JPH09194331A - Oil-in-water-type solid emulsified cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare the subject cosmetic having touch feeling such as freshness, refreshingness and nonstickiness when applied, excellent in portability and convenient to use, capable of rendering poil foramen of the skin less noticeable, also, having skin protectiveness against ultraviolet radiation. SOLUTION: This oil-in-water-type solid emulsified cosmetic comprises (A) 0.1-10wt.% of at least one kind of wax ester composed of segment derived from an 18-34C higher fatty acid and segment derived from an 18-44C higher aliphatic alcohol, (B) 0.5-10wt.% of at least one kind of amphoteric surfactant, (C) 0.005-20wt.% of at least one kind of titanium dioxide selected from ultrafine particulate titanium dioxide, lamellar titanium dioxide, needlelike titanium dioxide, and spherically particulate titanium dioxide powder, and (D) 0-10wt.% of at least one kind of a 6-34C higher fatty acid. This cosmetic has a moderate hardness, therefore, for example, can be easily taken at a desired amount by finger(s), sponge or puff when to be applied, is reduced in cracking tendency in the products and prevented from volatility. This cosmetic can be prepared into a form of foundation, eyeshadow, lipstick, etc.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an oil-in-water type solid emulsion cosmetic, and more specifically, a foundation,
The present invention relates to an oil-in-water type solid emulsified cosmetic provided in the form of eye shadow, lipstick and the like.

[0002]

2. Description of the Related Art Conventionally, as a type of solid cosmetics,
Commonly used ones are a solid oily type in which oil is solidified with wax, a solid press-like type in which powder or a mixture of powder and an oil agent is pressed, a specific oily solidifying agent, a hydrophobized powder, and water. There are solid water-in-oil type emulsion type and the like composed of a lipophilic surfactant, which are used properly according to the purpose and method of use of the cosmetic.

Of these, the solid water-in-oil type emulsion type has particularly good stability and water resistance and has a moisturizing feel. For example, silicone oil, solid wax and water are used. An emulsion of polyoxyalkylene-modified organopolysiloxane is known (JP-A-64-79104). However, since such a water-in-oil emulsion type contains an oil component and an oil-based solidifying agent in the outer phase, compared to an oil-in-water emulsion or cream,
It is inferior in terms of "freshness", "freshness" and "non-stickiness".

As a solidified product of the oil-in-water emulsion type, an example in which a large amount of higher alcohol or clay mineral is blended is known. However, this oil-in-water emulsion type has the above-mentioned components mixed in a large amount, so that the "water freshness" and "freshness" originally possessed by oil-in-water emulsions and creams.
It has lost its "non-stickiness". Other examples of solid oil-in-water emulsion type, for example,
Those obtained by solidifying the water in the outer phase with fatty acid soap (JP-A-3-279319), and those obtained by using a water-soluble solidifying agent such as agar and a water-soluble adhesive such as a cellulose derivative together to solidify ( JP-A-5-178723 and JP-A-7-17828) are known. However, the former had a problem that the pH was high due to the large amount of soap, and there was a problem in terms of skin irritation and safety, and the latter did not have sufficient hardness and was difficult to use with a sponge. .

Further, as an emulsification technique developed in recent years, there is a technique of forming a water-insoluble complex with an amphoteric surfactant and a higher fatty acid, and this complex serves as an interfacial film for emulsification to secure the emulsion stability. It is known (Japanese Patent Application No. 3-166367)
No.), it is difficult to obtain a solid emulsification type one having "freshness", "freshness" and "non-stickiness" even by using such a technique.

On the other hand, emulsions and creams generally have a temperature of 0 ° C to 5 ° C.
It has fluidity in the range of 0 ° C., and therefore it becomes a bottle or a tube container form, which is slightly inferior in terms of portability and usability, and especially in the case of foundation.

Due to such a background, it is a solid type which is easy to carry and use, and which has a feeling of use such as "freshness", "freshness" and "non-stickiness" of emulsion or cream. The fact is that a pattern-type emulsion composition has not been obtained.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a feeling of use such as "freshness", "freshness" and "non-stickiness" of oil-in-water type emulsions and creams, and portability. Another object of the present invention is to provide a solid cosmetic which is excellent in usability and which has invisible pores and, if necessary, also has an ultraviolet blocking effect.

[0009]

Means for Solving the Problems The inventors of the present invention have conducted extensive studies to achieve the above-mentioned object and found that a specific wax ester and an amphoteric surfactant are used in combination.
Alternatively, it has been found that a solid oil-in-water type emulsion composition which is stable and has excellent feeling in use can be obtained by further using a higher fatty acid in combination with both components. The above problem could be solved by further adding spherical powder and / or titanium oxide having a specific shape to the composition thus obtained.

Therefore, according to the present invention, there is provided an oil-in-water type solid cosmetic composition comprising water, a wax ester, and one or more components to be mixed with other cosmetics, wherein the total weight of the cosmetic composition is On the basis, one or more wax esters having a portion derived from a C _18-34 higher fatty acid and a portion derived from a C _18-44 higher fatty alcohol as constituent components (A) 0.1 to 10.0 % By weight, (B) 0.5 to 10.0% by weight of one or more amphoteric surfactants, (C) ultrafine titanium oxide, plate-like titanium oxide and acicular titanium oxide, and spherical powder. A solid cosmetic composition comprising 0.005 to 20% by weight of at least one selected titanium oxide, and (D) 0 to 10.0% by weight of one or more C _6-34 higher fatty acids. Provided.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The term "solid" or "solid" as used in the present invention means that a composition or ingredient does not show fluidity at a temperature of 50 ° C or lower, which is a usual and erroneous statement. It means that it does not show any significant deformation under the conditions of use and storage. Specifically, a desired amount can be taken from a fixed-form composition or ingredient using a finger, a sponge, a puff, or the like, and the remaining portion has a hardness that can maintain almost the original shape. It means that you are in a state you have.

More specifically, such hardness has a hardness (γ) represented by the following formula of 7 when measured using a hardness meter (rheometer) commonly used in the art at 37 ° C. It is necessary to be above.

[0013]

[Equation 1]

In the formula, G: measured stress (gr) × 980 dyn L: sample thickness (mm) l: compression distance (mm) a: cross-sectional area of needle (cm ² ) (measurement condition) load weight: 2 kg of needle Diameter: 5.6φ Penetration speed: 2 cm / min Penetration distance: 1 mm Measuring temperature: 37 ° C. On the other hand, for the purpose of the present invention, the cosmetic composition according to the present invention uniformly mixes or emulsifies each of the constituent components thereof. In order to be able to do so, it is preferable to have appropriate fluidity at a temperature above 50 ° C.

In the following, the description will be given mainly with the case in which the cosmetic of the present invention is applied to a foundation, but those skilled in the art can use the above hardness as an index depending on the purpose. It would be easy to choose other combinations. Therefore, the present invention is not limited by the following limited description.

The wax ester used in the present invention is in a waxy state at room temperature and has a higher (or long chain) C _18-34.
Portions derived from fatty acids and C _18-44 higher (or long chain)
It is a carboxylic acid ester composed of fatty alcohol. The aliphatic group of these fatty acids and fatty alcohols may be either a straight chain or a branched chain, and may be either a saturated or unsaturated aliphatic group. It is preferable to select

The C _18-34 higher fatty acids constituting the wax ester are specifically C ₁₈ octadecanoic acid (stearic acid), C ₂₀ icosanoic acid (arachidic acid), C ₂₂ docosanoic acid (behenic acid), C ₂₄ tetracosanoic acid (lignoceric acid), C ₂₆ hexacosanoic acid (cerotic acid), C
₂₈ octacosanoic acid (Montanic acid), C ₃₀ triacontanoic acid (Melysinic acid), C ₃₂ dotriacontanoic acid, C
Various natural wax components such as ₃₄ tetratricontanoic acid may be included, either by themselves or in the form of esters. The names in parentheses above are conventional names.

The above-mentioned fatty acids having an even number of carbon atoms are generally used in view of availability, but fatty acids having a carbon number of an even number of carbon atoms such as C ₁₉ nonatecanic acid (nonadecyl acid) and C ₃₃ tritriacontanoic acid are also available. , As long as they are available, they are not excluded from fatty acids of the above carbon numbers. Further, the aliphatic group may be branched, and for example, C contained in the fatty acid composition of lanolin.
_At least one _18-32 isofatty acid (even carbon number) and C _19-33 anteisofatty acid are also included in the fatty acids constituting the wax ester of the present invention.

Further, the fatty acids constituting these wax esters are hydrogenated unsaturated fatty acids having the above carbon number, or lower alkyls of hydroxy fatty acids corresponding to the above fatty acids, such as methyl, ethyl, Also included are those which are etherified with propyl.

Among these, more general ones include, for example, C ₂₂ behenic acid which constitutes a wax ester of rapeseed wax, and C ₂₄ lignoceric acid (carnauba wax which constitutes a wax ester of rice bran oil wax). Is also included), C that constitutes the wax ester of lanolin
₂₆ Cerotic acid, C ₂₈ montanic acid constituting a wax wax ester of shellac wax, C ₃₀ melicinic acid constituting a wax ester of candelilla wax and C ₃₂ dotriacontanoic acid, C constituting a wax ester of shellac wax Tetratriacontanoic acid of ₃₄ can be mentioned as a fatty acid constituting the wax ester of the present invention.

On the other hand, C constituting the wax ester
_18-44 higher fatty alcohols include alcohols corresponding to the above fatty acids, for example, C ₁₈ stearyl alcohol, C ₂₀ icosanol, C ₂₂ docosanol, C ₂₄ tetracosanol, C ₂₆ hexacosanol, C Common examples include ₂₈ octacosanol, C ₃₀ myricyl alcohol, C ₃₂ rasserol, C ₃₄ tetratriacontanol, and even C ₄₄ tetratetracontanol. Also, branched alcohols such as 1
6-methyloctadecanol, 18-methylnonadecanol, 18-methylicosanol, 20-methylhenicosanol, 20-methyldocosanol, 22-methyltricosanol, 24-methylpentacosanol, etc. Primarily included are those found in lanolin.
In addition, a variety of alcohols having the above-mentioned carbon numbers are also included in the higher fatty alcohol, which are obtained by chemical synthesis.

Thus, the wax esters used in the present invention include all those which consist of any combination of one C _18-34 higher fatty acid and one C _18-44 higher fatty alcohol. . Such wax ester may be a mixture of two or more kinds.

[0023] Generally, such wax esters are formulated with natural wax components such as Candelilla wax.
ax), Carnauba wax, Jojoba oil (Jo
jobaoil), Lanolin, Montan wax
n wax), a higher fatty acid derived from rice wax, etc., and a higher fatty alcohol derived from these waxes can be conveniently used. The wax ester composed of a portion derived from these fatty acids and a portion derived from an alcohol may be an ester synthesized from individual fatty acids and alcohols, but it is separated from the waxes by extraction or the like. Good.

Specific wax esters include, for example, C ₂₀ fatty acid-C ₂₀ alcohol derived from candelilla wax, carnauba wax, jojoba oil, or montan wax, C
₂₀ fatty -C ₃₀ alcohols, C ₂₄ fatty -C ₂₈ alcohols, C ₂₄ fatty -C ₃₀ alcohols, C ₂₄ fatty -C ₃₂ alcohols, C ₂₆ fatty -C ₃₀ alcohols, C ₂₆ fatty acid -
C ₃₂ alcohol, C ₂₈ fatty acid-C ₂₄ alcohol, C ₂₈ fatty acid-C ₂₈ alcohol, C ₂₈ fatty acid-C ₃₀ alcohol,
C ₃₀ fatty -C ₂₈ alcohols, C ₃ - fatty -C ₃₀ alcohols, C ₃₀ fatty -C ₃₂ alcohols, C ₃₂ fatty -C
_It may be composed of any combination of ₃₀ alcohol, C ₃₂ fatty acid-C ₃₂ alcohol, C ₃₄ fatty acid-C ₃₀ alcohol, C ₃₄ fatty acid-C ₃₂ alcohol, and the like.
Naturally, the ester composed of the above combination may be either chemically synthesized or extracted from natural wax.

The commercially available products obtained by chemical synthesis and included in the wax ester of the present invention include, for example, clodamol ODL [C which is a reaction product of a lanolin fatty acid and 2-octyldodecyl alcohol.
RODAMOL ODL, trade name, Croda Japan Co., Ltd.] can be mentioned.

Further, among the above-mentioned natural waxes, those having a composition which does not adversely affect the purpose of the present invention can be used as they are together with the wax ester component of the present invention. A composition that does not have an adverse effect is, for example,
Carnauba wax, which contains an excessive amount of hydroxy ester, tends to cause separation during emulsification of the composition and is unlikely to solidify, and thus should be used with caution.

The amphoteric surfactant that can be used in the present invention may be any amphoteric surfactant that is commonly used in cosmetics bases and the like. To give a concrete example,

[0028]

Embedded image

Amidobetaine type amphoteric surfactant represented by the formula [commercially available products include Levon 2000 (manufactured by Sanyo Kasei), Anon BDF (manufactured by NOF CORPORATION), and the following formula:

[0030]

Embedded image

Amidosulfobetaine-type amphoteric surfactant represented by the formula [commercially available products include Lonzain-CS (manufactured by Lonza), Miradyne CBS (manufactured by Milanol) and the like],
Next formula

[0032]

Embedded image

A betaine-type amphoteric surfactant represented by the formula [Anon BL (manufactured by NOF CORPORATION), Deheinton A as a commercial product]
B-30 (made by Henkel), etc.], the following formula

[0034]

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Sulfobetaine-type amphoteric surfactant represented by [Lonzain 12CS (manufactured by Lonza) as a commercial product], the following formula

[0036]

Embedded image

Examples thereof include imidazolinium-type amphoteric surfactants [commercially available products include Obazoline 662-N (manufactured by Toho Kagaku) and Anon GLM (manufactured by NOF Corporation)]. The oil-in-water type solid emulsified cosmetic composition of the present invention generally has a wax ester content of 0.1 to 10 based on the total weight thereof.
10.0% by weight, preferably 1.0-5.0% by weight, and generally 0.5-10% by weight of amphoteric surfactant, preferably 0.5-1.5% by weight, are included. The wax ester may contain the corresponding hydroxy wax ester in an amount of less than 40% by weight based on the total weight of the wax ester. These wax esters and amphoteric surfactants may each be a mixture of two or more kinds.

If the content of the wax ester in the cosmetic of the present invention is less than 0.1% by weight, it becomes difficult to solidify, and if it exceeds 10% by weight, the final product "freshness" and "refreshing""Is reduced and" stickiness "tends to appear. Further, if the content of the amphoteric surfactant in the composition is less than 0.5% by weight, emulsification becomes difficult, and conversely, if it exceeds 10.0% by weight, safety problems may occur.

The cosmetic of the present invention contains C as an optional ingredient.
_{Contains 6-34} higher fatty acids. The use of such fatty acids is
Generally, it acts to increase the stability of the cosmetic of the present invention in a solid state. Specific examples of such a fatty acid include, in addition to the higher fatty acids exemplified as the constituents of the wax ester, for example, C ₆ hexanoic acid (caproic acid) C ₈ octanoic acid (caprylic acid) or 2- Ethylhexanoic acid, C ₁₀ decanoic acid (capric acid), C ₁₂ dodecanoic acid (lauric acid), C ₁₄ tetradecanoic acid (myristic acid), C ₁₆ hexadecanoic acid (palmitic acid)
Can be mentioned as a general one, but it does not exclude fatty acids each having an odd number of carbon atoms which is increased by one. When a longer chain fatty acid is used, the corresponding hydroxy fatty acid, for example, 12
-Hydroxystearic acid can also be used, so the fatty acids referred to in the present invention also include hydroxy fatty acids.

The oil-in-water type solid emulsified cosmetic composition of the present invention comprises:
In some cases, based on its total weight, generally 0.1 to 1
It may be included in an amount of 0.0% by weight, preferably 0.1 to 2.0% by weight. These higher fatty acids may be a mixture of two or more. Generally, if the content of the higher fatty acid is less than 0.1% by weight, the emulsion stability may be reduced, and conversely, if it exceeds 10.0% by weight, there is a high possibility that a problem in use safety may occur. .

When the higher fatty acid is included,
The molar ratio of higher fatty acid / amphoteric surfactant is 1:15 to 1:
It is better to use it so that it is 08. If it is less than 1:15, emulsification may be difficult, and if it exceeds 1:08, an oil-in-water solid emulsified cosmetic composition may not be formed.

In the present invention, titanium oxide having a specific shape and / or spherical powder is contained as a further essential component.

Specific examples of titanium oxide include ultrafine granular, plate-like and acicular titanium oxide, and usually one or a combination of two or more of these forms of titanium oxide is used. . The amount used is not limited as long as the object of the present invention can be achieved, but is usually 0.1 to 20% by weight based on the total weight of the solid cosmetic composition. As for the compounding method, it is included in a general powder part and mixed with other components at the time of preparing a cosmetic. Addition of these components does not limit the action of the cosmetic composition of the present invention, but generally, although it may bring about a decrease in hardness of the solid cosmetic product within an allowable range, it improves the ultraviolet protection action. At the same time, it helps to make the pores less noticeable. It should be noted that the use of needle-shaped titanium oxide generally tends to reduce the hardness of cosmetics, and therefore the amount of use thereof needs to be carefully monitored.

Specific examples of the spherical powder include:
Examples thereof include spherical silica, spherical nylon powder, spherical alkyl polyacrylate, crosslinked polystyrene-squalane mixed powder, cellulose powder, silicic acid anhydride powder, and methylsiloxane network polymer powder. One or more of these may be generally included in an amount of 0.005 to 20% by weight based on the total weight of the solid cosmetic composition. Addition of these components does not limit the action of the cosmetic composition of the present invention, but it mainly hides pores on the skin when using a solid cosmetic composition, improves texture, or improves sebum adsorbability. To help.

In the present invention, as described above, a substantial amount of components that do not adversely affect the physical properties of the solid cosmetic composition may be contained. Higher hydrocarbons can be included as a relatively large amount. In particular, the higher (long chain) hydrocarbons contained in the natural wax are often useful for stabilizing the solid state or enhancing the usability. These are usually 5
Those having a melting point above 0 ° C. are preferred. Specific examples include pentacosane (C ₂₅ H ₅₂ ), heptacosane (C ₂₇ H ₅₆ ), gentriacontane (C ₃₁ H ₆₄ ), dotriacontane (C ₃₂ H ₆₆ ), squalene (C
₃₀ H ₅₀ ), and the like derived from beeswax, carnauba wax, candelilla wax, and other animal and vegetable oils, and hydrogenated products thereof such as squalane, which is a hydrogenated product of squalene.

These hydrocarbons can be added in an amount exceeding the amount of the wax ester used, as long as it does not adversely affect the physical properties of the cosmetic composition of the present invention. It can also be used.

Therefore, it may be convenient to use, for example, candelilla wax itself in the cosmetic of the present invention.

Furthermore, the cosmetics of the present invention have other common or specific purposes, for example, increase in hardness, prevention of cracking,
One or more kinds of components for improving the prevention of water evaporation can be included. These components include silicone oils, ester oils, higher alcohols, water-soluble polymers, and fatty acid esters of ethylene glycol or glycerol.

The oil-in-water type solid cosmetic composition of the present invention may further contain components that can be blended with other cosmetic compositions. They are, for example, oils, moisturizers, dispersants, powders, preservatives, fragrances, drugs, thickeners, dyes, pigments, etc. other than those mentioned above.

According to the present invention, the obtained oil-in-water type solid emulsified cosmetic composition maintains a stable solid shape, and when applied to the skin, it has a feeling of use in water when applied to the skin. It has the same "freshness", "freshness" and "non-greasy" as oil-type emulsions and creams, and also has excellent storage stability.

[0051]

The present invention will be described below with reference to specific examples. In addition, the compounding amount in each of the following examples is shown by (weight / weight)% unless otherwise specified. The evaluation of each solid makeup amount was performed according to the following criteria or method.

Measurement of Hardness Each composition was measured using a hardness meter (rheometer) manufactured by FUDO KOGYO CO., According to the measurement conditions described for the above "solid" or "solid". The hardness is measured for each of 20 samples, and the average value of the measurement results is shown.

Volatilization Prevention Effect Each composition was left at room temperature (25 ° C.) in an open system for about 1 hour,
The weight change of each of 20 samples was measured, and the average value of the weight reduction rate with respect to the original weight is classified and shown as follows.

Decrease rate of evaluation (%) ++++ Less than 0.7% ++ 0.7% to less than 1.0% + 1.0% to less than 1.3% ± 1.3% or more Pore conspicuousness 20 An average behavior of the results of visual observation of each person is shown by classifying as follows, after a usage test by a specialized panel of people.

Display of Evaluation Rating +++ Significant improvement is seen * ++ Significant improvement is seen + Slight improvement is seen ± Equivalent to the composition of Example 7 * UV blocking effect where pores are not noticeable UV blocking effect [UV blocking factor (UV-CUT
(SPF))], a usage test was conducted by a panel of 20 people, and after 1 hour, the degree of sunburn (value "1" of the composition without addition of titanium oxide of a specific shape (Example 1))
4 ”).

The evaluation method of "non-stickiness" will be described later.

Example 1 (Reference Example) Oil-in-water emulsion solid cosmetic (foundation) (1) Decamethylcyclopentasiloxane 15.8 (2) Candelilla wax 5.0 (3) Stearic acid 1.0 (4) ) Red iron oxide 1.0 (5) Yellow iron oxide 3.0 (6) Black iron oxide 0.2 (7) Titanium dioxide 10.0 (8) Kaolin 5.0 (9) Talc 25.8 (10) 1,3-Butylene glycol 3.0 (11) Methylparaben 0.2 (12) Ion-exchanged water 25.0 (13) 2-Alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine (Pure content 30% ) 5.0 Preparation methods (1) to (3) are stirred and dissolved at 70 to 80 ° C to form an oil phase portion, and (10) to (13) are stirred and dissolved at 70 to 80 ° C to form an aqueous phase portion. . The water phase part is added to the oil phase part to emulsify, and (4) to (9) which have been stirred and mixed in advance are mixed, poured into a foundation medium plate, and cooled to obtain an oil-in-water emulsion solid cosmetic composition. It was The cosmetic had a fresh, refreshing and non-greasy usability. (Higher fatty acid / amphoteric surfactant (molar ratio) = 0.86) Examples 2 to 5 (invention) Example 1 except that titanium dioxide of various shapes shown in Table 1 was used in place of titanium dioxide of Example 1 A solid emulsified cosmetic composition was prepared with the same composition and method. Table 1 collectively shows the results of evaluation of the hardness, the effect of hiding pores on the skin, the effect of preventing stickiness, and the effect of blocking ultraviolet rays of each of the obtained cosmetics.

[0058]

[Table 1]

From Table 1, when titanium oxide having a specific shape is used in place of titanium dioxide, the hardness of the composition may decrease, but the inconspicuousness of pores and the non-stickiness are slightly improved, and the ultraviolet blocking effect is obtained. It can be seen that is significantly improved.

Examples 6 to 15 (Invention) Solid emulsion cosmetics were prepared by the same composition and method as in Example 1, except that a part of the talc of Example 1 was replaced with the components shown in Table 2. Table 2 shows the results of the evaluation of the hardness of the obtained cosmetics, the inconspicuousness of pores and the non-stickiness when used.

[0061]

[Table 2]

The product names (manufacturer or distributor) used in a) to j) are as follows.

A) Spherical silica P-1500 (Catalyst Chemical Co., Ltd.) b) Nylon SP-500 (Toray Industries, Inc.) c) Fine Pearl 3000SPQ (Sumitomo Chemical Co., Ltd.) d) Microspheres M306 (ethylene glycol dimethacrylate) ( Matsumoto Yushi-Seiyaku Co., Ltd.) e) Celluloflow C-25 (Chisso Co., Ltd.) f) Tospearl 145A (Toshiba Silicone Co., Ltd.) g) Trefil E-506S (Toray Co., Ltd.) h) Neusilin S ₂ (Toyama Chemical Co., Ltd.) i) Ca alginate beads (Nisshinbo Co., Ltd.) j) Spherical polyethylene SS-1 (Steelmaking Chemical Co., Ltd.) As shown in Table 2, the addition of spherical powder was compared to the composition of Example 1 (Reference Example), and solid cosmetics were added. Without adversely affecting the hardness of
It can be seen that the pores on the skin of the subject are made inconspicuous and the stickiness is reduced, resulting in a feeling of use.

Reference examples of solid cosmetics in which addition of titanium oxide having a specific shape or spherical powder gives the same effect as that of the composition of Example 1 are shown together with comparative examples thereof.

Example 16 (Reference Example) Oil-in-water emulsion compact (foundation) (1) Decamethylcyclopentasiloxane 16.8 (2) Stearyl stearate 5.0 (3) Iron oxide red 1.0 (4) Oxidation Iron yellow 3.0 (5) Iron oxide black 0.2 (6) Titanium dioxide 10.0 (7) Kaolin 5.0 (8) Talc 25.8 (9) 1,3-Butylene glycol 3.0 (10) ) Methylparaben 0.2 (11) Ion-exchanged water 25.0 (12) 2-Alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (30% of pure content) 5.0 Preparation method (1), ( 2) is stirred and dissolved at 70 ° C to 80 ° C to form an oil phase portion, and (9) to (12) is stirred and dissolved at 70 ° C to 80 ° C to form an aqueous phase portion. The water phase part was added to the oil phase part to emulsify, and (3) to (8) which had been stirred and mixed in advance were mixed, poured into a foundation medium plate and mixed to obtain an emulsified compact. This compact was fresh, refreshing and non-greasy to use.

Example 17 (Reference Comparative Example) Oil-in-water emulsion composition (1) Decamethylcyclopentasiloxane 16.8 (2) Stearyl hydroxystearate 5.0 (3) Iron oxide red 1.0 (4) Oxidation Iron yellow 3.0 (5) Iron oxide black 0.2 (6) Titanium dioxide 10.0 (7) Kaolin 5.0 (8) Talc 25.8 (9) 1,3-Butylene glycol 3.0 (10) ) Methylparaben 0.2 (11) Ion-exchanged water 25.0 (12) 2-Alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (30% of pure content) 5.0 Same as Preparation Example 16 When produced by the method, unlike Example 16, separation occurred during emulsification.

Example 18 (Reference Example) Oil-in-water emulsion compact (foundation) (1) Octamethylcyclotetrasiloxane 13.69 (2) Dimethylpolysiloxane (6cs) 5.0 (3) Jojoba oil was completely hydrogenated. Things 0.07 (4) Stearyl lactate 0.03 (5) Ceresin 3.0 (6) Dextrin fatty acid ester treated iron oxide red 1.0 (7) Dextrin fatty acid ester treated iron oxide yellow 3.0 (8) Dextrin fatty acid Ester-treated iron oxide black 0.2 (9) Dextrin fatty acid ester-treated titanium dioxide 10.0 (10) Dextrin fatty acid ester-treated sericite 5.0 (11) Dextrin fatty acid ester-treated talc 10.8 (12) Polymethylmethacrylate spherical Powder 10.0 (13) 6,6-Nylon 10.0 (14) Propylene glycol 3.0 (1 5) Dynamite glycerin 5.0 (16) Hyaluronic acid 0.01 (17) Methylparaben 0.1 (18) Ion-exchanged water 15.0 (19) Coconut oil fatty acid amide propyl betaine (net content 30%) 5.0 ( 20) Perfume 0.1 Preparation method The powder was stirred and mixed in the oil phase portion at 70 ° C to 80 ° C, the aqueous phase portion was added, and the mixture was emulsified, then poured into a compact medium plate and cooled to obtain an emulsified compact. This compact was fresh, refreshing and non-greasy to use.

The dextrin fatty acid ester-treated powder used here was prepared by adding 95% by weight of the raw material powder to a 5% by weight solution of dextrin fatty acid ester in Isopar E (manufactured by Exxon Chemical Co.), stirring, desolvating, and drying. It is obtained by crushing.

Example 19 (Reference Example) Oil-in-water emulsified stick foundation (1) Decamethylcyclopentasiloxane 8.9 (2) Squalane 2.0 (3) Fluorocarbon 0.2 (4) Octyldodecyl lanolinate 5.0 (5) Methyl hydroxystearate 2.0 (6) Vaseline 3.0 (7) Silicone treated iron oxide red 1.0 (8) Silicone treated iron oxide yellow 2.5 (9) Silicone treated iron oxide black 0.2 (10) Mica 5.0 (11) Talc 5.0 (12) 1,3-Butylene glycol 5.0 (13) Dynamite glycerin 10.0 (14) Methylparaben 0.2 (15) Ion-exchanged water 25.0 (16) lauryl betaine (purity 40%) 25.0 was prepared in the same manner as in preparation example 16, cooled to emulsified stick fan Day poured into a mold sticks It was obtained ® down. The stick was fresh, refreshing and non-greasy to use.

Example 20 (Reference Example) Oil-in-water emulsion lipstick (1) Liquid paraffin 60.89 (2) Castor oil 0.5 (3) Dimethyl polysiloxane (100 cs) 1.0 (4) Behenyl behenate 3. 0 (5) Octyl hydroxystearate 1.0 (6) Diisostearyl malate 1.0 (7) Iron oxide red 0.3 (8) Iron oxide yellow 1.0 (9) Red No. 204 0.7 ( 10) Red No. 202 0.01 (11) Sodium carboxymethyl cellulose 0.5 (12) 1,3-butylene glycol 3.0 (13) Sorbitol 3.0 (14) Methylparaben 0.1 (15) Ion-exchanged water 20 .0 (16) 2-Alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (30% pure) 4.0 Preparation method Prepared in the same manner as in Example 16, poured into a lipstick mold and cooled. Milk To obtain a lipstick. This lipstick was fresh, refreshing and non-greasy to use.

Examples 21 to 22 (reference examples) and Examples 23 to 27
(Reference Comparative Example) An emulsified composition was produced in the same manner as in Example 16 according to the formulation as shown in Tables 3-4. Of these, Example 21 is a water-in-oil emulsion compact.

Each of the obtained compositions was evaluated for freshness, freshness, non-stickiness, and hardness by the following methods. The results are shown in Examples 16 to 20.
It shows in Table 4 with the result of each composition.

In Table 5, "prototype not possible" means that the emulsion could not be emulsified due to separation during emulsification.

Evaluation method A usage test was conducted by a panel of 20 people, and the evaluation results of each person were averaged.

Evaluation criteria 5 points: Very good.

4 points: Good.

3 points: Slightly good.

2 points: Normal.

1 point: Bad.

0 point: Very bad.

Evaluation display ++: 4 points or more.

+: 3 points or more and less than 4 points.

±: 2 points or more and less than 3 points.

-: 1 point or more and less than 2 points.

-: Less than 1 point.

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[Table 3]

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[Table 4]

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[Table 5]

Example 28 (Reference Example) Oil-in-water emulsion compact (foundation) (1) Octamethylcyclotetrasiloxane 5.69 (2) Dimethylpolysiloxane (6cs) 5.0 (3) Candelilla wax 0.1 ( 4) Ceresin 3.0 (5) 12-Hydroxystearic acid 8.0 (6) Dextrin fatty acid ester treatment Red iron oxide 1.0 (7) Dextrin fatty acid ester treatment Yellow iron oxide 3.0 (8) Dextrin fatty acid ester treatment Iron oxide black 0.2 (9) Dextrin fatty acid ester treated titanium dioxide 10.0 (10) Dextrin fatty acid ester treated sericite 5.0 (11) Dextrin fatty acid ester treated talc 10.8 (12) Polymethylmethacrylate spherical powder 5 0.0 (13) 6,6-Nylon 5.0 (14) Propylene glycol 3.0 (15) Na chromite Glycerin 5.0 (16) hyaluronic acid 0.01 (17) Methylparaben 0.1 (18) coconut oil fatty acid amide propyl betaine (purity 30%) 30.0 (19) Perfume 0.1 Preparation 70 The powder was stirred and mixed in the oil phase portion at 80 ° C., the aqueous phase portion was added, and after emulsification, the mixture was poured into a compact medium plate and cooled to obtain an emulsified compact. This compact was fresh, refreshing and non-greasy to use. (Higher fatty acid / amphoteric surfactant (molar ratio) = 1.0
8) As for the dextrin fatty acid ester-treated powder used here, 95% by weight of the raw material powder was added to a 5% by weight solution of dextrin fatty acid ester in Isopar E (manufactured by Exxon Chemical Co.), stirred, desolvated, dried and pulverized. It was obtained by doing.

Example 29 (Reference Example) Oil-in-water emulsified stick foundation (1) Decamethylcyclopentasiloxane 2.9 (2) Squalane 2.0 (3) Fluorocarbon 0.2 (4) Candelilla wax 10.0 ( 5) Vaseline 3.0 (6) Isostearic acid 3.0 (7) Silicone treated red iron oxide 1.0 (7) Silicone treated yellow iron oxide 2.5 (9) Silicone treated black iron oxide 0.2 (10) Mica 5.0 (11) Talc 5.0 (12) 1,3-Butylene glycol 5.0 (13) Dynamite glycerin 10.0 (14) Methylparaben 0.2 (15) Ion-exchanged water 40.0 (16) Lauryl dimethylaminoacetic acid betaine (40% of pure content) 10.0 It was manufactured by the same method as in Preparation Example 1, poured into a stick mold and cooled to obtain an oil-in-water emulsion stick foundation. The stick was fresh, refreshing and non-greasy to use. (Higher fatty acid / amphoteric surfactant (molar ratio) = 0.72) Example 30 (Reference example) Oil-in-water emulsion lipstick (1) Liquid paraffin 60.69 (2) Castor oil 0.5 (3) Dimethylpolysiloxane (100 cs) 1.0 (4) candelilla wax 3.0 (5) carnauba wax 1.0 (6) 12-hydroxystearic acid 0.1 (7) olein 0.1 (8) diisostearyl malate 1. 0 (9) Red iron oxide 0.3 (10) Yellow iron oxide 1.0 (11) Red No. 204 0.7 (12) Red No. 202 0.01 (13) Sodium carboxymethyl cellulose 0.5 (14) 1 , 3-Butylene glycol 3.0 (15) Sorbitol 3.0 (16) Methylparaben 0.1 (17) Ion-exchanged water 20.0 (18) 2-Alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium Betaine (30 net ) 4.0 was prepared in the same manner as in Preparation Example 1 to obtain an oil-in-water emulsion lipstick was cooled poured into a mold of the lipstick. This lipstick was fresh, refreshing and non-greasy to use. (Higher fatty acid / amphoteric surfactant (molar ratio) = 0.1
0) Examples 31 to 37 (Reference Example), Examples 38 to 46 (Reference Comparative Example) An oil-in-water emulsion composition was produced in the same manner as in Example 1 with the compounding recipes shown in Tables 6 to 8. The table also describes the formulation of Example 1 for reference.

Each of the obtained compositions was evaluated for freshness, freshness, non-stickiness, and hardness by the above-mentioned evaluation methods. The results are shown in Tables 10-11.
Shown in

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[Table 6]

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[Table 7]

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[Table 8]

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[Table 9]

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[Table 10]

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[Table 11]

From Table 5, Table 10 and Table 11, the addition of the specific wax ester, amphoteric surfactant, and optionally higher fatty acid used in the solid cosmetic of the present invention was confirmed to be "fresh" of the cosmetic. It can be seen that it has a significant effect on the maintenance of "freshness", "non-greasiness" and "hardness", and imparts excellent physical properties to the solid cosmetic composition in combination with titanium oxide having a specific shape or spherical powder.

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EFFECTS OF THE INVENTION Moderate hardness, for example, when used, it is easy to collect a desired amount with a finger or a sponge or puff, and the cracking tendency of the product is reduced, and moisture and the like volatilize from the product. Provided is a solid cosmetic material having a protected property. This solid cosmetic also has an excellent feeling of use such as refreshingness, freshness and non-greasiness, and an ultraviolet blocking effect.

Claims (1)

[Claims] 1. An oil-in-water type solid emulsified cosmetic comprising water, a wax ester, and one or more components mixed with other cosmetics, and based on the total weight of the cosmetic, (A) One or more wax esters having a part derived from a C _18-34 higher fatty acid and a part derived from a C _18-44 higher fatty alcohol as constituent parts, 0.1 to 10.
0% by weight, (B) 0.5 to 10.0% by weight of one or more amphoteric surfactants, (C) a group consisting of ultrafine titanium oxide, plate-like titanium oxide and acicular titanium oxide, and spherical powder. A cosmetic composition comprising 0.005 to 20% by weight of at least one kind of titanium oxide selected from the following, and (D) 0 to 10.0% by weight of one or more C _6-34 higher fatty acids.