Spray compositions, spray products and aerosol products

Abstract

To provide spray compositions that have high emulsification stability at a high temperature even when an oil component and a polyhydric alcohol are blended and allow a soft mist to be sprayed with the wide pattern of injection.SOLUTION: Provided is an oil-in-water emulsion spray composition, the spray composition comprising: water; an oil component; a dihydric alcohol; a nonionic surfactant A that is a nonionic surfactant with an HLB of 12.0 to 16.0; and a nonionic surfactant B that is a nonionic surfactant with an HLB of 2.0 to 6.0, the mass ratio of the content of the oil component to the total content of the nonionic surfactants A and B in the spray composition (oil component / nonionic surfactant) being 2.2 or less, and the average particle size of the oil-in-water emulsion being 2000 nm or less.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present disclosure relates to spray compositions and spray and aerosol products using the spray compositions. [Background technology]

[0002] Conventionally, products that spray lotions and other products using compressed gas have been developed. In particular, spray products with a softer force and reduced spray noise are being considered, with the aim of spraying on the face.

[0003] For example, Patent Document 1 discloses a spray product that is a spray composition consisting of water and a surfactant, and that has a spray acceleration within a specific range. It also describes that the spray product does not produce a strong spray and produces a quiet spray sound. Patent Document 2 discloses a spray composition containing water or a mixed solvent of water and alcohol and a specific amount of surfactant, in which micelles are formed by the surfactant, and the luminous transmittance is controlled within a specific range. It is described that the spray composition produces little spray noise, and the composition is sprayed as a soft, well-dispersed mist, providing a good feel when used. Furthermore, Patent Document 3 discloses an aerosol preparation made from a lotion (made of pure water or pure water and water-soluble ingredients) as the base liquid, which contains an oil component, a nonionic surfactant with an HLB value of 8 to 18, and a polyhydric alcohol with a specific SP value. It is stated that this provides an aerosol preparation that produces a soft mist and a gentle spray sound. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-194196 [Patent Document 2] Japanese Patent Application Publication No. 11-236306 [Patent Document 3] Japanese Patent Application Laid-Open No. 2016-188199 Summary of the Invention [Problem to be solved by the invention]

[0005] However, it has been found that when an oil component for moisturizing or improving the feeling of use is emulsified and a polyhydric alcohol is blended, it is difficult to obtain a soft and fluffy mist. In particular, when a relatively high blend of oil component and polyhydric alcohol is used, the formulation as described in the above document still has problems with the softness of the mist and the width of the spray pattern.

[0006] Furthermore, it has been found that when an oil component and a polyhydric alcohol are blended as in Patent Document 3, they tend to separate when stored at high temperatures for a long period of time. In view of these problems, the present disclosure provides a spray composition that has high emulsion stability at high temperatures even when blended with an oil component or a polyhydric alcohol, and that can spray a soft mist with a wide spray pattern. [Means for solving the problem]

[0007] The present disclosure provides an oil-in-water emulsion spray composition comprising: The spray composition contains water, an oily component, a dihydric alcohol, a nonionic surfactant A having an HLB of 12.0 to 16.0, and a nonionic surfactant B having an HLB of 2.0 to 6.0, The total content of the nonionic surfactants A and B in the oily component in the spray composition The mass ratio (oil component / nonionic surfactant) of the content of A spray composition in which the average particle size of the oil-in-water emulsion is 2000 nm or less. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a spray composition that has high emulsion stability at high temperatures even when blended with an oil component or a polyhydric alcohol, and that can spray a soft mist with a wide spray pattern. DETAILED DESCRIPTION OF THE INVENTION

[0009] Unless otherwise specified, the expressions "XX to YY" or "XX to YY" representing a numerical range mean a numerical range including the lower and upper limits, which are the endpoints. When a numerical range is described in stages, the upper and lower limits of each numerical range can be combined in any way.

[0010] The spray composition contains an oily component. The oily component is not particularly limited, but is preferably at least one selected from the group consisting of ester compounds, hydrocarbon compounds, silicon compounds, oils and fats, and higher alcohols. From the viewpoints of long-term emulsion stability at high temperatures and a wide spray pattern, at least one selected from the group consisting of ester compounds and hydrocarbon compounds is more preferred.

[0011] Examples of ester compounds include fatty acid esters such as isopropyl myristate, butyl myristate, isocetyl myristate, octyldodecyl myristate, butyl stearate, ethylhexyl stearate, isopropyl isostearate, isopropyl palmitate, ethylhexyl palmitate, ethyl linoleate, butyloctyl salicylate, cetyl ethylhexanoate, and ethyl olivate (ethyl oleate); polyhydric alcohol fatty acid esters such as triethylhexanoin, propylene glycol monocaprylate, propylene glycol dicaprylate, trimethylolpropane triethylhexanoate, trimethylolpropane triisostearate, and tri(caprylic / capric acid)glyceryl; and polybasic acid esters such as diisopropyl adipate, diisopropyl sebacate, and diethyl sebacate.

[0012] Examples of hydrocarbon compounds include kerosene, mineral oil, squalane, liquid paraffin, and light isoparaffin. Silicon compounds include, for example, dimethicone, cyclopentasiloxane, and caprylyl methicone.

[0013] Examples of oils and fats include birch oil, rosehip oil, jojoba oil, tallow oil, sunflower oil, grapeseed oil, avocado oil, hazelnut oil, camellia oil, broccoli seed oil, babassu oil, baobab oil, soybean oil, olive oil, coffee bean oil, castor oil, rice bran oil, palm oil, palm kernel oil, tung oil, peach kernel oil, cherry oil, cranberry seed oil, tung oil, jasmine oil, shortening, salad oil, white-pressed oil, shiso oil, pecan nut oil, pistachio oil, perilla oil, kaya oil, apricot kernel oil, and ake. Examples of suitable oils include vegetable oils such as bean oil, corn oil, black mortar oil, macadamia nut oil, linseed oil, palm oil, sea buckthorn, cottonseed oil, hemp seed oil, grape oil, poppy seed oil, mustard oil, camellia oil, wheat germ oil, evening primrose oil, peanut oil, pumpkin seed oil, laurel oil, safflower oil, argan oil, meadowfoam oil, marula nut oil, pomegranate seed oil, coconut oil, neem oil, soybean oil, kiwi fruit seed oil, mongongo oil, and walnut oil; and animal oils such as lanolin, horse oil, mink oil, and squalene.

[0014] Examples of higher alcohols include hexyldecanol, isostearyl alcohol, octyldodecanol, decyltetradecanol, and oleyl alcohol. .

[0015] The ester compound is preferably at least one selected from the group consisting of isopropyl myristate, cetyl ethylhexanoate, triethylhexanoin, and isopropyl palmitate, and the hydrocarbon compound is preferably at least one selected from the group consisting of liquid paraffin and squalane.

[0016] The content of the oily component in the spray composition is preferably 0.030% by mass to 4.50% by mass. Within this range, an emulsion with a small particle size can be easily produced, and good emulsion stability and a wide spray pattern can be achieved.

[0017] The content of the oily component in the spray composition is more preferably 0.035% by mass to 4.00% by mass, even more preferably 0.10% by mass to 3.0% by mass, even more preferably 0.20% by mass to 2.50% by mass, especially preferably 0.30% by mass to 2.00% by mass, and particularly preferably 0.40% by mass to 1.00% by mass. With the spray composition of the present disclosure, even when the content of the oily component is increased to a certain extent, it is possible to spray a soft mist with a wide spray pattern.

[0018] The composition for spraying contains nonionic surfactant A, which is a nonionic surfactant having an HLB of 12.0 to 16.0 (preferably 12.5 to 15.0, more preferably 13.0 to 14.5), and nonionic surfactant B, which is a nonionic surfactant having an HLB of 2.0 to 6.0 (preferably 2.5 to 5.0, more preferably 2.7 to 4.5).

[0019] The combined use of the two types of nonionic surfactants A and B mentioned above achieves long-term emulsion stability at high temperatures and enables the spraying of a soft mist with a wide spray pattern. This is thought to be because the combination of two specific surfactants with different HLB values ​​increases the surfactant density lining up at the oil-water interfacial film.

[0020] The content of nonionic surfactant A in the spray composition is preferably 0.025% by mass to 3.00% by mass, more preferably 0.10% by mass to 2.00% by mass, even more preferably 0.20% by mass to 1.00% by mass, and even more preferably 0.30% by mass to 0.80% by mass. The content of nonionic surfactant B in the spray composition is preferably 0.020% by mass to 3.00% by mass, more preferably 0.05% by mass to 2.00% by mass, even more preferably 0.10% by mass to 1.00% by mass, and even more preferably 0.20% by mass to 0.80% by mass.

[0021] Furthermore, the mass ratio (A / B) of the content of nonionic surfactant A to the content of nonionic surfactant B in the spray composition is preferably 0.7 to 3.0. By keeping the mass ratio within this range, it becomes easier to reduce the emulsion particle size, making it easier to achieve long-term emulsion stability at high temperatures and a soft mist with a wide spray pattern. The mass ratio (A / B) is more preferably 0.8 to 2.0, even more preferably 0.9 to 2.0, still more preferably 1.0 to 1.7, and particularly preferably 1.1 to 1.6.

[0022] Here, the HLB value of a surfactant is calculated by the following Griffin method: In the following formula (1), "sum of formula weights of hydrophilic groups / molecular weight" is the mass % of the hydrophilic groups. (1) Griffin method: HLB value = 20 × (sum of formula weights of hydrophilic groups / molecular weight)

[0023] The nonionic surfactant A may be at least one selected from the following: polyoxyethylene hydrogenated castor oils such as PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-70 hydrogenated castor oil, and PEG-80 hydrogenated castor oil; polyoxyethylene alkyl ethers such as ceteth-10, ceteth-15, laureth-9, oleth-10, oleth-15, (C12-14) pareth-7, (C12-14) pareth-9, and (C12-14) pareth-12; polyglyceryl-6 laurate, polyglyceryl-10 laurate, polyglyceryl-10 myristate, and palmitic acid; Polyglycerin fatty acid esters such as polyglyceryl-10 acid, polyglyceryl-10 stearate, polyglyceryl-10 isostearate, polyglyceryl-10 oleate, and polyglyceryl-10 linoleate; polyoxyethylene sorbitan fatty acid esters such as polysorbate 40, polysorbate 60, and polysorbate 80; polyoxyethylene sorbitan fatty acid esters such as sorbeth-6 laurate, sorbeth-60 tetrastearate, sorbeth-40 tetraoleate, and sorbeth-60 tetraoleate.

[0024] The nonionic surfactant B may be at least one selected from the following: sorbitan monooleate, sorbitan dioleate, sorbitan trioleate, sorbitan sesquioleate, sorbitan monostearate, sorbitan distearate, sorbitan tristearate, sorbitan isostearate, sorbitan sesquistearate, and sorbitan monocaprate. , Mo Sorbitan fatty acid esters such as sorbitan nopalmitate, glycerin fatty acid esters such as glyceryl myristate, glyceryl stearate, glyceryl isostearate, and glyceryl oleate, and polyglycerin fatty acid esters such as polyglyceryl-2 stearate, polyglyceryl-2 oleate, polyglyceryl-2 isostearate, polyglyceryl-4 stearate, polyglyceryl-4 oleate, polyglyceryl-6 tristearate, polyglyceryl-10 pentastearate, polyglyceryl-10 pentaisostearate, and polyglyceryl-10 pentaoleate.

[0025] More preferably, the nonionic surfactant A is at least one selected from the group consisting of PEG-50 hydrogenated castor oil (HLB: 13.5), PEG-60 hydrogenated castor oil (HLB: 14.0), and ceteth-10 (HLB: 13.5). More preferably, nonionic surfactant B is at least one selected from the group consisting of sorbitan monooleate (HLB: 4.3), sorbitan sesquistearate (HLB: 4.2), and glyceryl stearate (HLB: 3.0).

[0026] The spray composition contains a dihydric alcohol. Unlike trihydric alcohols, the inclusion of a dihydric alcohol raises the cloud point of the surfactant, making it mutually soluble in water and facilitating adsorption of the surfactant to the oil-water interface, resulting in an emulsion with smaller particle size. This is believed to enable long-term emulsion stability at high temperatures and the spraying of a soft mist with a wide spray pattern.

[0027] The dihydric alcohol is preferably at least one selected from the group consisting of aliphatic diols having 1 to 8 carbon atoms, more preferably 2 to 6 carbon atoms. For example, at least one selected from the group consisting of propylene glycol, dipropylene glycol, 1,3-propanediol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, 2,3-butylene glycol, isopentyl diol, neopentyl glycol, pentylene glycol, and hexylene glycol is more preferred. At least one selected from the group consisting of dipropylene glycol and 1,3-butylene glycol is even more preferred.

[0028] The content of the dihydric alcohol in the spray composition is preferably 0.01% by mass to 40% by mass. 00% by mass. Within this range, it becomes easier to achieve long-term emulsion stability at high temperatures and a soft mist with a wide spray pattern. The content of the dihydric alcohol in the spray composition is more preferably 0.03% by mass to 35.00% by mass, even more preferably 0.05% by mass to 31.00% by mass, even more preferably 0.07% by mass to 25.00% by mass, and particularly preferably 0.10% by mass to 21.00% by mass. Within the above range, long-term emulsion stability at high temperatures becomes better.

[0029] The spray composition contains water. The content of water in the spray composition is preferably 50.00% by mass to 99.90% by mass, more preferably 60.00% by mass to 99.80% by mass, even more preferably 70.00% by mass to 99.50% by mass, still more preferably 80.00% by mass to 99.30% by mass, and particularly preferably 90.00% by mass to 99.00% by mass.

[0030] The spray composition is an oil-in-water emulsion (O / W emulsion). If an emulsion is not formed and the oily component is solubilized, a soft mist with a wide spray pattern cannot be achieved.

[0031] In addition, the average particle size of the oil-in-water emulsion must be 2000 nm or less. By keeping the size within the above range, long-term emulsion stability at high temperatures can be achieved. The average particle size of the emulsion can be controlled within the above range by adjusting the ratio of nonionic surfactants A and B, the content ratio of dihydric alcohol, the content ratio of oily component, and the ratio of oily component to nonionic surfactant. For example, by setting the oily component / nonionic surfactant (mass ratio) to 2.2 or less, the average particle size can be reduced and easily controlled within the above range. In addition, by setting the mass ratio of nonionic surfactants (A / B), the content ratio of oily component, and the content ratio of dihydric alcohol within the above ranges, the average particle size can be easily reduced.

[0032] The average particle size of the oil-in-water emulsion is preferably 1200 nm or less, more preferably 600 nm or less, even more preferably 300 nm or less, even more preferably 150 nm or less, and particularly preferably 100 nm or less. There is no particular lower limit, but it is preferably 10 nm or more, more preferably 30 nm or more, even more preferably 50 nm or more, even more preferably 60 nm or more, and particularly preferably 70 nm or more. Within the above range, the long-term emulsion stability at high temperatures is improved.

[0033] The average particle size of the emulsion is measured by the following method. The average particle size of the emulsion in the composition for spraying was measured with a laser diffraction / scattering particle size distribution analyzer (LA-920, manufactured by Horiba, Ltd.) at a temperature of the composition for spraying at 20° C. In the present invention, the average particle size refers to the average particle size on a number basis, and is defined as the 50% median diameter.

[0034] The mass ratio (oil component / nonionic surfactant) of the content of the oil component in the spray composition to the combined content of nonionic surfactants A and B must be 2.2 or less. By keeping the mass ratio within this range, a good balance between the oil component and the surfactant can be achieved, enabling long-term emulsion stability at high temperatures to be achieved.

[0035] The mass ratio (oil component / nonionic surfactant) is preferably 2.0 or less, more preferably 1.5 or less, and even more preferably 1.2 or less. There is no particular lower limit, but it is preferably 0.02 or more, more preferably 0.2 or more, even more preferably 0.5 or more, and even more preferably 0.8 or more. Within the above range, long-term emulsion stability at high temperatures is improved.

[0036] The mass ratio of the oily component to the dihydric alcohol in the spray composition (oily component / dihydric alcohol) is preferably 12.0 or less. By keeping the mass ratio within this range, an emulsion with a smaller particle size can be obtained, resulting in better long-term emulsion stability at high temperatures.

[0037] The mass ratio (oil component / dihydric alcohol) is preferably 8.0 or less, more preferably 6.0 or less, even more preferably 5.0 or less, and even more preferably 4.5 or less. There is no particular lower limit, but it is preferably 0.05 or more, more preferably 0.08 or more, even more preferably 0.10 or more, and even more preferably 0.20 or more. Within the above range, the long-term emulsion stability at high temperatures becomes better.

[0038] The spray composition may contain additives such as active ingredients, fragrances, antioxidants, preservatives, pH adjusters, thickeners, moisturizers, disinfectants, skin protectants (amino acids), vitamins, various extracts, deodorants, fresheners, UV absorbers, UV scattering agents, pest repellent ingredients, and others, to the extent that the above effects are not impaired. For example, alcohol may be added. Specific examples include the following. Lower alcohols (e.g., aliphatic monohydric alcohols with 1 to 3 carbon atoms, such as ethanol); trihydric or higher polyhydric alcohols (e.g., glycerin); pH adjusters (e.g., citric acid, lactic acid, triethanolamine, KOH, NaOH, etc.); rust inhibitors (e.g., ammonia water, ammonium benzoate, sodium nitrite, etc.); preservatives (e.g., parabens, phenoxyethanol); urea; minerals such as calcium, iron, and sodium; pigments; dyes, etc.

[0039] The method for producing the O / W emulsion, which is a spray composition, is not particularly limited, and any known method can be used, including a method of mixing an aqueous phase and an oil phase and dispersing the mixture using, for example, a homogenizer or an ultrasonic disperser.

[0040] The spray composition of the present disclosure is not particularly limited and can be applied to known spray products. The present disclosure provides a spray product in which the spray composition is filled in a spray container. The spray product may be any product that can spray the contents from a discharge port such as a valve in the form of a spray or mist. It may be a product that is sprayed using high-pressure gas such as compressed gas, or may be a product that is sprayed electrically or manually. The spray container used for the spray product is not particularly limited and includes known aerosol containers, pump spray containers, trigger spray containers, pump dispensers, trigger dispensers, etc. An aerosol container is preferred.

[0041] The spray composition is preferably an aerosol composition. An aerosol product using the spray composition will be described. The present disclosure provides an aerosol product in which the spray composition and a propellant are filled in an aerosol container as an aerosol composition. The aerosol container used for the aerosol product can be any of various known pressure-resistant containers. The structure for attaching the valve device can be appropriately selected depending on the type of pressure-resistant container.

[0042] Aerosol products are produced by filling an aerosol composition, which is a composition for spraying, into an aerosol container, i.e., a pressure-resistant container equipped with an aerosol valve (spray valve). For example, an aerosol product is produced by preparing an aerosol composition and filling the resulting aerosol composition and a propellant into an aerosol container. A so-called double container may be used, in which an inner container is provided inside the pressure-resistant container to separate the propellant from the aerosol composition. The mixing ratio of the aerosol composition and the propellant is preferably about 70 / 30 to 35 / 65 in mass ratio (aerosol composition / propellant) for liquefied gas. The ratio of the sol composition to the propellant is preferably about 99.9 / 0.1 to 98 / 2.

[0043] The form of ejection of the aerosol product is not particularly limited, but is preferably a spray or mist. The ejection mechanism of the aerosol product is also not particularly limited, and a known actuator capable of spraying in a spray or mist form may be employed. For example, an actuator may be used in which the aerosol composition passes through a flow path inside the actuator, generating a swirling flow of the aerosol composition, and ejecting the aerosol composition in a spray or mist form.

[0044] The propellant is not particularly limited, and may be a liquefied gas or a compressed gas. The aerosol product preferably contains a compressed gas. The compressed gas is not particularly limited, and any known gas that can be used in aerosol products can be used. The compressed gas is preferably at least one selected from the group consisting of carbon dioxide gas, nitrogen gas, nitrous oxide gas, argon, helium, and compressed air, and more preferably at least one selected from the group consisting of carbon dioxide gas and nitrogen gas.

[0045] The compressed gas is preferably filled so that the pressure inside the aerosol container (gauge pressure) at 25°C is 0.3 MPa to 1.0 MPa, and more preferably 0.6 MPa to 0.8 MPa. [Example]

[0046] The present invention will be specifically described below with reference to examples, but the present invention is not limited to the following examples.

[0047] <Examples 1 to 4, Reference Example> The raw materials other than water were placed in a glass beaker according to the formulation (% by mass) shown in Table 1 and mixed uniformly using a stirrer (500 rpm, 3 min). Water was then gradually added while stirring to obtain spray compositions of Examples 1 to 4. As a reference example, a composition using only water was also prepared.

[0048] [Table 1]

[0049] <Examples 5 to 28 and Comparative Examples 1 to 20> The same procedures as in Example 1 were carried out except that the formulations (mass%) were changed to those shown in Tables 2 to 4. The spray compositions of Comparative Examples 1 to 20 were obtained.

[0050] [Table 2]

[0051] [Table 3]

[0052] [Table 4] "Solubilized" indicates that the oil component was solubilized and no emulsion was formed. The values ​​for oil component / nonionic surfactant, oil component / dihydric alcohol, and nonionic surfactant A / B are mass ratios.

[0053] The raw materials used are as follows: Dipropylene glycol (ADEKA "DPG-RF") 1,3-Butylene Glycol (KH Neochem Co., Ltd. "1,3-Butylene Glycol-P") Glycerin (Kao Corporation "Concentrated Cosmetic Glycerin") PEG-50 Hydrogenated Castor Oil (Nikko Chemicals Co., Ltd. "NIKKOL HCO-50"), PEG-60 Hydrogenated Castor Oil (Nikko Chemicals Co., Ltd. "NIKKOL HCO-60"), PEG-30 Hydrogenated Castor Oil (Nikko Chemicals Co., Ltd. "NIKKOL HCO-30"), Ceteth-10 (Nikko Chemicals Co., Ltd. "NIKKOL BC-10") Ceteth-20 (Nikko Chemicals Co., Ltd. "NIKKOL BC-20") Sorbitan monooleate (Nikko Chemicals Co., Ltd. "NIKKOL SO-10V"), Sorbitan sesquistearate (Nikko Chemicals Co., Ltd. "NIKKOL SS-15V") Glyceryl stearate (HLB: 3.0) (Nikko Chemicals Co., Ltd. "NIKKOL MGS-BV2") Polyglyceryl-10 trioleate (Nikko Chemicals Co., Ltd. "NIKKOL Decaglyn 3-OV") Glyceryl stearate (HLB: 1.5) (Nikko Chemicals Co., Ltd. "NIKKOL MGS-F75V") Cetyl ethylhexanoate (Nikko Chemicals Co., Ltd. "NIKKOL CIO") Liquid paraffin (Sonneborn "CARNATION") Isopropyl myristate (Nikko Chemicals Co., Ltd. "NIKKOL IPM-EX") Triethylhexanoin (Nikko Chemicals Co., Ltd. "NIKKOL Trifat S-308")

[0054] Each of the resulting spray compositions and propellant (nitrogen gas) were filled into a pressure-resistant container equipped with an injection valve device at a mass ratio of spray composition:propellant = 99:1, and the internal pressure of the product was adjusted to 0.75 MPa. A button for compressed gas (inner diameter φ0.36 mm) was attached, and aerosol products of Examples 1 to 28 and Comparative Examples 1 to 20 were obtained. The resulting aerosol compositions and aerosol products were evaluated as follows. The results are shown in Tables 1 to 4.

[0055] (1) Emulsion stability (separation confirmation) The nebulization composition was placed in a 50 ml vial and stored in a constant temperature bath at 40° C. for 2 weeks as an accelerated test. The condition of the nebulization composition immediately after preparation, after 1 day (1D), after 1 week (1W), and after 2 weeks (2W) of storage was evaluated according to the following criteria. (Evaluation criteria) ○: No separation ×: Separation

[0056] (2) Spray pattern Each aerosol product was adjusted to 25°C in a thermostatic chamber and then sprayed onto a glass surface from a distance of 15 cm for 1 second. The area (approximately circular) where the aerosol composition adhered to the glass surface was defined as the spray pattern, and the length x width (mm) of the spray pattern was measured. The spray was positioned horizontally to the glass surface, and the spray was performed perpendicular to the glass surface. The average value of three tests was used.

[0057] (3) Injection angle Based on the measured values ​​of the spray pattern, the spray angle was calculated using the following formula. Injection angle (θ)=2×tan -1 (b / a) a: Distance between each product and the glass surface (150mm) b: Radius of spray pattern for each product (mm)

Claims

1. 1. A spray composition of an oil-in-water emulsion comprising: The spray composition contains water, an oily component, a dihydric alcohol, a nonionic surfactant A having an HLB of 12.0 to 16.0, and a nonionic surfactant B having an HLB of 2.0 to 6.0, the mass ratio of the content of the oily component to the total content of the nonionic surfactants A and B in the spray composition (oily component / nonionic surfactant) is 2.2 or less; the mass ratio (A / B) of the content of the nonionic surfactant A to the content of the nonionic surfactant B in the spray composition is 0.7 to 3.0; A spray composition, wherein the oil-in-water emulsion has an average particle size of 2000 nm or less.

2. 2. The spray composition according to claim 1, wherein the mass ratio (oil component / dihydric alcohol) of the content of the oil component to the content of the dihydric alcohol in the spray composition is 12.0 or less.

3. the content of the nonionic surfactant A in the spray composition is 0.025% by mass to 3.00% by mass, 3. The spray composition according to claim 1, wherein the content of said nonionic surfactant B in said spray composition is 0.020% by mass to 3.00% by mass.

4. The spray composition according to any one of claims 1 to 3, wherein the content of the oily component in the spray composition is 0.030% by mass to 4.50% by mass.

5. The spray composition according to any one of claims 1 to 4, wherein the content of the dihydric alcohol in the spray composition is 0.01% by mass to 40.00% by mass.

6. 6. The spray composition according to claim 1, wherein the oil-in-water emulsion has an average particle size of 10 nm or more and 1200 nm or less.

7. The spray composition according to any one of claims 1 to 6, which is an aerosol composition.

8. A spray product in which a spray composition is filled in a spray container, A spray product, wherein the spray composition is the spray composition according to any one of claims 1 to 6.

9. An aerosol product in which an aerosol composition and a propellant are filled in an aerosol container, An aerosol product, wherein the aerosol composition is the spray composition according to any one of claims 1 to 6.

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