JP7078362B2 - Aerosol composition for quick-drying hair - Google Patents

Description

The present invention relates to an aerosol composition for quick drying of hair. More specifically, the present invention relates to a hair quick-drying aerosol composition capable of quickly drying hair by adsorbing water from wet hair.

Conventionally, a composition for drying hair has been known. Patent Document 1 discloses a hair drying composition containing volatile silicone, methylphenylpolysiloxane, and ethyl alcohol. Further, Patent Document 2 discloses a hair quick-drying cosmetic containing a lower alcohol and spherical powder particles. The hair quick-drying cosmetic described in Patent Document 2 dries the hair by loosening the hair with spherical powder particles and accelerating the evaporation rate of water by the azeotropic phenomenon of lower alcohol and water.

Japanese Unexamined Patent Publication No. 1-168608 Japanese Patent Application Laid-Open No. 2003-286137

However, both the hair drying composition described in Patent Document 1 and the hair quick-drying cosmetic described in Patent Document 2 require a large amount of time to dry the hair.

The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide an aerosol composition for quick-drying hair that can quickly dry hair by adsorbing moisture of wet hair. The purpose.

As a result of diligent research on a composition for drying hair more quickly, the present inventors cool the porous powder by the heat of vaporization by blending a liquefied gas, and the cooled porous powder is used. We have found that the hair can be dried more quickly than before by adsorbing the moisture of the wet hair, and completed the present invention. That is, the present invention that solves the above problems mainly includes the following configurations.

(1) An aerosol composition for quick-drying hair, which comprises a stock solution containing a porous powder and a liquefied gas.

According to such a configuration, the injected porous powder is cooled by the heat of vaporization of the liquefied gas. The cooled porous powder easily adsorbs water on the hair. As a result, the hair quick-drying aerosol composition can shorten the drying time of wet hair.

(2) The aerosol composition for quick drying of hair according to (1), wherein the liquefied gas is contained in an aerosol composition in an amount of 20 to 60% by volume.

According to such a configuration, the sprayed aerosol composition is likely to be appropriately refined. Therefore, the porous powder contained in the sprayed aerosol composition tends to adhere evenly to the hair. As a result, the hair quick-drying aerosol composition can shorten the drying time of wet hair.

(3) The aerosol composition for quick-drying hair according to (1) or (2), wherein the liquefied gas is a hydrofluoroolefin.

With such a configuration, the porous powder is likely to be dispersed in the aerosol composition. Therefore, the porous powder contained in the sprayed aerosol composition tends to adhere evenly to the hair. As a result, the hair quick-drying aerosol composition can shorten the drying time of wet hair.

(4) The aerosol composition for quick-drying hair according to any one of (1) to (3), wherein the porous powder has a specific surface area of 300 to 1500 (m ² / g).

According to such a configuration, a large amount of liquefied gas is adsorbed in the pores of the porous powder in the aerosol container. Therefore, the injected porous powder is more likely to be cooled by the heat of vaporization of the liquefied gas. Therefore, the cooled porous powder tends to adsorb the moisture of the hair more quickly. As a result, the hair quick-drying aerosol composition can shorten the drying time of wet hair.

(5) The aerosol composition for quick-drying hair according to any one of (1) to (4), wherein the porous powder is zeolite.

According to such a configuration, the porous powder becomes warm due to the heat of adsorption of water, promotes the drying of water, and can shorten the drying time.

According to the present invention, it is possible to provide an aerosol composition for quick-drying hair that can quickly dry hair by adsorbing water on wet hair.

<Aerosol composition for quick drying of hair>
An aerosol composition for quick-drying hair (hereinafter, also referred to as “aerosol composition”) according to an embodiment of the present invention will be described in detail. The aerosol composition of the present embodiment comprises a stock solution containing a porous powder and a liquefied gas.

(Undiluted solution)
The undiluted solution is a liquid component of the aerosol composition and contains a porous powder.

-Porous powder The porous powder is blended to adsorb the moisture of the hair and shorten the drying time. The porous powder is not particularly limited as long as it is provided with a large number of pores capable of adsorbing water. For example, the porous powder is silica, zeolite or the like. The porous powder may be used in combination. When the porous powder is zeolite, the porous powder becomes warm due to the heat of adsorption when the moisture is adsorbed, which promotes the drying of the moisture and shortens the drying time.

The specific surface area of the porous powder is preferably 300 (m ² / g) or more, and more preferably 350 (m ² / g) or more. The specific surface area of the porous powder is preferably 1500 (m ² / g) or less, and more preferably 1300 (m ² / g) or less. When the specific surface area is within the above range, the porous powder easily adsorbs water.

In the present embodiment, the porous powder has a liquefied gas adsorbed in the pores in the aerosol container and is sprayed together with the liquefied gas to be cooled by the heat of vaporization of the liquefied gas. The cooled porous powder can adsorb moisture more quickly. Thereby, the aerosol composition can efficiently adsorb and dry the moisture of the hair with a short spraying time.

The content of the porous powder is not particularly limited. For example, the content of the porous powder is preferably 0.01% by mass or more, more preferably 0.05% by mass or more in the undiluted solution. The content of the porous powder is preferably 3% by mass or less, and more preferably 2% by mass or less in the undiluted solution. When the content of the porous powder is less than 0.01% by mass, the aerosol composition cannot sufficiently adsorb water, and the effect of shortening the drying time tends to be difficult to obtain. On the other hand, when the content of the porous powder exceeds 3% by mass, the dried hair tends to appear white due to the porous powder. The content of the porous powder may be appropriately increased or decreased together with the above-mentioned specific surface area in consideration of the amount of water to be adsorbed.

The undiluted solution preferably contains alcohol, a dispersant, and an oil content in addition to the porous powder.

-Alcohol Alcohol is suitably blended as a drying aid for facilitating the vaporization of water in the hair due to the azeotropic phenomenon, and as a solvent for dispersing the porous powder in the container filled with the aerosol composition. .. Alcohol is not particularly limited. The alcohol is, for example, a monohydric alcohol having 2 to 5 carbon atoms such as ethanol and isopropanol. Alcohol may be used in combination.

The content of alcohol is not particularly limited. For example, the content of alcohol is preferably 70% by mass or more, and more preferably 75% by mass or more in the undiluted solution. The alcohol content in the undiluted solution is preferably 97% by mass or less, more preferably 95% by mass or less. When the alcohol content is less than 70% by mass, the aerosol composition is difficult to obtain the effect of shortening the drying time of the hair. On the other hand, when the alcohol content exceeds 97% by mass, the hair is easily degreased and becomes dry after drying.

-Dispersant The dispersant disperses the porous powder in the aerosol composition by shaking the product before use because the porous powder does not firmly aggregate at the bottom of the container when the product is left to stand for a long time. It is suitably blended for the purpose of facilitating the production. The dispersant is not particularly limited. For example, dispersants include polyhydric alcohol fatty acid esters such as propylene glycol dicaprate and propylene glycol dicaprylate, polyoxyethylene alkyl ethers, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, and poly. Nonionic surfactants such as oxyethylene glycerin fatty acid ester, polyoxyethylene polyoxypropylene alkyl ether, polyethylene glycol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether fatty acid ester, polyoxyethylene sorbit fatty acid ester, etc. Is. Dispersants may be used in combination.

When the dispersant is blended, the content of the dispersant is not particularly limited. For example, the content of the dispersant is preferably 0.01% by mass or more, more preferably 0.1% by mass or more in the undiluted solution. The content of the dispersant is preferably 3% by mass or less, and more preferably 2% by mass or less in the undiluted solution. When the content of the dispersant is less than 0.01% by mass, the aerosol composition may not sufficiently obtain the effect of dispersing the porous powder. On the other hand, when the content of the dispersant exceeds 3% by mass, the dispersant tends to remain on the hair.

-Oil content The oil content is suitably blended for the purpose of giving gloss to the hair after drying and improving combing. The oil content is not particularly limited. For example, the oil content is silicone oil such as methylpolysiloxane, octamethyltrisiloxane, cyclopentasiloxane, methylphenylpolysiloxane, isopropyl myristate, myristyl myristate, decyl oleate, isostearyl laurate, isosetyl myristate, myristic acid. Isostearyl, octyldodecyl myristate, octyl palmitate, octyl stearate, octyldodecyl oleate, ethyl isostearate, cetyl isooctanate, ethylene glycol dioctanoate, ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol dioate, tricapryl Glyceryl acid, tri (capric acid / capric acid) glyceryl, glyceryl triisostearate, trimethylolpropane tri2-ethylhexanoate, octyldodecyl neopentate, hexyldecyl dimethyloctanoate, dioctyl succinate, diisopropyl adipate, succinic acid Ester oils such as diethoxyethyl, olive oil, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, rapeseed oil, sesame oil, castor oil, flaxseed oil, safflower oil, jojoba oil, malt oil, palm Oils, oils and fats such as palm oil, liquid paraffins, isoparaffins, hydrocarbon oils such as squalane and squalane, higher alcohols such as cetyl alcohol and myristyl alcohol. Among these, the oil content preferably contains volatile silicone oil or hydrocarbon oil from the viewpoint of shortening the drying time of the hair. The oil may be used in combination.

When the oil content is blended, the oil content is not particularly limited. For example, the content of the oil content is preferably 1% by mass or more, more preferably 2% by mass or more in the undiluted solution. The oil content is preferably 25% by mass or less, more preferably 20% by mass or less in the undiluted solution. When the oil content is less than 1% by mass, the aerosol composition tends not to sufficiently obtain the effect of blending the oil content. On the other hand, when the oil content exceeds 25% by mass, the oil content tends to take a long time to dry the hair.

-Active ingredient The undiluted solution may contain active ingredients such as moisturizers, conditioning agents, and fragrances. The active ingredient may be used in combination.

The moisturizer is, for example, propylene glycol, 1,3-butylene glycol, glycerin, hyaluronic acid and the like.

The conditioning agent is, for example, a cationic surfactant, a cationic polymer, or the like. Cationic surfactants include alkylammonium salts such as cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, lauryltrimethylammonium chloride; alkylbenzylammonium salts; stearylamine acetate; polyoxyethylene laurylamine, polyoxyethylene. It is a polyoxyethylene alkylamine such as stearylamine. Cationic polymers include cationized cellulose derivatives, cationic starches, cationized guar gum derivatives, homopolymers of diallyl quaternary ammonium salts, diallyl quaternary ammonium salt / acrylamide copolymers, quaternized polyvinylpyrrolidone derivatives, polyglycolpolyamine condensation. , Vinyl imidazolium trichloride / vinylpyrrolidone copolymer, hydroxyethyl cellulose / dimethyldiallylammonium chloride copolymer, vinylpyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer, polyvinylpyrrolidone / alkylaminoacrylate copolymer, polyvinyl Pyrrolidone / alkylaminoacrylate / vinylcaprolactum copolymer, vinylpyrrolidone / methacrylamidepropyltrimethylammonium chloride copolymer, alkylacrylamide / acrylate / alkylaminoalkylacrylamide / polyethylene glycol methacrylate copolymer, adipic acid / dimethylaminohydroxypropylethylene It is a triamine copolymer or the like.

The fragrance is, for example, a synthetic fragrance, a natural vegetable fragrance, or the like. Synthetic fragrances include single fragrances such as hydrocarbon fragrances, alcohol fragrances, ester fragrances, aldehyde fragrances, ketone fragrances, ether fragrances, and phenol fragrances, and compound fragrances prepared using these. Hydrocarbon-based fragrances include limonene, pinene, terpinene and the like. Alcohol-based fragrances include heptyl alcohol, octyl alcohol, nonyl alcohol, benzyl alcohol, 2-methyl-1-hexanol, 3-methyl-1-hexanol, citronellol, geraniol, linalol, L-menthol, methyl-n-butylcarbinol. , Methylethylisopropylcarbinol, methylhexylcarbinol, methylphenylcarbinol, ethylphenylcarbinol, methylbenzylcarbinol, phenylethyl alcohol, terepineol, dihydromilsenol and the like. Ester-based fragrances include isobutyl acetate, n-amyl acetate, isoamyl acetate, n-hexyl acetate, n-octyl acetate, n-decyl acetate, benzyl acetate, β-phenylethyl acetate, geranyl acetate, l-mentyl acetate, and linalyl acetate. , N-amylpropinate, isoamylpropinate, linarylpropinate, benzylpropinate, ethylbutyrate, isopropylbutyrate, hexylbutyrate, benzylbutyrate, ethylisobutyrate, isopropylisobutyrate, n-butylisobutyrate Rates, isoamylisobutyrate, benzylisobutyrate, ethylvalerate, propylvalerate, butylvalerate, isoamylvalerate, heptylvalerate, benzylvalerate, ethylbenzoate, isobutylphenylacetate, methylsalicylate and the like. The aldehyde-based fragrance is n-octylaldehyde, n-nonalaldehyde, n-decylaldehyde, citronellal, citral, phenylacetaldehyde and the like. Ether-based fragrances include ketone-based fragrances such as ethylisoamylketone, methylheptenone, acetophenone, benzalacetone, and o-aminoacetophenone, geranylmethyl ether, cineole, ethylbenzyl ether, and estragole. Examples of the phenolic fragrance include anethole and eugenol. Examples of natural vegetable fragrances include orange oil, grapefruit oil, anis oil, peppermint oil, spearmint oil, rose oil, lavender oil, lemon oil, lemon eucalyptus, cayupte, claricage, coriander and the like.

When the active ingredient is blended, the content of the active ingredient is not particularly limited. For example, the content of the active ingredient is preferably 0.01% by mass or more, more preferably 0.05% 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 less than 0.01% by mass, the aerosol composition may not be sufficiently effective by blending the active ingredient. On the other hand, when the content of the active ingredient exceeds 20% by mass, the aerosol composition tends to be difficult to obtain an effect according to the content of the active ingredient.

In addition to the above-mentioned porous powder, the undiluted solution may contain a powder having a specific surface area of less than 300 m ² / g for the purpose of improving combability. Such powders include, for example, talc, kaolin, mica, magnesium carbonate, calcium carbonate, zinc silicate, magnesium silicate, aluminum silicate, calcium silicate, ceramic powder, nylon powder, silk powder, urethane powder, silicone. Powder, polyethylene powder, etc. Such powders may be used in combination.

When a powder having a small specific surface area is contained, the content of such powder is not particularly limited. As an example, the content of the powder is preferably 0.01% by mass or more, more preferably 0.05% by mass or more in the undiluted solution. The content of the powder is preferably 3% by mass or less, and more preferably 2% by mass or less in the undiluted solution. When the content of the powder is less than 0.01% by mass, it is difficult to obtain the effect of blending the powder. On the other hand, when the powder content exceeds 3% by mass, the aerosol composition may be prone to clogging in the filled aerosol device.

The content of the undiluted solution is not particularly limited. For example, the undiluted solution is preferably 40% by volume or more, more preferably 50% by volume or more in the aerosol composition. The undiluted solution is preferably 80% by volume or less, more preferably 75% by volume or less in the aerosol composition. When the content of the undiluted solution is less than 40% by mass, the particles of the sprayed aerosol composition tend to become too fine and difficult to adhere to the hair. On the other hand, when the content of the undiluted solution exceeds 80% by volume, the particles of the sprayed aerosol composition become too coarse, making it difficult for the porous powder to adhere uniformly to the hair, or cooling the porous powder. The action tends to be insufficient, and it tends to be difficult to obtain the effect of shortening the time required for drying the hair.

The method for preparing the undiluted solution is not particularly limited. The undiluted solution can be prepared by a conventionally known method. For example, if the undiluted solution contains a porous powder, alcohol, dispersant, oil, or active ingredient, the undiluted solution dissolves the dispersant, oil, or active ingredient in alcohol, and then disperses the porous powder. Can be prepared by.

(Liquefied gas)
The liquefied gas is blended for the purpose of refining the undiluted solution at the time of injection to uniformly adhere the porous powder to the hair, and cooling the porous powder by the heat of vaporization. The cooled porous powder can quickly and abundantly adsorb water, and can shorten the drying time of hair.

The liquefied gas is not particularly limited. For example, the liquefied gas is normal butane, isobutane, propane and a mixture thereof, liquefied petroleum gas, trans-1,3,3,3-tetrafluoropropa-1-ene, trans-2,3,3,3-. Hydrofluoroolefins such as tetrafluoropropa-1-ene, 1-chloro-3,3,3-trifluoropropene, dimethyl ether and mixtures thereof. Among these, the liquefied gas may contain hydrofluoroolefins because it is easy to disperse the porous powder, it is easy to adhere evenly to the hair, and it is easy to evaporate water by vaporizing the liquefied gas itself. preferable.

The content of the liquefied gas is not particularly limited. For example, the liquefied gas is preferably 20% by volume or more, more preferably 25% by volume or more in the aerosol composition. The liquefied gas is preferably 60% by volume or less, more preferably 50% by volume or less in the aerosol composition. When the content of the liquefied gas is less than 20% by volume, the particles of the sprayed aerosol composition become too coarse, making it difficult for the porous powder to adhere uniformly to the hair, or cooling the porous powder. The action tends to be insufficient, and it tends to be difficult to obtain the effect of shortening the time required for drying the hair. On the other hand, when the content of the liquefied gas exceeds 60% by volume, the particles of the injected aerosol composition become too fine and tend to be difficult to adhere to the hair.

As described above, in the aerosol composition of the present embodiment, the water adhering to the hair is easily vaporized by the sprayed alcohol. Further, the injected porous powder is cooled by the heat of vaporization of the liquefied gas. The cooled porous powder easily adsorbs water on the hair. As a result, the aerosol composition can reduce the drying time of wet hair.

<Aerosol products>
An aerosol product filled with the above aerosol composition will be described. The aerosol product of the present embodiment includes a container body filled with the aerosol composition, an aerosol valve attached to the container body, and an injection button having an injection nozzle formed with an injection hole for injecting the aerosol composition. Hereinafter, each configuration will be described. The composition of the aerosol product is not limited to this embodiment, and may be any structure as long as it can be filled with the aerosol composition and can be appropriately sprayed. Therefore, the configurations of the aerosol products shown below are examples, and the design can be changed as appropriate.

(Container body)
The container body is a pressure-resistant container for filling the aerosol composition under pressure. The container body may have a general-purpose shape. For example, the pressure resistant container is a bottomed cylinder with an opening at the top. The opening is a filling port for filling the undiluted solution. The container body becomes an aerosol container by attaching an aerosol valve, which will be described later, to the opening and closing it.

The material of the container body is not particularly limited. The container body may have a pressure resistance sufficient to fill the aerosol composition under pressure. Such materials are metals such as aluminum and tinplate, various synthetic resins, pressure-resistant glass and the like.

(Aerosol valve)
The aerosol valve has a mounting cup attached to the opening of the container body and a valve mechanism supported inside the center of the mounting cup. The valve mechanism has a bottomed cylindrical housing in which the outer peripheral portion of the opening is supported inside the center of the mounting cup. Inside the housing, a stem having a stem hole that communicates the inside and outside of the container body, a stem rubber attached around the stem hole, and a spring that urges the stem and the stem rubber upward are provided. The stem and the stem rubber are always urged upward by a spring, and the stem hole is sealed by the stem rubber. Then, an injection button is provided so as to be fitted to the stem.

The structure of the aerosol valve is not particularly limited. For example, the aerosol valve includes a housing having a liquid phase introduction hole for introducing the aerosol composition inside the container body into the housing, and even if it has a vapor tap hole in addition to the liquid phase introduction hole. good. The vapor tap hole is a hole for introducing the gas part of the liquefied gas in the gas phase part inside the container body into the housing, and reduces the liquid part of the liquefied gas introduced into the housing to reduce the particles of the jet. The diameter can be adjusted. Further, the vapor tap holes have an effect of shortening the flame length even when the aerosol composition to be filled contains a large amount of flammable components.

The method of filling the container body with the aerosol composition is not particularly limited. For example, for the aerosol composition, a method can be adopted in which the stock solution is filled from the opening of the container body, the opening is closed by the aerosol valve, and the liquefied gas is filled from the valve mechanism of the aerosol valve to uniformly dissolve the stock solution. Alternatively, the aerosol composition may be filled by undercup filling, which is filled with liquefied gas prior to fixing the aerosol valve.

By filling the aerosol composition, the internal pressure of the container body can be adjusted to about 0.2 to 0.6 MPa at 25 ° C.

(Injection button)
The injection button is a member for injecting an aerosol composition taken in through an aerosol valve, and has an injection nozzle in which an injection hole is formed. The injection button comprises an injection passage through which the aerosol composition passes. One end of the injection passage communicates with the passage in the stem, and the other end is formed with an injection hole for injecting the aerosol composition.

The cross-sectional area (diameter) of the injection hole is not particularly limited. The cross-sectional area of the injection hole is appropriately adjusted in order to obtain a desired injection state such as the spread and momentum of the injection object (spray). For example, if the object is hair, the jet distance can be about 5-20 cm. Therefore, the cross-sectional area of the injection hole can be adjusted to about 0.07 to 1.0 mm ² . In this case, the injection button may have a mechanical breakup mechanism.

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 undiluted solution 1 was prepared according to the following formulation, and the container body made of polyethylene terephthalate was filled with 70% by volume. Next, 30% by volume of liquefied gas 1 (trans-1,3,3,3-tetrafluoropropa-1-ene: HFO-1234ze) was filled, and an aerosol valve was attached to the mouth of the container body to seal it. An aerosol product filled with an aerosol composition for quick-drying hair was prepared by mixing a stock solution and a liquefied gas in a container.

<Undiluted solution 1>
Ethanol 85.4
Glycerin 5.0
Cyclopentasiloxane (* 1) 5.0
Trisiloxane (* 2) 2.0
Isopropyl myristate 2.0
Propylene glycol dicaprate (* 3) 0.5
Porous silica (* 4) 0.1
Total 100.0 (% by mass)
* 1: SH245 FLUID (trade name), manufactured by Toray Dow Corning Co., Ltd. * 2: SH200 FLUID 1cs (trade name), manufactured by Toray Dow Corning Co., Ltd. * 3: NIKKOL PDD (trade name), Nikko Chemicals ( Made by Co., Ltd. * 4: TMPS-4R (trade name), manufactured by Taiyo Kagaku Co., Ltd., specific surface area 920 (m ² / g)

(Example 2)
An aerosol composition was prepared by the same method as in Example 1 except that the undiluted solution 2 prepared according to the following formulation was used, and an aerosol product filled with the aerosol composition was prepared.

<Undiluted solution 2>
Ethanol 85.0
Glycerin 5.0
Cyclopentasiloxane (* 1) 5.0
Trisiloxane (* 2) 2.0
Isopropyl myristate 2.0
Propylene glycol dicaprate (* 3) 0.5
Porous silica (* 5) 0.5
Total 100.0 (% by mass)
* 5: Siricia 740 (trade name), manufactured by Fuji Silysia Chemical Ltd., specific surface area (700 m ² / g)

(Example 3)
An aerosol composition was prepared by the same method as in Example 1 except that the undiluted solution 3 prepared according to the following formulation was used, and an aerosol product filled with the aerosol composition was prepared.

<Undiluted solution 3>
Ethanol 84.5
Glycerin 5.0
Cyclopentasiloxane (* 1) 5.0
Trisiloxane (* 2) 2.0
Isopropyl myristate 2.0
Propylene glycol dicaprate (* 3) 0.5
Zeolite (* 6) 1.0
Total 100.0 (% by mass)
* 6: Asensa DS901 (trade name), manufactured by Honeywell, specific surface area (350 m ² / g)

(Example 4)
An aerosol composition was prepared by the same method as in Example 1 except that the container body was filled with the undiluted solution 1 to 50% by volume and the liquefied gas 1 was filled with 50% by volume, and the aerosol product filled with the aerosol product was prepared. Made.

(Example 5)
An aerosol composition was prepared by the same method as in Example 1 except that the container body was filled with the undiluted solution 3 in an amount of 40% by volume and the liquefied gas 1 was filled with 60% by volume. Made.

(Example 6)
An aerosol composition was prepared by the same method as in Example 1 except that liquefied gas 2 (liquefied petroleum gas (vapor pressure at 25 ° C. was 0.45 MPa)) was used, and an aerosol product filled with the aerosol composition was prepared. did.

(Example 7)
An aerosol composition was prepared by the same method as in Example 1 except that liquefied gas 3 (dimethyl ether) was used, and an aerosol product filled with the aerosol composition was prepared.

(Example 8)
Liquefied gas 4 (a mixture of trans-1,3,3,3-tetrafluoropropa-1-ene and liquefied petroleum gas (vapor pressure at 25 ° C. is 0.20 MPa) with a volume ratio of 50/50) is used. An aerosol composition was prepared by the same method as in Example 1 except for the above, and an aerosol product filled with the composition was prepared.

(Comparative Example 1)
A pump-type dispenser was filled with only the undiluted solution 1 without using liquefied gas to prepare an injection product.

(Comparative Example 2)
An aerosol composition was prepared by the same method as in Example 1 except that the undiluted solution 4 prepared according to the following formulation was used, and an aerosol product filled with the aerosol composition was prepared.

<Undiluted solution 4>
Ethanol 85.5
Glycerin 5.0
Cyclopentasiloxane (* 1) 5.0
Trisiloxane (* 2) 2.0
Isopropyl myristate 2.0
Propylene glycol dicaprate (* 3) 0.5
Total 100.0 (% by mass)

(Comparative Example 3)
An aerosol composition was prepared by the same method as in Example 1 except that the undiluted solution 5 prepared according to the following formulation was used, and an aerosol product filled with the aerosol composition was prepared.

<Undiluted solution 5>
Ethanol 85.0
Glycerin 5.0
Cyclopentasiloxane (* 1) 5.0
Trisiloxane (* 2) 2.0
Isopropyl myristate 2.0
Propylene glycol dicaprate (* 3) 0.5
Talc 0.5
Total 100.0 (% by mass)

With respect to the aerosol products and the like obtained in Examples 1 to 8 and Comparative Examples 1 to 3, the redispersibility of the powder in the undiluted solution and the quick-drying effect of the hair were evaluated by the following evaluation methods. The results are shown in Table 1.

<1. Redispersibility>
The redispersibility of the powder when the above product was allowed to stand in a constant temperature room at 25 ° C. for one week to settle the powder on the bottom of the container body and then shaken up and down was evaluated according to the following evaluation criteria. ..
(Evaluation criteria)
⊚: The powder was uniformly dispersed when shaken once or twice.
◯: The powder was uniformly dispersed when shaken 3 to 4 times.
Δ: The powder was uniformly dispersed when shaken 5 to 9 times.
X: The powder was not uniformly dispersed even after shaking 10 times or more.
-: Cannot be evaluated because it does not contain powder.

<2. Quick-drying effect of hair ＞
The hair bundle (length 30 cm) was washed, the whole was moistened with water, and then lightly wiped with a towel to remove some water. Next, using the above product soaked in a constant temperature water bath at 25 ° C. for 1 hour, the contents were sprayed onto the entire hair bundle (total spray amount: 0.5 g) and blended. The hair bundles were put together and dried in a constant temperature room at 25 ° C. while holding the upper end of the hair bundles and hanging them. The dry state of the hair bundle was evaluated at predetermined time intervals according to the following evaluation criteria.
(Evaluation criteria)
⊚: The whole hair bundle was dry and the whole was spread.
◯: The surface of the hair bundle was dry, and the hair on the surface was spread.
Δ: The surface of the hair bundle was slightly dry, and the hair on the surface began to spread.
X: The hair bundle was hardly dry and remained cohesive with water.

As shown in Table 1, the aerosol products of Examples 1 to 8 could be easily redispersed with a small number of shakes, and an excellent quick-drying effect on hair was obtained. On the other hand, the sprayed product of Comparative Example 1 which did not use liquefied gas required shaking 5 times or more for redispersion, and the quick-drying effect of the hair was inferior. The aerosol product of Comparative Example 2 which did not use powder was inferior in the quick-drying effect of hair. The aerosol product of Comparative Example 3 using a non-porous powder was inferior in the quick-drying effect of hair.

Claims (3)

It consists of a stock solution containing porous powder and alcohol, and a liquefied gas.
The liquefied gas contains a hydrofluoroolefin and contains
The content of the liquefied gas is 20 to 60% by volume in the aerosol composition.
The content of the hydrofluoroolefin is 15 to 60% by volume in the aerosol composition.
An aerosol composition for quick-drying hair having an alcohol content of 70% by mass or more in the undiluted solution . The aerosol composition for quick-drying hair according to claim 1 , wherein the porous powder has a specific surface area of 300 to 1500 (m ² / g). The aerosol composition for quick-drying hair according to claim 1 or 2 , wherein the porous powder is zeolite.