JP7568438B2 - Aerosol composition for hair - Google Patents

Description

The present invention relates to an aerosol composition for hair. More specifically, the present invention relates to an aerosol composition for hair that can maintain a uniform composition even when a styling resin is blended at a high concentration, and that has a large spread of spray particles.

Conventionally, aerosol products for styling have been developed. Patent Document 1 discloses an aerosol composition for hair that contains a styling resin, an alcohol, and a hydrofluoroolefin having a boiling point of less than 5°C.

US Patent Application Publication No. 2013/0280178

Patent Document 1 describes a hairspray that uses hydrofluoroolefins for safety against fire. However, hydrofluoroolefins with boiling points below 5°C have poor solubility in styling resins, so the amount of styling resin that can be blended is limited, and sufficient setting power cannot be obtained.

The present invention was made in consideration of these conventional problems, and aims to provide an aerosol composition for hair that has excellent solubility of styling resin, can maintain a uniform composition even when styling resin is blended at a high concentration, and has a wide spread of spray particles.

The present invention, which solves the above problems, mainly includes the following configurations:

(1) An aerosol composition for hair that contains a concentrate containing a styling resin and alcohol, a hydrofluoroolefin having a boiling point of 5 to 40°C, and a liquefied gas having a boiling point of less than 5°C, and forms a homogeneous phase.

With this configuration, even if the hair aerosol composition contains a styling resin in an amount sufficient to provide the desired setting power, the styling resin can be stably dissolved to maintain a uniform composition, resulting in a hairspray with a wide spread of spray particles.

(2) The aerosol composition for hair according to (1), in which the content (solid content) of the styling resin in the concentrate is 5 to 30% by mass.

This configuration makes it easier for the aerosol composition for hair to achieve the desired high setting power.

(3) The aerosol composition for hair according to (1) or (2), in which the content of the hydrofluoroolefin having a boiling point of 5 to 40°C is 5 to 70% by mass in the aerosol composition for hair.

With this configuration, even if the hair aerosol composition contains a styling resin to achieve the desired resin amount, the styling resin can be stably dissolved to maintain a uniform composition, making it easier for the spray particles to spread and allowing the spray particles to be applied thinly and evenly to the hair.

(4) The aerosol composition for hair according to any one of (1) to (3), wherein the content of the liquefied gas having a boiling point of less than 5°C is 10 to 60% by mass in the aerosol composition for hair.

With this configuration, the aerosol composition for hair can be sprayed with appropriate force and easily adheres to the hair.

(5) The aerosol composition for hair according to any one of (1) to (4), wherein the liquefied gas having a boiling point of less than 5°C contains a hydrofluoroolefin having a boiling point of less than 5°C.

With this configuration, the hair aerosol composition easily forms a hard film on the hair, making it easier to achieve strong setting power.

(6) The aerosol composition for hair according to any one of (1) to (5), wherein the liquefied gas having a boiling point of less than 5°C contains a hydrofluoroolefin having a boiling point of less than 5°C, and the content of the hydrofluoroolefin having a boiling point of less than 5°C is 5 to 60% by mass in the aerosol composition for hair.

With this configuration, the aerosol composition for hair can be sprayed with a moderate force, making it easy for it to adhere to the hair and provide strong setting power.

(7) The aerosol composition for hair according to any one of (1) to (6), wherein the liquefied gas having a boiling point of less than 5°C contains a hydrofluoroolefin having a boiling point of less than 5°C, and the ratio (mass ratio) of the content of the styling resin to the content of the hydrofluoroolefin having a boiling point of less than 5°C in the aerosol composition for hair is 1/15 to 4/5.

This configuration makes it easier for the hair aerosol composition to achieve high set retention.

(8) The hair aerosol composition according to any one of (1) to (7), wherein the ratio (mass ratio) of the content of the styling resin to the content of the hydrofluoroolefin having a boiling point of 5 to 40°C in the hair aerosol composition is 1/30 to 2/1.

With this configuration, the hair aerosol composition can stably dissolve the styling resin even at low temperatures, maintaining a uniform composition, and it is easy to obtain a hairspray with a wide spread of spray particles.

The present invention provides an aerosol composition for hair that has excellent solubility of the styling resin, can maintain a uniform composition even when the styling resin is blended in high concentration, and has a wide spread of spray particles.

<Aerosol Composition for Hair>
The aerosol composition for hair according to one embodiment of the present invention contains a concentrate containing a styling resin and an alcohol, a hydrofluoroolefin having a boiling point of 5 to 40° C., and a liquefied gas having a boiling point of less than 5° C., and forms a homogeneous phase. Each of these will be described below. Note that forming a homogeneous phase refers to a state in which the liquid phase of the aerosol composition for hair is homogeneous and free of turbidity or precipitates due to the styling resin.

(undiluted solution)
The concentrate comprises a styling resin and alcohol.

Styling resins Styling resins are formulated to set the hair.

There is no particular limitation on styling resins. Examples of styling resins include anionic resins such as (acrylates/diacetoneacrylamide) copolymers, (acrylates/alkyl (C1-18) acrylate/alkyl (C1-8) acrylamide) copolymers, and alkanolamine acrylates; amphoteric resins such as (octylacrylamide/hydroxypropyl acrylate/butylaminoethyl methacrylate) copolymers, dialkylaminoethyl (meth)acrylate-(meth)acrylic acid alkyl ester copolymers, and octylamide acrylate-hydroxypropyl acrylate-butylaminoethyl methacrylate copolymers; cationic resins such as vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer sulfate and hydroxyethyl cellulose-dimethyl diallyl ammonium chloride; emulsion resins such as alkyl acrylate copolymer emulsions and alkyl acrylate-styrene copolymer emulsions; and nonionic resins such as (dimethylacrylamide/hydroxyethyl acrylate/methoxyethyl acrylate) copolymers, vinylpyrrolidone-vinyl acetate copolymers, and hydroxyethyl acrylate-butyl acrylate-methoxyethyl acrylate copolymers. Styling resins may also be used in combination.

In addition, styling resins are preferably blended with neutralizing agents to make them water-soluble and easier to wash off with shampoo, etc.

The neutralizing agent is not particularly limited. Examples of the neutralizing agent include 2-amino-2-methyl-1-propanol (AMP), tetrahydroxypropylethylenediamine, triisopropanolamine (TIPA), 2-amino-2-methyl-1,3-propanediol (AMPD), 2-amino-2-ethyl-1,3-propanediol (AEPD), triethanolamine (TEA), diisopropanolamine (DIPA), sodium hydroxide, and potassium hydroxide. Neutralizing agents may be used in combination. It is preferable to add the neutralizing agent in an amount that results in a degree of neutralization of approximately 100%.

The content (solid content) of the styling resin is not particularly limited. As an example, the content (solid content) of the styling resin in the undiluted solution is preferably 5% by mass or more, and more preferably 7% by mass or more. The content (solid content) of the styling resin in the undiluted solution is preferably 30% by mass or less, and more preferably 25% by mass or less. When the content (solid content) of the styling resin is within the above range, the aerosol composition for hair is likely to exhibit the desired setting power.

Alcohol Alcohol is blended in to dissolve the styling resin in the concentrate to form a homogeneous phase, to form the hair aerosol composition into particles of a size that easily adheres to hair, to be sprayed evenly, and to adhere to hair to adjust drying properties.

The alcohol is not particularly limited. For example, the alcohol is a monohydric alcohol having 2 to 3 carbon atoms, such as ethanol or isopropanol.

The alcohol content is not particularly limited. For example, the alcohol content in the concentrate is preferably 65% by mass or more, and more preferably 70% by mass or more. The alcohol content in the concentrate is preferably 93% by mass or less, and more preferably 90% by mass or less. By having the alcohol content within the above range, the sprayed hair aerosol composition tends to have a particle size that easily adheres to hair, preventing inhalation by consumers and allowing adjustment of dryness.

Optional Components The concentrate of the present embodiment may contain an active ingredient as an optional ingredient in addition to the above-mentioned styling resin and alcohol. The active ingredient is not particularly limited. For example, the active ingredient may be an ultraviolet absorber such as diethylaminohydroxybenzoylhexyl benzoate, 2-ethylhexyl paramethoxycinnamate, ethylhexyl triazone, oxybenzene, hydroxybenzophenone sulfonic acid, dihydroxybenzophenone sodium sulfonate, or dihydroxybenzophenone; an ultraviolet scattering agent such as zinc oxide, titanium oxide, or octyltrimethoxysilane-coated titanium oxide; vitamins such as retinol, retinol acetate, retinol palmitate, calcium pantothenate, ascorbic acid, sodium ascorbate, dl-α-tocopherol, tocopherol acetate, tocopherol, tocopherol nicotinate, dibenzoylthiamine, riboflavin, or a mixture thereof; Swertia japonica extract, rosemary extract, or the like. extracts of glycerin, 1,3-butylene glycol, propylene glycol, hexylene glycol, dipropylene glycol, diglycerin, hyaluronic acid and other moisturizing agents, floral, green, citrus green, green floral, citrus, rose, rosewood, herbal wood, lemon, peppermint and other fragrances, aluminum powder, silica, iron oxide and other pigments, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Red No. 2, Red No. 3, Blue No. 1, Blue No. 2 and other dyes, polysorbate, polyglycerol fatty acid ester, polyoxyethylene alkyl ether and other surfactants, chelating agents such as edetate disodium, preservatives such as paraben and phenoxyethanol, and various oil components such as hydrocarbon oil, silicone oil, ester oil and other.

When an active ingredient is blended, the content of the active ingredient is not particularly limited. As an example, the content of the active ingredient in the undiluted solution is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more. The content of the active ingredient in the undiluted solution is preferably 20% by mass or less, and more preferably 15% by mass or less. When the content of the active ingredient is within the above range, the resulting hair aerosol composition is likely to achieve the desired effect by blending the active ingredient.

The content of the concentrate is not particularly limited. As an example, the content of the concentrate in the aerosol composition for hair is preferably 10% by mass or more, and more preferably 15% by mass or more. The content of the concentrate in the aerosol composition for hair is preferably 80% by mass or less, and more preferably 70% by mass or less. By adjusting the content of the concentrate within the above range, the aerosol composition for hair is adjusted so that the particles have an appropriate size when sprayed, and it is easy to obtain the desired high setting power.

The method for preparing the concentrate is not particularly limited. The concentrate can be prepared by a conventionally known method. For example, the concentrate can be prepared by mixing the styling resin and optional ingredients such as alcohol and active ingredients.

(Hydrofluoroolefins having a boiling point of 5 to 40°C)
The hydrofluoroolefin having a boiling point of 5 to 40° C. is blended to increase the solubility of the styling resin in the aerosol composition for hair and to increase the spread of the sprayed particles. In addition, the hydrofluoroolefin having a boiling point of 5 to 40° C. increases the drying property of the aerosol composition for hair that has adhered to the hair.

There is no particular limitation on the hydrofluoroolefins having a boiling point of 5 to 40°C. 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), etc.

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 hair aerosol composition is preferably 5% by mass or more, more preferably 7% by mass or more. The content of the hydrofluoroolefin having a boiling point of 5 to 40°C in the hair aerosol composition is preferably 70% by mass or less, more preferably 65% by mass or less. By having the content of the hydrofluoroolefin having a boiling point of 5 to 40°C within the above range, the hair aerosol composition maintains a uniform state in which the styling resin is dissolved, even if it contains a styling resin in an amount that provides a desired setting power, and when sprayed, the spray particles spread widely, and the effect of increasing the drying property of the deposit when it adheres to the hair is easily obtained.

The ratio (mass ratio) of the content of the styling resin to the hydrofluoroolefin having a boiling point of 5 to 40°C is preferably 1/30 to 2/1, and more preferably 1/20 to 14/25. By having the ratio of the content of the styling resin to the hydrofluoroolefin having a boiling point of 5 to 40°C within the above range, the aerosol composition for hair stably dissolves the styling resin even at low temperatures, making it easier to obtain a uniform composition, and also making it possible to obtain a hairspray with a wide spread of spray particles.

(Liquefied gas with a boiling point below 5°C)
A liquefied gas having a boiling point of less than 5°C is mixed with a hydrofluoroolefin having a boiling point of 5 to 40°C to adjust the pressure of the aerosol composition for hair so that the composition can be sprayed onto the hair with an appropriate spray force, making the composition easy to adhere to the hair and providing the desired high setting power.

The liquefied gas having a boiling point of less than 5°C is not particularly limited. For example, the liquefied gas having a boiling point of less than 5°C includes hydrofluoroolefins such as trans-1,3,3,3-tetrafluoroprop-1-ene (HFO-1234ze(E), boiling point -19°C), trans-2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf, boiling point -30°C), normal butane (boiling point -0.5°C), isobutane (boiling point -11.7°C), propane (boiling point -42°C), and mixtures thereof, such as liquefied petroleum gas, dimethyl ether (boiling point -25°C), and it is preferable to include a hydrofluoroolefin having a boiling point of less than 5°C. In addition, liquefied gases having a boiling point of less than 5°C may be used in combination.

The content of the liquefied gas having a boiling point of less than 5°C is not particularly limited. For example, the content of the liquefied gas having a boiling point of less than 5°C in the aerosol composition for hair is preferably 10% by mass or more, more preferably 15% by mass or more. The content of the liquefied gas having a boiling point of less than 5°C in the aerosol composition for hair is preferably 60% by mass or less, more preferably 55% by mass or less. When the content of the liquefied gas having a boiling point of less than 5°C is within the above range, the aerosol composition for hair is such that the sprayed particles easily adhere to the hair, and the desired high setting power is easily obtained.

When a hydrofluoroolefin having a boiling point of less than 5°C is included, the content of the hydrofluoroolefin having a boiling point of less than 5°C is not particularly limited. For example, the content of the hydrofluoroolefin having a boiling point of less than 5°C in the aerosol composition for hair is preferably 5% by mass or more, more preferably 10% by mass or more. The content of the hydrofluoroolefin having a boiling point of less than 5°C in the aerosol composition for hair is preferably 60% by mass or less, more preferably 55% by mass or less. When the content of the hydrofluoroolefin having a boiling point of less than 5°C is within the above range, the aerosol composition for hair is likely to form a hard film on the hair and is likely to provide strong setting power.

The ratio (mass ratio) of the content of the styling resin to the hydrofluoroolefin having a boiling point of less than 5°C is preferably 1/15 to 4/5, and more preferably 1/12 to 7/15. When the ratio of the content of the styling resin to the hydrofluoroolefin having a boiling point of less than 5°C is within the above range, the aerosol composition for hair is likely to achieve high set retention.

The hair aerosol composition may contain a hydrofluoroolefin having a boiling point of 5 to 40°C, a liquefied gas having a boiling point of less than 5°C, or a compressed gas.

The compressed gas is not particularly limited. Examples of compressed gases include nitrogen, air, oxygen, hydrogen, carbon dioxide, and nitrous oxide.

The compressed gas is preferably filled so that the pressure inside the container at 25°C is 0.3 MPa, and more preferably 0.4 MPa or more. The compressed gas is preferably filled so that the pressure inside the container at 25°C is 0.7 MPa or less, and more preferably 0.6 MPa or less.

Returning to the explanation of the aerosol composition for hair, the method for producing the aerosol composition for hair of this embodiment is not particularly limited. As an example, the aerosol composition for hair can be prepared by filling a stock solution in a pressure-resistant container, attaching a valve to the opening of the pressure-resistant container, filling a mixture of hydrofluoroolefin having a boiling point of 5 to 40°C and liquefied gas having a boiling point of less than 5°C in a predetermined ratio through the valve, and mixing the stock solution in the container. Also, a spray product can be produced by attaching a spray member to the stem of the valve. The hydrofluoroolefin having a boiling point of 5 to 40°C and the liquefied gas having a boiling point of less than 5°C may be filled in that order. In this case, precipitation of the resin can be prevented even during filling.

The aerosol product filled with the aerosol composition for hair of this embodiment mainly comprises a container filled with the aerosol composition for hair and a valve attached to the container.

(container)
The container is a pressure-resistant container filled with the aerosol composition for hair, and has a cylindrical shape with a bottom. A valve is attached to the opening of the container.

The material of the container is not particularly limited. Examples of the material of the container include metals such as aluminum and tinplate, various synthetic resins, and pressure-resistant glass.

(valve)
The valve is a member for closing and sealing the opening of the container. The valve mainly includes a housing, a stem having a stem hole communicating between the inside and outside of the container, a spring for biasing the stem upward, and a stem rubber attached around the stem hole for closing the stem hole. The housing accommodates the stem, the stem rubber, and the spring. The stem is a substantially cylindrical part, and has an internal stem passage through which the aerosol composition for hair taken into the housing at the time of spraying passes. A stem hole is formed near the lower end of the internal stem passage, which communicates the space in the housing with the internal stem passage. An ejection member for ejecting the aerosol composition for hair is attached to the upper end of the stem. The stem rubber is a member attached around the stem hole for appropriately blocking the internal space of the housing from the outside. The stem rubber is a disk-shaped member, and when not injecting, its inner circumferential surface is brought into close contact with the outer circumferential surface of the stem in which the stem hole is formed, thereby closing the stem hole.

(Injection member)
The spray member is a member for spraying the aerosol composition for hair by opening and closing the valve, and is attached to the upper end of the stem. The spray member mainly includes a nozzle part having a spray hole formed therein, and an operating part operated by a user with a finger or the like. The aerosol composition for hair 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 be approximately circular, approximately angular, or the like.

In the aerosol product of this embodiment, when the ejection member is pressed down, the stem of the valve is pressed down. This causes the stem rubber to bend downward and the stem hole to open. As a result, the inside of the container is connected to the outside. When the inside of the container is connected to the outside, the aerosol composition for hair is taken into the housing by the pressure difference between the pressure inside the container and the outside, and then passes through the stem hole and the stem passage, is sent to the ejection member, and is then ejected from the ejection hole.

As described above, the aerosol composition for hair of this embodiment contains a concentrate containing a styling resin and alcohol, a hydrofluoroolefin having a boiling point of 5 to 40°C, and a liquefied gas having a boiling point of less than 5°C, and forms a homogeneous phase. Even if the aerosol composition for hair contains a styling resin in an amount sufficient to provide the desired setting power, the styling resin is stably dissolved, making it easy to maintain a homogeneous composition, and a hairspray with a wide spread of spray particles is obtained.

The present invention will be described in more detail below with reference to examples. The present invention is not limited to these examples.

Example 1
A stock solution 1 was prepared according to the recipe (unit: mass %) shown in Table 1 below, and 60 g of the stock solution 1 was filled into an aluminum aerosol container. Then, an aerosol valve was fixed to the opening of the aerosol container to seal it, and 20.0 g of hydrofluoroolefin (trans-1-chloro-3,3,3-trifluoropropene, boiling point 19° C.) and 20.0 g of hydrofluoroolefin (trans-1,3,3,3-tetrafluoroprop-1-ene, boiling point −19° C.) were filled from the stem, and the stock solution and the hydrofluoroolefin were mixed to prepare an aerosol product.

(Examples 2 to 15, Comparative Examples 1 to 4)
A stock solution was prepared in the same manner as in Example 1, except that the formulation of the stock solution was changed to the formulation shown in Table 1. An aerosol composition for hair was prepared according to the formulation shown in Table 2 and filled into an aerosol container to produce an aerosol product.

Using the aerosol products prepared in Examples 1 to 15 and Comparative Examples 1 to 4, the solubility, spread of spray particles, setting retention, and setting hardness were measured using the following evaluation methods. The results are shown in Table 2.

<Solubility>
The hair aerosol composition was filled into a transparent pressure-resistant glass aerosol container. The aerosol product was stored in a freezer at -20°C for 24 hours, and the low-temperature solubility was evaluated according to the following evaluation criteria.
(Evaluation Criteria)
◯: The liquid phase of the aerosol composition for hair was transparent and uniform, without any resin precipitate or turbidity.
×: The liquid phase of the aerosol composition for hair had resin precipitates or was cloudy.

<Spread of spray particles>
The aerosol product was immersed in a constant temperature water bath at 25°C for 1 hour to adjust the aerosol composition for hair to 25°C. Filter paper was placed 15 cm from the nozzle and sprayed perpendicularly to the filter paper for 1 second, and the spread of the spray particles (the vertical and horizontal sizes (cm) of the spray particles attached to the filter paper) was measured.

<Set retention force>
The aerosol product was immersed in a thermostatic water bath at 25° C. for 1 hour to adjust the temperature of the aerosol composition for hair to 25° C., and the aerosol composition for hair was sprayed onto a 50 cm long hair bundle, which was then wrapped around curlers until dry. The dried hair bundle was hung, and the initial length (L) of the hung hair bundle and the length (l) of the hair bundle after 24 hours were measured. The degree to which the curls of the hair bundle were maintained after 24 hours (set retention) was calculated based on the formula defined below, and evaluated according to the following evaluation criteria.
Set retention (%) = (50 - l) / (50 - L) x 100
(Evaluation Criteria)
⊚: The set retention was 55% or more of the initial length of the hair bundle when hung.
◯: The set retention was 45% or more and less than 55% of the initial length of the hair bundle when hung.
×: The set retention was less than 45% of the initial length of the hair bundle when hung.

<Set hardness>
The aerosol product was immersed in a thermostatic water bath at 25° C. for 1 hour to adjust the temperature of the aerosol composition for hair to 25° C., and the aerosol composition for hair was sprayed onto a 10 cm long hair bundle and dried. A load was applied to the dried hair bundle from a vertical direction, and the load at which the hair bundle was bent by 10 mm was measured and evaluated according to the following evaluation criteria.
(Evaluation Criteria)
⊚: The load required to bend the hair bundle was 15 N or more.
A: The load required to bend the hair bundle was 10 N or more and less than 15 N.
Δ: The load required to bend the hair bundle was less than 10 N.

As shown in Table 2, the hair aerosol compositions in the aerosol products of Examples 1 to 15 had a uniform composition, with the styling resin dissolved stably even at low temperatures. In addition, the hair aerosol compositions in the aerosol products of Examples 3 to 15, in which the mass ratio of the styling resin to the hydrofluoroolefin having a boiling point of 5 to 40°C was 1/20 to 14/25, had a large spread of spray particles. In addition, the hair aerosol compositions in the aerosol products of Examples 2 and 4 to 11, in which a hydrofluoroolefin having a boiling point of less than 5°C was used as the liquefied gas having a boiling point of less than 5°C and the mass ratio of the resin to the hydrofluoroolefin having a boiling point of less than 5°C was 1/12 to 7/15, had very excellent set retention and set hardness. In addition, the hair aerosol compositions in the aerosol products of Examples 12 to 15, in which a part or all of the hydrofluoroolefin having a boiling point of less than 5°C was LPG or DME, had very excellent set retention. On the other hand, among Comparative Examples 1 to 3 that do not contain a hydrofluoroolefin having a boiling point of 5 to 40°C, the aerosol composition for hair in the aerosol product of Comparative Example 1, in which a liquefied gas having a boiling point of less than 5°C was used as the hydrofluoroolefin, and Comparative Example 2, in which LPG was used, had poor solubility and produced precipitates. The aerosol composition for hair in the aerosol product of Comparative Example 3, in which a hydrofluoroolefin having a boiling point of 5 to 40°C was not contained and a liquefied gas having a boiling point of less than 5°C was used as DME, had good solubility and set hardness, but the spread of the spray particles was small and the set retention was poor. Comparative Example 4, in which isopentane was used as the hydrofluoroolefin having a boiling point of 5 to 40°C, had poor solubility and produced precipitates.

Claims (8)

An aerosol composition for hair that contains a concentrate containing a styling resin and alcohol, a hydrofluoroolefin having a boiling point of 5 to 40°C, and a liquefied gas having a boiling point of less than 5°C, and forms a homogeneous phase. The aerosol composition for hair according to claim 1, wherein the content (solid content) of the styling resin in the concentrate is 5 to 30% by mass. The aerosol composition for hair according to claim 1 or 2, wherein the content of the hydrofluoroolefin having a boiling point of 5 to 40°C is 5 to 70 mass% in the aerosol composition for hair. The aerosol composition for hair according to any one of claims 1 to 3, wherein the content of the liquefied gas having a boiling point of less than 5°C is 10 to 60% by mass in the aerosol composition for hair. The aerosol composition for hair according to any one of claims 1 to 4, wherein the liquefied gas having a boiling point of less than 5°C contains a hydrofluoroolefin having a boiling point of less than 5°C. The liquefied gas having a boiling point of less than 5° C. contains a hydrofluoroolefin having a boiling point of less than 5° C.,
The aerosol composition for hair according to any one of claims 1 to 5, wherein the content of the hydrofluoroolefin having a boiling point of less than 5°C is 5 to 60 mass% in the aerosol composition for hair. The liquefied gas having a boiling point of less than 5° C. contains a hydrofluoroolefin having a boiling point of less than 5° C.,
The aerosol composition for hair according to any one of claims 1 to 6, wherein a ratio (mass ratio) of the contents of the styling resin and the hydrofluoroolefin having a boiling point of less than 5°C in the aerosol composition for hair is 1/15 to 4/5. The hair aerosol composition according to any one of claims 1 to 7, wherein the ratio (mass ratio) of the content of the styling resin to the content of the hydrofluoroolefin having a boiling point of 5 to 40°C in the hair aerosol composition is 1/30 to 2/1.