JP2005200378A - Makeup cosmetic excellent in resistance to discoloration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress change and loss of color tone by preventing discoloration of an organic pigment in a makeup cosmetic containing the organic pigment. <P>SOLUTION: This makeup cosmetic comprises an organic pigment in which 4-tert-butyl-4'-methoxybenzoylmethane is formulated with calcium stearate and a phospholipid composition. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a makeup cosmetic, and more particularly to a makeup cosmetic excellent in fading resistance.

  For makeup cosmetics, various pigments are usually blended for the purpose of playing an aesthetic role. However, these pigments are very unstable with respect to ultraviolet rays and oxidation, and there is a problem that the color tone of the makeup cosmetics changes and is damaged, and the quality of the makeup cosmetics is deteriorated. In particular, red organic pigments often used in makeup cosmetics such as lipsticks and eye shadows have a significant discoloration and the effect of the discoloration on the color tone of the cosmetics is large. Such as putting it in a water-resistant container, avoiding a color tone with poor light resistance, and increasing the blending amount of the pigment.

  On the other hand, in recent years, the popularity of products in which the contents can be seen from the outside in a transparent container instead of an opaque container has increased. Since such a container is UV transmissive, a product that easily changes its color tone has not been able to meet the needs sufficiently. Furthermore, in recent years, there is an increasing need for gloss products, but in such gloss products, the amount of pigments contained is very small, and the fading of red pigments is particularly fatal to the product.

  Therefore, in makeup cosmetics containing organic pigments, it has been strongly desired to improve the light resistance, that is, the fading resistance of organic pigments, particularly red organic pigments.

  For example, in a cosmetic compounded with an encapsulated colorant encapsulated with a cross-linked polymer so as not to cause color pigment crystal growth, color stability, compoundability, uniformity during application, etc. may be improved. Known (Patent Document 1).

  In addition, in order to protect the components in the cosmetic from light, a method of blending an ultraviolet absorber such as dihydroxybenzophenone or oxybenzone into the cosmetic itself is also known.

  Furthermore, in order to protect cosmetics from light in a transparent container, various attempts have been made to develop a container that is transparent and can protect contents from light (Patent Document 2).

  However, when the pigment is encapsulated, there are problems such as plasticization and dissolution caused by other compounding components, and there is a problem of affecting the feeling of use of the cosmetic. Moreover, even if it mix | blended only the ultraviolet absorber, the fading of the red organic pigment was not fully prevented. Furthermore, the existing transparent containers cannot effectively prevent the color change or loss due to the fading of the pigment in a gloss-based product or the like containing a very small amount of the color pigment.

On the other hand, 4-tert-butyl-4′-methoxybenzoylmethane is used as an ultraviolet absorber in whitening cosmetics and suncare cosmetics (Patent Document 3), and calcium stearate is an emulsion stabilizer and thickener in cosmetics. Further, as a lubricant or the like, the phospholipid or the composition thereof is used as a component for improving the usability and odor stability of cosmetics or enhancing the oxidative stability of the whitening component (Patent Documents 4 and 5), respectively. Used in cosmetics for separate purposes.
JP 2001-72887 A JP 2001-130650 A Japanese Patent Laid-Open No. 9-175777 JP-A-10-152417 JP 2002-265344 A

  In view of the circumstances as described above, the present invention provides a makeup cosmetic that contains an organic pigment and that prevents the fading of the organic pigment, has less color change and loss, and is excellent in fading resistance. It is for the purpose.

  The present inventor, in a makeup cosmetic containing an organic pigment, contains a combination of 4-tert-butyl-4′-methoxybenzoylmethane, calcium stearate, and a phospholipid composition in the cosmetic. The present invention has been completed by discovering that the discoloration of the organic pigment is significantly suppressed.

  A makeup cosmetic containing the organic pigment of the present invention is characterized in that 4-tert-butyl-4'-methoxybenzoylmethane, calcium stearate, and a phospholipid composition are blended. In the present invention, these compounds are considered to function to prevent the fading of organic pigments by a separate mechanism, and therefore, all three types are blended rather than each alone or in combination of two types. Thus, the fading of the organic pigment can be more effectively suppressed.

  As used herein, a phospholipid composition means one containing one or more natural or synthetic phospholipids, or hydrogenated products thereof. The phospholipid may be any one that is usually used as a raw material for cosmetics. Examples thereof include phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, phosphatidic acid, phosphatidylglycerol, and lysates thereof.

  The phospholipid composition preferably contains 10% by mass or more of phosphatidylethanolamine with respect to the total mass of the composition. When such a phospholipid composition is used, the fading of the organic pigment can be particularly remarkably suppressed.

  The organic pigment preferably comprises one or more red organic pigments. For example, the red organic pigment contains Red No. 202, and the Red No. 202 is contained in an amount of 0.00001 to 0.5% by mass with respect to the total mass of the makeup cosmetic. The effect of the present invention is particularly effective in makeup cosmetics containing red organic pigments, particularly red No. 202, in a small amount because the red organic pigments have a significant discoloration and the influence of the discoloration on the color tone of the cosmetics is large. It is remarkable.

  In the present specification, makeup cosmetics are cosmetics that can exert an aesthetic role and a protective role in the user, and are not particularly limited as long as they contain organic pigments. For example, lipsticks and blushers , Eye shadow, eyeliner, mascara, eyebrow, nail enamel, nail treatment, etc. Examples of the dosage form include an oily type, an emulsifying type, a solid type, a powder, a sheet shape, a kneaded shape, a liquid type, a volatile oil type, and the like. Therefore, it is preferable to be an oily type, that is, an oily makeup cosmetic.

  The makeup cosmetic containing the organic pigment of the present invention contains 4-tert-butyl-4′-methoxybenzoylmethane, calcium stearate, and a phospholipid composition, so that fading of the organic pigment is remarkably suppressed. There is little change in color and loss. Even when placed in a light-transmitting transparent container, the color tone stability is high. Therefore, even a gloss product having a very small amount of organic pigment can be placed in a transparent container. In particular, makeup cosmetics including red organic pigments, especially Red No. 202, can stably provide a color tone that could not be provided as a conventional product due to the fading of these pigments.

4-tert-butyl-4′-methoxybenzoylmethane is a dibenzoylmethane derivative represented by the following structural formula (I), and is generally used as an oil-soluble ultraviolet absorber in basic cosmetics and makeup cosmetics. Used:

  This 4-tert-butyl-4'-methoxybenzoylmethane is commercially available, and a commercially available product such as Pasor 1789 (manufactured by Givandan) can be used in the present invention.

  In the present invention, the blending amount of 4-tert-butyl-4′-methoxybenzoylmethane is not particularly limited, but is preferably in the range of 0.001 to 10% by mass with respect to the cosmetic, more preferably 0.8. The range is from 0 to 5% by mass. If it is less than 0.001% by mass, the organic pigment may not be sufficiently inhibited from fading, and if it exceeds 10% by mass, problems may arise in safety and usability.

Calcium stearate is a higher fatty acid metal salt ([CH ₃ (CH ₂ ) ₁₆ COO] ₂ Ca), and is widely used in cosmetics as an emulsion stabilizer, thickener, or lubricant. In the present invention, calcium stearate is considered to contribute to the stabilization of organic pigments. For example, what is marketed from Japanese fats and oils, Dainippon Ink Chemical, Kanto Chemical, etc. can be used in this invention.

  In the present invention, the compounding amount of calcium stearate is not particularly limited, but is preferably in the range of 0.001 to 10% by mass, more preferably in the range of 0.01 to 1% by mass with respect to the cosmetic. If it is less than 0.001% by mass, the fading suppression effect of the organic pigment may not be sufficiently obtained, and if it exceeds 10% by mass, there may be a problem in usability.

The phospholipid composition used in the present invention is not particularly limited. For example, natural phospholipid-containing materials extracted from animals and plants such as soybean, egg yolk, corn and rapeseed, microorganisms such as Escherichia coli, and hydrogenated products thereof. Furthermore, one or a mixture of two or more phospholipids obtained by synthesis or isolated or fractionated from nature, such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, phosphatidic acid, phosphatidylglycerol, etc. Is mentioned. In the present invention, the phospholipid composition is considered to play a role of preventing oxidative degradation of the organic pigment. When a phospholipid composition containing a high proportion of phosphatidylethanolamine is used, a particularly remarkable organic pigment fading suppression effect can be brought about. Preferably, the phospholipid composition used in the present invention contains 10% by mass or more of phosphatidylethanolamine, more preferably 15% by mass or more, and further preferably 18% by mass or more. For example, Basis LP-20H (phosphatidylethanolamine content 18 to 25% by mass), which is a hydrogenated soybean phospholipid commercially available from Nisshin Oilio Co., Ltd., can be suitably used in the present invention.
In the present invention, the blending amount of the phospholipid composition is not particularly limited, but is preferably in the range of 0.001 to 10% by mass, and more preferably in the range of 0.01 to 1% by mass. If it is less than 0.001% by mass, the fading suppression effect of the organic pigment may not be sufficiently obtained, and if it exceeds 10% by mass, there may be a problem in usability.

  The organic pigments used in the present invention may be those usually used as raw materials for cosmetics. For example, red 201, red 202, red 204, red 205, red 220, red 226, red 228 No., Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red 505, orange 205, yellow 4, yellow 5, yellow 202, yellow 203, green 3 and blue 1 are listed. The makeup cosmetic of the present invention contains one or more of these organic pigments. In particular, when the red organic pigment, especially Red No. 202 is included, the effect of the present invention is remarkable. Red No. 202 (calcium salt of 4- (orthosulfoparatolylazo) -3-hydroxy-2-naphthoic acid) is a deep red pigment and is widely used in makeup cosmetics such as lipsticks and blushers.

  In the present invention, the blending amount of each organic pigment is not particularly limited, but is preferably in the range of 0.00001 to 0.5 mass%, more preferably in the range of 0.0001 to 0.1 mass%. The effect of the present invention is remarkable when organic pigments, particularly red organic pigments such as Red No. 202, are contained in a trace amount.

  In addition to the above essential components, the makeup cosmetics of the present invention include other optional components commonly used in cosmetics, such as powder components, liquid fats and oils, solid fats and oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, esters. , Silicone, anionic surfactant, cationic surfactant, amphoteric surfactant, nonionic surfactant, water, humectant, polymer, thickener, film agent, UV absorber, sequestering agent, lower alcohol , Polyhydric alcohols, sugars, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, fragrances, etc., as appropriate, as long as the effects of the present invention are not impaired. Depending on the intended dosage form, it can be produced by a conventional method. Further, in addition to the organic pigments described above, other arbitrary color materials that are usually used in makeup cosmetics may be included as long as the effects of the present invention are not impaired.

  In the case of oily makeup cosmetics, it includes one or more of solid, semi-solid, or liquid oily raw materials usually used in such cosmetics. Examples of the solid or semi-solid oily raw material include, but are not limited to, molasses, hardened beef tallow, carnauba wax, candelilla wax, rice wax, beeswax, ceresin wax, microcrystalline wax, paraffin wax, polyethylene wax, hardened jojoba oil , Lanolin, petrolatum and the like. The liquid oily raw material is not limited, but, for example, hydrocarbons such as liquid paraffin, liquid isoparaffin (liquid polyisobutylene), squalane; natural animal and vegetable oils such as olive oil and jojoba oil; silicone oil such as dimethylpolysiloxane Synthetic ester oils such as isopropyl myristate and the like.

    EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to the following Example.

Lipsticks were prepared with the composition shown in Table 1 (Example 1, Comparative Examples 1 to 7). All blending amounts are expressed in terms of mass% with respect to the cosmetic. The sample was irradiated with a xenon fade meter (manufactured by Suga Test Instruments Co., Ltd.) at 120 MJ / m ² for 30 hours, the color difference of the sample before and after irradiation was measured, and the red color was evaluated visually by the following criteria:
A: Almost fading B: Slight fading C: The result of fading is shown in Table 1:

  The lipstick (Example 1) containing the red 202 in which 4-tert-butyl-4'-methoxybenzoylmethane, calcium stearate, and a phospholipid composition of the present invention are blended is blended with any of these components. Not noticeable (Comparative Example 1), or only one or two (Comparative Examples 2 to 7) lipsticks were clearly discolored, i.e., less fading, and a significant fading-inhibiting effect was observed. .

  Examples of other makeup cosmetics prepared according to the present invention are shown below.

<Lipstick>
(Mixed component) (mass%)
Red No. 202 0.001
Phospholipid composition 0.1
(Basis LP-20H (Nisshin Oilio Co., Ltd.)
t-Butylmethoxydibenzoylmethane 0.1
Calcium stearate 0.05
Liquid paraffin 20
Polyoxyethylene / methylpolysiloxane copolymer 0.5
Methylphenyl polysiloxane 0.5
Glycerin 1
1,3-butylene glycol 3
Diisostearyl malate Residue Pigment 1
Pantothenyl ethyl ether 0.01
Arginine hydrochloride 0.01
Sodium hyaluronate 0.01
Dye Amount Synthetic sodium silicate / magnesium 1.5
Dextrin palmitate 2.5
Heavy liquid isoparaffin 20
Purified water 1

<Lipstick>
(Mixed component) (mass%)
Red No. 202 0.001
Phospholipid composition 0.1
(Basis LP-20H (Nisshin Oilio Co., Ltd.)
t-Butylmethoxydibenzoylmethane 0.1
Calcium stearate 0.05
Microcrystalline wax 2
Ceresin 11
Liquid lanolin 2
Squalane 1
Macadamia nut oil fatty acid cholesteryl 8
Diisostearyl malate 10
Glyceryl diisostearate 5
Glyceryl tri-2-ethylhexanoate 30
Isostearyl oxystearate 10
Silicone-coated pigment 4
Barium sulfate 4
Bengala-coated mica titanium 0.1
Phytosterol 0.1
Heavy liquid isoparaffin 10
Dye proper amount Perfume proper amount

<Eye Shadow / Beautiful Red (medium dish, wet molding prescription)>
(Mixed component) (mass%)
Red No. 202 0.001
Phospholipid composition 0.1
(Basis LP-20H (Nisshin Oilio Co., Ltd.)
t-Butylmethoxydibenzoylmethane 0.1
Calcium stearate 0.05
Vaseline 2
Dimethylpolysiloxane 2
Methylphenyl polysiloxane 2
Glycerin 0.1
Trioctanoin 1
Plant-based squalane 0.5
Sorbitan sesquiisostearate 1
Alkyl modified silicone resin coated bengara 0.1
Boron nitride 2
Mica titanium 4
Phlogopite 4
Synthetic phlogopite 0.1
Sericite 25
Talc Remaining Mica 7
Zinc myristate 1
Aluminum stearate 0.01
Silicic anhydride 4
Phytosterol 0.01
DL-α-tocopherol acetate 0.02
D-δ-tocopherol 0.02
Acetylated sodium hyaluronate 0.02
P-Hydroxybenzoate ester 0.2
Bengala 7
Black iron oxide 2
Synthetic sodium silicate / magnesium 0.1
Perfume appropriate amount diisostearyl malate 5
Triisostearin 2

<Eye shadow / blusher (powder (loose))>
(Mixed component) (mass%)
Red No. 202 0.001
Phospholipid composition 0.1
(Basis LP-20H (Nisshin Oilio Co., Ltd.)
t-Butylmethoxydibenzoylmethane 0.1
Calcium stearate 0.05
Zinc oxide 0.1
Mica titanium 40
Talc Residue Paraoxybenzoate Equal amount Ultramarine 2

<Eye shadow / blusher (oil-based cream)>
(Mixed component) (mass%)
Red No. 202 0.001
Phospholipid composition 0.1
(Basis LP-20H (Nisshin Oilio Co., Ltd.)
t-Butylmethoxydibenzoylmethane 0.1
Calcium stearate 0.05
Ceresin 3
Decamethylcyclopentasiloxane Residue Polyoxyethylene / methylpolysiloxane copolymer 3
Methylphenylpolysiloxane 5
Sorbitan sesquiisostearate 1
Mica titanium 3
Carmine coated mica titanium 5
Bengala coated mica titanium 6
Mica 15
D-δ-tocopherol 0.02
Dimethyl distearyl ammonium hectorite 2.5
Polyalkyl acrylate 10
Trimethylsiloxysilicate 2.5
Spherical nylon powder 5

The makeup cosmetics of Examples 2 to 6 are all excellent in fading resistance and have very little color change and loss.

Claims (6)

A makeup cosmetic comprising an organic pigment, comprising 4-tert-butyl-4'-methoxybenzoylmethane, calcium stearate, and a phospholipid composition. The makeup cosmetic according to claim 1, wherein the phospholipid composition contains 10% by mass or more of phosphatidylethanolamine with respect to the total mass of the composition. The makeup cosmetic according to claim 1 or 2, wherein the organic pigment contains one or more red organic pigments. The makeup cosmetic according to claim 3, wherein the red organic pigment contains Red No. 202. The makeup cosmetics according to claim 4, wherein the red No. 202 is contained in an amount of 0.00001 to 0.5% by mass with respect to the total mass of the makeup cosmetics. 6. A makeup cosmetic according to claim 1, wherein the makeup cosmetic is an oily makeup cosmetic.