JP6001461B2 - Aerosol spray hair styling composition and aerosol spray hair styling agent - Google Patents

Description

  The present invention relates to an aerosol spray hairdressing composition used for an aerosol spray hairdressing agent. Moreover, this invention relates to the aerosol spray hairdressing agent with which the said aerosol spray hairdressing agent composition is filled in the aerosol spray container.

  An aerosol hairdressing agent in which an aerosol hairdressing composition is filled in an aerosol container is commercially available. As an aerosol hairdressing agent, there exist various forms, such as foam hairdressing agent apply | coated in foamy form, and the spray hairdressing agent sprayed. In general, the composition of the aerosol hairdressing composition differs depending on the form of the foam hairdressing agent and the spray hairdressing agent.

  Conventionally, in hairdressing agents, a solid oil or a film-forming polymer is often used as a hairdressing component. However, hair styling agents that use solid oil have a problem that they are easily sticky, and hair styling agents that use a film-forming polymer have too much hair styling power, making it difficult to do hair styling once after styling. There is a problem that it is inferior in styling.

  On the other hand, hair styling agents using powders such as silica as hair styling ingredients have been proposed. Patent Document 1 below discloses a hair styling composition comprising hydrophobic silica having an average particle size of 0.1 nm to 20 μm and a non-aqueous dispersion in which the hydrophobic silica is dispersed.

JP 2011-246352 A

  However, in the hairdressing agent described in Patent Document 1, the dispersibility of the hydrophobic silica in the non-aqueous dispersion is low, and the hydrophobic silica may precipitate in the non-aqueous dispersion. For this reason, when the hairdressing agent described in Patent Document 1 is used in the form of a spray hairdressing agent, the hairdressing force may vary, or the spray nozzle may be clogged, resulting in a decrease in ejection performance. Further, the hair styling agent described in Patent Document 1 has a problem that it is poorly washed off when washed after hair styling.

  The object of the present invention is to improve the discharge stability because of the excellent dispersibility of silica, to improve the re-styling property after hair styling, and to easily wash off after hair styling. It is to provide an agent composition and an aerosol spray hairdressing agent using the aerosol spray hairdressing composition.

  A limited object of the present invention is to provide an aerosol spray hair styling composition capable of suppressing stickiness after hair styling, and an aerosol spray hair styling using the aerosol spray hair styling composition.

  The present invention is an aerosol spray hairdressing composition used by being filled in an aerosol spray container and used to obtain an aerosol spray hairdressing agent, comprising hydrophilic silica, liquid isoparaffin, liquid paraffin, 2-ethyl Polyoxyethylene glyceryl ether in which at least one oil selected from the group consisting of cetyl hexanoate, isononyl isononanoate and isopropyl myristate, and the average added mole number of ethylene oxide is 8 to 30 (8 or more and 30 or less) Aerosol spray hairdressing composition comprising a fatty acid ester and ethanol, not containing water, or containing water, and the water content in 100% by weight of the aerosol spray hairdressing composition is 10% by weight or less. I will provide a.

  The content of the hydrophilic silica and the content of the polyoxyethylene glyceryl ether fatty acid ester are preferably 1: 1 to 1: 5 by mass ratio.

  The aerosol spray hairdressing composition according to the present invention does not contain a film-forming polymer or contains a film-forming polymer and the content of the film-forming polymer in 100% by weight of the aerosol spray hairdressing composition is 5% by mass or less. It is preferable that

  The oil absorption of the hydrophilic silica is preferably 100 to 1000 mL / 100 g (100 mL / 100 g or more and 1000 mL / 100 g or less).

  Further, the present invention is an aerosol spray hair styling agent to be applied by spraying, comprising an aerosol spray container, the aerosol spray hair styling composition described above, and a propellant, and the aerosol spray hair styling in the aerosol spray container. Provided is an aerosol spray hairdressing agent filled with an agent composition and the propellant.

  Since the aerosol spray hairdressing composition according to the present invention has the above-described constitutional characteristics, in the aerosol spray hairdressing composition using the aerosol spray hairdressing composition, the dispersibility of hydrophilic silica, re-hairdressing after hairdressing It has excellent properties and can be easily washed off after styling. Therefore, it can be suitably used as an aerosol spray hair styling agent by filling in an aerosol spray container.

FIG. 1 is a schematic perspective view for explaining a method of measuring the binding force in the evaluation of re-styling in Examples and Comparative Examples.

  Hereinafter, the present invention will be described in detail.

[Aerosol spray hair styling composition]
The aerosol spray hairdressing composition according to the present invention contains (A) hydrophilic silica, (B) oil, (C) polyoxyethylene glyceryl ether fatty acid ester, and (D) ethanol.

  In the aerosol spray hairdressing composition according to the present invention, the oil component (B) is at least one selected from the group consisting of liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate. .

  In the aerosol spray hairdressing composition according to the present invention, the average added mole number of ethylene oxide in (C) polyoxyethylene glyceryl ether fatty acid ester is 8 to 30 (8 or more and 30 or less).

  The aerosol spray hairdressing composition according to the present invention does not contain water, or contains water, and the content of water in 100% by mass of the aerosol spray hairdressing composition is 10% by mass or less.

  The aerosol spray hairdressing composition according to the present invention can be used as a stock solution in an aerosol spray hairdressing composition. The aerosol spray hairdressing composition according to the present invention is a composition excluding a propellant filled in an aerosol spray container.

  By adopting the above-described composition in the aerosol spray hairdressing composition according to the present invention, it becomes possible to fill the aerosol spray hairdressing composition according to the present invention in an aerosol spray container and use it suitably as an aerosol spray hairdressing composition. . That is, in the aerosol spray hairdressing agent using the aerosol spray hairdressing composition according to the present invention, (A) the dispersibility of the hydrophilic silica is improved, and (A) the aggregation of the hydrophilic silica is difficult to occur. For this reason, the discharge stability in an aerosol spray hairdressing agent can be improved.

  Furthermore, when hair is set using an aerosol spray hair styling agent using the aerosol spray hair styling composition according to the present invention, the surface of the hair is covered with a large number of (A) hydrophilic silica. As a result, an appropriate amount of hair is given to the hair, and the hairstyle can be well prepared. In addition, by adopting the above-described composition in the aerosol spray hairdressing composition according to the present invention, the re-styling property after hairdressing can be improved, and the hair can be easily washed out after hairdressing. Furthermore, in the aerosol spray hair styling using the aerosol spray hair styling composition according to the present invention, stickiness after hair styling can be suppressed.

  Hereinafter, each component used for the aerosol spray hairdressing composition according to the present invention will be specifically described.

((A) hydrophilic silica)
(A) Hydrophilic silica is a hair styling component. (A) As for hydrophilic silica, only 1 type may be used and 2 or more types may be used together.

  In the aerosol spray hairdressing composition according to the present invention, it is necessary to use (A) hydrophilic silica instead of hydrophobic silica.

  When hydrophobic silica is used, the dispersibility of the hydrophobic silica in the aerosol spray hairdressing composition deteriorates, and the hydrophobic silica precipitates and tends to aggregate. In particular, in a composition having a low water content and a higher ethanol content than water, the hydrophobic silica tends to settle and aggregate. For this reason, the ejection stability of the aerosol spray hairdressing agent deteriorates. In addition, the re-hair styling property and wash-off property are insufficient.

  On the other hand, by using (A) hydrophilic silica, (D) in a composition containing ethanol, (A) hydrophilic silica, (B) oil, and (C) polyoxyethylene glyceryl ether fatty acid ester By using together, the dispersibility of the hydrophilic silica (A) in the aerosol spray hairdressing composition increases, and the ejection stability of the aerosol spray hairdressing composition increases.

  In addition, general silica, for example, silica that has not been subjected to a hydrophobic treatment, is hydrophilic silica.

  (A) As a preferable commercial item of hydrophilic silica, for example, AEROSIL 50, 90, 130, 150, 200, 300, 380 (trade names, all manufactured by Nippon Aerosil Co., Ltd.); Sunsphere H-31, H-51 , H-121, H-201, H-32, H-52, H-122, H-33, H-53 (trade names, all manufactured by AGC S-Tech); SYLYSIA 300, 300P, 310, 310P, 320 , 330, 340, 350, 370, 380 (trade names, all manufactured by Fuji Silysia Chemical Ltd.). Commercial products other than these may be used.

  (A) The amount of oil absorption of hydrophilic silica is preferably 100 mL / 100 g or more, more preferably 150 mL / 100 g or more, still more preferably 200 mL / 100 g or more, preferably 1000 mL / 100 g or less, more preferably 800 mL / 100 g or less, further Preferably it is 700 mL / 100 g or less. (A) When the amount of hydrophilic silica absorbed is not less than the above lower limit and not more than the above upper limit, hair volume reduction and hair styling degradation due to oil on the hair such as scalp sebum can be suppressed. (Initial hair styling) and re-hair styling become even better.

  The oil absorption is measured according to the method described in JIS K5101.

  (A) The average particle diameter (average primary particle diameter) of the hydrophilic silica is preferably 0.1 nm or more, more preferably 5 nm or more, preferably 10 μm or less, more preferably 5 μm or less. (A) When the average particle size of the hydrophilic silica is not less than the above lower limit and not more than the above upper limit, the (A) hydrophilic silicas may be bonded to each other by intermolecular force or electrostatic adhesion acting between a plurality of (A) hydrophilic silicas during hair styling. Are more likely to be attracted to each other, and after hair styling, the surface of the hair is more satisfactorily covered with a large number of (A) hydrophilic silica, and the re-styling property is further enhanced.

  (A) The average particle diameter (average primary particle diameter) of hydrophilic silica is a volume average particle diameter. The average particle diameter can be measured using a particle size distribution measuring apparatus by laser light diffraction. Examples of the particle size distribution measuring apparatus include “LA-920” manufactured by HORIBA, Ltd.

  In 100% by mass of the aerosol spray hairdressing composition, the content of (A) hydrophilic silica is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, preferably 8% by mass or less, more preferably. Is 5% by mass or less, more preferably 2% by mass or less. (A) When the content of hydrophilic silica is not less than the above lower limit, the hair styling property and the re-styling property are further improved. When the content of (A) hydrophilic silica is not more than the above upper limit, the dispersibility of (A) hydrophilic silica is further improved.

((B) Oil)
(B) The oil component is at least one selected from the group consisting of liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate. (B) Only 1 type may be used for an oil component and 2 or more types may be used together.

  (B) The oil component is preferably non-volatile at 25 ° C. Moreover, it is preferable that (B) oil component is a liquid state at 25 degreeC. Liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate are generally non-volatile and liquid at 25 ° C.

  In the aerosol spray hairdressing composition, since the specific (B) oil component is used, (A) the hydrophilic silica can be accurately adhered onto the hair and an appropriate unit is formed. And the hair styling property is improved. In addition, the squeaky feeling of the hair after styling can be suppressed.

  (A) Content of hydrophilic silica and (B) Oil content (total content of liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate) is a mass ratio ( (A) content of hydrophilic silica: (B) content of oil), preferably 1: 3 to 1:25, more preferably 1: 5 to 1:20, still more preferably 1: 8 to 1: 15. When the content of (A) hydrophilic silica and (B) oil satisfies the above-described preferred relationship, the hair styling property and the re-styling property are further improved.

  In 100% by mass of the aerosol spray hairdressing composition, the content of (B) oil (total content of liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate) is preferably It is 3% by mass or more, more preferably 5% by mass or more, preferably 30% by mass or less, more preferably 25% by mass or less. (B) When the oil content is not less than the above lower limit and not more than the above upper limit, the hair styling property and the re-styling property are further improved.

  The oil component (B) may be at least one of liquid isoparaffin and liquid paraffin, and is at least one selected from the group consisting of cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate. There may be. The aerosol spray hairdressing composition may contain at least one of liquid isoparaffin and liquid paraffin, and at least one selected from the group consisting of cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate. It may contain seeds.

((C) Polyoxyethylene glyceryl ether fatty acid ester)
In the aerosol spray hairdressing composition, the average added mole number of ethylene oxide in (C) polyoxyethylene glyceryl ether fatty acid ester is 8 or more and 30 or less. As for (C) polyoxyethylene glyceryl ether fatty acid ester, only 1 type may be used and 2 or more types may be used together.

  In the aerosol spray hairdressing composition, (D) in a composition containing ethanol, (A) hydrophilic silica, (B) oil, and (C) polyoxyethylene glyceryl ether fatty acid ester are used in combination ( A) A hydrophilic silica, (B) an oil component, and (C) a polyoxyethylene glyceryl ether fatty acid ester form a complex, and (A) the slipping property of the hydrophilic silica is improved. For this reason, the dispersibility of the (A) hydrophilic silica in the aerosol spray hairdressing composition increases, and the ejection stability of the aerosol spray hairdressing composition increases. In addition, the combined use of (A) hydrophilic silica, (B) oil, and (C) polyoxyethylene glyceryl ether fatty acid ester increases the solubility in a large amount of water. It is possible to improve the drop.

  When the average number of added moles is less than 8, (A) the hydrophilic silica is not washed away. When the average number of added moles exceeds 30, (A) the dispersibility of the hydrophilic silica is deteriorated, and the washing-off is also deteriorated after hair styling. In addition, stickiness may occur after styling.

  From the viewpoint of further improving the dispersibility of (A) hydrophilic silica in the aerosol spray hairdressing composition and the washing-off after hairdressing, (C) average addition mole of ethylene oxide of polyoxyethylene glyceryl ether fatty acid ester The number is preferably 20 or less.

  (C) Although the fatty acid in polyoxyethylene glyceryl ether fatty acid ester is not specifically limited, A C16-C18 fatty acid is preferable. (C) As polyoxyethylene glyceryl ether fatty acid ester, polyoxyethylene glyceryl stearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl diisostearate, polyoxyethylene glyceryl triisostearate, polyoxyethylene glyceryl trioleate Etc.

  (C) Specific examples of polyoxyethylene glyceryl ether fatty acid ester include polyoxyethylene glyceryl stearate (10E.O.) (HLB11), polyoxyethylene glyceryl stearate (15E.O.) (HLB13), stearic acid Polyoxyethylene glyceryl (15E.O.) (HLB14), polyoxyethylene glyceryl isostearate (8E.O.) (HLB10), polyoxyethylene glyceryl isostearate (10E.O.) (HLB10), polyoxyisostearate Ethylene glyceryl (15E.O.) (HLB12), polyoxyethylene glyceryl isostearate (20E.O.) (HLB13), polyoxyethylene glyceryl diisostearate (20E.O.) (HLB10) , Polyisoethylene glyceryl diisostearate (30E.O.) (HLB12), polyoxyethylene glyceryl triisostearate (30E.O.) (HLB10), and polyoxyethylene glyceryl trioleate (30E.O.) (HLB10) ) And the like.

  (A) Content of hydrophilic silica and content of (C) polyoxyethylene glyceryl ether fatty acid ester are mass ratio (content of (A) hydrophilic silica: (C) polyoxyethylene glyceryl ether fatty acid ester. Content) is preferably 1: 0.5 to 1:10, more preferably 1: 1 to 1: 5, and still more preferably 1: 2 to 1: 3. (A) When the content of the hydrophilic silica is relatively increased, the hair styling property and the re-styling property are further improved. When the content of (C) polyoxyethylene glyceryl ether fatty acid ester is relatively increased, the dispersibility of (A) hydrophilic silica is further improved.

  In 100% by mass of the aerosol spray hairdressing composition, the content of (C) polyoxyethylene glyceryl ether fatty acid ester is preferably 0.2% by mass or more, more preferably 0.5% by mass or more, preferably 10% by mass. % Or less, more preferably 5% by mass or less. (C) When the content of the polyoxyethylene glyceryl ether fatty acid ester is not less than the above lower limit and not more than the above upper limit, the dispersibility of (A) hydrophilic silica and washing off after hair styling become even better.

((D) ethanol)
The aerosol spray hairdressing composition contains (D) ethanol. By using (D) ethanol instead of water, (D) ethanol volatilizes during hair styling, and (A) hair styling derived from hydrophilic silica is satisfactorily exhibited.

  (D) Even in a composition containing ethanol, (A) hydrophilic silica, (B) oil, and (C) polyoxyethylene glyceryl ether fatty acid ester are used in combination in an aerosol spray hairdressing composition. (A) The dispersibility of hydrophilic silica increases, and the ejection stability of the aerosol spray hairdressing agent increases.

  In 100% by mass of the aerosol spray hairdressing composition, the content of (D) ethanol is preferably 60% by mass or more, more preferably 70% by mass or more, preferably 98.65% by mass or less, more preferably 98.% by mass. 6% by mass or less, more preferably 98.5% by mass or less, further preferably 96.55% by mass or less, still more preferably 96.5% by mass or less, particularly preferably 96.4% by mass or less, most preferably It is 94 mass% or less. (D) When the content of ethanol is not less than the above lower limit, the dispersibility of (A) hydrophilic silica is further improved, and stickiness after styling is further suppressed. (D) When the content of ethanol is not more than the above upper limit, the hair styling property is further improved.

(water)
The aerosol spray hairdressing composition preferably contains substantially no water. However, the aerosol spray hairdressing composition may contain water as long as the effects of the present invention are not impaired. Moreover, even if it is a case where water is not mix | blended actively in an aerosol spray hairdressing composition, a small amount of water may be derived from a mixing | blending raw material.

  In the aerosol spray hairdressing composition, since it is used for spray coating, the lower the content of water with lower volatility, the better. Moreover, the smaller the content of water in the aerosol spray hairdressing composition, the better the re-styling properties.

  The smaller the content of water in the aerosol spray hairdressing composition, the better. The aerosol spray hairdressing composition does not contain water or contains water, and the content of water in 100% by mass of the aerosol spray hairdressing composition is 10% by mass or less. In 100% by mass of the aerosol spray hairdressing composition, the content of water is preferably 5% by mass or less, more preferably 1% by mass or less.

  The aerosol spray hairdressing composition is preferably substantially free of water, and is preferably a non-aqueous aerosol spray hairdressing composition. The aerosol spray hairdressing composition substantially free of water is a non-aqueous aerosol spray hairdressing composition. “Substantially free of water” means (A) hydrophilic silica, (B) oil, (C) polyoxyethylene glyceryl ether fatty acid ester, (D) ethanol, and as necessary. Aside from other ingredients (excluding water), it means that water is not included (does not add), and the aerosol spray hair conditioner composition contains water derived from the water contained in the ingredients. Means that it is not excluded.

(Other ingredients)
The aerosol spray hair styling composition is within a range not inhibiting the effects of the present invention, for example, a surfactant other than polyoxyethylene glyceryl ether fatty acid ester; polyvalent ethanol such as glycerin, 1,3-butylene glycol, and propylene glycol ; Thickeners such as carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, hydroxymethylcellulose, hydroxypropylmethylcellulose; lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol Higher alcohols having 12 to 18 carbon atoms such as: sugar alcohols such as sorbitol, maltitol, trehalose; silicone oils; fatty acid ester oils; Agents, antioxidants, plant extracts; dyes; pigments; pH adjusting agent; may contain a preservative or the like; perfumes.

  From the viewpoint of further improving the hair styling property, the aerosol spray hair styling composition preferably contains substantially no film-forming polymer. However, the aerosol spray hairdressing composition may contain a film-forming polymer as long as the effects of the present invention are not impaired. The film-forming polymer does not contain (A) hydrophilic silica. Only 1 type may be used for a film formation polymer, and 2 or more types may be used together.

  The aerosol spray hairdressing composition does not contain a film-forming polymer, or contains a film-forming polymer, and the content of the film-forming polymer in 100% by mass of the aerosol spray hairdressing composition is 5% by mass or less. Is preferred. When the content of the film-forming polymer exceeds 5% by mass, the re-styling property tends to decrease. In addition, the hair tends to be sticky after hair styling, and the wash-out after hair styling tends to be poor. In 100% by mass of the aerosol spray hairdressing composition, the content of the film-forming polymer is more preferably 3% by mass or less, and still more preferably 1% by mass or less.

  Examples of the film-forming polymer include an anionic film-forming polymer, a cationic film-forming polymer, an amphoteric film-forming polymer, and a nonionic film-forming polymer.

  Examples of the anionic film-forming polymer include (meth) acrylic acid alkyl copolymers, (meth) acrylic acid / (meth) acrylic acid alkyl copolymers, acrylic resin alkanolamines, methyl vinyl ether / maleic acid ester copolymers, Vinyl acetate / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, vinyl acetate / crotonic acid / vinyl propionate copolymer, vinyl acetate / maleic acid monobutyl ester / isoborolyl acrylate copolymer Polymer, acrylic acid / acrylic acid alkyl ester / alkyl acrylamide copolymer, polyvinylpyrrolidone / acrylate / (meth) acrylic acid copolymer, (styrene / alkyl acrylate) copolymer, (styrene / acrylic acid amide) copolymer Combined, urethane-acrylic both Coalescence and sodium polystyrene sulfonate. “(Meth) acryl” means both “acryl” and “methacryl”.

  Examples of the cationic film-forming polymer include vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose, vinylimidazo. Rium trichloride / vinylpyrrolidone copolymer, hydroxyethylcellulose / dimethyldiallylammonium chloride, polyvinylpyrrolidone / alkylaminoacrylate / vinylcaprolactam copolymer, methylvinylimidazolium / vinylpyrrolidone copolymer, and (vinylpyrrolidone / dimethylamino) Propylmethacrylamide / lauryldimethylaminopropylmethacrylamide) copolymer and the like.

  As the amphoteric film-forming polymer, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer, N, N dimethyl-N- (2-methacryloyloxyethyl) Amine = N-oxide / methacrylic acid alkyl ester copolymer, hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer, monochloroacetic acid amphoteric product of dialkylaminoethyl methacrylate / methacrylic acid alkyl ester copolymer , And (isobutylene / diethylaminopropylmaleimide / maleic acid) copolymers.

  The aerosol spray hairdressing composition according to the present invention can be produced by a known method for producing an aerosol spray hairdressing composition. The aerosol spray hairdressing composition according to the present invention is not particularly limited. For example, (A) hydrophilic silica, (B) oil, (C) polyoxyethylene glyceryl ether fatty acid ester, (D) ethanol, It can be produced by mixing with other components. As an example of a particularly preferable production method, for example, after (B) oil is mixed with (C) polyoxyethylene glyceryl ether fatty acid ester and (A) hydrophilic silica is added and uniformly dispersed, (D ) A production method in which ethanol is further mixed. In this production method, the addition timing of the other components is appropriately selected according to the type of the other components.

[Aerosol spray hair conditioner]
The aerosol spray hairdressing agent according to the present invention is an aerosol spray hairdressing agent that is applied by spraying. The aerosol spray hair styling agent is preferably an aerosol spray hair styling agent in which the aerosol spray hair styling composition is sprayed in the form of a mist.

  The aerosol spray hair styling agent includes an aerosol spray container, the aerosol spray hair styling composition described above, and a propellant. The aerosol spray container has a spray nozzle. In the aerosol spray hairdressing agent, the aerosol spray hairdressing composition and the propellant are filled in the aerosol spray container. The aerosol spray hair styling composition is a composition excluding the propellant in the aerosol spray hair styling agent, among the fillings filled in the aerosol spray container.

  Examples of the propellant include dimethyl ether, isobutane, liquefied petroleum gas, and nitrogen gas. As for the said propellant, only 1 type may be used and 2 or more types may be used together.

  From the viewpoint of further preventing clogging, the propellant preferably contains at least one of liquefied petroleum gas and dimethyl ether, and more preferably contains liquefied petroleum gas.

  The aerosol spray hair styling agent can be prepared by a known method. As an aerosol spray hair preparation method, the aerosol spray hair preparation composition or each compounding component contained in the aerosol spray hair preparation composition is filled in an aerosol spray container, and the aerosol spray container is clinched by an aerosol valve. After that, a method of filling the propellant from the stem and mounting an injection button suitable for the stem can be mentioned.

  In a total of 100% by mass of the aerosol spray hairdressing composition and the propellant, the content of the aerosol spray hairdressing composition is preferably 10% by mass or more, more preferably 20% by mass or more, and preferably 70% by mass or less. More preferably, it is 60 mass% or less, More preferably, it is 50 mass% or less. When the content of the aerosol spray hairdressing composition is not less than the above lower limit and not more than the above upper limit, the discharge property is further improved.

  In a total of 100% by mass of the aerosol spray hairdressing composition and the propellant, the content of the propellant is preferably 30% by mass or more, more preferably 40% by mass or more, still more preferably 50% by mass or more, preferably It is 90 mass% or less, More preferably, it is 80 mass% or less. When the content of the propellant is not less than the above lower limit and not more than the above upper limit, the discharge property is further improved.

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

  In the examples and comparative examples, the following components were used.

((A) hydrophilic silica)
Silicic anhydride 1 (hydrophilic silica, “AEROSIL 300” manufactured by Nippon Aerosil Co., Ltd., average particle size 7 nm, oil absorption 376 mL / 100 g)
Silicic anhydride 2 (hydrophilic silica, “AEROSIL 200” manufactured by Nippon Aerosil Co., Ltd., average particle size 12 nm, oil absorption 280 mL / 100 g)

(Other hair styling ingredients)
Silylated silica (hydrophobic silica, “AEROSIL RX300” manufactured by Nippon Aerosil Co., Ltd., average particle size 7 nm, oil absorption 350 mL / 100 g)
Acrylic resin alkanolamine (film forming polymer, “Plus Size L-9909B” manufactured by Kyoyo Chemical Industry Co., Ltd.)

((B) Oil)
Liquid isoparaffin (“Pearl Dream EX” manufactured by NOF Corporation)
Liquid paraffin (Sonneborn Inc. “CARNATION”)
Cetyl 2-ethylhexanoate ("CIO-N" manufactured by Nippon Surfactant)
Isononyl isononanoate (Nisshin Oilio “Isononyl isononanoate”)
Isopropyl myristate ("Exepal IPM" manufactured by Kao Corporation)

(Other oil)
2-decyltetradecanol (“Lisonol 24SP” manufactured by Higher Alcohol Industry Co., Ltd.)

((C) Polyoxyethylene glyceryl ether fatty acid ester)
Polyoxyethylene glyceryl isostearate (8E.O.) (“Brownon RGL-8MISE” manufactured by Aoki Yushi Kogyo Co., Ltd.)
Polyoxyethylene glyceryl isostearate (10E.O.) (“GWIS-110” manufactured by Nippon Emulsion Co., Ltd.)
Polyoxyethylene glyceryl isostearate (20E.O.) (“GWIS-120” manufactured by Nippon Emulsion Co., Ltd.)
Polyoxyethylene glyceryl trioleate (10E.O.) (“GWO-310” manufactured by Nippon Emulsion Co., Ltd.)

(Other nonionic surfactants)
Polyoxyethylene glyceryl tristearate (5EO) ("GWS-305" manufactured by Nippon Emulsion Co., Ltd.)
Polyoxyethylene glyceryl isostearate (60EO) ("GWIS-160" manufactured by Nippon Emulsion Co., Ltd.)
Polyoxyethylene alkyl (12-14) ether (3.E.O) (Nippon Shokubai "Softanol 30")
Polyoxyethylene cetyl ether (40EO) (“BC-40TX” manufactured by Nippon Surfactant)
Polyoxyethylene hydrogenated castor oil (20E.O.) (“EMALEX HC-20” manufactured by Nippon Emulsion Co., Ltd.)

((D) ethanol)
ethanol

(water)
purified water

(Examples 1-13 and Comparative Examples 1-12)
The blending components shown in the following Tables 1 and 2 were blended (the blending unit was mass%) to prepare an aerosol spray hair conditioner composition (stock solution) having the composition shown in Tables 1 and 2 below. The obtained aerosol spray hairdressing composition (stock solution) and the propellant shown in the following Tables 1 and 2 were blended at a mass ratio shown in the following Tables 1 and 2, and filled in an aerosol test bottle (transparent). .

(Test Example 1: Evaluation of non-stickiness)
A hair bundle (100% human hair, straight hair bundle, length: 10 cm, mass: 1.0 g, “BS-BA” manufactured by Beaulux) was prepared. Using Pipetman (Gilson's “P-1000”, volume range: 200-1000 μl), apply 400 μl of each stock solution (aerosol spray hair conditioner composition) to the above-mentioned hair bundle, and blend it with your fingers. It was. Thereafter, the sample was naturally dried for 3 minutes under the conditions of 20 ° C. and 50% RH to prepare a sample.

  Collect the above three samples (hair bundles coated with each stock solution), embed them in a case containing a large amount of foamed polystyrene beads (material: expanded polystyrene, diameter: 4 to 6 mm), and then pull it up to make foamed polystyrene beads. The number of adhesions was measured.

  From the number of the foamed polystyrene beads adhering to the sample, the non-stickiness was evaluated according to the following evaluation criteria.

<Evaluation criteria for non-stickiness>
○ (Good): The number of foamed polystyrene beads attached is 0 to 10 × (Bad): The number of foamed polystyrene beads attached is 11 or more

(Test Example 2: Re-hair styling evaluation)
<Sample preparation method>
A hair bundle (100% human hair, straight hair bundle, length: 10 cm, mass: 1.0 g, “BS-BA” manufactured by Beaulux) was prepared. Using Pipetman (Gilson's “P-1000”, volume range: 200-1000 μl), apply 400 μl of each stock solution (aerosol spray hair conditioner composition) to the above-mentioned hair bundle, and blend it with your fingers. It was. Thereafter, the sample was naturally dried for 1 hour under conditions of 20 ° C. and 50% RH to prepare a sample.

<Measurement method>
The above three samples (hair bundles coated with each stock solution) were collected, and a comb (tooth thickness: 1 mm, tooth spacing: 1 mm interval) was passed through the tip 3 cm of the sample hair bundle, and the stress (unit :) N) was measured using a rheometer (“CR-500DX-LII” manufactured by Sun Science Co., Ltd.), and the measured value was defined as “binding force (first time)”.

  Next, the sample once passed through the comb as described above is prepared with a finger, and the comb is passed again in the same manner as described above, and the stress (unit: N) at that time is measured using the rheometer. The measured value was defined as “binding force (second time)”.

  From the values of the above-mentioned “binding force (first time)” and “binding force (second time)”, the re-styling property was calculated according to the following calculation formula, and the re-styling property was evaluated according to the following evaluation criteria.

  Hair styling (%) = Bundling power (second time) / Bundling power (first time) × 100

<Evaluation criteria for re-styling>
○ (Good): Binding power (first time) is 1N or more, and re-styling property (%) is 75% or more △ (Inadequate): Binding power (first time) is 1 N or more, and re-hairing property (%) is 50% or more and less than 75% x (defect): binding power (first time) is less than 1N, or re-hair styling (%) is less than 50%

  The higher the binding force, the better the hair styling property. The re-styling property is preferably 75% or more, more preferably 85% or more. Further, when the binding force (first time) is less than 1N, the hair styling property itself is low, so that the hair styling property is also poor.

  In addition, the said binding force was specifically measured with the following measuring methods. A hair bundle stress measuring apparatus 10 schematically shown in FIG. 1 was used. The comb 12 was fixed to the table 11 side, the hair bundle 13 (sample) was attached to the adapter 14 (pressure-sensitive shaft), and the hair bundle 13 was passed through the comb 12. Thereafter, the stress (unit: N) when the hair bundle 13 was pulled upward (direction indicated by the arrow X) was measured. In the hair bundle (sample), the tip 3 cm of the hair bundle was uniformly passed through 10 comb teeth. The measurement conditions were as follows: tensile speed: 6 cm / min, tensile direction: extension, moving distance: 3 cm The measurement was performed at the 3 cm tip of the hair bundle of the sample, and the average value of the three measurement values repeatedly measured was used as the measurement result of the binding force.

(Test Example 3: Evaluation of good wash-off)
<Sample preparation method>
A hair bundle (100% human hair, straight hair bundle, length: 10 cm, mass: 1.0 g, “BS-BA” manufactured by Beaulux) was prepared. Using Pipetman (Gilson's “P-1000”, volume range: 200-1000 μl), apply 400 μl of each stock solution (aerosol spray hair conditioner composition) to the above-mentioned hair bundle, and blend it with your fingers. It was. Thereafter, it was naturally dried for 8 hours under the conditions of 20 ° C. and 50% RH.

  Next, the obtained hair bundle was put into a cleaning solution at 40 ° C. (0.2% aqueous solution of “Sinoline SP-1300” manufactured by Shin Nippon Chemical Co., Ltd.), and ultrasonically cleaned at 40 ° C. for 5 minutes, 20 ° C., 50 A sample was prepared by air drying for 24 hours under the condition of% RH.

<Measurement method>
The above three samples (hair bundles coated with each stock solution) were collected, and a comb (tooth thickness: 1 mm, tooth spacing: 1 mm interval) was passed through the tip 3 cm of the sample hair bundle, and the stress (unit :) N) was measured using a rheometer ("CR-500DX-LII" manufactured by Sun Science Co., Ltd.). The measured value was “frictional force” and the goodness of washing was evaluated according to the following evaluation criteria.

<Evaluation criteria for good wash-off>
○ (good): frictional force is less than 1N Δ (insufficient): frictional force is 1N or more and less than 2N × (defect): frictional force is 2N or more

  The lower the frictional force, the lower the persistence (stagnation and catching), that is, the better the washing-off. If the frictional force is less than 1N, which is equivalent to an uncoated hair bundle, it was determined that the wash-off was good.

  The measurement of the frictional force was performed in the same manner as the method for measuring the binding force in the evaluation of re-styling. The average value of the three measurement values repeatedly measured was taken as the measurement result of the friction force.

(Test Example 4: Evaluation of dispersibility)
The obtained undiluted solution (aerosol spray hairdressing composition) and propellant in a pressure-resistant bottle (Tokyo Aerosol “Aerosol Test Bottle”, volume: 100 ml) so that the total amount of undiluted solution and propellant is 30 g. Filled (mass ratio of stock solution and propellant is as shown in Table 1) and allowed to stand for 24 hours. Thereafter, the mixture was inverted and stirred, and the dispersibility was evaluated according to the following evaluation criteria by the number of times until complete dispersion. In addition, about Comparative Examples 3 and 5, since silica was not mix | blended with the undiluted | stock solution, evaluation was not performed.

<Evaluation criteria for dispersibility>
○ (Good): Disperse completely easily with 1 to 2 reversal stirring. Δ (Inadequate): Disperse completely with 3 to 5 reversal stirring. × (Poor): 6 or more reversal until complete dispersion. Stirring is required

  The results are shown in Tables 1 and 2 below.

(Test Example 5: Clogging test (discharge stability test))
The aerosol spray hairdressing composition (stock solution) obtained in Examples 1 and 2 was filled into an aerosol container (volume: 317 ml). Next, after the aerosol valve was clinched in the container, the propellant shown in Table 1 was filled from the stem, and a button suitable for the stem was attached to make an aerosol spray hairdressing agent. The stock solution and the propellant are filled to a total of 150 g, and the mass ratio of the stock solution and the propellant is as shown in Table 1. The button hole diameter was 0.51 mm, the stem hole diameter was 0.51 mm (the number of stem holes: 2), the housing hole diameter was a lower hole diameter of 1.58 mm, and the lateral hole diameter was 0.76 mm.

  About each Example, each 170 aerosol spray hairdressing agents were produced, and the clogging test (discharge stability test) was implemented. Specifically, the spray conditions of the aerosol spray hairdressing agent were evaluated under the following test conditions 1 to 7, respectively. All of the aerosol spray hairdressing agents prepared from the aerosol spray hairdressing composition obtained in Examples 1 and 2 were free from clogging and showed good ejection stability. The test conditions and results are shown in Table 3 below.

  (Condition 1) The procedure of spraying for 10 seconds in an upright state without shaking was repeated once a day until the stock solution ran out (number of tests: 30).

  (Condition 2) The procedure of spraying for 1 second in an upright state without shaking was repeated once a day and 50 times (number of tests: 30).

  (Condition 3) The procedure of spraying for 10 seconds in an upright state after shaking lightly three times was repeated once a day until the stock solution ran out (number of tests: 10).

  (Condition 4) The procedure of spraying for 1 second in an upright state after shaking lightly 3 times was repeated once and 50 times every day (number of tests: 10).

  (Condition 5) After standing still for 4 weeks, the whole amount was injected in an upright state without shaking until the stock solution disappeared (number of tests: 30).

  (Condition 6) After standing still for 8 weeks, the whole amount was injected in an upright state without shaking until the stock solution disappeared (number of tests: 30).

  (Condition 7) After standing still for 12 weeks, the whole amount was injected in an upright state without shaking until the stock solution disappeared (number of tests: 30).

  Storage and testing were performed at room temperature (25 ° C.). Also, stored in an upright state.

DESCRIPTION OF SYMBOLS 10 ... Stress measuring apparatus for hair bundles 11 ... Stand 12 ... Comb 13 ... Hair bundle (sample)
14 ... Adapter

Claims (5)

An aerosol spray hair styling composition used by filling an aerosol spray container and used to obtain an aerosol spray hair styling agent,
Hydrophilic silica,
At least one oil selected from the group consisting of liquid isoparaffin, liquid paraffin, cetyl 2-ethylhexanoate, isononyl isononanoate and isopropyl myristate;
The average number of moles of added ethylene oxide is 8 or more and 30 or less and a polyoxyethylene glyceryl ether fatty acid esters,
Including 60% by mass or more and 98.65% by mass or less of ethanol,
Contain no water, or contains less than 10 wt% water,
The content of the hydrophilic silica and the content of the oil component are 1: 3 to 1:25 by mass ratio,
An aerosol spray hairdressing composition in which the content of the hydrophilic silica and the content of the polyoxyethylene glyceryl ether fatty acid ester are from 1: 0.5 to 1:10 by mass ratio .   The aerosol spray hairdressing composition according to claim 1, wherein the content of the hydrophilic silica and the content of the polyoxyethylene glyceryl ether fatty acid ester are 1: 1 to 1: 5 by mass ratio. It contains no film-forming polymer, or comprises a skin film forming polymer with 5 wt% or less, according to claim 1 or aerosol spray hair fixative composition according to 2.   The aerosol spray hairdressing composition according to any one of claims 1 to 3, wherein the hydrophilic silica has an oil absorption of 100 mL / 100 g or more and 1000 mL / 100 g or less. An aerosol spray hair styling agent applied by spraying,
An aerosol spray container;
The aerosol spray hairdressing composition according to any one of claims 1 to 4,
With a propellant,
An aerosol spray hairdressing agent in which the aerosol spray hairdressing composition and the propellant are filled in the aerosol spray container.

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