JPH11228346A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic that has excellent retainability of the prophylaxis and improvement of acne and shows good sense of application by using sulfur, a specific composition and/or oil-gelling agent, a water-soluble polymer and water. SOLUTION: This cosmetic comprises (A) 0.1-15 wt.% of sulfur, (B) (i) 0.05-15 wt.% of silicone gel composition and/or (ii) 1-40 wt.% of an oil-gelling agent, (C) 0.01-10 wt.% of a water-soluble polymer, (D) 40-95 wt.% of water and (E) when necessary, a powder or the like. In a preferred embodiment, the component (i) comprises a silicone polymer having three-dimensionally crosslinked structure that is insoluble in benzene, can include benzene in an amount more than the self weight of the silicone gel and contains R2 SiO units and RSiO1.5 units (R is H, an alkyl, an aryl or the like) at a weight ratio of (1-30)/1 and a silicone oil having a low viscosity of <=50 cs at a weight ration of 5/95-30/70.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cosmetics, and more particularly to cosmetics, which have the effect of preventing or improving acne, have excellent water resistance and long-lasting effects, have no stickiness or sliminess, and have a feeling of use. Related to good cosmetics.

[0002]

2. Description of the Related Art Conventionally, cosmetics containing sulfur as an active ingredient for preventing or treating acne have been commercially available. For example, aqueous cosmetics having a two-layered form, emulsified cosmetics incorporated in emulsions and creams, and oil-based cosmetics incorporated in an oil base have been known.

[0003]

However, water-based cosmetics and emulsified cosmetics containing sulfur have poor water resistance, tend to run off with sweat or water after application, and have insufficient sustained effects. On the other hand, oil-based cosmetics are more resistant to sweat and water, etc., than water-based cosmetics, but have the disadvantage that they have stickiness, sliminess, and a feeling of blockage depending on the oil base compounded. Therefore, there has been a demand for the development of a cosmetic composition which is excellent in water resistance and sustainability of acne prevention effect and has a good feeling in use.

[0004]

Means for Solving the Problems In view of the above circumstances, the present inventors have conducted intensive studies and have found that a cosmetic containing sulfur, a silicone gel composition and / or an oil gelling agent, a water-soluble polymer and water, The present inventors have found that the present invention is excellent in durability of water resistance, acne prevention and improvement effects, and has a good feeling in use, and has completed the present invention.

That is, the present invention provides the following components (A) to
(D) A cosmetic comprising (A) sulfur (B) a silicone gel composition and / or an oil gelling agent (C) a water-soluble polymer (D) water. The details will be described below.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The sulfur of the component (A) used in the present invention is a pale yellow fine amorphous or crystalline powder, which is used for the prevention and treatment of acne. In the cosmetic of the present invention, even if added and dispersed as it is,
Alternatively, they may be blended after being subjected to a dispersion treatment using a dispersant in advance. The amount of the component (A) in the present invention is not particularly limited, but is preferably 0.1 to 15% (hereinafter simply referred to as "%"), and more preferably 0.1 to 5%.

[0007] Component (B) is a silicone gel composition and / or an oil gelling agent. The silicone gel composition of the component (B) is an organopolysiloxane polymer having a three-dimensional crosslinked structure which is insoluble in benzene but can contain benzene in the same weight or more as its own weight. Can be suitably used. this is,
A silicone polymer having a three-dimensional cross-linking structure that is insoluble in benzene but can contain benzene in the same weight or more as its own weight, and a low-viscosity silicone oil.The low-viscosity silicone oil is mixed with the silicone polymer structure. ing.

A silicone polymer having a three-dimensional crosslinked structure which is insoluble in benzene and may contain benzene in an amount equal to or greater than its own weight is a polymer obtained by crosslinking an organopolysiloxane, and partially includes a three-dimensional crosslinked structure. It has the structure, R ₂
Made of SiO units and RSiO _1.5 units, R ₃ SiO
_It may contain _0.5 units and / or SiO ₂ units. However, R of each structural unit described above is a hydrogen atom, a methyl group,
Examples thereof include an alkyl group such as an ethyl group and a propyl group, an aryl group such as a phenyl group and a tolyl group, and an aliphatic unsaturated group such as a vinyl group. The same or different groups may be used.
In such a silicone polymer, R ₂ SiO units and RS
When the ratio of _1.5 units of iO is 1 to 30: 1, the mixture swells sufficiently and becomes excellent in stability when mixed with a low-viscosity silicone oil described below, which is preferable.

On the other hand, the low-viscosity silicone oil is not particularly limited, but can be suitably used as long as it has a viscosity of about 50 cs or less. This is because, as the viscosity becomes higher, a large amount of the viscosity results in a tactile oily feeling, which is unfavorable in terms of usability.
Examples of low-viscosity silicone oils include low-polymerization degree chain dimethylpolysiloxane, methylphenylpolysiloxane, cyclic octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and the like. More than one kind can be appropriately selected and used.

The silicone gel composition of the present invention can be easily prepared by sufficiently kneading and swelling the above-mentioned silicone polymer and low-viscosity silicone oil. In this case, the mixing ratio of the silicone polymer to the low-viscosity silicone oil is preferably 5:95 to 30:
70, more preferably 10:90 to 25:75.

As a commercially available product, a product obtained by blending a silicone oil with a silicone gel composition, for example, KSG-
15, KSG-16, KSG-17, and KSG-18 (all manufactured by Shin-Etsu Chemical Co., Ltd.) and the like.

The content of the silicone gel composition in the cosmetic of the present invention is not particularly limited, but is preferably 0.0
It is 5 to 15%, more preferably 0.25 to 10%.
When used in this range, both stability and usability are improved.

On the other hand, as the oil gelling agent of the component (B),
For example, aluminum stearate, metal soaps such as magnesium stearate, sucrose palmitate,
Polysaccharide fatty acid esters such as starch palmitate and Bacmond ostearate; organically modified clay minerals such as monoalkyltrimethylammonium salt-modified montmorillonite and dialkyldimethylammonium salt-modified montmorillonite; hydrophobic silica such as alkyl-modified silicic anhydride One or two or more of these can be appropriately selected and used according to the purpose. Among these, polysaccharide fatty acid esters, organically modified clay minerals,
One or more selected from hydrophobic silicic anhydrides are preferred. The content of the oil gelling agent is not particularly limited, but is preferably 1 to 40%, more preferably 5 to 30%.
When used in this range, both stability and usability are improved.

[0014] Component (C) is a water-soluble polymer. Examples of the water-soluble polymer include carboxyvinyl polymer, methylcellulose, ethylcellulose, carboxymethylcellulose, carboxyethylcellulose, xanthan gum, carrageenan, polyvinyl alcohol, water-soluble bentonite, quince seed, alginate, and the like. The above can be appropriately selected and blended. Among these, one or more selected from carboxyvinyl polymers, methylcellulose, carboxymethylcellulose, xanthan gum, carrageenan, and alginates are preferable. Component (C)
Is not particularly limited, but is preferably 0.01 to
It is 10%, more preferably 0.05 to 5%. When used in this range, the stability and the feeling of use such as spread to the skin become better.

The amount of the component (D) water is preferably 4
It is 0 to 95%, more preferably 50 to 80%.

In the cosmetic of the present invention, in addition to the above essential components, by further blending a powder as the component (E), the sticky and slimy feeling can be reduced, and a dry feeling can be imparted. As the component (E) used in the present invention, as long as it is used in ordinary cosmetics, its shape (spherical, needle-like, plate-like, etc.) and particle size (fog-like, fine particles, pigment grade, etc.) Any particles can be used regardless of the particle structure (porous, non-porous, etc.). For example, as inorganic powder, titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate , Calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, synthetic mica, mica, kaolin, sericite, muscovite, phlogopite, phlogopite,
Biotite, Lithium mica, Silicic acid, Silicic anhydride, Aluminum silicate, Magnesium silicate, Aluminum magnesium silicate, Calcium silicate, Barium silicate, Strontium silicate, Metal tungstate, Hydroxyapatite, Vermiculite, Heidilite , Bentonite, montmorillonite, hectorite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride, etc .; organic powders include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, and polystyrene powder. , Polyurethane, benzoguanamine powder, polymethylbenzoguanamine powder, tetrafluoroethylene powder, polymethyl methacrylate powderー, cellulose, silk powder, nylon powder, 12 nylon, 6 nylon, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol resin, fluororesin, silicon resin, acrylic resin, Melamine resin, epoxy resin, polycarbonate resin, microcrystalline fiber powder, rice starch, lauroyl lysine, etc .; Surfactant metal salt powder (metal soap) includes zinc stearate, aluminum stearate, calcium stearate, magnesium stearate , Zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium zinc cetyl phosphate, etc .; as colored pigments, inorganic red pigments such as iron oxide, iron hydroxide, iron titanate, etc .; Brown pigment, yellow iron oxide,
Inorganic yellow pigments such as ocher, black iron oxide, inorganic black pigments such as carbon black, inorganic purple pigments such as mango violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide, cobalt titanate, Inorganic blue pigments such as navy blue and ultramarine blue, lakes of tar pigments, lakes of natural pigments, composite powders of these powders, etc .; pearl pigments are titanium oxide-coated mica , Bismuth oxychloride, titanium oxide coated bismuth oxychloride, titanium oxide coated talc,
Fish scale foil, titanium oxide-coated colored mica, etc .; as metal powder pigments, aluminum powder, copper powder, stainless steel powder, etc .; as tar pigments, Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202
No., Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230
No., Red No. 401, Red No. 505, Yellow No. 4, Yellow No. 5
No. Yellow No. 202, Yellow No. 203, Yellow No. 204, Yellow No. 401, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 4
04, Green 3, Green 201, Green 204, Green 205, Orange 201, Orange 203, Orange 204
No. 206, orange No. 207, etc .; natural pigments are powders selected from carminic acid, laccaic acid, calsamine, bradyline, crocin, etc., and these powders are compounded, and oils, silicones, or fluorine are used. Powders that have been surface-treated with a compound may be used, and one or more of them may be appropriately selected and used as needed. Among them, one or two kinds selected from titanium oxide, barium oxide, talc, synthetic mica, mica, kaolin, sericite, silicic acid, polyethylene powder, polypropylene powder, polystyrene powder, nylon powder, 12 nylon, and 6 nylon The above is preferable, and talc, silicic anhydride, and nylon powder are particularly preferable.

The amount of the component (E) used in the cosmetic of the present invention varies depending on the kind and purpose, and is not particularly limited, but is preferably 1 to 10%, more preferably 3 to 8%. %.

The cosmetic of the present invention comprises, for example, component (A),
(C) and (D), if necessary, prepare an aqueous component containing (E) and an oil component containing component (B), respectively.
It can be produced by dispersing and mixing an oil component with an aqueous component, and can be used in various forms such as emulsion, cream, gel and the like.

The cosmetic of the present invention comprises, in addition to the above essential components,
In general, components to be blended in cosmetics, for example, oils, surfactants, powders, lower alcohols, preservatives, pigments, fragrances, cosmetic ingredients, humectants, and the like can be used as long as the effects of the present invention are not impaired. it can.

[0020]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

Examples 1 to 6 and Comparative Examples 1 to 3 Cosmetics having the compositions shown in Tables 1 and 2 were produced, and the following items were evaluated.

[0022]

[Table 1]

[0023]

[Table 2]

(Production method) A: Components 1 to 3 are dispersed and mixed with a roller in advance, and then mixed with components 4 to 9. B: Component 10 was added to A and mixed to obtain a cosmetic.

(Evaluation Method) Sensory Evaluation Twenty-two evaluation panels evaluated the “acne-improving effect”, “water resistance”, “non-stickiness”, and “freshness” on a five-point scale, and further evaluated the average score. [Evaluation] [Content] 5 points: Very good. 4 points: good. 3 points: Normal. 2 points: Somewhat poor. 1 point: defective. [Judgment] ：: Average score of 4.5 or more. ：: Average score of 3.5 or more and less than 4.5. Δ: Average score of 2.5 or more and less than 3.5. ×: Average point less than 2.5 points.

2. Stability evaluation The state of the cosmetic after being left at room temperature for 4 weeks was visually observed. Those with no change were evaluated as ◎, and those with change such as separation were evaluated as x. The results obtained are shown in Table 1.

As is clear from the above evaluation results, Examples 1 to 6 according to the present invention were excellent in both acne prevention effect and sensory evaluation. On the other hand, Comparative Examples 1 to 3 failed to satisfy all of the evaluation items.

Example 7 Cosmetic (Component) (%) 1. Dextrin palmitate 1.0 Liquid paraffin 10.0 3. Glyceryl tri-2-ethylhexanoate 5.0 4. Sulfur 1.05. 5. polyoxyethylene monooleate (20) sorbitan 0.1 Glycerin 0.9 7. Xanthan gum 2.0 8. Dipropylene glycol 15.0 9. Preservative appropriate amount 10. Appropriate amount of fragrance 11. Purified water balance

(Production method) A: Components 1 to 3 are uniformly heated and mixed, and then cooled to obtain an oil-based gel. B: Components 4 to 6 are dispersed and mixed in advance with a roller, and the resulting mixture is uniformly mixed with components 7 to 11 to obtain an aqueous gel. C: A was added to B and mixed to obtain a cosmetic. In Example 7, the water resistance was good, the acne prevention effect and its sustainability were excellent, and the usability was good.

Example 8 Cosmetic (Component) (%) 2. Dimethyl distearyl ammonium modified hectorite 2.0 2.2 Cetyl 2-ethylhexanoate 10.0 Liquid paraffin 5.0 4. Sulfur 2.0 5. 5. polyoxyethylene alkyl ether phosphoric acid 0.2 Dipropylene glycol 1.8 7. Methyl cellulose 1.0 Sodium carboxymethyl cellulose 1.0 9. Ethanol 15.0 10. Glycerin 3.0 11. Preservative appropriate amount 12. Appropriate amount of fragrance 13. Dye appropriate amount 14. Antioxidant appropriate amount 15. Purified water balance

(Production method) A: Components 1 to 3 are uniformly heated and mixed, and cooled to obtain an oil-based gel. B: Components 4 to 6 are dispersed and mixed with a roller in advance, and the resulting mixture is uniformly mixed with components 7 to 15 to obtain an aqueous gel. C: A was added to B and mixed to obtain a cosmetic. Example 8 had good usability and water resistance, and was excellent in acne prevention and improvement effects.

Example 9 Cosmetic (Component) (%) KSG-16 (Note 1) 3.0 2. 2. Methylphenyl polysiloxane 5.0 3. Perfluoropolyether 2.0 4. Sulfur 0.55. 5. polyoxyethylene alkyl ether phosphoric acid 0.05 Glycerin 0.45 7. 7. Carboxyvinyl polymer 0.2 Methylcellulose 0.19. Sodium hydroxide (1% aqueous solution) 5.0 10. Ethanol 15.0 11. Appropriate amount of fragrance 12. Preservative appropriate amount 13. Remaining purified water (Note 1) Shin-Etsu Chemical Co., Ltd.

(Production method) A: An oil-based gel is obtained by uniformly mixing components 1 to 3. B: Components 4 to 6 are dispersed and mixed with a roller in advance, and this is uniformly mixed with components 7 to 13 to obtain an aqueous gel. C: A was added to B and mixed to obtain a cosmetic. In Example 9, the water resistance was good, the acne improvement effect was excellent, and the usability was good.

[0034]

Industrial Applicability The cosmetic of the present invention has good water resistance, is excellent in acne prevention and improvement effects, is excellent in persistence of the effects, and has a good feeling of use in which stickiness and sliminess are suppressed. Things.

Claims (7)

[Claims] Claims: 1. The composition contains the following components (A) to (D): (A) sulfur (B) a silicone gel composition and / or an oil gelling agent (C) a water-soluble polymer (D) water. Characterized cosmetics. 2. The silicone gel composition in component (B) comprises:
A silicone polymer having a three-dimensional crosslinked structure in which the ratio of R ₂ SiO units to RSiO _1.5 units is 1 to 30: 1, which is insoluble in benzene but may contain benzene in the same weight or more as its own weight; 2. The cosmetic according to claim 1, comprising a low-viscosity silicone oil, wherein the weight ratio of the silicone polymer to the low-viscosity silicone oil is from 5:95 to 30:70. 3. The oil gelling agent in component (B) is one or more selected from organically modified clay minerals, polysaccharide fatty acid esters, and hydrophobic silicic anhydride. 3. The cosmetic according to any one of 2. 4. Component (C) is a carboxyvinyl polymer, methylcellulose, carboxymethylcellulose,
2. The composition according to claim 1, wherein the composition is at least one selected from xanthan gum, carrageenan, and alginate.
The cosmetic according to any one of Items 1 to 3, above. 5. The cosmetic according to claim 1, wherein the content of the silicone gel composition of the component (B) is 0.05 to 15% by weight. 6. The content of the oil gelling agent of the component (B) is from 1 to 1.
The cosmetic according to any one of claims 1 to 5, which is 40% by weight. 7. A cosmetic comprising the component of claim 1 and a powder as component (E).