JPH08291021A - Solid-like oil-in-water type emulsified cosmetic - Google Patents

Abstract

PURPOSE: To obtain a solid-like oil-in-water type emulsified cosmetic filled in a conveniently portable vessel such as a compact, etc. CONSTITUTION: This cosmetic is composed of water, a surfactant, an oil and a β-1,3-glucan. As the surfactant, one or more than two kinds selected from an anionic surfactant and a nonionic surfactant are preferably used. A mixing amount of the β-1,3-glucan is suitably 0.1-5.0wt.%. By this constitution, water can be mixed at a high concentration such as 20-80wt.% and both of a neat and refreshed use feeling and an excellent wet retentivity can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be provided by filling in a compact container which is convenient to carry, and has a solid moisturizing property and a refreshing feeling of use. Regarding More specifically, water, a surfactant,
The present invention relates to a stable solid oil-in-water type emulsion cosmetic containing oil and β-1,3-glucan and containing a large amount of water.

[0002]

2. Description of the Related Art Solid cosmetics filled in compact containers and the like are convenient to carry, and are more preferred and often used. To make the emulsified cosmetic compounded with water into a solid state,
Water-in-oil emulsion systems have been used. The water-in-oil type emulsion system is excellent in terms of affinity to the skin, protection of the skin and maintenance of flexibility, but it also has unfavorable properties such as stickiness and oiliness in terms of usability. It was

On the other hand, the oil-in-water type emulsion system has many desirable properties such as a unique refreshing feeling, excellent moisturizing properties, and a natural finish, but generally has fluidity and is a compact container. It was not suitable to be provided in a container form such as. Several attempts have been made to make this oil-in-water type emulsion cosmetic into a solid state, such that ι-carrageenan and xanthan gum and / or locust bean gum are used in combination (JP-A-4-279509), agar, gelatin, sodium silicate. A water-soluble solidifying agent such as magnesium is used in combination with a water-soluble binder such as a natural polymer such as a cellulose derivative, sodium alginate, carrageenan or xanthan gum, or a synthetic polymer such as polyvinyl alcohol, carboxyvinyl polymer or sodium polyacrylate ( JP-A-5-178723) and the like have studied the solidification of the aqueous phase.

However, in the above technique, it is necessary to use two or more kinds of water-soluble binders or solidifying agents in combination, and quality control of such water-soluble binders and solidifying agents and appropriate and stable hardness are imparted. Therefore, it was necessary to strengthen management in the manufacturing process.

It is an object of the present invention to more easily provide a stable solid oil-in-water type emulsion cosmetic which contains a large amount of water and has a high moisturizing effect and provides a refreshing feeling of use and a natural finish. And

We have previously found and disclosed that an oil-in-water emulsion cosmetic can be made into a solid state by blending water, synthetic sodium magnesium silicate, soap of stearic acid and higher aliphatic alcohol. However, this time, by adding β-1,3-glucan to an oil-in-water emulsion system containing water, a surfactant and oil, it is suitable for filling a container such as a compact one. It has been found that a solid emulsified cosmetic composition having excellent hardness and good feeling in use and stability can be obtained, and the above problems have been solved.

That is, the solid oil-in-water emulsion cosmetic of the present invention contains water, a surfactant, oil and β-1,3-glucan.

The content of water in the present invention is appropriately 20 to 80% by weight, preferably 30 to 70% by weight, based on the total amount of the cosmetic. By containing such a large amount of water, excellent moisturizing properties can be exhibited.

In the present invention, the surfactant is necessary as an emulsifier for obtaining an oil-in-water emulsion, and polyoxyethylene alkyl ether such as polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene oleyl ether and the like. , Polyoxyethylene octyl phenyl ether, polyoxyethylene nonyl phenyl ether and other polyoxyethylene alkyl allyl ethers, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, mono Polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan oleate and polyoxyethylene sorbitan trioleate, polyoxyethylene glycerin Mono-fatty acid esters, polyoxyethylene propylene glycol mono fatty acid esters,
Polyoxyethylene sorbitol fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene lanolin, polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol monooleate Polyoxyethylene fatty acid esters such as polyethylene glycol, lipophilic monoolein Higher fatty acid glycerin esters such as acid glycerin, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate,
Block polymers such as sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan fatty acid esters, sucrose fatty acid esters, pluronic, tetronic, etc. , Polyoxyethylene fatty acid amides,
Nonionic surfactants such as alkanolamides, sodium hydroxide such as palmitic acid, stearic acid and behenic acid, potassium hydroxide, fatty acid soaps such as arginine salts, polyoxyethylene alkyl ether carboxylic acid and salts thereof, Condensates of higher fatty acids and amino acids such as N-acyl sarcosine salts and N-acyl glutamate, sulfonates such as alkyl sulfonates, α-olefin sulfonates, sulfonates of higher fatty acid esters,
Sulfate ester salts such as alkyl sulfate ester salts, alkyl ether sulfate ester salts, alkyl allyl ether sulfate salts, polyoxyethylene alkyl ether phosphate ester salts, phosphate esters such as polyoxyethylene alkyl allyl ether phosphate salts, etc. It is preferable to use one or more selected from ionic surfactants. In particular, in order to impart water resistance to the produced cosmetic film, it is preferable to mainly contain fatty acid soaps.

In the present invention, as oil, squalane,
Hydrocarbon oils such as liquid paraffin, ester oils such as isopropyl myristate, isopropyl palmitate and octyldodecyl myristate, vegetable oils such as avocado oil, almond oil, olive oil, soybean oil, castor oil, animal oils such as turtle oil and mink oil. Oils such as carnauba wax, candelilla wax, jojoba oil, and other plant waxes, beeswax, lanolin, and other animal waxes, and silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane. Can be used.

Β-1,3 used as a solidifying agent in the present invention
-Glucan has a property that its aqueous dispersion gels at a high temperature of 85 to 90 ° C, and the present invention succeeded in obtaining a solid cosmetic product by utilizing this property. The blending amount of β-1,3-glucan is preferably 0.1 to 5.0% by weight. If it is less than 0.1% by weight, the solidification property is not sufficient, while if it exceeds 5.0% by weight, the hardness of the cosmetic produced is too high and the usability deteriorates.

In addition to the above components, moisturizers such as polyhydric alcohols such as glycerin, diethylene glycol, butylene glycol, polyethylene glycol, amino acids, mucopolysaccharides, UV absorbers, preservatives, and fragrances which are generally added to cosmetics. Additives that are generally used in cosmetics can be added.

The emulsified cosmetic composition according to the present invention comprises an emulsion prepared from water, a surfactant, oil and other additives by a conventional emulsification method, cooled and then blended with β-1,3-glucan. To a container such as a gold dish, and then reheated to 85 to 90 ° C. together with the container to solidify to prepare. The solid oil-in-water emulsified cosmetic composition according to the present invention can be provided as a makeup cosmetic preparation such as makeup base cream, foundation, eye color, and cheek color. Can also be applied.

[0014]

The solid oil-in-water emulsified cosmetic composition of the present invention has an appropriate hardness, so that it adheres well to applicators such as fingertips and puffs and is easy to apply to the skin. In addition, since a large amount of water is favorably retained in the water phase, the water in the cosmetic hardly volatilizes and the storage stability is excellent even without using a container having a structure with particularly improved airtightness. Furthermore, a large amount of water provides good moisturizing properties, and also provides a refreshing feeling of use unique to an oil-in-water emulsion.

[0015]

EXAMPLES The features of the present invention will be described in detail with reference to Examples. The formulation of each example is shown below.

Example 1 Solid oil-in-water emulsion foundation (1) Stearic acid 2.0 (wt%) (2) Cetanol 1.0 (3) Octyldodecyl myristate 2.0 (4) Squalane 6. 5 (5) Glycerin monostearate 2.5 (6) β-1,3-glucan 1.0 (7) Glycerin 4.0 (8) Potassium hydroxide 0.2 (9) Titanium oxide 8.0 (10 ) Kaolin 5.0 (11) Talc 2.0 (12) Color pigment 2.0 (13) Methyl paraoxybenzoate 0.1 (14) Perfume 0.1 (15) Purified water Amount to make the total amount 100.0 Manufacturing method: Part of (7) to (13) and (15) is heated to 80 ° C. and uniformly dispersed by a homogenizer. To this, (1) to (5), which had been mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
After adding (6) to the rest of (15) and (14), the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

[Example 2] Solid oil-in-water emulsion foundation (1) Stearic acid 2.0 (wt%) (2) Cetyl alcohol 1.0 (3) Liquid paraffin 3.0 (4) 2-Ethylhexane Cetyl acid 4.0 (5) Lipophilic glyceryl monostearate 1.0 (6) β-1,3-glucan 1.4 (7) Glycerin 5.0 (8) Sodium hydroxide 0.3 (9) Titanium oxide 8.0 (10) Talc 4.0 (11) Coloring pigment 3.0 (12) Methyl paraoxybenzoate 0.2 (13) Perfume 0.2 (14) Purified water Amount to make the total amount 100.0 Manufacturing method: Part of (7) to (12) and (14) is heated to 80 ° C. and uniformly dispersed by a homogenizer. To this, (1) to (5), which had been mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
The mixture of (6) dispersed in the rest of (14) and (13) are added, and the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

[Example 3] Solid oil-in-water emulsion eye color (1) Stearic acid 1.5 (wt%) (2) Behenyl alcohol 3.0 (3) Liquid paraffin 4.5 (4) Adsorption purified lanolin 3 .5 (5) β-1,3-glucan 2.0 (6) Glycerin 5.0 (7) Potassium hydroxide 0.2 (8) Red 226 0.6 (9) Mica titanium 2.0 (10 ) Sericite 9.0 (11) Methyl paraoxybenzoate 0.1 (12) Perfume 0.2 (13) Purified water Amount with total amount of 100.0 Manufacturing method: (6) to (11) and (13) Part of the mixture is heated to 80 ° C. and uniformly dispersed with a homogenizer. To this, (1) to (4), which had been mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
The mixture of (5) dispersed in the rest of (13) and (12) are added, and the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

[Example 4] Solid oil-in-water emulsion cheek color (1) Palmitic acid 2.0 (wt%) (2) Stearyl alcohol 4.0 (3) Liquid paraffin 5.0 (4) Jojoba oil 2 0.0 (5) Beeswax 1.0 (6) β-1,3-glucan 1.5 (7) Sodium pyrrolidonecarboxylate 5.0 (8) L-arginine 0.6 (9) Mica titanium 1.0 ( 10) Mica 10.0 (11) Sericite 2.0 (12) Coloring pigment 0.8 (13) Methyl paraoxybenzoate 0.1 (14) Perfume 0.1 (15) Purified water Total 100.0 Amount to be produced Manufacturing method: Part of (7) to (13) and (15) is heated to 80 ° C. and uniformly dispersed by a homogenizer. To this, (1) to (5), which had been mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
After adding (6) to the rest of (15) and (14), the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

[Example 5] Solid oil-in-water emollient cream (1) Stearic acid 2.0 (% by weight) (2) Stearyl alcohol 7.0 (3) Reduced lanolin 2.0 (4) Squalane 5.0 (5) Octyldodecanol 6.0 (6) Polyoxyethylene cetyl ether 3.0 (7) Lipophilic glyceryl monostearate 2.0 (8) β-1,3-glucan 2.0 (9) Propylene Glycol 5.0 (10) Methyl paraoxybenzoate 0.1 (11) Perfume 0.1 (12) Purified water Amount to make the total amount 100.0 Manufacturing method: Part of (9), (10) and (12) Is heated to 80 ° C. and uniformly dispersed with a homogenizer. To this, (1) to (7), which were mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
After adding (11) and (8) dispersed in the rest of (12), the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

[Example 6] Solid oil-in-water emollient cream (1) Beeswax 2.0 (% by weight) (2) Stearyl alcohol 5.0 (3) Stearic acid 8.0 (4) Squalane 10.0 ( 5) Self-emulsifying monostearic acid 3.0 Propylene glycol (6) Polyoxyethylene cetyl ether (20E.O.) 1.0 (7) β-1,3-glucan 1.5 (8) Propylene glycol 8. 0 (9) Glycerin 4.0 (10) Triethanolamine 1.0 (11) Methyl paraoxybenzoate 0.1 (12) Perfume 0.1 (13) Purified water Amount with total amount of 100.0 Manufacturing method: ( A part of 8) to (11) and (13) is heated to 80 ° C. and uniformly dispersed by a homogenizer. To this, (1) to (6), which had been mixed in advance and heated to 80 ° C. and dissolved, were added with stirring to emulsify. Then cool down at 35-40 ° C
After adding (11) and (7) dispersed in the rest of (13), the mixture is further cooled to room temperature and filled in a gold dish. This is placed on a hot plate, heated again to 85 to 90 ° C., solidified, immediately cooled to room temperature, and set in a compact container.

The stability and usability of the above examples of the present invention were examined. First, stability was evaluated by observing changes in the state of water separation and the like with time after filling the container and leaving it at 25 ° C. At that time, those obtained by substituting the agar for β-1,3-glucan in Examples 1 to 6 were designated as Comparative Examples 1 to 6, respectively. The evaluation was performed according to the following criteria, and the results are shown in Table 1. [Judgment criteria] ○: No change in state such as cracking due to water separation or water evaporation is observed. Δ: A slight crack due to water separation or water evaporation is observed. ×: Cracks due to water separation or water evaporation are clearly observed.

[Table 1]

As is clear from Table 1, in any of the examples of the present invention, no cracks on the surface of the solid powder cosmetics due to water separation or water evaporation were observed even after 3 months, and good emulsification and The solidified state was retained. On the other hand, in Comparative Examples 2, 3 and 5, syneresis and the like began to be seen after 1 week, and in Comparative Examples 1, 4 and 6 as well, syneresis and the like progressed after 1 month, Had lost value.

On the other hand, usability was evaluated by sensory evaluation by 30 female panelists aged 20 to 50. The sensory evaluation was performed according to the evaluation criteria shown in Table 2 and scored, and the average value of 30 persons was calculated and shown in Table 3. At this time, a commercially available solid water-in-oil type emulsion foundation, solid water-in-oil type emulsion eye color, solid water-in-oil type emulsion cheek color and water-in-oil type emollient cream were respectively prepared in Comparative Example 7 and Comparative Example 8, It was set as the comparative example 9 and the comparative example 10.

[Table 2]

[Table 3]

As is clear from Table 3, in each of Examples 1 to 4 of the present invention, almost the same finished feeling as the commercially available solid water-in-oil type emulsion cosmetics was obtained, Growth was also average. Further, it has an excellent refreshing feeling and moisturizing property, has no stickiness, is improved in the drawback that it is easily re-emulsified by coming into contact with sweat or water, and has good makeup retention. On the other hand, in Comparative Examples 7 to 9, it was evaluated that the feeling of stickiness was large and the feeling of refreshing and the moisture retention were lacking. Further, Examples 5 and 6 of the present invention also had an average elongation, were excellent in refreshing feeling and moisturizing property, and were evaluated as having no sticky feeling. On the other hand, Comparative Example 10 was evaluated as lacking in refreshing feeling and having a large sticky feeling. Furthermore, regarding Example 5 and Example 6, from the panelists used,
Since it is provided in a compact container, I got the impression that it is convenient to carry.

In addition, none of the panelists using the solid oil-in-water type emulsion cosmetics according to the examples of the present invention recognized skin irritation, skin sensitization and eye mucous membrane irritation.

[0027]

As described in detail above, according to the present invention, it has a refreshing refreshing feeling and an excellent moisturizing property,
It is possible to obtain a solid oil-in-water emulsified cosmetic having good stability and long-lasting makeup, and the oil-in-water emulsified cosmetic can be provided by filling it in a compact container or the like that is convenient to carry. .

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C08B 37/00 C08B 37/00 C

Claims (4)

[Claims] 1. A solid oil-in-water emulsion cosmetic containing water, a surfactant, oil, and β-1,3-glucan. 2. The solid oil-in-water type emulsified cosmetic composition according to claim 1, which contains 20 to 80% by weight of water. 3. The surfactant according to claim 1, wherein the surfactant is one or more selected from anionic surfactants and nonionic surfactants. Solid oil-in-water emulsion cosmetic. 4. The blending amount of β-1,3-glucan is 0.1 to 0.1.
The solid oil-in-water emulsified cosmetic composition according to claim 1, which is 5.0% by weight.