KR20210085310A - Effervescent cosmetics - Google Patents

Abstract

The present invention relates to effervescent cosmetics, as granular molded articles containing: at least one organic acid of citric acid, fumaric acid, malic acid, and succinic acid; sodium hydrogen carbonate; and polyethylene glycol having an average molecular weight of 2000 to 8000 or less. Provided is the effervescent cosmetic consisting of one agent excellent in percutaneous absorption of carbon dioxide, and moisture-proof and water-soluble properties and being economical.

Description

Effervescent cosmetics

The present invention relates to a foamable cosmetic excellent in percutaneous absorption of carbon dioxide.

[탄산수소이온]의 상태로 수중에 용존되어 있는 탄산가스성분)을 함유하는 탄산온천에 입욕할 때, 그 탄산온천 속의 탄산성분이 피부의 모세혈관에 작용해서 모세혈관을 확장시켜 혈행을 개선함으로서 입욕자의 피로회복이나 건강증진에 도움이 되는 것으로 널리 알려져 있다. 이 성질을 이용하기 위해서 유기산과 탄산수소이온 함유 고형제를 입욕시에 용해시켜서 일반가정용 인공탄산온천으로 사용하려는 시도가 있다. (비특허문헌1)free carbonic acid (HCO ³

When bathing in a carbonated hot spring containing carbonic acid gas component dissolved in water in the state of [hydrogen carbonate ion], the carbonic acid component in the carbonated spring acts on the capillaries of the skin to expand the capillaries and improve blood circulation. It is widely known to help bathers recover from fatigue and improve their health. In order to take advantage of this property, there is an attempt to use an artificial carbonated hot spring for general households by dissolving an organic acid and a solid agent containing hydrogen carbonate ions during bathing. (Non-Patent Document 1)

Cosmetics to which the above-mentioned effects are applied, a cosmetic for scalp massage that generates carbon dioxide by mixing a first agent containing at least one of an organic acid and an inorganic acid and a second agent containing a carbonate, and at least one of the first agent and the second agent. It is an emulsion containing one or more carbon atoms and a higher alcohol having 10-30 carbon atoms and a nonionic surfactant, or after mixing the first agent and the second agent, the pH is 4.0 to 8.0, and the viscosity is 30000 to 50000 mPa·s Cosmetics for scalp massage exist. (Patent Document 1)

In addition, with respect to granulated product A granulated in a fluidized bed granulator by adding 1/50 to 1/5 of polyethylene glycol to bicarbonate (sodium bicarbonate or potassium bicarbonate), the mixture B of organic acid and polyethylene glycol is 1/20 to 1/20. There are tablets characterized in that the tablet hardness is 15KN or more for tablets compression-molded at a weight ratio of 1/3. (Patent Document 2)

In addition, there exists a briquette-phase solid bathing agent using organic acids and carbonates as raw materials to produce an effect similar to the above (Patent Document 3).

Japanese Patent Laid-Open No. 2017-14172 Japanese Patent Laid-Open No. 2013-245218 Japanese Patent Laid-Open No. 2007-511175

1. Man Su-heon et al., A Study on Artificial Carbonated Hot Springs (Part 1) “On the Effective Carbonic Acid Concentration of Carbonated Springs,” Journal of the Japanese Society of Onsen Physics, Vol. 47, No. 3, 4 May 1998

However, in Patent Document 1, the viscosity of the mixture of the first agent and the second agent is as high as 3000 to 5000 mPa·s, and the fluidity of the mixture is poor, so there is a problem that the transdermal absorption efficiency of carbon dioxide gas is low.

In addition, the technique described in Patent Document 2 does not completely dissolve in tap water of 35°C (body temperature) or lower when washing the face by dissolving it in a small amount of tap water, so that insoluble matter remains. While promoting the blood circulation of the face, there was a problem that the original purpose of restoring the skin condition by removing contaminants (especially old dead skin cells) and promoting the metabolism of the face through face washing could not be fully achieved.

In particular, in order to produce a Briquette-phase solid bath agent using the technique described in Patent Document 3, it is necessary to pressurize a plurality of raw materials, and at this time, the temperature rises due to pressure and friction between the surface of the composite raw material. Since raw materials (especially water-soluble raw materials and substances having crystal water) contain some moisture, the solid raw materials can be liquefied by the moisture in the raw materials when pressurized. It may collapse without maintaining the solid shape of ?R. In addition, the balance between the organic acid and carbonate contained is changed during use, and the amount of carbon dioxide is not stable, resulting in quality problems.

For the above reasons, it is difficult to mold a molded article containing organic acid and carbonate as main components into one form, such as a tablet, so in order to simplify it, there is no choice but to use the two substances indicated in Patent Document 1, which makes packaging and storage inconvenient, etc. there was a problem with In addition, there was a problem in that a special breeter is required during manufacturing and the manufacturing cost is inevitably increased.

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a foamable cosmetic with excellent percutaneous absorption performance of carbon dioxide, moisture-proof property, water solubility and economical efficiency.

In order to achieve the above object, the present invention provides at least one organic acid among citric acid, fumaric acid, malic acid and succinic acid, sodium hydrogen carbonate, and polyethylene glycol having an average molecular weight of 2000 to 8000 or less (preferably 4000 to 6000). As a granular molded article, with respect to 1 part by weight of the organic acid, 0.7 parts by weight to 1.5 parts by weight of the sodium hydrogen carbonate and 0.08 parts by weight to 0.20 parts by weight of polyethylene glycol.

As a preferred embodiment of the present invention, the granular molded body is, for example, less than 7 mm thick, more preferably 5 mm or less, and a hardness of 3.0 KN or more and 24.0 KN or less (preferably 5.0 KN or more and less than 15.0 KN). .

As a preferred example of the present invention, the granular molded article may be formed by compression molding having a predetermined shape, a diameter of less than 7 mm, a maximum thickness of less than 7 mm, and more preferably a diameter of 5 mm and a maximum thickness of 5 mm.

In this foaming cosmetic, it is necessary to contain at least one kind of organic acid among citric acid, fumaric acid, malic acid and succinic acid. In this case, citric acid is particularly suitable because it has a particularly high chelating effect among organic acids, so that when carbon dioxide is percutaneously absorbed, the effect of dissolving old keratin of the skin is remarkably good.

In addition, if hardness is a value measured by the method of hardness test of tablets, using a test body produced in a predetermined shape (diameter 5 mm × maximum thickness 4 mm), compressive force in a uniaxial state in the thickness direction (height direction of the test body) It refers to the value of the extrusion force (compressive fracture strength) when the specimen is compressed. (Unit is KN) In addition, hardness can be measured with a general durometer, for example (type using a strain gauge type load cell similar to the durometer used in Examples).

Moreover, the granular molded body does not depend on the shape of the Bri-R phase and the tablet phase, but the Bri-Ren film? It is preferable from the viewpoint of hardness and productivity.

In the foamable cosmetic of the present invention, the organic acid, sodium hydrogen carbonate and an appropriate amount of polyethylene glycol are mixed in the above mixing ratio and then molded to pressurize the raw material at the time of molding, so that polyethylene glycol leaches into the surface layer of the pressurized body and destroys the surface layer part. will do Therefore, as the surface temperature is lowered, it is possible to suppress the neutralization reaction of both by preventing the solidification exotherm and by preventing friction between the organic acid and the carbonate. Therefore, it is possible to improve the moisture-proof property and make one-agent foamable cosmetics with improved preservation.

In addition, from the action of water-soluble polyethylene glycol according to the above mixing ratio, an aqueous solution having a concentration of 1000 ppm or more corresponding to a carbonated hot spring having a medical effect can be easily prepared even at a low temperature.

In addition, in the present foaming cosmetic, it is suitable to contain 0.1 to 1.0 parts by weight (preferably 0.3 to 0.6 parts by weight) of the anti-adhesive agent with respect to 100 parts by weight of the total amount of the foaming cosmetic. .

The anti-adhesive agent needs to have handling convenience (one that is simple to pulverize and can be finely divided) among surfactants, that the mixing component is good, that there is little foaming, that there must be stability, etc., so sodium n-octanesulfonate , sodium n-hexanesulfonate, sodium tetradecenesulfonate, and sucrose fatty acid esters, at least one type or a mixture of multiple types can be used. In particular, it is preferable to use sodium n-octanesulfonate and sodium n-hexanesulfonate.

In this foamable cosmetic, the adhesion of the composition to the molding device during molding can be prevented by the action of the anti-adhesive agent, so that productivity and economic efficiency can be improved.

In addition, the above-mentioned brightness (L*) of 80 or more and chroma (C*) of 10.0 or less can be easily made by the formulation composition of the foaming cosmetic, and the appearance can be improved because the surface part can be made into a molded article without irregularities coated with polyethylene glycol. can do it

Moreover, the lightness (L*) and the chroma (C*) are values quantitatively specified as coordinates of the L*a*b* color space chromaticity diagram defined in "JIS Z8781-4".

C*=√｛(a*) ² + (b*) ² ｝

a*: chromaticity as a component in the direction of red-violet and cyan

b*: chromaticity as a component in the yellow and blue directions

According to the present invention, it is possible to provide a one-agent foamable cosmetic excellent in percutaneous absorption of carbon dioxide, moisture resistance, water solubility and economy.

1A is a drawing substitute photograph showing an example of the molded article of the foamable cosmetic of the present invention.
Fig. 1B is a drawing substitute photograph showing an example of a molded article of a foamable cosmetic of a comparative example.

Hereinafter, the optimum state of the present invention will be described in detail. However, the embodiment of the present invention is not limited to the illustrated embodiment.

The basic considerations of the foamable cosmetic of the present invention are as follows.

When free carbonic acid is dissolved in water, an equilibrium reaction shown in the following [Scheme 1] occurs.

This equilibrium reaction is affected by pH, but the more alkaline the aqueous solution, the more free carbonic acid can be stored in the aqueous solution. However, in the state of free carbonic acid, it is difficult to be absorbed percutaneously, and it is difficult to obtain an effect equivalent to that of natural carbonated hot springs.

[Scheme 1]

CO ₂ + H ₂ O *?* HCO ^{3 -} + H ⁺

In the transdermal absorption mechanism, in the vicinity of the acidic (pH less than 7) protective layer of human skin (hereinafter referred to as "skin protective layer"), free carbonic acid is converted into carbon dioxide, and the carbon dioxide is absorbed.

Here, the carbon dioxide that can be transdermally absorbed is carbon dioxide generated by the change of free carbonic acid in the skin protective layer portion. This is understood as the reason that carbon dioxide present in the air is difficult to be absorbed percutaneously.

Under the above premise, the present inventor repeats an experiment to manufacture a molded article in which the mixing ratio of the constituent materials is changed and confirms the change in properties, and finds a blending ratio that can properly prevent deterioration even if it exists as a molded article, and the foamable cosmetic of the present invention has been developed

The materials constituting the foamable cosmetic of the present invention will be described as follows.

The foamable cosmetic of the present invention achieves the above object by containing an organic acid, sodium hydrogen carbonate, polyethylene glycol, an anti-adhesive agent and the like as main constituent materials (constituent substances). Hereinafter, the constituent materials thereof will be described in detail.

(1) organic acids and sodium bicarbonate

The organic acid neutralizes sodium bicarbonate and effectively generates carbon dioxide foam, and when it is received, it is a component responsible for the cleansing effect of the skin and the effect of maintaining the flexibility of the skin. Citric acid, One or a plurality of substances of fumaric acid, malic acid and succinic acid may be used. The cosmetic effect is different depending on the type of organic acid, but citric acid is a good organic acid that can improve foaming performance because it has a remarkably high reactivity compared to other organic acids.

(2) polyethylene glycol

Polyethylene glycol is a substance that can be obtained by polymerization of ethylene oxide as is known, and is a substance having water solubility, non-volatileness and viscosity. In the foamable cosmetic of the present invention, the function of this material is important, such as a binder (binder) that binds organic acids and constituent materials such as sodium bicarbonate, coating of the surface layer of the molded body, and accelerating the dissolution of sodium bicarbonate in water. is playing a role.

That is, polyethylene glycol is fine particles when mixed, but when pressed, a part of it is liquefied and leached into the surface layer of the molded body to become a solid, thereby forming a coating film on the surface layer to improve moisture resistance.

In addition, in the above process, according to the pressing force and blending amount, a part moves into the molded body and attaches to the sodium bicarbonate surface layer to prevent direct contact between the organic acid and sodium bicarbonate. At this time, the larger the amount of polyethylene glycol and the higher the adhesion to sodium bicarbonate (in these two substances, the adhesion is transferred from point to cotton), the more sodium bicarbonate dissolves in water due to the action of polyethylene glycol having water solubility. it becomes easy

The degree of the action of the polyethylene glycol varies depending on the pressing force and content. That is, when there is little content of a foreign material, a coating film cannot fully be formed. However, when excessively contained, if the pressing force is large (formed product hardness of 24.0KN or more), the coating film becomes too thick, lowering solubility during use, and hindering the expected effect, making it difficult to prepare an aqueous solution of the required concentration. Moreover, even when it has a desired content of polyethyleneglycol, when a pressing force is small (formed object hardness less than 3.0 KN), since there is little deterioration of polyethyleneglycol, it will not flow.

For this reason, in this foamable cosmetic, use the following blending ratio without overload to exert a predetermined effect with respect to polyethylene glycol, and use a predetermined pressure at the time of molding (the hardness of the molded product is 3.0KN to 24.0KN, preferably 5.0KN to 15.0 less than KN).

Furthermore, polyethylene glycol is a substance having an average molecular weight of 2000 or more to 8000 or less, particularly preferably 4000 or more to 6000 or less, taking into consideration the functionality as a water-soluble binder, ease of handling during molding, and adhesion to the device (viscosity, etc.). It is preferable to use

(3) Anti-adhesion agent

It is a material added to prevent clumping materials from adhering to the molding device during molding. At least one of the chemicals of sodium n-octanesulfonate, sodium n-hexanesulfonate, sodium tetradecenesulfonate, and sucrose fatty acid esters should be used in consideration of handling instructions, crushability, anti-foaming properties, safety and economic feasibility. , it is best to use singular or a mixture of plural types, especially sodium n-octanesulfonate and sodium n-hexanesulfonate.

(4) other constituent materials

Thickeners (such as hyaluronic acid, sodium hyaluronate, collagens and glycerin), antioxidants (L-ascorbic acid other than L-ascorbate), which are widely used in cosmetics within the scope that does not impair the function of the effervescent cosmetic of the present invention. , L-ascorbic acid derivatives, ersorbic acid, ersorbic acid salt, L-isoascorbic acid and L-isoascorbic acid salt), and other various additives, fragrances, pigments, etc. may be added.

(5) Mixing ratio, etc.

The foamable cosmetic of the present invention has a thickness of less than 7 mm, preferably 5 mm, and particularly, a hardness of 3.0 KN or more to 24.0 KN or less, preferably 5.0 KN or more and less than 15.0 KN. (For the hardness, refer to the description of the means to solve the problem), this is the amount of heat energy converted from the pressure for making a molded article with a thickness of 5 mm or less, which is necessary to make the hardness of the molded body from 3.0KN to 24.0KN and polyethylene as described above As a result of verifying the optimal ratio with the amount of glycol, the following mixing ratio was derived.

In order to obtain the effect of the foamable cosmetic of the present invention, it is preferable to mix 0.08 parts by weight to 0.20 parts by weight of the polyethylene glycol in 0.7 parts by weight to 1.5 parts by weight of the sodium hydrogen carbonate with respect to 1 part by weight of the organic acid.

It is preferable to contain 0.1 to 1.0 parts by weight of at least one of sodium n-octanesulfonate, sodium n-hexanesulfonate, sodium tetradecenesulfonate and sucrose fatty acid ester based on 100 parts by weight of the total amount of the foaming cosmetic. Do.

In the case of the above blending ratio, the total amount of carbonate, for example, hydrogen carbonate ion, carbonate ion, and free carbon dioxide amount, can be set to a concentration of 1000 ppm or more, which is equivalent to a carbonate spring known to have a medical effect. Furthermore, the foamable cosmetic of the present invention needs to be adjusted by adding a known pH adjuster or the like so that it becomes pH=5.0~pH=6.8, preferably pH=5.5~pH=6.5 upon receiving, but the pH adjuster is sodium carbonate, preferably anhydrous. It is best to use sodium carbonate.

(6) Brightness and Saturation

In the case of the above blending ratio, when the lightness index (L*) is 80 or more and 100 or less, and the chroma index (C*) is 10.0 or less, and it is not colored with other colorants, yellow and blue have strong color tones. For brightness and saturation, refer to the description of means for solving the problem.

1A is a molded article of the present foamable cosmetic (containing 1.2 parts by weight of sodium hydrogen carbonate, 0.12 parts by weight of polyethylene glycol, and a hardness of 6.5 KN with respect to 1 part by weight of citric acid) (hereinafter referred to as the target molded article) In the photograph substituted for the drawing, the gloss of the surface portion can be visually confirmed compared with the molded article of the foamable cosmetic of the comparative example shown in FIG. 1B (polyethylene glycol is subtracted from the formulation of the target molded article).

Hereinafter, an example of a method for manufacturing a foamable cosmetic according to the present invention will be described.

The foamable cosmetic of the present invention can be manufactured by mixing the above constituent materials and adjusting the desired shape thickness and hardness using a known mixing device and molding device (breeter).

For example, the mixing material is supplied from a mixing device equipped with a rotatable ski blade in a hanging drum and a mixing device equipped with a roll capable of adjusting each rotation, and the mixed material is pressurized to form a desired shape. A molding device for molding with R can be used.

Using this molding device, put the total amount of sodium bicarbonate and 30% to 40% by weight of polyethylene glycol based on the total amount in the mixing section, and mix and stir the material sufficiently to cause three-dimensional flow through centrifugal diffusion and vortex flow. Next, add the total amount of the organic phase, the remaining amount of polyethylene glycol, and other raw materials except for the anti-adhesive agent to the mixer, and mix thoroughly in the same manner as above. Finally, add an anti-adhesive agent and mix thoroughly.

Subsequently, the mixed material is supplied to the molding device and the desired shape is molded. By adjusting at least one of the feeding speed of the mixed material and the rotational speed of the roll from the mixing device to the molding device (roll type), a molded body having a desired thickness, shape and hardness can be formed.

The operation and effect of the present invention will be described.

According to the foamable cosmetic of the present invention, by adding an appropriate amount of polyethylene glycol to an organic acid and sodium hydrogen carbonate, when a constituent material is pressurized during molding, polyethylene glycol is melted due to heat generated by compression energy or the surface portion of the pressurized body is The polyethylene glycol is leached or the surface layer is covered, and a coating film is formed. This makes it possible to prevent friction between the organic acid and sodium bicarbonate, suppress the neutralization reaction of both, and reduce the surface temperature and prevent heat generation due to solidification. Therefore, it is possible to improve the moisture-proof properties and to make foamable cosmetics with excellent preservation properties of one agent.

In addition, in foaming cosmetics, it is particularly effective to use hot water with a body temperature of 36° C. or higher, but water solubility at low temperature can be improved by adding an appropriate amount of polyethylene glycol having water solubility. Therefore, it can be used as an aqueous solution having a concentration of 1,000 ppm, which is equivalent to a carbonated hot spring that has a medical effect even at low temperatures.

In addition, by setting the hardness of the foamable cosmetic of the present invention to 3.0 KN or more to 24.0 KN or less, preferably 5.0 KN to less than 15.0 KN, the neutralization reaction rate of the organic acid and sodium hydrogen carbonate generated at the time of dissolution of the molded product is appropriately controlled. Therefore, it is possible to achieve a free carbon concentration in which the blood flow improvement effect is excellently exhibited.

Furthermore, since an anti-adhesive agent containing at least one of sodium n-octanesulfonate, sodium n-hexanesulfonate, sodium tetradecenesulfonate and sucrose fatty acid ester compound is mixed, the composition adheres to the molding device during molding. This can be prevented, so that productivity and economy can be improved.

In addition, by the formulation of the foaming cosmetic of the present invention, it is possible to make a molded body without irregularities in which the surface layer part having a lightness (L*) of 80 or more and a chroma index (C*) of 10.0 or less is coated with polyethylene glycol, and the appearance can be easily formed.

Although an example of a preferred embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and appropriate design changes are possible without departing from the spirit of the present invention, and the function of the foamable cosmetic of the present invention is not impaired. Other various additives widely used in cosmetics can be mixed in the range. Also, there is no restriction on the shape of the foamable cosmetic of the present invention. Furthermore, the manufacturing method may include other appropriate steps regardless of the type of molding apparatus.

[Experimental example]

Hereinafter, the effect of this foaming cosmetic is verified through additional experimental examples. Moreover, in the following description, the same test specimen is given the same name and the same number is given to the same material, and repeated explanations are omitted.

<Preparation of test specimen (common to each experimental example)>

Before the detailed description, the preparation method of the specimen used in each experimental example will be described.

(1) Process 1

200 kg of sodium bicarbonate and 12 kg of polyethylene glycol (average molecular weight 6000) are added to a mixing device (Loedige mixer type VT1200 manufactured by Matsubo Co., Ltd.), and the mixture is stirred and mixed at a rotational speed of 115 rpm for 10 minutes.

(2) Process 2

After completion of step 1, 200 kg of anhydrous citric acid, 17 kg of anhydrous sodium carbonate and 11 kg of polyethylene glycol are added, and the mixture is stirred and mixed for 10 minutes at 115 rpm at rotation speed.

(3) Process 3

After step 2 is completed, 2 kg of sodium n-octanesulfonate is added, and the mixture is stirred and mixed for 2 minutes at 115 rpm at rotation speed.

(4) Process 4

The mixed material made in step 3 is supplied to a molding device (BSS-IH, a roll-type high-pressure granulator manufactured by Sintokogyo Co., Ltd.), and a test specimen of the desired hardness in the shape of a tablet with a diameter of 5 mm, thickness of 4 mm, and weight of 1.0 g is made. .

The hardness of the standard test specimens corrected for hardness (each specimen No1-1 and Examples 2 to 7 below) was 6.5 KN. For hardness, measure the breaking strength in the thickness direction of 10 specimens using a durometer (DC-200 manufactured by Okataseiko Co., Ltd.) in an environment of 23℃±3℃ at room temperature and 40% relative humidity. After removing the maximum and minimum values, 8 specimens were tested. It was set as the value which calculated|required the arithmetic mean.

When 15 aqueous solutions of the following reference specimen (No1-1) are dissolved in 1 L tap water (25° C.), the pH is 5.60.

<Experimental Example 1> [Moisture-proof performance check test]

In order to confirm the moisture-proof performance, which is one of the advantages of the foamable cosmetic of the present invention, a moisture-proof performance confirmation test was performed. That is, 15 specimens of each specimen were placed in a commercially available aluminum pouch and sealed by making specimens with different amounts of sodium hydrogen carbonate, polyethylene glycol, and hardness with respect to citric acid. Then, it was placed in a constant temperature bath at 40° C. and the optimal rate of change of each specimen was measured immediately after sealing and after one week after sealing. In addition, the lightness (L*) and chroma (C*) of the specimen were measured with a colorimeter (M200 QC manufactured by X-rite).

[Optimal rate of change]

Optimal change rate (%) = (Volume at one week after sealing - Volume immediately after sealing * 100 / Volume immediately after sealing)

According to this result (Table 1), a volume change was seen in the non-target specimens of this foaming cosmetic, but the test specimens with a mixing ratio that satisfies this foaming cosmetic (hereinafter referred to as “the test specimen of this foamable cosmetic”) (indicated by ○ in the table) Indicated)) There was no volume change in the specimen (0%).

The volume change is due to the neutralization reaction of citric acid and sodium bicarbonate, and it was confirmed that the neutralization reaction did not occur in the test specimen of this effervescent cosmetic and the storage performance was good.

In addition, the test body of the foamable cosmetic according to the present invention was molded to have a hardness of 3KN or more, so that the brightness (L*) was 80 or more and the chroma (C*) was 10 or less. During molding, the polyethylene glycol during mixing and manufacturing due to the action of molding pressure is melted and discharged to the surface layer to be solidified. As a result, a coating film is formed, resulting in changes in brightness and chroma. confirmed that it can be formed.

On the other hand, when the ratio of citric acid and polyethylene glycol does not satisfy the foaming cosmetic formulation or hardness, it was found that the polyethylene glycol does not work.

test specimen citric acid for parts by weight Hardness brightness saturation volume effervescent Amount of the following substances (parts by weight) NO hydrogen carbonate
salt polyethylene (KN) (L*) (C*) Conversation rate (%) cosmetics glycol 1-1 1.0 0.12 6.5 85 4 0 ○ 1-2 1.0 0.12 2.9 79 11 56 1-3 1.0 0.12 3.0 80 9 0 ○ 1-4 1.0 0.12 5.0 84 7 0 ○ 1-5 1.0 0.12 10.0 88 3 0 ○ 1-6 1.0 0.12 15.0 88 3 0 ○ 1-7 1.0 0.12 24.0 90 3 0 ○ 1-8 1.0 0.12 24.0 79 11 26 1-9 0.6 0.12 6.5 78 13 168 1-10 0.7 0.12 6.5 80 10 0 ○ 1-11 1.5 0.12 6.5 80 3 0 ○ 1-12 1.6 0.12 6.5 78 11 174 1-13 1.0 0.07 6.5 78 11 165 1-14 1.0 0.08 6.5 80 10 0 ○ 1-15 1.0 0.20 6.5 83 10 0 ○ 1-16 1.0 0.21 6.5 79 11 140 1-17 0.6 0.08 3.0 79 11 138 1-18 0.6 0.20 6.5 79 11 38 1-19 0.7 0.07 2.9 75 15 129 1-20 0.7 0.08 2.9 76 14 120 1-21 0.7 0.08 3.0 80 10 0 ○ 1-22 1.5 0.20 24.0 81 10 0 ○ 1-23 1.5 0.20 24.1 79 13 30 1-24 1.5 0.21 24.0 79 11 28

<Experimental Example 2> [Dissolution performance confirmation test]

In order to confirm the dissolution performance, which is one of the efficacy of the foamable cosmetic of the present invention, a dissolution performance confirmation test was performed. That is, a test specimen with varying amounts of sodium hydrogen carbonate and polyethylene glycol relative to citric acid was prepared and the time required to dissolve 15 specimens in 1 L tap water (water temperature 20° C.) (hereinafter referred to as “dissolution time”) was measured.

According to this result (Table 2), in the test specimen in which the mixing ratio of polyethylene glycol to organic acid is not the subject of the invention of the foamable cosmetic, it took a long time (283 seconds or more) to dissolve tap water, and it took a long time (less than 180 seconds) In order to dissolve, it was confirmed that the mixing ratio of organic acid and sodium bicarbonate should be within the range of this foaming cosmetic. In particular, when the mixing ratio of polyethylene glycol with respect to 1 part by weight of citric acid is less than 0.8, the absolute amount is insufficient, and even when it exceeds 0.20, the coating film becomes thick, so that it takes a long time to dissolve in tap water as well.

test specimen citric acid for parts by weight Hardness 20℃ tap water main foaming Amount of the following substances (parts by weight) NO sodium bicarbonate polyethylene (KN) dissolution time (sec) cosmetics glycol 1-1 1.0 0.12 6.5 96 ○ 1-9 0.6 0.12 6.5 283 1-10 0.7 0.12 6.5 96 ○ 1-11 1.5 0.12 6.5 175 ○ 1-12 1.6 0.12 6.5 1130 1-13 1.0 0.07 6.5 310 1-14 1.0 0.08 6.5 96 ○ 1-15 1.0 0.20 6.5 176 ○ 1-16 1.0 0.21 6.5 360

<Experimental Example 3> [Test to confirm the improvement effect such as blood circulation]

In order to confirm the effect of improving blood circulation during bathing, which is one of the effects of the foaming cosmetic of the present invention, a test was conducted to confirm the effect of improving blood circulation. That is, a test specimen in which the amount of sodium bicarbonate and polyethylene glycol was changed with respect to citric acid was made, and the tester was bathed in 160L hot water (water temperature 40°C) in which 45 specimens were dissolved, and the improvement of blood circulation due to carbon dioxide was measured.

In this test, 10 subjects (mean age 40.5 years old, women aged 25-60 years) were subjected to (1) just before bathing (TB), (2) immediately after bathing (TA), and (3) 1 hour after bathing (TA'). ), the temperature change immediately after bathing and the change in humidity after one hour were converted by measuring the skin temperature of the dorsum of the right foot. Therefore, by calculating the average value of the subject's temperature change immediately after bathing and the amount of temperature change after one hour has elapsed, the evaluation index of the temperature change immediately after bathing [the temperature change value immediately after bathing (T1)] and the evaluation index of the temperature change after 1 hour [1 hour elapsed] post-temperature change value (T2)].

The bathing time was set to 20 minutes, and the subject was allowed to rest in a room set at 25°C after bathing. In addition, a non-contact (infrared thermometer TO-400 manufactured by Tritech Co., Ltd.) was used to measure the skin temperature.

[Temperature change]

T1 = ∑i｛TA(i) - TB(i)｝ / 10

T2 = ∑i｛TA'(i) - TB(i)｝ / 10

T1: Temperature change immediately after bathing (℃)

T2: Temperature change value after 1 hour (℃)

TB(i): Epidermal temperature (°C) of subject i's right dorsum just before bathing

TA(i): Epidermal temperature (°C) of the right dorsum of subject i immediately after bathing

TA’(1): Epidermal temperature of subject I’s right dorsum (°C) after one hour of bathing

∑ I: represents 10 subjects (i = the sum of 1 to 10)

According to this result (Table 3), the body temperature of the test body of the presenting cosmetic product (marked with ○ in the table) after bathing has a body temperature increase effect that the body temperature rises by 1.0°C or more, and the thermal insulation effect that the body temperature drops only 0.3°C even after 1 hour It was confirmed that the effect was maintained. On the other hand, it was confirmed that the increase in body temperature was as low as 0.7° C. or less even after bathing in the test specimen of the unsatisfactory formulation of the foaming cosmetic, and the decrease in body temperature was 0.6° C. or more after 1 hour after bathing. As described above, the effect of improving blood flow and increasing body temperature was confirmed in this foaming cosmetic due to the percutaneous absorption of carbon dioxide.

test specimen citric acid for parts by weight Hardness right after bathing 1 hour later Bone effervescent Amount of the following substances (parts by weight) NO hydrogen carbonate
salt polyethylene (KN) temperature change ℃ temperature change ℃ cosmetics glycol 1-1 1.0 0.12 6.5 2.1 0.1 ○ 1-9 0.6 0.12 6.5 0.1 1.0 1-10 0.7 0.12 6.5 1.0 0.3 ○ 1-11 1.5 0.12 6.5 2.2 0.1 ○ 1-12 1.6 0.12 6.5 0.3 1.1 1-13 1.0 0.07 6.5 0.7 0.6 1-14 1.0 0.08 6.5 1.1 0.2 ○ 1-15 1.0 0.20 6.5 1.7 0.2 ○ 1-16 1.0 0.21 6.5 0.7 0.6

<Experimental Example 4> [Whitening effect confirmation test]

In order to confirm the whitening effect, which is one of the effects of the foaming cosmetic of the present invention, a whitening confirmation effect test was confirmed. That is, when the subject washed his face with 1L tap water (water temperature 25℃) (hereinafter referred to as “face-washing water”) in which 15 specimens were dissolved by making a test specimen with varying amounts of sodium bicarbonate and polyethylene glycol for citric acid. The status was checked.

In this test, as in Experimental Example 3, 10 subjects (average age 40.5 years old, female 25-60 years old) were subjected to washing with both hands 20 times every morning using the above face wash water for 20 days, and the skin condition immediately after the final washing. was measured. The skin condition is analyzed by numerical analysis of the photographed image by photographing the skin condition using a lens (manufactured by Mark Cell Smart Communications, skin condition 「Memoret]) that can be connected to a smartphone to take high-definition pictures of skin blemishes and wrinkles. The transparent skin area was measured and the transparency (%) was calculated by the following formula.

Transparency (%) = (non-dark transparent skin area/total skin area)*100)

Then, using the calculated transparency, the degree of whitening (lowest evaluation 1 to highest evaluation 5) was defined based on the evaluation criteria (Table 4) of the following 5 steps, and it was determined that the predetermined efficacy (whitening effect) was shown in the case of evaluation 3 or more. .

evaluation Judgment Criteria evaluation 1 Transparency 0% to less than 20%: The entire skin is dull and there is no sense of transparency at all. evaluation 2 Transparency 20% or more and less than 40%: Most of the skin is dull and it is difficult to feel the transparency. evaluation 3 Transparency 40% or more and less than 60%: A state where there is little dullness and a slight sense of transparency can be felt evaluation 4 Transparency 60% or more and less than 80%: Transparency is felt at all evaluation 5 Transparency 80% or more 100%: No dullness and remarkably high transparency

As shown in this result (Table 5), it was found that there was a whitening effect (evaluation 3 or higher) when washing the face using face wash in which the test body of this foaming cosmetic (marked with ○) was dissolved.

From this, it was confirmed that carbon dioxide generated at the time of dissolution of this foaming cosmetic test was percutaneously absorbed, thereby improving blood flow and promoting skin metabolism.

test specimen citric acid for parts by weight Hardness Whitening degree evaluation main foaming Amount of the following substances (parts by weight) NO hydrogen carbonate
salt polyethylene (KN) cosmetics glycol 1-1 1.0 0.12 6.5 5 ○ 1-9 0.6 0.12 6.5 One 1-10 0.7 0.12 6.5 4 ○ 1-11 1.5 0.12 6.5 3 ○ 1-12 1.6 0.12 6.5 2 1-13 1.0 0.07 6.5 One 1-14 1.0 0.08 6.5 3 ○ 1-15 1.0 0.20 6.5 4 ○ 1-16 1.0 0.21 6.5 2

<Experimental Example 5> [Test to confirm the whitening effect according to the type of organic acid]

In order to demonstrate the whitening effect of the foaming cosmetic of the present invention according to the type of organic acid, citric acid (No 1-1), fumaric acid (No 5-1), malic acid (No 5-2), succinic acid (No 5-3) ) was used to make four types of test specimens, and a whitening effect confirmation test was performed as in Example 4.

According to this result (Table 6), in the test specimen (No 1-1) using citric acid as an organic acid, the whitening degree was the highest evaluation 5, and fumaric acid (No 5-1) and malic acid (No 5-2) evaluation 4, succinic acid (No 5-3) In evaluation 3, citric acid was found to be highly effective. From this, citric acid has a great effect of dissolving and removing old dead skin cells from the skin, and it has been proven that a relatively large amount of carbon dioxide is absorbed percutaneously, thereby improving blood flow and maintaining warmth.

test specimen organic acid name Whitening degree evaluation NO. 1-1 citric acid 5 5-1 fumaric acid 4 5-2 malic acid 4 5-3 succinic acid 3

<Experimental Example 6> [Test to determine the effect of each anti-adhesive agent on molding]

Sodium n-octanesulfonate (No 1-1) as an anti-adhesive agent in order to demonstrate the effect of preventing adhesion of the mixed material to the molding apparatus that appears during molding according to the melting of the addition of the anti-adhesive agent and the difference in the target material of the anti-adhesive agent; Regarding sodium n-hexanesulfonate (No 6-1), sodium tetradecenesulfonate (No 6-2) and sucrose fatty acid ester (No 6-3), without addition of an anti-adhesive agent (No 6-4) A test specimen was made and this confirmation test was conducted.

That is, when the molding apparatus (refer to step 4) was operated continuously for 24 hours to make each specimen, the total weight of the specimen was calculated as the molding ratio with respect to the total weight of the supplied mixed material. (When the molding rate is low It means that the amount of mixed material adhering to the molding device is large.

Molding rate (%) = total weight of test body × 100 / total weight of supplied mixed material

According to this result (Table 7), each specimen with anti-adhesive agent added (water supply 1-1, No 6-1 ~ No 6-3) had a molding rate of 97% or more, and specimens without adhesive agent (No 6-) 4) The molding rate was 95% or more, and it was confirmed that the adhesion prevention effect was excellent. Furthermore, as a result of conducting such a test using a specimen to which kaolin and bentnite were added instead of the anti-adhesive agent not indicated in the data, the adhesion amount was about 90%, and the adhesion amount increased compared to the case where the adhesion inhibitor was not added. became

Among the anti-adhesive agents, when sodium n-octanesulfonate was used, the molding rate was 100%, and the molding rate when the other three types of anti-adhesive agents was used exceeded 97% or more. According to this example, it was confirmed that the anti-adhesion effect of sodium n-octanesulfonate was excellent.

test specimen Anti-adhesive agent name molding rate NO (%) 1-1 Sodium n-octanesulfonate 100% 6-1 Sodium n-hexanesulfonate More than 97%~99% 6-2 Sodium Tetradecenesulfonate More than 97%~99% 6-3 sucrose fatty acid ester More than 97%~99% 6-4 none 95% or more to less than 97%

<Experimental Example 7> [Test to confirm the whitening effect according to the pH of the aqueous solution of dissolution]

In order to demonstrate the whitening effect of the foaming cosmetic according to the pH of the aqueous solution after dissolution, the amounts of citric acid and sodium carbonate anhydrous (pH adjuster) were adjusted to meet the mixing ratio of the foaming cosmetic, and 7 types of specimens were prepared (Table 8). ). As in Experimental Example 4, a whitening effect confirmation test was performed.

According to this result (Table 8), the pH was 5.0 to 6. In the eight specimens (No 1-1, No7-2 ~ No 7-5), the whitening degree was 4th or higher, and the effect was high. In particular, the highest evaluation of 5 in the test specimens (No 1-1, No7-3, No7-4) with a pH of 5.5 to 6.5, indicating a significantly high effect.

test specimen pH Whitening degree evaluation NO 1-1 5.6 5 7-1 4.9 3 7-2 5.0 4 7-3 5.5 5 7-4 6.5 5 7-5 6.8 4 7-6 6.9 3

Claims (4)

A molded article in the form of granules containing at least one organic acid among citric acid, fumaric acid, malic acid and succinic acid, sodium bicarbonate, and polyethylene glycol having an average molecular weight of 2000 to 8000 or less, with respect to 1 part by weight of the organic acid, the sodium hydrogen carbonate Effervescent cosmetic, characterized in that it contains 0.7 parts by weight to 1.5 parts by weight and 0.08 parts by weight to 0.20 parts by weight of polyethylene glycol.
The foamable cosmetic according to claim 1, wherein the granular molded article has a thickness of less than 7 mm and a hardness of 3.0 KN or more to 24.0 KN or less.
The method according to claim 1, wherein 0.1 parts by weight to 1.0 parts by weight of the anti-adhesive agent is contained based on 100 parts by weight of the total amount of the foamable cosmetic, wherein the anti-adhesive agent is sodium n-octanesulfonate, sodium n-hexanesulfonate, tetra Effervescent cosmetic comprising at least one of sodium decenesulfonate and sucrose fatty acid ester.
The foamable cosmetic according to claim 1, 2, or 3, wherein the lightness is 80 or more and the chroma is 10.0 or less.

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