Oil-in-water emulsified composition and wiping-off cosmetic

Abstract

To provide an oil-in-water emulsified composition which reduces a superficial feeling when applied to the skin and maintains a moist feeling without giving a dry feeling and a wiping-off cosmetic containing the oil-in-water emulsified composition.SOLUTION: There is provided an oil-in-water emulsified composition comprising (A) a clay mineral and (B) at least one low viscosity silicone oil selected from linear dimethylpolysiloxanes, wherein the content of the component (A) is 0.001 to 10 mass% based on the entire composition, the content of the component (B) is 0.001 to 10 mass% based on the entire composition and the ratio ((B) / (A)) of the content of the component (B) to the content of the component (A) is 0.01 to 1.0.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to an oil-in-water type emulsion composition and a wiping cosmetic containing the oil-in-water type emulsion composition.

Background Art

[0002] In an emulsion composition used on the face, it is important that there is no slippery feeling when spreading the emulsion composition uniformly on the skin, there is no dry feeling of the skin after application, and the moisturizing feeling of the skin is maintained, and the texture of the skin is improved. Here, the slippery feeling means that when an emulsion cosmetic is taken on a fingertip or the like and applied to the face, it feels as if a liquid oil agent is being stretched and spreads indefinitely on the skin, and there is no real feeling of stretching while the emulsion composition adheres to the skin.

[0003] Regarding the lack of a slippery feeling when applying to the skin, it has long been known that adding a pigment to an emulsion composition increases the adhesion to the skin. For example, as disclosed in Non-Patent Document 1, a combination of inorganic pigments such as mica and talc has been widely used. However, when the above-mentioned inorganic pigments are used in combination with the emulsion composition, although the slippery feeling during application of the emulsion composition can be reduced, there are problems such as a dry feeling and a peculiar crunching feeling after application to the skin, so that the moisturizing feeling does not last. Therefore, an emulsion composition that reduces the slippery feeling when applied to the skin and maintains the moisturizing feeling without giving a dry feeling is desired.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide an oil-in-water type emulsion composition that reduces the slipperiness when applied to the skin, maintains a moist feeling without giving a dry feeling, and a wiping cosmetic containing the oil-in-water type emulsion composition.

Means for Solving the Problems

[0006] As a result of intensive studies to achieve the above problems, it has been found that the above problems can be solved by an oil-in-water type emulsion composition combined with at least one low-viscosity silicone oil selected from clay minerals and silicone oils, and the present invention has been completed.

[0007] That is, the oil-in-water type emulsion composition according to the present invention contains (A) a clay mineral and (B) at least one low-viscosity silicone oil selected from linear dimethylpolysiloxane, the content of component (A) is 0.001 to 10% by mass with respect to the total composition, the content of component (B) is 0.001 to 10% by mass with respect to the total composition, and the ratio of the content of component (B) to the content of component (A) ((B) / (A)) is 0.01 to 1.0.

[0008] The oil-in-water type emulsion composition according to the present invention can reduce the slipperiness when applied to the skin and maintain a moist feeling without giving a dry feeling with such a configuration.

[0009] The oil-in-water type emulsion composition according to the present invention may further contain (C) an anti-inflammatory component.

[0010] The oil-in-water type emulsion composition according to the present invention can improve the disturbance of the skin texture with such a configuration.

[0011] In the oil-in-water type emulsion composition according to the present invention, component (A) may be kaolin and / or sea silt.

[0012] The oil-in-water type emulsion composition according to the present invention can further reduce the slipperiness when applied to the skin and maintain a moist feeling without giving a dry feeling with such a configuration.

[0013] The makeup remover cosmetic according to the present invention contains the above oil-in-water type emulsion composition.

[0014] The makeup remover cosmetic according to the present invention can reduce the slippery feeling when applied to the skin with such a configuration, and can maintain a moist feeling without giving a dry feeling.

Effect of the Invention

[0015] According to the present invention, it is possible to provide an oil-in-water type emulsion composition that can reduce the slippery feeling when applied to the skin and can maintain a moist feeling without giving a dry feeling.

Mode for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present invention will be described in detail, but the present invention is not limited to the following embodiments. The present invention is not limited to each configuration described below, and various modifications are possible within the scope shown in the claims. Embodiments and examples obtained by appropriately combining the technical means disclosed in different embodiments and examples are also included in the technical scope of the present invention. In addition, in this specification, unless otherwise specified, "A to B" representing a numerical range is intended to mean "A or more and B or less".

[0017] (Oil-in-water type emulsion composition) The oil-in-water type emulsion composition according to the present embodiment contains at least one low-viscosity silicone oil selected from (A) clay minerals and (B) linear dimethylpolysiloxane.

[0018] Component (A) used in the water-in-oil emulsion composition according to this embodiment is a clay mineral. In the water-in-oil emulsion composition according to this embodiment, the clay mineral has no scratching feeling and reduces the slipperiness during application. The clay mineral only needs to be able to reduce the slipperiness during the application of the water-in-oil emulsion composition, and there is no limitation. Examples of the clay mineral include kaolin, marine silt, sericite, montmorillonite, kaolinite, mica, muscovite, phlogopite, synthetic mica, red mica, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, zeolite, barium sulfate, calcined calcium sulfate, calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, bentonite, smectite, clay, mud, calcium carbonate, illite, talc, etc. From the viewpoint of reducing the dry feeling during application, the clay mineral is preferably kaolin or marine silt. Also, in the water-in-oil emulsion composition according to this embodiment, a commercially available product may be used as the clay mineral. Examples of the commercially available product include, but are not limited to, 2457 KAOLIN (manufactured by BRENNTAG SPECIALITIES) and Marine Silt FP (manufactured by Miyako Chemical Co., Ltd.). Furthermore, the clay mineral of component (A) can be used alone or in combination of two or more kinds.

[0019] In the water-in-oil emulsion composition according to this embodiment, the content of component (A) is 0.001 to 10% by mass based on the total composition of the water-in-oil emulsion composition. From the viewpoint of emulsion stability, the content of component (A) is preferably 0.1 to 5% by mass based on the total composition of the water-in-oil emulsion composition. If the content of component (A) is 0.001% by mass or more, the slipperiness can be sufficiently reduced when applying to the skin. Also, if the content of component (A) is 10% by mass or less, the suppression of the dry feeling and the moisturizing feeling can be sufficiently sustained.

[0020] Component (B) used in the water-in-oil type emulsion composition according to this embodiment is at least one low-viscosity silicone oil selected from linear dimethylpolysiloxane. By blending component (B), the skin after application of the emulsion cosmetic becomes moist and has a smooth and slippery feel. In this specification, "low viscosity" means that the kinematic viscosity at 25 °C is 1×10 -5 m 2 / s (10 cSt) or less.

[0021] Examples of at least one low-viscosity silicone oil selected from linear dimethylpolysiloxane include, but are not limited to, methylpolysiloxane, decamethylcyclopentasiloxane, highly polymerized methylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl·polyoxyalkylene copolymer-modified organopolysiloxane, alkyl-modified organopolysiloxane, dimethiconol, end-modified organopolysiloxane, fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, acrylic silicone, and other silicone compounds. From the viewpoint of ensuring non-stickiness and good slipperiness, the at least one low-viscosity silicone oil selected from linear dimethylpolysiloxane is preferably methylpolysiloxane or decamethylcyclopentasiloxane. Also, commercially available products may be used as the silicone oil. Examples of the commercially available products include, but are not limited to, KF-96A-6cs, KF-96A-10cs (Shin-Etsu Chemical Co., Ltd.). Such silicone oils can be used alone or in combination of two or more.

[0022] In the water-in-oil type emulsified composition according to this embodiment, the content of component (B) is 0.001 to 10% by mass based on the total composition of the water-in-oil type emulsified composition. From the viewpoint of emulsion stability, the content of component (B) is preferably 1 to 5% by mass based on the total composition of the water-in-oil type emulsified composition. If the content of component (B) is 0.001% by mass or more, the moist feeling can be sufficiently sustained. Further, if the content of component (B) is 10% by mass or less, the smooth feeling on the skin can be sufficiently reduced.

[0023] In the water-in-oil type emulsified composition according to this embodiment, the ratio of the content of component (B) to the content of component (A) ((B) / (A)) is 0.01 to 1.0. By setting the ratio within the above range, the moist feeling can be sustained without giving a dry feeling to the skin.

[0024] The water-in-oil type emulsified composition according to this embodiment may contain (C) an anti-inflammatory component. In the water-in-oil type emulsified composition according to this embodiment, the (C) anti-inflammatory component contributes to improving the roughness of the skin texture. The anti-inflammatory component is not particularly limited, and examples thereof include glycyrrhizic acid and its derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, guaiazulene, allantoin, indomethacin, zinc oxide, hydrocortisone acetate, prednisone, diphenhydramine hydrochloride, chlorpheniramine maleate; plant extracts such as peach leaf extract and mugwort leaf extract. From the viewpoints of emulsion stability and reduction of dry feeling, the anti-inflammatory component is preferably dipotassium glycyrrhizate and allantoin. The anti-inflammatory component of component (C) can be used alone, or two or more thereof can be mixed and used.

[0025] In the water-in-oil type emulsified composition according to this embodiment, the content of component (C) is preferably 0.001 to 5% by mass based on the total composition of the water-in-oil type emulsified composition. If the content of component (C) is 0.001% by mass or more, the roughness of the skin texture can be improved, and if it is 5% by mass or less, sufficient emulsion stability can be maintained while reducing the dry feeling.

[0026] The water-in-oil type emulsion composition according to this embodiment may further contain medicinal agents, moisturizing components, bactericides, preservatives, ultraviolet absorbers, antioxidants, organic and inorganic powders, pigments, etc., which are usually used in cosmetics, pharmaceuticals, etc., as required. Further, solid oil components and semi-solid oil components can be added as long as the effects of the present invention are not impaired.

[0027] (Cosmetics for wiping) The cosmetics for wiping according to this embodiment contain the above-described water-in-oil type emulsion composition.

[0028] The cosmetics for wiping according to this embodiment can reduce the slippery feeling when applied to the skin and can maintain a moist feeling without giving a dry feeling.

[0029] The present invention includes the following aspects. [1] (A) A clay mineral, (B) At least one low-viscosity silicone oil selected from linear dimethylpolysiloxane, and the content of component (A) is 0.001 to 10% by mass based on the total composition, the content of component (B) is 0.001 to 10% by mass based on the total composition, a water-in-oil type emulsion composition in which the ratio of the content of component (B) to the content of component (A) ((B) / (A)) is 0.01 to 1.0. [2] The water-in-oil type emulsion composition according to [1] above, further containing (C) an anti-inflammatory component. [3] The water-in-oil type emulsion composition according to [1] or [2] above, wherein component (A) is kaolin and / or marine silt. [4] Cosmetics for wiping containing the water-in-oil type emulsion composition according to any one of [1] to [3] above.

Examples

[0030] Next, the present invention will be described with reference to examples, and prior to that, the evaluation method will be shown. It should be noted that the present invention is not limited to these examples.

[0031] <Evaluation Test (Sensory Evaluation) of Absence of Slipperiness, Dryness, and Persistence of Moisture Feeling during Application> Twenty professional panelists were asked to use the emulsified cosmetics described in the examples and comparative examples, and they were evaluated based on the following criteria for "absence of slipperiness during application", "absence of dryness after application", and "persistence of moisture feeling".

[0032] (Evaluation Criteria) Absence of Slipperiness during Application 5 points: There was no slipperiness during application, and it was felt that it spread smoothly and uniformly enough. 4 points: There was no slipperiness during application, and it was felt that it spread smoothly and uniformly. 3 points: There was no slipperiness during application, and it was slightly felt that it spread smoothly and uniformly. 2 points: There was no slipperiness during application, and it was not felt that it spread smoothly and uniformly very much. 1 point: There was no slipperiness during application, and it was not felt that it spread smoothly and uniformly.

[0033] The average of all panelists was marked as ◎ if it was 4 points or more, ○ if it was 3 points or more, △ if it was 2 points or more, and × if it was less than 2 points.

[0034] (Evaluation Criteria) Absence of Dryness 5 points: The absence of squeakiness and dryness after application was felt sufficiently. 4 points: The absence of squeakiness and dryness after application was felt. 3 points: The absence of squeakiness and dryness after application was slightly felt. 2 points: The absence of squeakiness and dryness after application was not felt very much. 1 point: The absence of squeakiness and dryness after application was not felt.

[0035] The average of all panelists was marked as ◎ if it was 4 points or more, ○ if it was 3 points or more, △ if it was 2 points or more, and × if it was less than 2 points.

[0036] (Evaluation Criteria) Persistence of Moisture Feeling 5 points: The persistence of moisture feeling after application was felt sufficiently. 4 points: The moisturizing feeling after application could be felt. 3 points: The moisturizing feeling after application could be felt slightly. 2 points: The moisturizing feeling after application could hardly be felt. 1 point: The moisturizing feeling after application could not be felt.

[0037] For the average of all panels, those with 4 points or more were rated as ◎, 3 points or more as ○, 2 points or more as △, and less than 2 points as ×.

[0038] <Evaluation test for improving the texture of the skin> For 5 evaluation panelists, a test on the effect of improving the texture was carried out using the face (part: cheek). A combined test was conducted for 4 weeks, applying an appropriate amount of the skin cosmetic of the present invention to one cheek (either left or right) and pure water to the other cheek twice a day. The texture state of the same part of the cheek before and after the combined use was observed with a microscope (manufactured by KEYENCE CORPORATION, VHX-1000), and the changes in the depth, size, and isotropy of the texture were measured visually. The evaluation of the effect of improving the texture was scored on a 5-point scale for each of the two items of "width of the skin groove" and "height of the unevenness of the skin groove / skin ridge" as shown below. Furthermore, the total value of the scores for the two items was calculated using the following formula and evaluated based on the following evaluation criteria. The results are shown in a table. Effect of improving the texture (points) = ((Evaluation reference points for the width of the skin) + (Evaluation reference for the height of the unevenness of the skin groove / skin ridge)) ÷ 2

[0039] <Evaluation criteria for the width of the skin groove> 5 points... The width of the skin groove became narrower. 4 points... The width of the skin groove became slightly narrower. 3 points... No change was observed in the width of the skin groove. 2 points... The width of the skin groove became slightly wider. 1 point... The width of the skin groove became wider.

[0040] <Evaluation criteria for the height of the unevenness of the skin groove / skin ridge> 5 points... The unevenness of the skin groove / skin ridge became shallower and the whole became smoother. 4 points... The unevenness of the skin groove / skin ridge became slightly shallower and the whole became smoother. 3 points... Almost no change was observed in the unevenness of the skin groove / skin ridge. 2 points... The unevenness of the skin grooves / skin mounds is slightly deep, and unevenness is generally recognized. 1 point... The unevenness of the skin grooves / skin mounds is deep, and distinct unevenness is generally recognized.

[0041] The average for all panels was defined as ◎ for 4 points or more, ○ for 3 points or more, △ for 2 points or more, and × for less than 2 points.

[0042] <Examples 1 to 6 and Comparative Examples 1 to 4> Oil-in-water emulsion compositions in each formulation of Examples 1 to 6 and Comparative Examples 1 to 4 shown in Table 1 were prepared by a conventional method and evaluated by the above method. The results are shown in Table 1.

[0043]

Table 1

[0044] As is clear from Table 1, the compositions of Examples 1 to 6 all exhibited excellent performance. On the other hand, in Comparative Examples 1 to 4, any one of the lack of a smooth feeling during application, lack of a dry feeling, persistence of a moist feeling, and improvement of the disruption of skin texture was inferior, and the object of the present invention could not be achieved.

[0045] Hereinafter, other formulation examples of the emulsified cosmetic of the present invention are given as examples. When these examples were also examined for each of the above items, all of the examples had excellent characteristics and were good.

[0046] Example 7 (Cream) (mass%) (1) Mineral oil 20.0 (2) Behenyl alcohol 2.0 (3) Stearic acid 1.5 (4) Castor oil 1.0 (5) Cholesterol 0.2 (6) Dimethicone 0.2 (7) Glyceryl stearate 1.5 (8) Sodium stearoyl glutamate 1.2 (9) Sorbitan isostearate 0.5 (10) Kaolin 1.0 (11) Glycerin 15.0 (12) Sorbitol 2.0 (13) DPG 5.0 (14) Carbomer 0.12 (15) Allantoin 0.01 (16) Dipotassium glycyrrhizinate 0.01 (17) Alpinia speciosa extract 0.1 (18) Red algae extract 0.1 (19) Brown algae extract 0.1 (20) Brown algae extract 0.1 (21) Green algae extract 0.1 (22) Prunus sargentii extract 0.1 (23) Purified water remainder

[0047] (Manufacturing method) (1) to (6) were heated, mixed, and dissolved, and (7) to (23) that had been previously heated, mixed, and dissolved were added thereto. After mixing and emulsifying, it was cooled to prepare a body cream.

Claims

1. An oil-in-water type emulsion composition comprising: (A) a clay mineral; and (B) at least one low-viscosity silicone oil selected from linear dimethylpolysiloxane, wherein the content of component (A) is 0.001 to 10% by mass based on the total composition, the content of component (B) is 0.001 to 10% by mass based on the total composition, and the ratio ((B) / (A)) of the content of component (B) to the content of component (A) is 0.01 to 1.

0.

2. The oil-in-water type emulsion composition according to Claim 1, further comprising (C) an anti-inflammatory component.

3. The oil-in-water type emulsion composition according to Claim 1 or 2, wherein component (A) is kaolin and / or marine silt.

4. A wiping cosmetic comprising the oil-in-water type emulsion composition according to Claim 1 or 2.

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