Aerosol hair cosmetics

Abstract

To provide aerosol hair cosmetics that can significantly reduce frizz and waviness in hair effectively and quickly, without imposing an excessive burden on a user.SOLUTION: Aerosol hair cosmetics contain a stock solution (X) and a propellant (Y) containing carbon dioxide. The stock solution (X) contains the following components (a) to (c): (a) 1 mass% or more of an aromatic sulfonic acid or a salt thereof; (b) a polyol with a molecular weight of 70 or more and 150 or less; and (c) a nonionic surfactant with a C8-14 alkyl group or fatty acid residue. The aerosol hair cosmetics have a pH of 2.5 or more to 5 or less in a 5% water solution.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an aerosol type hair cosmetic composition. [Background technology]

[0002] Stimuli such as ultraviolet rays and heat from hair dryers not only damage hair, but also cause frizzy and wavy hair. In addition, hair may become distorted or shrink or lose its ability to retain moisture due to aging, which can also cause frizzy and wavy hair. There is a strong demand for hair cosmetics that can reduce frizzy and wavy hair and achieve straight, shiny, manageable, youthful hair, and various developments have been made so far.

[0003] For example, Patent Document 1 discloses a composition containing an aromatic sulfonic acid compound such as sulfanilic acid having an amino group or the like or a salt thereof, which is intended to correct or straighten keratin fibers such as hair, thereby making the keratin fibers easier to manage and smooth. Patent Document 2 discloses an aerosol-type hair cosmetic composition containing a surfactant, various organic acids such as aromatic sulfonic acids or their salts, and a propellant containing carbon dioxide, and having a specific pH range, which aims to efficiently penetrate the organic acid as an active ingredient for hair modification into the inside of the hair. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-73443 A [Patent Document 2] Patent Publication No. 2021-187835 Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of hair cosmetics that are used repeatedly on a daily basis, it is desirable that the effect of the cosmetic composition can be felt quickly without placing an excessive burden on the user in order to reduce frizz and wavy hair. However, even with the techniques described in any of the above patent documents, it still takes a certain amount of time to obtain a sufficient effect, and in fact it is necessary to leave the cosmetic composition on the hair for 10 minutes or more after application, so there is still room for improvement.

[0006] Therefore, the present invention relates to an aerosol type hair cosmetic composition that can effectively and quickly sufficiently reduce curls and waves in hair without imposing an excessive burden on the user. [Means for solving the problem]

[0007] Therefore, the present inventors conducted extensive research and discovered an aerosol-type hair cosmetic composition that is capable of effectively and quickly reducing frizz and waviness in hair by combining a specific amount of an aromatic sulfonic acid or its salt with a specific polyol and a nonionic surfactant and containing a concentrate having a pH in a specific range and a propellant containing carbon dioxide.

[0008] Therefore, the present invention provides an aerosol-type hair cosmetic composition comprising a concentrate (X) and a propellant (Y) containing carbon dioxide, The stock solution (X) contains the following components (a) to (c): (a) Aromatic sulfonic acid or its salt: 1% by mass or more (b) a polyol having a molecular weight of 70 or more and 150 or less; (c) Nonionic surfactants having an alkyl group or a fatty acid residue with 8 to 14 carbon atoms. and a pH value of a 5% aqueous solution of the composition is from 2.5 to 5. Effect of the Invention

[0009] The aerosol-type hair cosmetic composition of the present invention is easy to spread on hair when applied, and can effectively and quickly reduce frizz and wavy hair. Therefore, it is possible to shorten the time required for one use, and when used repeatedly every day, it is possible to easily and quickly achieve straight, shiny, manageable, youthful hair while effectively reducing the burden on the user. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention will be described in detail below. In the present invention, "ease of spreading onto hair" means that when the aerosol-type hair cosmetic composition of the present invention is applied to hair, the hair cosmetic composition can be spread evenly onto the hair while smoothly blending well into each individual hair, without unnecessary stress such as the hair getting caught in the fingers or the hair becoming tangled.

[0011] The concentrate (X) contained in the aerosol type hair cosmetic composition of the present invention contains 1% by mass or more of aromatic sulfonic acid or its salt as component (a), which promotes good spreadability on hair when applied, and can effectively and quickly exert the effect of reducing frizz and waviness in hair.

[0012] Specific examples of component (a) include one or more selected from benzenesulfonic acid or its salts, naphthalenesulfonic acid or its salts, azulene sulfonic acid or its salts, and benzophenonesulfonic acid or its salts. Examples of the salt of component (a) include sodium salts, potassium salts, lithium salts, aluminum salts, ammonium salts (NH 4+ ), organic ammonium salts, etc.

[0013] More specifically, the benzenesulfonic acid or a salt thereof may be one or more selected from benzenesulfonic acid, o-toluenesulfonic acid, p-toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid, ethylbenzenesulfonic acid, 2,4,6-trimethylbenzenesulfonic acid, and salts thereof.

[0014] More specifically, examples of naphthalenesulfonic acid or a salt thereof include 1- or 2-naphthalenesulfonic acid (α- or β-naphthalenesulfonic acid), 2,7-naphthalenedisulfonic acid, 1,5-naphthalenedisulfonic acid, 2,6-naphthalenedisulfonic acid, 1-naphthol-2-sulfonic acid, 1-naphthol-4-sulfonic acid, 2-naphthol-6-sulfonic acid, 2-naphthol-7-sulfonic acid, 2,3-dihydroxynaphthalene-6-sulfonic acid, 1,7-dihydroxynaphthalene-3-sulfonic acid, J acid (2-amino-5-naphthol-7-sulfonic acid), 1-amino-2-naphthol-4-sulfonic acid, 1-naphthol-2 ... Examples of the sulfonic acid include one or more selected from the group consisting of 2-naphthylamine-4-sulfonic acid, Broenaz acid (2-naphthylamine-6-sulfonic acid), Krebs acid (1-naphthylamine-7-sulfonic acid), 2-naphthylamine-1-sulfonic acid, 1-naphthylamine-6-sulfonic acid, 1-naphthylamine-8-sulfonic acid, 2,7-diamino-1-naphthol-3-sulfonic acid, 7,8-diamino-1-naphthol-3-sulfonic acid, 6-methyl-2-naphthalenesulfonic acid, 4-ethyl-1-naphthalenesulfonic acid, 5-isopropyl-1-naphthalenesulfonic acid, 5-butyl-2-naphthalenesulfonic acid, and salts thereof.

[0015] More specifically, the azulene sulfonic acid or a salt thereof may be one or more selected from guaiazulene sulfonic acid, 1-azulene sulfonic acid, 3-acetyl-7-isopropyl-1-azulene sulfonic acid, 3-(2-hydroxyethyl)-7-isopropyl-1-azulene sulfonic acid, 3-methyl-7-isopropyl-1-azulene sulfonic acid, 7-isopropyl-1-azulene sulfonic acid, 1,4-dimethyl-7-isopropyl-2-azulene sulfonic acid, 1,3-azulene disulfonic acid, 3-formyl-4,6,8-trimethyl-1-azulene sulfonic acid, and salts thereof.

[0016] More specifically, the benzophenone sulfonic acid or a salt thereof may be one or more selected from o-chlorobenzophenone sulfonic acid, p-chlorobenzophenone sulfonic acid, 2-hydroxybenzophenone sulfonic acid, 4-hydroxybenzophenone sulfonic acid, 2-aminobenzophenone sulfonic acid, 4-aminobenzophenone sulfonic acid, 2-methylbenzophenone sulfonic acid, 4-methoxybenzophenone sulfonic acid, 4,4'-dimethylbenzophenone sulfonic acid, and salts thereof.

[0017] Of these components (a), from the viewpoint of ensuring good ease of spreading on the hair when applied while effectively and quickly exerting the effect of reducing frizz and waviness in the hair, one or more selected from benzenesulfonic acid, naphthalenesulfonic acid, and salts thereof are preferred, and one or more selected from o-toluenesulfonic acid, p-toluenesulfonic acid, 2-naphthalenesulfonic acid, and salts thereof are more preferred.

[0018] From the viewpoint of effectively and quickly exerting the effect of reducing frizz and waviness in hair, the content of component (a) in the original solution (X) is preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less. The content of component (a1) in the original solution (X) is preferably 1 to 10% by mass, more preferably 1.5 to 8% by mass, and even more preferably 2 to 5% by mass.

[0019] The concentrate (X) contained in the aerosol type hair cosmetic composition of the present invention contains, as component (b), a polyol having a molecular weight of 70 or more and 150 or less. The inclusion of such component (b), in combination with component (c) described below, effectively increases the ease with which the aerosol type hair cosmetic composition can be spread onto hair when applied, enabling the composition to effectively and quickly exert an effect of reducing frizz and waviness in hair.

[0020] Specific examples of such component (b) include one or more selected from glycerin (molecular weight 92), diethylene glycol (molecular weight 106), propylene glycol (molecular weight 76), dipropylene glycol (molecular weight 134), pentylene glycol (molecular weight 104), 1,3-propanediol (molecular weight 76), and butylene glycol (molecular weight 90). Among them, from the viewpoint of effectively increasing the ease of spreading on hair, one or more selected from glycerin, propylene glycol, dipropylene glycol, and butylene glycol are preferred, one or more selected from glycerin, propylene glycol, and dipropylene glycol are more preferred, and one or two selected from glycerin and propylene glycol are even more preferred.

[0021] From the viewpoint of effectively increasing the ease of spreading on hair and effectively and quickly exerting the effect of reducing curls and waves in hair, the content of component (b) in the original solution (X) is preferably 2% by mass or more, more preferably 3% by mass or more, even more preferably 5% by mass or more, preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 15% by mass or less. The content of component (b) in the original solution (X) is preferably 2 to 30% by mass, more preferably 3 to 20% by mass, and even more preferably 5 to 15% by mass.

[0022] The mass ratio ((b) / (a)) of the content of component (b) to the content of component (a) in the original solution (X) is, from the viewpoint of effectively increasing the ease of spreading on hair and enabling effective and rapid exertion of the effect of reducing curls and waves in hair, preferably 0.5 or more, more preferably 1.5 or more, even more preferably 3 or more, preferably 12 or less, more preferably 8 or less, and even more preferably 5 or less. The mass ratio ((b) / (a)) of the content of component (b) to the content of component (a) in the original solution (X) is preferably 0.5 to 12, more preferably 1.5 to 8, and even more preferably 3 to 5.

[0023] The concentrate (X) contained in the aerosol-type hair cosmetic composition of the present invention contains, as component (c), a nonionic surfactant in which the carbon number of the alkyl group or fatty acid residue is from 8 to 14. The inclusion of such component (c), in combination with the above-mentioned component (b), can effectively increase the ease of spreading onto hair when applied.

[0024] Specific examples of such component (c) include one or more selected from polyoxyethylene alkyl ethers having an alkyl group with 8 to 14 carbon atoms, fatty acid polyoxyethylene sorbitan esters having a fatty acid residue with 8 to 14 carbon atoms, fatty acid polyglyceryls having a fatty acid residue with 8 to 14 carbon atoms, polyethylene glycol fatty acid esters having a fatty acid residue with 8 to 14 carbon atoms, and alkyl glycosides having an alkyl group with 8 to 14 carbon atoms. The number of moles of ethylene oxide added to polyoxyethylene alkyl ethers, fatty acid polyoxyethylene sorbitan esters, and polyethylene glycol fatty acid esters is preferably 3 or more and 30 or less, and the number of moles of glycerin added to fatty acid polyglyceryls is preferably 3 or more and 30 or less. Furthermore, the alkyl group contained in the polyoxyethylene alkyl ether and the alkyl glycoside may be a straight-chain alkyl group or a branched-chain alkyl group.

[0025] More specifically, the polyoxyethylene alkyl ether may be one or more selected from polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, a mixture thereof, and polyoxyethylene alkyl (C12-C14) ethers having a linear or branched alkyl group having 12 to 14 carbon atoms. The fatty acid polyoxyethylene sorbitan ester includes polyoxyethylene sorbitan monolaurate. The fatty acid polyglyceryl may be one or more selected from polyglyceryl monocaprylate, polyglyceryl monocaprate, and polyglyceryl monolaurate. The polyethylene glycol fatty acid ester includes polyethylene glycol monolaurate. The alkyl glycoside may be one or more selected from decyl glucoside, lauryl glucoside, and myristyl glucoside.

[0026] Among these components (c), from the viewpoint of effectively enhancing the ease of spreading on hair, preferred are nonionic surfactants in which the alkyl group or fatty acid residue has 10 to 14 carbon atoms, and more preferred are nonionic surfactants in which the alkyl group or fatty acid residue has 12 to 14 carbon atoms. Specifically, preferred are one or more selected from polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, polyoxyethylene alkyl (C12-C14) ether, polyoxyethylene sorbitan monolaurate, and decyl glucoside, more preferred are one or two selected from polyoxyethylene alkyl (C12-C14) ether and polyoxyethylene (20) sorbitan monolaurate, even more preferred are polyoxyethylene alkyl (C12-C14) ether, and even more preferred are polyoxyethylene alkyl (sec-C12-C14) ether.

[0027] From the viewpoint of effectively increasing the ease of spreading on hair and effectively and quickly exerting the effect of reducing curls and waves in hair, the content of component (c) in the original solution (X) is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, even more preferably 1% by mass or more, preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 4% by mass or less. The content of component (c) in the original solution (X) is preferably 0.5 to 10% by mass, more preferably 0.8 to 5% by mass, and even more preferably 1 to 4% by mass.

[0028] The mass ratio ((c) / (a)) of the content of component (c) to the content of component (a) in the original solution (X) is preferably 0.1 or more, more preferably 0.3 or more, even more preferably 0.5 or more, and preferably 2.5 or less, more preferably 2 or less, and even more preferably 1.5 or less, from the viewpoint of effectively increasing the ease of spreading on hair and enabling effective and rapid exertion of the effect of reducing curls and waves in hair. The mass ratio ((c) / (a)) of the content of component (c) to the content of component (a) in the original solution (X) is preferably 0.1 to 2.5, more preferably 0.3 to 2, and even more preferably 0.5 to 1.5.

[0029] The concentrate (X) preferably further contains water. This allows each component of the concentrate (X) to be dispersed or dissolved well, and the aerosol type hair cosmetic composition of the present invention can be easily spread on hair while promoting its penetration into hair. Examples of water include ion-exchanged water and distilled water. The content of water in the raw solution (X) is preferably 10% by mass or more, more preferably 30% by mass or more, even more preferably 50% by mass or more, and preferably 95% by mass or less. The content of water in the raw solution (X) is preferably 10 to 95% by mass, more preferably 30 to 95% by mass, and even more preferably 50 to 95% by mass.

[0030] The stock solution (X) may contain, as surfactants other than the above-mentioned components, within a range that does not impair the effects of the present invention, anionic surfactants such as alkylbenzenesulfonates, alkyl ether sulfates, alkenyl ether sulfates, alkyl sulfates, alkenyl sulfates, olefinsulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl ether carboxylates, alkenyl ether carboxylates, α-sulfofatty acid salts, N-acylamino acid salts, mono- or di-phosphate esters, and sulfosuccinate esters; cationic surfactants such as monoalkyltrimethylammonium chloride, dialkyldimethylammonium chloride, monoalkyltrimethylammonium bromide, stearoxypropyldimethylamine, and stearoxypropyltrimonium chloride; Amphoteric surfactants such as imidazoline, carbobetaine, amidobetaine, sulfobetaine, hydroxysulfobetaine, amidosulfobetaine, etc. may be included. In the original solution (X), the content of the anionic surfactant is preferably 0.01 to 50 mass %, the content of the cationic surfactant is preferably 0.01 to 10 mass %, and the content of the amphoteric surfactant is preferably 0.01 to 30 mass %.

[0031] Furthermore, in addition to the above-mentioned components, the hair cosmetic composition may further contain, as components usually blended in hair cosmetics, antioxidants, oils, antidandruff agents, vitamins, bactericides, anti-inflammatory agents, preservatives, chelating agents, moisturizers, pearl agents, ceramides, fragrances, ultraviolet absorbers, pH adjusters, etc., within the scope that does not impair the effects of the present invention.

[0032] The aerosol-type hair cosmetic composition of the present invention contains the above-mentioned concentrate (X) and a propellant (Y) containing carbon dioxide. That is, the aerosol-type hair cosmetic composition of the present invention is a cosmetic composition in which the above-mentioned concentrate (X) and the propellant (Y) are enclosed in an aerosol container, and which takes the form of an aerosol spray, aerosol foam, or the like. This allows the hair cosmetic composition to be easily discharged from the container by simply spraying it when applied, and also effectively increases the ease of spreading the hair cosmetic composition, making it easy to spread the hair cosmetic composition from the roots to the tips, thereby enabling the effect of reducing curls and waves in hair to be effectively and quickly achieved.

[0033] Examples of aerosol containers that can be used include known pressure-resistant containers made of metal or plastic, or double-structure containers in which an inner bag is housed inside a pressure-resistant container. In the double-structure container, the concentrate (X) is filled into the inner bag, and the propellant (Y) is filled between the pressure-resistant container and the inner bag. The method of preparing the aerosol formulation is not particularly limited. For example, the aerosol formulation can be prepared by filling the concentrate (X) into a pressure-resistant container that constitutes an aerosol container, attaching a valve, and then filling the propellant (Y) through the valve.

[0034] The propellant (Y) contains carbon dioxide and may contain other liquefied gases such as nitrogen, propane, normal butane, isobutane and mixtures thereof such as liquefied petroleum gas (LPG), dimethyl ether, isopentane, and the like. From the viewpoint of exhibiting good ejection properties and enhancing the effect of reducing curls and waves in hair, the content of carbon dioxide in the propellant (Y) is preferably 50% by mass or more, more preferably 70% by mass or more, even more preferably 80% by mass or more, still more preferably 90% by mass or more, and even more preferably 100% by mass. That is, the propellant (Y) preferably contains only carbon dioxide.

[0035] The internal pressure of the aerosol container after being filled with the propellant (Y) at 25° C. is preferably 0.1 to 1.3 MPa, more preferably 0.3 to 1.0 MPa, from the viewpoint of obtaining an appropriate spray speed.

[0036] In the aerosol-type hair cosmetic composition of the present invention, from the viewpoints of effectively increasing the ease of spreading onto hair when applied while maintaining good ejection properties, and effectively and quickly reducing curls and waves in hair, the mass ratio of the concentrate (X) to the propellant (Y) ((X):(Y)) is preferably 95:5 to 99:1, and more preferably 97:3 to 98.5:1.5.

[0037] The aerosol type hair cosmetic composition of the present invention can be used as a hair cleanser, rinse, conditioning agent, or treatment agent, and can be utilized as either a rinse-off type or a leave-in type. Of these, from the viewpoint of imparting a light finish and a good feel such as smoothness to hair, it is preferable to use it as a rinse-off type, and from the viewpoint of realizing the effect of effectively and quickly reducing curls and waves in hair, it is more preferable to use it as a rinse, conditioning, or treatment agent.

[0038] In order to fully enjoy the effects of the present invention, the aerosol type hair cosmetic composition of the present invention may be used by applying it to hair, leaving it for 1 second to 10 minutes, or preferably for 1 to 5 minutes, and then rinsing. When applying the aerosol type hair cosmetic composition of the present invention to hair, the hair may be appropriately subjected to pre-treatment, post-treatment, or drying treatment. Specifically, for example, when the aerosol type hair cosmetic composition of the present invention is used as a hair cleansing agent, it is applied to hair, and then the hair is washed together with the scalp, and then rinsed. When the aerosol type hair cosmetic composition of the present invention is used as a rinse agent, conditioning agent, or treatment agent, it is applied to hair, and then left for 1 to 5 minutes to allow the hair cosmetic composition to blend with the hair, and then rinsed. EXAMPLES

[0039] The present invention will now be described in detail with reference to the following examples. In the tables, the content of each component is expressed as mass % unless otherwise specified.

[0040] [Examples 1 to 8, Comparative Examples 1 to 9] The ingredients were blended according to the recipe shown in Table 1 and mixed until uniform to prepare a concentrate (X). The concentrate (X) was then filled into an aerosol container (manufactured by Toyo Seikan Co., Ltd., container type: BL35A115-H, inner coating: epoxy phenol-based, outer surface: plain silver (or plain white)), and the propellant (Y) was added in the ratio shown in Table 1. The internal pressure in the container at 25°C was set to 0.7 MPa to produce each cosmetic. In Comparative Example 8, the concentrate (X) was used as it was as a cosmetic without being filled into an aerosol container. The obtained cosmetic preparation was used to carry out the measurements and evaluations according to the following methods. The results are shown in Table 1.

[0041] <pH Measurement> The prepared stock solution (X) was adjusted to a 5% by mass aqueous solution using water, thoroughly stirred, and then the pH was measured at 25° C. using a pH meter (HM-42X, manufactured by DKK-TOA Corporation).

[0042] 《Habit reduction rate》 The following operations 1) to 5) were carried out to determine the curl reduction rate as an index for evaluating the effect of reducing curls and waves in hair. 1) Curled Caucasian hair (Kerling International Haarfabrik, European-natural hair remis curly 30-35 cm) was placed on a flat plate and cut out at the point of inflection when viewed from above (hereinafter referred to as C curl hair). This was immersed in ion-exchanged water for 20 minutes and then left to stand at 20°C and 50% RH for more than 24 hours. 2) Place the C curl hair on 1 mm graph paper and take a picture from above. Using the image obtained, consider the C curl hair as an arc. What is the diameter D of the circle inscribed in the arc? 0 was measured.

[0043] 3) Next, each cosmetic material obtained in the Examples and Comparative Examples was sprayed from a container, and C curl hair was immersed in it for 5 minutes at 40°C, and then immersed in ion-exchanged water for 1 minute, and this operation was repeated 5 times. Next, the obtained C curl hair was immersed in ion-exchanged water at 25°C for 20 minutes, and then left to stand at 20°C and 50% RH for 24 hours or more. 4) After the C curl hair is left standing, the diameter D of the circle inscribed in the arc of the C curl hair is measured, and the ratio of diameter D / diameter D 0 The value was calculated. 5) The above steps 1) to 4) were carried out on five separately cut pieces of C-curl hair, and the average value was calculated as the curl relaxation rate. Incidentally, if the obtained curl reduction rate value is 1.10 or more, it means that the effect of reducing curls in hair is excellent.

[0044] Combing Force The combing force was measured by carrying out the following operations 1) to 3). 1) Preparation of plain shampoo The following ingredients were placed in a beaker and heated to 80° C., then mixed and confirmed to be uniformly dissolved, after which the mixture was cooled to obtain a plain shampoo. (Plain Shampoo Composition) (Component) (mass%) Polyoxyethylene lauryl ether sulfate sodium 15.5 (57.4% as Emeral 227-pH11 (Kao Corporation, active ingredient 27% by mass) Lauramide diethanolamide 2.28 (Aminone L-02 (Kao Corporation)) Sodium chloride 0.80 (Yakishio S (Japan Salt Manufacturing Co., Ltd.)) Sodium benzoate 0.18 (Sodium benzoate solution (35%) (Fushimi Pharmaceutical Co., Ltd., active ingredient 35% by mass) Disodium edetate 0.15 (Clewat N (manufactured by Nagase & Co., Ltd.)) Phosphoric acid 0.07 (Phosphoric acid, special grade reagent (manufactured by Fujifilm Wako Pure Chemical Industries, active content 85% by mass) Purified water Balance Total 100.0

[0045] 2) Next, the Japanese hair was bleached four times to prepare a hair bundle for evaluation. 30 g of the hair bundle for evaluation was washed with the plain shampoo prepared in 1) above, and excess water was removed. 3) Each cosmetic obtained in the Examples and Comparative Examples was sprayed from a container (the cosmetic of Comparative Example 8 was directly applied as is), 1 g of the spray was spread over the evaluation hair bundle, and the hair bundle was then set in a combing force measuring device (Utsunomiya Seiki Co., Ltd., "KOT-0303"). Next, the hair bundle was sandwiched between two brushes from both sides, and the brushes were lowered from the root of the hair bundle to the tip. The maximum load (gf) applied to the brush when the brush passed from the root to the tip was measured three times, and the average value was taken as the combing force (gf). Based on the obtained values, a 5-point evaluation was conducted according to the following criteria. Furthermore, a rating of "C" or higher on a 5-level scale means that the cosmetic is easy to spread onto hair without causing any unnecessary strain.

[0046] A: Less than 950gf B: 950gf or more and less than 1050gf C: 1050gf or more and less than 1150gf D: 1150gf or more and less than 1250gf E:1250gf or more

[0047] [Table 1]

[0048] *1: PTS70% solution (manufactured by Konan Kako Co., Ltd.) *2: Sodium β-naphthalenesulfonate (B-NAPH.SASS) (manufactured by Sugai Chemical Co., Ltd.) *3: Concentrated glycerin for cosmetics (manufactured by Kao Corporation) *4:DPG-RF (ADEKA) *5: ADEKA Car Pole DL-30 (manufactured by ADEKA) *6: Sorbitol #650 (Mitsubishi Corporation Life Sciences) ※7: 95% synthetic alcohol (manufactured by Japan Synthetic Alcohol Co., Ltd.) *8: Softanol 90 (manufactured by Nippon Shokubai Co., Ltd.) *9: Leodor Super TW-L120 (Kao Corporation) *10: Mydol 10 (Kao Corporation) *11: Leodor TW-P120 (Kao Corporation) *12: Leodor TW-O120V (Kao Corporation) *13: Emanon CH-60 (Kao Corporation) *14: Citric acid (50%) (Showa Kako Co., Ltd.) *15: Liquid caustic potash (48%) (AGC) *16: Food additive carbon dioxide (manufactured by Taiyo Nippon Sanso Corporation)

Claims

1. An aerosol-type hair cosmetic composition comprising a concentrate (X) and a propellant (Y) containing carbon dioxide, The stock solution (X) contains the following components (a) to (c): (a) Aromatic sulfonic acid or its salt: 1% by mass or more (b) a polyol having a molecular weight of 70 or more and 150 or less (c) a nonionic surfactant in which the alkyl group or fatty acid residue has 8 to 14 carbon atoms; and a pH value of a 5% aqueous solution of the composition is 2.5 or more and 5 or less.

2. 2. The aerosol hair cosmetic composition according to claim 1, wherein the mass ratio ((b) / (a)) of the content of component (b) to the content of component (a) in the concentrate (X) is 0.5 or more and 12 or less.

3. 3. The aerosol hair cosmetic according to claim 1, wherein the mass ratio ((c) / (a)) of the content of component (c) to the content of component (a) in the concentrate (X) is 0.1 or more and 2.5 or less. Fee.

4. 3. The aerosol hair cosmetic composition according to claim 1, wherein component (b) is one or more selected from the group consisting of glycerin, diethylene glycol, propylene glycol, dipropylene glycol, pentylene glycol, 1,3-propanediol, and butylene glycol.

5. 3. The aerosol hair cosmetic preparation according to claim 1, wherein the content of component (c) in the concentrate (X) is 0.5% by mass or more and 10% by mass or less.