JP2010053089A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic which can be used under repeated heating while retaining stable property over a long period of time, despite containing readily pyrolyzed beauty components. <P>SOLUTION: In the cosmetic containing thermally deteriorated components that are readily deteriorated by heat, such as vitamin C derivatives, the thermally deteriorated components are previously microemulsified so as to obtain a microemulsified product which is dispersed and mixed with other components. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cosmetic that can be used by heating.

Nowadays, it is popular among women to use after warming skin temperature (approx. 35-37 ° C.) to a temperature that does not cause burns (approx. 45-46 ° C.). It has become. That is, by warming the cosmetic material as described above at the time of use, the skin temperature rises when applied, thereby improving blood flow and activating the skin. And when the skin temperature rises, pores are opened, so that accumulated dirt or the like is easily removed, and the penetration of cosmetic ingredients and moisture ingredients in cosmetics is improved.
However, cosmetics may contain heat-degradable components that are susceptible to degradation such as decomposition when heated, such as vitamin C derivatives and various plant extracts, and these components are repeatedly heated. If the product is decomposed, it may not be able to exert a stable effect.

Therefore, a cosmetic pack with a heating element has been proposed in which the cosmetic can be easily heated and used (see Patent Document 1).
That is, this cosmetic pack has a sheet of non-woven fabric or the like that contains a cosmetic material in advance and a heating element wrapped in an airtight packing material, and breaks the packing material during use. , The heating element is heated, and the heat is used to press the sheet against the skin while warming the cosmetics contained in the sheet. The above problems do not occur.

  However, since the pack as described above starts heating once it is opened, it cannot be used in small portions, and there is a problem that it is wasteful when used in a small range.

  On the other hand, the above problems can be solved by heating only the amount of cosmetics used at one time. However, since the amount of cosmetics used at one time is very small, it is difficult to heat in small portions. In addition, when a heating method using microwaves such as a microwave oven is used, water molecules in cosmetics are vibrated to generate heat, so that not only thermally degradable components but also other components are easily decomposed by frictional vibration. .

JP 2006-89458 A

  In view of the above circumstances, an object of the present invention is to provide a cosmetic that can be repeatedly heated and used while maintaining a stable property for a long time, even if it contains a cosmetic component that is easily pyrolyzed. .

  In order to achieve the above object, a cosmetic according to the present invention is a cosmetic containing a heat-degradable component that is easily deteriorated by heat. After the heat-degradable component is microemulsified in advance by a microemulsification method, It is characterized by being dispersed and mixed with the above ingredients.

  In the present invention, the heat-degradable component to be used is not particularly limited. For example, vitamin C, vitamin C derivative, soybean extract, gentian root extract, hydrolyzed white pepper seed extract, hydrolyzed rice bran extract, licorice root extract, eel extract , Aloe vera extract, Kawara mugwort extract, Yokuinin extract, Perilla extract, Panax ginseng extract, Magwa root bark extract, Chamomile extract, Arnica flower extract, Licorice flower extract, Yukinoshita extract, Rosemary extract, Hydrolytic yeast extract, Red algae extract, Brown algae extract, Green Algae Extract, Horse Chestnut Seed Extract, Fuyubo Daiju Flower Extract, Hamelis Leaf Extract, Horse Chestnut Seed Extract, Lemon Fruit Extract, Cucumber Fruit Extract, Saicin Extract, Peonies Root Extract, Aloehu Examples include elox leaf extract, oleander flower extract, wild thyme extract, cypress root extract, oat grain extract, rooibos extract, red clover flower extract, lotus germ extract, and bonito extract.

In the present invention, the microemulsified state means an oil-in-water droplet state having a particle diameter of 50 nm to 150 nm (preferably 70 nm to 120 nm).
In addition to the above heat-degradable components and emulsifiers, the components in the microemulsion are emulsified solubilizing and dispersing agents (active agents), other cosmetic ingredients, and emollient ingredients (smooth and soft surface of skin and hair). It is a component for adjusting the state.) A moisturizing agent can be added, and it is preferable to add an emulsifying solubilizing dispersant to obtain a stable microemulsion.
The blending amount of the heat-degradable component in the microemulsion is not particularly limited, but is preferably 0.01 to 5.0% by weight. If the blending amount is larger than this, the microemulsified state may not be formed / maintained due to pH and content components.

  The emulsifier is not particularly limited, and known ones conventionally used in cosmetics can be used. For example, polypropylene glycol 4 cetes-20, polypropylene glycol 4 cetes-10, polypropylene glycol 8 cetes-20, etc. Is mentioned.

  The emulsion-solubilizing / dispersing agent is not particularly limited, and known ones conventionally used in cosmetics can be used. For example, polyglycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene cured castor Oil, polyoxyethylene alkyl ether, polyoxyethylene sterol, polyoxyethylene polyoxypropylene alkyl ether, lecithin derivative (hydrogenated soybean phospholipid) may be used, and these may be used in combination, but a lecithin derivative is used. It is preferable.

Examples of the polyglycerin fatty acid ester include decaglyceryl monolaurate and decaglyceryl monomyristate.
Examples of the polyoxyethylene sorbitan fatty acid ester include mono coconut oil fatty acid POE (20) sorbitan, monostearic acid POE (20) sorbitan, monooleic acid POE (20) sorbitan, and the like.

Examples of the polyoxyethylene hydrogenated castor oil include POE (30) hydrogenated castor oil, POE (40) hydrogenated castor oil, POE (60) hydrogenated castor oil, POE (100) hydrogenated castor oil, and the like.
Examples of the polyoxyethylene alkyl ether include POE (20) behenyl ether and POE (30) behenyl ether.

Examples of the polyoxyethylene sterol include POE (30) cholestanol.
Examples of the polyoxyethylene polyoxypropylene alkyl ether include POE (20) POP (4) cetyl ether.

  The blending ratio of the emulsion solubilizing dispersant is not particularly limited, but is preferably 0.1 to 5.0% by weight. That is, when the amount is less than 0.1% by weight, there is almost no effect, and when the amount exceeds 5.0% by weight, the viscosity may increase.

  Other cosmetic ingredients are not particularly limited, and those conventionally used in cosmetics can be used.For example, soybean extract, gentian root extract, hydrolyzed white pepper seed extract, hydrolyzed rice bran extract, licorice root extract, Ubiquinone, soybean extract, gentian root extract, hydrolyzed white pepper seed extract, hydrolyzed rice bran extract, licorice root extract, red gourd extract, aloe vera extract, common mugwort extract, mushroom extract, perilla extract, ginseng extract, mugwort peel extract, chamomile extract, arnica flower extract , Nettle flower extract, saxifrage extract, rosemary extract, hydrolyzed yeast extract, red algae extract, brown algae extract, green algae extract, horse chestnut seed extract, cormorant flower extract, clam leaf Kiss, horse chestnut seed extract, lemon fruit extract, cucumber fruit extract, saicin extract, peony root extract, aloe ferrox leaf extract, oilseed lily flower extract, wild thyme extract, pearl root extract, oat grain extract, rooibos extract, Examples include red clover flower extract, lotus germ extract, and bonito extract.

  The emollient component is not particularly limited, and publicly known ones conventionally used in cosmetics can be used.For example, squalane, cyclomethicone, jojoba oil, olive oil, corn germ oil, macadamia nut oil, octyldodecyl lactate, Examples thereof include neopentyl glycol dicaprate, isopropyl myristate, cetyl ethylhexanoate, and isopropyl palmitate.

  The humectant is not particularly limited, and known humectants conventionally used in cosmetics can be used, and examples thereof include water, 1,3-butylene glycol, glycerin, and dipropylene glycol.

  When the cosmetic composition of the present invention is heated and used, the use temperature is preferably high to enhance the cosmetic effect, but there are problems such as burns and the risk of decomposition of other components. Since it exists, about 40 to 50 degreeC is preferable and 42 to 46 degreeC is more preferable.

As described above, the cosmetic according to the present invention includes a heat-degradable component that is easily deteriorated by heat. After the heat-degradable component is microemulsified in advance by a microemulsification method, As a result of being dispersed and mixed, the heat-degradable component is dispersed in a very small oil droplet in a protected state and hardly deteriorates even when heat is repeatedly applied.
Therefore, it is possible to provide a high beauty effect easily by heating and at a low cost.

  Examples of the present invention will be described below.

(Example 1)
Ethyl 3-O-ascorbate as a vitamin C derivative, which is a thermally degradable component, is mixed at 145 MPa (mega) with a high-pressure emulsifier (Microfluidizer manufactured by Microfluidics International Corporation) together with other components in the blending ratio shown in Table 1. A microemulsion (base) microemulsified to 80 nm by applying a pressure of (Pascal) was obtained.
Then, this microemulsion was mixed and mixed with the other components at a blending ratio shown in Table 2 with a stirrer (manufactured by Shinto Kagaku Co., Ltd., Three-One Motor (BL1200)) to obtain Essence A as a cosmetic.

(Comparative Example 1)
A stirrer with other components as shown in Table 3 was mixed with ethyl 3-O-ascorbate as a vitamin C derivative which is a thermally degradable component so that the total component ratio is the same as that of the essence A. The mixture was stirred and mixed with Shinto Kagaku Co., Ltd. (Three-One Motor (BL1200)) to obtain Essence B as a cosmetic.

For each of Essence A and Essence B obtained as described above, heating was performed at 50 ° C. for 5 times without heating, then heating at 50 ° C. was repeated 10 times, and then heating at 50 ° C. was performed. The content of ethyl 3-O-ascorbate after repeating the temperature 20 times was examined, and the results are shown in Table 4 and FIG.
Repeated heating was performed once by heating the sample to 50 ° C. with a water bath and then allowing to stand at 20 ° C. for 5 minutes.

The content of ethyl 3-O-ascorbate was measured using liquid chromatography (manufactured by Shimadzu Corp .: CTO-10A, LC-10AS, SPD-10A).
The sample solution was obtained by accurately weighing 1.0 g of a sample, adding 0.5 mL of the internal standard solution shown below to this accurately, adding water to make exactly 50 mL, and mixing well.

  From the above Table 4 and FIG. 1, if ethyl 3-O-ascorbate is blended in a microemulsified state as in the present invention, the decomposition of ethyl 3-O-ascorbate can be suppressed even when heated repeatedly. It can be seen that stable performance can be maintained for a period.

Moreover, it does not specifically limit as a method to heat the cosmetics of this invention, For example, the heating apparatus 1 as shown in FIG.2 and FIG.3 can be used.
As shown in FIG. 2, the heating device 1 includes a device main body 2 and a lid 3.

As shown in FIGS. 2 and 3, the apparatus main body 2 includes an aluminum inner container 21, a housing 22, a power supply unit 23 provided in the housing 22, a control unit 24, and a Peltier element 25. And a heating circuit including a thermostat 26.
The casing 22 includes a display device 27 that has a concave portion 22a having an upper opening and is connected to a heating circuit on the outer wall surface and displays the temperature in the inner container 21.

  The lid 3 is attached to the housing 22 via a hinge 28 so as to cover the upper part of the concave portion 22a so as to be freely opened and closed, and when heating, the lid 3 is closed to increase the heating efficiency. Yes.

  As shown in FIGS. 2 and 3, the heating device 1 accommodates the cosmetic bottle 4 containing the cosmetic to be heated in the inner container 21 as well as the cosmetic bottle 4. Water is applied to the extent that it does not submerge, the inner container 21 is heated by the action of the Peltier element 25, the water W is heated, and the cosmetic contained in the cosmetic bottle 4 is heated to a predetermined temperature (for example, 45, 6 ° C.). It can be kept warm.

6 is a graph showing a comparison of changes in the content of ethyl 3-O-ascorbate during repeated heating of essences A and B obtained in Example 1 and Comparative Example 1. FIG. It is a perspective view showing an example of the heating apparatus used in order to heat the cosmetics of this invention. It is a block diagram of the heating circuit of the heating apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating apparatus 2 Apparatus main body 21 Inner container 22 Case 22a Recessed part 23 Power supply unit 24 Control unit 25 Peltier element 26 Thermostat 27 Display apparatus 3 Cover

Claims (2)

  A cosmetic comprising a heat-degradable component that easily deteriorates by heat, wherein the heat-degradable component is preliminarily microemulsified by a microemulsification method and then dispersed and mixed with other components.   Thermally degradable ingredients are vitamin C, vitamin C derivative, soybean extract, gentian root extract, hydrolyzed white pepper seed extract, hydrolyzed rice bran extract, licorice root extract, eel extract, aloe vera extract, kawara mugwort extract, yakuinin extract, perilla extract, ginseng extract, Magwa root bark extract, chamomile extract, arnica flower extract, nettle flower extract, saxifrage extract, rosemary extract, hydrolyzed yeast extract, red algae extract, brown algae extract, green algae extract, horse chestnut seed extract, scallop flower extract, clam leaf Extract, horse chestnut seed extract, lemon fruit extract, cucumber fruit extract, saicin extract, peony root extract, aloe ferrox leaf extract, oleander flower extract, wild Imuekisu, angelica root extract, oat grain extract, rooibos extract, red clover blossom extract, lotus germ extract, cosmetic according to claim 1 is at least one selected from the group consisting of soapwort.

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