JPH04273807A - Rapidly foam-breaking aerosol type cosmetic composition - Google Patents

Abstract

PURPOSE:To obtain a rapidly foam-breaking aerosol type cosmetic composition, having high jetting and discharging characteristics for the scalp, skin, etc., and capable of rapidly breaking the foams in foaming in its jetting and discharging and thereby excellent in feeling of use. CONSTITUTION:A rapidly foam-breaking aerosol type cosmetic composition containing 0.1-1.0wt.% compressed gas and 1.0-10.0wt.% liquefiable gas regarded as having <=4.5 kg/cm<2> vapor pressure (gauge pressure) at 40 deg.C.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention relates to a rapidly breaking foam aerosol type cosmetic composition, the purpose of which is to have high jetting or dispensing properties on the skin or scalp, and to foam and quickly break when the jetting or dispensing is performed. To provide a rapidly breaking foaming aerosol type cosmetic composition, which allows the cosmetic composition to immediately reach the scalp instead of the hair, thereby providing an excellent feeling of use and allowing a large amount of the cosmetic composition itself to be blended. .

0002

[Prior Art] Conventionally, cosmetic compositions are generally filled in containers made of glass or plastic, and are sprinkled directly onto the desired area, such as the scalp, or applied using an instrument such as a dropper. There was a type of thing that did. Cosmetic compositions that are sprinkled directly from this container, such as hair nourishing products, can be applied to the desired scalp area (
It was used by sprinkling the liquid on the hair (where itching or hair loss was felt) and then massaging it well. However, since this sprinkle-type hair tonic is sprinkled over the hair, only a small amount of the liquid content reaches the scalp, and most of it adheres to the hair. Furthermore, in the case of such hair nourishing products, when sprinkled on the scalp, there is often a so-called dripping of the liquid content, and many people feel uncomfortable as the hair nourishing products drip onto their face and nape before they can massage the scalp. There were many. Additionally, in order to prevent this so-called sagging phenomenon, it has been considered to increase the viscosity of the liquid content of the hair nourishing product, but when applied to the scalp, it makes the scalp and hair feel sticky, and in the end, it is not possible to obtain a satisfactory product. There was a drawback.

On the other hand, aerosol-type cosmetic compositions in which the contents of the cosmetic composition are sprayed have also been widely used. Such aerosol-type cosmetic compositions are commonly used in which only liquefied gas or compressed gas is mixed as a propellant in a container, and the cosmetic composition is sprayed directly onto the skin, scalp, etc. Ta.

[0004] Aerosol type cosmetic compositions containing liquefied gas require a large amount of liquefied gas to be blended into the container as a propellant. The liquefied gas enclosed in conventional aerosol type cosmetic compositions is approximately 30-95%
As a result, the amount of liquid content in the intended cosmetic composition itself was extremely small. The reason for blending a large amount of liquefied gas is to spray the liquid contents vigorously, and then press the discharge nozzle directly against the target area (the area where itching or hair loss is felt) to discharge the cosmetic composition itself. The idea was to provide a cooling sensation to the skin and scalp by utilizing the heat of vaporization of liquefied gas. However, with conventional aerosol-type cosmetics that contain a large amount of liquefied gas, the sprayed liquid contents tend to form a mist together with the propellant, and when used away from the scalp, the liquid contents do not reach the scalp and form a mist. It has the disadvantage that it disperses, and as a result, it sticks only to the hair, or in extreme cases, it scatters around the hair.

[0005] On the other hand, as aerosol type cosmetic compositions, there are also types of cosmetics in which compressed gas is mixed and filled.
This type of cosmetic composition contains an extremely small amount of propellant, or compressed gas, compared to the above aerosol type cosmetic composition containing liquefied gas, and the amount contained in a typical container is 1 weight. % or less. The reason for this is that mixing a large amount of compressed gas may cause problems with the pressure resistance of the container.
This is because various regulations such as the current High Pressure Gas Control Law prevent it from being added in large amounts. When this aerosol-type cosmetic composition containing compressed gas is sprayed onto the scalp, the liquid content often drips, and some people feel uncomfortable because it drips onto their face and nape before they even massage their scalp with their hands. There was also the problem that there were a lot of

[0006]

[Problems to be Solved by the Invention] In view of the above-mentioned conventional problems, it is desirable to create an aerosol-type cosmetic composition that compensates for the drawbacks of conventional aerosol-type cosmetic compositions and has new functions. It was wanted.

[0007]

[Means for Solving the Problems] In order to avoid the above-mentioned drawbacks, the present invention aims to solve the problems by using a compressed gas of 0.1 to 1.0
Weight% and vapor pressure (gauge pressure) at 40℃ is 4.5 kg/
By providing a rapidly breaking foam aerosol type cosmetic composition containing 1.0 to 10.0% by weight of a liquefiable gas having an amount of liquefied gas of less than cm2, we have successfully overcome all of the above conventional drawbacks. It is.

[0008] As a result of intensive research, the inventors found that by uniformly solubilizing or emulsifying and dispersing liquefiable gas in the liquid content, and at the same time blending compressed gas,
Even if the cosmetic composition is squirted from the container, the mist will not scatter around and make a mess before the cosmetic is applied to the scalp or skin, and the sprayed contents will not drip from the scalp to the nape of the neck. It does not cause discomfort to the user, and by suppressing this dripping, the liquid can stay in the target area for a longer time than before, resulting in a more effective application on the scalp, skin, and other areas of application. The present inventors have found that the present invention is promising, and that a large amount of liquid content can be incorporated into the container, leading to the completion of this invention.

[0009]

Compressed gas in this invention refers to gases that do not become liquid even when compressed at room temperature, that is, gases whose critical temperature is lower than room temperature, such as carbon dioxide gas CO2, nitrogen gas N2, oxygen O2, suboxide gas, etc. Examples include nitrogen gas NO, argon gas Ar, helium gas He, and neon gas Ne.

[0010] The compressed gas which is an essential component in this invention is suitably selected from those exemplified above, and when filled into the container, the internal pressure is kept at 35°C and 8.0 kg.
/cm2 or less is desirable. Here, the amount of compressed gas blended is 0.1 to 1.0% by weight based on the total amount. As mentioned above in this invention, the reason why the amount of compressed gas blended is limited is that if it is less than 0.1% by weight, a suitable aerosol injection pressure which is the objective of this invention cannot be obtained;
．． This is because if it exceeds 0% by weight, the internal pressure in the product will become too high and it will not be possible to maintain the internal pressure below the level regulated by the High Pressure Gas Control Law, etc., which is undesirable in either case. Furthermore, if the internal pressure of the product becomes too high, the injection condition (pattern) will deteriorate significantly.
This is because the intended purpose of this invention cannot be achieved.

[0011] In this invention, liquefiable gas is a concept that includes both liquefied gas and low boiling point hydrocarbons. Liquefied gas refers to a gas whose critical temperature is higher than room temperature when it becomes liquid simply by compression, such as what is called LPG, which is a unit or mixture of propane, n-butane, iso-butane, Freon 11, and Freon. 12, Freon 114, so-called chlorofluorocarbon gas, dimethyl ether, etc. What are low boiling point hydrocarbons? iso-pentane,
Examples include n-pentane.

[0012] In the present invention, one or two of these are preferably selected, the vapor pressure (gauge pressure) of which is 4.5 kg/cm2 or less at 40°C, and the blended amount is 1% of the total amount. 1.0 to 10.0% by weight, preferably 1.0 to 5.0% by weight. The reason why the vapor pressure (gauge pressure) of the liquefiable gas at 40°C is limited to 4.5 kg/cm2 or less in this invention is 4.5 k
This is because if a liquefied gas exceeding 1 g/cm2 is blended, the foaming property immediately after spraying becomes significant, the spray pattern deteriorates, and the reachability of the cosmetic composition to the scalp decreases, which is not preferable. In addition, the blended amount of liquefiable gas was adjusted to 1.
The reason why the content is set at 0 to 10.0% by weight is that if it is less than 1.0% by weight, the foaming properties of the liquid content when it reaches the scalp during injection will be extremely small, and the liquid will drip significantly, which is not the purpose of the present invention. On the other hand, if it exceeds 10.0% by weight, the jetting condition of the aerosol type cosmetic composition will be poor, and if this liquefiable gas is uniformly solubilized, emulsified, and dispersed. This is because it requires the use of a fairly large amount of surfactant, which causes unpleasant stickiness to the scalp and hair, which is undesirable.

[0013] In order to obtain the fast-breaking foaming aerosol type cosmetic composition according to the present invention, in addition to the above-mentioned propellant, cosmetic raw materials such as hair-growth/hair-nourishing ingredients or suitable ingredients may be added to the liquid content depending on the purpose. A surfactant is blended, liquefied gas is uniformly dispersed using solubilization or emulsification technology, and compressed gas is filled to obtain an aerosol product.

When the rapidly breaking foam aerosol type cosmetic composition prepared in this way is sprayed onto the skin or scalp, it foams upon reaching the skin or scalp, quickly breaks down, and has no feeling of use. It will be excellent.

[0015]

EXAMPLES The effects of this invention will be made clearer by way of examples below. Note that this invention is not limited in any way by the following examples. Moreover, all compounding amounts are weight %.

[0016]

[Example 1] (Content liquid 1) (1) Ethanol
50.00 (2
) Vitamin E
0.10 (3) Dipotassium glycyrrhizinate
0.20 (4) l-menthol
0.
20 (5) Carrot extract
2.00
(6) Polyoxyethylene nonylphenyl ether 0.50 (7) Polyoxyethylene hydrogenated oil
0.50 (8
) Sodium hyaluronate
0.03 (9) 1,3-butylene glycol 3.0
0 (10) Fragrance
0.2
0 (11) Purified water
Appropriate amount ────────────────────────
──────── Total
1
00.00 The above (1) to (11) were mixed and uniformly dissolved to obtain Content Liquid 1. Fill a can with liquid contents 1 and compressed gas (carbon dioxide gas), close the valve, and while shaking, mix the can with liquefiable gas (isopentane, whose vapor pressure at 40°C is 0.5 kg).
/cm2) was filled into the can to obtain a product. Table 1 shows the blending amounts of the liquid contents and propellant.

[0017]

[Example 2] (Content liquid 2) (1) Setanol
0.5
(2) Polyoxyethylene sorbitan monostearate 0.2 (3) Sorbitan monostearate 0.1
(4) Ethanol
30.0
(5) Pantothenyl ethyl ether
0.2 (6) Acetic acid d
l-α-tocopherol
0.1 (7) l-menthol

0.3 (8) d-camphor

0.1 (9) Assemblage extract

1.0 (10) Polyether modified silicone
1.0 (
11) Fragrance
0.2
(12) Purified water
Appropriate amount──────────────────────
────────── Total

100.0 After mixing and stirring a part of the above (1) to (3) and (12) at 80 to 85°C,
It was cooled and mixed uniformly with the mixed and dissolved solution of (4) to (11) and the rest of (12) to obtain a content liquid 2. A product was prepared in the same manner as in Example 1 except that Content Liquid 2 was used, nitrogen gas was used as the compressed gas, and Freon gas (F114) was used as the liquefiable gas. Table 2 shows the amount of liquid content and propellant.
shown in

[0017]

[Example 3] (Content liquid 3) (1) Ethanol
60.0
(2) Tocopherol acetate
0.1 (3)
pantothenyl alcohol
0.2 (4) Pyridoxine hydrochloride
0.1 (5) Isopropylmethylphenol 0
．． 1 (6) d-camphor
0.
2 (7) Polyoxyethylene hydrogenated oil
0.5 (8)
polyoxyethylene cetyl ether
0.3 (9) Setanol

0.3 (10) Polyoxyethylene sorbitan monostearate 0.1 (11) Carrot extract
2.0 (12) Propylene glycol
3.0 (13) Fragrance

0.3 (14) Purified water

Appropriate amount────────
────────────────────────
total
100.
0 The above (1) to (14) were mixed and uniformly dissolved to obtain a content liquid 3. A product was prepared in the same manner as in Example 1 using Content Liquid 3, except that nitrogen gas was used as the compressed gas and LPG gas (with a vapor pressure of 4.5 kg/cm2 at 40°C) was used as the liquefiable gas. did. The blending amounts of the liquid content and propellant are shown in Table 3.

[0018]

[Example 4] (Content liquid 4) (1) Ethanol
60.
0 (2) Tocopherol acetate
0.1
(3) Pantothenyl alcohol
0.2 (4)
Dipotassium glycyrrhizinate
0.1 (5) Isopropylmethylphenol
0.1 (6) d-camphor

0.2 (7) Polyoxyethylene hydrogenated oil
0.5 (8) Polyoxyethylene nonylphenyl ether 0.3 (9) Setanol
0.3 (10) Polyoxyethylene sorbitan monostearate 0
．． 1 (11) Carrot extract

2.0 (12) Propylene glycol
3.
0 (13) Fragrance

0.3 (14) Purified water

Appropriate amount──────────────
──────────────── Total

100.0 (1) above
- (14) were mixed and uniformly dissolved to obtain Content Liquid 4. Using the content liquid 4, nitrogen gas was used as the compressed gas, and LPG gas was used as the liquefiable gas (vapor pressure at 40°C was 3.5 kg).
A product was prepared in the same manner as in Example 1, except that 20% of the product was used. Table 4 shows the amount of liquid content and propellant.
shown in

[0019]

[Comparative Examples 1-1 to 1-2] Content liquid 1 similar to Example 1
A product was prepared in the same manner as in Example 1, with the addition of a propellant. The blending amounts are shown in Table 1.

[0020]

[Comparative Examples 2-1 and 2-2] Content liquid 2 similar to Example 2
A product was obtained by adding a propellant in the same manner as in Example 2. However, nitrogen gas is used as the compressed gas, and mixed fluorocarbon gas is used as the liquefiable gas (F12 to F114 in a weight ratio of 60:4).
The vapor pressure at 40℃ for a mixed gas of 0 is 6.7kg/c
m2) was used. The blending amounts are shown in Table 2.

[0021]

[Comparative Examples 3-1 to 3-3] (4) A liquid solution 3' was prepared in the same manner as in Example 3 except that glycyrrhetin was used instead of pyridoxine hydrochloride, and a propellant was added in the same manner as in the previous example to obtain a product. Ta. However, nitrogen gas is used as compressed gas, and L is used as liquefiable gas.
PG gas (vapor pressure at 40 °C is 3.5 kg/cm2
) was used. The blending amounts are shown in Table 3.

[0022]

[Comparative Examples 4-1 to 4-2] (Content liquid 4') (1) Ethanol
97.2
(2) Tocopherol acetate
0.1 (3)
Pyridoxine hydrochloride
0.1 (4) Isopropylmethylphenol
0.1 (5) 1,3-butylene glycol 2.0
(6) l-menthol
0.2
(7) Flavorings
0.
3────────────────────────
──────── Total

100.0 Mix (1) to (7) above,
The mixture was uniformly dissolved to obtain a content liquid 4'. This liquid content 4'
A product was prepared in the same manner as in Example 4 using the same method as in Example 4 with the addition of a propellant.

[0023]

[Comparative Example 5] (1) Ethanol
50.00
(2) Vitamin E
0.10 (
3) Dipotassium glycyrrhizinate
0.20 (4) l-menthol
0.20 (5) Carrot extract

2.00 (6) Polyoxyethylene nonylphenyl ether 0.50 (7) Isopropyl myristate
1.00 (8) 1,3-butylene glycol 3.0
0 (9) Fragrance
0
．． 20 (10) Purified water

Appropriate amount──────────────────────
────────── Total

100.00(1) to (10) were mixed, uniformly dissolved, and filled into a container to obtain a product.

[0024]

[Comparative Example 6] (1) Ethanol
50.00
(2) Vitamin E
0.10 (
3) Dipotassium glycyrrhizinate
0.20 (4) l-menthol
0.20 (5) Carrot extract

2.00 (6) Polyoxyethylene hydrogenated oil 0.5
0 (7) Sodium hyaluronate
1.00 (8)
1,3-butylene glycol
3.00 (9) Fragrance

0.20 (10) Purified water

Appropriate amount────────────
────────────────────
total
100.00 (1)
- (10) are mixed and uniformly dissolved to form a high viscosity liquid, and this liquid is filled into a container to produce a product.

[0025]

[Table 1]

[0026]

[Table 2] *1 In Example 2, Freon gas 114 (with a vapor pressure of 2.5 kg/cm2 at 40°C) was used, and in Comparative Example 2
Mixed Freon gas (F12 to F114 weight ratio: 60)
The vapor pressure at 40℃ for a mixed gas of 40% is 6.7kg.
/cm2) were used.

[0027]

[Table 3] *2 Example 3 has a vapor pressure of 4.5 kg at 40°C.
/cm2, and in Comparative Example 3, one with a vapor pressure of 3.5 kg/cm2 at 40°C was used.

[0028]

[Table 4] *3 In Example 4 and Comparative Example 4, those having a vapor pressure of 3.5 Kg/cm2 at 40°C were used.

[0029]

[Test Example] The products obtained in Examples 1 to 4 and Comparative Examples 1 to 4 were sprayed onto the head at a distance of about 5 to 30 cm from the scalp. At this time, the valve of the aerosol container used had a stem orifice diameter of 0.3 m/m, no vapor tap, and an under tap of 0.3 m/m. In addition, the button (actuator) of the aerosol container has a nozzle hole of 0.6 mm.
A straight type of m/m was used. Comparative example 5
The product obtained was sprinkled directly onto the scalp. The product obtained in Comparative Example 6 was used by applying it directly to the scalp with an instrument such as a dropper.

(Evaluation) In order to test the functionality of Examples 1 to 4 and Comparative Examples 1 to 6, the following items (1) to (
4) were compared. The evaluation methods for these items are marked with ○, △, and ×, and the results are shown in Table 5.

(1) Reachability to the scalp: This is a sensory evaluation using each Example and Comparative Example, and the evaluation criteria are as follows. ○...Good△...Average×...Poor

(2) Sagging from the scalp: The dripping of the liquid contents from the scalp when used according to the usage method described above was evaluated. The evaluation is as follows. ○...Almost no sauce - Slight sauce △...Large sauce ×...The sauce is noticeable

(3) Injection state (pattern): From the scalp,
Observe the spray condition when using it from a distance of about 20 cm. The evaluation criteria are as follows. ○...Sprays almost in a straight line. △: Slightly scattered or sprayed in the form of mist. ×: Sprays in a mist form.

(4) Stickiness of scalp and hair: After spraying or applying to the scalp and massaging the scalp, the stickiness of the scalp and hair was sensory evaluated. The evaluation criteria are as follows. ○...Low stickiness △...Slight stickiness ×...Large stickiness

[0035]

Effects of the Invention As detailed above, the present invention provides a compressed gas of 0.1 to 1.0% by weight and a liquefiable gas whose vapor pressure (gauge pressure) at 40°C is 4.5 kg/cm2 or less.
Since it is a rapidly breaking foam aerosol type cosmetic composition containing 1.0 to 10.0% by weight, it has the following effects. In other words, the fast-breaking foaming aerosol type cosmetic composition of the present invention contains a liquefied gas and a compressible gas, so that the sprayed mist can be directly applied to the skin and scalp without scattering and staining the surrounding area. It can be used by spraying it on etc.

Furthermore, when sprayed onto the skin or scalp, it foams as soon as it reaches the skin or scalp, and because it is a quick-breaking foam type that immediately bursts immediately after foaming, the undiluted solution drips, causing discomfort. The present invention has the effect of providing a rapidly breaking foam aerosol type cosmetic composition which has a small internal pressure fluctuation and a high content liquid content.

[Table 5]

Claims (1)

[Claims] [Claim 1] Compressed gas of 0.1 to 1.0% by weight and a vapor pressure (gauge pressure) of 4.5 kg/cm2 at 40°C
A rapidly breaking foam aerosol type cosmetic composition comprising 1.0 to 10.0% by weight of a liquefiable gas as follows.