Vehicle fragrance composition

Abstract

To provide a new vehicle fragrance composition using a new fragrance, which is applicable for motion sickness prevention using the fragrance.SOLUTION: A vehicle fragrance composition contains: an essential oil derived from woody parts and / or leaves of one or more species of trees of Pinaceae Abies; and one or more compounds selected from dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styralyl acetate.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to vehicle fragrance compositions. [Background technology]

[0002] Motion sickness is an unpleasant symptom caused by stimulation of the semicircular canals and vestibule due to the swaying, acceleration, and deceleration of a vehicle, which causes a disturbance in the sense of balance and autonomic nervous system, resulting in headaches, dizziness, nausea, etc.

[0003] Motion sickness affects many people of all ages, but it is particularly prevalent among children, and can be a problem when traveling in groups at school, on family trips, or when using vehicles.

[0004] For motion sickness, there are known methods for suppressing motion sickness using various drugs and aromas such as perfumes. For example, it is known that the sense of anxiety caused by motion sickness can be reduced by inhaling air containing β-potassium olefin, which is an aromatic substance (Patent Document 1).

[0005] As a method of utilizing fragrance, it is known that motion sickness can be suppressed by the fragrance of a fragrance composition containing, for example, 0.01% by weight or more of hexyl acetate and 0.2% by weight or less of geranyl acetate (Patent Document 2).

[0006] However, although the use of aromas to suppress motion sickness is less likely to cause side effects such as drowsiness compared to pharmaceutical anti-motion sickness medications, people have different preferences for aromas, so there was a need for technology to suppress motion sickness using a variety of aromas. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2006-342062 A [Patent Document 2] JP 2017-178905 A Summary of the Invention [Problem to be solved by the invention]

[0008] Therefore, an object of the present invention is to provide a new fragrant vehicle fragrance composition that can be used for the suppression of motion sickness by utilizing fragrance. [Means for solving the problem]

[0009] As a result of intensive research to solve the above problems, the inventors discovered that a combination of an essential oil of a specific tree and a specific compound produces a new fragrance that can be used to suppress motion sickness, etc., and thus completed the present invention.

[0010] That is, the present invention is a vehicle fragrance composition characterized by containing essential oils from the wood and / or leaves of one or more types of trees of the genus Abies in the family Pinaceae, and one or more compounds selected from dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styrallyl acetate.

[0011] The present invention also provides an in-vehicle product comprising the above vehicle fragrance composition filled in an in-vehicle fragrance container. Effect of the Invention

[0012] The vehicle fragrance composition of the present invention has a new fragrance and is capable of regulating autonomic nerve disorders and suppressing motion sickness without causing side effects. The vehicle fragrance composition of the present invention can also suppress the odor of the vehicle. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 shows a microwave distillation apparatus. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The vehicle fragrance composition of the present invention (hereinafter referred to as "the composition of the present invention") contains one or more essential oils (hereinafter sometimes simply referred to as "essential oils") from the wood and / or leaves of one or more trees of the genus Abies in the family Pinaceae, and one or more compounds (hereinafter sometimes simply referred to as "compounds") selected from dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styrallyl acetate.

[0015] The composition of the present invention is for use in vehicles. Here, the term "for use in vehicles" particularly includes both those used in vehicles themselves such as cars, trains, airplanes, ships, etc., and those used by people, non-human animals, etc., riding in the vehicles.

[0016] The trees of the genus Abies of the family Pinaceae that are the raw material for the essential oil are not particularly limited, but examples thereof include Abies sachalinensis, Fir, Abies salicina, Abies veitchii, Abies mariesii, Abies veitchii, Balsam fir, Abies mitsunense, White fir, Fir amabilis, Abies sachalinensis, California red fir, Grand fir, Noble fir, etc. One or more kinds of these trees of the genus Abies of the family Pinaceae can be used. Among these trees of the genus Abies of the family Pinaceae, Abies sachalinensis and Fir are preferred, and Abies sachalinensis is more preferred.

[0017] The part of the tree of the genus Abies of the family Pinaceae is a woody part and / or a leaf part, preferably a leaf. The essential oil of the woody part and / or a leaf of the tree of the genus Abies of the family Pinaceae is not particularly limited as long as it is an essential oil obtained from one or more kinds of woody parts and / or a leaf of the tree of the genus Abies of the family Pinaceae, but for example, an oily fraction (essential oil) of a distillate obtained by subjecting the raw material to reduced pressure steam distillation is preferable. The oily fraction of the reduced pressure steam distillate has a refreshing fragrance and is highly palatable, even without the effort of concentration, purification, etc.

[0018] Heating during distillation may be performed using a general heater or the like, but microwave heating is preferred in terms of heating efficiency, and it is particularly preferred to heat by irradiating microwaves without adding water. By irradiating microwaves, water molecules contained in the plant are directly heated to generate water vapor, which acts as a mobile phase to distill the volatile components in the plant, so this distillation method is considered to include an element of reduced pressure distillation due to the boiling point of the volatile components, and an element of steam distillation.

[0019] Such a distillate by microwave irradiation can be obtained, for example, by using a microwave distillation apparatus described in the pamphlet of International Publication WO2010 / 098440. This microwave distillation apparatus is shown in Figure 1. In Figure 1, 1 is a microwave distillation apparatus, 2 is a distillation tank, 3 is a microwave heating device, 4 is a stirring bar, 5 is an air inlet pipe, 6 is a distillate outlet pipe, 7 is a cooling device, 8 is a heating control device, 9 is a pressure reducing pump, 10 is a pressure regulating valve, 11 is a pressure control device, 12 is a distillation target, and 13 is a distillate.

[0020] In this apparatus 1, the raw material, fir tree of the family Pinaceae, which is the object of distillation 12, is placed in a distillation tank 2, and while stirring with stirring blades 4, microwaves are radiated from a microwave heating device 3 mounted on the top surface of the distillation tank 2 to heat the raw material. This distillation tank 2 is connected to an air inlet 5 and a distillate outlet pipe 6. The air inlet pipe 5 introduces air or an inert gas such as nitrogen gas into the distillation tank 2, and this airflow is introduced from the bottom of the distillation tank 2. The distillate outlet pipe 6 leads the distillate from the raw material out from the top of the distillation tank 2.

[0021] The temperature and pressure inside the distillation tank 2 are measured by a temperature sensor and a pressure sensor (neither shown) attached thereto, and are adjusted via a heating control device 8, a pressure control device 11, and a pressure regulating valve 10, respectively.

[0022] The gaseous distillate discharged from the distillation tank 2 via the distillate outlet pipe 6 is converted into a liquid by the cooling device 7, and is obtained as a distillate 13. This distillate 13 contains an oil fraction 13a and an aqueous fraction 13b, of which the oil fraction (essential oil) 13a is separated and used as the active ingredient of the composition of the present invention.

[0023] The distillation may be performed with a pressure in the distillation tank 2 of 3 to 95 kPa, preferably 3 to 40 kPa, and more preferably 3 to 20 kPa, and the steam temperature is 40°C to 100°C. If the pressure is 3 kPa or less, the increase in the vapor pressure of the volatile components in the plant is suppressed, and the vacuum distillation element due to the boiling point of each component becomes dominant rather than the steam distillation element, and the components with the lower boiling points flow out in order, which is undesirable in that the extraction of components with a higher boiling point than water is not performed efficiently and that a large amount of high-boiling components with low repellency and poor aroma preference are extracted. If the pressure is 95 kPa or more, the temperature of the raw material increases, which is undesirable in that energy loss is large and oxidation of the raw material is promoted.

[0024] The distillation time may be about 0.2 to 8 hours, preferably about 0.4 to 6 hours. If it is less than 0.2 hours, many unextracted components in the plant remain, and if it is more than 8 hours, the raw material becomes almost dry, which may reduce the extraction efficiency.

[0025] Furthermore, the gas introduced into the distillation tank 2 may be air, but is preferably an inert gas such as nitrogen gas, helium gas, or argon gas, and the flow rate thereof may be about 0.001 to 0.1 times the volume of the distillation tank 2 per minute.

[0026] The oil fraction (essential oil) of the reduced pressure steam distillate of the xylem and / or leaves of trees of the genus Abies in the family Pinaceae obtained as described above can be used as is, but if necessary, it may be further concentrated or purified by conventional methods before use.

[0027] The composition of the present invention contains the above essential oil in an amount of 5% by mass (hereinafter simply referred to as "%") or more, preferably 5 to 30%.

[0028] The above-mentioned compound is selected from dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styrallyl acetate.These compounds can be used one or more, and preferably all of the compounds can be used.These compounds can be synthesized by known methods or commercially available products can be used.

[0029] The composition of the present invention contains the above compound (in total when two or more types are used) in an amount at least 0.3 times, and preferably 0.5 to 10 times, the mass of the essential oil of the wood and / or leaves of a tree of the genus Abies in the family Pinaceae.

[0030] The composition of the present invention further contains mint essential oil and / or eucalyptus essential oil. As the mint essential oil, one obtained by a known method or a commercially available product can be used. As the eucalyptus essential oil, one obtained by a known method or a commercially available product can be used.

[0031] The composition of the present invention contains the above-mentioned mint essential oil or eucalyptus essential oil in an amount of 5% or more, preferably 5 to 20%, (in total when two kinds are used).

[0032] The composition of the present invention may contain conventionally known ingredients, such as fragrances, surfactants, solvents, etc., in the form described below, so long as the effects of the essential oils and compounds described above are not impaired. The composition of the present invention may also be supported on a known carrier, such as wood, paper, cloth, resin, gel, etc.

[0033] Preferred embodiments of the composition of the present invention include the following. <Composition 1> 30-70% essential oil from the wood and / or leaves of one or more species of trees in the genus Abies of the Pinaceae family Dipentene 30~70% <Composition 2> 30-70% essential oil from the wood and / or leaves of one or more species of trees in the genus Abies of the Pinaceae family Isobornyl acetate 30~70% <Composition 3> 30-70% essential oil from the wood and / or leaves of one or more species of trees in the genus Abies of the Pinaceae family α-pinene 30~70% <Composition 4> 5-10% essential oil from the wood and / or leaves of one or more species of trees in the genus Abies of the Pinaceae family Dipentene 10~20% Isobornyl acetate 10~20% α-pinene 10~20% Linalool 20~30% Linalyl acetate 1~5% Styrallyl acetate 1~5% Mint essential oil 5~10% Eucalyptus essential oil 1~5%

[0034] The composition of the present invention can be used as it is for vehicles, but it is preferable to use it in the form of a product.The form of the product is not particularly limited, but since it is for vehicles, for example, the composition of the present invention is filled in an air freshener container for air conditioner louvers (a type of container in which the air freshener volatilizes with the wind of the air conditioner), a standing air freshener container, or other in-vehicle product, the composition of the present invention is impregnated into a sticker, tape, or other adhesive product, the composition of the present invention is filled in a spray container, or the composition of the present invention is filled in a spray container, or the composition of the present invention is filled in a container for application to the human body.Among these products, the composition of the present invention is preferably used as an in-vehicle product.

[0035] When making it into an in-vehicle product, for example, the composition of the present invention alone or in combination with a fragrance, a solvent, etc. may be filled into an in-vehicle fragrance container such as a fragrance container for air conditioner louvers, a standing fragrance container, etc. When filling into an in-vehicle fragrance container, the composition of the present invention may be supported on the above-mentioned known carrier, if necessary.

[0036] When a patch product is produced, for example, the composition of the present invention alone or in combination with a fragrance, a solvent, etc. may be impregnated into a tape, sticker, etc. for application.

[0037] When preparing a spray product, for example, the composition of the present invention alone or in combination with a fragrance, a surfactant, a solvent, water, etc. may be filled into a spray container or the like.

[0038] When making a product to be applied to the human body, for example, the composition of the present invention can be made alone or in combination with a fragrance, a surfactant, a solvent, a moisturizer, etc., and then filled into a container for application.

[0039] The composition of the present invention as described above can impart a new fragrance by being evaporated into the space of a vehicle, attached to clothing, or sprayed into the space and then inhaled through the nasal cavity or the like of a person, and can therefore be used, for example, to suppress motion sickness or suppress odors in vehicles.

[0040] In particular, children may become ill due to the smell of a vehicle, but the composition of the present invention can also suppress the smell of a vehicle, making it preferable for suppressing motion sickness in children. Furthermore, since the composition of the present invention is not a medicine-based sickness suppressant, it does not cause side effects such as drowsiness.

[0041] In the present invention, motion sickness refers to a condition in which, when riding in a vehicle, stimulation of the semicircular canals or vestibule due to the shaking, acceleration, deceleration, etc. of the vehicle, as well as unpleasant odors or odors inside the vehicle that recall memories of past motion sickness, causes a disturbance in the sense of balance and autonomic nerve dysfunction, resulting in headaches, dizziness, nausea, etc., which can be suppressed by the composition of the present invention. In the present invention, suppression of motion sickness refers to preventing or alleviating the symptoms of motion sickness.

[0042] In order for the composition of the present invention to exert its effects of suppressing motion sickness and suppressing vehicle odors, the composition should be used in an amount that allows people inside the vehicle to constantly sense the aroma of the composition of the present invention, and the amount is not particularly limited. For example, in the case of a four-seater car, the composition of the present invention should be evaporated in an amount of 0.005 g or more per hour inside the vehicle. EXAMPLES

[0043] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples in any way.

[0044] Manufacturing Example 1 Preparation of Abies sachalinensis essential oil: Todomatsu leaves were crushed with a crushing grinder (KYB Manufacturing Co., Ltd.), and about 50 kg of the crushed material was put into the distillation tank of a microwave steam distillation apparatus (Figure 1). The pressure in the distillation tank was kept under reduced pressure of about 20 KPa (steam temperature was about 67°C) while stirring, and microwaves were irradiated for 1 hour to obtain a distillate, and the oily fraction (hereinafter referred to as "Todomatsu essential oil") was separated. The amount of Todomatsu essential oil obtained was 180 mL, which was 0.34% of the input sample. In the subsequent tests, this Todomatsu essential oil was used as a vehicle fragrance composition.

[0045] Example 1 Preparation of vehicle fragrance composition: The fir essential oil prepared in Production Example 1 was mixed with the components shown in Table 1 to prepare a vehicle fragrance composition.

[0046] [Table 1] *In Product A, dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styrallyl acetate were obtained as blended fragrances.

[0047] Test Example 1 Evaluation of vehicle fragrance compositions: Four subjects who are prone to car sickness were asked to sniff the evaluation sample prepared in Example 1 at the nose while in a parked car, and evaluate the pleasantness / unpleasantness of the odor inside the car and the evaluation sample, the strength of the odor inside the car (bad odor), and whether the odor is likely to cause car sickness according to the following criteria. The results are shown in Tables 2 to 4 in the above order.

[0048] <Comfort / discomfort evaluation criteria> (Evaluation)(Content) -4: Extremely uncomfortable. -3: Very uncomfortable. -2: Unpleasant. -1: Somewhat uncomfortable. 0: Neither pleasant nor unpleasant. 1: Somewhat comfortable. 2: Pleasure. 3: Very comfortable. 4: Extremely comfortable.

[0049] <Evaluation criteria for the strength of odors (bad odors) inside the vehicle> (Evaluation)(Content) 5: Strong odor. 4: Strong odor. 3: Easily detectable odor. 2: A faint odor that makes it easy to identify what it is. 1: A smell that can barely be detected. 0: Odorless.

[0050] <Criteria for evaluating whether odors may cause car sickness> (Evaluation)(Content) 7: I strongly agree. 6: I think so. 5: I somewhat agree. 4: Neither. 3: I don't really think so. 2: I don't think so. 1: I don't think so at all.

[0051] [Table 2]

[0052] [Table 3]

[0053] [Table 4]

[0054] From the above results, it was found that by combining Todomatsu essential oil with compounds (Products A to D), the unpleasantness level, odor intensity, and odor that may cause car sickness in combination with the odor inside the car were significantly lower than those of eucalyptus essential oil (comparison product). In particular, it was found that the combination of Todomatsu essential oil and compounds (dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, styraryl acetate) with eucalyptus essential oil and peppermint essential oil (Product A) was the most effective overall.

[0055] Example 2 Preparation of in-vehicle products (standing type): Thirty pieces of wood measuring 12 mm square were impregnated with the vehicle fragrance composition (Product A) prepared in Example 1. These were placed in a container with a hole in the upper surface to obtain a free-standing type vehicle-mounted product.

[0056] Test Example 2 Motion Sickness Suppression Test: The in-car product obtained in Example 2 was installed in the drink holder of cars owned by six parents with children who are prone to car sickness. After that, the parents were asked to use the car as usual for two weeks, and during that time, adults were asked to evaluate the child's motion sickness and the vehicle odor (smell inside the car) using the following criteria. The evaluation items and evaluation criteria are described below. These results are shown in Table 5. In addition, adults were asked to freely evaluate their impressions of using this in-car product. The results are shown in Table 6.

[0057] <Symptoms of motion sickness in children> Evaluation Content ○: Improved compared to usual. -: Same as usual. ×: Worse than usual.

[0058] <Evaluation of vehicle odor> Evaluation Content ○: The smell of the vehicle has improved and is no longer bothersome. -: Same as usual. ×: The smell of the vehicle has worsened.

[0059] [Table 5]

[0060] [Table 6]

[0061] From the above results, it was found that the vehicle fragrance composition of the present invention improves the symptoms of motion sickness in children and also suppresses the odor of the vehicle.

[0062] Example 3 Preparation of in-vehicle products (air conditioner louver type): The vehicle fragrance composition (Product A) prepared in Example 1 was placed in an air conditioner louver fragrance container (a container similar to SHALDAN My Aroma Aroma for CAR (manufactured by S.T. Co., Ltd.)) to obtain an air conditioner louver-type in-car product.

[0063] Test Example 3 Motion Sickness Suppression Test: The in-car product obtained in Example 3 was installed on the air conditioner louvers of cars owned by eight parents with children. After that, they were asked to use the cars as usual for two weeks, and during that time, the children's motion sickness and the smell of the car (smell inside the car) were evaluated using the same criteria as in Test Example 2. These results are shown in Table 7. In addition, adults were asked to freely evaluate their impressions of using this in-car product. The results are shown in Table 8.

[0064] [Table 7]

[0065] [Table 8]

[0066] From the above results, it was found that the vehicle fragrance composition of the present invention improves the symptoms of motion sickness in children and also suppresses the odor of the vehicle.

[0067] Example 4 Preparation of patch product: The vehicle fragrance composition (product A) prepared in Example 1 was impregnated into the nonwoven fabric side of a nonwoven fabric sticker (teardrop shape, total length 3 cm x minor axis 2 cm) to obtain a patch product.

[0068] Test Example 4 Motion Sickness Suppression Test: The adhesive product obtained in Example 3 was attached to the edge of a mask. An adult male wore this mask and rode a train on one line for 1 hour and 30 minutes. Although he usually gets drunk within about 30 minutes, he did not get drunk at all until he arrived at his destination. He also did not feel sleepy during the ride.

[0069] Formulation Example 1 Preparation of spray product: A spray having the following formulation containing the vehicle fragrance composition (Product A) prepared in Example 1 was placed in a commercially available 150 ml trigger-type spray container to prepare a spray-type spray product. Active ingredient: Product F 10g Solvent: Ethanol 10g Surfactant: 3g Ion exchange water: 77g [Industrial Applicability]

[0070] The vehicle fragrance composition of the present invention can be used for suppressing motion sickness, etc. [Explanation of symbols]

[0071] 1 … … Microwave distillation apparatus 2 … … Distillation tank 3 … … Microwave heating device 4 … … Stirring splashes 5 … … Air flow inlet pipe 6 … … Distillate outlet pipe 7 … … Cooling device 8 … … Heating control device 9 … … Pressure reducing pump 10 ... ... Pressure regulating valve 11 ... ... Pressure control device 12 … … Object to be distilled 13 … … Extract 13a … … Oil fraction (essential oil) 13b … … Aqueous fraction

Claims

1. one or more essential oils of wood and / or leaves of trees of the genus Abies of the family Pinaceae; one or more compounds selected from dipentene, isobornyl acetate, α-pinene, linalool, linalyl acetate, and styrallyl acetate; A vehicle fragrance composition comprising:

2. 2. The vehicle fragrance composition according to claim 1, further comprising mint essential oil and / or eucalyptus essential oil.

3. 2. The vehicle fragrance composition according to claim 1, wherein the tree of the genus Abies of the family Pinaceae is selected from the group consisting of Abies sachalinensis, Fir, Abies salicina, Abies veitchii, Abies mariesii, Veitchii beech, Balsam fir, Abies mitsinoides, White fir, Amabilis fir, Abies sachalinensis, California red fir, Grand fir and Noble fir.

4. 2. The vehicle fragrance composition according to claim 1, wherein the content of essential oil from the wood and / or leaves of a tree of the genus Abies in the family Pinaceae is 5 to 30% by mass or more.

5. 2. The vehicle fragrance composition according to claim 1, which is used to suppress motion sickness.

6. 6. A vehicle-mounted product comprising a vehicle fragrance composition according to claim 1 filled in a vehicle-mounted fragrance container.

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