JP2021024786A - Spray composition - Google Patents

Abstract

To provide a spray composition that gives an excellent cold sensation in a continuous manner.SOLUTION: A spray composition has a stock solution containing a hydrofluoroolefin with a boiling point of 5-40°C and an alcohol, and a compressed gas, the compressed gas having at least one of carbon dioxide or nitrous oxide.SELECTED DRAWING: Figure 1

Description

The present invention relates to a spray composition. More specifically, the present invention relates to a composition for spraying, which provides a sustained excellent cooling sensation.

Conventionally, a spray composition for imparting a feeling of coldness to application sites such as the scalp and arms has been developed. Patent Document 1 discloses a spray composition for application to a human body containing a compressed gas and pentane.

Japanese Unexamined Patent Publication No. 62-33115

However, the spray composition for human body coating described in Patent Document 1 does not have a sufficient cooling sensation. In addition, pentane is flammable and is dangerous to fire. Further, the spray composition for application to the human body described in Patent Document 1 does not easily maintain a cooling sensation.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a spray composition which is safe against fire and can continuously obtain an excellent cooling sensation.

The present invention that solves the above problems mainly includes the following configurations.

(1) A spray composition comprising a stock solution containing a hydrofluoroolefin having a boiling point of 5 to 40 ° C. and an alcohol and a compressed gas, wherein the compressed gas contains at least one of carbon dioxide gas and nitrous oxide. ..

According to such a configuration, the amount of the compressed gas dissolved in the stock solution increases in the spray composition, and when the composition is sprayed on the application site such as the scalp or the arm, the dissolved compressed gas is released. As a result, the vaporization of hydrofluoroolefin is promoted, and an excellent cooling sensation can be obtained. In addition, the spray composition is safe against fire, and the cooling sensation tends to be maintained at the application site.

(2) The spray composition according to (1), wherein the undiluted solution contains water.

According to such a configuration, the spray composition tends to impart a better cooling sensation while maintaining excellent drying properties.

(3) The spray composition according to (1) or (2), wherein the content of the hydrofluoroolefin is 30 to 90% by mass.

According to such a configuration, the composition for spraying has a large amount of the compressed gas dissolved, and when sprayed on the application site, it continuously vaporizes at the application site without instantly vaporizing, and is excellent in cooling. It is possible to continue to give a feeling to the application site for a long time.

According to the present invention, it is possible to provide a spray composition capable of continuously obtaining an excellent cooling sensation.

FIG. 1 is a graph showing the relationship between the temperature of the propellant and the elapsed time when the spray composition prepared in the examples is jetted.

<Composition for spraying>
The spray composition of one embodiment of the present invention comprises a stock solution containing a hydrofluoroolefin having a boiling point of 5 to 40 ° C. and an alcohol, and a compressed gas. The compressed gas contains at least one of carbon dioxide and nitrous oxide. The spraying composition of the present embodiment is safe against fire, and when sprayed on an application site such as a scalp or an arm, an excellent cooling sensation can be imparted to the application site. Also, the feeling of coldness is easy to sustain. Each will be described below.

(Stock solution)
The undiluted solution contains a hydrofluoroolefin having a boiling point of 5 to 40 ° C. and an alcohol. The undiluted solution preferably contains water.

Hydrofluoroolefins having a boiling point of 5 to 40 ° C. Hydrofluoroolefins having a boiling point of 5 to 40 ° C. are blended to enhance safety against fire. Further, the hydrofluoroolefin having a boiling point of 5 to 40 ° C. is blended as a solvent that dissolves a large amount of compressed gas in order to impart an appropriate cooling sensation to application sites such as the scalp and arms. Further, a hydrofluoroolefin having a boiling point of 5 to 40 ° C. is blended for adjusting the drying property of the spray composition.

Hydrofluoroolefins having a boiling point of 5 to 40 ° C. include, for example, 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 the like are preferable. The hydrofluoroolefin having a boiling point of 5 to 40 ° C. in the present embodiment is another hydrofluoroolefin (for example, trans-1,3,3,3-tetrafluoropropene (boiling point -19 ° C.), 2,3,3,3. -The boiling point is higher than that of tetrafluoropropene (boiling point-29 ° C.). Therefore, when the spray composition is sprayed, the vaporization rate of the hydrofluoroolefin having a boiling point of 5 to 40 ° C. can be adjusted without instantaneous vaporization by the amount of the compressed gas dissolved, and the vaporization rate can be adjusted at the application site. It is possible to give an appropriate feeling of coldness for a long time. In addition, the spray composition is moderately easy to dry at the application site.

The content of the hydrofluoroolefin having a boiling point of 5 to 40 ° C. is not particularly limited. As an example, the content of the hydrofluoroolefin having a boiling point of 5 to 40 ° C. is preferably 30% by mass or more, more preferably 40% by mass or more in the stock solution. The content of hydroluoloolefin having a boiling point of 5 to 40 ° C. is preferably 90% by mass or less, and more preferably 85% by mass or less in the undiluted solution. When the content of the hydrofluoroolefin having a boiling point of 5 to 40 ° C. is within the above range, the amount of the compressed gas dissolved in the spray composition is large, and it is easy to impart an appropriate cooling sensation at the application site for a long time. ..

-Alcohol Alcohol is added to adjust the drying property and adjust the cooling sensation such as cooling temperature and durability.

Alcohol is not particularly limited. As an example, the alcohol is a monohydric alcohol having 2 to 3 carbon atoms such as ethanol and isopropanol.

The alcohol content is not particularly limited. As an example, the content of alcohol in the stock solution is preferably 5% by mass or more, and more preferably 10% by mass or more. The alcohol content in the stock solution is preferably 55% by mass or less, more preferably 50% by mass or less. When the alcohol content is within the above range, the spray composition can easily adjust the drying property to adjust the cooling sensation such as the cooling temperature and the durability.

-Optional ingredients In addition to the above-mentioned hydrofluoroolefins and alcohols, the stock solution may appropriately contain optional ingredients such as water, active ingredients, surfactants, water-soluble polymers, oils, and powders.

Water is suitably blended for the purpose of adjusting the drying property of the spray composition, lowering the cooling temperature, maintaining the cooling effect, and the like.

Water is not particularly limited. As an example, the water is purified water, ion-exchanged water, physiological saline, deep sea water and the like.

When water is blended, the content of water is not particularly limited. As an example, the content of water in the undiluted solution is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more. The water content in the undiluted solution 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 tends to form a uniform phase, and while maintaining excellent dryness, a more excellent cooling sensation tends to be maintained at the application site.

The active ingredient can be appropriately selected according to the intended use and purpose of the product. For example, the active ingredients are various fragrances such as natural fragrances and synthetic fragrances; refreshing agents such as l-menthol, camphor, peppermint oil; retinol, retinol acetate, retinol palmitate, calcium pantothenate, magnesium ascorbate phosphate. , Sodium ascorbate, dl-α-tocopherol, tocopherol acetate, tocopherol, tocopherol nicotinate, dibenzoylthiamine, riboflavin and vitamins such as mixtures thereof; ascorbic acid, α-tocopherol, dibutylhydroxytoluene, butylhydroxyanisole, etc. Antioxidants; Amino acids such as glycine, alanine, leucine, serine, tryptophan, cysteine, methionine, aspartic acid, glutamic acid, arginine; collagen, hyaluronic acid, caronic acid, sodium lactate, dl-pyrrolidone carboxylate, keratin, casein, Moisturizers such as lecithin and urea; bactericidal disinfectants such as paraoxybenzoic acid ester, sodium benzoate, potassium sorbate, phenoxyethanol, benzalkonium chloride, benzethonium chloride, chlorhexidine chloride, parachlormetacresol; sembri extract, royal jelly extract, Extracts such as Shakuyaku extract, Hechima extract, Rose extract, Lemon extract, Aloe extract, Shobu root extract, Eucalyptus extract, Sage extract, Tea extract, Seaweed extract, Placenta extract, Silk extract; Zinc oxide, Allantin hydroxyaluminum, Tannic acid , Astringents such as citric acid, lactic acid; anti-inflammatory agents such as allantin, glycyrrhetinic acid, dipotassium glycyrrhizinate, azulene; methacrylate methacrylate, methyl benzoate, methylphenylacetate, geranylcrotolate, acetophenone myristate, benzyl acetate, propion Deodorants such as benzyl acid, green tea extract; UV absorption of hexyl diethylaminohydroxybenzoyl benzoate, 2-ethylhexyl paramethoxysylate, ethylhexyltriazone, oxybenzone, hydroxybenzophenone sulfonic acid, sodium dihydroxybenzophenone sulfonate, dihydroxybenzophenone, etc. Agents; UV scatterers such as zinc oxide, titanium oxide, octyltrimethoxysilane coated titanium oxide; whitening agents such as arbutin, kodiic acid; N, N-diethyl-m-toluamide (diet), di-n-butyl succinate , Hid Loxyanisole, rotenone, ethyl-butylacetylaminopropionate, icaridine (picaridin), p-menthan-3,8-diol, 3- [acetyl (butyl) amino] ethyl propionate, 2- (2-hydroxyethyl) Pest repellents such as 1-methylpropyl piperidin-1-carboxylate; antiperspirants such as chlorohydroxyaluminum and isopropylmethylphenol; anti-inflammatory analgesics such as methyl salicylate, indomethacin, fervinac, ketoprofen; hair growth agents such as minoxidil; Anionic resins such as Acrylate / alkyl acrylate / ethylamine methacrylate) copolymers; vinylpyrrolidone / N, N-dimethylaminoethyl methacrylate copolymer diethylsulfate, methylvinylimidazolium chloride / vinylpyrrolidone copolymer, methyl Cationic resins such as vinyl imidazolium / vinylpyrrolidone copolymer methylsulfate; acrylic acid amphoteric resins such as (octylamide acrylate / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer; polyvinylpyrrolidone, vinyl acetate / Vinylpyrrolidone copolymer, polyvinylcaprolactam, N-vinylpyrrolidone / methacrylicamide / N-vinylimidazole copolymer, methacrylic acid, itaconic acid / at least one acrylic acid ester having 1 to 3 carbon atoms, methacrylic acid ester) Nonionic resins such as copolymers, (dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate) copolymers; alkyl acrylate copolymer emulsions, alkyl acrylate-styrene copolymer emulsions, vinylpyrrolidone-styrene copolymer emulsions, A styling agent such as an emulsion resin such as an acrylic acid-acrylic acid hydroxy ester copolymer emulsion.

When the active ingredient is blended, the content of the active ingredient is not particularly limited. As an example, the content of the active ingredient is preferably 0.05% by mass or more, more preferably 0.1% by mass or more in the undiluted solution. The content of the active ingredient is preferably 20% by mass or less, more preferably 15% by mass or less in the undiluted solution. When the content of the active ingredient is within the above range, the effect of blending the active ingredient can be easily obtained.

The surfactant is suitably blended to obtain an antistatic effect and a treatment effect.

The surfactant is not particularly limited. For example, surfactants include fatty acids such as myristic acid and stearic acid and saponates of alkalis such as triethanolamine and potassium, alkyl phosphates, polyoxyethylene alkyl ether phosphates, alkyl sulfates and polys. Anionic surfactants such as oxyethylene alkyl ether sulfates, alkyl ether carboxylates, sulfonates; N-acylglutamates, N-acylglycine salts, N-acylalanine salts; amino acid type anions such as acylalanine salts Sexual surfactants; polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, fatty acid alkanolamide, polyethylene glycol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene glycerin fatty acid ester, polyoxyethylene alkyl ether fatty acid ester , Polyoxyethylene sorbitan fatty acid ester, polyglycerin fatty acid ester, and other nonionic surfactants; polyoxyethylene / methylpolysiloxane copolymer, polyoxypropylene / methylpolysiloxane copolymer, poly (oxyethylene / oxypropylene ) ・ Silicone-based surfactants such as methylpolysiloxane copolymer; lauryldimethylaminoacetic acid betaine (laurylbetaine), stearylbetaine, lauric acid amide propyl betaine, coconut oil fatty acid amide propyl dimethylaminoacetic acid betaine (cocamidopropyl betaine) Etc. and other amphoteric surfactants. Surfactants may be used in combination.

When a surfactant is blended, the content of the surfactant is not particularly limited. As an example, the content of the surfactant in the stock solution is preferably 0.1% by mass or more, and more preferably 0.5% by mass or more. The content of the surfactant is preferably 10% by mass or less, and more preferably 8% by mass or less. When the content of the surfactant is within the above range, the spray composition can easily obtain the desired effect, is not sticky, and has a good usability.

The water-soluble polymer is blended for adjusting the viscosity of the spray composition, adjusting the vaporization rate of the hydrofluoroolefin or the compressed gas, adjusting the cooling temperature, the durability, and the like.

The water-soluble polymer is not particularly limited. For example, the water-soluble polymer is a cellulosic polymer such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose; xanthan gum, carrageenan, arabic rubber, tragant rubber, cationized guagam, guagam, gellan gum and the like. Gum quality: dextran, sodium carboxymethyl dextran, dextrin, pectin, sodium alginate, sodium hyaluronate, polyvinyl alcohol, carboxyvinyl polymer and the like.

When the water-soluble polymer is blended, the content of the water-soluble polymer is not particularly limited. As an example, the content of the water-soluble polymer is preferably 0.01% by mass or more, and more preferably 0.05% by mass or more in the stock solution. The content of the water-soluble polymer is preferably 5% by mass or less, and more preferably 3% by mass or less in the stock solution. When the content of the water-soluble polymer is within the above range, the effect of blending the water-soluble polymer can be easily obtained, and the viscosity of the stock solution does not become too high.

The oil agent is added to improve the feeling of use such as moisturizing, glossing, and slipping.

The oil agent is not particularly limited. As an example, the oil agent is dimethicone, methylpolysiloxane, cyclopentasiloxane, cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, methylcyclopolysiloxane, tetrahydrotetramethylcyclotetra. Silicone oils such as siloxane, octamethyltrisiloxane, decamethyltetrasiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane; hydrocarbon oils such as liquid paraffin and isoparaffin; methylpentanediol dineopenate, diethylpentanediol dineopentanoate, di -2-Neopentyl glycol hexaneate, neopentyl glycol dicaprate, propylene glycol dilaurate, ethylene glycol distearate, diethylene glycol dilaurate, diethylene glycol distearate, diethylene glycol diisostearate, diethylene glycol dioleate, triethylene glycol dilaurate, distearate Triethylene glycol acid, triethylene glycol diisostearate, triethylene glycol dioleate, propylene glycol monostearate, propylene glycol monooleate, ethylene glycol monostearate, glyceryl tri2-ethylhexanoate, tri (capryl capric acid) ) Glycerin, isononyl isononanoate, isotridecyl isononanoate, diethoxyethyl succinate, diisostearyl malate, isopropyl myristate, isopropyl palmitate, cetyl isooctanoate, octyl hydroxystearate, ethylhexyl hydrosixistearate, diisopropyl adipate Ester oils such as: Olive oil, camellia oil, corn oil, castor oil, saflower oil, jojoba oil, palm oil and other fats and oils; fatty acids such as isostearic acid and oleic acid; higher alcohols such as oleyl alcohol and isostearyl alcohol. is there.

When an oil agent is blended, the content of the oil agent is not particularly limited. As an example, the content of the oil agent is preferably 0.1% by mass or more, and more preferably 0.2% by mass or more in the undiluted solution. The content of the oil agent is preferably 10% by mass or less, and more preferably 5% by mass or less in the undiluted solution. When the content of the oil agent is within the above range, the effect of blending the oil agent can be easily obtained. In addition, the spray composition is less likely to be less dry and less sticky.

The powder is suitably blended in order to improve the usability, such as imparting a smooth feeling.

The powder is not particularly limited. For example, the powder is talc, zinc oxide, titanium oxide, silica, zeolite, kaolin, mica, magnesium carbonate, calcium carbonate, zinc silicate, magnesium silicate, aluminum silicate, calcium silicate and the like.

When the powder is blended, the content of the powder is not particularly limited. As an example, the content of the powder in the stock solution is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more. The content of the powder is preferably 5% by mass or less, and more preferably 3% by mass or less in the undiluted solution. When the content of the powder is within the above range, the effect of blending the powder can be easily obtained, and the spray composition is less likely to cause clogging in the discharge passage when discharged.

The method for preparing the stock solution is not particularly limited. The undiluted solution can be prepared by a conventionally known method. For example, the undiluted solution can be prepared by mixing an optional component such as the above alcohol, water or an active ingredient, and adding a hydrofluoroolefin to the mixture.

(Compressed gas)
The compressed gas is blended as a propellant for pressurizing the stock solution and spraying it into a fine mist. Further, the compressed gas is partially dissolved in the undiluted solution, so that when the spray composition is discharged to the outside, the dissolved compressed gas becomes fine bubbles, which promotes the vaporization of the hydrofluoroolefin. The heat of vaporization gives an appropriate feeling of coldness. In addition, the compressed gas adjusts the cooling temperature and the sustainability of the cooling sensation.

The compressed gas contains at least one of carbon dioxide gas and nitrous oxide. The compressed gas has high solubility in hydrofluoroolefins and can promote vaporization of hydrofluoroolefins at the time of spraying to give an excellent cooling sensation to the application site.

Further, in order to adjust the cooling sensation, a compressed gas having a low dissolution amount in the hydrofluoroolefin such as nitrogen, air, oxygen and hydrogen may be used in combination.

The compressed gas is preferably filled so that the pressure in the container at 25 ° C. is 0.2 MPa or more, and more preferably 0.3 MPa or more. Further, the compressed gas is preferably filled so that the pressure in the container at 25 ° C. is 0.8 MPa or less, and more preferably 0.7 MPa or less. By filling the compressed gas so that the pressure is within the above range, the compressed gas is dissolved in the stock solution to a predetermined concentration, and when discharged, the vaporization of the hydrofluoroolefin is promoted to give an excellent cooling sensation. Obtained and the feeling of coldness lasts. The dissolved amount of the compressed gas having an equilibrium pressure of 0.5 MPa at 25 ° C. is preferably 0.3 to 10.0 g in 100 mL of the stock solution.

Returning to the description of the entire spray composition, the method for preparing the spray composition is not particularly limited. As an example, the spray composition is prepared by filling the container body with the above undiluted solution, attaching an aerosol valve to the container body to seal it, filling the compressed gas from the aerosol valve, and saturate the compressed gas into the undiluted solution. Can be manufactured by

As described above, the spray composition of the present embodiment contains a hydrofluoroolefin having a boiling point of 5 to 40 ° C. and an alcohol. When such a stock solution is sprayed with a compressed gas, the vaporization of the hydrofluoroolefin is promoted by the dissolved compressed gas at the application site such as the scalp and the arm, and an excellent cooling sensation is given to the application site. be able to. Also, the feeling of coldness is easy to sustain.

<Injection product>
The injection product of one embodiment of the present invention is an injection product in which the above-mentioned spray composition is filled and the stock solution is pressurized and discharged by a compressed gas. The injection product of the present embodiment may have a configuration capable of pressurizing and injecting the stock solution with a compressed gas, and such a configuration is not particularly limited. Therefore, in the present embodiment, as an example, an injection product mainly including a container body filled with a spray composition and a compressed gas and a valve mechanism attached to the container body will be described.

(Container body)
The container body is a container filled with undiluted solution and compressed gas. The container body is a bottomed tubular pressure-resistant container having an opening at the top. The opening is a filling port for filling the stock solution, and is closed by a valve mechanism described later.

The material of the container body is not particularly limited. As an example, the material of the container body is a metal such as aluminum or tinplate, various synthetic resins, pressure-resistant glass, or the like.

(Valve mechanism)
The valve mechanism is a member for closing and sealing the opening of the container body. Further, the valve mechanism mainly includes a housing, a stem having a stem hole communicating with the inside and outside of the container body, and a stem rubber attached around the stem hole and for closing the stem hole. The housing houses the stem. The stem is a substantially cylindrical portion, and a passage in the stem through which the spray composition taken into the housing at the time of discharge passes is formed. A stem hole is formed in the vicinity of the lower end of the in-stem passage to communicate the space in the housing with the in-stem passage. An injection member for discharging the spray composition is attached to the upper end of the stem. The stem rubber is a member that is attached around the stem hole and appropriately shields the internal space of the housing from the outside. The stem rubber is a disk-shaped member, and when not ejected, the inner peripheral surface is brought into close contact with the outer peripheral surface on which the stem hole of the stem is formed to close the stem hole.

(Injection member)
The injection member is a member for discharging the spray composition and is attached to the upper end of the stem. The injection member mainly includes a nozzle portion in which an injection hole is formed and an operation portion operated by a user with a finger or the like. The spray composition is discharged from the discharge hole. The number and shape of the discharge holes are not particularly limited. There may be a plurality of discharge holes. Further, the shape of the discharge hole may be a substantially circular shape, a substantially angular shape, or the like.

In the injection product of the present embodiment, when the injection member is pushed down, the stem of the valve mechanism is pushed down. As a result, the stem rubber bends downward and the stem hole is opened. As a result, the inside of the container body and the outside communicate with each other. When the inside and the outside of the container body communicate with each other, the liquid level of the stock solution is pressed by the pressure of the compressed gas mainly present in the gas phase portion of the container body. As a result, the undiluted solution is taken into the housing, then passes through the stem hole and the passage in the stem, is sent to the injection member, and then is discharged from the discharge hole.

Hereinafter, the present invention will be described in more detail with reference to Examples. The present invention is not limited to these examples.

(Example 1)
The stock solution 1 was prepared according to the formulation (unit: mass%) shown in Table 1 below and filled in the container body. An aerosol valve was attached to the opening of the container body, carbon dioxide gas was filled from the stem, and the pressure inside the container body was adjusted to 0.5 MPa (25 ° C.).

(Examples 2 to 7, Comparative Examples 1 to 2)
The stock solution was prepared and filled in the container body by the same method as in Example 1 except that the types and blending ratios of the stock solution and the compressed gas used were changed to the formulations shown in Tables 1 and 2.

The spray compositions prepared in Examples 1 to 7 and Comparative Examples 1 and 2 were evaluated by the following evaluation methods. The results are shown in Table 3.

<Soluble amount>
The amount of compressed gas dissolved in 100 mL of the undiluted solution was calculated from the filling amount of the compressed gas when the equilibrium pressure became 0.5 MPa at 25 ° C., the filling capacity of the undiluted solution, and the volume of the gas phase in the container.

<Temperature>
Using a jet product immersed in a constant temperature water tank adjusted to 25 ° C for 1 hour, 10 mL was sprayed into a cup, and the temperature of the jet after a predetermined time was measured with a digital thermometer (CT-1200D, manufactured by CUSTOM corporation). And a thermocouple sensor (LK-300, manufactured by CUSTOM corporation). FIG. 1 is a graph showing the relationship between the temperature of the propellant and the elapsed time.

<Cold feeling>
The spray composition was sprayed on the arm using a spray product immersed in a constant temperature water bath adjusted to 25 ° C. for 1 hour, and evaluated according to the following evaluation criteria.
(Evaluation criteria)
◯: A comfortable cooling sensation was obtained and lasted.
Δ: A feeling of coldness was felt, but it was not enough.
X: Almost no feeling of coldness was felt.

As shown in Table 3, the spraying compositions of Examples 1 to 7 had a temperature of 0 ° C. or lower (-13.5 to -2.3 ° C.) 5 seconds after injection, and provided an excellent cooling sensation. I was able to grant it. In addition, the spraying compositions of Examples 1 to 7 slowly rise in temperature, and the temperature 100 seconds after injection is 5 ° C. or lower (-0.1 to 4.3 ° C.), and the cooling effect is maintained for a long time. Was done. On the other hand, the spray composition of Comparative Example 1 had a temperature of 1.5 ° C. 5 seconds after injection and a temperature of 7.0 ° C. 100 seconds after injection, and although it was cooled, it was insufficient. In addition, the spray composition of Comparative Example 2 had a temperature of 21.1 ° C. 5 seconds after injection, had almost no cooling effect, and did not change in temperature over time.

(Product example 1, cold lotion)
The undiluted solution 7 was prepared according to the formulation (unit: mass%) described below and filled in the container body. An aerosol valve was attached to the opening of the container body, carbon dioxide gas was filled from the stem, and the pressure inside the container body was adjusted to 0.5 MPa (25 ° C.). The evaluation results are shown in Table 4.

(Undiluted solution 7)
Diisopropyl adipate 0.4
Hydroxypropyl cellulose 0.2
Ethanol 19.6
Menthol 0.2
Water 1.1
Hydrofluoroolefin 78.5
Total 100.0 (mass%)

As shown in Table 4, the cooling sensation lotion of Product Example 1 had a temperature of 0 ° C. or less 5 seconds after injection, and was able to impart an excellent cooling sensation. Further, the cooling sensation lotion of Product Example 1 had a temperature of −0.7 ° C. 100 seconds after injection, and the cooling effect was maintained for a long time.

Claims (3)

It consists of a stock solution containing hydrofluoroolefin and alcohol having a boiling point of 5 to 40 ° C. and a compressed gas.
The compressed gas is a composition for spraying containing at least one of carbon dioxide gas and nitrous oxide. The spray composition according to claim 1, wherein the undiluted solution contains water. The spray composition according to claim 1 or 2, wherein the content of the hydrofluoroolefin is 30 to 90% by mass.

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