CN114126569B

CN114126569B - Aerosol spray hair styling agent

Info

Publication number: CN114126569B
Application number: CN202080052425.0A
Authority: CN
Inventors: 清水亚纱子
Original assignee: Mandom Corp
Current assignee: Mandom Corp
Priority date: 2019-09-25
Filing date: 2020-09-02
Publication date: 2024-03-12
Anticipated expiration: 2040-09-02
Also published as: JPWO2021059908A1; CN114126569A; WO2021059908A1; JP7309300B2; KR20220024645A

Abstract

Provided is an aerosol spray hair styling agent which can easily perform hair styling, has excellent hair styling force and re-styling properties for curling hair, and has excellent ejection stability. The aerosol spray hair styling agent of the present invention comprises an aerosol spray container, a hair styling agent composition and a propellant containing liquefied petroleum gas, wherein the hair styling agent composition can be sprayed in a mist form, the hair styling agent composition contains component A, ethanol (component B) and water (component C), the hair styling agent composition contains no film-forming polymer or less than 0.1 mass% of film-forming polymer, no thickener or less than 0.1 mass% of thickener, the component A contains polyoxyethylene hydrogenated castor oil (component A1) and at least component A1 in polyoxyethylene alkyl ether (component A2), the content of component A1 is 50.0 mass% or more in 100 mass% of component A, and the content of component A, component B and component C is 10.0 to 48.0 mass%, 30.0 to 85.0 mass% and 5.0 to 25.0 mass% in 100 mass% of the hair styling agent composition.

Description

Aerosol spray hair styling agent

Technical Field

The present invention relates to aerosol spray hair styling agents having a hair styling agent composition filled in an aerosol spray container.

Background

The pasty hair styling agent composition such as hair cream and hair oil has excellent hair styling properties in terms of hair styling force for curling hair, hair styling force for setting hair up, hair styling holding power, and re-styling property, and also has a property of imparting luster to hair. However, pasty hair styling compositions have a solid or pasty character, and have no fluidity at all or only a small amount of fluidity. Thus, the pasty hair styling agent composition is usually filled in a can or the like. When in use, the pasty hair styling agent composition filled in the tank container or the like is taken out from the container with a finger or the like, and applied to hair or the like to perform hair styling (for example, refer to patent documents 1 and 2).

On the other hand, as a hair styling agent excellent in application to hair and usability, an aerosol hair styling agent is known in which an aerosol container is filled with an aerosol hair styling agent composition. Examples of the aerosol hairspray include aerosol hairspray which is sprayed in a mist form from an aerosol container, and aerosol foam hairspray which is sprayed in a bubble form from an aerosol container. The hair styling agent composition for aerosol hair styling must have fluidity so as to be able to be ejected well from the aerosol container. Therefore, conventional pasty hair styling agent compositions cannot be used as the hair styling agent composition for aerosol hair styling agents.

In addition, as shown in patent document 3 below, an aerosol foam conditioner having a hair oil (Pomade) effect is also known. The aerosol foam hair styling agent described in patent document 3 comprises (a) a single-phase composition containing one or more (a 1) anionic surfactants having one carboxylate group and one or more (a 2) nonionic emulsifiers, and (B) a device for foaming the composition (a).

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 9-110649

Patent document 2: japanese patent laid-open No. 2000-34212

Patent document 3: japanese patent laid-open No. 2000-26255

Disclosure of Invention

Problems to be solved by the invention

The purpose of the present invention is to provide an aerosol spray hair styling agent which can easily perform hair styling, has excellent hair styling force and re-styling properties for curling hair, and has excellent ejection stability.

Means for solving the problems

Although pasty hair styling compositions such as hair cream and hair oil are excellent in hair styling force and re-styling property for curling hair, the hair styling compositions need to be taken out onto the palm and spread on the palm during hair styling, and the palm needs to be cleaned after hair styling. Thus, the ease of use of the pasty hair styling agent composition is poor.

In addition, even in the aerosol foam hair styling agent having a hair oil effect as described in patent document 3, the hair styling agent composition needs to be taken on the palm at the time of hair styling, and the palm needs to be cleaned after hair styling, so that the simplicity is poor.

On the other hand, the aerosol spray hair styling agent may be directly applied to the hair without picking up the hair styling agent composition on the palm during styling, and further, by using a comb after application, styling can be performed without attaching the hair styling agent composition to the palm or the like. Therefore, the aerosol spray hair styling agent can easily perform hair styling. In the hair styling agent composition described in patent document 3, the hair styling agent composition cannot be sprayed in a mist form from an aerosol container, and cannot be used as an aerosol spray hair styling agent.

The present inventors have conducted intensive studies on an aerosol spray hair styling agent which has hair styling properties of a pasty hair styling agent composition excellent in hair styling force and re-styling property and which can be sprayed in a mist form. As a result, the inventors of the present invention have found that the above problems can be solved if the following aerosol spray conditioner is used.

The present invention provides an aerosol spray hair conditioner comprising an aerosol spray container, a hair conditioner composition and a propellant, wherein the aerosol spray container is filled with the hair conditioner composition and the propellant, the hair conditioner composition is capable of being sprayed out of the aerosol spray container in a mist form, the hair conditioner composition comprises the following component (A), the following component (B) and the following component (C), the hair conditioner composition does not comprise a film forming polymer or comprises less than 0.1 mass% of a film forming polymer, the hair conditioner composition does not comprise a thickener or comprises less than 0.1 mass% of a thickener, the content of the following component (A1) is more than 50.0 mass%, the content of the component (A) is more than 10.0 mass% and less than 48.0 mass%, the content of the component (B) is more than 30.0 mass% and less than 85.0 mass% of C, and the content of the component (B) is more than 25.0 mass% of a liquefied gas, among 100 mass% of the component (A).

Component (A): the following component (A1), or the following component (A1) and the following component (A2)

Component (A1): polyoxyethylene hydrogenated castor oil

Component (A2): polyoxyethylene alkyl ether

Component (B): ethanol

Component (C): water and its preparation method

In the aerosol spray hair styling agent of the present invention, the content of the hair styling agent composition is preferably 20.0% by mass or more and 70.0% by mass or less, based on 100% by mass of the total of the hair styling agent composition and the propellant.

In the aerosol spray hair conditioner of the present invention, the liquefied petroleum gas is preferably contained in an amount of 50.0 mass% or more based on 100 mass% of the propellant.

Preferably, in the aerosol spray conditioner of the present invention, the component (A1) comprises the following component (a 11) and the following component (a 12).

Component (a 11): polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 5 to 40 inclusive

Component (a 12): polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 50 to 80 inclusive

Preferably, in the aerosol spray hair styling agent of the present invention, after the hair styling agent composition and the propellant are mixed in an aerosol spray container to form an emulsified state, the time required for the emulsified state to disintegrate and the liquid phase to phase separate is 15 minutes or less when the hair styling agent composition is left to stand at 25 ℃.

Effects of the invention

The aerosol spray hair styling agent of the present invention can easily perform hair styling, and is excellent in hair curling hair styling power and re-styling performance, and also excellent in ejection stability.

Detailed Description

The present invention will be described in detail below.

The aerosol spray hair styling agent of the present invention comprises an aerosol spray container, a hair styling agent composition and a propellant. In the aerosol spray hair conditioner of the present invention, the aerosol spray container is filled with the hair conditioner composition and the propellant. The hair styling composition can be sprayed in a mist form from the aerosol spray container.

The aerosol spray hair styling agent of the present invention can spray a hair styling agent composition in a mist form from an aerosol spray container. Therefore, the hair styling composition can be directly applied to hair, and further, by using a comb after application, hair styling can be performed without attaching the hair styling composition to the palm or the like. By using the comb for hair styling, hand washing is not required after hair styling, and hair styling can be easily performed even at an outgoing destination.

In the present invention, the hair styling agent composition in the form of a paste having excellent hair styling ability and re-styling ability can exhibit hair styling properties by aerosol spraying. In addition, the aerosol spray hair styling agent of the present invention is excellent in hair styling force to raise hair.

In addition, in general, aerosol spray containers have smaller apertures of the discharge ports than aerosol foam containers and the like, and thus the hair styling composition tends to clog. However, the hair styling agent composition of the aerosol spray hair styling agent of the present invention is less likely to be clogged and has excellent ejection stability.

[ Hair styling agent composition (Aerosol spray hair styling agent composition) ]

The hair styling composition described above contains "polyoxyethylene hydrogenated castor oil, or polyoxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether", "ethanol" and "water".

In the present specification, the above-mentioned "polyoxyethylene hydrogenated castor oil, or polyoxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether" may be referred to as "component (a)".

In the present specification, the above-mentioned "polyoxyethylene hydrogenated castor oil" is sometimes referred to as "component (A1)".

In the present specification, the "polyoxyethylene alkyl ether" may be referred to as "component (A2)".

That is, the hair styling composition contains the component (A1), or both the component (A1) and the component (A2) as the component (a).

In the present specification, the above-mentioned "ethanol" may be referred to as "component (B)".

In the present specification, the "water" may be referred to as "component (C)".

The hair styling composition contains at least component (A), component (B) and component (C). The hair styling composition may contain other components than the components (a) to (C). The above-mentioned components, for example, component (a), component (B), component (C) and other components may be used alone or in combination of two or more.

(component (A))

The component (A) is polyoxyethylene hydrogenated castor oil (component (A1)), or component (A1) and polyoxyethylene alkyl ether (component (A2)). That is, the component (a) is the component (A1) or a mixture of the component (A1) and the component (A2). Component (A) is a nonionic surfactant. The hair styling composition may contain only the component (A1), or may contain both the component (A1) and the component (A2) as the component (a). The hair styling composition may not contain the component (A2).

< component (A1) >

Component (A1) is polyoxyethylene hydrogenated castor oil. Component (A1) is a nonionic surfactant. By using the component (A1), appropriate adhesion can be provided between hairs, and appropriate hardness can be provided to the hair after hair styling. Therefore, the hair styling force and the re-styling performance for curling hair can be improved, and the hair styling force for setting up hair can also be improved. Further, by using the component (A1), gloss can be imparted to hair. The component (A1) may be used alone or in combination of two or more.

The average molar number of addition of Ethylene Oxide (EO) in component (A1) (average molar number of addition of EO in a polyoxyethylene moiety) is not particularly limited, but is preferably 5 or more, more preferably 20 to 120, from the viewpoint of exhibiting good hair styling ability. The component (A1) having a small average molar number of addition of EO has a high effect of imparting gloss to hair and a high effect of imparting adhesion to hair, and as the average molar number of addition of EO increases, the effect of imparting hardness to hair after hair styling increases. There is a tendency that the hair setting force for curling hair increases when the adhesion force between the hairs increases, and the hair setting force for setting up hair increases when the hardness is given to the hair. Therefore, in the present invention, the component (A1) having an appropriate average addition mole number of EO may be selected according to the hair styling characteristics required for the hair styling composition.

From the viewpoint of favorably imparting gloss to hair and favorably imparting moderate adhesion to hair, the component (A1) preferably contains polyoxyethylene hydrogenated castor oil having an average molar number of addition of Ethylene Oxide (EO) of 5 to 40. In the present specification, the above-mentioned "polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 5 or more and 40 or less" may be referred to as "component (a 11)". The average addition mole number of EO of component (a 11) is preferably 20 or more from the viewpoint of imparting gloss to hair more favorably and imparting moderate adhesion to hair more favorably.

From the viewpoint of satisfactorily imparting a proper adhesion between hairs and satisfactory hardness to hair after hair styling, the component (A1) preferably contains polyoxyethylene hydrogenated castor oil having an average molar number of addition of ethylene oxide of 50 to 80. In the present specification, the above-mentioned "polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 50 to 80 inclusive" may be referred to as "component (a 12)". The average addition mole number of EO of component (a 12) is preferably 60 or less from the viewpoint of better application of moderate adhesion force between hairs and better application of moderate hardness to hair after hair styling.

From the viewpoint of satisfactorily imparting a proper hardness to hair after hair styling, the component (A1) preferably contains polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 100 or more. In the present specification, the above-mentioned "polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 100 or more" may be referred to as "component (a 13)". The average addition mole number of EO of the component (a 13) is preferably 120 or less from the viewpoint of imparting moderate hardness to hair after hair styling more favorably.

The component (A1) preferably contains at least the component (a 12), more preferably contains the component (a 11) and the component (a 12), and particularly preferably contains the component (a 11), the component (a 12) and the component (a 13). In this case, since a proper adhesion force can be more favorably provided between the hairs and a proper hardness can be provided to the hair after the hair is finished, the hair setting force for curling the hair, the hair setting force for setting the hair, and the re-setting property can be further improved. In addition, the luster can be imparted to the hair more favorably.

The content of the component (A1) is 50.0 mass% or more based on 100 mass% of the component (a). If the content of the component (A1) in 100 mass% of the component (a) is less than 50.0 mass%, it is difficult to sufficiently improve the hair styling force for curling hair, the hair styling force for setting hair up, and the re-styling property.

From the viewpoint of further improving the hair styling power for curling hair, the hair styling power for setting hair up, and the re-styling property, the content of the component (A1) is preferably 55.0 mass% or more, more preferably 60.0 mass% or more, still more preferably 90.0 mass% or less, and still more preferably 80.0 mass% or less, of the component (a) 100 mass%. The content of the component (A1) may be 100 mass% (total amount) in 100 mass% of the component (a).

The content of the component (a 11) is preferably 5.0 mass% or more, more preferably 10.0 mass% or more, still more preferably 40.0 mass% or less, and still more preferably 35.0 mass% or less in 100 mass% of the component (A1) from the viewpoint of favorably imparting gloss to hair and favorably imparting moderate adhesion to hair.

The content of the component (a 12) is preferably 20.0 mass% or more, more preferably 30.0 mass% or more, still more preferably 40.0 mass% or more, preferably 90.0 mass% or less, more preferably 70.0 mass% or less, of the component (A1) in 100 mass% from the viewpoint of favorably imparting moderate adhesion between hairs and favorably imparting moderate hardness to hair after hair styling. The content of the component (a 12) may be 100 mass% in 100 mass% of the component (A1). That is, the component (A1) may contain only the component (a 12).

From the viewpoint of favorably imparting moderate hardness to hair after hair styling, the content of the component (a 13) is preferably 10.0 mass% or more, more preferably 15.0 mass% or more, preferably 40.0 mass% or less, more preferably 35.0 mass% or less, in 100 mass% of the component (A1).

< component (A2) >

Component (A2) is polyoxyethylene alkyl ether. Component (A2) is a nonionic surfactant. By using the component (A2), appropriate hardness can be favorably imparted to the hair after styling. The component (A2) may be used alone or in combination of two or more.

The component (A2) preferably has hexadecyl or octadecyl groups, from the viewpoint of imparting moderate hardness to hair after hair styling. That is, the component (A2) is preferably polyoxyethylene cetyl ether and/or polyoxyethylene stearyl ether.

The average molar number of addition of Ethylene Oxide (EO) of component (A2) (average molar number of addition of EO of polyoxyethylene moiety) is preferably 10 or more, more preferably 15 or more, preferably 50 or less, more preferably 40 or less, from the viewpoint of favorably imparting moderate hardness to hair after hair styling.

The content of the component (A2) in 100 mass% of the component (a) is less than 50.0 mass%. The content of the component (A2) in 100 mass% of the component (a) is preferably 10.0 mass% or more, more preferably 15.0 mass% or more, preferably 40.0 mass% or less, more preferably 35.0 mass% or less. The content of the component (A2) may be 0 mass% (not contained) in 100 mass% of the component (a).

The content of the component (a) in 100 mass% of the hair styling composition is 10.0 mass% or more and 48.0 mass% or less. When the content of the component (a) in 100 mass% of the hair styling agent composition is less than 10.0 mass%, it is difficult to sufficiently improve the hair styling power for curling hair, the hair styling power for setting hair up, and the re-styling performance. If the content of the component (a) in 100 mass% of the hair styling composition exceeds 48.0 mass%, the viscosity of the hair styling composition may be increased and the composition may not be sprayed in a mist form. In addition, the emulsifying force may be increased and the emulsion may be ejected in a bubble shape. Further, the hair after styling sometimes becomes tacky.

The content of the component (a) in 100 mass% of the hair styling composition is preferably 15.0 mass% or more, more preferably 20.0 mass% or more, preferably 45.0 mass% or less, more preferably 40.0 mass% or less. When the content of the component (a) is not less than the lower limit, the hair styling force for curling hair, the hair styling force for setting hair up, and the re-styling performance can be further improved. In addition, the luster can be imparted to the hair more favorably. When the content of the component (a) is not more than the upper limit, precipitation of the component (a) can be effectively suppressed, and ejection stability can be further improved. In the case where the hair styling composition does not contain the component (A2), the content of the component (a) is the content of the component (A1). When the hair styling composition contains the component (A2), the content of the component (a) is the total content of the component (A1) and the component (A2).

(component (B))

The component (B) is ethanol. By using the component (B), the hair styling composition has a low viscosity and can be discharged from an aerosol. In addition, the foam-removing effect of the component (B) prevents the discharged hair styling agent composition from foaming, and allows the composition to be discharged as a mist.

The content of the component (B) in 100 mass% of the hair styling composition is 30.0 mass% or more and 85.0 mass% or less. The content of the component (B) in 100 mass% of the hair styling composition is preferably 35.0 mass% or more, more preferably 40.0 mass% or more, preferably 80.0 mass% or less, more preferably 75.0 mass% or less. When the content of the component (B) is not less than the lower limit, the hair styling composition can be favorably sprayed in a mist form. When the content of the component (B) is not more than the upper limit, the hair styling force by the component (a) can be further effectively exerted.

(component (C))

Component (C) is water. By using the component (C), the hair styling force generated by the component (a) can be effectively exerted. It is difficult to improve the hair styling power without using the component (C). Component (C) is preferably purified water.

The content of the component (C) in 100% by mass of the hair styling composition is 5.0% by mass or more and 25.0% by mass or less. When the content of the component (C) in 100 mass% of the hair styling agent composition is less than 5.0 mass%, it is difficult to sufficiently improve the hair styling power for curling hair, the hair styling power for setting hair up, and the re-styling performance. If the content of component (C) in 100 mass% of the hair styling composition exceeds 25.0 mass%, the hair styling composition cannot be sprayed in a mist form from the aerosol spray container and is easily sprayed in a foam form (foam form).

The content of the component (C) in 100% by mass of the hair styling composition is preferably 10.0% by mass or more, and more preferably 20.0% by mass or less. When the content of the component (C) is not less than the lower limit, the hair styling force for curling hair, the hair styling force for setting hair up, and the re-styling performance can be further improved. When the content of the component (C) is not more than the upper limit, the hair styling agent composition can be favorably discharged as a mist from the aerosol spray container.

The mass ratio of the content of the component (B) to the content of the component (a) (content of the component (B)/content of the component (a)) is preferably 0.8 or more, more preferably 0.9 or more, preferably 6.0 or less, and more preferably 5.0 or less. When the mass ratio (content of component (B)/content of component (a)) is equal to or greater than the lower limit, ejection stability can be further improved. When the mass ratio (content of component (B)/content of component (a)) is equal to or less than the upper limit, the hair styling force by component (a) can be further effectively exerted.

The mass ratio of the content of the component (C) to the content of the component (a) (content of the component (C)/content of the component (a)) is preferably 0.1 or more, more preferably 0.15 or more, preferably 0.4 or less, and more preferably 0.35 or less. When the mass ratio (content of component (C)/content of component (a)) is not less than the lower limit and not more than the upper limit, the hair styling force by component (a) can be more effectively exerted, and the ejection stability can be further improved.

(other Components)

The hair styling composition may contain components other than the components (a) to (C). The components other than the components (a) to (C) are not particularly limited, and examples thereof include oily components, polyols, coolants, pH adjusters, preservatives, antioxidants, metal chelators, vitamins, animal and plant extracts, pearling agents, colorants, fragrances, and the like. The other components may be used alone or in combination of two or more.

< film Forming Polymer >

From the viewpoint of stably spraying the hair styling composition in a mist form, the hair styling composition does not contain a film-forming polymer, or contains 0.1 mass% or less of a film-forming polymer. When the hair styling composition contains the film-forming polymer, the content of the film-forming polymer is 0.1 mass% or less, preferably 0.08 mass% or less, more preferably 0.05 mass% or less, and most preferably 0 mass% (excluding the film-forming polymer) in 100 mass% of the hair styling composition. Thus, the hair styling composition most preferably does not contain the film forming polymer. When the content of the film-forming polymer exceeds 0.1 mass%, the film-forming polymer is likely to precipitate in the hair styling composition, and the ejection stability is lowered. If the film-forming polymer exceeds 0.1 mass%, the re-hairability is reduced.

The component (a) is not contained in the film-forming polymer. Examples of the film-forming polymer include anionic film-forming polymers, cationic film-forming polymers, amphoteric film-forming polymers, and nonionic film-forming polymers.

Examples of the anionic film-forming polymer include alkyl (meth) acrylate copolymers, (meth) acrylic acid/(meth) acrylic acid alkyl ester copolymers, acrylic resin alkanolamine, methyl vinyl ether/maleate copolymers, vinyl acetate/crotonic acid/vinyl propionate copolymers, vinyl acetate/monobutyl maleate/isobornyl acrylate copolymers, acrylic acid/alkyl acrylate/alkyl acrylamide copolymers, polyvinylpyrrolidone/acrylic acid ester/(meth) acrylic acid copolymers, (styrene/alkyl acrylate) copolymers, (styrene/acrylamide) copolymers, urethane-acrylic acid copolymers, and sodium polystyrene sulfonate. The "(meth) acrylic acid" means both "acrylic acid" and "methacrylic acid".

Examples of the cationic film-forming polymer include vinylpyrrolidone/N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, O- [ 2-hydroxy-3- (trimethylammonio) propyl ] hydroxyethylcellulose chloride/vinylpyrrolidone copolymer, hydroxyethylcellulose/dimethyldiallylammonium chloride, polyvinylpyrrolidone/alkylaminoacrylate/vinylcaprolactam copolymer, methyl vinylimidazolium chloride/vinylpyrrolidone copolymer, and (vinylpyrrolidone/dimethylaminopropyl methacrylamide/dodecyldimethylaminopropyl methacrylamide) copolymer.

Examples of the amphoteric film-forming polymer include N-methacryloxyethyl N, N-dimethylammonium- α -N-methylcarboxybetaine/alkyl methacrylate copolymer, N-dimethyl-N- (2-methacryloxyethyl) amine=n-oxide/alkyl methacrylate copolymer, hydroxypropyl acrylate/butylaminoethyl methacrylate/octylamide acrylate copolymer, monoacetoacetic acid amphiphile of dialkylaminoethyl methacrylate/alkyl methacrylate copolymer, and (isobutylene/diethylaminopropyl maleimide/maleic acid) copolymer.

Examples of the nonionic film-forming polymer include polyvinyl alcohol, polyvinyl pyrrolidone, a vinyl pyrrolidone/vinyl acetate copolymer, a vinyl methyl ether/ethyl maleate copolymer, and polyvinyl caprolactam.

< thickener >

From the standpoint of exhibiting the hair styling power generated by the component (a) and stably spraying the hair styling composition in the form of a mist, the hair styling composition contains no thickener or 0.1 mass% or less of thickener. When the hair styling composition contains the thickener, the content of the thickener is 0.1 mass% or less, preferably 0.08 mass% or less, more preferably 0.05 mass% or less, and most preferably 0 mass% (excluding the thickener) in 100 mass% of the hair styling composition. Thus, the hair styling composition most preferably does not contain the thickener. Since the content of the component (C) contained in the hair styling composition is not large, if the content of the thickener exceeds 0.1 mass%, the component (a) and the thickener are likely to precipitate in the hair styling composition, and the ejection stability may be lowered. In addition, the hair styling force may be reduced.

The component (a) is not contained in the thickener. Examples of the thickener include acrylic thickeners such as carboxyvinyl polymers, alkyl-modified carboxyvinyl polymers, alkyl acrylate copolymers, (acrylic acid ester/stearyl methacrylate-polyether-20) crosslinked polymers, (acrylic acid ester/behenyl methacrylate-25) copolymers, and (acrylic acid ester/vinyl neodecanoate) crosslinked polymers; cellulose-based thickeners such as methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, and hydroxypropyl methyl cellulose; natural rubber-based thickeners such as xanthan gum, gelatin, guar gum, carrageenan, pectin, locust bean gum, and the like.

< surfactant other than component (A) >)

From the viewpoint of exhibiting the hair styling power of the component (a), the content of the surfactant other than the component (a) in the 100% by mass of the hair styling agent composition is preferably 1.0% by mass or less, more preferably 0.1% by mass or less, and most preferably 0% by mass (excluding the surfactant). Therefore, the hair styling composition most preferably does not contain a surfactant other than the component (a). If the content of the surfactant other than the component (a) exceeds 1.0 mass%, the hair styling ability exerted by the component (a) may be lowered.

Examples of the surfactant other than the component (a) include cationic surfactants, anionic surfactants, amphoteric surfactants, nonionic surfactants different from the component (a), and the like.

Examples of the cationic surfactant include monoalkyl-type quaternary ammonium salts, dialkyl-type quaternary ammonium salts, trialkyl-type quaternary ammonium salts, monoalkyl ether-type quaternary ammonium salts, alkylamines, and fatty acid amides.

Examples of the anionic surfactant include alkyl sulfate salts such as sodium lauryl sulfate, triethanolamine lauryl sulfate, sodium myristyl sulfate, sodium stearyl sulfate, sodium oleyl sulfate, and sodium cetyl sulfate; polyoxyethylene alkyl ether sulfates such as sodium polyoxyethylene lauryl ether sulfate and sodium polyoxyethylene myristyl ether sulfate; alpha-olefin sulfonates such as sodium tetradecene sulfonate; n-acyl methyl taurates such as sodium myristoyl methyl taurate, sodium palmitoyl methyl taurate, sodium stearyl methyl taurate, sodium oleoyl methyl taurate, and sodium cocoyl fatty acid methyl taurate; alkyl sulfosuccinates such as dioctyl sodium sulfosuccinate and disodium lauryl sulfosuccinate; polyoxyethylene alkyl sulfosuccinate salts such as disodium polyoxyethylene lauryl sulfosuccinate; monoalkyl phosphate salts such as sodium lauryl phosphate, sodium cetyl phosphate and diethanolamine cetyl phosphate; polyoxyethylene alkyl ether phosphate salts such as sodium polyoxyethylene lauryl ether phosphate, sodium polyoxyethylene cetyl ether phosphate, sodium polyoxyethylene oleyl ether phosphate, sodium polyoxyethylene alkylphenyl ether phosphate, and triethanolamine polyoxyethylene alkylphenyl ether phosphate; n-acyl sarcosinates such as potassium lauroyl sarcosinate, triethanolamine lauroyl sarcosinate, sodium myristoyl sarcosinate and sodium cocoate fatty acid sarcosinate; N-acyl-N-methyl-beta-alanine salts such as sodium lauroyl methylalanine, sodium lauroyl methylalanine triethanolamine, sodium myristoyl methylalanine, and sodium cocoyl fatty acid methylalanine; n-acyl glutamate such as sodium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium stearoyl glutamate, disodium stearoyl glutamate, sodium cocoyl fatty acid acyl glutamate, triethanolamine cocoyl fatty acid acyl glutamate, etc.; n-acyl glycinates such as potassium cocoyl fatty acid acyl glycinate and sodium cocoyl fatty acid acyl glycinate; sodium lauryl glycol acetate (sodium dodecane-1, 2-diol acetate), potassium lauryl glycol acetate, sodium myristyl glycol acetate, potassium myristyl glycol acetate, sodium palmityl glycol acetate, potassium palmityl glycol acetate, sodium stearyl glycol acetate, potassium stearyl glycol acetate, sodium behenyl glycol acetate, potassium behenyl glycol acetate, and other alkyl ether glycol acetates.

The amphoteric surfactant includes alkylamide betaines such as laurate amidopropyl betaine and coconut oil fatty acid amidopropyl betaine; glycine type amphoteric surfactants such as alkyl glycinate, carboxymethyl glycinate and N-acylaminoethyl-N-2-hydroxyethyl glycinate; aminopropionic acid type amphoteric surfactants such as alkyl aminopropionate and alkyl iminodipropionate; aminoacetic acid betaine type amphoteric surfactants such as alkyl dimethylaminoacetic acid betaine, alkylamidopropyldimethylaminoacetic acid betaine and alkyl dihydroxyethylaminoacetic acid betaine; sulfobetaine type amphoteric surfactants such as alkyl hydroxysulfobetaine; imidazoline type amphoteric surfactants such as alkyl carboxymethyl hydroxyethyl imidazoline betaine; N-alkyl-N, N-dimethylammonium-N-propyl sulfonate; N-alkyl-N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonate; n-fatty acid amidopropyl-N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonate, and the like.

Examples of the nonionic surfactant different from the component (a) include polyoxyethylene fatty acid esters, glycerin fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, sucrose fatty acid esters, polyoxyethylene alkylphenyl ethers, polyglycerin alkyl ethers, and fatty acid alkanolamides.

< oily component >

The hair styling composition may contain an oily component (at least one oily component) selected from the group consisting of hydrocarbon oils, ester oils, vegetable oils, silicone oils, higher alcohols, higher fatty acids, and fats and oils. In this case, gloss can be imparted to hair well. The oily component is preferably an oily component (at least one oily component) selected from the group consisting of hydrocarbon oil, ester oil, vegetable oil, and silicone oil.

Examples of the hydrocarbon oil include an α -olefin oligomer, vaseline, isoparaffin, light liquid isoparaffin, squalane, synthetic squalane, plant squalane, liquid isoparaffin, liquid paraffin, hydrogenated polyisobutene, hydrogenated (tetradecene/methylpentadecene), and isododecane.

Examples of the ester oil include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, 2-ethylhexyl palmitate, octyl lauryl myristate, isopropyl isostearate, propylene glycol isostearate, cetyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, glyceryl tri (caprylate/caprate), isononyl isononanoate, diisopropyl adipate, pentaerythritol tetraoctanoate, pentaerythritol tetraisostearate, diisostearyl malate, erythritol triethylhexanoate, 2-ethylhexyl hydroxystearate, dipentaerythritol hexa (hydroxystearate/stearate/abietic acid), dipentaerythritol tetrakis (hydroxystearate/isostearate), dipentaerythritol hexahydroxystearate, (ethylhexanoate/stearic acid/adipic acid), glyceryl tri (caprylate/capric acid/myristic acid/stearic acid) and dipentaerythritol hexa (behenate/benzoic acid/ethylhexanoate).

Examples of the vegetable oil include macadamia nut oil, eucalyptus oil, coconut oil, avocado oil, safflower oil, olive oil, palm kernel oil, macadamia nut oil, shea butter (shea butter), cocoa butter, almond oil, sunflower seed oil, rose-hip oil, olive squalane, camellia oil, kiwi seed oil, camellia oil, almond oil, sesame oil, soybean oil, jojoba oil, castor oil, hazelnut oil, meadow seed oil, peppermint oil, mousse nut oil, carrot oil, lavender oil, sucrose squalane, damascene rose wax, senna rose wax, jasmine flower wax (i.e., hydrogenated castor oil, hydrogenated jojoba oil, hydrogenated palm oil, hydrogenated avocado oil, hydrogenated soybean oil, and the like).

Examples of the silicone oil include dimethyl silicone oil such as methyl polysiloxane and high-polymer methyl polysiloxane; methyl phenyl silicone oils such as methyl phenyl polysiloxane; cyclic silicone oils such as methyl cyclic polysiloxane, octamethyl cyclic tetrasiloxane, decamethyl cyclic pentasiloxane, and dodecamethyl cyclic hexasiloxane; amino-modified silicones such as amino propyl methyl silicone/dimethyl silicone copolymer, amino ethyl amino propyl methyl silicone/dimethyl silicone copolymer, carboxyl-modified silicones, fatty acid-modified silicones, alcohol-modified silicones, aliphatic alcohol-modified silicones, epoxy-modified silicones, fluorine-modified silicones, alkyl-modified silicones, and the like; methyl hydrogen polysiloxane, polydimethyl siloxane alcohol, and the like.

Examples of the higher alcohol include aliphatic alcohols having 12 to 22 carbon atoms such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, cetostearyl alcohol, and oleyl alcohol.

Examples of the higher fatty acid include fatty acids having 12 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and behenic acid.

The content of the oily component in 100% by mass of the hair styling composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, preferably 5.0% by mass or less, more preferably 4.0% by mass or less. When the content of the oily component is not less than the lower limit, the hair can be favorably given gloss. When the content of the oil component is equal to or less than the upper limit, ejection stability can be improved.

< polyol >

The hair styling composition described above may comprise a polyol. Examples of the polyhydric alcohol include glycerin, diglycerin, 1, 3-butanediol, propylene glycol, dipropylene glycol, 1, 2-butanediol, 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-octanediol, 1, 2-decanediol, polyethylene glycol, and polyoxypropylene methyl glucoside. When the hair styling composition contains the above polyol, the hair can be favorably given gloss.

The content of the polyol in 100% by mass of the hair styling composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, preferably 20.0% by mass or less, more preferably 18.0% by mass or less. When the content of the polyhydric alcohol is not less than the lower limit and not more than the upper limit, gloss can be imparted to hair satisfactorily.

< Cooling agent >

Examples of the cooling agent include l-menthol, 1, 8-eucalyptol, and camphor.

< preservative >

Examples of the preservative include methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parahydroxybenzoate, isopropyl parahydroxybenzoate, butyl parahydroxybenzoate, isobutyl parahydroxybenzoate, and phenoxyethanol

The hair styling composition can be produced by a known method for producing a conventional aerosol spray hair styling composition. The hair styling composition is not particularly limited, and can be produced, for example, by mixing component (a), component (B), component (C), and other components blended as necessary.

[ propellant ]

The propellant comprises Liquefied Petroleum Gas (LPG). The propellant may contain a propellant other than the liquefied petroleum gas. Examples of the propellant other than the liquefied petroleum gas include dimethyl ether (DME), isobutane, nitrogen, and the like. The above-mentioned propellants may be used alone or in combination of two or more.

The propellant is preferably the liquefied petroleum gas or a mixture of the liquefied petroleum gas and dimethyl ether, and most preferably the liquefied petroleum gas.

The liquefied petroleum gas content is preferably 50.0 mass% or more, more preferably 60.0 mass% or more, still more preferably 80.0 mass% or more, particularly preferably 90.0 mass% or more, and most preferably 100 mass% (total amount) in 100 mass% of the propellant from the viewpoint of further suppressing precipitation of the component (a) and improving ejection stability.

[ Aerosol spray hair conditioner ]

The aerosol spray hair styling agent of the present invention comprises an aerosol spray container, the hair styling agent composition, and the propellant. The aerosol spray container has a push button actuator. In the aerosol spray hair styling agent, the aerosol spray container is filled with the hair styling agent composition and the propellant. The hair styling agent composition is a complex other than the propellant in a filler filled in the aerosol spray container in the aerosol spray hair styling agent.

The aerosol spray hair conditioner of the present invention is an aerosol spray hair conditioner to be spray-coated. In the aerosol spray hair styling agent of the present invention, the hair styling agent composition is sprayed in a mist form from the inside of an aerosol spray container. In the aerosol spray hair styling agent of the present invention, the hair styling agent composition is sprayed in a mist form from the aerosol spray container.

The aerosol spray conditioner can be prepared by a known method. The aerosol spray conditioner may be produced by the following method: the hair styling agent composition or each component contained in the hair styling agent composition is filled into an aerosol spray container, the aerosol spray container is compressed by an aerosol valve, then a propellant is filled through a valve stem, and a spray button suitable for the valve stem is assembled.

The content of the hair styling agent composition is preferably 20.0% by mass or more, more preferably 30.0% by mass or more, preferably 80.0% by mass or less, more preferably 70.0% by mass or less, based on 100% by mass of the total of the hair styling agent composition and the propellant. When the content of the hair styling agent composition is not less than the lower limit and not more than the upper limit, the sprayability is further improved.

The content of the propellant is preferably 20.0 mass% or more, more preferably 30.0 mass% or more, still more preferably 80.0 mass% or less, and still more preferably 70.0 mass% or less, based on 100 mass% of the total of the hair styling composition and the propellant. When the content of the propellant is not less than the lower limit and not more than the upper limit, the ejectability is further improved.

The time required for the emulsion to disintegrate and the liquid phase to separate is preferably 15 minutes or less, more preferably 10 minutes or less, even more preferably 8 minutes or less when the hair styling agent composition is mixed with the propellant in an aerosol spray container to form an emulsion and then allowed to stand at 25 ℃.

The time until the liquid phase is phase-separated is the time until the liquid phase in an emulsified state obtained by mixing the hair styling agent composition with the propellant is phase-separated into two layers. The time until the liquid phase was separated from the phase was measured visually. The measurement can be performed by filling a transparent pressure-resistant container with the hair styling agent composition and the propellant. The mixing ratio of the hair styling agent composition and the propellant used in this measurement is the mixing ratio in the aerosol hair styling agent.

The correlation between the configuration of the present invention and the effects of the present invention will be described in further detail below. However, the following mechanism is presumed, and the present invention is not limited to this mechanism.

The first feature of the present invention is to use a composition containing the component (a), the component (B) and the component (C) in specific blending amounts as a hair styling agent composition in an aerosol spray hair styling agent.

By combining the component (a) and the component (C), after the hair styling composition is applied to hair, hair styling characteristics (curling force, re-styling force, setting force) such as hair oil are exhibited. It is assumed that this is because the component (a) and the component (C) form a higher order structure. On the other hand, the hair styling agent composition containing the component (a) and the component (B) and containing no component (C) does not exhibit the hair styling characteristics.

The hair styling composition can be sprayed in a mist form by dissolving or dispersing the component (a) and the component (C) in the component (B) as a solvent. Since the component (a) and the component (C) have a higher order structure as described above, when not containing a certain amount or more of the component (B) as a solvent, the hair styling agent composition gels and the fluidity is lowered, and the hair styling agent composition cannot be sprayed as a mist.

The second feature of the present invention is that a propellant containing Liquefied Petroleum Gas (LPG) is used as the propellant in the aerosol spray hair conditioner. Thus, even when the aerosol spray conditioner is stored at a low temperature, the precipitation of the component (a) can be suppressed, clogging due to the precipitate can be prevented, and the ejection stability of the aerosol spray conditioner can be improved. It is assumed that this is because the use of the propellant containing Liquefied Petroleum Gas (LPG) suppresses precipitation of the component (a) at low temperature because the liquid phase exists in a state of phase separation into the phase of the hair styling agent composition and the phase of the propellant in the aerosol spray container. In particular, when the liquefied petroleum gas content is 50.0 mass% or more in 100 mass% of the propellant, the above-mentioned phase separation state is further maintained, and precipitation of the component (a) at low temperature is further suppressed. In contrast, when a propellant containing a large amount of dimethyl ether (DME) without liquefied petroleum gas is used, the hair conditioner composition and the propellant are in a compatible state in the liquid phase. In this case, dimethyl ether interacts with the component (C), and the interaction force between the component (a) and the component (C) decreases. Since the component (a) can be stably present in the hair styling composition by the interaction of the component (C), if the interaction force between the component (a) and the component (C) is reduced, the compatibility of the component (a) in the hair styling composition is reduced, and the component (a) is likely to precipitate at low temperature. Therefore, when a propellant containing a large amount of dimethyl ether (DME) without containing liquefied petroleum gas is used, the stability of the aerosol spray conditioner in discharge cannot be improved.

The third feature of the present invention is that the amount of the component (a), the component (B) and the component (C) to be blended is in a specific range, so that the hair styling agent composition can be sprayed in a mist form from the aerosol spray container. When the component (a) is caused to function as an emulsifier, the propellant and the hair styling agent composition form an O/W emulsion when the aerosol spray container is oscillated, and the emulsion state is changed from the phase separation state to the emulsified state, and thus the aerosol can be discharged. Further, the component (a) suppresses the emulsification to some extent, and the component (B) exerts the defoaming effect, so that the O/W emulsion formed is unstable and disintegrates when ejected from the aerosol spray container. As a result, the hair styling composition is sprayed in a mist form. In the case where the formed O/W emulsion is stable, the O/W emulsion is also maintained after ejection, and thus the hair styling composition becomes foam-like by volatilization of the propellant. In the present invention, since the hair styling agent composition is sprayed in a mist form, the hair styling agent composition can be uniformly applied to hair at a high concentration, and the hair styling force due to the component (a) can be sufficiently exerted. In addition, the hair can be finished by the comb, and the hair can be finished simply without dirtying hands.

The fourth feature of the present invention is that the hair styling composition contains no film forming polymer and thickener, or only a very small amount, respectively. Therefore, even in the aerosol spray container in which the mechanism of the actuator is complicated, clogging is less likely to occur, and ejection stability is excellent, as compared with the aerosol foam container. When the hair styling composition contains a thickener to some extent, the thickener interacts with the component (C), and the interaction force between the component (a) and the component (C) is reduced, whereby the hair styling force is reduced or the component (a) is easily deposited. The hair styling composition can improve hair styling power and ejection stability by containing no thickener or only a very small amount.

Examples

Hereinafter, the present invention will be specifically described with reference to examples and comparative examples. The present invention is not limited to the following examples.

The main components used in the examples and comparative examples are as follows.

(component (A))

Component (A1):

polyoxyethylene hydrogenated castor oil (20 e.o.): "NIKKKOL HCO-20" manufactured by Japanese surfactant industry Co., ltd. The average addition mole number of ethylene oxide was 20

Polyoxyethylene hydrogenated castor oil (40 e.o.): "NIKKKOL HCO-40" manufactured by Japanese surfactant industry Co., ltd. The average addition mole number of ethylene oxide was 40

Polyoxyethylene hydrogenated castor oil (50 e.o.): "NIKKKOL HCO-50" manufactured by Japanese surfactant industry Co., ltd. The average addition mole number of ethylene oxide was 50

Polyoxyethylene hydrogenated castor oil (60 e.o.): "NIKKKOL HCO-60" manufactured by Japanese surfactant industry Co., ltd. Having an average addition mole number of ethylene oxide of 60

Polyoxyethylene hydrogenated castor oil (100 e.o.): "NIKKKOL HCO-100" manufactured by Japanese surfactant industry Co., ltd. The average addition mole number of ethylene oxide is 100

Component (A2):

polyoxyethylene cetyl ether (20 e.o.): "BLASON CH-320L" manufactured by Qinghai Oletum Acciai, average addition mole number of ethylene oxide was 20

Polyoxyethylene cetyl ether (40 e.o.): "BLASON CH-340L" manufactured by Qinghai-Timber oil industry Co., ltd. With an average addition mole number of ethylene oxide of 40

Examples 1 to 24 and comparative examples 1 to 12

Hair styling compositions (stock solutions) having compositions shown in tables 1 to 5 below were prepared by blending the components shown in tables 1 to 5 below (blending units are mass%). The resulting hair styling composition (stock) was filled into an aerosol spray container (capacity 95 mL). Next, after the aerosol valve was pressed against the aerosol spray container, the aerosol spray device was prepared by filling the aerosol valve stem with the propellants shown in tables 1 to 5 below, and assembling a button suitable for the valve stem. The button hole diameter was 0.45mm, the stem hole diameter was 0.4mm (stem hole number: 1), the lower hole diameter was 0.65mm, and the lateral hole diameter was 0.42mm. The blending amount (blending amount in 100% by mass of the hair styling composition) in the table is expressed as the blending amount (unit: mass%) of the pure components.

(evaluation)

The aerosol spray conditioner thus obtained was evaluated as follows. The evaluation results are shown in tables 1 to 5. The evaluation was performed by three professional reviewers, and negotiation was performed to determine the evaluation result.

Test example 1-1: ejectability

In the obtained aerosol spray hair conditioner, hair of a wig (model of curriculum: manufactured by YUKARI JAPAN company) having short hair was uniformly sprayed with the aerosol spray hair conditioner from a position 15cm away for 3 seconds. The state of the spray was observed, and the ejection property was evaluated according to the following criteria.

< evaluation criterion of ejection Property >

O: the hair styling agent composition is sprayed from the aerosol spray container in the form of mist

X: the hair styling agent composition is not sprayed from the aerosol spray container in the form of mist

Test example 1-2 Hair styling force for curling hair

The hairpiece of test example 1-1, on which the hairpiece was sprayed with the aerosol spray setting agent, was set by combing the hair from the front to the rear using a comb so as to follow the shape of the hairpiece. Immediately after hair styling, the hair styling state of the lateral head was observed, and the hair styling force to curl the hair was evaluated according to the following criteria.

< evaluation criterion of hair styling force for curling Hair >

O (good): the hair is firmly curled from front to back

Delta (usable): the hair sags slightly downward and curls slightly less, but is practically acceptable

X (bad): the hair sags downward and the curl is insufficient.

Test example 1-3 Hair styling force to raise Hair

The hairpiece after the aerosol spray hair styling agent was sprayed in test example 1-1, on the opposite side of the hairpiece from the side on which the hair styling agent was applied in test example 1-2, was set by setting the hair up by hand from the root of the hair. Immediately after hair styling, the angle of hair erection near the top of the head was observed, and the hair styling force to raise the hair was evaluated according to the following criteria. As the angle, the horizontal direction was set to 0 ° and the vertical direction was set to 90 °.

< evaluation criterion of hair styling force to raise Hair >

O (good): raising hair (angle above 45 DEG)

Delta (usable): the hair is not so erected (angle of 20 DEG or more and less than 45 DEG)

X (bad): the hair is hardly raised (angle less than 20 DEG)

Test examples 1 to 4 usability

The usability was evaluated based on the following criteria, based on the operability at the time of hair styling in test examples 1 to 2 and test examples 1 to 3.

< evaluation criterion of usability >

O (good): the hair styling agent composition is uniformly adhered to hair and has good handling properties during hair styling

X (bad): the hair styling composition does not adhere uniformly to hair, gives a feeling of snagging during styling, and gives poor handling during styling

Test examples 1 to 5 gloss

After evaluation of test examples 1-2, the hair of the hairpiece after hair styling was visually observed. Further, as a comparative reference, 0.5g of the following exemplary formulation of the pasty hair styling agent composition was applied to either side of the wig, and hair styling was performed in the same manner as in test examples 1 to 2, so that the hair of the wig after hair styling was visually observed. The gloss of hair was evaluated according to the following criteria.

< exemplary formulation: pasty hair styling agent composition

Cetyl polyether-40: 25 mass%

Water: 75 mass%

< evaluation criterion of gloss >

O (excellent): the gloss is significantly stronger than the comparative standard

O (good): equivalent to the comparison standard or slightly stronger than the comparison standard

X (bad): inferior gloss compared to the comparative standard

Test examples 1-6-refinish Property

In test examples 1 to 3, after 1 hour from the completion of hair styling, the hair style after hair styling was broken, and the hair was again lifted up from the root of the hair by hand to perform re-styling. Immediately after the re-styling, the angle of erection of the hair near the top of the head was observed, and the re-styling performance was evaluated according to the following criteria. As the angle, the horizontal direction was set to 0 ° and the vertical direction was set to 90 °.

< evaluation criterion for restitution >

O (good): raising hair (angle above 45 DEG)

X (bad): the hair is hardly raised (angle less than 20 DEG)

Test example 2-1 ejection stability (clogging test)

Three aerosol spray hair styling agents were prepared and the following operations were performed.

< storage Process >

The aerosol spray hair conditioner was stored at-3deg.C for 48 hours.

< repeated spraying Process >

After the above-mentioned storage step, the procedure of "spraying the aerosol hair conditioner in an environment of 25 ℃ with gentle shaking 3 times and spraying for 10 seconds in an upright state" was repeated 1 time per day. The above steps were repeated until the hair styling composition (stock solution) was used up.

The ejection state in the repeated ejection step was observed, and ejection stability was evaluated according to the following criteria.

< evaluation criterion for ejection stability (clogging test) >)

O (good): all three of them do not cause any ejection failure in the middle of the process, and the hair styling agent composition can be ejected in a mist form (that is, no ejection failure occurs during the period from the repetition of the ejection process until the hair styling agent composition is used up)

X (bad): at least one of the three was clogged in the middle of the period, and it was confirmed that the ejection failure was caused (that is, the ejection failure was caused until the hair styling agent composition was used up in the repetition of the ejection step)

( Test example 2-2: ejection stability (presence or absence of precipitate and insoluble matter) )

Hair styling compositions (stock solutions) having compositions shown in tables 1 to 5 below were prepared by blending the components shown in tables 1 to 5 below (blending units are mass%). The resulting hair styling composition (stock solution) was filled into a transparent pressure-resistant bottle (aerosol test bottle, capacity 100 mL). Next, after the valve for bottle was pressed against the transparent pressure-resistant bottle, the valve stem was filled with the propellants shown in tables 1 to 5 below, to prepare samples for evaluation. Three samples for evaluation were prepared.

After the sample for evaluation was allowed to stand at-3℃for 48 hours, the presence or absence of precipitate and insoluble matter was confirmed.

< evaluation criterion for ejection stability (whether precipitate exists or not) and insoluble matter >

O (good): no precipitate and insoluble matter were confirmed in all three

X (bad): in at least one of the three, a precipitate or insoluble matter was confirmed

Test example 3 phase separation

An evaluation sample was prepared in the same manner as in test example 2-2. The hair styling composition was mixed with the propellant in a transparent pressure-resistant bottle of the sample for evaluation to prepare an emulsified state, and then allowed to stand at 25 ℃. The time until the emulsion disintegrated and the liquid phase separated was measured visually.

< evaluation criterion for phase separation >

O: after the O/W emulsion is formed, the time until the phase separation is less than 10 minutes

X 1: after the O/W emulsion is formed, the time until the phase separation exceeds 10 minutes

X 2: uniformly dissolve

X 3: not emulsified and kept in a phase separated state.

The compositions and results are shown in tables 1 to 5 below.

/>

The formulation examples of the aerosol spray hair conditioner of the present invention are shown below.

(formulation example 1)

(Hair styling agent composition)

/>

Hair styling compositions: propellant = 60:40 (mass ratio)

(formulation example 2)

(Hair styling agent composition)

Hair styling compositions: propellant = 50:50 (mass ratio)

Claims

1. An aerosol spray hair styling agent comprising an aerosol spray container, a hair styling agent composition and a propellant,

the aerosol spray container is filled with the hair styling composition and the propellant,

the hair styling composition is capable of being sprayed from the aerosol spray container in a mist form,

the hair styling composition comprises the following component A, the following component B and the following component C,

the hair styling composition contains no film-forming polymer or not more than 0.1% by mass of film-forming polymer,

the hair styling composition contains no thickener or 0.1% by mass or less of thickener,

In the component A100 mass%, the content of the following component A1 is 50.0 mass% to 90.0 mass%,

in the hair styling agent composition, the content of the component A is 10.0 to 48.0 mass%, the content of the component B is 30.0 to 85.0 mass%, the content of the component C is 5.0 to 25.0 mass%,

the propellant comprises a liquefied petroleum gas,

the component A is a component A1 and a component A2,

the component A1 is polyoxyethylene hydrogenated castor oil,

the component A2 is polyoxyethylene alkyl ether,

the component B is ethanol, the ethanol is used as the component B,

the component C is water, and the water is water,

the component A1 comprises the following component A11 and the following component A12,

component A11 is polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 5 to 40,

component A12 is polyoxyethylene hydrogenated castor oil having an average molar number of ethylene oxide added of 50 to 80,

the average molar number of addition of the ethylene oxide of the component A2 is 10 to 50.

2. The aerosol spray hair styling agent according to claim 1, wherein the content of the hair styling agent composition is 20.0 mass% or more and 70.0 mass% or less in 100 mass% of the total of the hair styling agent composition and the propellant.

3. The aerosol spray hair conditioner according to claim 1 or 2, wherein the liquefied petroleum gas content is 50.0 mass% or more in 100 mass% of the propellant.

4. The aerosol spray hair conditioner according to claim 1 or 2, wherein, in an aerosol spray container, after the hair conditioner composition is mixed with the propellant to prepare an emulsified state, a time period from when the emulsified state is left to stand at 25 ℃ until the emulsified state disintegrates and the liquid phase is phase-separated is 15 minutes or less.