JP2013170132A - Aerosol spray cosmetic for hair styling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol spray cosmetic for hair styling, hardly causing precipitation of a resin for fixing the hair in an undiluted solution even in a system containing a large amount of water, enabling the content to be sprayed in a mist shape without foaming the content, imparting sufficient hair-styling power, and enabling a hair style to be made.SOLUTION: This aerosol spray cosmetic for hair styling is obtained by formulating an undiluted solution part containing (A) an anionic film-forming polymer at least containing one or more kinds selected from the group consisting of acrylic acid, methacrylic acid and isophthalic acid as constituent components, (B) water and (C) ethanol, with a propellant part comprising dimethyl ether in a mass ratio of the undiluted solution part to the propellant part regulated so as to be =40/60 to 60/40. The contents of the components (A) and (B) are regulated so as to be 6-15 mass% and 51-83 mass% respectively, and the content of the component (C) is regulated so as to be 10-40 mass% based on 100 mass% of the undiluted solution part.

Description

  The present invention relates to an aerosol spray cosmetic for hairdressing.

  Conventional aerosol spray cosmetics for hairdressing use ethanol as the main solvent, blend liquefied petroleum gas (LPG) into the propellant, and are mainly sprayed and applied in the form of a mist. Most of them fix fixed hairstyles. Therefore, many of the aerosol spray cosmetics for hairdressing that contain a large amount of ethanol cannot be built into the hairstyle because the drying speed after application is fast and the agent hardens before preparing the hairstyle. It is.

  On the other hand, as a product form to be applied by spraying, there is a non-aerosol type mist hairdressing cosmetic. Mist hairdressing cosmetics use a lot of water as a main solvent, and since the drying speed after application is slow, hairstyles can be made. However, non-aerosol type mist hairdressing cosmetics containing a large amount of water have a problem that the fog is rough and cannot be applied uniformly, resulting in unevenness and inferior use feeling.

  In the past, attempts have been made to reduce the blending amount of ethanol and increase the water content in aerosol spray cosmetics for hairdressing. Specifically, an aerosol spray for hairdressing containing 1 to 50% by weight of ethanol, 0.05 to 5% by weight of a polymer compound for hair fixing, a hairdressing agent stock solution containing water and a propellant composed of dimethyl ether in a specific ratio. Product (for example, see Patent Document 1), hair-styling resin, aerosol hair-styling composition comprising water and dimethyl ether (for example, see Patent Document 2), specific amount of water / alcohol, hair fixing polymer and dimethyl ether Hair cosmetics (for example, see Patent Document 3), hair cosmetics composed of a specific amount of water / alcohol, a film-forming polymer and dimethyl ether (for example, see Patent Document 4) have been proposed.

  However, in the above trial, although it is possible to obtain a spray dosage form with increased water content, there is a problem that it is not possible to add an amount of hair fixing resin capable of imparting sufficient hair-styling power. On the other hand, in the above test, a means for increasing the amount of the hair fixing resin in order to give sufficient hair styling power can be considered, but since the main solvent is water, the hair fixing resin is precipitated and clogging occurs. There is a problem that it occurs, and there is a problem that the viscosity of the undiluted solution increases and it is not sprayed in the form of a mist.

  Furthermore, even if it is sprayed, an event such as foaming of the spray occurs, which not only deteriorates the feeling of use, but also loses the advantage that it can be applied uniformly and thinly, which is unique to aerosol spray cosmetics. There is a problem. Further, since bubbles remain at the injection port, there is a problem that an injection abnormality is likely to occur.

  Although these problems can be solved by increasing the amount of ethanol, the above-mentioned attempts have the same specifications as conventional aerosol spray cosmetics for hair styling, and there is a problem that a hairstyle cannot be created.

JP-A-9-124449 Japanese Patent Laid-Open No. 3-112918 Japanese Patent Laid-Open No. 11-92345 Japanese Patent Laid-Open No. 11-92346

  The present invention has been made in view of the prior art, and even in a system containing a large amount of water, there is no precipitation of the hair fixing resin in the stock solution, and the mist is formed without foaming the contents. It is an object of the present invention to provide an aerosol spray cosmetic for hairdressing that can be sprayed as a hairdressing agent, can impart sufficient hairstyling power, and can create a hairstyle.

That is, the present invention
[1] Contains (A) an anionic film-forming polymer containing at least one or more selected from acrylic acid, methacrylic acid and isophthalic acid as constituents, (B) water, and (C) ethanol Aerosol spray cosmetic for hair styling, in which a stock solution part and a propellant part made of dimethyl ether are blended in a mass ratio of stock solution part / propellant part = 40/60 to 60/40 and sprayed in the form of a mist Because
In 100% by mass of the stock solution part, the content of the component (A) is 6 to 15% by mass, the content of the component (B) is 51 to 83% by mass, and the content of the component (C) Aerosol spray cosmetic for hairdressing, wherein 10 to 40% by weight,
[2] The aerosol spray cosmetic for hairdressing according to the above [1], wherein the stock solution part further contains (D) at least one selected from polyhydric alcohol and sugar alcohol, and [3] non The aerosol spray cosmetic for hairdressing according to [1] or [2], which is foaming.

  The aerosol spray cosmetic for hairdressing of the present invention is free from precipitation of the hair fixing resin in the stock solution and white turbidity caused by the hair fixing resin even in a system in which a large amount of water is blended, and without clogging. While being able to discharge, there exists an effect that it can eject as a mist form without making the contents foam. In addition, the aerosol spray cosmetic for hairdressing of the present invention does not quickly dry, so it can be made into a desired hairstyle, and since a hair fixing resin can be highly blended, it can impart sufficient hairstyling power. There is an effect that can be done.

  The aerosol spray cosmetic for hairdressing of the present invention comprises (A) an anionic film-forming polymer containing at least one or more selected from acrylic acid, methacrylic acid and isophthalic acid as a constituent component, (B) water And (C) A stock solution part containing ethanol and a propellant part made of dimethyl ether are blended at a mass ratio of stock solution part / propellant part = 40/60 to 60/40 and sprayed in a mist form. It becomes.

  The stock solution part of the aerosol spray cosmetic for hairdressing of the present invention will be described. In the present invention, an anionic film-forming polymer containing at least one or more selected from the acrylic acid, methacrylic acid and isophthalic acid of the component (A) is used as the hair fixing resin. .

  As the anionic film-forming polymer containing at least one or more selected from among the acrylic acid, methacrylic acid and isophthalic acid as the component (A), as long as excellent hair styling ability can be imparted, It is not limited. In the present invention, the sodium salt of the component (A) (hereinafter abbreviated as Na), ammonium salt, triethanolamine salt, 2-amino-2-methyl-1-propanol salt (hereinafter abbreviated as AMP), 2- It may be an amino-2-methyl-1,3-propanediol salt (hereinafter abbreviated as AMPD).

  Specific examples of (A) include, for example, alkyl acrylate copolymer, alkyl acrylate copolymer AMP, alkyl acrylate copolymer Na, alkyl acrylate copolymer ammonium, acrylic acid / alkyl acrylate copolymer, (alkyl acrylate / diacetone acrylamide). ) Copolymer, (alkyl acrylate / diacetone acrylamide) copolymer AMP, (alkyl acrylate / diacetone acrylamide) copolymer AMPD, (hydroxyethyl acrylate / methoxyethyl acrylate) copolymer, (hydroxyethyl acrylate / butyl acrylate / Methoxyethyl acrylate) copolymer, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP (Alkyl acrylate / octylacrylamide) copolymer, (acrylates / t-butylacrylamide) copolymer, acrylates copolymer, acrylates copolymer AMP, acrylates copolymer Na, (vinyl acetate / butyl maleate / isoborolyl acrylate) copolymer, (styrene) / Alkyl acrylate) copolymer, (styrene / acrylates) copolymer, (styrene / acrylic acid amide) copolymer, polyurethane-1 (INCI (International Cosmetic Ingredient Dictionary and Handbook, 13th edition, volume 2, CTFA, 2010) p. 2411-2412): isophthalic acid, adipic acid, f, represented by POLYURETANE-1. Copolymer consisting of silylene glycol, neopentyl glycol, dimethylolpropionic acid and isophorone diisocyanate), polyacrylate-22 (INCI name (International Cosmetic Ingredient Dictionary and Handbook, 13th edition, Volume 2, CTFA, 2010) p.2314): The isocyanate group of a copolymer of adipic acid and neopentyl glycol and isophorone diisocyanate represented by POLYACRYLATE-22 is reacted with hydroxyethyl methacrylate, and then ethanol is added to the residue. It is obtained by removing urethane group and finally copolymerizing with acrylic acid, methacrylic acid and methyl methacrylate and partially neutralizing with aminomethylpropanol. Ones) and the like can be exemplified. These (A) components may be used individually by 1 type, and can also be used in combination of 2 or more type as appropriate.

  In the present invention, from the viewpoint of spraying as a mist and imparting excellent hair-styling power, among the components (A) described above, alkyl acrylate copolymer, alkyl acrylate copolymer AMP, alkyl acrylate copolymer Na, Ammonium acrylate copolymer ammonium, (alkyl acrylate / diacetone acrylamide) copolymer, (alkyl acrylate / diacetone acrylamide) copolymer AMP, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide ) Copolymer AMP, (alkyl acrylate / octyl acrylamide) copolymer, acrylate copolymer, polyurethane-1, polyacrylate-22 are preferably used. Among these preferable components (A), it is most preferable to use an anionic film-forming polymer that does not cause precipitation or turbidity in the following solubility test.

<Solubility test>
In 100% by mass of an aqueous solution with a content ratio of ethanol: water = 1: 4, 9% by mass as a pure polymer is contained, and the solubility at the time of adjusting to pH 6 to 7 with citric acid (presence of precipitation or Visually check for turbidity.

  The most preferable component (A) includes (alkyl acrylate / diacetone acrylamide) copolymer AMP, (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP, and polyacrylate-22. It is done. By using the most preferable component (A), even in a system in which a large amount of water as the component (B) described later is blended, there is no precipitation of the stock solution, and the contents are injected as a mist without foaming. Will be able to.

  In addition, a commercial item can also be used for the anionic film formation polymer of (A) component as it is. Commercially available products of (alkyl acrylate / diacetone acrylamide) copolymer AMP include, for example, plus size L-6330 (trade name, manufactured by Kyoyo Chemical Co., Ltd.), (acrylates / alkyl acrylate (C1-18) / alkyl (C1- 8) Acrylamide) As a commercial product of copolymer AMP, for example, Plus Size L-6740B (trade name, manufactured by Kyoyo Chemical Co., Ltd.) can be exemplified. As a commercial item of polyacrylate-22, LUVSet shape (trade name, manufactured by BASF Japan Ltd.) and the like can be exemplified.

  (A) Content of a component is 6 mass% or more in 100 mass% of stock solution parts from a viewpoint of providing sufficient hair-styling power. Moreover, it is 15 mass% or less from a viewpoint of spraying as a mist form and a viewpoint of clogging prevention. From these viewpoints, the content of the component (A) is 6 to 15% by mass.

  The water used as component (B) is not particularly limited as long as it is usually used in cosmetics, and purified water, ion-exchanged water and the like are usually used. The content of the component (B) is 51% by mass or more in 100% by mass of the stock solution part from the viewpoint of suppressing rapid drying and making it into a desired hairstyle. Moreover, it is 83 mass% or less from a soluble viewpoint with a propellant or a film formation polymer. From these viewpoints, the content of the component (B) is 51 to 83% by mass.

  The ethanol used as component (C) is not particularly limited as long as it is usually used in cosmetics. (C) Content of a component is 10 mass% or more in 100 mass% of stock solutions part from a soluble viewpoint with a propellant or a film formation polymer. Moreover, it is 40 mass% or less from a viewpoint of suppressing quick drying. From these viewpoints, the content of the component (B) is 10 to 40% by mass.

  In addition, the stock solution part of the aerosol spray cosmetic for hairdressing of the present invention is selected from (D) polyhydric alcohol and sugar alcohol from the viewpoint of enhancing the feeling of use and making the hairstyle better. At least one selected from the group consisting of

  Examples of the polyhydric alcohol used include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, glycerin, diglycerin, polyglycerin, Examples include 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, and the like.

  Examples of the sugar alcohol to be used include sorbitol, xylitol, maltitol, mannitol, erythritol, arabitol, ribitol, galactitol, glucitol, erythritol and the like.

  The content of the component (D) is preferably 0.1% by mass or more, more preferably 1% by mass in 100% by mass of the stock solution part, from the viewpoint of enhancing the feeling of use and improving the hair style. % Or more. Moreover, it is preferable that it is 10 mass% or less from a viewpoint which suppresses the viscosity of stock solution and injects with a fine fog, More preferably, it is 5 mass% or less. From these viewpoints, the content of the component (D) is 0.1 to 10% by mass, and preferably 1 to 5% by mass.

  Moreover, in the stock solution part of the aerosol spray cosmetic for hairdressing, in addition to the above-described components, components usually used in cosmetics, for example, hydrocarbon oils such as camellia oil and liquid paraffin, as long as the effects of the present invention are not impaired. Higher alcohols such as cetyl alcohol and isostearyl alcohol; ester oils such as cetyl isooctanoate and isopropyl palmitate; silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane and polyether-modified silicone; preservatives, antioxidants, UV absorption An agent, a plant extract, a powder, a pH adjuster, and the like can be appropriately blended depending on the purpose.

  Next, the propellant part of the aerosol spray cosmetic for hairdressing of the present invention will be described.

  For the propellant part, dimethyl ether which is water-soluble is used. By using dimethyl ether as the propellant part, even a stock solution part having a high content of water as the component (B) can be uniformly mixed and sprayed in the form of a mist.

  In addition, the mixing ratio of the stock solution part and the propellant part (stock solution part / propellant part) in the aerosol spray cosmetic for hairdressing of the present invention is 40 from the viewpoint of being sprayed as a fine mist and preventing clogging. / 60 to 60/40.

  The aerosol spray cosmetic for hairdressing of the present invention can spray the contents as a mist without foaming by adopting the above-described configuration, even though a large amount of water is blended in the stock solution part. In addition, since the hair-styling imparting component can be highly blended, sufficient hair-styling power can be imparted. In the present invention, “foaming” means foaming at the time of jetting, or foaming after adhering (post-foaming), and “without foaming” means that no foaming occurs at the time of jetting, or , Means non-foaming after adhesion, meaning non-foaming.

  In order to produce the aerosol spray cosmetic for hairdressing of the present invention, it may be produced by a known method. For example, an aerosol container is filled with a solution in which each component to be blended in the stock solution is uniformly dispersed, and an aerosol valve is prepared. After the container is clinched, a manufacturing method in which dimethyl ether, which is a propellant, is pressure-filled from the stem into the container by a specified amount and a spray button suitable for the spray state is attached can be exemplified.

  The internal pressure of the aerosol container of the aerosol spray cosmetic for hairdressing can be adjusted as appropriate depending on the filling amount of the propellant, and is not particularly limited as long as it is adjusted to a pressure that sufficiently imparts the desired effect. From the viewpoint of spraying as a shape, it is preferably adjusted within a range satisfying 0.30 to 0.65 MPa at 25 ° C., more preferably 0.40 to 0.60 MPa.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by mass” unless otherwise specified.

In the examples and comparative examples, the following film-forming polymers were used. Moreover, the compounding quantity of each film formation polymer in a table | surface was converted into the pure part.
Film-forming polymer (1): (alkyl acrylate / diacetone acrylamide) copolymer AMP (“Plus Size L-6330” manufactured by Kyoyo Chemical Co., Ltd., 30% by mass)
Film-forming polymer (2): (Acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP (“Plus Size L-6740B” manufactured by Kyoyo Chemical Co., Ltd., 40% by mass)
Film-forming polymer (3): Polyacrylate-22 (BASF Japan “LUVISet shape”, pure content 34% by mass)
Film-forming polymer (4): (vinyl methyl ether / ethyl maleate) copolymer (“GANTREZ ES-225” manufactured by ASP Japan Co., Ltd., 50% by mass)
Film-forming polymer (5): (vinyl acetate / crotonic acid / vinyl neodecanoate) copolymer (“RESYN 28-2930” manufactured by Akzo Nobel Co., Ltd., 100% by mass)
Film-forming polymer (6): Polyvinylpyrrolidone (Daiichi Kogyo Seiyaku Co., Ltd. “Crease K-90”, 100% by mass pure)
Film-forming polymer (7): Vinyl pyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate (manufactured by Osaka Organic Chemical Industry Co., Ltd. “HC polymer 1N, pure content 20% by mass”)
Film-forming polymer (8): methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer (“Yuka Former 104D” manufactured by Mitsubishi Chemical Co., Ltd., 30% by mass)

(Sample preparation 1)
According to the composition described in Tables 1 to 3, the stock solution was prepared according to a conventional method and filled into a pressure-resistant glass container for aerosol. Next, after the aerosol valve was clinched in the container, the propellant was filled from the stem to prepare the aerosol spray cosmetics for hair styling of Examples 1 to 9 and Comparative Examples 1 to 17, and the following evaluation (Test Example 1) It was used for. The results are shown in Tables 1-3.

(Test Example 1: Evaluation of solubility)
Each sample of the examples and comparative examples was mixed well with the propellant by shaking up and down for 15 seconds. Subsequently, it was left to stand for 1 minute, and the state of the stock solution was visually evaluated according to the following evaluation criteria.

<Evaluation criteria for solubility>
○: Precipitation or turbidity is not observed ×: Precipitation or turbidity is observed

(Sample preparation 2)
According to the composition described in Tables 1 to 3, the stock solution was prepared according to a conventional method and filled into an aerosol container. Next, the aerosol valve (stem hole diameter: 0.45 mm, housing hole diameter (lower hole: 0.65 mm, lateral hole diameter: 0.65 mm)) was clinched in the container, and then the propellant was filled from the stem. And each aerosol spray cosmetic for hairdressing of Comparative Examples 1 to 17 was prepared and subjected to the following evaluation (Test Examples 2 to 5.) The results are shown in Tables 1 to 3.

(Test Example 2: Evaluation of “injection state” and “foaming”)
Each sample of the example and the comparative example was stored in a thermostat at 5 ° C. for 1 hour. Next, each sample was taken out from the thermostat and immediately shaken up and down for 15 seconds, and then sprayed on a paper towel from a distance of 10 cm for 2 seconds. The state at the time of jetting and the presence or absence of foaming on the paper towel were visually evaluated according to the following evaluation criteria.

<Evaluation criteria for injection state>
○: Injected in fine mist Δ: Injected in slightly coarse mist ×: Injected in mist

<Evaluation criteria for foaming>
○: No foaming is observed Δ: Foaming is performed for a moment, but the foam disappears immediately ×: Foaming remains as a foam

(Test Example 3: Evaluation of clogging)
Each sample of each example and each comparative example was stored in a 5 ° C. constant temperature bath, and the following operation was repeated every day to conduct a confirmation test on the injection state.

(operation)
Each sample was taken out from the thermostatic bath, immediately shaken up and down for 15 seconds, and sprayed for 5 seconds. After the injection, the temperature was returned to the incubator and the same test was conducted the next day. This operation was repeated until the stock solution disappeared completely or until the stock solution was not ejected due to clogging, and the state was evaluated according to the following criteria.

<Evaluation criteria for clogging>
○: No abnormality is observed in the injection state (discharge state) within the observation period Δ: The injection state (discharge state) becomes slightly weaker during the observation period, and the injection amount (discharge amount) decreases ×: Within the observation period No injection (discharge)

(Test Example 4: Making a hairstyle)
Using 20 sensuality evaluation panels, each sample of Examples and Comparative Examples was spray-applied using a wig (Lesson Mannequin: made by Eucalyptus Japan Co., Ltd.), and the hair was adjusted to the desired hairstyle (make-up) ) Sensory evaluation was performed according to the following evaluation criteria for “easy to make hairstyle” at the time of hairdressing. The evaluation was performed under constant conditions of constant temperature and humidity of 23 ° C. and humidity of 60%.

<Evaluation criteria for making hairstyles>
◎: 16 or more of 20 people answered that they do not quickly dry, so they can make the hairstyle they want. ○: 11 to 15 of 20 people do not quickly dry. △: 6-10 out of 20 people don't dry quickly, so they can make up the hairstyle they want ×: 5 or less out of 20 people don't dry quickly Answered that they can make the hairstyle they want

(Test Example 5: Hair styling ability)
One hour after the evaluation of Test Example 4, the 20 evaluation panels were allowed to see the hairstyles they had applied, and the “hairstyling power” was visually evaluated according to the following evaluation criteria.

  In addition, evaluation of "hair-styling ability" evaluated the thing which the shape of the applied hairstyle continued as high hair-styling power.

<Evaluation criteria for hair styling power>
◎: More than 16 out of 20 responded that their hair styling ability is high ○: 11-15 out of 20 replies that their hair styling ability is high △: 6-10 out of 20 replies that their hair styling ability is high ×: 5 or less out of 20 responded that their hair styling ability is high

  From the results shown in Tables 1 to 3, the aerosol spray cosmetics for hair styling of Examples 1 to 9 are precipitated in the hair fixing resin when the propellant is mixed even in a system containing a large amount of water. It can be seen that there is no white turbidity caused by the resin for fixing hair and hair, it can be sprayed in a fine mist without clogging, and it does not foam. In addition, since it does not dry quickly, it can be made into a desired hair style, and a high amount of hair fixing resin can be blended, so that it can be seen that sufficient hair styling power can be imparted.

  On the other hand, in Comparative Examples 1-8 which do not satisfy the structure of this invention, it turns out that the effect of this invention cannot fully be exhibited. Moreover, in Comparative Examples 9-10 which do not contain water, although it is excellent in hairdressing power like the conventional aerosol spray cosmetics for hairdressing, since the drying speed after application | coating is quick, it is made into the desired hairstyle. It turns out that is not possible. Furthermore, Comparative Examples 11 to 12 containing no ethanol did not hold as preparations and could not be evaluated at all.

  Further, Comparative Examples 13 to 13 in which the component (A) of the present invention was replaced with an anionic film-forming polymer, a nonionic film-forming polymer, a cationic film-forming polymer, and an amphoteric film-forming polymer other than the component (A). No. 17 cannot be sprayed in the form of a fine mist, and even if it can be sprayed in the form of a mist, clogging occurs. Furthermore, in a system in which a large amount of water is blended, sufficient hair styling is achieved. It can be seen that it is something that cannot exert its power.

Claims (3)

(A) It contains an anionic film-forming polymer containing at least one or more selected from acrylic acid, methacrylic acid and isophthalic acid as constituent components, (B) water, and (C) ethanol. An aerosol spray cosmetic for hair styling, in which an undiluted solution part and a propellant part composed of dimethyl ether are blended at a mass ratio of undiluted solution part / propellant part = 40/60 to 60/40 and are sprayed in a mist form ,
In 100% by mass of the stock solution part, the content of the component (A) is 6 to 15% by mass, the content of the component (B) is 51 to 83% by mass, and the content of the component (C) Aerosol spray cosmetic for hair styling, wherein is 10 to 40% by mass.   The aerosol spray cosmetic for hairdressing according to claim 1, wherein the stock solution part further contains (D) at least one selected from a polyhydric alcohol and a sugar alcohol.   The aerosol spray cosmetic for hairdressing according to claim 1 or 2, which is non-foaming.