spray products

Abstract

To provide a spray product that has excellent dryability and is highly safe to a flame.SOLUTION: A spray product comprises a spray composition comprising stock solution and compressed gas, and a spray container to be filled with the spray composition. The stock solution comprises solvent containing hydrofluoroolefin with a boiling point of 5-40°C, and alcohol. The compressed gas is dissolved in the stock solution by 0.01 g / mL or more at 25°C. The spray container comprises a valve provided with a vapor phase introduction hole for introduction of the vapor phase of the spray composition.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a spray product, and more particularly to a spray product that has excellent drying properties and is highly flame safe. [Background technology]

[0002] Conventionally, spray products with excellent drying properties have been developed. Patent Document 1 discloses a spray composition containing a concentrate containing a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol, and a compressed gas. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-24786 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the spray composition described in Patent Document 1 has an issue of providing a cooling sensation. Therefore, the spray composition described in Patent Document 1 needs to have a large spray amount per unit time and a large particle diameter. Furthermore, the spray composition described in Patent Document 1 contains a large amount of alcohol, so there is room for improvement in terms of safety against fire.

[0005] The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a spray product that has excellent drying properties and is highly safe against flames. [Means for solving the problem]

[0006] The present invention, which solves the above problems, mainly includes the following configurations.

[0007] (1) A spray product comprising a spray composition comprising a concentrate and compressed gas, and a spray container filled with the spray composition, wherein the concentrate contains a solvent containing a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol, and the compressed gas is dissolved in the concentrate at 0.01 g / mL or more at 25°C, and the spray container is equipped with a valve provided with a gas phase introduction hole for introducing the gas phase of the spray composition.

[0008] According to this configuration, the concentrate contains a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol. Therefore, the compressed gas can be dissolved in the concentrate at a predetermined concentration. Furthermore, the spray container is equipped with a valve provided with a gas phase introduction hole. By spraying the spray composition from such a spray container, the sprayed particles (spray particles) become finer, which easily adhere to and penetrate hair or skin and easily diffuse in space. Furthermore, the spray particles have excellent drying properties. Therefore, the spray particles are less likely to drip when sprayed on hair or skin, and do not wet the floor when sprayed in space. Furthermore, the spray product allows the amount of spray per unit time to be adjusted, making it safer against fire.

[0009] (2) The spray product described in (1), wherein the compressed gas includes at least one of carbon dioxide gas and nitrous oxide.

[0010] With this configuration, the compressed gas is easily dissolved in the concentrate to a predetermined concentration. As a result, the spray product tends to produce finer spray particles, which easily adhere to and penetrate hair and skin and easily diffuse in air. The spray particles also have superior drying properties. Therefore, the spray particles are less likely to drip when sprayed on hair or skin, and do not wet the floor when sprayed in air. Furthermore, the spray product's spray amount per unit time can be adjusted, making it safer against fire.

[0011] (3) The spray product according to (1) or (2), wherein the content of the solvent in the concentrate is 50 to 99% by mass.

[0012] With this configuration, the compressed gas is easily dissolved in the concentrate to a predetermined concentration. As a result, the spray product tends to produce finer spray particles, which easily adhere to and penetrate hair and skin and easily diffuse in air. The spray particles also have superior drying properties. Therefore, the spray particles are less likely to drip when sprayed on hair or skin, and do not wet the floor when sprayed in air. Furthermore, the spray product's spray amount per unit time can be adjusted, making it safer against fire.

[0013] (4) The spray product according to any one of (1) to (3), wherein the mass ratio of the hydrofluoroolefin having a boiling point of 5 to 40°C to the alcohol is 50:50 to 99:1.

[0014] With this configuration, the compressed gas can be easily dissolved in the concentrate to a predetermined concentration, resulting in finer spray particles and superior drying properties.

[0015] (5) A spray product described in any one of (1) to (4), wherein the valve is provided with a liquid phase introduction hole for introducing the liquid phase of the spray composition, and the area ratio (Vt / Lt) of the cross-sectional area (Vt) of the gas phase introduction hole to the cross-sectional area (Lt) of the liquid phase introduction hole is 0.05 to 0.5.

[0016] In this configuration, the spray product can mix compressed gas into the spray composition to be sprayed, making the spray particles finer. Also, the spray amount per unit time of the spray product can be adjusted, making it safer against fire. [Effects of the Invention]

[0017] According to the present invention, a spray product having excellent drying properties and high flame safety can be provided. DETAILED DESCRIPTION OF THE INVENTION

[0018] [Spray product] One embodiment of the spray product comprises a spray composition comprising a concentrate and compressed gas, and a spray container filled with the spray composition. The concentrate contains a solvent containing a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol. The compressed gas is dissolved in the concentrate at 0.01 g / mL or more at 25°C. The spray container is equipped with a valve provided with a gas phase introduction hole for introducing the gas phase of the spray composition. Each of these components will be described below.

[0019] <Spray composition> The spray composition consists of a concentrate and a compressed gas.

[0020] (Undiluted) The stock solution consists of a solvent and optional ingredients.

[0021] ·solvent The solvent dissolves the compressed gas to a predetermined concentration, turning the spray composition into fine particles that can easily adhere to hair and skin, and improves diffusibility when sprayed into space, making it easier to exert its effect.

[0022] The solvent contains a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol.

[0023] Hydrofluoroolefins with boiling points of 5 to 40°C are blended to dissolve large amounts of compressed gas, adjust the particle size and drying properties of the sprayed material, and increase safety.

[0024] The hydrofluoroolefin having a boiling point of 5 to 40° C. is not particularly limited. Examples of hydrofluoroolefins having a boiling point of 5 to 40° C. include trans-1-chloro-3,3,3-trifluoropropene (HFO-1233zd(E), boiling point 19° C.), cis-1-chloro-3,3,3-trifluoropropene (HFO-1233zd(Z), boiling point 39° C.), and cis-1-chloro-2,3,3,3-tetrafluoroolefin (HFO-1224yd(Z), boiling point 15° C.). Hydrofluoroolefins having a boiling point of 5 to 40° C. may be used in combination.

[0025] The content of the hydrofluoroolefin having a boiling point of 5 to 40°C is not particularly limited. For example, the content of the hydrofluoroolefin having a boiling point of 5 to 40°C in the concentrate is preferably 40% by mass or more, and more preferably 50% by mass or more. Furthermore, the content of the hydrofluoroolefin having a boiling point of 5 to 40°C in the concentrate is preferably 97% by mass or less, and more preferably 96% by mass or less. When the content of the hydrofluoroolefin having a boiling point of 5 to 40°C is within the above range, the spray composition is likely to improve the drying properties of the deposit when it adheres to hair or skin. Here, according to common technical knowledge, in order to improve the drying properties of the sprayed spray composition, it is considered to blend a liquefied gas with a low boiling point (for example, normal butane, isobutane, propane, and liquefied petroleum gases which are mixtures of these, dimethyl ether, hydrofluoroolefins with a boiling point below 5°C, etc.). However, in this embodiment, contrary to this common technical knowledge, it has been discovered that by incorporating a hydrofluoroolefin having a higher boiling point of 5 to 40°C instead of the propellant having a boiling point of less than 5°C that has been conventionally used, the drying properties of the spray composition sprayed onto hair, skin, or air can be improved.

[0026] The alcohol is blended as a solvent for stably dissolving the hydrofluoroolefin and optional components described below to form a uniform spray composition, and also for adjusting the drying property and particle size of the sprayed spray composition.

[0027] The alcohol is not particularly limited, and examples thereof include monohydric alcohols having 2 to 3 carbon atoms, such as ethanol and isopropanol.

[0028] The alcohol content is not particularly limited. For example, the alcohol content in the concentrate is preferably 0.5% by mass or more, more preferably 1% by mass or more. Furthermore, the alcohol content in the concentrate is preferably 40% by mass or less, more preferably 35% by mass or less. By having the alcohol content within the above range, the spray composition is easily sprayed to have a particle size that easily adheres to hair or skin, and is easily dispersed appropriately in space to exert its effect. Furthermore, the sprayed particles are likely to have excellent drying properties.

[0029] The solvent content in the concentrate is preferably 50% by mass or more, and more preferably 55% by mass or more. Furthermore, the solvent content in the concentrate is preferably 99% by mass or less, and more preferably 98% by mass or less. By having the solvent content within the above range, the compressed gas is easily dissolved in the concentrate to a predetermined concentration. As a result, the spray product tends to form finer spray particles, which easily adhere to and penetrate hair and skin and easily diffuse in air. Furthermore, the spray particles have excellent drying properties. Therefore, the spray particles are less likely to drip when sprayed on hair or skin, and do not wet the floor when sprayed in air. Furthermore, the spray product allows the amount of spray per unit time to be adjusted, making it safer against fire.

[0030] The mass ratio of the hydrofluoroolefin having a boiling point of 5 to 40°C to the alcohol is preferably 50:50 to 99:1, and more preferably 55:45 to 98:2. When the mass ratio of the hydrofluoroolefin having a boiling point of 5 to 40°C to the alcohol is within the above range, the compressed gas is easily dissolved in the concentrate to a predetermined concentration. As a result, the sprayed product tends to have finer spray particles and has better drying properties.

[0031] ·Optional ingredients In addition to the solvent, the spray composition of this embodiment may optionally contain an active ingredient, a polyhydric alcohol, water, and an oil solution. The active ingredient is not particularly limited. Examples of the active ingredient include anionic resins such as acrylic resins (acrylates / diacetoneacrylamide) copolymer AMP, (acrylates / diacetoneacrylamide) copolymer TEA, (acrylates / alkyl acrylate / alkylacrylamide) copolymer AMP, and (acrylates / alkyl acrylate / alkylacrylamide) copolymer TEA; amphoteric resins such as dialkylaminoethyl (meth)acrylate-(meth)acrylic acid alkyl ester copolymer and octylamide-hydroxypropyl acrylate-butylaminoethyl methacrylate copolymer; cationic resins such as vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer sulfate and hydroxyethyl cellulose-dimethyldiallylammonium chloride; and alkyl acrylate copolymers. emulsion-type resins such as emulsions and alkyl acrylate-styrene copolymer emulsions; nonionic resins such as vinylpyrrolidone-vinyl acetate copolymers and hydroxyethyl acrylate-butyl acrylate-methoxyethyl acrylate copolymers; UV absorbers such as diethylaminohydroxybenzoylhexyl benzoate, 2-ethylhexyl paramethoxycinnamate, ethylhexyl triazone, oxybenzone, hydroxybenzophenone sulfonic acid, dihydroxybenzophenone sodium sulfonate, and dihydroxybenzophenone; UV scattering agents such as zinc oxide, titanium oxide, and octyltrimethoxysilane-coated titanium oxide; astringents such as allantoin hydroxyaluminum, tannic acid, citric acid, and lactic acid; antiperspirants such as chlorohydroxyaluminum and isopropylmethylphenol;Insect repellents such as N-diethyl-m-toluamide (DEET) and caprylic acid diethylamide; insecticides such as pyrethrins, phthalthrin, allethrin, permethrin, tefluthrin, and benfluthrin; deodorants such as lauric acid methacrylate, methyl benzoate, phenylmethyl acetate, geranyl clotrate, acetophenone myristate, benzyl acetate, benzyl propionate, and green tea extract; vitamins such as retinol, retinol acetate, retinol palmitate, calcium pantothenate, ascorbic acid, sodium ascorbate, dl-α-tocopherol, tocopherol acetate, tocopherol, tocopherol nicotinate, dibenzoylthiamine, riboflavin, and mixtures thereof; various extracts such as Swertia japonica extract and rosemary extract; and moisturizing agents such as hyaluronic acid. These include fragrances such as floral, green, citrus green, green floral, citrus, rose, rosewood, herbal wood, lemon, and peppermint; refreshing agents such as l-menthol, camphor, and peppermint oil; pigments such as aluminum powder, silica, and iron oxide; dyes such as Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Red No. 2, Red No. 3, Blue No. 1, and Blue No. 2; surfactants such as polysorbates, polyglycerin fatty acid esters, and polyoxyethylene alkyl ethers; chelating agents such as disodium edetate; disinfectants such as parahydroxybenzoates, sodium benzoate, potassium sorbate, benzalkonium chloride, benzethonium chloride, chlorhexidine chloride, and parachlormetacresol; and preservatives such as parabens and phenoxyethanol.

[0032] When an active ingredient is blended, the content of the active ingredient is not particularly limited. For example, the content of the active ingredient in the concentrate is preferably 0.01% by mass or more, more preferably 0.1% by mass or more. Furthermore, the content of the active ingredient in the concentrate is preferably 20% by mass or less, more preferably 15% by mass or less. When the content of the active ingredient is within the above range, the resulting spray composition is likely to achieve the desired effect of blending the active ingredient.

[0033] The polyhydric alcohol may be added for the purpose of reducing the flammability of the concentrate and increasing safety against fire.

[0034] The polyhydric alcohol is not particularly limited, and examples thereof include dihydric to hexahydric alcohols such as propylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, dipropylene glycol, diglycerin, and sorbitol.

[0035] When a polyhydric alcohol is blended, the content of the polyhydric alcohol is not particularly limited. For example, the content of the polyhydric alcohol in the concentrate is preferably 0.1% by mass or more, more preferably 0.5% by mass or more. Furthermore, the content of the polyhydric alcohol in the concentrate is preferably 20% by mass or less, more preferably 15% by mass or less. By having the content of the polyhydric alcohol within the above range, the spray composition forms a homogeneous phase while increasing the flash point of the concentrate, thereby improving safety against fire.

[0036] Water is preferably added to the spray composition for the purposes of adjusting the drying property of the spray composition and increasing its stability against fire.

[0037] The water is not particularly limited, and examples thereof include purified water, ion-exchanged water, physiological saline, and deep sea water.

[0038] When water is added, the content of water is not particularly limited. For example, the content of water in the concentrate is preferably 0.1% by mass or more, more preferably 0.3% by mass or more. Furthermore, the content of water in the concentrate is preferably 30% by mass or less, more preferably 25% by mass or less. When the water content is within the above range, the spray composition is likely to form a homogeneous phase and to have excellent drying properties.

[0039] The oil agent itself is used as an additive and is suitably blended as a solvent for dissolving oil-soluble active ingredients, surfactants, etc.

[0040] The oil is not particularly limited. Examples of the oil include hydrocarbon oils such as liquid paraffin, squalene, squalane, and isoparaffin; ester oils such as diisopropyl adipate, isopropyl myristate, isopropyl palmitate, cetyl octanoate, octyldodecyl myristate, butyl stearate, myristyl myristate, decyl oleate, cetyl lactate, isocetyl stearate, cetostearyl alcohol, diisobutyl adipate, diisopropyl sebacate, diethoxyethyl succinate, and diisostearyl malate; methylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecameronyl methylsiloxane, and the like. silicone oils such as methylcyclohexasiloxane, methylcyclopolysiloxane, tetrahydrotetramethylcyclotetrasiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, and polyglycerol-modified silicone; higher alcohols such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and lanolin alcohol; liquid fatty acids such as isostearic acid; oils and fats such as avocado oil, macadamia nut oil, shea butter, olive oil, and camellia oil; and waxes such as beeswax and lanolin wax.

[0041] When an oil is blended, the content of the oil is not particularly limited. For example, the content of the oil in the concentrate is preferably 0.01% by mass or more, and more preferably 0.1% by mass or more. Furthermore, the content of the oil in the concentrate is preferably 10% by mass or less, and more preferably 8% by mass or less. When the oil content is within the above range, the spray composition easily dissolves active ingredients, surfactants, etc.

[0042] The method for preparing the stock solution is not particularly limited. The stock solution can be prepared by a conventionally known method. For example, the stock solution can be prepared by mixing optional components such as the active ingredient with alcohol, and then adding a hydrofluoroolefin having a boiling point of 5 to 40°C.

[0043] (compressed gas) The compressed gas is blended as a microparticle agent, part of which dissolves in the concentrate to make the spray particles finer, and as a propellant, part of which does not dissolve in the concentrate and remains in the gas phase inside the spray container, pressurizing the spray composition and spraying it to the outside.

[0044] The compressed gas is not particularly limited. Examples of compressed gases include nitrogen, air, oxygen, hydrogen, carbon dioxide, and nitrous oxide. The compressed gas preferably contains at least one of carbon dioxide and nitrous oxide. Carbon dioxide and nitrous oxide dissolve in large amounts in hydrofluoroolefins with boiling points of 5 to 40°C. Therefore, by using these compressed gases, the compressed gas can be easily dissolved in the concentrate to a predetermined concentration, and a vapor tap hole can be provided in the housing described below. As a result, the sprayed product easily adheres to hair and skin and forms particles of a size that easily diffuses in space, shortening or even eliminating the flame length in a flame length test.

[0045] The pressure inside the container of compressed gas at 25°C is 0.3 MPa. End Preferably, the container is filled so that the pressure inside the container at 25°C is 1.0 MPa or less, and more preferably 0.4 MPa or more. Furthermore, the compressed gas is filled so that the pressure inside the container at 25°C is 1.0 MPa or less, and more preferably 0.8 MPa or less. By filling the container with compressed gas so that the pressure is within the above range, the compressed gas is easily dissolved in the concentrate to a predetermined concentration, the spray composition is easily adhered to hair and skin, and easily forms particles of a size that are easily diffused in space, making it easy to spray an appropriate amount.

[0046] In the spray composition of this embodiment, the compressed gas is dissolved in the concentrate to a concentration of 0.01 g / mL or more at 25°C. Preferably, the compressed gas is dissolved to a concentration of 0.02 g / mL or more. If the amount of dissolved compressed gas is less than 0.01 g / mL, most of the compressed gas will be in the gas phase, and as the spray product is sprayed, the compressed gas will be expelled from the gas phase inlet hole, reducing the pressure and preventing the spray from being completed. Furthermore, the amount of dissolved compressed gas is preferably 0.1 g / mL or less, and more preferably 0.08 g / mL or less. If the amount of dissolved compressed gas exceeds 0.1 g / mL, the pressure inside the spray composition will be too high, and when sprayed onto hair or skin, the force will be too strong, making adhesion prone to decrease.

[0047] The method for producing the composition for spraying is not particularly limited. As an example, the composition for spraying can be prepared by filling a stock solution into a pressure-resistant container, attaching a valve to the opening of the pressure-resistant container, filling the container with compressed gas through the valve, and dissolving the compressed gas in the stock solution to saturation.

[0048] Returning to the explanation of the spray product as a whole, the spray product of this embodiment is a spray product in which the above-mentioned spray composition is filled in a spray container.

[0049] The spray container mainly comprises a pressure-resistant container filled with a spray composition, a valve attached to the opening of the pressure-resistant container, and an injection member attached to the valve.

[0050] The pressure-resistant container is a container filled with the spray composition, and is cylindrical with a bottom.

[0051] The material of the pressure vessel is not particularly limited, and examples thereof include metals such as aluminum and tin, various synthetic resins, and pressure-resistant glass.

[0052] A valve is a component for closing and sealing the opening of a pressure vessel. The valve mainly comprises a housing held by a mounting cup attached to the opening of the pressure vessel, a stem with a stem hole that connects the inside and outside of the pressure vessel, and a stem rubber attached around the stem hole to close the stem hole. The housing accommodates the stem, the stem rubber, and a spring that urges the stem upward.

[0053] The housing is roughly cylindrical and has a gas phase introduction hole (vapor tap hole) on the side for introducing the gas phase of the spray composition, and a liquid phase introduction hole on the bottom for introducing the liquid phase of the spray composition.

[0054] The size (cross-sectional area Vt) of the gas phase introduction hole is not particularly limited. For example, the size (cross-sectional area Vt) of the gas phase introduction hole is 0.01 mm 2 It is preferable that the thickness is 0.03 mm or more. 2 It is more preferable that the size (cross-sectional area Vt) of the gas phase introduction hole is 0.20 mm or more. 2 Preferably, it is 0.15 mm or less. 2 When the dimensions (cross-sectional area Vt) of the gas phase introduction hole are within the above range, compressed gas is introduced into the housing during spraying, making it easier to form particles of a size that easily adheres to hair or skin and easily diffuses in space, and the flame length can be shortened or even eliminated in a flame length test that measures the extension of a flame when sprayed toward a flame, thereby increasing the safety of the sprayed spray composition.

[0055] The size (cross-sectional area Lt) of the liquid phase introduction hole is not particularly limited. For example, the size (cross-sectional area Lt) of the liquid phase introduction hole is 0.1 mm 2 It is preferable that it is 0.2 mm or more. 2 The size (cross-sectional area Lt) of the liquid phase introduction hole is preferably 3.5 mm or more. 2 Preferably, it is 3.0 mm or less. 2When the dimensions (cross-sectional area Lt) of the liquid phase introduction hole are within the above range, an appropriate amount of the liquid phase portion of the spray composition can be easily introduced into the housing, resulting in a more stable spray state.

[0056] The area ratio (Vt / Lt) of the area of ​​the gas phase introduction hole (Vt) to the area of ​​the liquid phase introduction hole (Lt) is preferably 0.05 or more, more preferably 0.06 or more. Furthermore, the area ratio (Vt / Lt) is preferably 0.5 or less, more preferably 0.4 or less. By having the area ratio (Vt / Lt) within the above range, the spray product can mix compressed gas into the spray composition to be sprayed, thereby making the spray particles finer. Furthermore, the spray amount per unit time of the spray product can be adjusted, making it safer against fire.

[0057] It is common technical knowledge that in aerosol products containing compressed gas, most of the compressed gas is in the gas phase, and as spraying begins, the compressed gas is expelled from the gas phase inlet, reducing the pressure and preventing the product from being sprayed to the end. In contrast, the spray composition of this embodiment contains a concentrate containing a hydrofluoroolefin and an alcohol, each having a boiling point of 5 to 40°C. Therefore, when carbon dioxide or nitrous oxide is contained as the compressed gas, the amount of carbon dioxide or nitrous oxide dissolved in the concentrate is as high as 0.01 g / mL or more, preferably 0.02 g / mL or more. Therefore, even if the compressed gas in the gas phase is expelled from the gas phase inlet during spraying, the compressed gas dissolved in the concentrate volatilizes, increasing the pressure and allowing the product to be sprayed to the end.

[0058] In this case, the compressed gas introduced into the housing through the gas phase inlet at the time of spraying and the liquid phase portion of the spray composition introduced into the housing through the liquid phase inlet are mixed inside the housing. The spray composition has a large amount of compressed gas dissolved in a concentrate containing a hydrofluoroolefin and an alcohol having a boiling point of 5 to 40°C, and is sprayed in a state where the gaseous compressed gas is mixed with this. As a result, the sprayed spray composition is likely to form spray particles of a size that are easily attached to hair or skin and easily diffuse in space. Furthermore, in a flame length test that measures the extension of a flame when sprayed toward a flame, the flame length can be shortened or even eliminated, thereby improving safety.

[0059] The spray member is a member for spraying the spray composition by opening and closing the valve, and is attached to the upper end of the stem. The spray member mainly comprises a nozzle portion having a spray hole formed therein and an operating portion that is operated by the user with a finger or the like. The spray composition is sprayed from the spray hole. The number and shape of the spray holes are not particularly limited. There may be multiple spray holes. The shape of the spray hole may also be approximately circular, approximately angular, etc.

[0060] In the spray product of this embodiment, when the spray member is depressed, the valve stem is pushed downward. This causes the stem rubber to bend downward, opening the stem hole. As a result, the inside of the pressure-resistant container is connected to the outside. When the inside of the pressure-resistant container is connected to the outside, the spray composition is drawn into the housing by the pressure difference between the pressure inside the pressure-resistant container and the outside, passes through the stem hole and the stem passage, and is sent to the spray member, where it is then sprayed from the spray hole.

[0061] Although the spray particles sprayed from the spray product are pressurized by compressed gas, they can be made fine, which makes them more likely to adhere to hair and skin and to diffuse easily in space.

[0062] The average particle diameter of the spray particles is preferably 5 μm or more, more preferably 6 μm or more. Furthermore, the average particle diameter of the spray particles is preferably 40 μm or less, more preferably 35 μm or less. When the average particle diameter of the spray particles is within the above range, the spray particles are easily adhered and are not easily inhaled. Furthermore, the spray particles have excellent drying properties and are less likely to wet the floor surface.

[0063] As described above, the spray product of this embodiment can spray the spray composition using the pressure of compressed gas. The sprayed particles are easily sprayed in a size that makes them easy to adhere to hair and skin, easy to disperse in space, and difficult for consumers to inhale.

[0064] When the spray product is used as a hair setting agent, the hydrofluoroolefin tends to remain in the deposit that adheres to the hair. As a result, the deposit dries in a very short time. Furthermore, as the deposit dries, a film of the styling resin easily forms on the hair, making it easy to achieve excellent setting power. Furthermore, the spray amount per unit time of the spray product can be adjusted, making it highly safe against fire. [Example]

[0065] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples in any way.

[0066] Example 1 Concentrate 1 was prepared according to the formulation (unit: mass %) listed in Table 1 below, and 100 g was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ0.6, vapor tap hole: φ0.3) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.5 MPa (25°C). The amount of carbon dioxide gas dissolved in the solvent at 25°C was 0.040 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.25.

[0067] [Table 1]

[0068] Examples 2 to 6 Hair styling spray products were prepared in the same manner as in Example 1, except that the formulation of the concentrate was changed to the formulations (concentrate solutions 2 to 6) shown in Table 1. The amount of carbon dioxide dissolved in the solvent at 25°C was 0.034 g / mL for Example 2, 0.032 g / mL for Example 3, 0.042 g / mL for Example 4, 0.039 g / mL for Example 5, and 0.038 g / mL for Example 6. The Vt / Lt (cross-sectional area ratio) was 0.25 in all cases.

[0069] Example 7 100 g of stock solution 7 listed in Table 1 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ0.6, vapor tap hole: φ0.3) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide dissolved in the solvent at 25°C was 0.039 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.25.

[0070] Example 8 A hair styling spray product was prepared in the same manner as in Example 7, except that stock solution 8 listed in Table 1 was used. The amount of carbon dioxide dissolved in the solvent at 25°C was 0.039 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.25.

[0071] Example 9 100 g of concentrate 9 listed in Table 1 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ1.55, vapor tap hole: φ0.4) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide dissolved in the solvent at 25°C was 0.039 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.07.

[0072] (Comparative Example 1) 100 g of concentrate 1 listed in Table 1 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ2.0, vapor tap hole: none) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.5 MPa (25°C). The amount of carbon dioxide gas dissolved in the solvent at 25°C was 0.039 g / mL.

[0073] (Comparative Example 2) 100 g of stock solution 1 listed in Table 1 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ2.0, vapor tap hole: none) was fixed to the opening of the pressure-resistant container and sealed. Nitrogen was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.5 MPa (25°C). The amount of nitrogen dissolved in the solvent at 25°C was 0.001 g / mL.

[0074] (Comparative Example 3) 100 g of stock solution 1 listed in Table 1 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ0.6, vapor tap hole: φ0.3) was fixed to the opening of the pressure-resistant container and sealed. Nitrogen was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a hair styling spray product. The pressure inside the container was 0.5 MPa (25°C). The amount of nitrogen dissolved in the solvent at 25°C was 0.001 g / mL. The Vt / Lt was 0.5.

[0075] The spray products for hair styling prepared in Examples 1 to 9 and Comparative Examples 1 to 3 were evaluated for spray condition, adhesion, penetration, average particle size, drying property, state of adhesion, setting power, clogging, and flame length using the following evaluation methods. The results are shown in Table 2.

[0076] <Injection state> The hair styling spray product was adjusted to 25° C. and sprayed. The spray condition was evaluated according to the following evaluation criteria. (Evaluation criteria) ◯: The spray composition was sprayed to the end. x: The spray composition was not sprayed to the end and remained.

[0077] <Adhesion> The hair styling spray product was adjusted to 25°C and sprayed onto a hair tress from a distance of 10 cm. The adhesion to the hair tress was evaluated according to the following evaluation criteria. (Evaluation criteria) ◯: The spray composition was evenly applied to the entire hair bundle. Δ: The spray composition adhered in part to the hair bundle in the form of particles, and was not uniformly adhered to the entire hair bundle. ×: The spray composition was sparsely adhered to some parts of the hair bundle in the form of particles, and was not adhered uniformly to the entire hair bundle.

[0078] <Permeability> The hair styling spray product was adjusted to 25°C and sprayed onto a hair tress from a distance of 10 cm. Penetration into the back of the hair tress was evaluated according to the following evaluation criteria. (Evaluation criteria) ◯: The spray composition sprayed onto the hair bundle penetrated to the back side. ×: The spray composition sprayed onto the hair bundle did not penetrate to the back side.

[0079] <Average particle size> The hair styling spray product was adjusted to 25°C, and the average particle size of the sprayed particles was measured at a distance of 15 cm from the spray nozzle using a particle size distribution analyzer (LDSA-3400A) manufactured by Microtrack Bell Co., Ltd.

[0080] <Drying> The hair styling spray product was adjusted to 25°C and sprayed onto the hair bundle from a distance of 10 cm, in a single back and forth motion over the entire hair bundle. The drying properties of the hair bundle were evaluated according to the following evaluation criteria. (Evaluation criteria) ◎: The hair strands were dry within 5 minutes. ○: The hair strands dried in 5 to 10 minutes. ×: The hair bundle was not dry even after 10 minutes.

[0081] <Condition of adhesions> The spray composition was adjusted to 25°C and sprayed onto the hair. The state of the deposits was evaluated according to the following evaluation criteria. (Evaluation criteria) ○: No resin was precipitated even after drying. ×: Resin precipitated upon drying.

[0082] <Setting power> The hair styling spray product was adjusted to 25°C, and a hair bundle was held up vertically from a mannequin and sprayed from a distance of 10 cm. The hair bundle was held up until it dried, and after it dried, the hand was removed. The angle of the hair bundle was checked and evaluated according to the following evaluation criteria. The angle of the hair bundle refers to the angle between the hair bundle and a horizontal plane, with the vertical direction being 90°. (Evaluation criteria) ◎: The angle of the hair bundle was 90 to 60 degrees. ○: The angle of the hair bundle was 59 to 30°. ×: The angle of the hair bundle was 29 to 0°.

[0083] <Clogging> The hair styling spray product was stored at 25°C and sprayed twice per day for one second for one month. After checking for clogging of the nozzle, the product was evaluated according to the following criteria. (Evaluation criteria) ◯: The nozzle was not clogged and the spray composition was stably sprayed. ×: The nozzle was clogged and the spray composition could not be sprayed.

[0084] <Flame length> The hair styling spray product was adjusted to 25°C and sprayed onto a 5 cm high flame from 15 cm behind, and the flame extension (flame length) was evaluated according to the following evaluation criteria. (Evaluation criteria) ◎: No flame length was observed. ○: The flame length was less than 25 cm. △: Flame length was 25 cm or more but less than 45 cm. ×: The flame length was 45 cm or more.

[0085] [Table 2]

[0086] As shown in Table 2, the hair styling spray products of Examples 1 to 9 could be sprayed to the end, adhered evenly to the entire hair bundle, did not penetrate to the back of the hair bundle, and dried quickly. Furthermore, the hair styling spray products of Examples 1 to 9 did not produce resin precipitation even after drying, had excellent setting power, did not clog, and had no flame length or less than 25 cm. On the other hand, the hair styling spray product of Comparative Example 1, which did not have a gas-phase communicating hole, had a large flame spread. The hair styling spray product of Comparative Example 2, which did not have a gas-phase communicating hole and had a small amount of dissolved compressed gas, had a large flame spread. The hair styling spray product of Comparative Example 3, which had a small amount of dissolved compressed gas, could not be sprayed to the end.

[0087] Example 10 100 g of the concentrate 10 listed in Table 3 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ1.55, vapor tap hole: φ0.4) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare an airborne spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide dissolved in the solvent at 25°C was 0.039 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.07.

[0088] [Table 3]

[0089] The spray state, average particle size, and flame length were measured using the spatial spray product prepared in Example 10 according to the above evaluation methods. The results are shown in Table 4.

[0090] [Table 4]

[0091] As shown in Table 4, the spray product of Example 10 was sprayed to the end. When the air spray product was sprayed into a room from a height of 1.5 m, the spray particles dispersed, and the fragrance of the fragrance quickly spread. In addition, the spray particles disappeared as they fell, and did not adhere to or wet the floor (flooring). Furthermore, no flame length was observed with the spray product of Example 10.

[0092] Example 11 100 g of the concentrate 11 listed in Table 5 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ1.55, vapor tap hole: φ0.4) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare an insect repellent spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide gas dissolved in the solvent at 25°C was 0.041 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.07.

[0093] [Table 5]

[0094] The spray state, average particle size, and flame length were measured using the insect repellent spray product prepared in Example 11 according to the above evaluation methods. The results are shown in Table 6.

[0095] [Table 6]

[0096] As shown in Table 6, the spray product of Example 11 could be sprayed to the end. When the insect repellent spray product was sprayed 10 cm from the skin, the spray particles adhered and dried quickly without dripping. Furthermore, no flame length was observed with the spray product of Example 11.

[0097] Example 12 100 g of concentrate 12 listed in Table 7 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ1.55, vapor tap hole: φ0.4) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spray element (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare a sunscreen spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide dissolved in the solvent at 25°C was 0.041 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.07.

[0098] [Table 7]

[0099] The spray condition, average particle size, and flame length were measured using the sunscreen spray product prepared in Example 12 according to the above evaluation methods. The results are shown in Table 8.

[0100] [Table 8]

[0101] As shown in Table 8, the spray product of Example 12 could be sprayed to the end. When the sunscreen spray product was sprayed 10 cm from the skin, the spray particles adhered to the skin and dried quickly without dripping. Furthermore, no flame length was observed with the spray product of Example 12.

[0102] Example 13 100 g of concentrate 13 listed in Table 9 was filled into an aluminum pressure-resistant container. Next, a valve (stem hole: φ0.4, housing lower hole: φ1.55, vapor tap hole: φ0.4) was fixed to the opening of the pressure-resistant container and sealed. Carbon dioxide gas was then filled through the stem, and a spraying device (spray hole: φ0.43, with mechanical break-up mechanism) was attached to the stem to prepare an insecticide spray product. The pressure inside the container was 0.45 MPa (25°C). The amount of carbon dioxide dissolved in the solvent at 25°C was 0.038 g / mL. The Vt / Lt (cross-sectional area ratio) was 0.07.

[0103] [Table 9]

[0104] The spray condition, average particle size, and flame length were measured using the insecticide spray product prepared in Example 13 according to the above evaluation methods. The results are shown in Table 10.

[0105] [Table 10]

[0106] As shown in Table 10, the spray product of Example 13 could be sprayed to the end. When the insecticide spray product was sprayed indoors, the spray particles dispersed. In addition, the spray particles disappeared as they fell, and did not adhere to or wet the floor (flooring). Furthermore, no flame length was observed with the spray product of Example 13.

Claims

1. A spray composition comprising a concentrate and a compressed gas, and a spray container filled with the spray composition, The raw solution contains a solvent containing a hydrofluoroolefin having a boiling point of 5 to 40°C and an alcohol, the hydrofluoroolefin having a boiling point of 5 to 40°C is at least one of trans-1-chloro-3,3,3-trifluoropropene, cis-1-chloro-3,3,3-trifluoropropene, or cis-1-chloro-2,3,3,3-tetrafluoroolefin; The alcohol includes a monohydric alcohol having 2 to 3 carbon atoms, The compressed gas contains at least one of carbon dioxide gas and nitrous oxide, The content of the solvent in the undiluted solution is 50 to 99% by mass, The compressed gas has a dissolution rate of 0.01 g / mL or more in the original solution at 25°C, A spray product, wherein the spray container is provided with a valve provided with a gas phase introduction hole for introducing the gas phase of the spray composition.

2. A spray product as described in claim 1, wherein the compressed gas is filled so that the pressure inside the container at 25°C is 0.3 MPa or more and 1.0 MPa or less.

3. The spray product according to claim 1 or 2, wherein the mass ratio of the hydrofluoroolefin having a boiling point of 5 to 40°C to the alcohol is 50:50 to 99:

1.

4. the valve is provided with a liquid phase introduction hole for introducing the liquid phase of the spray composition, The spray product according to any one of claims 1 to 3, wherein the area ratio (Vt / Lt) of the cross-sectional area (Vt) of the gas phase introduction hole to the cross-sectional area (Lt) of the liquid phase introduction hole is 0.05 to 0.5.

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