strong odor, 35.5-53.3: Very strong odor, 53.4-100: Very strong odor

However, in the present invention, when selecting a fragrance compound, the maximum discharge amount of each fragrance compound was calculated with the upper limit of the sensory intensity of each fragrance compound by LMS at a point 1 m away as 1.0.

[About Kovats Index]
The Kovats Index shows a retention index in gas chromatography calculated based on the retention time of alkanes, and is also an index showing the susceptibility of fragrances to volatilization. In the present invention, the value of the Kovats Index is calculated by the method described in Kovats, E., Helv. Chim. Acta, 41, 1915 (1958). Common non-polar phase columns are supplied under various trademarks such as HP-1 (Hewlett-Packard), CP Sil 5 CB (Chrompack), OV-1 (Ohio Valley) and Rtx-1 (Restek). 100% dimethylpolysiloxane, as the polar column, 100% polyethylene glycol such as DB-WAX (Agilent) is preferred.

In the present invention, the fragrance compound is in an aerosol state under the condition that the fragrance composition does not dissipate to the outside of the observation target system due to forced convection of a circulator or the like and the discharged fragrance compound diffuses uniformly into the space from the discharge point. When discharged, the sensory intensity according to the Labeled Magnitude Scale (LMS) calculated by the following formula (3) is less than 1.0 at a distance of 1 m from the aerosol discharge port, in ascending order of maximum discharge amount (μg). It is classified into the following groups (A) to (D).

[In the formula, p, q and r indicate the variables determined for each fragrance compound, Kovats indicates the Kovats Index of the fragrance compound, and amount indicates the spatial discharge amount (μg) of the fragrance compound in one discharge as an aerosol. Indicates the distance (m) from the aerosol discharge port to the point where the fragrance is perceived. ]

Group (A): Perfume compound having the maximum discharge amount of 0.08 μg or more and 3 μg or less.
Group (B): A fragrance compound having a maximum discharge amount of more than 3 μg and 10 μg or less.
Group (C): Perfume compounds with the maximum discharge rate of more than 10 μg and 30 μg or less.
Group (D): A fragrance compound having a maximum discharge rate of more than 30 μg.

From the viewpoint that the fragrance composition used in the present invention is perceived only at a close distance within several meters and has excellent fragrance at that distance, when the fragrance composition of group (A) is contained, the fragrance composition is used. When the content of group (A) in the product is 0.035% by mass or less and the fragrance compound of group (B) is contained, the content of group (B) in the fragrance composition is 0.23% by mass or less, group (C). When the fragrance compound of (D) is contained, the content of group (C) in the fragrance composition is 0.8% by mass or less, and when the fragrance compound of (D) is contained, the content of group (D) in the fragrance composition is Prepared using two or more fragrance compounds and a diluent in each group so that the total amount of all fragrance compounds consisting of groups (A) to (D) is 9.7% by mass or less and 0.5% by mass or more. Will be done.

That is, the fragrance composition used in the present invention is a fragrance compound of another group that is not classified into any of the (A) group, (B) group, (C) group, and (D) group (the maximum discharge amount is 0.08). It does not contain less than μg of fragrance compounds, such as ethyl 2-methylbutyrate).

[Group (A): Perfume compound having the maximum discharge amount of 0.08 μg or more and 3 μg or less]
Examples of the fragrance compound belonging to the group (A) include cis-3-hexenol, limonene, linalool, damascenone, rose oxide, benzaldehyde, isoborneol, dihydromyrcenol and the like.

When the fragrance composition used in the present invention contains the fragrance compound of group (A), the content of group (A) in the fragrance composition should be perceived only at a close distance within several meters. Therefore, it is 0.05% by mass or less, preferably 0.045% by mass or less, more preferably 0.04% by mass or less, still more preferably 0.035% by mass or less, and from the viewpoint of excellent fragrance at the above distance. It is preferably 0.005% by mass or more, more preferably 0.08% by mass or more, and further preferably 0.1% by mass or more.

[Group (B): Perfume compound having a maximum discharge amount of more than 3 μg and 10 μg or less]
Perfume compounds belonging to group (B) include aldehyde C-14 peach, citral, terpinyl acetate, β-damascone, trans-2-hexenyl acetate, eugenol, flowhydral, cerestride, cis-3-hexenyl hexanoate, evanor. And so on.

When the fragrance composition used in the present invention contains a fragrance compound of group (B), the content of group (B) in the fragrance composition should be perceived only at a close distance within a few meters. Therefore, it is 0.4% by mass or less, preferably 0.35% by mass or less, more preferably 0.3% by mass or less, still more preferably 0.25% by mass or less, and from the viewpoint of excellent fragrance at the above distance. It is preferably 0.035% by mass or more, more preferably 0.04% by mass or more, and further preferably 0.05% by mass or more.

[Group (C): Perfume compound with the maximum discharge amount of more than 10 μg and 30 μg or less]
Perfume compounds belonging to group (C) include l-menthol, fruitate, α-damascone, ethyl safranate, fulactone, linalool oxide, amylcinnamic aldehyde, citronellyl acetate, dimethyloctenone, floramat (registered trademark), l- Examples thereof include carboxylic, nutcaton, helional, phenylethyl alcohol, rosephenone, camphor, ambroxane (registered trademark), and coumarin.

When the fragrance composition used in the present invention contains a fragrance compound of group (C), the content of group (C) in the fragrance composition should be perceived only at a close distance within a few meters. Therefore, it is 1.0% by mass or less, preferably 0.9% by mass or less, more preferably 0.85% by mass or less, still more preferably 0.8% by mass or less, and from the viewpoint of excellent fragrance at the above distance. It is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and further preferably 0.2% by mass or more.

[Group (D): Perfume compound having a maximum discharge amount of more than 30 μg]
Perfume compounds belonging to group (D) include gelaniol, methyl dihydrojasmonate, iso-e-super, linalyl acetate, allyl cyclohexylpropionate, diethyl malonate, o-tert-butylcyclohexyl acetate (otB.CH acetate), Tonalide®, Cycremax, Hexylcinnamicaldehyde, Lilard®, Mayor, Dimethylphenylethyl carbinol, benzyl benzoate, Fructate, Dihydroterpineol, Citronellol, Liliar, Nerol, Phenylethyl acetate, p-acetate tert-Butylcyclohexyl (ptB.CH acetate), benzyl acetate, cis-jasmon, indol, estragor, Philcentre®, Javanol®, Levosandre®, Sandal Mysole Core®, Examples thereof include sedrill methyl ether, ethyl vanillin, ethylene brushate, galaxolide, Musenon (registered trademark), pentalide (registered trademark), sandal synth and the like.

When the fragrance composition used in the present invention contains a fragrance compound of group (D), the content of group (D) in the fragrance composition should be perceived only at a close distance within a few meters. Therefore, it is 15% by mass or less, preferably 12% by mass or less, more preferably 10% by mass or less, still more preferably 9.7% by mass or less, and from the viewpoint of excellent fragrance at the above distance. It is preferably 3% by mass or more, more preferably 3.5% by mass or more, and further preferably 4% by mass or more.

The total amount of all fragrance compounds consisting of groups (A) to (D) in the fragrance composition is 0.5% by mass or more from the viewpoint of ensuring excellent fragrance standing at a close distance within several meters. It is preferably 0.6% by mass or more, more preferably 0.8% by mass or more, still more preferably 1% by mass or more, and preferably 20% by mass or less, more preferably from the viewpoint of being perceived only at the above distance. It is 10% by mass or less, more preferably 5% by mass or less.

The fragrance composition used in the present invention is prepared to have the above concentration by using two or more groups out of the groups (A) to (D) and a diluent. Examples of the diluent include ethanol, dipropylene glycol, glycerin, diethyl phthalate, 3-methoxy-3-methyl-1-butanol, 3-methoxy-3-methyl-1-butyl acetate, water and the like. The content of the diluent in the fragrance composition is the remaining amount of the fragrance composition excluding all the fragrance compounds consisting of the groups (A) to (D).

[Spray amount]
In the present invention, the amount of the fragrance composition described above sprayed into the space as an aerosol is preferably 1 mg or more, more preferably 3 mg or more, and further, from the viewpoint of being perceived only at a close distance within several meters. It is preferably 9 mg or more, and is preferably 45 mg or less, more preferably 30 mg or less, still more preferably 20 mg or less, from the viewpoint of making the fragrance stand out at the above distance.

[Spray device]
As the spraying device used in the fragrance spraying method of the present invention, an aerosol finely divided by using vibration pressure by an electric-mechanical conversion element, heating by an electric-heat conversion element, a gas-liquid two-phase jet flow by an aerosol or the like, etc. Any of the above forms can be used as long as it can be released into the target space.

Test Example 1 (Drivation of a formula for predicting the amount of vaporization of a fragrance compound)
The fragrance composition 1 shown in Table 1 was prepared into 10% by mass, 20% by mass, and 30% by mass ethanol solutions. These ethanol solutions were sprayed at 9.53 mg using a piezoelectric element type fragrance, and the sprayed gas was collected in a fluororesin bag (5 L). Of the collected gas, 400 mL was transferred to a fluororesin bag (1 L) and further diluted with 400 mL of air. Vaporized fragrances were collected using Tenax-TA (manufactured by GL Science) and a diaphragm pump (manufactured by GL Science, SP 208 Dual) and quantitatively analyzed by GC / MS.

Gas chromatography analysis conditions Adsorption tube: Tenax TA (manufactured by GL Science)
GC: 6890N (manufactured by Agilent Technologies)
Column: DB-WAX 60.0m x 250μm x 0.25μm
Carrier gas: Helium (116.5kPa, 1.1mL / min)
Column temperature: After holding at 40 ° C for 3 minutes, raise the temperature to 70 ° C at 6 ° C / min and 240 ° C at 4 ° C / min, and hold for 20 minutes.
MS: 5975B (manufactured by Agilent Technologies)

From the results of this quantitative analysis, it was found that the relationship between the amount of fragrance compound released from the fragrance (gas phase concentration; μg / L air) is expressed by the following equation (1) at the xm point.

[In the formula, Kovats is the Kovats Index of the fragrance compound, amount is the weight of the fragrance compound sprayed from the device (μg), and distance is the distance from the device to the object (m). ]

Test Example 2 (Drivation of intensity curve of each fragrance compound corresponding to gas phase concentration)
0.5 mL of each fragrance compound was introduced into a 3 L polyethylene odor bag (purchased from AS ONE Corporation), and odorless air was introduced. Headspace was recovered from the odor bag that had been allowed to stand overnight, and odor bags of various concentrations were prepared using another fluororesin bag.
The perfume volatilized in the fluororesin bag was collected using Tenax-TA and a sampling pump, and the head space in the bag was quantitatively analyzed by GC / MS.
A fluororesin bag with a known concentration was connected to a dilution / mixing device for odor identification (manufactured by Shimadzu Corporation), and the odor intensity for each concentration emitted from the device was evaluated by 14 specialized panels using LMS.
From the evaluation results, the sensory intensity corresponding to the gas phase concentration of the fragrance compound represented by the following formula (2) was obtained.

[In the formula, p, q and r indicate variables determined for each fragrance compound. ]

The coefficients p, q, and r are the values of the sensory intensity calculated by substituting the gas phase concentration obtained for each fragrance compound into the equation (2), which is the average value of the sensory evaluation of 14 specialized panels. It was determined by minimizing the sum of squares of the residuals between the predicted value and the measured value (least squares method) so as to approximate.
For the decision, the solver, which is an add-in program of Microsoft's Excel 2010 (ver14.0), which is a spreadsheet software program, was used.

By the formula (3) in which the formula (1) is substituted into the formula (2), the sensory intensity of the fragrance compound is calculated from the weight of the fragrance compound sprayed from the device. Using this formula, it is possible to calculate the amount of fragrance that can be seen at 0 m and the scent cannot be seen at any distance.

[In the formula, p, q and r indicate the variables determined for each fragrance compound, Kovats indicates the Kovats Index of the fragrance compound, and amount indicates the spatial discharge amount (μg) of the fragrance compound in one discharge as an aerosol. Indicates the distance (m) from the aerosol discharge port to the point where the fragrance is perceived. ]

Based on equation (3), the sensory intensity is 1.4 or more (perceived as a weak odor) at 0 m, and the sensory intensity is less than 1.0 at 1 m (well below LMS 1.4, almost no odor is felt). The spray amount of the fragrance compound is illustrated below.

Examples 1-3, Comparative Examples 1-2
A fragrance solution containing 5% by mass of the fragrance composition shown in Tables 3 to 6 in ethanol was prepared. 9.53 mg of the fragrance solution was sprayed using a piezoelectric element type fragrance device.
For these fragrance solutions, the intensity of the scent at distances of 0 m, 2 m, 3 m and 7 m from the outlet of the fragrance was evaluated according to the following 6-grade evaluation scale. The evaluation results are shown in Table 7.
0: Odorless 1: Smell that can be finally detected
2: Weak odor that tells you what the odor is 3: Easily perceptible odor 4: Strong odor 5: Strong odor

(Content of each group in 5% by mass solution)
Group (A):-
Group (B): 0.230% by mass
Group (C): 0.555% by mass
Group (D): 4.215% by mass

(Content of each group in 5% by mass solution)
Group (A):-
Group (B): 0.105% by mass
Group (C): 0.200% by mass
Group (D): 4.695% by mass

(Content of each group in 5% by mass solution)
Group (A):-
Group (B): 0.185% by mass
Group (C): 0.725% by mass
Group (D): 4.090% by mass

(Content of each group in 5% by mass solution)
Comparative Example 1
Group (A):-
Group (B): 0.183% by mass
Group (C): 0.718% by mass
Group (D): 4.049% by mass
Other group: Ethyl 2-methylbutyrate: 0.05% by mass

Comparative Example 2
Group (A):-
Group (B): 0.167% by mass
Group (C): 0.625% by mass
Group (D): 3.681% by mass
Other group: Ethyl 2-methylbutyrate: 0.5% by mass

* Ethyl 2-methylbutyrate contained in Comparative Examples 1 and 2 has a maximum discharge amount (μg) of 0.000021 μg in which the sensory intensity according to the Labeled Magnitude Scale is less than 1.0 at a point 1 m away from the aerosol discharge port. Yes, it is a fragrance that does not belong to any of the groups (A) to (D). When such a compound is used, the scent can be sensed even if the distance from the fragrance is 3 m or more.

Prescription Examples 1-4
A fragrance solution containing 5% by mass of the fragrance composition shown in Tables 8 to 11 in ethanol was prepared. By spraying 9.53 mg of the fragrance solution using a piezoelectric element type fragrance, it is possible to design a fragrance prescription in which the scent is recognizable at 0 m and the scent is not recognizable at 3 m.

(Content of each group in 5% by mass solution)
Group (A): 0.035% by mass
Group (B): 0.175% by mass
Group (C): 0.800% by mass
Group (D): 3.990% by mass

(Content of each group in 5% by mass solution)
Group (A): 0.015% by mass
Group (B): 0.070% by mass
Group (C):-
Group (D): 4.915% by mass

(Content of each group in 5% by mass solution)
Group (A): 0.002% by mass
Group (B): 0.055% by mass
Group (C): 0.415% by mass
Group (D): 4.528% by mass

(Content of each group in 5% by mass solution)
Group (A):-
Group (B): 0.035% by mass
Group (C):-
Group (D): 4.965% by mass

Prescription example 5
A fragrance solution containing 10% by mass of the fragrance composition shown in Table 12 in ethanol was prepared. By spraying 9.53 mg of the fragrance solution using a piezoelectric element type fragrance, it is possible to design a fragrance prescription in which the scent is recognizable at 0 m and the scent is not recognizable at 3 m.

(Content of each group in 10% by mass solution)
Group (A): 0.002% by mass
Group (B):-
Group (C): 0.300% by mass
Group (D): 9.638% by mass

By adjusting in this way, when the fragrance composition used in the present invention is actually formed into an aerosol and sprayed into the space, within a few meters, and even within a limited space of 1 m or less, within a few seconds. By eliminating the perception of the scent in a short period of time and then spraying another scent into the same space, the perceived scent can be easily switched.

Claims (1)

A method of spraying a fragrance composition into a space as an aerosol, in which the fragrance compound is classified according to the following classification criteria;
<Classification criteria>
When the discharged fragrance compound is discharged in the aerosol state under the condition that the discharged fragrance compound is uniformly diffused into the space from the discharge point, the sensory intensity by the Labeled Magnitude Scale calculated by Eq. (3) is the aerosol discharge port. Perfume compounds are classified into the following groups (A) to (D) based on the maximum discharge amount (μg) which is less than 1.0 at a point 1 m away from.

[In the formula, p, q and r indicate the variables determined for each fragrance compound, Kovats indicates the Kovats Index of the fragrance compound, and amount indicates the spatial discharge amount (μg) of the fragrance compound in one discharge as an aerosol. Indicates the distance (m) from the aerosol discharge port to the point where the fragrance is perceived. ]
Group (A): Perfume compound having the maximum discharge amount of 0.08 μg or more and 3 μg or less.
Group (B): A fragrance compound having a maximum discharge amount of more than 3 μg and 10 μg or less.
Group (C): Perfume compounds with the maximum discharge rate of more than 10 μg and 30 μg or less.
Group (D): In the case of classification based on the fragrance compound having the maximum discharge amount of more than 30 μg.
The content of the fragrance compound of group (A) in the fragrance composition is 0.035% by mass or less.
The content of the fragrance compound of group (B) in the fragrance composition is 0.23% by mass or less.
The content of the fragrance compound of group (C) in the fragrance composition is 0.8% by mass or less.
The content of the fragrance compound of group (D) in the fragrance composition is 9.7% by mass or less,
The fragrance composition does not contain a fragrance compound having a maximum discharge amount of less than 0.08 μg.
Wherein the perfume composition (A) ~ (D) the total amount of perfume compounds consisting of group 0.5 mass% or more,
A fragrance composition prepared by using two or more fragrance compounds and ethanol in each group is subjected to vibration pressure by an electro-mechanical conversion element, heating by an electric-heat conversion element, or an aerosol. A fragrance spraying method in which an aerosol is sprayed into a space of 1 mg or more and 45 mg or less by using a spraying device that can be discharged into a space in the form of an aerosol finely divided by using a liquid two-phase jet.

Images