JP5623790B2 - Mist-like hair conditioner - Google Patents

Description

  The present invention relates to a mist-like hair styling agent.

  In hair styling agents, it is common to increase the blending amount of the set polymer or oil agent in order to increase the holding power of the hairstyle set. However, if the amount of the set polymer is simply increased, the hair that has been set is hard and stiff. In addition, hair cosmetics simply formulated with a set polymer generally do not allow re-styling once the hairstyle has collapsed after styling. On the other hand, in the case of hair cosmetics formulated with oils such as wax, it is possible to re-hair after the hairstyle collapses, but the set holding power is extremely low compared to the set polymer, and the set holding power is low. Increasing the amount of oil to increase it causes sticky hair to become sticky.

  Accordingly, there has been proposed an aerosol cosmetic that enables re-styling by using a specific solvent or the like in combination with the set polymer (for example, Patent Document 1). However, even if it is such a re-hairable cosmetic, it will cause stickiness when trying to hold a sufficient set holding power, but if it tries to suppress stickiness, a sufficient set holding power will not be obtained, It is difficult to balance both performances.

  In addition, specific polymers have been proposed that adhere to each other but have low adhesion to other objects (hereinafter referred to as “self-selective adhesion”) (for example, Patent Document 2). This polymer is useful even in that it can be easily washed because it is not sticky even when it is attached to a finger or the like and can be dissolved in water, alcohol or the like. However, Patent Document 2 only discloses a polymer itself, a pressure-sensitive adhesive made of the polymer, and a pressure-sensitive adhesive sheet having a layer made of the polymer, and can be applied to hair cosmetics and hairdressing agents. There is no description or suggestion about the appropriate dosage form.

JP 2005-68134 A JP 2009-41004

spring Hair & Beauty Spring 2009, p.62-67

  The present inventors have paid attention to a specific polymer described in Patent Document 2 and have studied hair styling agents using the polymer. However, when this polymer is applied to the hair wax, the hair wax is usually applied to the hair after being spread on the palms of both hands, so that eventually stickiness occurs between the hands. Therefore, when it was studied to apply to a mist-like hair conditioner that is less likely to adhere to the hand and can be easily applied to the hair, such a mist-like hair conditioner is light enough to contain a lot of soft air. Although it is suitable for forming a hairstyle with a certain amount of hair, for example, a hairstyle with a sense of unity that has been popular recently, such as “a blend of lightness with a heavy style” (for example, p. “Vague hair” as described in 62 to 67. However, in general, various terms are used for the hairstyle.) To form the hair, the soft feeling is too strong and the heavy feeling is slightly I encountered a problem that would be difficult. This is because when the mist-like hairdressing agent is used, the polymer is fixed to the hair as a large number of small particles, but because of its self-selective adhesive property, the polymer particles once attached to the hair do not adhere to other hairs. This is considered to be because the polymer particles that contribute to fixing the hair only happen to adhere to the intersections of the hairs, and then happen to contact the particles.

  Therefore, the object of the present invention is to provide a wide range of applications for hairstyles that are non-sticky and capable of styling, despite having a high hairstyle set holding power and capable of re-styling. The object of the present invention is to provide a mist-like hair styling agent that is easy to make a hairstyle with a feeling of unity.

  When the present inventors apply a specific softening agent to a specific polymer described in Patent Document 2 in a certain ratio and apply it to the mist-like hairdressing agent, due to the self-selective adhesiveness that is characteristic of the polymer. Without sacrificing stickiness, it can slightly increase the adhesiveness to other things, and a mist-like hair conditioner that is excellent in obtaining a moderately coherent hairstyle with a mixture of weight and lightness can be obtained I found out.

That is, the present invention contains component (A) and at least one of components (B) and (C), the total content of components (B) and (C) is 0.05 to 5% by mass, A mist-like hairdressing agent in which the mass ratio (A) / [(B) + (C)] of the content of A) and the total content of components (B) and (C) is 1 to 100 is there.
(A) Polyether polycarbonate having a structural unit represented by the general formula (1) 0.5 to 15% by mass

[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, n represents an average value of 5 to 1000, p represents an average value of 5 to 100, and (n × p) AO may be the same or different. ]
(B) Dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate copolymer
(C) A solvent having two or more hydroxyl groups, a molecular weight of 62 to 1,000, and liquid at 30 ° C

  The mist-like hair styling agent of the present invention has a high hairstyle set holding power and is capable of re-hairing, but does not become sticky and has a wide range of applicable hairstyles that can be used for hair styling.

((A) Polyether polycarbonate)
The polyether polycarbonate used in the present invention has a structural unit represented by the general formula (1). In the general formula (1), A represents an alkylene group having 2 to 6 carbon atoms, and (n × p) AOs may be the same or different, but are preferably composed of at least two alkyleneoxy groups. . A is preferably an alkylene group having 2 to 4 carbon atoms, more preferably an alkylene group having 2 or 3 carbon atoms, and (n × p) AOs further comprising a combination of an ethyleneoxy group and a propyleneoxy group. preferable. When (AO) _n is composed of different alkyleneoxy groups, these may be block structures or random structures, but are preferably random structures.

In the general formula (1), n is a number of 5 to 1000 indicating the average number of added moles of an alkyleneoxy group, and a number of 10 to 500 is preferable. p is a number of 5 to 100 indicating the average number of repeats of the [(AO) _n COO] group, and a number of 5 to 50 is preferred.

The polyether polycarbonate can be produced by the method shown in the following (A) or (B), and the method (A) is preferable.
(A) A method comprising a step of transesterifying a carbonate ester and a polyether diol.
(B) A method comprising a step of reacting phosgene and polyether diol.

  In the method (a), examples of the carbonate used for the production of the polyether polycarbonate include dimethyl carbonate, diphenyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, and the like, and dimethyl carbonate and diphenyl carbonate are preferred.

  Polyether diol used in the production of polyether polycarbonate is preferably polyethylene glycol, polypropylene glycol, polytetramethylene glycol, a copolymer of ethylene oxide and propylene oxide, and a random copolymer obtained by copolymerization of ethylene oxide and propylene oxide. Is more preferable. Commercially available products may be used as the polyether diol, and examples thereof include ADEKA polyether PR-3005, 3007, PR-5007 (manufactured by ADEKA Co., Ltd.) and the like.

  The number average molecular weight of the polyether diol used in the present invention is preferably 200 to 50,000, more preferably 400 to 20,000, from the viewpoint of obtaining good solubility in water or alcohol.

  In the production of the polyether polycarbonate, other polyols may coexist in addition to the polyether diol. Other polyols include diols such as ethylene glycol, propylene glycol, butanediol, tetramethylene glycol, 2,2-dimethyl-1,3-propanediol, pentanediol and hexanediol; polyols such as glycerin and pentaerythritol; bisphenol A, aromatic group-containing diols such as ethylene oxide adducts of bisphenol A, and the like.

When the above-mentioned glycerin, pentaerythritol, bisphenol A, ethylene oxide adduct of bisphenol A, etc. coexist as other polyols in the transesterification of carbonate ester and polyether diol, Will contain structural parts derived from these other polyols. In this case, such a structure portion may be a block structure or a random structure, similar to the above-described (AO) _n .

  The ratio of the polyether diol to the total polyol is preferably 50% by mass or more, more preferably 80% by mass or more, and further preferably 90% by mass or more.

  The reaction molar ratio between the carbonate ester and the polyether diol when transesterifying the carbonate ester and the polyether diol is preferably 1 / 0.9 to 1 / 1.1, and more preferably 1 / 0.95 to 1 / 1.05.

  When transesterifying the carbonate ester and the polyether diol, a normal ester exchange reaction catalyst can be used. Examples of such catalysts include alkali metals, alkaline earth metals, and their alkoxides, hydrides, hydroxides, carbonates, acetates, oxides, and the like. Also, use alkoxides, hydrides, hydroxides, carbonates, acetates, oxides, etc. of metals such as zinc, aluminum, tin, titanium, lead, germanium, antimony, bismuth, nickel, iron, manganese, zirconium, etc. You can also. Moreover, organic base compounds, such as a triethylamine and imidazole, can also be used. Among these catalysts, alkoxides of alkali metals such as sodium, potassium, rubidium and cesium, hydrides, hydroxides, carbonates, acetates, oxides, alkoxides and hydroxides of metals such as tin and titanium Carbonate, acetate, oxide and the like are preferable.

  The reaction temperature in the transesterification reaction between the carbonate ester and the polyether diol is preferably 100 to 300 ° C, more preferably 120 to 250 ° C, still more preferably 120 to 200 ° C. The reaction pressure may be normal pressure, but is preferably under reduced pressure.

  In the transesterification reaction, it is desirable to prepare a carbonate ester, a polyether diol, and a catalyst, and stir at the above temperature to remove alcohol released from the carbonate ester from the reaction system. In the case of normal pressure, desorbed alcohol can be effectively removed by circulating an inert gas such as nitrogen. In the case of reduced pressure, the volatilized elimination alcohol can be easily removed out of the system.

  The product obtained by transesterification is preferably subjected to a purification step excluding low molecular weight components. By removing the low molecular weight component, it is possible to reduce the other adhesion (adhesive strength to other things), and it is possible to obtain a better mist-like hairdressing agent with less stickiness.

  The removal of the low molecular weight component can be performed, for example, by solvent purification. More specifically, the product obtained by the transesterification reaction is dissolved in a water-soluble solvent, and a polyether polycarbonate having a small amount of low molecular weight components can be precipitated by adding a hydrophobic solvent.

  Examples of the water-soluble solvent include alcohol solvents such as methanol, ethanol and 2-propanol, acetone and methyl ethyl ketone, and ethanol is preferable. Examples of the hydrophobic solvent include hydrocarbon solvents such as hexane and heptane, and hexane is preferable. By adjusting the amount of the hydrophobic solvent added to the water-soluble solvent, a polyether polycarbonate having a desired molecular weight distribution can be obtained. The amount of the hydrophobic solvent added to the water-soluble solvent is preferably 0.1 to 50 times by volume, more preferably 0.5 to 10 times by volume.

  The weight average molecular weight of the polyether polycarbonate is preferably 50,000 or more, more preferably 70,000 or more, and even more preferably 100,000 or more, from the viewpoint of good self-selective adhesiveness. In addition, from the viewpoint of ease of blending into the mist-like hairdressing agent, washability at the time of washing, etc., it is preferably 1,000,000 or less, more preferably 700,000 or less, and even more preferably 500,000 or less.

  In addition, the weight average molecular weight of polyether polycarbonate and the number average molecular weight of the above-mentioned polyether diol shall mean the value measured by gel permeation chromatography (GPC). More specifically, the product name “HLC-8220GPC” (Tosoh Corporation) is used as the GPC device, and the value is obtained under the following GPC measurement conditions by polystyrene conversion value.

<Measurement method of average molecular weight>
Sample concentration: 0.25% by mass (chloroform solution)
・ Sample injection volume: 100μL
・ Eluent: Chloroform ・ Flow rate: 1.0 mL / min
・ Measurement temperature: 40 ℃
・ Column: Product name “KG” (1) + Product name “K-804L” (2) (above, Shodex)
・ Detector: Differential refractometer (attached to the GPC device trade name “HLC-8220GPC” (Tosoh Corporation))
Standard polystyrene samples: “TSKstandard POLYSTYRENE F-10” (molecular weight 102,000), F-1 (1020,000), A-1000 (870) (above, Tosoh Corporation), and “POLYSTYRENE STANDARD” (molecular weight 900,000, 3 10,000; Nishio Kogyo)

  When the self-selective adhesiveness of the polyether polycarbonate is expressed as a physical property value obtained by the measurement method shown below, the physical property value indicating the adhesiveness between the same measurement target polymers is “self-adhesion”, the measurement target polymer and other than this When the physical property value indicating the adhesion to others is defined as “adhesion strength”, the relative ratio of the adhesion strength / self-adhesion strength is desirably 0.7 or less, more preferably 0.5 or less, and still more preferably 0.3 or less. Further, it is desirable that the self-adhesion force is in a range of 200 gf or more. More preferably, the self-adhesion force is 200 gf or more, and the other adhesion force is 140 gf or less, more preferably 120 gf or less, and still more preferably 100 gf or less.

<Measurement method of adhesiveness (other adhesion and self-adhesion)>
A 20% by mass toluene solution of the polymer to be measured is prepared, cast on a PET sheet to a thickness of 500 μm with a bar coater, heated at 60 ° C. for 12 hours, and then left at 25 ° C. and 50% RH for 1 day. Using a tacking tester (Resca, TACIIUC-2006), the adhesive strength between the sheet and various materials attached to the probe of the tacking tester is measured.
The measurement conditions were a probe lowering speed of 600 mm / sec, a probe pressing load of 200 gf, and a pressing time of 0.5 sec. A polypropylene disk (engineering test service test piece: Mitsubishi Chemical Noblen NH-8) with an indenter area of 8 mm ² was attached to the tip of the probe, and the adhesive strength was measured. The obtained value was defined as “other adhesion”. On the other hand, the polymer to be measured was dissolved in a solution, cast and dried in the same manner as described above to obtain a PET disc having an indenter area of 8 mm ² , and this was attached to the probe tip to measure the adhesive force. The value was “self-adhesion”.

  When the polyether polycarbonate has the above-mentioned self-selective tackiness, very strong tackiness and re-adhesion become possible when the tacky sites are bonded to each other while there is little or low tackiness at room temperature.

  In a conventional re-hairable aerosol cosmetic (for example, Patent Document 1), hair is fixed by adhesive force, and if the particle size of each mist-like particle to be attached to the hair is too large, stickiness may be caused. . On the other hand, since the polyether polycarbonate of component (A) used in the present invention has good self-selective adhesiveness, it does not cause stickiness regardless of the size of the particles. From this, in the mist-like hair styling agent of the present invention, it is sufficient that the hair styling agent becomes particles in a mist-like range generally used in the field of hair cosmetics when sprayed in a mist form. There is no need to adjust the diameter.

  In order to obtain higher hair styling properties and re-styling properties, it is preferable that the pressure-sensitive adhesive is strongly held between the hairs. In a mist-like hairdressing agent, when applied to hair, the polymer adheres to the hair in a state of being plasticized with a solvent, and can enter even fine irregularities. The polymer is fixed on the hair in the course of the subsequent evaporation of the solvent.

  The content of the polyether polycarbonate of component (A) in the mist-like hairdressing agent of the present invention (in the case of an aerosol type, the content in the stock solution; the same shall apply hereinafter) shall not be sticky and shall have a good set holding power. From the viewpoint, 0.5 to 15% by mass, further 0.75 to 10% by mass, and particularly 1 to 7% by mass are preferable.

[(B) Dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate copolymer]
As the component (B), for example, commercially available products such as Plus Size L-2700 (Kohyo Chemical Co., Ltd.) can be used.

[(C) a solvent having two or more hydroxyl groups, a molecular weight of 62 to 1000, and liquid at 30 ° C.]
The solvent of component (C) has two or more hydroxyl groups, has a molecular weight of 62 to 1000, and is liquid at 30 ° C., but preferably has a molecular weight of 90 to 600, particularly 100 to 200. . Specifically, propylene glycol (molecular weight 76.1), 1,3-butylene glycol (molecular weight 90.1), glycerin (molecular weight 92.1), isopentylene glycol (molecular weight 104.1), hexylene glycol (molecular weight 118.2), dipropylene glycol ( Molecular weight 134.2), polypropylene glycol (degree of polymerization 9, molecular weight 540), polyethylene glycol 200, 400, 600 and the like. Of these, those having 4 or more carbon atoms are preferred from the viewpoint of obtaining appropriate tackiness. Specifically, dipropylene glycol, polypropylene glycol (polymerization degree 9, molecular weight 540) and 1,3-butylene glycol are preferable, and dipropylene glycol is particularly preferable. The term “liquid” as used herein refers to a state in which the viscosity measured with a Brookfield type rotational viscometer (rotor No. 2, rotational speed 12 rpm, 60 seconds, 30 ° C.) is 1000 mPa · s or less.

  The mist-like hairdressing agent of the present invention contains at least one of component (B) and component (C). The total content of component (B) and component (C) improves the adhesion of the hair styling agent as a whole (that is, adhesiveness to the hair) without compromising the self-selective adhesiveness of component (A), and is moderately organized. From the viewpoint of making it suitable for obtaining a sensed hairstyle, it is 0.05 to 5% by mass, preferably 0.08 to 3% by mass, and more preferably 0.1 to 2% by mass.

  In addition, the content of each of the component (B) and the component (C) is preferably 0.05 to 3% by mass, more preferably 0.08 to 2% by mass, further 0.1 to 0.1% from the same viewpoint as the case of the total content of both. 1.5% by mass is preferred.

  Further, the mass ratio (A) / [(B) + (C)] of the content of the component (A) and the total content of the components (B) and (C) in the mist-like hairdressing agent of the present invention is as described above. From the same viewpoint, it is 1-100, Preferably it is 1.5-70, More preferably, it is 2-30.

[(D): Anionic set polymer]
The mist hair preparation of the present invention may further contain an anionic set polymer as component (D). As an anionic set polymer of component (D), natural anionic set polymers such as xanthan gum, carrageenan, sodium alginate, pectin, fercelan, gum arabic, gatch gum, karaya gum, tragacanth gum, agar powder, carboxymethyl cellulose; acidic vinyl monomer Alternatively, a synthetic anionic set polymer such as a polymer obtained by polymerizing a salt thereof may be used. Here, the acidic vinyl monomer is a compound having an acidic group such as a carboxy group and a phosphoric acid group and a polymerizable vinyl group in one molecule, and examples thereof include acrylic acid, methacrylic acid, and crotonic acid. Vinyl benzoic acid, itaconic acid, maleic acid, fumaric acid and the like. Specific examples of synthetic anionic set polymers include acrylic acid / ethyl acrylate / Nt-butylacrylamide copolymer (BASF Ultrahold 8, Ultrahold Strong, etc.), octylacrylamide / acrylic acid copolymer (National Starch Co., Ltd.). Anformer V-42, etc.), acrylate / methacrylate / acrylic acid / methacrylic acid copolymers (Union Carbide Amhold DR25, etc.), acrylates / diacetone acrylamide copolymers (Plus size L-9540B, etc. from Kyoyo Chemical Industries), Methyl vinyl ether / alkyl maleate copolymer (ISP Gantrez ES-225, ES-425, SP-215, etc.), vinyl acetate / crotonic acid copolymer (National Starch resin 28-1310, etc.), vinyl acetate / Crotonic acid / Neode Vinyl acetate copolymers (National Starch Resin 28-2930, etc.), vinyl acetate / crotonic acid / propionate vinyl copolymers (BASF Rubiset CAP, etc.), vinyl alcohol / itaconic acid copolymers (Kuraray KM-118, etc.) ) And other carboxylic acid-based anionic set polymers; other homopolymers based on phosphate group-containing monomers (DAP polyphosmer M-101, polyphosmer PE-201, polyphosmer MH-301, etc.), phosphate group-containing monomers and acrylic Examples include phosphate anionic set polymers such as copolymers with acid esters (such as polyphosmer MHB-10 from DAP).
Of these anionic set polymers, carboxylic acid anionic set polymers are preferred, and non-neutralized ones are particularly preferred.

  The anionic set polymer of component (D) can be used in combination of two or more, and the content is further reduced by reducing the relative ratio of the other adhesion force / self-adhesion force, and there is no stickiness. From the viewpoint of having retentivity and re-styling properties, it is preferably 0.5 to 20% by mass, more preferably 1 to 15% by mass, and particularly preferably 1.5 to 10% by mass in the mist-like hair styling agent of the present invention.

  The weight ratio of the polyether polycarbonate of component (A) and the anionic set polymer of component (D) makes the relative ratio of other force / self-adhesion force smaller, no stickiness, good set retention and re-styling 20/80 to 80/20 are preferable from the viewpoint of having properties, more preferably 30/70 to 70/30, and particularly preferably 40/60 to 60/40.

[Medium]
As the solvent (supporting medium), water, lower alcohols (ethanol, isopropanol, etc.), lactones, etc. can be used, and these can be used alone or in combination. Among these, from the viewpoint of versatility, water and ethanol are preferable, and ethanol is particularly preferable.

[Optional ingredients]
In the mist-like hairdressing agent of the present invention, in addition to the above-mentioned components, a cosmetic oil agent can be added within a limit that does not hinder the effects of the present invention (0.1 to 10% by mass). Such cosmetic oils include glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; waxes such as beeswax, whale wax, lanolin, carnauba wax; cetyl alcohol, oleyl alcohol, hexadecyl alcohol Higher alcohols such as lauryl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol; isopropyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, Esters of myristic acid octyldodecyl acid; liquid oils such as liquid paraffin, petrolatum, squalane, hydrogenated polyisobutene; dimethylpolysiloxane, methylphenylpolysiloxane, polyether modified Examples include silicone derivatives such as silicone oil, epoxy-modified silicone oil, amino-modified silicone oil, and alkyl-modified silicone oil; polypropylene glycol and the like. Furthermore, an emulsifier can be added in order to stabilize the emulsification of these cosmetic oils. As the emulsifier, any of anionic, amphoteric, cationic and nonionic surfactants can be used.

  Furthermore, in the mist-like hair styling agent of the present invention, a preservative and an antioxidant can be added to prevent the daily deterioration of flavors and pigments and hair cosmetics in order to increase the commercial value. As needed, humidity control agents such as glycerin and propylene glycol, curing agents, antistatic agents, surfactants, antifoaming agents, dispersants, thickeners, UV absorbers, antioxidants, preservatives, colored dyes Further, a dye fixing agent, a propellant and the like can be added.

(Drug type)
The dosage form of the mist-like hairdressing agent of the present invention may be either an aerosol type or a non-aerosol type.

The aerosol mist hairdressing agent is manufactured by filling the pressure-resistant container with the above hairdressing agent together with a propellant. Examples of the propellant include liquefied petroleum gas (LPG), dimethyl ether (DME), carbon dioxide gas, nitrogen gas, and mixtures thereof. Alternatively, alternative CFCs such as HFC-152a can be used. The amount of the propellant is the mass ratio of the stock solution to the propellant in order to obtain good jetting properties and good adhesive properties, and the stock solution / propellant = 5/95 to 99/1, especially 20/80 to 95/5. The range of is preferable. Moreover, in order to obtain a good injection characteristic and a good adhesive characteristic, the pressure in the pressure vessel is preferably adjusted to be 0.12 to 0.45 MPa at a temperature of 25 ° C.
The non-aerosol type mist hairdressing agent is produced by filling the above hairdressing agent into a pump spray container or a trigger spray container.

  In the following examples, the weight average molecular weight and tackiness (other adhesion force and self-adhesion force) of the polyether polycarbonate were measured by the above-described methods.

Synthesis example 1
In a reaction vessel equipped with a stirrer, a fractionation condenser and a thermometer, a random copolymer of ethylene oxide and propylene oxide (number average molecular weight 5000, hydroxyl value 22.0 mg KOH / g, manufactured by ADEKA Corporation, trade name ADEKA polyether PR-5007) 27.1 g (0.005 mol), 1.15 g (0.005 mol) of diphenyl carbonate and 4 mg (0.01 mmol) of cesium carbonate were added.

While stirring in the reaction vessel, the temperature was raised to 160 ° C., and heating was continued for 2 hours as it was, and the phenol produced by the reaction was discharged out of the system. Furthermore, vacuum suction was started using a vacuum pump, and the reaction was carried out for about 4 hours while gradually raising the temperature to 180 ° C. to obtain a polyether polycarbonate (hereinafter referred to as polyether polycarbonate 1). The polyether polycarbonate 1 had a weight average molecular weight of 180,000.
The other attachment strength was 106 gf, the self-adhesion strength was 233 gf, and the other attachment strength / self-adhesion strength was 0.45.

Examples 1-12, Comparative Examples 1-10
According to a conventional method, a hair spray stock solution having the composition shown in Table 1 is prepared. The propellant (DME / LPG (mass ratio) = 70/30, 0.20 MPa) and the stock solution shown in the table are mixed with the propellant / stock solution = 50/50. An aerosol type hair styling agent was manufactured by filling an aerosol container having the following valve and button at (mass ratio). About the obtained hairdressing agent, the ease of making the hairstyle which mixed weight and lightness, non-stickiness, set holding power, and re-styling power were evaluated.

Valve: Stem diameter φ0.4mm, housing diameter φ0.6mm x vapor tap diameter φ0.4mm
Button: Diameter 0.60mm (with mechanical breakup) (Mitani Valve)

1) Ease of making hairstyles that mix weight and lightness:
Hair styling was performed using each hair spray, and the sensory evaluation was performed according to the following criteria for the ease of making a hairstyle that is moderately unity with a mixture of weight and lightness.
(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

2) No stickiness:
Hair styling was performed using each hair spray, and sensory evaluation was performed according to the following criteria for non-stickiness.
(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

3) Set holding power:
After hair styling using each hair spray, sensory evaluation was performed according to the following criteria for the set holding power after 6 hours in an environment of 25 ° C. and 90% Rh.
(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

4) Re-styling ability:
Hair styling was performed using each hair spray, and after 6 hours in an environment of 25 ° C. and 90% Rh, sensory evaluation was performed according to the following criteria for the hair styling power when hair was re-styled.
(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

  In each Example, the ease of making a hairstyle in which weight and lightness were mixed was good. Although the comparative examples have high evaluations depending on the items, the evaluations of the ease of making the hairstyle are all low and do not meet the object of the present invention.

Example 13, Comparative Example 11
According to a conventional method, a hair spray stock solution having the composition shown in Table 2 was prepared, and with LPG (0.25 MPa, 20 ° C.) as a propellant, the stock solution / propellant (weight ratio) = 60/40, and the following valves and buttons The provided aerosol container was filled. This hair spray was evaluated in the same manner as described above.
Valve: Stem diameter φ0.41mm, Housing diameter φ0.64mm x Vapor tap diameter φ0.41mm
Button: caliber φ0.46mm (MB, cape)
(Nippon Precision Valve)

Formulation Example 1
According to a conventional method, a hair spray stock solution having the following formulation was prepared, and the same aerosol container as in Example 1 was filled with DME as a propellant at a stock solution / propellant (mass ratio) = 50/50.
Stock solution composition (mass%)
Polyether polycarbonate 1 (Synthesis example 1) 6.9
Plus size L-2700 0.6
Purified water remaining

  The obtained hair spray was excellent in ease of making a hairstyle with a sense of unity, a mixture of weight and lightness, no stickiness, set holding power and re-styling power.

Formulation example 2
According to a conventional method, a hair cosmetic composition having the following formulation was prepared, sealed in a container, and used as a pump spray (using a Y-150 sprayer manufactured by Yoshino Kogyo).
Formulation composition (mass%)
Polyether polycarbonate 1 (Synthesis example 1) 3.5
Plus size L-2700 0.3
Purified water remaining

  The obtained pump spray was excellent in ease of making a hairstyle with a sense of unity, mixed in weight and lightness, non-stickiness, set holding power and re-styling power.

Claims (6)

It contains component (A) and at least one of components (B) and (C), the total content of components (B) and (C) is 0.05 to 5% by mass, and the content of component (A) And a total amount of components (B) and (C) is a mist-like hair styling agent having a mass ratio (A) / [(B) + (C)] of 1 to 100.
(A) Polyether polycarbonate having a structural unit represented by the general formula (1) 0.5 to 15% by mass

[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, n represents an average value of 5 to 1000, p represents an average value of 5 to 100, and (n × p) AO may be the same or different. ]
(B) Dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate copolymer
(C) A solvent having two or more hydroxyl groups, a molecular weight of 62 to 1,000, and liquid at 30 ° C   The atomized hair styling agent according to claim 1, wherein the content of the component (B) is 0.05 to 3% by mass.   The atomized hair styling agent according to claim 1, wherein the content of component (C) is 0.05 to 3% by mass.   Furthermore, the mist-like hairdressing agent in any one of Claims 1-3 which contains 0.5-20 mass% of anionic set polymers as a component (D).   It is an aerosol type, The mist-like hair styling agent in any one of Claims 1-4.   It is a non-aerosol type, The mist-like hairdressing agent in any one of Claims 1-4.