WO2008012938A1

WO2008012938A1 - Aerosol type cosmetic hair preparations

Info

Publication number: WO2008012938A1
Application number: PCT/JP2007/000635
Authority: WO
Inventors: Hiromi Tanaka; Masaaki Uemura; Yukitoshi Tada
Original assignee: Shiseido Company, Ltd.
Priority date: 2006-07-25
Filing date: 2007-06-14
Publication date: 2008-01-31
Also published as: TW200817038A; JP2008024676A; CN101472549B; TWI388340B; KR20090033414A; CN101472549A; JP5235049B2; KR101412020B1

Abstract

An aerosol type cosmetic hair preparation characterized in that a raw ethanol solution containing 0.1-15 mass% N-methacryloyloxyethyl-N,N-dimethylammonium α-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

Specification

Aerosol hair cosmetics

Technical field

[0001] The present invention relates to an aerosol-type hair cosmetic. More specifically, the present invention relates to a hair set spray that improves usability by reducing the spray force and adjusting it to an appropriate momentum, and solves the problems associated therewith.

Background art

[0002] In the market needs of styling agents, hair spray has always maintained a certain need, and is an important hair cosmetic that does not depend on the fashion of hairstyles

[0003] One of the important elements of hair spray usability is spray mist quality, and various studies have been conducted.

[0004] For example, in Patent Document 1, a compressed gas such as carbon dioxide gas is further added to the liquefied gas of the propellant, and the stock solution and the liquefied gas are filled in a mass ratio of 95: 5 to 75:25. However, a hair spray having a good mist quality is described by adjusting the initial internal pressure to 0.2 to 0.5 MPa at 25 ° C. However, this hair spray has a strong mist, and the holding capacity of the set case when the set agent resin is blended is unknown. Furthermore, since the mass ratio of the liquefied gas is small compared to the stock solution, the phenomenon of clogging of the aerosol also occurs. Concerned.

[0005] Patent Document 2 describes that a water-insoluble silicone compound is 0.05 to 10% by mass, lower alcohol is 1 to 60% by mass, water is 3 to 50% by mass, and propellant 25 to 90% by mass. An aerosol spray composition having a uniform and fine mist quality and a smooth feel is described, and a mixture of liquefied petroleum gas and dimethyl ether or dimethyl ether is used alone as a propellant. However, since the momentum of the mist is unknown and water is added, the set holding capacity is not satisfied.

[0006] Patent Document 3 describes solid or pasty oil, liquid oil, and film-forming ability. Containing high molecular weight compound, nonionic surfactant, water, mist-like hair cosmetic containing propellant, sprayed mist is fine, non-sticky to hair, supple touch, good It describes that the setting of the mist at the time of jetting is particularly preferable when dimethyl ether is used as a propellant and exhibits excellent setability and re-styling properties. However, the momentum of the mist is unknown and water is added, so the set holding capacity is not satisfied.

Patent Document 4 includes (A) 0.1 to 5% by mass of a polyhydric alcohol, (B) a methacrylic acid-based amphoteric resin or a pyrrolidone-based nonionic resin, and (C) two or more liquid oils. 1 to 3% by mass, the mass ratio of component (A) to component (B) (B) / (A) is in the range of 3 to 15 and the amount of water in the composition is 2% by mass or less By using a propellant composed of liquefied gas and dimethyl ether, the mixing mass ratio (stock solution) Z (propellant) is mixed in the range of 40.60 to 70.30. Aerosol-type hair cosmetics are described which have high setting power, moist feeling and no flaking or clogging. However, the momentum of the fog is unknown and the set holding power is not satisfactory.

[0008] On the other hand, Patent Document 5 describes an invention mainly made from the viewpoint of an aerosol spray container (actuator nozzle) as a mist aerosol spray for hair styling.

Patent Document 1: Japanese Patent Laid-Open No. 2 00 0 _ 3 4 3 0 0 7

Patent Document 2: Japanese Patent Laid-Open No. 2 0 0 1 _ 3 3 5 4 2 6

Patent Document 3: JP 2 0 0 3 _ 2 4 6 7 1 2

Patent Document 4: Japanese Patent Laid-Open No. 2 0 0 4 _ 1 4 3 0 9 2

Patent document 5: Japanese Patent Laid-Open No. 10-2 3 6 5 5 0

Disclosure of the invention

Problems to be solved by the invention

[0009] In view of the importance of hair sprays, the present inventors have fundamentally started research on what is convenient for users. As a result of detailed observation and analysis of the user's hair spray behavior, the following facts are recognized. It came to.

[0010] (1) There are many people who use the spray by gradually pushing down the aerosol button, or by spraying it with little pressure and weakening the mist.

(2) There are people who are spraying by guarding with their hands so as not to touch their faces or turning their faces away.

(3) If the momentum of the mist is reduced, there is a problem that the nozzle is clogged, especially when the set resin is blended. There is a tendency that the fog force is felt strongly and is not preferred by users.

[001 1] Based on the above facts, hair spray is fundamental from the standpoint of making the mist fine and preventing nozzle clogging, especially clogging of hair set spray when setting agent resin is blended. Although there is a tendency to increase the momentum of injection, it is strongly recognized that a strong momentum of injection does not necessarily give a pleasant feeling of use. Also, if the momentum is too strong, the user is also worried that the set hairstyle will collapse.

[0012] In view of the above-mentioned viewpoints, the present inventors have fundamentally reviewed the user's preferences, and in order to provide a truly comfortable hair spray, what is the viewpoint of an aerosol container? Separately, as a result of intensive research from the viewpoint of content formulation, the present invention has been completed.

[0013] An object of the present invention is to provide a hair spray that makes the user feel that it is really comfortable to use, while ensuring the momentum of the mist that the user feels easy to use, and also to the mist quality. The present invention provides an aerosol-type hair cosmetic that is excellent, has no clogged nozzles, and has excellent effects in terms of hair setting power and hair setting holding power.

Means for solving the problem

[0014] That is, the present invention relates to N-methacryloyloxychetyl 1 \ 1, N-dimethylammonium N-methyl carboxybetaine, 0.1 to 15 mass of methacrylic acid alkyl ester copolymer. Ethanol stock solution containing Aerosol propellant consisting of liquefied petroleum gas with a pressure of 0.1 5 to 0.2 MPa at 20 ° C, the mixing mass ratio of ethanol solution and aerosol propellant is ethanol stock solution Aerosol propellant = 40 60 to 50 The present invention provides an aerosol-type hair cosmetic characterized by filling in the range of 50.

[0015] The present invention also provides an ethanol stock solution containing 0.1 to 15% by mass of polyvinyl strength prolactam, and a liquefied petroleum gas having an initial internal pressure of 0.1 to 0.2 MPa at 20 ° C. The aerosol-type hair cosmetic is characterized in that the mixing mass ratio of the ethanol stock solution and the aerosol propellant is in the range of ethanol stock solution aerosol propellant = 40 60-50 50 It is.

[0016] Further, the present invention provides the above-mentioned aerosol-type hair cosmetic, wherein the aerosol-type hair cosmetic is a hair set spray. The invention's effect

[0017] According to the present invention, there is provided an aerosol type hair cosmetic that makes a user feel that it is convenient to use.

In other words, while maintaining the momentum of jetting (weakness of fog) that feels comfortable and moderate to the user, it also has excellent fog quality. In addition, there is no problem of clogging with the set agent resin. In addition, it is extremely superior in terms of hair set retention and hair set retention. Despite the low mist momentum, the hair fixing force can be fully satisfied by the user.

BEST MODE FOR CARRYING OUT THE INVENTION

[0018] The present invention is described in detail below.

[0019] N-methacryloyloxychetyl 1 \ 1, N-dimethylammonium Nichiichi N-methyl carboxibetaine used in the present invention ■ Alkyl methacrylate ester copolymer is a known acrylic amphoteric high Is a molecule. This polymer is blended as a setting agent resin having a film forming ability. As described in Patent Documents 1 to 4 above, a set to be blended with aerosol hair cosmetics The agent resin contains a large number of polymers. However, in the present invention, among many kinds of setting resin, N-methacryloyloxychetyl 1 \ 1, N-dimethylammonium mono-one N-methylcarboxyl betaine methacrylate methacrylate A copolymer is selectively used. Particularly preferred is a copolymer in which the alkyl ester portion of the alkyl methacrylate is C ₁₈ H ₃₇ (octadecyl ester). As a commercial product, RAM Resin 1 4000 (Osaka Organic Chemical Industry Co., Ltd.) can be preferably used.

[0020] On the other hand, the polyvinyl strength prolactam used in the second aspect of the present invention is a known nonionic resin, and as a commercially available product, Rubiscol PIs (BASF) is preferred.

The blending amount of the above set agent resin is 0.1 to 15% by mass in the total amount of the stock solution and the propellant gas filled in the aerosol. If the amount is less than 1% by mass, the effect of the hair setter and the hair set holding power may not always be satisfactorily exhibited. On the other hand, if it exceeds 15 mass%, the effect of the present invention may not be satisfactorily exhibited in terms of nozzle clogging. Particularly preferably, the content is 0.5 to 10% by mass with respect to the total amount of the stock solution filled in the aerosol. Further, in the present invention, even if a temporary clogging phenomenon or an abnormality occurs in the injection pattern, it is restored during the injection.

[0022] The set 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 being blended as a set agent resin solution, it may be blended separately.

It is preferable that the actual content of the set agent resin in the ethanol stock solution is finally 5 to 10% by mass.

In addition, the content of ethanol in the stock solution used in the present invention can be usually adjusted to 60 to 99.5% by mass with respect to the total amount of the stock solution. The mass is preferably 70 to 80.0 mass ⁰ / o.

[0023] Depending on the purpose of the product, the stock solution used in the present invention can be added to normal hair cosmetics in addition to the above set resin and ethanol as long as the effects of the present invention are not impaired. Ingredients such as oils such as silicones, hydrocarbons, and esters, surfactants, water-soluble polymers, chelating agents, antioxidants, UV absorbers, preservatives, vitamins, hormones, and other perfumes Can be added.

It is possible to add other set agent resins other than the essential components as long as the effects of the present invention are not impaired.

[0024] The aerosol propellant used in the present invention has an initial internal pressure of 0.15-0.

2MPa liquefied petroleum gas. Preferably, the initial internal pressure is 0.15 to 0.18 MPa at 20 ° C. Liquefaction of 0.1 5 to 0.2 M Pa at an initial internal pressure of 20 ° C Petroleum gas can be adjusted to any initial internal pressure by changing the composition of the liquefied petroleum gas.

[0025] In the conventional aerosol spray, in order to ensure the injection stability and mist quality, the initial internal pressure of the propellant is generally about 0.25 to 0.4 MPa at 20 ° C, whereas The initial internal pressure in the present invention is a very different requirement. In addition, the injection amount due to the initial internal pressure of the present invention maintains a substantially constant value regardless of the usage rate even at a low temperature of about 5 ° C, and maintains a substantially constant stable injection amount until the end. To demonstrate.

[0026] The filling amount of the liquefied petroleum gas is 50 to 60% by mass in the total amount of the stock solution and the propellant gas. The mixing mass ratio of the ethanol stock solution and aerosol propellant to be filled in the aerosol can is ethanol stock solution aerosol propellant = 40 60-50 50, and this mixture mass ratio gives the mist momentum, set power, and attachment to the hair. Particularly effective in terms of wearing power.

[0027] The aerosol-type hair cosmetic composition of the present invention is produced by a conventional method in which the above-described components are sealed in an aerosol can, and is suitably commercialized as a hair spray. In particular, it is preferable that 0.5% by mass or more of the set agent resin is blended with respect to the total amount of the stock solution to be commercialized as a hair spray for hair styling.

Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples. The present invention is not limited to these examples. All blended quantities are quality The amount is ⁰ / o.

[0029] The hair spray stock solution was prepared according to the formulation shown in "Table 1". The stock solution was filled into aerosol cans and valved. Next, a predetermined liquefied petroleum gas was filled to obtain a spray.

Using these as samples, the jetability (fog of mist), mist quality (fineness, uniformity), setka, set retention, and clogging were evaluated according to the following evaluation criteria. The results are shown in Table 1.

[0030] (1) Injectability (fog of fog)

10 expert panelists conducted a sensory evaluation of the mist momentum during the hair spray application process.

◎: The number of expert panelists who evaluated that the fog was weak was 9-10.

〇: The number of expert panelists who evaluated that the fog was weak was 6-8. Δ: 3 to 5 expert panelists evaluated that the fog is weak.

X: The number of expert panelists who evaluated that the momentum of the fog was weak was 2 or less.

[0031] (2) Mist quality (fineness, uniformity)

10 expert panelists conducted a sensory evaluation of the mist quality during the hair spray application process.

A: The number of specialized panelists evaluated as having good fog quality is 9 to 10 people.

〇: The number of specialized panelists evaluated as having good fog quality is 6-8.

Δ: The number of specialized panelists evaluated as having good fog quality is 3-5.

X: The number of expert panelists rated as good in fog quality is 2 or less.

[0032] (3) Set force

The hair set was evaluated by a sensory test using a hair bundle.

The hair bundle after applying 0.5 g of the sample to a hair bundle using 3 g (length 16 cm) healthy black hair made by Beaulux as hair, and drying at room temperature. A sensory test was conducted by a panel of female specialists to evaluate the hair set. The evaluation is based on the following evaluation criteria, and each person gives a score.

Each sample was evaluated according to the following evaluation criteria.

5 points: Very suitable as a hair set.

4 points: Suitable as a hair set.

3 points: Normal as a hair set.

2 points: Not suitable as a hair set.

1 point: Not very suitable as a hair set.

A: The total score is 40 points or more.

○: The total score is 30 or more and less than 40.

Δ: The total score is 20 points or more and less than 30 points.

X: The total score is less than 20 points.

(4) Set holding force

Regarding the hair set holding power, the curl holding power under high humidity was evaluated. Experimental method>

The hair is adjusted to a hair bundle with a length of 15 Gm and a weight of 1 g as a hair. Then, it was dried at 50 ° C. for 1 hour and a half. Then, after acclimatizing at room temperature for 1 hour, the rod was removed, and only the hair bundle was taken out and held after 3 hours in an environment of 25 ° C. and humidity of 90%, and then the curl retention force was measured.

At this time, assuming that the length of the hair bundle immediately after removing the curl was Lo, and the length of the hair bundle after n hours was Ln, the curl retention force was calculated by the following equation. The experiment was repeated 4 times, and the average of 4 times was obtained.

Curl retention force (%) = {(1 5-L n) / (1 5-L o)} x 1 0 0 <Evaluation criteria>

A: Curling retention is 80% or more ◯: Curling retention force is 50% or more and less than 80%

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

X: Curl retention is less than 30%

[0034] (5) Clogging phenomenon

20 samples of each of Examples and Comparative Examples were allowed to stand at 40 ° C for 24 hours, then left at 5 ° C for 24 hours, and then sprayed for 10 seconds. Until this cycle was used up, it was judged that no clogging phenomenon occurred (no content was ejected even when the actuator was pressed).

[0035]

1

* 1: RAM Resin Ichi 4000 (Osaka Organic Chemical Industry Co., Ltd.)

* 2: Rubiscol P I u s (B AS Co.)

* 3: Plus size L 9948 B (Keiyo Chemical Co., Ltd.)

From the above results, the examples of the present invention are: sprayability (fog of mist), mist quality (fine Uniformity), set coverage, set retention, and clogging are all excellent, and it can be seen that this is a hair set spray that the user is satisfied with in all respects and can be sprayed extremely comfortably.

[0037] Other examples of the present invention will be given below. All of these are hair sprays that have excellent effects in all aspects of jetting (fog of mist), mist quality (fineness, uniformity), setka, set retention, and clogging.

[0038] "Example 5: foggy hair set spray"

Polyoxyethylene oleyl ether (5 EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

RAM Resin one 4000 20 (actual content 6) Ethanol Balance (Total 1 00 wt%) and the stock solution 40 mass ^_0/0, liquefied petroleum gas (0.20 MPa AT 20 ° C) 60 Weight ^_0/0 and aerosol can by a conventional method Fill with a mist-like facet spray. "Example 6: foggy hair set spray"

Gu concentrate formulation>

Polyoxyethylene oleyl ether (5 EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

RAM Resin one 4000 20 (actual content 6) Ethanol Balance (Total 1 00 wt%) and the stock solution 45 mass ^_0/0, liquefied petroleum gas (0.18 MPa AT 20 ° C) 55 Weight ^_0/0 and aerosol can by a conventional method Fill with a mist-like facet spray. "Example 7: foggy hair set spray"

Polyoxyethylene oleyl ether (5 EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

Lubiscol PI us 35 (1 4 actual) Ethanol residue (Total 100 mass%) And the stock solution 50 mass ^_0/0, and a liquefied petroleum gas (0.20MPa at20 ° C) 50 Weight ^_0/0 and filled in an aerosol can in a conventional manner to obtain a § set spray to mist.

[0041] "Example 8: foggy hair set spray"

Polyoxyethylene oleyl ether (5 EO) 0.2

Dimethylpolysiloxane (6CS) 0.2

And Luviskol PI us 1 5 (actual content 6) Ethanol Balance (Total 1 00 wt%) the stock solution 40 mass ^_0/0, liquefied petroleum gas (0.15 MPa AT 20 ° C) and 60 wt% in an aerosol can in a conventional manner Fill to get a mist faceted spray.

[0042] "Example 9: foggy hair set spray"

P C A Dimethicone 0.1

MONAS I L PCA (Muniquema)

Stearyl-modified acryl silicone 0.1

KP 561 P (Shin-Etsu Chemical Co., Ltd.)

RAM resin 1 4000 20 (6 min) Isaiba rose extract 0.01

Ethanol Balance (Total 1 00 wt%) the stock solution 40 mass ^_0/0, and a liquefied petroleum gas (0.18 MPa AT 20 ° C) 60 Weight ^_0/0 and filled in an aerosol can in a conventional manner, Asetto to nebulized Get a spray.

[0043] "Example 10: A foggy hair set spray"

A RAM Resin one 4000 20 (actual content 6) Luviskol PI us 1 0 (actual content of 4) Ethanol Balance (Total 1 00 wt%) the stock solution 40 mass ^_0/0, liquefied petroleum gas (0.15 MPa AT 20 ° C) 60 Fill the aerosol can with the usual mass% to obtain a mist-like facet spray. [Example 1 1: A foggy hair set spray]

Gu concentrate formulation>

RAM resin 1 4000 20 (6 min) Sugarcane extract 0.01

Oil soluble hydrolyzed plant protein 0. 01

POE (9) POP (2) Dimethyl ether 0.1

Fragrance 0. 03

Ethanol Balance (Total 1 00 wt%) the stock solution 40 mass ^_0/0, and a liquefied petroleum gas (0.15 MPa AT 20 ° C) 60 wt% was filled in an aerosol can in a conventional manner, the § set spray to mist obtain. Industrial applicability

[0045] According to the present invention, while maintaining the momentum of spraying (weakness of mist), it is excellent in mist quality, can solve the clogging phenomenon of the nozzle due to the set agent resin, and the mist momentum is weak. Nevertheless, it is possible to provide a hair spray that can be sufficiently satisfied with the fixing power of the hairstyle and can make the user feel comfortable and comfortable to use.

Claims

The scope of the claims

[1] N-methacryloyloxychetyl 1 \ 1, N-dimethylammonium mono-N-methylcarboxybetaine An ethanol stock solution containing 0.1 to 15% by mass of a methacrylic acid alkyl ester copolymer, An aerosol propellant consisting of liquefied petroleum gas with an initial internal pressure of 20 ° C of 0.15 to 0.2 MPa, and a mixing mass ratio of ethanol stock solution and aerosol propellant is ethanol stock solution Aerosol propellant = 40 60 Aerosol-type hair cosmetics characterized by filling in the range of 50-50.

[2] An ethanol stock solution containing 0.1 to 15% by mass of polyvinyl prolactam and an aerosol propellant composed of liquefied petroleum gas at an initial internal pressure of 20 ° C of 0.15 to 0.2 MPa An aerosol-type hair cosmetic, wherein the mixing mass ratio of the ethanol stock solution and the aerosol propellant is within the range of ethanol stock solution aerosol propellant = 40 60-5050.

[3] The aerosol hair cosmetic according to claim 1 or 2, wherein the aerosol hair cosmetic is a hair set spray.