JP6550293B2 - Oil-in-water emulsion cosmetic - Google Patents

Description

  The present invention relates to an oil-in-water emulsion cosmetic.

Since the oil-in-water emulsion cosmetic has a fresh and fresh feeling of use, it is used in cosmetics such as emulsions, creams and emulsion foundations. However, depending on the components to be blended, there may be a problem in the stability, and various studies have been made.
For example, in Patent Document 1, an oil-in-water emulsion composition containing 50% by mass or more of silicone oil in an oil phase and containing a polyoxyalkylene-modified polysiloxane as a dispersant for hydrophobized powder is favorably used. It is described that the dispersion stability of the powder is excellent as well as the feeling.
Further, in Patent Document 2, an oil-in-water emulsion cosmetic containing polyoxyethylene (20) sorbitan monostearate, higher alcohol, water, polysaccharide-based water-soluble polymer, and an acidic substance has a low viscosity and is stable over time. It is described that it is excellent in the nature.
Further, in Patent Document 3, the oil-in-water type emulsified cosmetic containing triethoxycaprylylsilane-coated metal oxide, xanthan gum and carrageenan, polyoxyethylene (80 to 100) hydrogenated castor oil changes at high temperature or with time. It is described that less, smooth, fresh and fresh feeling of use can be obtained.

JP 2004-210698 A JP 2008-247866 A JP, 2011-190232, A

  Since the present invention adheres to the inner wall of the container and remains when the oil-in-water emulsified cosmetic is filled in a transparent or translucent container, the appearance of the container becomes poor when viewed from the outside. Furthermore, it has been found that if the content liquid remains attached to the inner wall, there is a problem that the remaining amount of internal volume is misunderstood or the end can not be used completely. In addition, they also found that there is a problem that makeup is not finished cleanly.

  The present inventor uses (C) dimethiconol and (D) sugar alcohol in combination at a specific mass ratio to an oil-in-water type emulsified cosmetic comprising (A) a color pigment and (B) a polysaccharide water-soluble polymer. As a result, the cosmetic is less likely to adhere to the inner wall of the container, the appearance is beautiful, and the spread at the start of application is excellent, and the stickiness of the skin when applied to the skin or the finished skin is suppressed. It has been found that it achieves a fresh feel and provides a smooth finish.

The present invention provides the following components (A), (B), (C) and (D):
(A) 0.1 to 30% by mass of color pigment,
(B) 0.01 to 10% by mass of water-soluble polysaccharides,
(C) dimethiconol 0.05 to 20% by mass,
(D) Sugar alcohol 0.1 to 20% by mass
And the mass ratio (C) / (B) of the component (C) to the component (B) is 0.2 to 15.

  The oil-in-water emulsion cosmetic of the present invention is hard to adhere to the inner wall of the container when filled in a container, so the appearance is beautiful and is excellent in spread at the start of application, and it is slippery or finished when applied to the skin The stickiness of the touch of the skin is suppressed, the fresh feeling is realized, and the finish without unevenness is obtained.

  The coloring pigment of the component (A) used in the present invention is used in ordinary cosmetics and, for example, titanium oxide, zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, bengara, bitumen, ultramarine blue , Metal oxides such as chromium oxide and chromium hydroxide, metal complexes such as manganese violet and cobalt titanate, and inorganic pigments such as carbon black; red 3, red 104, red 106, red 201, red 202 , Red 204, Red 205, Red 220, Red 226, Red 227, Red 228, Red 230, Red 401, Red 405, Red 505, Red 203, Orange 203, Orange 204, Synthetic organic pigments such as Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, Blue No. 404, etc .; Natural substances such as β-carotene, caramel and paprika dyes Machine dyes and the like, conjugates of these coloring pigments, composite pigments that combine with these coloring pigments and pearl pigments. Examples of pearl pigments to be treated include mica, phlogopite, talc, silica, sericite, mica, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, plate-like alumina powder, etc. Natural or synthetic inorganic powders may be mentioned. Specific examples of the composite pigment include titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, iron oxide coated synthetic phlogopite, chromium oxide coated mica titanium, titanium oxide coated glass powder, iron oxide coated glass powder, oxidized metal powder Examples thereof include titanium-containing glass powder, iron oxide-containing glass powder and the like.

Although the color pigment of component (A) can be used as it is, it can also be used after hydrophobization treatment and hydrophilization treatment.
The hydrophobization treatment includes, for example, fluorine compound treatment, silicone treatment, alkyl treatment, alkylsilane treatment, metal soap treatment, water-soluble polymer treatment, amino acid treatment, N-acyl amino acid treatment, lecithin treatment, organic titanate treatment, polyol treatment And surface treatments such as acrylic resin treatment, methacrylic resin treatment, and urethane resin treatment.
As a hydrophilic process, what was coat | covered with hydrophilic resin and an inorganic silicic acid type compound is mentioned, for example.
These processes can be performed by a usual method.

  The component (A) can be used alone or in combination of two or more, and the content is 0.1% by mass or more in the whole composition, from the viewpoint of giving a natural finish while maintaining the covering power. 0.5 mass% or more is preferable, 1 mass% or more is more preferable, 30 mass% or less, 20 mass% or less is preferable, and 16 mass% or less is more preferable. Moreover, content of a component (A) is 0.1-30 mass% in whole composition, 0.5-20 mass% is preferable, and 1-16 mass% is more preferable.

The component (B) used in the present invention is a water-soluble polysaccharide, and a thickening water-soluble natural polymer can be suitably used. The water-soluble polysaccharides are those commonly used in cosmetics, and examples include locust bean gum, cod gum, guar gum, galactomannan such as fenugreek gum and cassia gum, carrageenan, galactan, quince seed, gum arabic, tragacanth gum, pectin Plant-based water-soluble polysaccharides such as mannan and starch; microbial polysaccharides such as xanthan gum, dextran, succinoglucan, curdlan and gellan gum; and others, arabinogalactan, tamarind gum and the like.
Among these, locust bean gum, xanthan gum and gellan gum are preferable from the viewpoint of imparting an appropriate viscosity to the system of the oil-in-water emulsion cosmetic, and being excellent in fresh feeling of use, and xanthan gum is more preferable.

  The component (B) can be used alone or in combination of two or more, and from the viewpoint of giving an appropriate viscosity to the oil-in-water emulsion cosmetic system, the content is 0.01% by mass or more in the whole composition. 0.02 mass% or more is preferable, 0.04 mass% or more is more preferable, 0.05 mass% or more is more preferable, 10 mass% or less, 8 mass% or less is preferable, 5 mass% or less Is more preferable, and 2% by mass or less is more preferable. Moreover, content of component (B) is 0.01-10 mass% in the whole composition, 0.02-8 mass% is preferable, 0.04-5 mass% is more preferable, 0.05-0.05 mass%. 2 mass% is more preferable.

The dimethiconol of the component (C) used in the present invention is a compound having a structure in which both ends or one end of dimethylsiloxane is modified with a hydroxyl group and has a liquid to solid appearance depending on the chain length of dimethylsiloxane. . Dimethiconol having a degree of polymerization of about 10,000 to 1,000,000 is preferable, and the chain length of dimethylsiloxane of such dimethiconol is preferably about 10,000 to 100,000. In addition, its properties may be any of liquid, gum, paste, solid and the like at 25 ° C.
Further, dimethiconol is preferably a solution or dispersion diluted with a solvent from the viewpoint of compoundability, and may be commercially available in the state of being previously dissolved in silicone oil. As this commercial item, DC1503, DC1501 (above, Toray Ukoning Co., Ltd. make) etc. are mentioned.
Examples of silicone oils used herein include linear polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane and methylhydrogenpolysiloxane; decamethylpolysiloxane, dodecamethylpolysiloxane, tetramethyltetrahydrogenpolysiloxane and the like Cyclic polysiloxane etc. are mentioned.

  The component (C) can be used alone or in combination of two or more, and is excellent in spreadability, and the content is 0.05% by mass or more in the whole composition from the viewpoint of uniformly spreading the color pigment on the skin 0.07 mass% or more is preferable, 0.1 mass% or more is more preferable, 0.3 mass% or more is further more preferable, 20 mass% or less, 10 mass% or less is preferable, 2 mass% The following are more preferable. Moreover, content of a component (C) is 0.05-20 mass% in whole composition, 0.07-10 mass% is preferable, 0.1-2 mass% is more preferable, 0.3- Even more preferred is 2% by mass.

  In the present invention, the mass ratio (C) / (B) of the component (C) to the component (B) hardly adheres to the inner wall of the container when filled in the container, so the appearance is beautiful and spreads at the start of application. In addition to being excellent, it is 0.2 or more, preferably 0.4 or more, from the viewpoint of being able to suppress the stickiness when applied to the skin and the finish of the finished skin and to obtain a fresh feel and a finish without unevenness. 0.6 or more is more preferable, 15 or less is preferable, 14 or less is preferable, and 13 or less is more preferable. Moreover, mass ratio (C) / (B) of the component (C) with respect to a component (B) is 0.2-15, 0.4-14 are preferable and 0.6-13 are more preferable.

  The sugar alcohol of the component (D) is one used in ordinary cosmetics and is preferably a sugar alcohol having a carbon number of 4 to 12, and examples thereof include maltitol, mannitol, sorbitol, xylitol and erythritol. Among them, maltitol and sorbitol are preferable, and sorbitol is more preferable, from the viewpoints of suppressing stickiness after application and obtaining a fresh feeling.

  The component (D) can be used alone or in combination of two or more, and the content is 0.1% by mass or more in the whole composition, from the viewpoint of suppressing stickiness after application and obtaining a fresh feeling. .2 mass% or more is preferable, 0.3 mass% or more is more preferable, 0.5 mass% or more is more preferable, 20 mass% or less, 12 mass% or less is preferable, and 6 mass% or less is more preferable. Moreover, content of component (D) is 0.1-20 mass% in the whole composition, 0.2-12 mass% is preferable, 0.3-6 mass% is more preferable, 0.5-0.5 mass%. 6 mass% is more preferable.

  In the present invention, the mass ratio (C) / (D) of the component (C) to the component (D) hardly adheres to the inner wall of the container when filled in the container, so the appearance is beautiful and spreads at the start of application. In addition to being excellent, it is preferably 0.02 or more, more preferably 0.05 or more, from the viewpoints of being able to suppress the stickiness when applied to the skin and the finish of the finished skin, and to obtain a fresh feeling and a smooth finish. Preferably, 0.1 or more is more preferable, 2.5 or less is preferable, 2 or less is more preferable, and 1.8 or less is more preferable. Moreover, 0.02-2.5 are preferable, as for mass ratio (C) / (D) of the component (C) with respect to a component (D), 0.05-2 are more preferable, and 0.1-1.8 are More preferable.

The oil-in-water emulsion cosmetic of the present invention can further contain a higher alcohol, and can improve the feeling in use and stability.
As such a higher alcohol, one used in ordinary cosmetics is preferably a higher alcohol having 14 to 22 carbon atoms, and is preferably a linear saturated alcohol, a saturated alcohol having a side chain, a linear unsaturated alcohol, a side chain It is unsaturated alcohol which it has. More specifically, myristyl alcohol, cetyl alcohol, cetostearyl alcohol, stearyl alcohol, 2-octyldodecanol, arachidyl alcohol, behenyl alcohol and the like can be mentioned, and cetyl alcohol, cetostearyl alcohol, stearyl alcohol, 2-octyldodecanol Is more preferred.

  One or two or more higher alcohols can be used, and the content is preferably 0.1% by mass or more, more preferably 1% by mass or more, and preferably 20% by mass or less in the total composition. % Or less is more preferable. Moreover, 0.1-20 mass% is preferable in a whole composition, and, as for content of a higher alcohol, 1-8 mass% is more preferable.

The oil-in-water emulsion cosmetic of the present invention can contain an oil agent other than the higher alcohol. As this oil agent, it is used for a normal cosmetics, and what is liquid at 25 degreeC is preferable.
For example, vegetable oils such as jojoba oil and olive oil; animal oils such as liquid lanolin; linear or branched hydrocarbon oils such as liquid paraffin, light isoparaffin, squalane and squalene; neopentyl glycol dicaprate, isopropyl palmitate, paramethoxysilicone Fatty acid esters such as 2-ethylhexyl skin acid, cetyl 2-ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, diisopropyl sebacate, glyceryl tri 2-ethylhexanoate, pentaerythrityl tetra 2-ethylhexanoate, succinic acid Polyhydric alcohol fatty acid ester such as diethyl hexyl ester oil such as alkyl benzoate having 12 to 15 carbon atoms; dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methyl Silicone oils such as hydrogen polysiloxane; fluoropolyether, fluorine oils such as perfluoroalkyl ether silicone.

  These oils can be used alone or in combination of two or more, and from the viewpoint of excellent feeling in use, the content is preferably 1% by mass or more, more preferably 4% by mass or more, and 40% by mass in the entire composition. The following is preferable, and 30 mass% or less is more preferable. Moreover, 1-40 mass% is preferable in a whole composition, and, as for content of these oil agents, 4-30 mass% is more preferable.

  In the present invention, the content of water is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 40% by mass or more, from the viewpoint of excellent feeling in use and storage stability. % Or less is preferable, 80 mass% or less is more preferable, and 70 mass% or less is more preferable. Moreover, 10-85 mass% is preferable in a whole composition, as for content of water, 20-80 mass% is more preferable, and 40-70 mass% is more preferable.

  The oil-in-water emulsion cosmetic of the present invention is a component other than the above-described components, to the extent that the effects of the present invention are not impaired, such as components used for ordinary cosmetics, such as oil components other than the above, powders other than the above, interface Contains active agent, polyhydric alcohol, preservative, antioxidant, pigment, pH adjuster, fragrance, UV absorber, moisturizer, blood circulation promoter, cooling agent, antiperspirant, bactericide, skin activator, etc. can do.

The oil-in-water emulsion cosmetic of the present invention can be produced by a conventional method, and can be formulated into a cream, gel, emulsion, aerosol, and the like.
The oil-in-water emulsion cosmetic of the present invention is a makeup base, foundation, concealer, blusher, eyeshadow, mascara, eyeliner, eyebrow, overcoat agent, lipstick, and other makeup cosmetic; It can be applied as an ultraviolet protective cosmetic such as a stop cream. Among them, it is suitable as an oil-in-water emulsion makeup cosmetic.
The oil-in-water emulsion cosmetic of the present invention can be used not only for single use, but also for layering of powder cosmetics such as liquid foundation, powder foundation and white powder.
With regard to the embodiments described above, the present invention further discloses the following composition.

<1> The following components (A), (B), (C) and (D):
(A) 0.1 to 30% by mass of color pigment,
(B) 0.01 to 10% by mass of water-soluble polysaccharides,
(C) dimethiconol 0.05 to 20% by mass,
(D) Sugar alcohol 0.1 to 20% by mass
The oil-in-water type emulsion cosmetic which contains the mass ratio (C) / (B) of component (C) to component (B) is 0.2-15.

The content of the <2> component (A) is preferably 0.5% by mass or more, more preferably 1% by mass or more, preferably 20% by mass or less, and 16% by mass or less in the entire composition. The oil-in-water type emulsion cosmetic according to the above <1>.
The oil-in-water type emulsified cosmetic according to <1> or <2>, wherein the component (B) is preferably locust bean gum, xanthan gum or gellan gum, and more preferably xanthan gum.
The content of the component (B) is preferably 0.02% by mass or more, more preferably 0.04% by mass or more, and still more preferably 0.05% by mass or more in the entire composition. The oil-in-water type emulsified cosmetic according to any one of the above <1> to <3>, wherein the mass% or less is preferable, 5 mass% or less is more preferable, and 2 mass% or less is more preferable.

The content of the <5> component (C) is preferably 0.07% by mass or more, more preferably 0.1% by mass or more, and still more preferably 0.3% by mass or more in the entire composition. The oil-in-water type emulsified cosmetic according to any one of the above <1> to <4>, wherein 10% by mass or less is preferable and 2% by mass or less is more preferable.
The mass ratio (C) / (B) of component (C) to component (B) is preferably 0.4 or more, more preferably 0.6 or more, and preferably 14 or less, 13 or less The oil-in-water type emulsified cosmetic according to any one of the above <1> to <5>.
The <7> component (D) is preferably maltitol, mannitol, sorbitol, xylitol, erythritol, more preferably maltitol or sorbitol, further preferably sorbitol in any one of the above <1> to <6>. The oil-in-water emulsion cosmetic described above.

The content of the <8> component (D) is preferably 0.2% by mass or more, more preferably 0.3% by mass or more, and further preferably 0.5% by mass or more in the entire composition. The oil-in-water type emulsified cosmetic according to any one of the above <1> to <7>, in which the mass% or less is preferable, and the 6 mass% or less is more preferable.
The mass ratio (C) / (D) of component (C) to component (D) is preferably 0.02 or more, more preferably 0.05 or more, and still more preferably 0.1 or more. 2.5 or less is preferable, 2 or less is more preferable, and 1.8 or less is more preferable The oil-in-water type emulsion cosmetic according to any one of the above <1> to <8>.

<10> Furthermore, the oil-in-water type emulsion cosmetic according to any one of the above <1> to <9>, which can contain a higher alcohol.
The <11> higher alcohol is preferably a higher alcohol having a carbon number of 14 to 22, and myristyl alcohol, cetyl alcohol, cetostearyl alcohol, stearyl alcohol, 2-octyldodecanol, arachidyl alcohol and behenyl alcohol are more preferable. The oil-in-water emulsified cosmetic according to the above <10>, wherein cetyl alcohol, cetostearyl alcohol, stearyl alcohol, and 2-octyldodecanol are more preferable.
The content of the <12> higher alcohol is preferably 0.1% by mass or more, more preferably 1% by mass or more, preferably 20% by mass or less, and more preferably 8% by mass or less in the entire composition. The oil-in-water type emulsion cosmetic according to <10> or <11>.

<13> The oil-in-water type emulsion cosmetic according to any one of <1> to <12>, which can further contain an oil agent other than a higher alcohol.
The content of oil agents other than the <14> higher alcohol is preferably 1% by mass or more, more preferably 4% by mass or more, preferably 40% by mass or less, and more preferably 30% by mass or less in the entire composition. The oil-in-water type emulsified cosmetic according to <13>.
The content of <15> water is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 40% by mass or more, and preferably 85% by mass or less in the entire composition. The oil-in-water type emulsified cosmetic according to any one of the above <1> to <14>, wherein the following is more preferable, and 70 mass% or less is more preferable.
The oil-in-water type emulsion cosmetic any one of said <1>-<15> which is <16> oil-in-water type emulsion makeup cosmetics.

Examples 1-11, comparative examples 1-3
The oil-in-water emulsion makeup cosmetic composition shown in Table 1 is produced, and adhesion to the inner wall of the container, spreadability in the initial stage of application, no stickiness during application, no stickiness immediately after application, immediately after application Fresh texture, no unevenness immediately after application, uniform finish were evaluated according to the following criteria. The integrated value of 10 persons' results was obtained. The results are shown in Table 1 together.

(Production method)
The oil phase was heated to 80 ° C., and the powder phase obtained by pulverizing and mixing the powder raw materials was added and mixed using a homomixer. Thereafter, the aqueous phase was heated to 80 ° C., dispersed, and then cooled to room temperature to obtain an oil-in-water emulsified makeup cosmetic.

(Evaluation method)
(1) Adhesion to the inner wall of the container:
10 panelists fill half volume of each oil-in-water emulsified makeup cosmetic in a 50 mL clear glass container, cover it, repeat erecting and inverting 5 times, mix, and stand for 10 minutes The expert paneler evaluated the state in which the content liquid adhered to the inner wall according to the following criteria. The result is shown by the integrated value of 10 persons.
5; not attached
4; hardly attached
3; slightly attached
2;
1; considerably attached.

(2) Evaluation at the time of application and after application:
Ten specialist panelists apply each oil-in-water emulsion makeup makeup to the face with a finger, and the "spreadability" of the application initial stage, the "slipperiness" during application, and the "slipperiness" immediately after the application , "Watery feeling", "no unevenness", and "uniform finish" were evaluated according to the following criteria. The result is shown by the integrated value of 10 persons.

(2-1) Spreadability of initial application:
5; very easy to spread.
4; easy to spread.
3; a little easy to spread.
2; not easy to spread.
1; not easy to spread

(2-2) No sliminess during coating:
5; not slim
4; not too slim
3; somewhat slimy.
2;
1; quite slimy.

(2-3) No stickiness immediately after application:
5; not sticky.
4; not very sticky.
3; somewhat sticky
2; Sticky.
1; quite sticky.

(2-4) Fresh feeling immediately after application:
5; very fresh.
4; Fresh.
3; somewhat fresh.
2; not so fresh.
1; not watery.

(2-5) No unevenness after application:
5: There is no unevenness in the finish.
4: There is not much unevenness in the finish.
3: The finish has some unevenness.
2; There is unevenness in the finish.
1; There is considerable unevenness in the finish.

(2-6) uniform finish:
5; The entire skin is finished fairly uniformly.
4; The whole skin is finished uniformly.
3; The whole skin is finished somewhat uniformly.
2; The whole skin is not finished very uniformly.
1; The whole skin is not finished uniformly.

Example 12
In the same manner as in Examples 1 to 11, an oil-in-water type emulsified make-up cosmetic having a composition shown in Table 2 was produced.

Example 13
In the same manner as in Examples 1 to 11, an oil-in-water emulsion foundation having a composition shown in Table 3 was produced.

Example 14
In the same manner as in Examples 1 to 11, an oil-in-water type emulsified eye shadow having the composition shown in Table 4 was produced.

Example 15
In the same manner as in Examples 1 to 11, an oil-in-water emulsified mascara having the composition shown in Table 5 was produced.

  All of the oil-in-water emulsion cosmetic preparations obtained in Examples 12 to 15 are less likely to adhere to the inner wall of the container when filled in the container, and are excellent in spread at the start of application and when applied to the skin. It was possible to suppress the stickiness of the feel of the finished skin, to achieve a fresh feel, and to obtain a finish without unevenness.

Claims (5)

The following components (A), (B), (C) and (D):
(A) 0.1 to 30% by mass of color pigment,
(B) 0.01 to 10% by mass of water-soluble polysaccharides,
(C) dimethiconol 0.05 to 20% by mass,
(D) Sugar alcohol 0.1 to 20% by mass
The oil-in-water type emulsion cosmetic which contains the mass ratio (C) / (B) of component (C) to component (B) is 0.2-15.   The oil-in-water emulsified cosmetic according to claim 1, wherein the component (B) is one or more selected from locust bean gum, xanthan gum and gellan gum.   The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein the component (D) is one or more selected from maltitol, mannitol, sorbitol, xylitol and erythritol.   The oil-in-water type emulsified cosmetic according to any one of claims 1 to 3, wherein the mass ratio (C) / (D) of the component (C) to the component (D) is 0.02 to 2.5.   The oil-in-water emulsified cosmetic according to any one of claims 1 to 4, which is an oil-in-water emulsified makeup cosmetic.