KR20090033414A - Aerosol type cosmetic hair preparations - Google Patents

Abstract

An aerosol type cosmetic hair preparation characterized in that a raw ethanol solution containing 0.1-15 mass% N-methacryloyloxyethyl-N,N-dimethylammonium alpha-N-methylcarboxybetaine/alkyl methacrylate copolymer and an aerosol propellant comprising a liquefied petroleum gas having an initial internal pressure as measured at 20°C of 0.15-0.2 MPa have been packed in such a mixing proportion that the raw ethanol solution/aerosol propellant ratio by mass is in the range of 40/60 to 50/50. Also provided is an aerosol type cosmetic hair preparation characterized in that a raw ethanol solution containing 0.1-15 mass% polyvinylcaprolactam and an aerosol propellant comprising a liquefied petroleum gas having an initial internal pressure as measured at 20°C of 0.15-0.2 MPa have been packed in such a mixing proportion that the raw ethanol solution/aerosol propellant ratio by mass is in the range of 40/60 to 50/50. Based on the results of a detailed investigation made again on behaviors of hair-spray users, the hair sprays which can be comfortably used are provided.

Description

Aerosol type hair cosmetics {AEROSOL TYPE COSMETIC HAIR PREPARATIONS}

The present invention relates to an aerosol type hair cosmetic. More specifically, the present invention relates to a hair setting spray that relieves the spraying force and adjusts it to an appropriate strength to improve the usability and solve the problems associated with it.

In the market demand of styling agents, hair sprays have always maintained a constant need and are an important hair cosmetic that does not depend on the fashion of the hair style.

In addition, one of the important factors of usability of hair spray is aerosol of injection, and various studies have been conducted.

For example, Patent Literature 1 further adds a compressed gas such as carbon dioxide gas to a liquefied gas of a propellant, fills a stock solution and a liquefied gas at a mass ratio of 95 to 5 to 75 to 25, and initial pressure is 0.2 to 0.5 MPa at 25 ° C. Hair sprays having good aerosols are described by adjusting with. However, the hair spray has a high mist strength, and the setting force and setting holding force in the case of blending the setting agent resin are unclear. Furthermore, since the mass ratio of the liquefied gas is small with respect to the stock solution, clogging of the aerosol is also concerned.

Patent Document 2 contains 0.05 to 10% by mass of a water-insoluble silicone compound, 1 to 60% by mass of lower alcohol, 3 to 50% by mass of water, and 25 to 90% by mass of propellant, thereby providing an aerosol having a smooth feel as a uniform dense aerosol. Spray compositions are described, and a mixture of liquefied petroleum gas and dimethyl ether or dimethyl ether is used alone as a propellant. However, the strength of the mist is unclear, and since the water is further blended, the setting force and the setting holding force are not satisfactory.

Patent Document 3 discloses a fumed hair cosmetic containing solid or paste oil, liquid oil, polymer compound having film-forming ability, nonionic surfactant, water, and propellant, and finely sprayed mist, and sticky to hair. It is described that there is no fluffing, exhibits good setting property and resetting property as a soft feel, and when the dimethyl ether is used as the propellant, the state of the mist at the time of ejection becomes particularly preferable. However, the strength of the mist is unclear, and since the water is further blended, the setting force and the setting holding force are not satisfactory.

Patent document 4 contains (A) 0.1-5 mass% of polyhydric alcohols, (B) methacrylic acid amphoteric resin or pyrrolidone type nonionic resin, and (C) 0.1-3 mass% of 2 or more types of liquid oils, Mass ratio (B) / (A) of (A) and component (B) exists in the range of 3-15, and the raw liquid whose quantity of water in a composition is 2 mass% or less using the propellant which consists of liquefied gas and dimethyl ether By mixing the mixed mass ratio in the range of 40/60 to 70/30 (stock solution) / (injector), an aerosol-type hair cosmetic composition having excellent high setting power and a calm feeling and not causing fraking or clogging is described. However, the intensity of the mist is unclear and the setting holding power is not satisfactory.

On the other hand, Patent Document 5 discloses an invention made mainly from the viewpoint of an aerosol spray container (outlet of an actuator) as a hairstyling aerosol spray for hairdressing.

Patent Document 1: Japanese Patent Application Laid-Open No. 2000-343007

Patent Document 2: Japanese Patent Application Laid-Open No. 2001-335426

Patent Document 3: Japanese Patent Laid-Open No. 2003-246712

Patent Document 4: Japanese Patent Application Laid-Open No. 2004-143092

Patent Document 5: Japanese Patent Application Laid-Open No. 10-236550

(Tasks to be solved by the invention)

In light of the importance of hair spray, the present inventors have fundamentally started to study what is convenient for a user. As a result of detailed observation and analysis of the user's hair spray behavior, the following facts were recognized.

(1) Many people use spray while pushing aerosol button little by little or soften the strength of mist without pressing to the full.

(2) Some people spray by hand guarding or turning their face to avoid spraying on the face.

(3) If the strength of the mist is reduced, there is a problem that the nozzle is clogged, especially when the setting agent resin is blended. In order to solve this by means of an aerosol container, when the blockage reduction button is employed, the spray sound is large and the intensity of the mist is sensed. Tends to be strong and not preferred by the user.

In view of the above, the hair spray tends to increase the intensity of the spray basically from the standpoint of densifying aerosols or preventing clogging of the nozzle, especially the hair setting spray when the setting resin is blended. It is strongly recognized that high intensity does not necessarily give a refreshing feeling. It is also a concern to the user that if the strength is too high, the set hairstyle will be broken.

In view of the foregoing, the present inventors have made a thorough study from the viewpoint of prescribing the contents separately from the viewpoint of the aerosol container to fundamentally review the user's preferences and to provide a hair spray which is really fresh to use. The invention has been completed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hair spray that makes the user feel really fresh to use, and has excellent aerosol quality while ensuring the strength of the mist that the user feels convenient to use, and also no problem of clogging of the nozzle, and hair It is to provide an aerosol-type hair cosmetic which has an excellent effect in terms of setting force and hair setting holding force.

(Means to solve the task)

That is, this invention is the ethanol stock solution containing 0.1-15 mass% of N-methacryloyloxyethyl N, N-dimethylammonium- (alpha) -N-methylcarboxy betaine methacrylic acid alkylester copolymer, and initial stage internal pressure. The aerosol propellant comprising 0.15 to 0.2 MPa liquefied petroleum gas at 20 ° C. is filled in a range where the mixed mass ratio of the ethanol stock solution and the aerosol propellant is ethanol stock solution / aerosol propellant = 40/60 to 50/50. It is to provide an aerosol-type hair cosmetic.

In addition, the present invention is a mixture of an ethanol stock solution and an aerosol spray agent comprising an ethanol stock solution containing 0.1 to 15 mass% of polyvinyl caprolactam and a liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 ° C. It is an object of the present invention to provide an aerosol-type hair cosmetic comprising a mass ratio of ethanol stock solution / aerosol propellant = 40/60 to 50/50.

Moreover, this invention provides the said aerosol-type hair cosmetics characterized by the said aerosol-type hair cosmetics being a hair setting spray.

(Effects of the Invention)

According to the present invention, there is provided an aerosol-type hair cosmetic that makes the user feel convenient to use.

That is, the aerosol quality is also excellent while maintaining the intensity of jetting (weakness of the intensity of the mist) that the user feels refreshing as an appropriate intensity. In addition, there is no problem that the nozzle is blocked by the setting agent resin. Moreover, it is also very excellent in terms of hair setting force and hair setting holding force, and despite the weak strength of mist, the fixing force of the hairstyle can satisfy the user sufficiently as before.

(The best mode for carrying out the invention)

Hereinafter, the present invention will be described in detail.

The N-methacryloyloxyethyl N, N-dimethylammonium- (alpha) -N-methylcarboxy betaine methacrylic acid alkylester copolymer used for this invention is a well-known acryl-type amphoteric polymer. This polymer is mix | blended as setting agent resin which has a film forming ability. As described in Patent Documents 1 to 4 described above, the setting agent resin to be blended into the aerosol-type hair cosmetic has a very large amount of polymer. In the present invention, however, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine-methacrylic acid alkylester copolymer is selectively used among many kinds of setting resins. Preferably, the alkyl ester portion of the methacrylic acid alkyl ester is a copolymer with C ₁₈ H ₃₇ (octadecyl ester). As a commercial item, RAM resin-4000 (Osaka Yuki Chemical Co., Ltd.) can be used preferably.

On the other hand, polyvinyl caprolactam used for 2nd this invention is a well-known nonionic resin, As a commercial item, Rubycol Plus (BASF Corporation) is preferable.

The compounding quantity of said setting agent resin is 0.1-15 mass% in the total amount of the undiluted | stock solution and propellant gas filled in an aerosol. If it is less than 0.1 mass%, the effects of the hair setting force and the hair setting holding force may not always be satisfactorily exhibited. Moreover, when it exceeds 15 mass%, the effect of this invention may not be exhibited satisfactorily in the point of clogging of a nozzle. Especially preferably, it is 0.5-10 mass% with respect to the whole stock solution filled in an aerosol. In addition, in the present invention, even if a temporary clogging phenomenon or an abnormality occurs in the spray pattern, it is revived while being sprayed.

The setting agent resin is usually blended into the stock solution as an ethanol solution. Ethanol is the main solvent of the stock solution, and in addition to blending as a setting agent resin solution, it may be blended separately.

Finally, the actual amount of the setting agent resin in the ethanol stock solution is preferably 5 to 10% by mass.

In addition, content of the ethanol in the stock solution used for this invention can be adjusted to 60-99.9 mass% normally with respect to whole stock solution. Preferably it is 70-80.0 mass%.

In the stock solution used in the present invention, components which can be generally formulated into hair cosmetics, such as silicone-based, hydrocarbon-based and ester-based oils, surfactants, etc., may be used as long as the effects of the present invention other than the setting agent resin and ethanol are not impaired according to the purpose of the product. , Water-soluble polymers, chelating agents, antioxidants, ultraviolet absorbers, preservatives, drugs such as vitamins, hormones and the like can be added.

In addition, it is possible to add other setting agent resins other than the said essential component in the range which does not impair the effect of this invention.

The aerosol propellant used for this invention is liquefied petroleum gas whose initial internal pressure is 0.15-0.2 Mpa in 20 degreeC. Preferably, initial stage internal pressure is 0.15-0.18 Mpa at 20 degreeC. The liquefied petroleum gas whose initial internal pressure is 0.15-0.2 MPa at 20 degreeC can be adjusted to arbitrary initial internal pressures by changing the composition of liquefied petroleum gas.

In conventional aerosol sprays, the initial internal pressure of the propellant is generally about 0.25 to 0.4 MPa at 20 ° C. in order to secure injection stability and aerosol, whereas the initial internal pressure in the present invention is a very different requirement. In addition, the injection amount according to the initial internal pressure of the present invention maintains a substantially constant value regardless of the use rate even at a low temperature of about 5 ℃, and exhibits a remarkable effect of maintaining a substantially constant stable injection amount until the end.

The filling amount of the liquefied petroleum gas is 50 to 60 mass% in the total amount of the raw liquid and the propellant gas. The mixed mass ratio of the ethanol stock solution to the aerosol can and the aerosol propellant is ethanol stock solution / aerosol propellant = 40/60 to 50/50, and the mixed mass ratio results in the strength of the mist, the setting force, and the adhesion to the hair. In particular, excellent effect is exhibited.

The aerosol-type hair cosmetic of the present invention is produced by a conventional method by sealing the above-mentioned components in an aerosol can, and is commercialized as a hair spray. In particular, it is preferable to mix | blend a setting resin with 0.5 mass% or more with respect to whole liquid solution, and to commercialize as a hair setting spray for hairdressing.

Hereinafter, an Example and a comparative example are given and this invention is demonstrated further more concretely. The present invention is not limited by these examples. The compounding quantity is all mass%.

The hair spray stock solution was prepared according to the formulation formulation shown in "Table 1". The stock solution was filled into an aerosol can and a valve was made. Next, predetermined liquefied petroleum gas was filled to obtain a hair spray.

Using these as samples, the jetting property (fuel strength), aerosol quality (fineness, uniformity), setting force, setting holding force, and clogging were evaluated according to the following evaluation criteria. The results are shown in "Table 1".

(1) Sprayability (the intensity of haze)

Sensory evaluation of the intensity of the mist of the hair spray application process was carried out by ten professional panels.

<Evaluation Criteria>

(Double-circle): 9-10 professional panelists evaluated that the intensity of fumes was weak.

(Circle): The number of the professional panels which evaluated that the intensity of fumes was weak is 6-8.

(Triangle | delta): The number of the specialty panels which evaluated that the intensity | strength of the mist was weak is 3-5 people.

X: The number of professional panels which evaluated that the intensity | strength of mist was weak is two or less.

(2) Aerosol (density, uniformity)

Sensory evaluation of the aerosol of the hair spray application process was carried out by ten professional panels.

<Evaluation Criteria>

(Double-circle): 9-10 professional panelists which evaluated that aerosol was favorable.

(Circle): The number of the specialized panels which evaluated that aerosol was favorable is 6-8 people.

(Triangle | delta): The number of the specialized panels which evaluated that aerosol was favorable are 3-5 people.

X: The number of the specialized panels which evaluated that aerosol was favorable is two or less.

(3) setting force

The hair setting force was evaluated by the sensory test by the hair bundle.

Experimental Method

0.5g of a sample was applied to a hair bundle using 3g (length 16cm) made of Beaulux black hair as a hair, and the hair bundle after drying at room temperature was subjected to a sensory test by a professional panel of 10 women, and to the hair setting power. Evaluated. Evaluation evaluated each person based on the following evaluation point reference | standard, summed the score of ten people, and evaluated each sample by the following evaluation criteria.

<Score Standards>

5 points | pieces: It is suitable as a hair setting force.

4 points | pieces: It is suitable as a hair setting force.

3 points | pieces: It is normal as a hair setting force.

2 points | pieces: It is not suitable as hair setting force.

1 point | piece: It is not suitable as hair setting force.

<Evaluation Criteria>

(Double-circle): A total score is 40 points or more.

(Circle): A total point is 30 or more and less than 40 points.

(Triangle | delta): A total point is 20 or more and less than 30 points.

X: The total point is less than 20 points.

(4) setting holding power

Curl retention under high humidity was evaluated for hair setting retention.

Experimental Method

As a hair, the black healthy hair made from Viewux was adjusted to a hair bundle of 15 cm in length and 1 g in weight, and immersed in the sample for 15 minutes, and then curled in a rod of 2 cm in diameter to form curls, followed by drying at 50 ° C. for 1 and a half hours. Then, after 1 hour of purification at room temperature, the rod was removed, only the hair bundle was removed, and the curl holding force was measured after maintaining for 3 hours in an environment of 25 ° C and 90% humidity.

At this time, the length of the hair | bristle bundle immediately after removing a curl was called Lo, and the length of the hair | bristle bundle after n hours was Ln, and the curl holding force was computed by following Formula. In addition, this experiment was repeated 4 times and the average value of 4 times was calculated | required.

Curl Retention (%) = {(15-Ln) / (15-Lo)} × 100

<Evaluation Criteria>

◎: 80% or more curl holding power

○: 50% or more curl retention less than 80%

△: curl holding power is 30% or more but less than 50%

×: curl retention less than 30%

(5) clogging phenomenon

After 20 samples of each of Examples and Comparative Examples were left at 40 ° C for 24 hours, they were left at 5 ° C for 24 hours and then sprayed for 10 seconds. (Circle) and the case where even one of the blockage | occurrence | production did not generate | occur | produce until it used up and the clogging phenomenon (the state which content is not ejected even if an actuator is pressed) did not arise was determined as x.

* 1: RAM Resin-4000 (Osaka Yuki Kagaku Kogyo Co., Ltd.)

* 2: Ruby Call Plus (BASF)

* 3: plus size L9948B (Koogaku Kabushi Kaisha)

From the above results, the embodiment of the present invention is excellent in all aspects of sprayability (fuel strength), aerosol (density, uniformity), setting force, setting holding force, and clogging, and the user is satisfied with all points to spray very refreshingly. It can be seen that the hair setting spray can be.

Other examples of the present invention will be given below. All are hair sprays that have excellent effects in all aspects of spraying (fuel strength), aerosol (density, uniformity), setting force, setting holding force, and clogging.

"Example 5: Haze-type hair setting spray"

<Prescription solution>

Polyoxyethylene oleyl ether (5EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

RAM Resin-4000 20 (Actual Weight 6)

Ethanol Remaining (Total 100% by Mass)

40 mass% of the said undiluted | stock solution and 60 mass% of liquefied petroleum gas (0.20 Mpa at 20 degreeC) are filled in an aerosol can by a conventional method, and a mist type hair setting spray is obtained.

"Example 6: Haze-type Hair Setting Spray"

<Prescription solution>

Polyoxyethylene oleyl ether (5EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

RAM Resin-4000 20 (Actual Weight 6)

Ethanol Remaining (Total 100% by Mass)

45 mass% of the stock solution and 55 mass% of liquefied petroleum gas (0.18 MPa at 20 ° C.) are charged to an aerosol can by a conventional method to obtain a mist-forming hair setting spray.

"Example 7: Fuming Hair Setting Spray"

<Prescription solution>

Polyoxyethylene oleyl ether (5EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

Ruby Call Plus 35 (Actual 14)

Ethanol Remaining (Total 100% by Mass)

50 mass% of the stock solution and 50 mass% of liquefied petroleum gas (0.20 MPa at 20 ° C.) are filled in an aerosol can by a conventional method to obtain a mist-type hair setting spray.

Example 8 Haze-type Hair Setting Spray

<Prescription solution>

Polyoxyethylene oleyl ether (5EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

Ruby Call Plus 15 (6 servings)

Ethanol Remaining (Total 100% by Mass)

40 mass% of the said undiluted | stock solution and 60 mass% of liquefied petroleum gas (0.15 Mpa at 20 degreeC) are filled in an aerosol can by a conventional method, and a mist type hair setting spray is obtained.

Example 9 Atomized Hair Setting Spray

<Prescription solution>

PCA Dimethicone 0.1

MONASIL PCA (Uniquimas, Inc.)

Stearyl Modified Acrylic Silicone 0.1

KP561P (manufactured by Shin-Etsu Chemical Co., Ltd.)

RAM Resin-4000 20 (Actual Weight 6)

Chestnut Rose Extract (Rosa roxburghii) 0.01

Ethanol Remaining (Total 100% by Mass)

40 mass% of the said undiluted | stock solution and 60 mass% of liquefied petroleum gas (0.18 Mpa at 20 degreeC) are filled in an aerosol can by a conventional method, and a mist type hair setting spray is obtained.

"Example 10: Haze-type Hair Setting Spray"

<Prescription solution>

RAM Resin-4000 20 (Actual Weight 6)

Ruby Call Plus 10 (Actual Weight 4)

Ethanol Remaining (Total 100% by Mass)

40 mass% of the said undiluted | stock solution and 60 mass% of liquefied petroleum gas (0.15 Mpa at 20 degreeC) are filled in an aerosol can by a conventional method, and a mist type hair setting spray is obtained.

"Example 11: Fuming Hair Setting Spray"

<Prescription solution>

RAM Resin-4000 20 (Actual Weight 6)

Sugar Cane Extract 0.01

Oil Soluble Plant Protein 0.01

POE (9) POP (2) dimethyl ether 0.1

Spices 0.03

Ethanol Remaining (Total 100% by Mass)

40 mass% of the said undiluted | stock solution and 60 mass% of liquefied petroleum gas (0.15 Mpa at 20 degreeC) are filled in an aerosol can by a conventional method, and a mist type hair setting spray is obtained.

According to the present invention, while maintaining the strength of spraying (weak the strength of the mist) excellent in the aerosol, it is also possible to solve the clogging phenomenon of the nozzle by the setting agent resin, despite the weak strength of the hair, the point of the fixing force of the hairstyle It is possible to provide a hair spray that can be sufficiently satisfied and that can make the user feel convenient and fresh to use.

Claims (3)

The ethanol stock solution containing 0.1-15 mass% of N-methacryloyloxyethyl N, N-dimethylammonium (alpha) -N-methylcarboxy betaine-methacrylic-acid alkylester copolymer, and initial stage internal pressure are 0.15-1 at 20 degreeC. An aerosol-type hair cosmetic composition comprising an aerosol propellant consisting of 0.2 MPa liquefied petroleum gas in a range in which the mixed mass ratio of the ethanol stock solution and the aerosol propellant is ethanol stock solution / aerosol propellant = 40/60 to 50/50. . The mixed mass ratio of the ethanol stock solution and aerosol propellant is an aerosol propellant composed of an ethanol stock solution containing 0.1 to 15 mass% of polyvinyl caprolactam and a liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 ° C. An aerosol-type hair cosmetic material which is filled in the range of propellant = 40 / 60-50 / 50. The aerosol-type hair cosmetic according to claim 1 or 2, wherein the aerosol-type hair cosmetic is a hair setting spray.