TWI388340B - Gas-type hair cosmetics - Google Patents

Description

Gum type hair cosmetics

The present invention relates to a gas gel type hair cosmetic. More specifically, it relates to a hair styling spray which is easy to use by making the ejection force moderate and adjusted to a moderate impulse, and can solve the problem accompanying it.

In terms of the market demand for styling agents, hair sprays usually have a certain demand, and are an important hair cosmetic that is not affected by hair style.

One of the important elements of the use of hair spray is the spray of mist, and various studies are currently underway.

For example, Patent Document 1 describes a hair spray in which a compressed gas such as carbon dioxide gas is further added to a liquefied gas of a propellant, and a stock solution and a liquefied gas are filled at a mass ratio of 95:5 to 75:25, and the initial internal pressure is adjusted to 25 ° C 0.2 ~ 0.5MPa and has a good fog. However, the hair spray has a strong spray force, and the setting force and the setting retention force when the setting agent resin is blended are not obvious, and the mass ratio of the liquefied gas is less than that of the original liquid, so there is also a concern that the gas gel is blocked.

Patent Document 2 describes a gas gel spray composition comprising 0.05 to 10% by mass of a water-insoluble anthrone compound, 1 to 60% by mass of a lower alcohol, 3 to 50% by mass of water, and 25 to 90% by mass of a propellant. It has a uniform and fine mist and smooth touch; the propellant uses a mixture of liquefied petroleum gas and dimethyl ether or dimethyl ether alone. However, the spray momentum is not obvious, and it is matched with water, so the setting force and the shaping retention force cannot meet the demand.

Patent Document 3 describes a mist-like hair cosmetic comprising a solid shape or a paste-like oil component, a liquid oil component, a polymer compound having a film forming ability, a nonionic surfactant, water, and a propellant, which are sprayed. The mist is fine, and the hair has no sticky, elastic touch, and exhibits good stereotype and hair refining property. When the propellant is dimethyl ether, the state of the mist is particularly excellent. However, the spray momentum is not obvious, and it is matched with water, so the setting force and the shaping retention force cannot meet the demand.

Patent Document 4 describes a gas gel type hair cosmetic comprising (A) a polyvalent alcohol in an amount of 0.1 to 5% by mass, (B) a methacrylic amphoteric resin or a pyrrolidone-based nonionic resin, and (C) two or more liquid materials. The oil is 0.1 to 3% by mass, and the mass ratio (B)/(A) of the component (A) to the component (B) is in the range of 3 to 15, and the stock solution having a water content of 2% by mass or less or less is used. A propellant composed of a liquefied gas and dimethyl ether is mixed in a mixing ratio (stock solution) / (spraying agent) of 40/60 to 70/30, and the high setting force and the moist feeling are excellent and do not occur. Flaking, blocking. However, the spray momentum is not obvious and the holding retention force cannot meet the demand.

Further, in the case of a mist-like gas mist spray for hair styling, Patent Document 5 describes an invention mainly composed of a gas gel spray container (a nozzle of an actuator).

Patent Document 1: Japanese Patent Laid-Open No. 2000-343007 Patent Document 2: Japanese Patent Laid-Open No. 2001-335426. Patent Document 3: Japanese Patent Laid-Open No. 2003-246712. Patent Document 4: Japanese Patent Laid-Open Patent Publication No. 2004-143092, Japanese Patent Laid-Open No. Hei 10-236550

In view of the importance of the hair spray, the present inventors have started a fundamental study on why the so-called user convenience is good. Then, the results of observation and analysis were performed in detail on the hair spray operation of the user, and the following facts were confirmed.

(1) When the gas gel button is pressed little by little, the spray is not directly pressed to the end, and the spray force is weakened and used.

(2) There are also people who use their hands to block or spray on their faces in order not to spray on their faces.

(3) If the spray force is reduced, especially when the styling resin is blended, there is a problem that the nozzle is blocked. In order to solve this problem with the gas gel container, when the button for lowering the blockage is used, the jet sound is large and sensory. I feel that the spray is strong and there is a tendency for the user to prefer it.

Due to the above facts, the hair spray is clearly confirmed from the viewpoint of refining the mist or preventing the clogging of the nozzle, particularly preventing the hair styling spray from being fitted with the styling resin, although it is substantially enhanced by the jetting force. Tendency, but the strong jet force does not necessarily have a feeling of good use. Moreover, if the impulse is too strong, it will cause the user to worry about the hair style that has been shaped.

In view of the above-mentioned viewpoints, the inventors of the present invention have re-examined the user's preference, and in order to provide a hair spray having a good feeling of use, in view of the prescription of the component, the results of the research are repeated, from the viewpoint of the prescription of the component, The present invention has been completed.

The object of the present invention is to provide a hair spray which allows a user to feel a good feeling of use. The present invention provides a gas gel type hair cosmetic which ensures a user's feeling of ease of use, and is excellent in mist quality. It also has excellent effects in terms of no nozzle clogging, hair styling force and hair styling retention.

That is, the present invention provides a gas gel type hair cosmetic, characterized in that the mixture ratio of the ethanol stock solution and the gas gel spray agent is filled in the range of the ethanol stock solution/air gel spray agent=40/60 to 50/50. The ethanol stock solution containing N-methyl propylene oxiranyl ethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-alkyl methacrylate copolymer and the initial internal pressure at 0.1 ° C at 20 ° C a gas gelling agent comprising a liquefied petroleum gas of 0.2 MPa; and the blending amount of the copolymer is 0.1 to 15% by mass in the total amount of the stock solution and the jet gas.

Moreover, the present invention provides a gas gel type hair cosmetic, characterized in that the mixture ratio of the ethanol stock solution and the gas gel spray agent is filled in the range of the ethanol stock solution/air gel spray agent = 40/60 to 50/50. a gaseous rubber propellant composed of a polyethylene stock solution of polyvinyl caprolactone and a liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 ° C; and a blending amount of the copolymer in the total amount of the stock solution and the jet gas The amount is 0.1 to 15% by mass.

Further, the present invention provides the above-described aerogel type hair cosmetic, characterized in that the aerogel type hair cosmetic is a hair styling spray.

The present invention provides a gas gel type hair cosmetic which is convenient for the user to use.

That is, the spray force (the weakness of the spray force) which is moderate in the feeling of the user and feels good is maintained, and the fog quality is also excellent. There is no problem of nozzle clogging due to the styling resin. Further, in hair styling and hair styling It is also extremely excellent in retention. Although the spray force is weak, the fixing force of the hair style is the same as in the past, and the user is fully satisfied.

Hereinafter, the present invention will be described in detail.

The N-methylpropenyloxyethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-alkyl methacrylate copolymer used in the present invention is a well-known acrylic amphoteric polymer. This polymer is blended as a setting agent resin having a film forming ability. As described in the above Patent Documents 1 to 4, there are many polymers in the setting agent resin to which the gas gel type hair cosmetic is blended. However, the present invention selectively uses N-methylpropenyloxyethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-methacrylic acid alkyl among a wide variety of styling resins. Ester copolymer. Particularly preferred is an alkyl ester moiety of an alkyl methacrylate which is a copolymer of C ₁₈ H ₃₇ (octadecyl ester). Commercially available RAM Rare-4000 (Osaka Organic Chemical Industry Co., Ltd.) can be preferably used.

On the other hand, the second polyethylene caprolactam used in the present invention is a known nonionic resin, and a commercially available product is preferably Rubiskelu Plus (BASF Corporation).

The amount of the above-mentioned setting agent resin is 0.1 to 15% by mass in the total amount of the raw material and the propellant gas filled in the gas gel. When it is less than 0.1% by mass, the effect of satisfactory hair styling power and hair styling retention may not necessarily be exhibited. On the other hand, when it exceeds 15% by mass, the effect of the present invention may not be exhibited from the viewpoint of nozzle clogging. Especially good relative to The total amount of the stock solution filled in the gas gel is 0.5 to 10% by mass. Further, the present invention assumes that the blocking phenomenon or the ejection pattern abnormality occurs for a while, and returns to normal during the ejection.

The above-mentioned styling agent resin is usually compounded in the form of an ethanol solution to the stock solution. The main solvent of the ethanol-based stock solution may be blended in the form of a fixative resin solution, or may be separately compounded.

The actual composition of the above-mentioned setting agent resin in the final ethanol stock solution is preferably 5 to 10% by mass.

Further, the content of the ethanol in the stock solution used in the present invention can be usually adjusted to 60 to 99.5% by mass, preferably 70 to 80.0% by mass based on the total amount of the stock solution.

The stock solution used in the present invention, in addition to the above-mentioned styling agent resin and ethanol, may be added to a component which is usually blended in a hair cosmetic, such as a silicone system or a hydrocarbon, within the range which does not impair the effects of the present invention for the purpose of the article. Oils such as esters, esters, surfactants, water-soluble polymers, chelating agents, antioxidants, UV absorbers, preservatives, vitamins, Helmons, etc., perfumes, etc.

Further, other setting agent resins other than the above-mentioned essential components may be added to the extent that the effects of the present invention are not impaired.

The gas gelling propellant used in the present invention is a liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 °C. Preferably, the initial internal pressure is 0.15 to 0.18 MPa at 20 °C. The liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 ° C can be adjusted to an arbitrary initial internal pressure by changing the composition of the liquefied petroleum gas.

In the past, the aerosol spray was used to ensure jet stability and fog. The initial internal pressure is generally about 0.25 to 0.4 MPa at 20 ° C. In contrast, the essential element of the present invention is that the initial internal pressure is very different from the conventional one. In addition, the amount of injection caused by the initial internal pressure of the present invention exhibits a remarkable effect of maintaining a substantially constant amount of stable injection amount even at a low temperature of about 5 ° C regardless of the usage rate.

The filling amount of the liquefied petroleum gas is 50 to 60% by mass in the total amount of the raw liquid and the propellant gas. The mass ratio of the ethanol stock solution filled with the gas gelatin tank to the gas gelling propellant is ethanol liquid/gas gel propellant=40/60~50/50, thereby the mass ratio of the mixture, the spray force, the setting force, the hair The adhesion is particularly excellent.

The gas-type hair cosmetic of the present invention is produced by sealing a component of the above-mentioned constituents in a gas gelatin can by a usual method, and is a good hair spray product. It is especially preferable to form a hair styling spray product which is excellent in hair styling in which the amount of the styling agent resin is 0.5% by mass or more based on the total amount of the original liquid.

Example

Hereinafter, the present invention will be more specifically described by way of examples and comparative examples. The invention is not limited to the embodiments. The blending amount is all in mass%.

Adjust the hair spray stock solution with the prescription shown in "Table 1". The stock solution is filled in a gas tank and sealed with a valve. Next, a predetermined liquefied petroleum gas is filled to obtain a hair spray.

These were used as samples, and the sprayability (spray momentum), the haze (fineness, uniformity), the setting force, the setting retention, and the clogging were evaluated in accordance with the following evaluation criteria. The results are shown in "Table 1."

(1) Jetting (spray momentum)

The spray force of the hair spray coating process was evaluated by a professional reviewer of 10 human functions.

<Evaluation Benchmark>

◎: The number of reviews for the weaker professional assessment of spray impulse is 9~10.

○: The number of reviews for which the spray impulse is evaluated as weak is 6-8.

△: The number of reviews for which the spray impulse is evaluated as weak is 3 to 5 people.

×: The number of reviews for which the spray impulse is evaluated as weak is 2 or less.

(2) Haze (fineness, uniformity)

The haze of the hair spray coating process was evaluated by a professional reviewer of 10 human functions.

<Evaluation Benchmark>

◎: The assessment of the quality of the fog is 9 to 10 people.

○: The assessment of the quality of the fog is 6 to 8 people.

△: The assessment of the quality of the fog is 3 to 5 people.

×: The evaluation of the quality of the fog is good for 2 or less.

(3) Styling force

The hair styling force was evaluated by a hair bundle functional test.

<Experimental method>

A hairdressing test sample of 0.5 g of black hair healthy hair of Beaulax was used as a hair bundle coating sample of Beaulax, and a hair bundle was subjected to a functional test at room temperature to evaluate the hair setting force. The evaluation is based on the following evaluation point benchmarks. Each person is given points, and the points of 10 people are totaled, and the evaluation of each sample is performed on the basis of the following evaluation criteria.

<evaluation point benchmark>

5 points: Hair styling power is very suitable.

4 points: The hair setting is suitable.

3 points: hair styling power is normal.

2 points: Hair styling power is not suitable.

1 point: Hair styling power is very uncomfortable.

<Evaluation Benchmark>

◎: The total number of points is 40 or more.

○: The total number of points is 30 points or more and less than 40 points.

△: The total number of points is 20 points or more and less than 30 points.

×: The total number of points is less than 20 points.

(4) Styling retention

In terms of hair styling retention, the curl retention at high humidity was evaluated.

<Experimental method>

The black hair healthy hair of Beaulax was adjusted to a length of 15 cm and a hair bundle of 1 g was used as hair. After immersing in the sample for 15 minutes, the rod was wound around a rod having a diameter of 2 cm to be crimped, and then dried at 50 ° C for one and a half hours. Thereafter, after being homogenized at room temperature for 1 hour, the rod was taken out, the hair bundle was taken out, and the film was held at 25 ° C and a humidity of 90% for 3 hours, and then the crimp holding power was measured. At this time, the length of the hair bundle immediately after the curling was released was L _o , and the length of the hair bundle after n hours was set to L _n , and the curl holding force was calculated by the following formula. Further, this experiment was repeated four times, and the average value of four times was obtained.

Curl retention (%) = {(15-L _n ) / (15-L _o )} × 100

<Evaluation Benchmark>

◎: Curl retention is 80% or more

○: Curl retention is 50% or more and less than 80%

△: Curl retention is 30% or more, less than 50%

×: Curl retention is less than 30%

(5) Blocking phenomenon

Each of the samples of the examples and the comparative examples was placed at 40 ° C for 24 hours, and then left at 5 ° C for 24 hours, followed by spraying for 10 seconds. This cycle is performed until the end of use, and the blocking phenomenon (a state in which the component is not ejected even if the actuator is pressed) is determined to be ○ if none of the bundles are present, and is determined to be × when at least one of the bundles is generated.

From the above results, it can be understood that the embodiments of the present invention are excellent in all aspects such as sprayability (spray momentum), fog quality (fineness, uniformity), setting force, shaping retention force, and clogging, and the user can Satisfied with all aspects, a spray that feels good sprayed.

Other embodiments of the invention are set forth below. All are hair sprays that have excellent effects in terms of sprayability (spray momentum), fog quality (fineness, uniformity), setting force, setting retention, and clogging.

"Example 5: Mist hair shaping spray"

<stock prescription>

40% by mass of the above-mentioned stock solution and 60% by mass of liquefied petroleum gas (0.20 MPa at 20 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

"Example 6: Mist hair shaping spray"

<stock prescription>

45 mass% of the above-mentioned stock solution and 55 mass% of liquefied petroleum gas (0.18 MPa at 20 ° C) were filled in a gas gel tank by a usual method, and the mist-shaped hair shaping spray was obtained.

"Example 7: Mist hair shaping spray"

<stock prescription>

50% by mass of the above-mentioned stock solution and 50% by mass of liquefied petroleum gas (0.20 MPa at 20 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

"Example 8: Mist hair shaping spray"

<stock prescription>

40% by mass of the above-mentioned stock solution and 60% by mass of liquefied petroleum gas (0.15 MPa at 20 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

"Example 9: Mist hair shaping spray"

<stock prescription>

40% by mass of the above-mentioned stock solution and 60% by mass of liquefied petroleum gas (0.18 MPa at 200 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

"Example 10: Mist hair shaping spray"

<stock prescription>

40% by mass of the above-mentioned stock solution and 60% by mass of liquefied petroleum gas (0.15 MPa at 20 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

"Example 11: Mist hair shaping spray"

<stock prescription>

40% by mass of the above-mentioned stock solution and 60% by mass of liquefied petroleum gas (0.15 MPa at 20 ° C) were filled in a gas gel tank by a usual method to obtain a mist-shaped hair styling spray.

(industrial use)

The invention provides a hair spray, maintains the jetting force (the weakness of the spray momentum), and also has excellent fog quality, and can also solve the nozzle blocking phenomenon caused by the setting agent resin, and although the spray momentum is weak, the hair style can be fully satisfied. In terms of fixing force, the user feels good feeling of convenience.

Claims (3)

A gas gel type hair cosmetic characterized in that N-methyl propylene oxime is filled in a range in which the mass ratio of the ethanol stock solution and the gas gel spray agent is ethanol stock solution/air gel spray agent=40/60 to 50/50. Oxygen ethyl N,N-dimethylammonium-α-N-methylcarboxybetaine-alkyl methacrylate copolymer ethanol stock solution and liquefied petroleum gas with initial internal pressure of 0.15~0.2MPa at 20 °C And a blending amount of the copolymer; and the blending amount of the copolymer is 0.1 to 15% by mass based on the total amount of the stock solution and the jet gas. The invention relates to a gas-filled hair cosmetic, characterized in that the mixture ratio of the ethanol raw liquid and the gas gelling propellant is filled with the polyethylene base enthalpy in the range of the ethanol liquid/gas gel propellant=40/60~50/50. a gaseous rubber propellant composed of a liquefied petroleum gas having an initial internal pressure of 0.15 to 0.2 MPa at 20 ° C; and a blending amount of the copolymer is 0.1 to 15 in a total amount of the stock solution and the injected gas. quality%. An aerosol-type hair cosmetic according to claim 1 or 2, which is a hair styling spray.