JP2003055129A - Emulsified cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a ceramide emulsified cosmetic which is stable with time and excellent in usability. SOLUTION: This emulsified cosmetic is obtained by formulating a ceramide with a higher alcohol, preferably a 12-22C higher alcohol, a synthetic stevensite and a nonionic surfactant having two hydroxy groups in the molecule, preferably in (10/1) to (1/10) weight ratio of the ceramide to the higher alcohol, in (10/1) to (1/10) weight ratio of the higher alcohol to the synthetic stevensite, in (10/1) to (1/10) weight ratio of the synthetic stevensite to the nonionic surfactant or in (10/1) to (1/10) weight ratio of the nonionic surfactant to the higher alcohol, further preferably by formulating 0.01-10 wt.% one or more kinds of ceramides with 0.01-10 wt.% one or more kinds of higher alcohols, 0.01-10 wt.% synthetic stevensite and 0.01-10 wt.% one or more kinds of nonionic surfactants having two or more hydroxy groups in the molecule.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a novel emulsion cosmetic,
More specifically, by blending ceramide, higher alcohol, synthetic stevensite, and a nonionic surfactant having two or more hydroxyl groups in the molecule, the crystallinity is very strong and it is difficult to blend in an emulsion cosmetic. The present invention relates to an emulsion cosmetic containing a certain ceramide and stable over time and having good usability.

[0002]

2. Description of the Related Art Conventionally, it has been attempted to use ceramide in an emulsion cosmetic for the purpose of moisturizing and making the skin healthy.

Here, ceramides include free ceramides represented by (Chemical Formula 1) or membrane protein-bound ceramides, and are described in the literature (Fragrance Journal, 10, 7).
5-83, 1999), free ceramides (ceramides I to VII), membrane protein-bound ceramides (ceramides A, B) and the like. Also, JP-A-63-1927
Also included are pseudoceramides represented by general formula (II) of No. 03.

[0004]

[Chemical 1]

This ceramide has very high utility value because it has a property to act on the skin immediately. However, ceramide is not compatible with various components usually used in emulsified cosmetics, so that it is an emulsified type. There is a problem that the emulsion-type cosmetic is crystallized when it is prepared and the emulsion-type cosmetic has very poor stability over time. Therefore, the fact is that no emulsion type cosmetics containing ceramide, which are excellent in moisturizing effect on the skin and which are stable over time, have been found.

[0006]

An object of the present invention is to provide an emulsified cosmetic composition having excellent usability by stably blending ceramide having high crystallinity with time.

[0007]

The present inventors have completed the present invention as a result of intensive studies in view of such circumstances. That is, ceramide, higher alcohol, synthetic stevensite, and a nonionic surfactant having two or more hydroxyl groups in the molecule are blended, and the blending ratio of ceramide to higher alcohol is preferably 10/1 to 1/1 /. 10. The compounding ratio of higher alcohol to synthetic stevensite is 10/1 to 1/10 by weight ratio, and the synthetic stevensite and nonionic surfactant having two or more hydroxyl groups in the molecule are 10/1 to 1 / weight ratio. 10 or a nonionic surfactant having two or more hydroxyl groups in the molecule and a higher alcohol are combined in a weight ratio of 10/1 to 1/10, and more preferably, the higher alcohol has 12 carbon atoms. To 22 and 0.01 to 10 wt% of ceramide, which is a combination of one or more kinds, and a high grade, which is a combination of one or more kinds. 0.01~10wt the alcohol
%, 0.01 to 10 wt% of synthetic stevensite, 0.01 to 10 wt% of a nonionic surfactant having two or more hydroxyl groups in the molecule which is a combination of one or two or more kinds.
By blending the respective amounts within the respective ranges, the invention has succeeded in inventing an emulsion cosmetic that is stable over time and is excellent in usability.

Ceramide and higher alcohol are blended, preferably synthetic stevensite is added, and more preferably, a nonionic surfactant having two or more hydroxyl groups in the molecule is blended to obtain a crystalline compound. High ceramide can be blended stably over time.

The weight ratio of ceramide to higher alcohol is not particularly limited, but if the composition ratio exceeds 10/1, the ceramide may crystallize and an emulsion cosmetic having high stability over time may not be obtained. On the other hand, if it is less than 1/10, the higher alcohol may be crystallized and an emulsion cosmetic having high stability over time may not be obtained. From the viewpoint of stability over time, a preferable blending weight ratio is in the range of 10/1 to 1/10.

The weight ratio of the higher alcohol to the synthetic stevensite is not particularly limited, but if the composition ratio exceeds 10/1, the higher alcohol is crystallized and an emulsion cosmetic having high stability over time may not be obtained. . Also, 1 /
If it is less than 10, the viscosity becomes too high, and it may be difficult to obtain an emulsion cosmetic. From the viewpoints of stability over time, thickening effect and dispersion stability, the preferred blending weight ratio is 10/1.
The range is from 1/10.

A synthetic stevensite and two hydroxyl groups in the molecule
The weight ratio with the nonionic surfactant having three or more is not particularly limited, but if the composition ratio exceeds 10/1, an emulsion cosmetic having high stability over time may not be obtained.
Further, if it is less than 1/10, the viscosity becomes too high, and it may be difficult to obtain an emulsion cosmetic. From the viewpoint of thickening effect and dispersion stability, a preferable blending weight ratio is 10/1 to 1
The range is / 10.

The weight ratio of the nonionic surfactant having two or more hydroxyl groups in the molecule to the higher alcohol is not particularly limited, but when the composition ratio exceeds 10/1, the thickening property of the emulsion type cosmetic composition is obtained. May not be possible, and may cause a sticky feeling during use. Also, 1/1
If it is less than 0, the viscosity becomes high, and the higher alcohol may be crystallized over time, resulting in poor stability over time. From the viewpoint of thickening stability and prevention of crystallization of higher alcohols, a preferable blending weight ratio is in the range of 10/1 to 1/10.

The higher alcohol used in the present invention is not particularly limited as long as it is a higher alcohol, but is preferably a higher alcohol having 12 to 22 carbon atoms. For example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, aralkyl alcohol,
Examples include behenyl alcohol.

A preferred synthetic stevensite for use in the present invention comprises stevensite type sodium magnesium phyllosilicate, the composition of which is Mg _x Na _y Si ₄ O ₁₀ (OH) ₂ .Na _z (Equation 1) where x and y Is a number greater than or equal to 2, y is a number from 0 to 0.1, and z is a number greater than 0 and up to 1.0, where x + y <3. Having a composition.

The synthetic stevensite used in the present invention is in line with synthetic hectorite and synthetic saponite from the viewpoint of magnesium silicate hydrate belonging to smectite. However, in the synthetic stevensite used in the present invention, the alkali metal portion in the layer is sodium, whereas in hectorite, the alkali metal portion in the layer is lithium, and the total of magnesium and lithium in the layer While the number of atoms (x + y) is 3, in the synthetic stevensite used in the present invention, the total number of atoms (x +) of magnesium and sodium in the layer is (x +
It is observed that the difference is that y) is less than 3. It is also recognized that the synthetic saponite is different from the synthetic stevensite used in the present invention also because aluminum is present in the layer and the total number of atoms (x + y) of magnesium and aluminum in the layer is 3. . The synthetic stevensite used in the present invention is obtained in a form containing no impure metal component, and is generally a white powder having a Hunter whiteness of 80% or more and 90% or more.

Examples of the nonionic surfactant having two or more hydroxyl groups in the molecule used in the present invention include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate and monostearic acid. Sorbitan, sorbitan sesquioleate, sorbitan trioleate, penta-
Sorbitan fatty acid esters such as diethyl sorbitan 2-ethylhexylate and diglycerol sorbitan tetra-2-ethylhexylate; glyceryl monostearate glyceryl coconut oil fatty acid glyceryl fatty acid esters such as glyceryl oleate and glyceryl distearate, dioleate monooleate Glyceryl, diglyceryl monoisostearate, diglyceryl monostearate,
Decaglyceryl monooleate, Decaglyceryl diisostearate, Decaglyceryl dioleate, Decaglyceryl dipalmitate, Decaglyceryl dilaurate,
Polyglycerin fatty acid esters such as decaglyceryl hexastearate, decaglyceryl hexaisostearate, decaglyceryl hexaoleate, decaglyceryl hexapalmitate; propylene glycol fatty acid esters such as propylene glycol monostearate;
Fatty acid alkyl glucosides such as stearic acid methyl glucoside, stearic acid ethyl glucoside, stearic acid propyl glucoside, oleic acid methyl glucoside, palmitic acid methyl glucoside, myristic acid methyl glucoside, lauric acid methyl glucoside, sesquistearic acid methyl glucoside, and distearic acid methyl glucoside. Sucrose fatty acid esters such as sucrose stearate, sucrose palmitate, sucrose myristic ester, sucrose laurate and sucrose oleate.

The blending amount of ceramide, which is one kind or a combination of two or more kinds, is not particularly limited, but the preferable blending amount is in the range of 0.01 to 10 wt%. If it is less than 0.01 wt%, the effect of moisturizing the skin may not be obtained, and if it exceeds 10 wt%,
This is because the crystallinity becomes strong and the stability with time may deteriorate.

The blending amount of the higher alcohol, which is a single type or a combination of two or more types, is not particularly limited, but the preferred blending amount is in the range of 0.01 to 10 wt%. 0.01w
This is because if it is less than t%, it may not be possible to obtain the thickening property of the emulsified cosmetic, and if it exceeds 10 wt%, the crystallinity may become strong and the stability over time may deteriorate.

The compounding amount of the synthetic stevensite used in the present invention is not particularly limited, but the preferable compounding amount is 0.0
It is in the range of 1 to 10 wt%. This is because if the content is less than 0.01%, the thickening of the emulsified cosmetic may not be obtained, and the synthetic stevensite may not feel refreshed when the cosmetic is used. Also,
If it exceeds 10 wt%, the viscosity becomes too high and the dispersibility may deteriorate, and the stability over time may deteriorate.

The amount of the nonionic surfactant having two or more hydroxyl groups in the molecule, which is one kind or a combination of two or more kinds, is not particularly limited, but the preferable amount is 0.01.
It is in the range of 10 wt%. This is because if it is less than 0.01 wt%, emulsification may not be possible. Also, 1
If it exceeds 0 wt%, the viscosity may become too high,
This is because the stability over time may deteriorate.

The emulsified cosmetic composition of the present invention is for skin,
It can be used for any of the hair. As the skin cosmetics, for example, lotion, emulsion, cream, face wash,
It can be used as a cleansing cream, a massage cream, a pack, etc., and as a hair cosmetic, it can be used in shampoos, rinses, hair treatment agents, hair styling agents and the like.

The emulsified cosmetic composition of the present invention comprises various components, such as hydrocarbons, fats and oils, waxes, various ester oils, animal oils, vegetable oils, silicone oils, fatty acids, higher alcohols and other oil agents, depending on the purpose of use. , Alcohols such as ethanol and polyhydric alcohols, amphoteric surfactants, anionic surfactants, amphiphiles such as cationic surfactants, pigments such as titanium oxide, mica and iron oxide, carboxyvinyl polymer Polymers such as xanthan gum and hyaluronic acid, pigments, vitamins, ultraviolet absorbers, hormone agents, fragrances, antioxidants, preservatives, chelating agents and the like can be appropriately added.

[0023]

The emulsion cosmetic of the present invention contains ceramide, higher alcohol, synthetic stevensite, and a nonionic surfactant having two or more hydroxyl groups in the molecule.
Preferably, the blending ratio of ceramide and higher alcohol is 10/1 to 1/10 by weight, the blending ratio of higher alcohol and synthetic stevensite is 10/1 to 1/10 by weight, synthetic stevensite and intramolecular. A nonionic surfactant having two or more hydroxyl groups in a weight ratio of 10/1 to 1 /
The weight ratio of the nonionic surfactant having two or more hydroxyl groups in the range of 10 or in the molecule to the higher alcohol is 10/1 to
More preferably, the higher alcohol has a carbon number of 12 to 22, and the ceramide is 0.01 or more.
-10 wt%, 0.01 to 10 wt% of higher alcohol that is a combination of one or more kinds, 0.01 to 10 wt% of synthetic stevensite, and a non-polymer having two or more hydroxyl groups in the molecule that is a combination of one or more kinds. By adding 0.01 to 10 wt% of an ionic surfactant within the respective ranges, it is an emulsified cosmetic in which highly crystalline ceramide can be stably mixed with time.

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.
The measurement and evaluation of physical properties in the examples were performed by the following methods. In the examples, "%" means "% by weight".

(1) Composition analysis of synthetic stevensite For samples dried at 110 ° C SiO_TwoIs the gravimetric method, M
gO is chelate titration method, Na_TwoO and Li_TwoO is the flame intensity
The concentration was measured by the method. In addition, Na in the layer_TwoO, Li _TwoTo O
For this reason, the exchangeability and adhesion of the sample sufficiently swollen with water
Distilled on with 1N aqueous ammonium acetate, wash with water, 1
The concentration of the product dried at 10 ° C. was measured.

(2) Viscosity measurement It measured using the B type viscometer.

(3) Temporal stability Temporal stability was evaluated by visually observing the one stored in three places of 5 ° C., room temperature, and 40 ° C. for one month.
When water separation, precipitation, etc. occurred, it was evaluated as ×, when there was some change in appearance, but when oil separation, water separation, precipitation, etc. did not occur, ○, and when there was no change in appearance, it was evaluated as ◎. .

<1. Regarding Ceramide Blending> Emulsion cosmetics having a ceramide blending composition as shown in Table 1 were evaluated. Table 1 shows the composition, viscosity and temporal stability of the obtained emulsion cosmetic. Ceramide I and VI used were manufactured by Cosmo Farm Co., Ltd., and ceramide II was used from Takasago.

[0029]

Example 1 A composition analysis was performed on synthetic stevensite, and the values of x, y, and z in (Equation 1) were as follows. x = 2.698 y = 0.14 z = 0.777

[0030]

[Example 2] A composition analysis was performed on the synthetic stevensite, and the values of x, y, and z in (Equation 1) were as follows. x = 2.670 y = 0.010 z = 0.650

[0031]

Example 3 A composition analysis was performed on the synthetic stevensite, and the values of x, y, and z in (Equation 1) were as follows. x = 2.809 y = 0.047 z = 0.430

(Manufacturing method) A predetermined amount of synthetic stevensite was added to 50% of purified water in purified water which had been heated to 70 ° C. and dispersed, and then 10 to 11 components and the remaining purified water were added to obtain 80 Warm to ℃ (water phase). Separately, 1-4, 6
The ingredients of ~ 9 are dissolved by heating to 80 ° C (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0033]

[Table 1]

As shown in Table 1, when the blending amount of ceramide was within the range of 0.01 to 10 wt%, a very stable emulsion cosmetic could be obtained.

<2. Mixing ratio of ceramide and higher alcohol> Change in weight of ceramide and higher alcohol
The emulsion type cosmetics having the composition shown in Table 2 were evaluated. Table 2 shows the composition, viscosity, and temporal stability of the obtained emulsion cosmetic.

(Manufacturing method) A predetermined amount of synthetic stevensite was added to 50% of purified water in purified water which had been heated to 70 ° C. and dispersed, and then 11 to 12 components and the remaining purified water were added to obtain 80 Warm to ℃ (water phase). Separately, 1-4, 6
Components 10 to 10 are dissolved by heating up to 80 ° C (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0037]

[Table 2]

As shown in Table 2, when the blending ratio of ceramide and higher alcohol is in the range of 10/1 to 1/10, or when the blending amount of each is in the range of 0.01 to 10 wt%, it is extremely high. It was possible to obtain a stable emulsion cosmetic.

<3. Blending Ratio of Higher Alcohol and Synthetic Stevensite> The weight change of higher alcohol and synthetic stevensite was evaluated as an emulsion type cosmetic composition having the blending composition shown in Table 3. The composition of the obtained emulsion-type cosmetic,
The viscosity and stability over time are shown in Table 3. Ceramide III used was manufactured by Cosmo Farm.

[0040]

Example 16 A synthetic saponite (trade name: Smecton SA) manufactured by Kunimine Chemical Co., Ltd. was used. The composition has the following values. Al = 0.444 Mg = 2.558 Ca = 0.001 Na = 0.668 (In this case, y = 0.04, z =
0.664)

[0041]

Example 17 Laporte Industries
Synthetic hectorite (trade name: Laponite XLG) manufactured by the company was used. The composition has the following values. Mg = 2.935 Li = 0.064 (corresponding to y in this case) Na = 0.455 (corresponding to z in this case)

[0042]

Example 18 Natural montmorillonite (trade name: Kunipia-F) manufactured by Kunimine Chemical Co., Ltd. was used. The composition has the following values. Al = 2.529 Mg = 0.524 Ca = 0.030 Na = 0.565 (in this case, y = 0.01, z =
0.564)

(Production method) A predetermined amount of synthetic stevensite, synthetic saponite, synthetic hectorite, or natural montmorillonite was added to 50% of purified water in purified water that had been preheated to 70 ° C., and dispersed.
2 to 13 ingredients and the remaining purified water are added and warmed to 80 ° C. (aqueous phase). Separately, 1 to 3 and 8 to 11 components
Dissolve by heating to ℃ (oil phase). Add the water phase to the oil phase,
Cool with stirring and add perfume at 50 ° C for another 30
It cooled and was prepared at.

[0044]

[Table 3]

As shown in Table 3, when the compounding ratio of the higher alcohol and the synthetic stevensite is within the range of 10/1 to 1/10, or each compounding amount is 0.01 to 10 wt.
When it was within the range of%, a very stable emulsion cosmetic could be obtained.

<4. Regarding the compounding ratio of the synthetic stevensite and the nonionic surfactant having two or more hydroxyl groups in the molecule> Table 4 shows the weight change between the synthetic stevensite and the nonionic surfactant having two or more hydroxyl groups in the molecule. An evaluation was made as an emulsified cosmetic having the composition shown. Table 4 shows the composition, viscosity, and temporal stability of the obtained emulsified cosmetic composition. The ceramide V used was made by Takasago.

(Manufacturing method) A predetermined amount of synthetic stevensite or synthetic hectorite was previously added to 50% of purified water.
After adding to purified water that has been heated to 0 ° C and dispersing, 11 to 1
Add 2 components and remaining purified water and warm to 80 ° C. (aqueous phase). Separately, components 1 to 4 and 6 to 10 are dissolved by heating to 80 ° C (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0048]

[Table 4]

As shown in Table 4, when the compounding ratio of the synthetic stevensite and the nonionic surfactant having two or more hydroxyl groups in the molecule is within the range of 10/1 to 1/10, or the respective compounding amounts are. When it was in the range of 0.01 to 10 wt%, a very stable emulsion cosmetic could be obtained.

<5. Mixing Ratio of Higher Alcohol and Nonionic Surfactant Having Two or More Hydroxyl Groups in the Molecule> Table 5 shows the weight change between the higher alcohol and the nonionic surfactant having two or more hydroxyl groups in the molecule. An evaluation was made as an emulsified cosmetic having the composition shown. Table 5 shows the composition, viscosity and temporal stability of the obtained emulsion cosmetic.

(Production method) A predetermined amount of synthetic stevensite was added to 50% of purified water in purified water which had been heated to 70 ° C. and dispersed, and then the components 11 to 12 and the remaining purified water were added to obtain 80 Warm to ℃ (water phase). Separately, 1-4, 6
Components 10 to 10 are dissolved by heating up to 80 ° C (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0052]

[Table 5]

As shown in Table 5, when the blending ratio of the higher alcohol and the nonionic surfactant having two or more hydroxyl groups in the molecule is within the range of 10/1 to 1/10, or the blending amount of each is within the range. When it was in the range of 0.01 to 10 wt%, a very stable emulsion cosmetic could be obtained.

<6. Skin cream> A skin cream was prepared using ceramide, higher alcohol, synthetic stevensite, and nonionic surfactant. Table 6 shows the composition, viscosity and stability over time of the skin cream.

(Production Method) A predetermined amount of synthetic stevensite was added to 50% of purified water in purified water which had been heated to 70 ° C. and dispersed. Then, the components 13 to 14 and the remaining purified water were added to obtain 80 Warm to ℃ (water phase). Separately, 1-4, 6
The ingredients of ~ 12 are dissolved by heating to 80 ° C (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0056]

[Table 6]

As shown in Table 6, ceramide, higher alcohol, synthetic stevensite, and a nonionic surfactant having two or more hydroxyl groups in the molecule were mixed, and the mixing ratio of ceramide and higher alcohol was 10/1 by weight. In the range of 1/10, the blending ratio of higher alcohol and synthetic stevensite is in the range of 10/1 to 1/10 in weight ratio, and the weight ratio of synthetic stevensite to the nonionic surfactant having two or more hydroxyl groups in the molecule. In the range of 10/1 to 1/10, or when the weight ratio of the nonionic surfactant having two or more hydroxyl groups in the molecule to the higher alcohol is in the range of 10/1 to 1/10, or each of them is blended. When the amount was within the range of 0.01 to 10 wt%, a very stable skin cream could be obtained.

<7. Emulsion Foundation> Emulsion foundation was prepared using ceramide, higher alcohol, synthetic stevensite, and nonionic surfactant. Table 7 shows the composition, viscosity and temporal stability of the emulsion base.

(Production method) A predetermined amount of synthetic stevensite and 1
Mix 4 to 16 ingredients and grind. The synthetic stevensite mixed with 50% of purified water and the components of 14 to 16 are added and dispersed, and then heated to 70 ° C., and the components of 10 to 13 and the remaining purified water are added (aqueous phase). Separately, components 1 to 4 and 6 to 9 are dissolved by heating to 80 ° C. (oil phase). The oil phase was added to the aqueous phase, the mixture was cooled with stirring, the fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0060]

[Table 7]

As shown in Table 7, ceramide, higher alcohol, synthetic stevensite, and a nonionic surfactant having two or more hydroxyl groups in the molecule were mixed, and the mixing ratio of ceramide and higher alcohol was 10/1 by weight. In the range of 1/10, the blending ratio of higher alcohol and synthetic stevensite is in the range of 10/1 to 1/10 in weight ratio, and the weight ratio of synthetic stevensite to the nonionic surfactant having two or more hydroxyl groups in the molecule. In the range of 10/1 to 1/10, or when the weight ratio of the nonionic surfactant having two or more hydroxyl groups in the molecule to the higher alcohol is in the range of 10/1 to 1/10, or each of them is blended. When the amount was in the range of 0.01 to 10 wt%, a very stable emulsion liquid foundation could be obtained.

<8. Hair conditioner> A hair conditioner was prepared using ceramide, higher alcohol, and synthetic stevensite. The composition, viscosity and stability over time of the hair rinse are shown in Table 8.

(Production Method) A predetermined amount of synthetic stevensite was added to 50% of purified water in purified water which had been heated to 70 ° C. and dispersed, and then 7 to 8 components and the remaining purified water were added (water. phase). Separately, components 1 to 2 and 4 to 6 are dissolved by heating to 80 ° C. (oil phase). An aqueous phase was added to the oil phase, cooled with stirring, a fragrance was added at 50 ° C., and further cooled to 30 ° C. to prepare.

[0064]

[Table 8]

As shown in Table 8, ceramide, higher alcohol and synthetic stevensite were blended, and the blending ratio of ceramide and higher alcohol was in the range of 10/1 to 1/10 by weight. When the weight ratio was in the range of 10/1 to 1/10, or when the blending amount of each was in the range of 0.01 to 10 wt%, a very stable hair rinse could be obtained.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Jiro Kitahara             2-7 Torimicho, Nishi-ku, Nagoya-shi, Aichi Japan             Nard Cosmetics Co., Ltd. (72) Inventor Satoru Nakata             2-7 Torimicho, Nishi-ku, Nagoya-shi, Aichi Japan             Nard Cosmetics Co., Ltd. F-term (reference) 4C083 AA122 AB242 AB431 AB432                       AB442 AC022 AC071 AC072                       AC122 AC242 AC422 AC442                       AC482 AC542 AC641 AC642                       AC692 AD272 BB04 CC05                       CC12 CC39 DD31

Claims (14)

[Claims] 1. An emulsified cosmetic composition comprising one or more ceramides and one or more higher alcohols. 2. The emulsified cosmetic composition according to claim 1, further comprising a synthetic stevensite. 3. The emulsified cosmetic composition according to claim 1, which comprises one or more nonionic surfactants having two or more hydroxyl groups in the molecule. 4. The emulsion cosmetic according to claim 1, wherein the blending ratio of the ceramide and the higher alcohol is in the range of 10/1 to 1/10 by weight. 5. The emulsified cosmetic composition according to claim 4, wherein the compounding ratio of the higher alcohol and the synthetic stevensite is in the range of 10/1 to 1/10 by weight. 6. The compounding ratio of the synthetic stevensite and the nonionic surfactant having two or more hydroxyl groups in the molecule is in the range of 10/1 to 1/10 by weight. Emulsified cosmetics described. 7. The compounding ratio of the nonionic surfactant having two or more hydroxyl groups in the molecule and the higher alcohol is 1 by weight.
The emulsified cosmetic composition according to claim 6, which is in the range of 0/1 to 1/10. 8. The emulsion cosmetic according to claim 7, wherein a higher alcohol having 12 to 22 carbon atoms is blended. 9. The emulsion cosmetic according to claim 8, wherein the metal component constituting the synthetic stevensite is composed of three kinds of magnesium, sodium and silicon. 10. Substantially Mg _x Na _y Si ₄ O ₁₀ (OH) ₂ .Na _z (Equation 1) wherein x and y are numbers of 2 or more, provided that x and y are x + y <3. 10. The synthetic stevensite having a chemical composition represented by the formula: y is a number from 0 to 0.1 and z is a number from 0 to 1.0. Emulsified cosmetics. 11. The emulsified cosmetic composition according to claim 1, wherein the ceramide is used alone or in combination of two or more, and is mixed in an amount of 0.01 to 10 wt%. 12. The blending amount of higher alcohol is 0.01
It is 10 to 10 wt%, The emulsion type cosmetics of Claim 11 characterized by the above-mentioned. 13. The compounding amount of synthetic stevensite is 0.0.
It is 1-10 wt%, The emulsification type cosmetics of Claim 12 characterized by the above-mentioned. 14. One or more nonionic surfactants having two or more hydroxyl groups in the molecule are added in an amount of 0.01
The emulsified cosmetic composition according to claim 13, characterized in that it is blended in an amount of 10 wt%.