JP2005075690A - Compound body containing iron phosphate and cosmetic containing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compound body containing iron phosphate, which is excellent in ultraviolet protecting ability and highly transparent; and to provide a cosmetic containing the same. <P>SOLUTION: The compound body containing iron phosphate contains iron phosphate and one or more kinds selected from a tungstate of one or more kinds of metals selected from titanium, zinc, iron, silver, cobalt, aluminum, cerium, and calcium, an iron oxide, and silica. In the compound body, it is preferable that the content of the iron phosphate is 60-95 mass % based on the total amount of the compound body, the average particle diameter is 10-100 nm, and particles are substantially finely dispersed to each other in a primary particle state. The cosmetic contains the compound body containing iron phosphate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an iron phosphate-containing complex and a cosmetic containing the same, and more particularly to an iron phosphate-containing complex that is excellent in UV protection and has high transparency, and a cosmetic including the same.

In outdoor leisure and sports, sunscreen creams have been used for a long time to prevent the skin from being exposed to excessive ultraviolet rays and causing inflammation.
In recent years, even in the unconsciously exposed ultraviolet rays in daily life, it has become known that it causes spots, buckwheat, wrinkles due to photoaging, skin cancer due to genetic damage of skin cells, etc. Experts such as dermatologists and dermatologists routinely recommend protecting the skin from ultraviolet radiation.

In response to this, at present, most cosmetics such as lotions, emulsions, creams and foundations are provided with an ultraviolet protection function.
In recent years, not only UVB but also UVA (320 to 400 nm), which has higher skin permeability than UVB (280 to 320 nm), has an effect on the skin (DNA damage, skin aging, increased adverse effects of UVB, etc.). The development of UVA protective agents is active.

Among substances having an ultraviolet protection function, there are organic substances as ultraviolet absorbers and inorganic substances as ultraviolet scattering agents, but inorganic substances that are considered to be highly safe are relatively preferred.
As the inorganic substance as the ultraviolet scattering agent, titanium dioxide, zinc oxide, iron oxide, or the like is used. However, when titanium dioxide or zinc oxide is used, the concealing power is too large and the finish is white. Moreover, since iron oxide has colors such as red, yellow, and black, there is a limit to the amount that can be added to cosmetics.

Therefore, iron phosphate and various composite phosphates have attracted attention for the purpose of obtaining a natural finish (Japanese Patent Laid-Open Nos. 11-209108, 11-209109, and 11-209110).
JP-A-11-209108 JP-A-11-209109 JP-A-11-209110

However, iron phosphate is inferior in UVA protection ability, although it is highly transparent and has some UVB protection ability. Further, none of the above complex phosphates was sufficient in both UV protection ability and transparency.
The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide an iron phosphate-containing complex that has an excellent ultraviolet protection ability and high transparency, and a cosmetic including the same.

In view of the above problems, as a result of intensive studies by the present inventors, by combining iron phosphate with tungstate, iron oxide, or silica, the transparency is high, and both UVA and UVB have excellent protective ability. It was found that a complex having
The first subject of the present invention is: iron phosphate,
One or two selected from the group consisting of tungstate, iron oxide, and silica of one or more metals selected from the group consisting of titanium, zinc, iron, silver, cobalt, aluminum, cerium, and calcium It is an iron phosphate containing complex characterized by including more than a seed.

In the complex, it is preferable that the content of iron phosphate is 60 to 95% by mass with respect to the entire complex.
In the composite, it is preferable that the average particle diameter of the composite is 10 to 100 nm.
In the composite, it is preferable that the composite is finely dispersed in a substantially primary particle state.
The second subject of the present invention is a cosmetic comprising the iron phosphate-containing complex.

  According to the present invention, an iron phosphate-containing complex excellent in ultraviolet protection ability and transparency and a cosmetic containing the same are obtained by complexing tungstate, iron oxide, or silica with iron phosphate. It is done.

Hereinafter, preferred embodiments of the present invention will be described.
The iron phosphate-containing composite of the present invention can be obtained by combining one or more of tungstate, iron oxide, and silica with iron phosphate.
Considering the ultraviolet protection ability and transparency, the content of iron phosphate is preferably 60 to 95% by mass, particularly 70 to 85% by mass with respect to the entire complex.

<Iron phosphate / Iron oxide>
As a method of complexing iron oxide with iron phosphate, a solution of sodium hydroxide, potassium hydroxide or the like is dropped into a solution containing iron ions to generate iron hydroxide core particles, and then hydrogen phosphate. An aqueous solution of sodium or the like is added dropwise to combine iron hydroxide and iron phosphate, filter and dry, or after mixing sodium hydrogenphosphate solution and sodium hydroxide solution at a predetermined ratio, Although there is a method of adding at one time and filtering and drying, the method is not limited to this.

The content of iron oxide is preferably 5 to 40% by mass, and particularly preferably 15 to 30% by mass, based on the entire composite. If it exceeds 40% by mass, the transparency is inferior and unnatural brown is imparted, and if it is less than 5% by mass, the protective ability against UBA may be inferior.
When compounding iron phosphate and iron oxide, tungstate, silica, or other metal oxides can be compounded at the same time.

<Iron phosphate / tungstate>
As a method of complexing tungstate with iron phosphate, after dissolving tungstate such as sodium tungstate or potassium tungstate in a solution such as sodium hydrogen phosphate, iron, zinc, calcium, etc. There are a method of adding and precipitating ions, a method of adding an excess of a metal ion solution in a colloidal sol of tungstic acid, and then precipitating iron phosphate using sodium hydrogen phosphate or the like, but it is not limited thereto.

  The tungstate is preferably 5 to 40% by mass, particularly preferably 15 to 30% by mass, based on the entire composite. When it exceeds 40% by mass, the transparency is inferior, and when it is less than 5% by mass, the UV protection ability may be inferior.

<Iron phosphate / silica>
When complexing silica with iron phosphate, either an acidic or basic silica sol solution is selected and used according to the isoelectric point of the iron phosphate to be complexed. It is possible to synthesize a complex having high functionality in which the generation is controlled and each particle is uniformly dispersed. The silica sol used for complexing in the present invention is preferably a fine colloidal silica uniformly dispersed in a solution (commercially available products such as “Snowtex ^™ ” series manufactured by Nissan Chemical Co., Ltd.).

  The particle size of the silica sol used in the present invention is preferably 1 to 100 nm, and particularly preferably 5 to 60 nm. When the particle diameter exceeds 100 nm or less than 1 nm, aggregates of iron phosphate or silica particles are generated, which tends to cause a decrease in UV protection ability and an unnatural appearance color.

Silica is preferably 5 to 40% by mass, particularly preferably 15 to 30% by mass, based on the entire composite. If it is less than 5% by mass, only a material having the same degree of transparency as iron phosphate can be obtained, and if it exceeds 40% by mass, the intended UV protection ability cannot be exhibited.
When combining iron phosphate and silica sol, iron oxide, tungstate, or other metal oxide or sol can be combined at the same time.
The particle diameter of the iron phosphate-containing composite of the present invention is preferably 10 to 100 nm, particularly preferably 30 to 60 nm. If it exceeds 100 nm, transparency may be lost.

  In the present invention, the composite form of the iron phosphate-containing composite is not particularly limited, but iron phosphate and tungstate, iron oxide, and silica are finely dispersed in a substantially primary particle state. Is preferred. In this state, it is possible to obtain a composite with more excellent ultraviolet protection ability and transparency.

  The iron phosphate-containing composite of the present invention comprises, as necessary, fatty acid soaps such as aluminum stearate and zinc myristate; fatty acids such as stearic acid and palmitic acid; waxes such as candelilla wax and carnauba wax; POE-modified silicone, It can also be used by hydrophobizing the surface with a modified silicone such as carboxy-modified silicone or amino-modified silicone; a silicone oil such as methylpolysiloxane or methylphenylpolysiloxane;

  The cosmetic of the present invention is formulated for the purpose of protecting the iron phosphate-containing complex of the present invention with ultraviolet rays. In addition, the amount of iron phosphate-containing composite compounded in the cosmetics can not be generally defined by the formulation of the cosmetics and other compounding components in view of more specific purposes, In general, 0.1 to 60.0% by mass of the entire cosmetic is preferable, and 1.0 to 40.0% by mass is particularly preferable. If it is less than 0.1% by mass, a sufficient UV protection effect may not be obtained, and if it exceeds 60.0% by mass, the usability may be deteriorated.

  The cosmetic of the present invention has a very excellent protective effect against both UVA and UVB ultraviolet rays, and also has a surprising effect that the white finish and unnatural coloring do not occur and the finish is natural. Have

  In the cosmetic of the present invention, in addition to the above-described essential components, other components usually used in cosmetics and pharmaceuticals, for example, powder components, liquid fats and oils, waxes, waxes, and the like, as long as the effects of the present invention are not impaired. , Hydrocarbons, higher fatty acids, higher alcohols, esters, silicones, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, humectants, water-soluble polymers, thickeners, film agents, UV absorbers, sequestering agents, lower alcohols, polyhydric alcohols, sugars, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, fragrances, water, etc. Can be blended as necessary, and can be produced by a conventional method according to the intended dosage form.

  In addition, the cosmetic of the present invention can be widely applied to cosmetics, pharmaceuticals, and quasi drugs that are applied to the outer skin. The dosage form can be any drug formulation, including solution, solubilization, emulsion, powder dispersion, water-oil two-layer, water-oil-powder three-layer, gel, aerosol, It can be provided in any form such as a mist and a capsule.

  Also, the product form is arbitrary, and facial cosmetics such as lotion, milky lotion, cream, and pack; makeup cosmetics such as foundation, funny, blusher, lipstick, eye shadow, eyeliner, mascara, sunscreen, etc .; body cosmetics Fragrance cosmetics; skin cleansing agents such as make-up removers, facial cleansers, body shampoos; hair cosmetics such as hair rinses, shampoos, etc .; ointments; bath preparations; It can also be applied in the form.

  Hereinafter, preferred embodiments of the present invention will be described in more detail. In addition, this invention is not limited by this. The blending amount (%) is mass%.

(Production Example 1) Iron phosphate / iron oxide complex 13.9 g of iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) was dissolved in 200 mL of ion-exchanged water. In this, 115 mL of 1% sodium hydroxide solution was dropped at a rate of 1 mL / min to generate iron hydroxide particles. After aging this for 1 hour, 50 mL of a 7% disodium hydrogen phosphate solution was added dropwise thereto at a rate of 1 mL / min. The resulting slurry was filtered and dried under a nitrogen atmosphere to obtain an iron phosphate / iron oxide complex.
When this powder was observed with an electron microscope, it was confirmed that the powder was indeed complexed. The average particle diameter of the complex was about 60 nm, and the ratio of iron phosphate: iron oxide was about 85:15.

(Comparative Production Example 1) Iron phosphate Iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) 13.9 g was dissolved in 200 mL of ion-exchanged water. In this, 60 mL of 7% disodium hydrogenphosphate solution was added dropwise at a rate of 1 mL / min. The resulting slurry was filtered and dried under a nitrogen atmosphere to obtain iron phosphate.
When this powder was observed with an electron microscope, the average particle size was about 60 nm.

The powders obtained in Production Example 1 and Comparative Production Example 1 were mixed at a ratio of powder: castor oil = 1: 9 and kneaded with three rollers to prepare a slurry of each powder and castor oil. After kneading, a coating film was formed on a quartz plate with a 5 μm thick applicator, and the ultraviolet transmittance of the coating film was measured with a spectrophotometer (U-3410, manufactured by Hitachi, Ltd.).
The wavelength range is 400 to 800 nm for visible light, 320 to 400 nm for ultraviolet light (UVA), and 280 to 320 nm for ultraviolet light (UVB). Therefore, the higher the transmittance of 700 to 400 nm, the higher the transparency, and 400 to 280 nm. The lower the transmittance, the higher the UV protection ability. The results are shown in FIG.

  From the results of FIG. 1, the transmittance in the manufacturing example 1 is comparable to that in the comparative manufacturing example 1, whereas the transmittance in the ultraviolet region, particularly the UVA region, is generally higher than that in the comparative manufacturing example 1. It was confirmed that it has an excellent UV protection ability while being low and having the same transparency.

Production Example 2 Iron Phosphate / Iron Oxide Complex 40 mL of 7% disodium hydrogen phosphate and 115 mL of 1% sodium hydroxide were mixed. A solution prepared by dissolving 13.9 g of iron alum (FeNH ₄ (SO ₄ ) ₂ .12H ₂ O) in 200 mL of ion-exchanged water was added thereto. The resulting slurry was filtered and dried under a nitrogen atmosphere to obtain an iron phosphate / iron oxide complex.
When this powder was observed with an electron microscope, it was confirmed that it was indeed complexed. The average particle size of the complex was about 50 nm, and the ratio of iron phosphate: iron oxide was about 70:30.

(Comparative Production Example 2) Iron oxide Iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) 13.9 g was dissolved in 200 mL of ion-exchanged water. In this, 22.5 mL of 5% sodium hydroxide solution was added dropwise at a rate of 1 mL / min. The resulting solution was heated to evaporate water, then pulverized, washed with water, and dried at 105 ° C. to obtain iron oxide.
When this powder was observed with an electron microscope, it was agglomerated so that it was difficult to confirm the particle diameter. Agglomerate sizes varied from a few μm to over 100 μm.

  The powders obtained in Production Example 2 and Comparative Production Example 2 were mixed at a ratio of powder: castor oil = 1: 9 and kneaded with three rollers to prepare a slurry of each powder and castor oil. After kneading, a coating film was formed on a quartz plate with a 5 μm thick applicator, and the ultraviolet transmittance of the coating film was measured with a spectrophotometer (U-3410, manufactured by Hitachi, Ltd.). The results are shown in FIG.

The powder of Comparative Production Example 2 has a low transmittance in the visible region, the coloring is conspicuous, and the protective effect is extremely low in both the UVA region and the UVB region, whereas the powder of Production Example 2 has a high transmittance in the visible region. Excellent transparency and high protective effect in both UVA region and UVB region. From these results, it was confirmed that Production Example 2 had superior transparency and ultraviolet protection ability compared with Comparative Production Example 2.
The powder of Comparative Production Example 2 is agglomerated between the powders, whereas the powder obtained in Production Example 2 is complexed with iron oxide and iron phosphate in a fine form, and the iron oxide is locally agglomerated. I didn't.

(Production Example 3) Iron phosphate / iron tungstate complex 28.9 g of iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) was dissolved in 200 mL of ion-exchanged water. Separately, 1.8 g of sodium tungstate dissolved in 50 mL of ion-exchanged water was prepared and added dropwise to the iron alum solution at a rate of 1 mL / min. After aging for 1 hour, 50 mL of 16% disodium hydrogen phosphate solution was added dropwise at a rate of 1 mL / min. The resulting slurry was filtered and dried under a nitrogen atmosphere to obtain an iron phosphate / iron tungstate complex having an iron phosphate: iron tungstate ratio of about 85:15.
When this powder was observed with an electron microscope, it was confirmed that the powder was indeed complexed, and the average particle size of the complex was about 50 nm.

  The powder obtained in Production Example 3 was mixed at a ratio of powder: castor oil = 1: 9, and kneaded with three rollers to prepare a slurry of each powder and castor oil. After kneading, a coating film was formed on a quartz plate with a 5 μm thick applicator, and the ultraviolet transmittance of the coating film was measured with a spectrophotometer (U-3410, manufactured by Hitachi, Ltd.). The results are shown in FIG.

  From the results of FIG. 3, it was confirmed that Production Example 3 had high transmittance in the visible region and low transmittance in the ultraviolet region, and had excellent transparency and ultraviolet protection ability.

(Production Example 4) Iron phosphate / calcium tungstate complex 1.8 g of sodium tungstate was dissolved in 50 mL of ion-exchanged water. Separately, 0.8 g of calcium chloride was dissolved in 20 mL of ion-exchanged water and dropped into the sodium tungstate solution at a rate of 1 mL / min to obtain a calcium tungstate slurry. The calcium tungstate slurry is dispersed in 28.9 g of iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) dissolved in 200 mL of ion-exchanged water, and 50 mL of a 16% disodium hydrogen phosphate solution Was added dropwise at a rate of 1 mL / min. The resulting slurry was filtered and dried under a nitrogen atmosphere to obtain an iron phosphate / calcium tungstate complex having an iron phosphate: calcium tungstate ratio of about 85:15.
When this powder was observed with an electron microscope, it was confirmed that the powder was indeed complexed, and the average particle size of the complex was about 60 nm.

  The powder obtained in Production Example 4 was mixed at a ratio of powder: castor oil = 1: 9, and kneaded with three rollers to prepare a slurry of each powder and castor oil. After kneading, a coating film was formed on a quartz plate with a 5 μm thick applicator, and the ultraviolet transmittance of the coating film was measured with a spectrophotometer (U-3410, manufactured by Hitachi, Ltd.). The results are shown in FIG.

  From the results of FIG. 4, it was confirmed that Production Example 4 had high transmittance in the visible region and low transmittance in the ultraviolet region, and had excellent transparency and ultraviolet protection ability.

<Comparison between the iron phosphate-containing composite of the present invention and a conventional composite phosphate>
(Production Example 5) Iron phosphate / iron oxide / silica composite 13.9 g of iron alum (FeNH ₄ (SO ₄ ) ₂ · 12H ₂ O) was dissolved in 200 mL of 200 mL of ion-exchanged water. Into this, 10 g of basic silica sol (Snowtex XS ^™ : manufactured by Nissan Chemical Co., Ltd.) was added and mixed. In this, 50 mL of 7% disodium hydrogenphosphate solution was added dropwise at a rate of 1 mL / min. Thereafter, 115 mL of 1% sodium hydroxide was further added dropwise at a rate of 1 mL / min. The resulting slurry was heated with stirring under a nitrogen atmosphere to evaporate water. The obtained solid was pulverized, washed with water and filtered, and then dried at 105 ° C. in a nitrogen atmosphere to obtain an iron phosphate / iron oxide / silica composite.
When this powder was observed with an electron microscope, it was confirmed that it was indeed composited. The average particle size of the composite was about 20 nm, and the ratio of iron phosphate: iron oxide: silica was about 60:10:30. It was.

(Comparative Production Example 3) Zinc phosphate / manganese phosphate composite A composite phosphate was obtained according to the method shown in Example 2 of Patent Document 2 (Japanese Patent Laid-Open No. 11-209109). That is, 13.6 g of zinc chloride and 9.9 g of manganese chloride tetrahydrate were dissolved in 1 L of ion-exchanged water (solution A). Separately, diammonium hydrogen phosphate and 7 g of 28% ammonium hydroxide were dissolved in 0.3 L of ion-exchanged water (solution B). The liquid A was heated to 85 ° C., and the liquid B was added dropwise with stirring. After completion of dropping, the mixture was aged at 85 ° C. for 1 hour, and the resulting precipitate was filtered, dried, and fired at 450 ° C. for 1 hour to obtain a zinc phosphate / manganese phosphate complex.

  The powders obtained in Production Example 5 and Comparative Production Example 3 were mixed at a ratio of powder: castor oil = 1: 9 and kneaded with three rollers to prepare a slurry of each powder and castor oil. After kneading, a coating film was formed on a quartz plate with a 5 μm thick applicator, and the ultraviolet transmittance of the coating film was measured with a spectrophotometer (U-3410, manufactured by Hitachi, Ltd.). The results are shown in FIG.

From the results of FIG. 5, it was confirmed that Comparative Production Example 3 had a high transmittance in the visible region and a high transparency, but had almost no UVA protection ability and extremely low UVB protection ability. On the other hand, it was confirmed that Production Example 5 had high transparency and also high UVA and UVB protection ability and excellent UV protection ability.
1 to 5, the iron phosphate-containing composite of the present invention is highly transparent by combining tungstate, iron oxide, or silica with iron phosphate. It was confirmed that a complex having excellent protective ability was obtained for both.

<Relationship between iron phosphate ratio and transmittance>
FIG. 6 shows permeation curves for various iron phosphate composites.
As a result of further examination by FIG. 6 and the present inventors, it was confirmed that the preferable iron phosphate content was 60 to 95% by mass, particularly 70 to 85% by mass, based on the entire composite.

<Comparison between composite and mixture>
The iron phosphate / iron oxide composite of Production Example 1 (iron phosphate: iron oxide ratio = about 85:15), the iron phosphate of Comparative Production Example 1 and the iron oxide of Comparative Production Example 2 are 85:15. The transmittance was compared with that of the mixture.
The results are shown in FIG. The composite had high transparency and excellent UV protection ability, whereas the mere mixture was inferior in UVA and UVB protection ability and was conspicuously colored and inferior in transparency.
From this result, simply mixing iron phosphate with tungstate, iron oxide, and silica does not exhibit excellent transparency and UV protection ability, and it must be combined as in the present invention. It was confirmed that there was.

Formulation Example 1 O / W emulsion type sunscreen Iron phosphate-containing composite of Production Example 1 12.0
2. Zinc flower 5.0
3. Stearic acid 2.0
4). Cetyl alcohol 1.0
5). Vaseline 5.0
6). Silicone oil 2.0
7). Liquid paraffin 10.0
8). Glyceryl monostearate (self-emulsifying type) 1.0
9. Polyoxyethylene (25 mol) monooleate 1.0
10. Polyethylene glycol 1500 5.0
11. Veegham 0.5
12 Purified water 55.5
13. Perfume appropriate amount14. Preservative appropriate amount

(Manufacturing method)
10 is added to 12 and after dissolution by heating, 11 is added, uniformly dispersed with a homomixer and kept at 70 ° C. (aqueous phase). 3-9 and 13, 14 are mixed, dissolved by heating and kept at 70 ° C. (oil phase). Powders 1 and 2 were added to the aqueous phase and dispersed with a homomixer. The oil phase was added thereto, and the mixture was uniformly emulsified and dispersed with a homomixer, and cooled to 35 ° C. while stirring after emulsification.

An O / W emulsion type sunscreen was obtained in the same manner as in Formulation Example 1 except that fine-particle zinc oxide was used instead of the composite of Production Example 1.
This Formulation Example 1 and Comparative Formulation Example 1 were applied on the skin, and the conspicuousness of whiteness immediately after application was judged visually.
Evaluation criteria ○: Transparency △: Some whiteness is conspicuous and little transparency ×: White is conspicuous and there is no transparency

(Table 1)
Formulation Example 1 Comparative Formulation Example 1
Transparency ○ △

  Prescription Example 1 including Production Example 1 was a sunscreen that was not noticeable in white and had a fine finish, whereas Comparative Formulation Example 1 containing fine zinc oxide was conspicuous in white and had fine particles in the preparation. The dispersibility of zinc oxide was poor and it was difficult to spread it uniformly. Therefore, it was confirmed that the cosmetic containing the composite of the present invention has high transparency and good usability compared to a cosmetic containing fine particle zinc oxide, which is a conventionally used ultraviolet protective powder.

The formulation example of the cosmetics containing the iron phosphate containing complex of this invention is further shown. All of them had high UV protection ability, high transparency, and good usability.
Formulation Example 2 Oil-based stick foundation (powder part)
1. Iron phosphate-containing complex of the present invention 8.0
2. Talc 2.8
3. Kaolin 16.0
4). Mica 3.0
5). Titanium dioxide 16.0
6). Bengala 1.0
7). Yellow iron oxide 3.0
8). Black iron oxide 0.2
(Oil phase)
9. Solid paraffin 3.0
10. Microcrystalline wax 7.0
11. Vaseline 15.0
12 Dimethylpolysiloxane 3.0
13. Squalane 5.0
14 Isopropyl palmitate 17.0
15. Antioxidant appropriate amount16. Perfume appropriate amount (Manufacturing method)
9-15 degreeC was melt | dissolved at 85 degreeC, and the powder part fully mixed with this was added, stirring. Next, it was ground and dispersed in a colloid mill. 16 was added, and after deaeration, it was poured into a container at 70 ° C. and cooled.

Formulation Example 3 Two-layer type W / O sunscreen Talc 6.0
2. Silicone-treated iron phosphate-containing composite of the present invention 12.0
3. Stearic acid-treated fine particle zinc oxide 8.0
4). Octyl methoxycinnamate 5.0
5). Liquid paraffin 1.0
6). Decamethylcyclopentasiloxane 26.8
7). Dimethylpolysiloxane 16.0
8). POE-modified dimethylpolysiloxane 2.0
9. Ion exchange water 15.0
10.1.3-Butylene glycol 8.0
11. Preservative 0.1
12 Fragrance 0.1
(Manufacturing method)
4-8 were heat-mixed at 70 degreeC (oil phase). Separately, 10 and 11 were dissolved in 9 (aqueous phase). 1-3 powders were added to the oil phase and dispersed with a homomixer. The previous aqueous phase was added to this and emulsified with a homomixer. Further, 12 was mixed and filled into a container.

Formulation Example 4 Solid powder foundation Silicone-treated talc 11.4
2. Silicone-treated mica 41.0
3. Silicone-treated titanium dioxide 10.0
4). Silicone-treated iron phosphate-containing composite of the present invention 18.0
5). Silicone-treated Bengala 1.0
6). Silicone-treated yellow iron oxide 3.0
7). Silicone-treated black iron oxide 0.2
8). Nylon powder 2.0
9. Dimethylpolysiloxane 8.5
10. Octyl methoxycinnamate 1.0
11. POE-modified dimethylpolysiloxane 0.6
12 Monooleic acid POE sorbitan 1.0
13. Isocetyl octoate 2.0
14 Ethylparaben 0.2
15. Fragrance 0.1
(Manufacturing method)
9 to 14 were dissolved by heating (oil phase). Separately, 1 to 8 were mixed with a blender and mixed with the previous oil phase. Further, 15 was sprayed and mixed uniformly. This was pulverized by a pulverizer and compression-molded into an inner dish.

Formulation Example 5 W / O type foundation Sericite 5.0
2. Kaolin 4.0
3. Titanium dioxide 6.0
4). Bengala 0.36
5). Yellow iron oxide 0.8
6). Black iron oxide 0.16
7). Iron phosphate-containing complex of the present invention 4.0
8). Liquid paraffin 5.0
9. Decamethylcyclopentasiloxane 29.0
10. POE-modified dimethylpolysiloxane 4.5
11. Ion exchange water 36.0
12.1.3-Butylene glycol 5.0
13. Preservative 0.1
14 Perfume 0.08
(Manufacturing method)
8 to 10 were dissolved by heating at 70 to 80 ° C. (oil phase). Further, 12 and 13 were dissolved in 11 (aqueous phase). 1-7 were mixed, the previous oil phase was added to this, and it mixed with the homomixer. After 14 was added and mixed, the aqueous phase was added and emulsified and filled into a container.

Formulation Example 6 Lipstick Iron phosphate-containing complex of the present invention 10.0
2. Red No. 201 0.6
3. Red No. 202 1.0
4). Red 223 0.2
5). Candelilla Row 9.0
6). Solid paraffin 8.0
7). Beeswax 5.0
8). Carnavalou 5.0
9. Lanolin 11.0
10. Castor oil 23.2
11.2-Cetyl ethylhexanoate 17.0
12 Isopropyl myristic acid ester 10.0
13. Antioxidant appropriate amount14. Perfume appropriate amount

(Manufacturing method)
1-3 were mixed with a part of 10 and subjected to roller treatment (pigment part). 4 was dissolved in a part of 10 (dye part). 5 to 13 were mixed and dissolved by heating, and then the pigment part and the dye part were added and dispersed uniformly with a homomixer. This was poured into a mold and rapidly cooled to form a stick.

It is a figure which shows the light transmittance of the iron phosphate / iron oxide composite obtained by manufacture example 1, and the iron phosphate obtained by comparative manufacture example 1. It is a figure which shows the light transmittance of the iron phosphate / iron oxide complex obtained by manufacture example 2, and the iron oxide obtained by comparative manufacture example 2. It is a figure which shows the light transmittance of the iron phosphate / iron tungstate composite_body | complex obtained in manufacture example 3. FIG. It is a figure which shows the light transmittance of the iron phosphate / calcium tungstate composite_body | complex obtained in manufacture example 4. FIG. 6 is a graph showing the light transmittance of the iron phosphate / iron oxide / silica composite obtained in Production Example 5 and the zinc phosphate / manganese phosphate composite obtained in Comparative Production Example 3. It is a figure which shows the relationship between the ratio of the iron phosphate in an iron phosphate containing composite_body | complex, and light transmittance. It is a figure which shows the light transmittance of the iron phosphate / iron oxide complex and the mixture of iron phosphate and iron oxide.

Claims (5)

Iron phosphate,
One or two selected from the group consisting of tungstate, iron oxide, and silica of one or more metals selected from the group consisting of titanium, zinc, iron, silver, cobalt, aluminum, cerium, and calcium An iron phosphate-containing composite comprising: a seed or more. The complex according to claim 1, wherein the iron phosphate content is 60 to 95 mass% with respect to the entire complex. The complex according to claim 1 or 2, wherein the complex has an average particle diameter of 10 to 100 nm. The complex according to any one of claims 1 to 3, wherein the iron phosphate-containing complex is finely dispersed in a substantially primary particle state. Cosmetics containing the iron-phosphate containing complex in any one of Claims 1-4.

Images