JP2949356B2 - Solid oil-in-water makeup cosmetics - Google Patents

Description

The present invention relates to a solid oil-in-water makeup cosmetic.
More specifically, the present invention relates to a solid oil-in-water makeup cosmetic having a novel feeling of use that has good stability and has a strong refreshing feeling when applied to the skin.

In the present invention, the solid oil-in-water make-up cosmetic is a temperature range (0 ° C. to 50 ° C.) in which ordinary cosmetics are used.
Solidified without fluidity (including paste).

[Prior art] Examples of solid make-up cosmetics include stick type, puff, and a pressed type in which a mixture of powder and oil used in a sponge is press-molded by solidifying oil and powder with wax, and then filling the container. It can be used according to the purpose and method of use.

While these solid makeup cosmetics have the advantage of being easy to carry, they have disadvantages such as sticky oiliness and stickiness in the feeling of use, and pressurized makeup with powdery makeup.

On the other hand, oil-in-water make-up cosmetics filled in bottles and tubes have a refreshing sensation, and have an advantage in the feeling of use, such as a smooth finish of makeup. There are disadvantages such as getting dirty.

In addition, solid water-in-oil make-up cosmetics that improve the disadvantages of these solid make-up cosmetics and have the merit of using emulsified make-up cosmetics are on the market. Is still not enough compared to oil-in-water makeup cosmetics that can contain a large amount of water.

[Problems to be Solved by the Invention] In view of such circumstances, the present inventors have found that in oil-in-water make-up cosmetics, a solid form having a strong refreshing sensation, a smooth finish of make-up, and excellent portability. As a result of intensive studies aimed at obtaining an oil-in-water makeup cosmetic, 4-50% by weight of fatty acid soap, oil and powder (excluding synthetic sodium and magnesium silicate) are combined with water and cosmetics By doing so, it is found that the water of the external phase can be solidified, the stability is good, the makeup is finished smoothly, the makeup is good, and it has a strong refreshing feeling when applied to the skin, and furthermore, the container form to be filled The present invention has been found to have an advantage that the range can be expanded, and the present invention has been completed.

[Means for Solving the Problems] That is, the present invention is characterized in that it contains 4 to 50% by weight of fatty acid soap, oil and powder (excluding synthetic sodium silicate) in the total amount of cosmetics. The present invention relates to a solid oil-in-water makeup cosmetic.

 Hereinafter, the configuration of the present invention will be described.

In the present invention, the solid oil-in-water make-up cosmetic is a temperature range (0 ° C. to 50 ° C.) usually used as a cosmetic.
(° C) without fluidity and solidified (including paste).

The amount of water in the present invention is 20% by weight of the total amount of the cosmetic.
The above is preferred. Below this, it is difficult to expect a refreshing sensation during use. When a particularly great refreshing feeling is required at the time of use, it is desirable to add 30 wt% or more.

The fatty acid soap used in the present invention may be blended as a fatty acid soap, or a fatty acid soap produced in the system by an alkali reaction may be used.

When produced in the system, the fatty acid used is preferably one having a high melting point, and one having a melting point of 60 ° C. or higher, in order to solidify the water in the external phase.

Examples include palmitic acid (melting point ° C), stearic acid (melting point ° C), and behenic acid (melting point ° C).

The alkali used in this case includes sodium, potassium and the like, and the blending amount is determined according to the equivalent amount of the fatty acid to be blended.

The content is 4 to 50% by weight of the total amount of the cosmetic as fatty acid soap
Is preferred. If the content is less than 4% by weight, water in the external phase is hard to solidify, and a melting phenomenon is observed at high temperatures. If the amount exceeds 50% by weight, the system becomes too hard to be used. Preferably 5
~ 25% by weight.

Further, as the oil component used in the present invention, those which mainly provide a smooth feeling of use as an emulsified makeup cosmetic are suitable, and for example, vaseline, lanolin, silicone wax, solid and semi-solid oil components such as higher alcohols,
And liquid oils such as squalane, liquid paraffin, ester oil, triglyceride, volatile hydrocarbon oil, and volatile silicone oil.

The powder may be one usually used as a makeup cosmetic, for example, inorganic powder such as talc, kaolin, sericite and titanium dioxide, pearl pigment such as titanium oxide coated mica, polyester, polyethylene, 12 nylon (registered trademark). And the like, a composite powder obtained by compounding an organic powder, an inorganic powder and an organic powder, and a water-repellent powder subjected to a silicone treatment or the like.

The amount is preferably 5 to 50% by weight, particularly preferably 15 to 50% by weight.
~ 40% by weight.

In the present invention, a thickener, a surfactant and the like can be blended in addition to the above essential components.

The thickener has an effect of improving the stability of the system and is preferably added in addition to the above essential components. For example, organic thickeners such as carboxymethyl celluloses, carboxyvinyl polymers, hydroxypropyl cellulose, and / or the like, and / or And derivatives thereof, inorganic polymers such as silicic acid, laponite, bentonite and the like, and / or derivatives thereof.

 The compounding amount is preferably in the range of 0.1% by weight to 5% by weight.

Further, it is preferable to add a surfactant in addition to the above essential components in order to improve the stability of the emulsion. When stability is considered, a hydrophilic surfactant is particularly preferable, but a lipophilic surfactant can be appropriately compounded within a range that does not impair the stability, depending on an oil component to be added to the system.

Examples of the hydrophilic activator include polyoxyethylene alkyl ethers, polyethylene glycol fatty acid esters, and polyoxyethylene polyoxypropylene alkyl ethers.

Examples of the lipophilic surfactant include sorbitan fatty acid esters.

The blending amount is selected according to the amount of the aqueous phase to be emulsified,
0.2 to 10% by weight is preferred.

In addition, it is also preferable to mix higher alcohols such as stearyl alcohol and behenyl alcohol in order to further increase the density of the fatty acid soap crystals, to assist in the solidification action, and to give a smooth feel to the usability.

Further, sodium hyaluronate, mucopolysaccharides such as sodium chondroitin sulfate, organic acids such as citric acid, malic acid and lactic acid and salts thereof, vitamin E, drugs such as vitamin E acetate, astringents, antioxidants, preservatives, Spices,
Alcohols such as menthol and ethyl alcohol, pH adjusters, ultraviolet absorbers and the like can also be added within a range that does not impair the stability of the system.

[Examples] Hereinafter, the effects of the present invention will be described with reference to Examples and Comparative Examples, but the scope of the present invention is not limited thereto. In addition, the compounding quantity in an Example is all weight%.

Example-1 1.Ion-exchanged water 53.9 2.2-Cetyl ethylhexanoate 5.0 3.Squalane 5.0 4.Glycerin 5.0 5.Diglycerin diisostearate 2.0 6.Behenic acid 7.0 7.Stearyl alcohol 1.4 8.Sodium hydroxide 0.79 Powder 20.0 1) Add 4 and 8 to 1 and dissolve, then add 9 and disperse well to heat to 85 ° C.

2) Add 3, 5, 6, 7 to 2 and heat to dissolve.
3) Add 2) gradually to 1) and emulsify. Then, the container was filled and cooled to room temperature to obtain Example-1.

Example-2 1. Liquid paraffin 5.0 2.2-cetyl ethylhexanoate 5.0 3. behenic acid 7.0 4. behenyl alcohol 1.4 5. ion-exchanged water 41.9 6. glycerin 3.0 7.1,3-butylene glycol 3.0 8. polyoxyethylene (30) Cholestanol ether 3.0 9. Sodium hydroxide 0.7 10. Ethyl alcohol 10.0 11. Powder 20.0 1) Add 2, 3 and 4 to 1 and heat to mix.

2) 6, 7, 8, 9, 10 and 11 are added to 5 and mixed by heating to be uniform.

3) Gradually add 1) to 2) and emulsify.

4) 3) was filled in a container and cooled to room temperature to obtain Example 2 of a solid oil-in-water type foundation.

Comparative Example-1 1. Titanium dioxide 24.5 2. Kaolin 10.0 3. Mica 10.0 4. Iron oxide pigment 5.0 5. Squalane 23.0 6. Methylpolysiloxane 16.0 7. Sorbitan sesquiisostearate 3.0 8. Celesin 6.5 9. Carnauba wax 2.0 1) 1, 2, 3, and 4 are added to 5, 6, and 7, and the mixture is stirred to lower uniformly, and then subjected to roller treatment.

2) 1) is added to 8, 9 which was previously heated and melted at an abnormal temperature of 90 ° C., and mixed with stirring.

3) Fill 2) into a container, cool to room temperature, and
I got

Comparative Example-2 1. Mica 54.5 2. Talc 20.0 3. Titanium dioxide 8.0 4. Zinc flower 2.0 5. Inorganic pigment 3.5 6. Squalane 4.0 7. Methylpolysiloxane 2.0 8. Sorbitan sesquioleate 1.0 9. Diisomalate Stearyl 5.0 1) 1,2,3,4,5 were stirred and mixed, oils 6,7,8,9 previously heated and homogenized were added and mixed with stirring.

2) 1) was pulverized and press-molded into a container to obtain Comparative Example-2.

Example 1 is an oil-in-water compact foundation made according to the present invention.

Comparative Example-1 is a conventional representative stick type, and Comparative Example-2 is a pressed type foundation.

This Example-1, Comparative Examples-1 and -2 were applied to half of the face by a normal use method using 20 specialized panels, and Comparative Examples-1 and -2 were applied to the other half, respectively. After application, a comparative judgment was performed, and the refreshing feeling, makeup stickiness, ease of applying, and finish were evaluated organoleptically.

(Results) 1. Comparison between Example-1 and Comparative Example-1 Number of panels who answered that Example-1 was good Makeup moist * 9 Cool feeling 20 Easy to apply 16 Finish 17 * Make-mochi The judgment was made 2 hours after application.

Example 1 and Comparative Example 1 were almost the same in terms of makeup, but all responded that there was Example 1 in terms of refreshing feeling. Also, with respect to the “spread” when applying the sponge, the opinion that Example-1 is light and spreads well was raised.

Regarding the finish, there was "smoothness" which is a feature of oil-in-water type cosmetics.

Further, in Comparative Example-1, the finger had to be spread, and the finger was dirty, which was unpleasant. However, in Example-1, there was an opinion that the point was improved and preferred.

2.Comparison between Example-2 and Comparative Example-2 Number of panels which answered that Example-2 was good. It was determined later.

The makeup stickiness was better than the powder type foundation.

 As for the refreshing sensation, all the members answered that there was Example-2.

Regarding ease of application, a majority or more of the panels answered that Example-2 was excellent, because "spreading" and "spreading" during coating were good.

Most of the panel responded that the finish was not powdery and smooth.

[Effect of the Invention] The solid oil-in-water makeup cosmetic of the present invention contains water, 4 to 50% by weight of the total amount of the cosmetic, a fatty acid soap, an oil, and powder (excluding synthetic sodium and magnesium silicate). In addition, since it is a solid form with no fluidity, it is excellent in portability and can be mixed with a large amount of water.
Other feelings such as "finish" are also excellent. Furthermore, while being solid, various water-soluble components as an aqueous phase component and various oil-soluble components as an oil phase component can be blended,
This also has the effect that the range of the container form can be expanded.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61K 7/02

Claims (1)

(57) [Claims] 1. A solid form containing water, 4 to 50% by weight of the total amount of cosmetics, a fatty acid soap, an oil, and powder (excluding synthetic sodium and magnesium silicates), and having a refreshing feeling. Oil-in-water makeup cosmetics.