JP4600922B2 - Cosmetics - Google Patents

Description

  The present invention relates to a cosmetic containing a tar dye, an organic ultraviolet absorber and a condensed cachytannin, and more particularly to a cosmetic having high light resistance.

  In cosmetics, imparting a vivid color tone to the appearance is one of the important means for increasing commercial value. Therefore, tar dyes, inorganic pigments, pearl pigments and the like are generally used to make cosmetics have a vivid appearance. Among them, tar dyes are the most widely used. However, many tar pigments are not resistant to light, and colored cosmetics may be faded or discolored when exposed to sunlight during use. In order to prevent such a problem, measures are taken such as using a container with high light-shielding properties, or blending an organic ultraviolet absorber with a tar pigment in cosmetics.

  Condensed cachytannins have an excellent deodorizing effect on unsaturated aldehydes that are one of the causes of body odor (Patent Document 1), an effect of increasing the dyeing power of oxidized hair dyes (Patent Document 2), and antibacterial effects thereof An antibacterial coating agent and an antibacterial sheet (Patent Document 3) using the effect are disclosed. However, it is not known at all that condensed cachytannin has an effect of remarkably improving the light resistance effect of the organic ultraviolet absorber.

JP 2001-302483 A JP 2001-64130 A Japanese Patent Laid-Open No. 2002-220312

  When using a container with high light shielding properties, discoloration and discoloration of cosmetics can be prevented, but there is a drawback that the color tone of the contents cannot be seen from the outside. In addition, when an organic ultraviolet absorber is blended with a tar pigment in a cosmetic, the light resistance effect of the organic ultraviolet absorber alone has not been sufficient, particularly when a pigment that is weak to light is used.

  As a result of intensive studies in view of the above matters, the present inventors have found that condensed cachytannin remarkably improves the light resistance effect of organic ultraviolet absorbers, and have completed the present invention.

Hereinafter, the configuration of the present invention will be described in detail. The tar colorant, which is an essential component of the present invention, is selected from Blue No. 1, Blue No. 202, Red No. 102, Red No. 401, Red No. 504, Green No. 3, Yellow No. 5, Yellow No. 203 and Orange No. 205. 1 type or 2 types or more .

  The tar dyes in the present invention may be used alone or in combination of two or more.

The second essential component, an organic ultraviolet absorber , is sodium dihydroxydimethoxybenzophenone disulfonate . The blending amount is not particularly limited, but is preferably 0.001 to 0.5% by weight, more preferably 0.01 to 0.1% by weight of the composition. If the amount is too small, the effect cannot be exhibited. If the amount is too large, there is no particular problem, but there is no advantage of mass mixing, which is uneconomical.

  The third essential component, condensed oyster tannin, is tannin obtained from the squeezed fruit of oyster tree: Diospyros kaki Thunberg (Ebenaceae). The production method includes, for example, a method in which a fruit is applied to a squeezing machine to obtain a juice and dried under reduced pressure, a method in which the juice is stored in an airtight state using an enzyme and then sugar is removed and dehydrated under reduced pressure. Can be mentioned. Specifically, there is a Pancil series (Release Kagaku Kogyo Co., Ltd.).

  Although the compounding quantity of the condensed type cachytannin in this invention is not specifically limited, Preferably it is 0.0005 to 0.25 weight% as an active ingredient of a composition, More preferably, it is 0.005 to 0.05 weight%. If the blending amount is too small, the effect cannot be exhibited. If the blending amount is too large, there is no particular problem, but crystals may be generated, which may be inconvenient.

  The cosmetic dosage form of the present invention can be arbitrarily selected according to purposes such as skin lotion, gel, emulsion, cream, pack, shampoo, rinse, hair wax, and other basic cosmetics and hair cosmetics.

  According to the purpose of use, the cosmetic of the present invention may appropriately contain various components used in ordinary cosmetics and quasi-drugs in addition to the above essential components as long as the effects of the present invention are not impaired. Can be manufactured by conventional methods.

  For example, hydrocarbons, fats and oils, waxes, various ester oils, animal oils, vegetable oils, silicone oils, fatty acids, alcohols such as higher alcohols, alcohols such as ethanol and polyhydric alcohols, amphoteric surfactants, anionic surfactants Agents, cationic surfactants, nonionic surfactants, pigments such as titanium oxide, mica and iron oxide, polymers such as carboxyl vinyl polymer, xanthan gum and hyaluronic acid, vitamins, fragrances, preservatives, chelates Contains any one or more selected from medicinal ingredients such as pharmacological agents, glycyrrhizic acid derivatives and various plant extracts together with the above essential ingredients, and is produced by a conventional method according to the target cosmetic dosage form be able to.

  As described above, according to the present invention, the light resistance of the cosmetic is greatly improved by blending the organic ultraviolet absorber and the condensed cachytannin with the cosmetic colored with the tar dye. The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to the following examples. In addition, the compounding quantity of each component in prescription shall be weight%.

  The skin lotions formulated as in Examples 1 to 6 and Comparative Examples 1 to 4 in Table 1 were prepared by a conventional method, put in a transparent container, subjected to a 20-hour weather meter test, and then visually. The change in color tone was compared with the blank to evaluate its light resistance. Note that a sunshine weather meter manufactured by Suga Test Instruments Co., Ltd. was used as a test apparatus.

Evaluation methods:
A: Not discolored.
○: Almost no fading.
×: Fading severely.

  When the cosmetics of Examples 7 to 11 having the following formulations were prepared by a conventional method, all were cosmetics excellent in light resistance.

Example 7
Lotion Blue No. 202 0.0002
Dihydroxydimethoxybenzophenone
Sodium disulfonate 0.03
Pancil COS-6 (5% oyster tannin) 0.6
1,3 Butylene glycol 5.0
Sodium metaphosphate 0.05
Citric acid 0.05
Sodium citrate 0.1
Ethanol 5.0
Preservative proper amount Fragrance proper amount Purified water remaining amount

Example 8
Wipe Toner Lotion Red 504 0.00001
Daidai 205 No. 0.0001
Tetrahydroxybenzophenone 0.05
Pancil COS-6 (5% oyster tannin) 0.4
Dipropylene glycol 8.0
Sodium polyphosphate 0.05
Citric acid 0.1
Sodium citrate 0.2
Ethanol 9.0
Preservative proper amount Fragrance proper amount Purified water remaining amount

Example 9
Gel Blue No.1 0.00005
Hydroxymethoxybenzophenonesulfonic acid 0.1
Pancil COS-6 (5% oyster tannin) 0.2
Carboxyvinyl polymer 0.6
Potassium hydroxide 0.2
Edetate 0.1
Glycerin 15.0
1,3-butylene glycol 10.0
Ethanol 3.0
Preservative appropriate amount Purified water remaining amount

Example 10
Latex Red No. 102 0.0005
Red 401 No. 0.00002
Hydroxymethoxybenzophenone 0.05
Pancil COS-6 (5% oyster tannin) 0.4
Monostearic acid POE (20) sorbitan 1.0
Tetraoleic acid POE (40) sorbitol 1.5
Lipophilic glyceryl monostearate 1.0
Stearic acid 0.5
Behenyl alcohol 1.5
Cetyl palmitate 0.5
Squalane 5.0
Neopentyl glycol dicaprate 3.0
Methyl polysiloxane (100 cSt) 0.5
1,3-butylene glycol 8.0
Xanthan gum 0.1
Preservative proper amount Fragrance proper amount Purified water remaining amount

Example 11
Cream Green No. 3 0.00003
Yellow No. 203 0.0001
Octyl paramethoxycinnamate 0.5
Pancil COS-6 (5% oyster tannin) 0.1
Monostearic acid POE (20) sorbitan 3.0
Sorbitan monolaurate 1.0
Cetanol 3.0
Squalane 10.0
Liquid paraffin 5.0
Glycerin 5.0
1,3-butylene glycol 5.0
Xanthan gum 0.2
Preservative proper amount Fragrance proper amount Purified water remaining amount

Example 12
Shampoo Yellow No.5 0.0001
Yellow No. 203 0.001
Dihydroxydimethoxybenzophenone
Sodium disulfonate 0.02
Pancil COS-6 (Kakitannin 5%) 1.0
POE sodium lauryl ether acetate (3EO) 6.0
Sodium tetradecene sulfonate 5.0
N-lauroyl-N′-carboxymethyl-N ′
-Sodium hydroxyethylethylenediamine 2.0
Coconut oil fatty acid monoethanolamide 0.5
Citric acid 1.3
Sodium citrate 1.1
Purified water balance

As described above, according to the present invention, it is possible to provide a colorful cosmetic having excellent light resistance.

Claims (4)

A cosmetic comprising the following components A to C.
A: One or more selected from Blue No. 1, Blue No. 202, Red No. 102, Red No. 401, Red No. 504, Green No. 3, Yellow No. 5, Yellow No. 203 and Daidai No. 205 B: Dihydroxy Sodium dimethoxybenzophenone disulfonate C: condensed cachytannin The cosmetic according to claim 1, wherein the dosage form is lotion or gel .   The blending amount of component B is 0.001 to 0.5% by weight, and the blending amount of component C is 0.0005 to 0.25% by weight. Cosmetics described.   The blending amount of component B is 0.01 to 0.1% by weight, and the blending amount of component C is 0.005 to 0.05% by weight. Cosmetics described.