JPS61263631A - Water in oil type emulsion containing volatile oil - Google Patents

Abstract

PURPOSE:To eliminate an oil feeling and to increase the stability of the titled emulsion by blending one or >=2 kinds of the volatile oils, a lipophilic surfactant, polyvalent alcohol having >=3 OH groups in a molecule and water. CONSTITUTION:A water in oil type emulsion is prepared by blending one or >=2 kinds of the volatile oils, the lipophilic surfactant, the polyvalent alcohol having >=3 OH groups in the molecule and water. As the volatile oil, hydrocarbon having low b.p. or silicone oil is used and the amount to be blended is preferably 5-50wt% (per water in oil type emulsion composition, and so forth). As the polyvalent alcohol having >=3 OH groups in the molecule, glycerin and arabitol, etc., are used and the amount to be blended is preferably 1-60wt%. Also as the lipophilic surfactant, polyglycerin esters are used and the amount to be blended is preferably 1-20wt%.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel water-in-oil emulsion containing a volatile oil agent.

Traditionally, water-in-oil emulsions are used in cosmetics.

It is used in pharmaceuticals and various other products, and is especially used in cosmetics because it has superior properties such as better adhesion to the skin and longer makeup retention than oil-in-water emulsions. . Although water-in-oil emulsions have these advantages, on the other hand, because a large amount of oil is used, they have some disadvantages such as poor spreadability, oiliness, stickiness, etc. can be seen.

Various studies have been carried out to date to improve these points, but among them, so-called solutions with high aqueous phase concentration,
Water-in-oil emulsions with high internal phase ratios have recently attracted attention. However, even in the case of improvements based on this high internal phase, there are limits to what has been provided so far, and what can be obtained is that the original oily feel of the oil remains on the skin.
There is a tendency for the emulsion to spread slowly, and satisfactory results have not always been obtained in terms of stability as an emulsion.

As a result of intensive research and efforts based on the current situation, the present inventor has overcome the above-mentioned drawbacks and taken advantage of the excellent characteristics by effectively using a volatile oil agent in a water-in-oil emulsion. Invented cosmetics.

That is, the present invention relates to oil agents and lipophilic surfactants.

In a water-in-oil emulsion consisting of a polyhydric alcohol having three or more hydroxyl groups in the molecule and water.

The present invention relates to a water-in-oil emulsion characterized by containing one or more volatile oil agents as an oil agent.

3 for suitable pre-filling in the home base emulsion in oil of the present invention.
1 to 60 polyhydric alcohols having acid groups in 7 or more,
The water content ranges from 30 to 90%, and the composition may contain non-volatile oils or coloring materials, if necessary. In addition, when obtaining a water-in-oil emulsion having a high internal phase ratio, the ratio of the oil phase component to the water phase component is 5I.
:l:2 to l:9, and if necessary, the ratio of volatile oil to lipophilic surfactant is 2s:t to 0.5:1. Ratio of lipophilic surfactant to the above polyhydric alcohol: 29: x ~ 0, 5
: It is prepared as 1.

If the content of the volatile oil is small, the effect of the added volatile oil will hardly be exhibited, and if there is a large amount, it will be difficult to emulsify, which is unsuitable. The contents of the lipophilic surfactant and the polyhydric alcohol are not appropriate either when they are lower or higher than the above because emulsification is difficult. If the water content is small, the stability of the emulsion obtained will be poor, and if the water content is large, it will be difficult to emulsify, so it is desirable to select the above range.

The volatile oil used as an essential component in the present invention is a low-boiling hydrocarbon or silicone oil, and 91 types or two or more of these are selected or used as a mixture.

The above-mentioned low boiling point hydrocarbon is a straight chain, branched or cyclic hydrocarbon having 6 to 15 carbon atoms, preferably 8 to 15 carbon atoms. (These hydrocarbons exhibit a boiling point of 200°C or less when exposed to air.) In the present invention, the most suitable hydrocarbon is imparaffin having a carbon number of 10 to 13,
These are superior to other volatile oils in terms of ease of emulsification and stability after emulsification. Therefore, when it is desired to obtain a water-in-oil emulsion for the above purpose, the isoparaffin in this range is used alone, or the composition ratio of the imparaffin and other volatile oil is 9:1 to 1.
: It is preferable to prepare in the range of 1 and use isoparaffin as the main component. Incidentally, specific commercial products of the above-mentioned hydrocarbons include Isopar G (E8SO), Scherzl 71 (5hell), and the like.

Examples of low-boiling silicone oils include those with a boiling point of 200° C. or lower (under atmospheric pressure), such as dimethylpolysiloxane and m-shaped cyclodimethylpolysiloxane. The viscosity of the silicone oil is 25℃, 10℃,
S, optimally less than 5 C, S, preferably less than or equal to 5 C, S, preferably bo It does not leave an oily feel on the skin, and when used as a cleansing cosmetic, it is extremely effective in removing dirt from the skin.

In the present invention, other oils may be used in combination with the above-mentioned volatile oils, if necessary. Such oils may be those normally used in water-in-oil emulsions, such as hydrocarbons (other than the volatile oils mentioned above), oils and fats, waxes, higher alcohols, higher fatty acids, esters, etc. Various types can be mentioned, and depending on the purpose, one type or a combination of two or more types can be used, or a mixture can be used. As the most preferred oil agent, hydrocarbons are effective in terms of ease of emulsification and stability. The volatile components are 5qIb or more, preferably 1O in the total amount of oil containing these oils.
It can be used in a range of ts or more. In the case of a water-in-oil emulsion using a volatile oil and these oils within this range, makeup has the advantage of improving makeup retention and reducing the feeling of blistering on the skin, compared to when a volatile oil is used alone.

The lipophilic surfactant according to the present invention has an HLB value of 1 to 1.
0 and 1, such as polyglycerin esters, glycerin pyroglutamic acid monofatty acid esters, polyglycerin ethers, polyoxyethylene alkyl ethers, horiokiche f1/no hydrogenated castor oil esters, sorbitan fatty acid esters, polyoxyethylene polyoxy Examples include propylene 2-isostanol esters, etc., and one or more types thereof may be selected or used as a mixture. Preferably, polyglycerin esters and glycerin pyroglutabanate monofatty acid esters are preferred because of their ease of emulsification, stability, and good feel.Specifically, triglyceryl diinostearate, triglyceryl diinostearate, Glyceryl triisooctanoate, pyroglutamic acid heptanoglyceryl oleate, diglyceryl isostearyl ether, polyoxyethylene (2) oleyl ether, polyoxyethylene (7 mol) hardened and mustard oil ester, polyoxyethylene (4 mol) Hydrogenated castor oil ester, sorbitan monolaurate,
Examples include polyoxyethylene (5 mol) polyoxypropylene phytostanol ester. In addition to the lipophilic surfactant, if necessary, a hydrophilic surfactant can be used in combination without departing from the spirit of the present invention.

The polyhydric alcohols used as essential components in the present invention have three or more hydroxyl groups in one molecule, such as glycerin, diglycerin, triglycerin, polyglycerin, arabit, norbit, sorbitan, mannitan, marbit, maltose, and mannitan. Nit, Ki7lit, Glucose.

Raffinose, maltitol, sucrose, lactose, dextrin, pentaerythritol, etc. may be used alone or as a mixture, preferably in one molecule. A polyhydric alcohol having 9 or more hydroxyl groups, most preferably Marvit. Polyhydric alcohols such as Marvit have advantages over the other polyhydric alcohols mentioned above in that they have a wide range of emulsification tolerance for other components, are easy to emulsify, and have good stability.

Therefore, when obtaining the most desirable water-in-oil emulsion 7, it is preferable to use this polyhydric alcohol such as Marvit alone or in combination with other polyhydric alcohols mentioned above. In such a combination, a ratio of Marvit and the polyhydric alcohol in the range of 9:1 to 1:1 is effective in terms of ease of emulsification and stability. In addition, it is desirable to use this Marvit in the form of an aqueous solution in a range of 20 to 70 parts per 100 parts of water. In addition, all of the above polyhydric alcohols (including Marubito) of the present invention have good water-in-oil hydration properties and emulsification compared to other ordinary polyhydric alcohols, that is, those having less than 3 hydroxyl groups in the molecule. Easy to wear,
It has excellent effects such as good stability.

The water-in-oil emulsion of the present invention contains as essential components the above-mentioned conventional oil agent, a lipophilic surfactant, a polyhydric alcohol having three or more hydroxyl groups in one molecule, and water. However, in addition to these, a coloring material can be contained. This coloring material is added in an amount of 0.5 to 40% based on 100% of the total weight of the water-in-oil emulsion composition excluding the coloring material.
A water-in-oil emulsion with a pleasant texture as the desired cosmetic product is obtained. Usual coloring materials may be used, such as Merck, kaolin, and bentonite.

Montmorillonite, magnesium carbonate, calcium carbonate, magnesium silicate, calcium silicate, mica, titanium dioxide, sericite, polyethylene powder.

Examples include nylon powder, zinc oxide, iron oxide, organic pigments, etc., and these can be used in combination with one or more of them, or as a mixture.

What is particularly important about the present invention is that by applying the water-in-oil emulsion technology of the present invention to cosmetics such as under-make-up, mascara, and foundation powder, cosmetics that are superior to those of the past can be obtained. It is in.

In other words, in the case of under-make-up agents, the volatile oil agent in the continuous phase has properties as a solvent, has a cleansing function, and has an excellent tactile function, and at the same time, a hydrophilic surfactant is used. Since it is not necessary, you can get makeup that does not easily come off. This is a cosmetic product that was made possible by a water-in-oil emulsion containing a volatile oil and a dosage form. A preferable composition of such an under make-up agent is a volatile oil agent of 5 to log % and a lipophilic surfactant of 3 to 5 s in Zoo% of the total weight.

Said polyvalent 7/l/:I-/L/6-10 To @ water 4
0-85L, 5-46% of normal oil. In the case of mascara, it is possible to obtain a mascara that has excellent water resistance, a strong film, and is resistant to makeup deterioration. Mascara is
Generally, it is considered necessary to form a strong film by drying after application, but the present invention not only satisfies this condition, but also has excellent volatility and water resistance while taking advantage of the good feel of an emulsion type. You can get excellent mascara. The preferred composition of such a mascara is, based on the total weight Zoo%, 8 to 12% volatile oil agent, 3 to 5% affinity surfactant,
Said polyhydric alcohol 4-10%, wax 1-20%
.

40-70% water, 2-19% regular oil, 4-12% coloring material
%. Furthermore, in the case of foundation, an emulsified foundation that does not require white powder to suppress makeup can be obtained. Ordinary powder type foundations have poor moisturizing effect on the skin, but this type of 7 foundation according to the present invention has the same finish as the powder type, but has excellent moisturizing effect. Moreover,
Since a highly hydrophilic surfactant is not required, a good cosmetic effect can be obtained without causing makeup smearing.

The preferred composition of such a foundation is a total weight of 10
0%, volatile oil agent 5-15%, lipophilic surfactant 3-5%, polyhydric alcohol 6-15%, water 40-40%.
75%, normal oil agent θ~41%.

Coloring materials 5 to 15 are listed.

The method for producing the water-in-oil emulsion according to the present invention may be a general production method or another method, regardless of whether it has a high internal phase ratio.

In the present invention, fragrances and preservatives are added if necessary.

Pigments, plasticizers, thickeners, neutralizers, alcohols.

UV absorbers, chelating agents, moisturizers, vitamins.

Antifreeze agents, metal soaps, water-soluble inorganic polyvalent metal salts.

Raw materials such as water-soluble organic acids (or salts thereof) may be added as appropriate.

Next, the results of tests conducted on the sensory evaluation and stability of the present invention will be shown in comparison with comparative products.

As for the sensory evaluation method, an evaluator evaluated each sensory evaluation item using the following 5-point method for 40 women. Convert the evaluation results into scores, calculate the total,
The average value was calculated.

(Evaluation method) (・)Tsuba] No feeling
Yes (f) Residual feeling of oil Yes (S) Formation of a strong film No
A) (1) No moisturizing effect
[Test 1] Samples for sensory evaluation were Example 1 of the present invention (present invention product [I]) described later, and isoparaffin (Cs) in its formulation.

～Cts) was replaced by half of it with liquid paraffin (
A product of the present invention [■]) and a product (comparative product [■]) in which isoparaffin was replaced entirely with liquid paraffin were used.

The results are shown in Table 1.

Table 1 ω) 5℃ and 20℃ from 1 day to 60 days after using the present invention product [l] 1, which consists of the same formulation as that used in the above case and the comparison product CI). , 40°C stability tests were conducted. The results are shown in Table-2.

Table 2 (Evaluation) As shown in Tables 1 and 2 above, in the case of the present invention product (1) and the present invention product (II) using a volatile oil agent, the comparison without using a volatile oil agent It can be seen that the present invention is much more effective in most items in the sensory evaluation, and also has better stability. In particular, the present invention is superior in that it does not accumulate on the skin after application due to its volatility and is free from oiliness.

[Examination ■]

(A-1) The samples for sensory evaluation were Example 3 of the present invention described later (inventive product [■]), a product in which half of the Marvit in its formulation was replaced with glycerin (comparative product [■]), and a product that also contained Marvit. A product in which the entire amount of glycerin was replaced (comparative product [■]), a product in which the entire amount was replaced with 3-butylene glycol (comparative product (IV)) were used. The results are shown in Table 3.

Ken-3 CB-II) The present invention product [■], which has the same formulation as that used in (A-I) above, the comparative product [■), and the comparative product (
[5℃, 2 after 1 day and 30 days using 3 and comparative product (IV)
We conducted stability tests at 0℃ and 40℃. The results are shown in the table-
As shown in 4.

Table 4 (Evaluation) In Tables 3 and 4 above, the effects of the present invention are significantly superior to the comparative products.

[Examination ■]

(A-m) As samples for sensory evaluation, Example 5 of the present invention (present invention product [■]) described later and Marubit) f in its formulation were used.
Use a product (comparative product (V)) in which the entire amount of water-soluble amino acid (glumebonic acid) is replaced. The results are summarized in Table-5.

Table 5 (B-m) 5 after 7 days and 1 month using the present invention product CI%') and the comparative product [:V], which have the same formulation as that used in (A-m) above. ℃、20℃、40℃
Stability tests were conducted. The results are shown in Table 6.

Table 6 (Evaluation) Also in Tables 5 and 6 above, the effects of the present invention are significantly superior to the comparative products.

[Examination ■]

The samples for the sensory evaluation were the under-make-up composition of Example 1 of the present invention (present invention product CI) described later) and a hydrophilic surfactant (a mixture of polyoxyethylene (20), tan, and sodium stearate (2: 1)) A conventional under make-up agent (comparative product [■]) was used. The results are shown in Table 70.

Table 7 [Test V] The samples for the sensory evaluation were the mascara of Example 8 of the present invention (present invention product [V]), which will be described later, and a conventional mascara using a water-soluble polymer (polyvinyl acetate) (comparative product [V]). ■〕) was used. The results are shown in Table 80.

Table 8 [Test ■] As a sample for sensory evaluation, Fa.
Conventional oil-in-water foundation using a hydrophilic surfactant (polyoxyethylene (25) stearate and sodium stearate mixture (2:x)) I used Yoi (comparison product [■]). The result is -90 letters.

Table 9 (Evaluation) The under makeup composition, mascara, and 7 undertones according to the present invention, which are clear from Tables 7 to 9 above, are as follows:
It is clear that both of these products have far superior effects not found in conventional comparative products.

As described above in detail, the emulsion soap in oil of the present invention can be applied to the skin as a cream for cosmetics, pharmaceuticals, etc., an acetate, an ointment, etc. The present invention provides a makeup product that is free from bad skin, oiliness, stickiness, etc., blends well into the skin, and has excellent long-lasting makeup. In addition, even when it has a high internal phase ratio, it is stable and safe, does not leave the oily feel of the oil on the skin, spreads lightly, and has a natural makeup effect without making the skin feel tight. Moreover, when used for cleansing, it has the effect of easily removing dirt from the skin. In addition, in cosmetics such as under-make-up products, mascaras, and foundation powders, there is no need to use hydrophilic surfactants as in the past, so there is almost no makeup smearing, long-lasting makeup, and water resistance. Mild and moisturizes the skin 9
It gives a feeling of comfort, has excellent moisturizing effects, and provides an exceptional makeup effect.

In addition to the above-mentioned cosmetics and pharmaceuticals, the present invention can be applied to cleaning products such as shampoos, conditioners, treatments, etc., hair cosmetics, and various other fields due to the usability and stability of the water-in-oil emulsion. This is a useful invention.

Implementation 1PIl is shown below. The content ratio of each component is -
It is.

Example 1 Under make-up B [Marvit (50% aqueous solution)] 10. O
D [Water 75.8 (manufacturing method)
Dissolve A and CI by heating at approximately 80°C to create an oil phase, and DK
An aqueous phase in which B is dissolved is gradually added to this oil phase to emulsify it to obtain a water-in-oil type target product.

In the emulsion with the above composition, the volatile oil agent (imparaffin) in the continuous phase has properties as a solvent, has cleansing function, and has excellent tactile functions as a cleansing agent, as well as hydrophilic properties. Since no surfactant was used, the makeup was less likely to come off. This was made possible for the first time by a water-in-oil emulgene and dosage form containing a volatile oil.

Example 2 Under makeup agent diglycerin 1. OD [
Water 75.0 (manufacturing method)
A water-in-oil type target product was obtained in the same manner as in Example 1 above.

The resulting emulsion had a cleansing effect and was resistant to makeup smearing.

Example 3 Under make-up B [Marvit (50% water solution) 10.0
D [Water 748 (manufacturing method)
A target object of a water-in-oil basin was obtained in the same manner as in Example 1 above.

The resulting emulsion has a cleansing effect.

The makeup did not easily come off.

Example 4 Under makeup agent D [Water 758 (manufacturing method)
The object of the oil-submerged basin was obtained in the same manner as in Example 1 above.

Implementation 915 Under makeup agent D [Water 75.8 (Production method)
A water-in-oil type target product was obtained in the same manner as in Example 1 above.

The resulting emulsion had a cleansing effect and was resistant to makeup smearing.

Example 6 Under makeup charge B I T 0.1D [
Water 64.0 (Production method) A water-in-oil target product was obtained in the same manner as in Example 1 above.

The resulting emulsion had a strong cleansing effect and did not easily remove makeup.

Example 7 Under makeup agent D [water 70.0 (manufacturing method)
A water-in-oil type target product was obtained in the same manner as in Example 1 above.

The resulting emulsion has a cleansing effect.

It's something that won't leave your makeup smeared easily.

Example 8 Mascara 1% (-r ruby) (50% aqueous solution) & OE [water
66.0 (manufacturing method) A and C 70
Heat and dissolve at ℃, disperse D in this to create an oil phase, then dissolve B'' in E and gradually add the water phase to the oil phase to emulsify. Purpose of water-in-oil type. get something

The emulsion having the above composition is a mascara with excellent water resistance. This mascara is different from conventional mascaras that use water-soluble polymers, and takes advantage of the good feel of an emulsion system.
It was a mascara that had a strong film with excellent water resistance and was hard to remove makeup. This is because the main component is highly volatile, and the remaining film is a wax film that spreads.
In that sense as well, the water resistance was good.

Example 9 Mascara E [Water 5 & 7 (Production method) A water-in-oil type target product was obtained in the same manner as in Example 8 above.

The resulting emulsion had excellent water resistance and volatility, and was resistant to makeup deterioration.

Example 1O Mascara E [Water 49.0 (Production method)
A water-in-oil type target product was obtained in the same manner as in Example 8 above.

Example 11 Mascara Microcrystalline Wax 20 (Production method)
A water-in-oil type target product was obtained in the same manner as in Example 8 above.

The resulting emulsion had excellent water resistance and volatility, and was resistant to makeup deterioration.

Example 12 Mascara Sorbitan Monolaurate ZO Polyglycerin 1.0 Red Iron Oxide
3. OE [purified water
60.0 (Production method) Example 8 above
A water-in-oil target product was obtained in the same manner as above.

The resulting emulsion had excellent water resistance and volatility, and was resistant to makeup deterioration.

Example 13 Foundation 4.0 B (-v Rubit (5 (l aqueous solution) 1 & OC [butylparaben 0.2 dye
Appropriate amount E [water
56.8 (Production method) A and cps are heated and dissolved at 0°C, and D is dispersed therein to prepare an oil phase. Then, the aqueous phase dissolved with EKB is gradually added to the oil phase to emulsify and obtain a water-in-oil target product.

The emulsion having the above composition is an emulsion-type foundation that does not require makeup suppressing powder. Conventional powder-type foundations have a poor moisturizing effect on the skin, but in the case of the present invention, it provides the same amount of finish as powder but provides an appropriate amount of moisture to the skin, and has excellent moisturizing effects. This type of foundation can also be made with an oil-in-water emulsion, but since oil-in-water emulsification with a volatile oil requires a hydrophilic surfactant, the makeup tends to come off easily. Compared to the water-in-oil type, its cosmetic effects are significantly lower.

Since the present invention does not require a hydrophilic surfactant, it is possible to provide a product with almost no makeup smearing.

Implementation 14 Foundation Gin C [Butylparaben 0.2E
[Water 64.0 (Production method) A water-in-oil target product was obtained in the same manner as in Example 13 above.

The resulting emulsion gives the skin the right amount of moisture, firmness, and firmness.
It had a moisturizing effect, and the makeup did not easily come off.

Example 15 7 Andesi Proverbs C [Butylparaben 0.2
E [Water 41.2 (Production method)
A target object of a water-in-oil basin was obtained in the same manner as in Example 13 above.

Implementation 9iIl16 Foundation damage C [Butyl paraben 0.2 titanium oxide
10E [Wednesday]
55.0 (Production method) A water-in-oil type target product was obtained in the same manner as in Example 13 above.

The resulting emulsion gives the skin a moderate amount of moisture and firmness,
It had a moisturizing effect and was hard to get rid of makeup.

Implementation 91117 Foundation C [Butylparaben 0.2E
[Water 60.8 (manufacturing method)
A water-in-oil type target product was obtained in the same manner as in the above example.

The obtained emulsion gave the skin a moderate amount of moisture and moisturizing effect, had a moisturizing effect, and was hard to remove makeup.

Example 18 Cream (manufacturing method) A was uniformly dissolved at 80°C to prepare an oil phase. Separately, the aqueous phase of B, which had been uniformly dissolved at 80°C, was gradually added to the oil phase. An emulsified water-in-oil target product was obtained.

The obtained emulsion had good blending and spreadability on the skin, was neither oily nor sticky, did not leave an oily feeling on the skin, had excellent makeup retention, and did not leave a sticky feeling on the skin.

Example 19 Cleansing Cream (Production Method) A water-in-oil type target product was obtained in the same manner as in Example 18 above.

Example 20 Cleansing Cream (Production Method) A water-in-oil type target product was obtained in the same manner as in Example 18 above.

Example 21 Disinfectant ointment Cyclic dimethylpolysiloxane (viscous [IC, S,) Isoparaffin (C, ~Co) & 0 Vaseline zO Candelilla wax 20 Polyoxyethylene (2) Oleyl ether 4.0 Malpitt
&0 water
71. .

Hibitengluconate 20 liquid 1.0 (M method) A water-in-oil type target product consisting of the above formulation was prepared in a conventional manner.

Claims (1)

[Scope of Claims] 1. In a water-in-oil emulsion consisting of an oil agent, a lipophilic surfactant, a polyhydric alcohol having three or more hydroxyl groups in the molecule, and water, one type of volatile oil agent or 2
A water-in-oil emulsion characterized by containing at least one species. 2. Volatile oil agent 5-50% (% by weight based on the total weight of the water-in-oil emulsion composition, the same applies below), lipophilic surfactant 1-20%, 3 in the molecule Polyhydric alcohol having hydroxyl groups of 1 to 60%
The water-in-oil emulsion according to claim 1, which contains 30 to 90% of water. 3. The water-in-oil emulsion is a water-in-oil emulsion having a high internal phase ratio in which the ratio (weight ratio, the same applies hereinafter) of oil phase components to water phase components is 1:2 to 1:9. A water-in-oil emulsion according to claims 1 and 2. 4 The oil agent is a low boiling point hydrocarbon or silicone oil.
The water-in-oil emulsion according to claims 1 to 3, which is a volatile oil agent selected from one or more types. 5. Claims in which the oil is one or more volatile oils selected from the group consisting of linear, branched, or cyclic hydrocarbons having 6 to 15 carbon atoms or silicone oils with a boiling point of 200°C or less. A water-in-oil emulsion according to items 1 to 4. 6. Water-in-oil according to claims 1 to 5, wherein the lipophilic surfactant is one or more selected from lipophilic surfactants with an HLB value of 1 to 10. type emulsion. 7. The lipophilic surfactant is polyglycerin ester,
selected from the group consisting of glycerin pyroglutamic acid monofatty acid esters, polyglycerin ethers, polyoxyethylene alkyl ethers, polyoxyethylene hydrogenated castor oil esters, sorbitan fatty acid esters, polyoxyethylene polyoxypropylene phytostanol esters The water-in-oil emulsion according to claims 1 to 6, which contains one or more types. 8. Polyhydric alcohols having three or more hydroxyl groups in the molecule include glycerin, diglycerin, triglycerin, polyglycerin, aravit, sorbitan, sorbitan, mannitan, marbit, maltose, mannit, xylit, glucose, raffinose, multi The water-in-oil emulsion according to claims 1 to 7, which is one or more selected from tall, sucrose, lactose, dextrin, pentaerythritol, and the like. 9. A water-in-oil emulsion according to claims 1 to 8, which contains a coloring material.