JP4757653B2 - Gommage cosmetic - Google Patents

Description

  The present invention relates to gorgeous cosmetics, and more particularly, to gorgeous cosmetics that, when applied to the skin and rubbed, dullness is easily generated in a short time and has a low burden on the skin.

  Gommage cosmetics are applied on the skin, then rubbed with fingers or instruments to make an eraser scum-like scum appear, adhering old keratin and dirt to this scum, and finally this scum It is a cosmetic intended to remove old keratin and dirt on the skin by removing the skin. Conventionally, this gorgeous cosmetic has been proposed to contain a film-forming substance and the like, and further to which a powder is added in order to increase its gamage effect. For example, various gorgeous cosmetics containing a film-forming water-soluble polymer substance such as polyvinyl alcohol, dextrin and sodium carboxymethyl cellulose and powder have been proposed (Patent Documents 1 to 5).

The above powder is blended in order to further improve the gommage effect, i.e., the appearance of debris, and the effect of adsorbing and removing the dirt and layered stratum corneum on the debris. Inorganic powders and organic powders such as kaolin, sericite, talc, silicic anhydride, aluminum silicate, cellulose powder (crystalline cellulose), nylon powder and polyethylene powder are listed. However, in gorgeous cosmetics, after applying to the skin, it is rubbed relatively strongly using fingers or tools so that debris appears, so when these solid powders are blended, There was a problem that the burden on the skin was excessive, such as increased irritation.
JP 2000-169355 A JP 2000-219618 A JP 2000-290136 A JP 2001-89323 A JP 2003-104868 A

  An object of the present invention is to provide a sesame cosmetic that exhibits a sufficiently excellent sesame effect without blending a conventionally used powder.

That is, the present invention includes the following components (A), (B), (C), (D);
(A) 0.5-5% by mass of at least one film-forming water-soluble polymer selected from sodium alginate and sodium carboxymethylcellulose
(B) 1-7 mass% of water-absorbing resin particles
(C) Monohydric lower alcohol 0.5-20 mass%
(D) A gorgeous cosmetic characterized by containing water.

Water-absorbing resin particles of the above Ingredient (B) is cross-linked sodium polyacrylate and starch - preferably used at least one selected from sodium acrylate graft copolymers. Further, the total content of the component (A) and the component (B) is 1.5 to 8% by mass, and the content ratio (A) / (B) of the component (A) and the component (B) is 1/6. It is preferable to make it -5/1. Moreover, it is preferable to mix | blend a water swellable clay mineral as a component (E) with gorgeous cosmetics further.

  In the sesame cosmetic of the present invention, the film-forming water-soluble polymer of component (A) forms a film on the skin when applied to the skin, and becomes an appearance source of debris when rubbed. The water-absorbent resin particles of component (B) are present in the cosmetic in a water-swollen state, but when rubbed, the water is slightly separated by the rubbing pressure and the water absorption rate is changed. (B) becomes unevenly present, and thus promotes the appearance effect of debris. And although the water is slightly separated in this way, since the component (B) is in a water-swelled state, even if it is rubbed relatively strongly, physical irritation to the skin is reduced and the burden on the skin is small. In short, the gorgeous cosmetic of the present invention has less burden on the skin because the water-swelled water-absorbent resin particles are blended in place of the powder conventionally blended in the gorgeous cosmetic. In addition, there is an advantage that the time until the appearance of the debris is short.

  The film-forming water-soluble polymer of component (A) used in the present invention is a film-forming water-soluble polymer that can be used in cosmetics, and is a natural, synthetic or semi-synthetic water-soluble polymer. . For example, guar gum, xanthan gum, locust bean gum, tragacanth gum, gum arabic, gellan gum, chondroitin sulfate sodium, hyaluronic acid, sodium alginate, alginate such as calcium alginate, carrageenan, quince seed, galactan, mannan, starch, pectin, dextrin, curd Natural water-soluble polymers such as orchid, casein and collagen, semi-synthetic water-soluble polymers such as methylcellulose, hydroxypropylmethylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, sodium carboxymethylcellulose, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, Synthetic water such as polyvinyl alcohol, polyvinyl pyrrolidone, sodium polyacrylate Sex polymer and the like. One or more of these can be selected and used as appropriate.

  The film-forming water-soluble polymer of component (A) vaporizes moisture after the cosmetic is applied on the skin or during rubbing to form a film on the skin. And, by rubbing, this film becomes dull and achieves a gommage effect. Among the above-mentioned film-forming water-soluble polymers, sodium alginate or carboxymethyl cellulose sodium is preferable, and those blended with these have the effect of fainting easily without taking the standing time for drying after application on the skin. Have.

  The blending amount of the film-forming water-soluble polymer of the component (A) is 0.5 to 5% by mass (hereinafter simply indicated as “%”) in the gorgeous cosmetic, and preferably 1 to 3%. . Within this range, debris is likely to appear when rubbed, and therefore the burden on the skin is small. If the amount is less than 0.5%, the appearance amount of the dull is small, and a sufficient sesame effect cannot be obtained. If the amount is more than 5%, the burden on the skin when the dullness is increased is not preferable.

  The water-absorbent resin particles of component (B) used in the present invention are water-insoluble and water-absorbent resin particles. The water-absorbent resin is a polymer that has the property of instantly absorbing and swelling when contacted with water. As this water-absorbent resin, starch graft type, polyacrylate type, polyvinyl alcohol type, polyacrylamide type, polyoxyethylene type and the like are used. Two or more of these may be used in combination. The maximum water absorption is preferably about 400 to 1000 times its own weight. The water-absorbent resin particles preferably have a particle size of about 0.5 to 1.0 mm when absorbed and swollen. Particularly preferred water-absorbing resins are crosslinked sodium polyacrylate particles and starch-sodium acrylate graft copolymer particles. Cross-linked sodium polyacrylate is commercially available, for example, under the trade names of Sunfresh ST-500DC and Sunfresh ST-500MPS (both manufactured by Sanyo Chemical Industries). The starch-sodium acrylate graft copolymer is commercially available, for example, under the trade names of Sunfresh ST-100 and Sunfresh ST-100MPS (both manufactured by Sanyo Chemical Industries).

  The water-absorbent resin particles of component (B) are present in cosmetics in a water-swelled state, but when applied to the skin and rubbed, the water absorbs slightly due to the rubbing pressure and the water absorption rate changes. Thus, the component (B) is present non-uniformly. Therefore, it promotes that the film of the film-forming water-soluble polymer of the component (A) formed on the skin becomes debris by rubbing. However, since these particles are in a state of absorbing water, they do not damage the skin even when rubbed relatively strongly, and the burden on the skin is small. The blending amount of the water-absorbent resin particles of the component (B) is 1 to 7%, preferably 1 to 3% in the gorgeous cosmetic. When the blending amount is less than 1%, it is difficult for debris to appear, and it takes time to obtain a gommage effect, which increases the burden on the skin. On the other hand, when the blending amount is more than 7%, there are too many water-swelled components (B) in the cosmetic, and it is difficult to obtain the sesame effect.

  The sesame cosmetic of the present invention contains a monovalent lower alcohol as the component (C). By blending a monovalent lower alcohol, the transpiration rate of moisture from the gorgeous cosmetic can be increased when the gorgeous cosmetic is applied on the skin. Therefore, component (C) has the effect of increasing the film formation rate on the skin of the film-forming water-soluble polymer of component (A). Ingredient (C) also helps to evaporate the water that separates from ingredient (B) during rubbing and accelerates the appearance promoting effect of ingredient (B). Specific examples of the monovalent lower alcohol used in the present invention include ethanol, propanol, and 2-propanol. Among these, ethanol is particularly preferable because it is excellent in the property of accelerating the evaporation rate of water when the gorgeous cosmetic is applied on the skin and can further shorten the time for gorgeous makeup. The blending amount of the monovalent lower alcohol of component (C) is 0.5 to 20%, preferably 1 to 10%. If the blending amount is less than 0.5%, the evaporation rate of water decreases, and it takes time until the appearance of debris, and if it exceeds 20%, the evaporation of moisture is too fast and it is difficult to obtain a sufficient gommage effect. .

  The sesame cosmetic of the present invention contains water as component (D). Water is blended for the purpose of dissolving the film-forming water-soluble polymer of component (A) and bringing the water-absorbing resin particles of component (B) into a water-swelled state. The amount of water blended is an amount that can achieve at least the above object. The specific amount is appropriately determined depending on the contents of the component (A) and the component (B) and desired physical properties of the sesame cosmetic.

  In addition to the essential components (A) to (D), the sesame cosmetic of the present invention can further contain a water-swellable clay mineral as the component (E). By containing the water-swellable clay mineral of this component (E), in combination with the component (A) and the component (B), a synergistic thickening effect is exhibited, and the storage stability of the gorgeous cosmetic of the present invention Further improve the sex. Examples of the water-swellable clay mineral of component (E) include bentonite, montmorillonite, hectorite, synthetic smectite, and water-swellable fluoromica. Examples of commercially available products include Kunipia G-4, Smecton SA-2 (manufactured by Kunimine Industries), BENTONE MA, EW, LT, RV (manufactured by Elementis), and SUBMICA E (manufactured by Daito Kasei Kogyo Co., Ltd.). . These can be used by appropriately selecting one kind or two or more kinds. The amount of component (E) is preferably 0.1 to 3%.

  Further, in the sesame cosmetic of the present invention, the total amount of the film-forming water-soluble polymer of component (A) and the water-absorbent resin particles of component (B) is debris when applied to the skin and rubbed. Greatly affects the appearance of. This affects not only the amount of debris, but also the time until debris appears. Component (B), when used in combination with the film-forming water-soluble polymer of component (A), imparts an appropriate viscosity to the gorgeous cosmetic and facilitates formation of the component (A) film on the skin by application. To do. Also, by rubbing after application, the water in the swollen component (B) is slightly separated, and the water absorption rate of the component (B) changes, so that the component (B) exists non-uniformly. Therefore, it promotes the appearance effect of dregs. In order to obtain a sufficient gommage effect, the total content of component (A) and component (B) is 1.5 to 8%, and the content ratio of component (A) and component (B) (A ) / (B) is preferably 1/6 to 5/1.

  In the sesame cosmetic of the present invention, in addition to the essential components described above, components usually incorporated in cosmetics, for example, liquid oils such as surfactants, hydrocarbon oils, ester oils, silicone oils, solid oils, semisolid oils , Cosmetics such as alcohols, fragrances, moisturizers, ultraviolet absorbers, antioxidants, preservatives, colorants, astringents, plant extracts, vitamins, powders and the like within the range not impairing the effects of the present invention. It can mix | blend suitably.

The gorgeous cosmetic of the present invention is suitable for gamage such as face, arm, elbow and heel. The gorgeous cosmetic of the present invention may be applied to the skin of a desired site and rubbed as it is, or it may be rubbed as it is, or after it is applied on the skin, it is left for a certain time, for example, about 20 seconds to 1 minute, and then rubbed. May appear. The latter method of use is preferable because it can be felt in a short time when it is rubbed.
〔Example〕
EXAMPLES Next, although an Example demonstrates this invention in detail, this invention is not limited at all by these.

  Gel-shaped gorgeous cosmetic for face was prepared by the composition shown in Tables 1 and 2 and the following production method. The obtained gorgeous cosmetic for face is made up of (1) the speed of wiping when gommage (the number of rubs required for wiping), (2) no burden on the skin, and (3) the skin after use. The absence of squeaky feeling was evaluated by the following method. The results are also shown in Tables 1 and 2.

(Production method)
Ingredients 1-12 are heated to 60-80 ° C., mixed uniformly, and then cooled.

Evaluation and determination method Each sample of the inventive products 1 to 12 and comparative products 1 to 6 of Example 1 was used by 20 professional evaluation panelists, one product per day twice a day in the morning and night ( 1) Speed of blurring during gommage (number of rubs required for blurring), (2) No burden on skin, (3) No squeaky skin after use (a) The evaluation criteria were evaluated in five levels, and the average score of each sample was determined using (b) 4-level criteria.

(A) Five-level evaluation criteria (score) (Evaluation)
(1) Speed of blurring (2) No feeling of burden (3) No feeling of squeaking 4: Within 30 times Very not very much 3: 31 to 50 times No not 2: 51 to 70 times Normal Normal 1 : 71-90 times Yes Yes 0: 91 times or more Very high (b) 4-step criteria (average score) (Judgment)
Over 3.0: ◎
2.0 to 3.0 and below: ○
More than 1.0 and not more than 2.0: △
1.0 or less: ×

  As is clear from the results in Table 1, the products 1 to 12 of the present invention are excellent in the speed of blurring at the time of gommage, no feeling of burden on the skin, and no squeaky feeling on the skin after use. It is a gorgeous cosmetic for face that has an excellent gamage effect for removing old keratin.

Example of emulsified gommage (component) (%)
1. Sodium alginate 2.0
2. Cross-linked sodium polyacrylate 2.5
3. Dipropylene glycol 15.0
4). Bentonite 0.4
5. Ethyl alcohol 8.0
6). Glyceryl tri-2-ethylhexanoate 3.0
7). Isostearic acid 1.0
8). Decamethylcyclopentasiloxane 1.0
9. Monooleic acid polyoxyethylene (20) sorbitan 0.5
10. Sorbitan monoisostearate 1.0
11. Preservative 0.1
12 Purified water remaining

(Production method)
A: Components 6 to 10 are heated and mixed at 80 ° C.
B: Components 1 to 5, 11, and 12 are heated and mixed at 60 to 80 ° C.
C: A was added to B, mixed uniformly, and then cooled to obtain an emulsified gommage pack.
The resulting emulsified gommage pack is excellent in the speed of blurring during gommage, the feeling of strain on the skin, and the squeakiness of the skin after use. It was excellent.

Example of gommage cosmetic for body (Ingredient) (%)
1. Sodium carboxymethylcellulose 3.0
2. Cross-linked sodium polyacrylate 2.0
3. Ethyl alcohol 10.0
4). l-Menthol 0.5
5.1,3-Butylene glycol 15.0
6). Synthetic smectite 0.7
7). Fragrance 1.0
8). Preservative 0.1
9. Purified water remaining

(Production method)
1-9 are heated to 60-80 degreeC, and after mixing uniformly, it cools.
The resulting gel-like gorgeous cosmetic for the body is excellent in the speed of wiping during gommage, the feeling of strain on the skin, and the squeaking sensation of the skin after use, removing dirt and old keratin. The sesame effect was excellent.

Claims (4)

The following components (A), (B), (C), (D);
(A) 0.5-5% by mass of at least one film-forming water-soluble polymer selected from sodium alginate and sodium carboxymethylcellulose
(B) 1-7 mass% of water-absorbing resin particles
(C) Monohydric lower alcohol 0.5-20 mass%
(D) A gorgeous cosmetic characterized by containing water. Component water-absorbing resin particles (B) is cross-linked sodium polyacrylate and starch - gommage cosmetic of claim 1, wherein at least one selected from sodium acrylate graft copolymers. The total content of the component (A) and the component (B) is 1.5 to 8% by mass, and the content ratio (A) / (B) of the component (A) and the component (B) is 1 / The sesame cosmetic according to claim 1 or 2, which is 6 to 5/1. Furthermore, the water swellable clay mineral is mix | blended as a component (E), The sesame cosmetics in any one of Claims 1-3 characterized by the above-mentioned.