JP2000015085A - Emulsified cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability and stability by preparing a high inner phase emulsified composition suitable for a cleansing cosmetic in which fat and oil are incorporated and a higher alcohol is not incorporated. SOLUTION: A high inner phase composition emulsified in water is prepared from a material which contains 70-90 wt.%, preferably 75-85 wt.%, of fat and oil and does not contain a hither alcohol. The content of solid fat is made 5 wt.% or below. It is preferable to contain at least two kinds of fat and oil in combination, especially to contain diglycerin tetraoleate. It is preferable to contain 10-40 wt.%, preferably 20-30 wt.%, of diglycerin tetraoleate. The composition can be incorporated with additional optional components which are used usually in an emulsified composition, for example hydrocarbons such as Vaseline and microcrystalline wax and triglycerides such as olive oil.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high internal phase emulsified composition suitable for cleansing cosmetics.

[0002]

2. Description of the Related Art High internal phase oil-in-water emulsion compositions have often been used in cleansing cosmetics and the like. The reason for this is that since there is a large amount of oil, it is easy to remove oil stains, and the amount of use can be reduced. However, while having such advantages, the emulsified structure is extremely distorted due to the high internal phase. Therefore, stability is secured unless a relatively high concentration of solid fats such as wax and solid high alcohols is blended. There are various disadvantages such as not being able to use, the feeling of use becomes extremely greasy, it is difficult to have a wash-off function with a wiping fee mainly composed of aqueous components or water, etc.There is a sufficient advantage due to such disadvantages There were not a few things I couldn't do.

[0003] Oil-in-water emulsified compositions having a high internal phase have attracted attention as means for sustained release in not only cosmetics but also pharmaceuticals. It is also significant in the field.

[0004] On the other hand, diglycerin tetraolate is an oil and fat for cosmetics having an excellent cleansing ability, and it can improve the stability of a high internal phase oil-in-water emulsion composition without a solid oil such as a higher alcohol. Was not known at all.

[0005]

SUMMARY OF THE INVENTION The present invention has been made under such circumstances, and provides a high internal phase oil-in-water emulsion composition which is excellent in usability and stability and suitable for cosmetics. As an issue.

[0006]

In view of such circumstances, the present inventors have conducted intensive studies on a high internal phase oil-in-water emulsion composition which is excellent in usability and stability and suitable for cosmetics. , Fat 7
The present inventors have found such properties in a high internal phase oil-in-water emulsion composition containing 0 to 90% by weight and containing no higher alcohol, thereby completing the invention. Hereinafter, the present invention will be described in detail focusing on embodiments.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) High-internal-phase oil-in-water emulsion composition of the present invention The high-internal-phase oil-in-water emulsion composition of the present invention contains 70 to 90% by weight of fats and oils, more preferably 75 to 85% by weight. Containing no higher alcohol. Here, the oils and fats referred to in the present invention mean those which are not solid at 25 ° C. and 1 atm and are not mixed with water at an arbitrary ratio. Examples of such fats and oils include liquid paraffin, hydrocarbons such as squalane, jojoba oil, neopentyl glycol diisooctyl, esters such as diethyl adipate, triglyceride isooctanoate, diglycerin tetraoleate, diglycerin monooleate and the like. Preferred examples include fatty acid esters of (poly) glycerin and silicones such as dimethicone and methylphenylpolysiloxane. These fats and oils may contain only one kind, or may contain two or more kinds in combination. In the high internal phase oil-in-water emulsion composition of the present invention, it is particularly preferable to contain two or more kinds in combination, and it is particularly preferable to contain diglycerin tetraolate. The diglycerin tetraolate preferably contains 10 to 40% by weight, more preferably 20 to 30% by weight. This is because it not only provides a remarkable improvement in the usability, but also greatly contributes to the stabilization of the emulsion composition. The high-internal-phase oil-in-water emulsion composition referred to in the present invention has a water phase component: oil phase component ratio of 70:30 to 95: 5 when an aqueous phase and an oil phase are separated. In the emulsified form, at least one aqueous phase is present outside the oil phase, and also includes a multi-phase emulsified composition such as a water-in-oil-in-water emulsion. The high internal phase oil-in-water emulsion composition of the present invention may contain, in addition to the above essential components, optional components usually used in the emulsion composition. Examples of such optional components include hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and gay wax, triglycerides such as tallow, olive oil, higher alcohols such as cetanol and oleyl alcohol, and stearic acid. , Fatty acids such as oleic acid,
Polyhydric alcohols such as glycerin and 1,3-butanediol, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, thickeners such as ethanol and carbopol, preservatives, and ultraviolet rays Absorbents, antioxidants,
Preferred examples include dyes and powders. The high internal phase oil-in-water emulsion composition of the present invention can be obtained by treating these components according to a conventional method. The high-internal-phase oil-in-water emulsion composition of the present invention can be applied to, for example, cosmetics and external skin pharmaceutical compositions. In cosmetics, it can be applied to various preparations utilizing a refreshing feeling while containing a large amount of oily components, and as a skin external pharmaceutical composition, it has sustained release and high bioavailability It can be applied as a formulation.

(2) Cosmetic of the Present Invention The cosmetic of the present invention is obtained by applying the high internal phase oil-in-water emulsified composition to a cosmetic. Since the emulsified composition has a large amount of oil, it is easy to remove oil stains. In addition, it utilizes the property that the amount used can be reduced, and the feeling of use is improved as described above. Therefore, it is preferably applied to cleansing cosmetics and the like. Further, the oil-in-water emulsion composition of the present invention having a high internal phase is also excellent in sustained release of the active ingredient, so that it can be applied as a basic cosmetic containing vitamins, a whitening ingredient, a beautiful skin ingredient and the like. When containing diglycerin tetraolate, not only the stability is improved, but also the refreshing feeling in use is improved, and it exerts an excellent cleansing action in terms of function, so that it is applied as a cleansing cosmetic. Is particularly preferred.

(3) Other applications of the high-internal-phase oil-in-water emulsion composition of the present invention In addition, the high-internal-phase oil-in-water emulsion composition of the present invention, together with an active ingredient, is slowly released to a pharmaceutical composition for external use on the skin and the like. It can be applied taking advantage of its good properties and good skin adhesion. Such active ingredients include, for example, antifungal agents such as terbinafine, butenafine and miconazole, anti-inflammatory agents such as suprofen, ibuprofen, indomethacin, steroids such as dexamethasone, betamethasone, estradiol, progesterone, plasterone, vitamin D and vitamins Preferred examples include vitamins such as A. These components can be maintained on the skin for a long time.

[0010]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but it goes without saying that the present invention is not limited to only these Examples.

Example 1 A cleansing cosmetic, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared according to the following formulation. That is, the component (a) and the component (b) are heated to 80 ° C., dissolved, and stirred, and the components (a) and (b) are mixed.
Was added, emulsified, and stirred and cooled to obtain a cosmetic for cleansing. A) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight of butyl paraben b) 1,3-butane Diol 10 parts by weight Methyl paraben 0.1 part by weight Water 4.8 parts by weight

<Example 2> An emulsified composition of the comparative example shown below was prepared, and its effect was compared with that of the emulsified composition of Example 1. Items to be compared are (1) stability at 40 ° C. for 1 month, (2) cleansing power for lip color and (3) ease of wash-off, (4) lightness during use and (5) With five items of refreshing feeling at the time of use,
(1) Hyoka is visually determined, ○: stable, Δ: some stability problem, ×: stability problem,
The evaluation of (2) to (5) was performed using five specialized panelists, and was judged based on the following criteria: grade 2: very good, grade 1: good, grade 0.5: somewhat good, grade 0: bad. . (Each person's score may be a number other than the above, including decimals.) In the cleansing test, a commercially available hard-to-drop lip color is applied uniformly to the inside of the upper arm in a size of 1 cm x 2 cm. Then, 0.5 g of the sample was placed and spread with a finger, wiped with a cotton swab, and the remaining condition was determined. After the operation, the wash-off was carried out by rinsing with tap water, gently pressing a paper towel to wipe off the water, and determining how much the emulsified composition remained at the site.
The results are shown in Table 1 as average scores. This shows that the cleansing cosmetic of Example 1, which is the high internal phase oil-in-water emulsion composition of the present invention, has good usability, excellent cleansing power, and good stability. (Comparative Example 1) Beeswax 2 parts by weight Glyceryl triisooctane 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight of butyl paraben 10 parts by weight of 1,3-butanediol Parts 0.1 parts by weight of methyl paraben 24.8 parts by weight of water (Comparative Example 2) 20 parts by weight of squalane 2 parts by weight of beeswax 15 parts by weight of glyceryl triisooctanoate 15 parts by weight of diglycerin tetraolate 40 parts by weight of 3 parts by weight of polyethanol ) Stearate 5 parts by weight Butyl paraben 0.1 parts by weight 1,3-butanediol 10 parts by weight Methyl paraben 0.1 parts by weight Water 4.8 parts by weight (Comparative Example 3) Squalane 20 parts by weight Cetanol 2 parts by weight glyceryl triiso Octaneate 18 parts by weight Diglycer 40 parts by weight of polytetraolate 5 parts by weight of polyoxyethylene (20) stearate 0.1 part by weight of butyl paraben 10 parts by weight of 1,3-butanediol 0.1 part by weight of methyl paraben 4.8 parts by weight of water (Comparative Example 4) Squalane 24.8 parts by weight Cetanol 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight Butyl paraben 0.1 part by weight 1,3-butanediol 10 Parts by weight methyl paraben 0.1 parts by weight

[0013]

[Table 1]

Example 3 The preferred content of diglycerin tetraolate in the high internal phase oil-in-water emulsion composition of the present invention was examined. According to the formulation shown below, a cleansing cosmetic, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared. That is, the component (a) and the component (b) are heated to 80 ° C.
, Dissolve, add, b) to a) with stirring,
The mixture was emulsified, stirred and cooled to obtain a cleansing cosmetic. These were evaluated according to the method of Example 2. Table 2 shows the results. From this table, it is preferable that the high internal phase oil-in-water emulsion composition of the present invention contains diglycerin tetraolate, and the content is 10 to 40% by weight, more preferably 20 to 30% by weight. % Is preferable. B) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate (GTI) * Diglycerin tetraoleate (GTO) * Polyoxyethylene (20) stearate 5 parts by weight butyl paraben 0.1 parts by weight b) 1,3 -Butanediol 10 parts by weight Methyl paraben 0.1 parts by weight Water 4.8 parts by weight * Content parts by weight of GTI and GTO are described in detail in Table 2.

[0015]

[Table 2]

<Example 8> A cosmetic for massage, which is an oil-in-water-in-high emulsion composition of the present invention, was prepared according to the following formulation. That is, the component (a) and the component (b) are heated to 80 ° C. to dissolve, and the component (c) is dispersed in the component (a). Then, a cosmetic for massage was obtained. This was a smooth-feeling massage charge, had an excellent feeling in use, had excellent wash-off properties, and had the effect of removing excess sebum components. B) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctate 16 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight butyl paraben b) 1,3-butane Diol 10 parts by weight Methyl paraben 0.1 part by weight Water 4.8 parts by weight C) Crosslinked dimethylpolysiloxane spherical powder 1 part by weight Methylsiloxane network polymer 1 part by weight

Example 9 A whitening cosmetic, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared according to the following formulation. That is, the component (a) and the component (b) are heated to 80 ° C.
, Dissolve, add, b) to a) with stirring,
The mixture was emulsified, stirred and cooled to obtain a whitening cosmetic. This product was excellent in sustained release of the whitening component. A) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight of butyl paraben b) 1,3-butane Diol 10 parts by weight Methyl paraben 0.1 part by weight Arbutin 0.1 part by weight Water 4.7 parts by weight

Example 10 According to the following formulation,
A cosmetic for beautiful skin, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared. That is, the component of a) and the component of b) are 80
The resulting mixture was heated to 0 ° C., dissolved, stirred, and added with b), emulsified, stirred and cooled to obtain a cosmetic for beautiful skin. This product was excellent in sustained release of the beautiful skin component. A) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight of butyl paraben b) 1,3-butane Diol 10 parts by weight Methyl paraben 0.1 part by weight Kouki extract 0.1 part by weight Birch extract 0.1 part by weight Water 4.6 parts by weight

Example 11 According to the following formulation,
A menopausal skin external medicine, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared. That is, the component (a) and the component (b) are heated to 80 ° C. to dissolve, and while stirring, the component (b) is added to the component (a), emulsified, stirred, and cooled to obtain a skin external medicine for menopause. . It was excellent in sustained release of hormone components. A) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight Estradiol 0.1 parts by weight Progesterone 0.1 parts by weight butyl paraben 0.1 parts by weight b) 1,3-butanediol 10 parts by weight Methyl paraben 0.1 parts by weight Water 4.6 parts by weight

Example 12 According to the following formulation,
A skin external medicine for antimycoses, which is a high internal phase oil-in-water emulsion composition of the present invention, was prepared. That is, the component (a) and the component (b) are heated to 80 ° C. to dissolve, and while stirring, the component (b) is added to the component (a), emulsified, stirred and cooled to obtain a skin external medicine for antimycoses. Obtained. It was excellent in sustained release of antifungal components. A) Squalane 20 parts by weight Beeswax 2 parts by weight Glyceryl triisooctanoate 18 parts by weight Diglycerin tetraolate 40 parts by weight Polyoxyethylene (20) stearate 5 parts by weight 0.1 parts by weight of butyl paraben b) 1,3-butane Diol 10 parts by weight Methylparaben 0.1 part by weight Butenafine 1 part by weight Water 3.8 parts by weight

[0021]

According to the present invention, it is possible to provide a high internal phase oil-in-water emulsion composition which is excellent in usability and stability and is suitable for cosmetics.

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Claims (5)

[Claims] 1. A high internal phase oil-in-water emulsion composition comprising 70 to 90% by weight of fats and oils and not containing a higher alcohol. 2. The high internal phase emulsion composition according to claim 1, wherein the content of the solid fat is 5% by weight or less. 3. The method of claim 1, wherein the diglycerin tetraolate is 10 to 4
The high internal phase emulsified composition according to claim 1, wherein the composition contains 0% by weight. 4. The high internal phase emulsified composition according to claim 1, which is a cosmetic. 5. The high internal phase emulsified composition according to claim 1, which is a cleansing cosmetic.