KR20130051676A - Composite powder for cosmetic compositions and manufacturing method thereof - Google Patents

Abstract

PURPOSE: Cosmetic composite powder with a multilayered structure, and a method for manufacturing the same are provided to block UV rays, shield skin, and to dilute pigments. CONSTITUTION: Cosmetic composite powder with a multilayered structure comprises a basal layer, an optical layer, and a coloring layer. The basal layer is formed of plate powder. The optical layer is fixed on the basal layer by physical pressurization, and contains titanium dioxide. The coloring layer is fixed on the surface of the optical layer by physical pressurization. A method for preparing the cosmetic composite powder comprises: a step of preparing the plate powder; a step of fixing the titanium dioxide on the basal layer by physical pressurization; and a step of fixing ferric oxide on the optical layer.

Description

Composite powder for cosmetics having multi-layered structure and manufacturing method thereof

The present invention relates to a cosmetic composite powder having a multi-layered structure and a method of manufacturing the same, and in particular, the cosmetic composite powder having a multi-layered structure has a three-layer structure of a base layer, an optical layer and a color layer, the optical layer is UV-blocking , A composite powder for cosmetics having a multi-layered structure, which exhibits effects such as skin concealment and dilution of a pigment, and the color tone layer imparts color to the skin to conceal the skin and impart color tone. It is about.

The global economic recession caused by the collusion of the US-based financial crisis has affected the country as a whole and has been a major blow to the cosmetics industry for many years. The economic recession has a big impact on the cosmetics industry, leading to an increase in sales of only high-priced and low-priced products, and severely low-priced products. Under these circumstances, the market for toxic functional cosmetics continues to grow. The functional cosmetics market, which continues to grow under the wind of well-being, expands the concept of makeup beyond “creation of beauty” to the concept of “skin health” and “mental health” based on it. have. This change in the purpose of make-up has attracted attention to the growth of the market due to the change in the concept of domestic make-up, even the advanced technology companies that did not have much interest in the functional cosmetics in the domestic and foreign markets. New development of functional cosmetic raw materials has been induced. This new development is being recognized as a new way for the domestic cosmetics industry.

However, most of the functional cosmetics (whitening, anti-wrinkle, sun protection) that are making a big market growth are limited to basic cosmetics. The reason why it is limited to basic cosmetics is that most functional materials are extracted or synthesized from natural products, and the result is mostly in the form of a liquid, which is suitable for the formulation of basic cosmetics. In addition, most of the substances expressing functionalities present a very high risk of expression and denaturation of cytotoxicity when they are purely present. Recently, in order to solve the problem of raw materials, the use of functional substances is avoided, and safety and derivatives are prevented. It guarantees stability. However, these functional raw material derivatives are also likely to be denatured when exposed to moisture or direct sunlight in the air, which can be poisonous to the skin, and the short shelf life is a great burden for cosmetic companies even when developing new products. For this reason, the development of functional cosmetics is a great difficulty. In order to solve this problem, most of the development of functional cosmetic raw materials are mainly the development of derivatives for stabilization and the development of new functional materials. Recently, the development of new raw materials using new functional raw materials and derivatives of existing functional raw materials has been researched mainly by domestic venture companies possessing excellent technology. However, new developed raw materials are also limited to the application aspects of basic products. However, in developed countries, mainly in Japan, the area of functional cosmetics is expanding the research area from basic products to color products.The subjects also express the skin naturally and beautifully using the characteristics of light as well as wrinkles, whitening and ultraviolet rays. In order to achieve this, the object is expanded to the powder area, such as complexing the powder. Although such research is being attempted little by little in Korea, it is mainly limited to the application of a target material for whitening, wrinkles and ultraviolet rays, which are mainly used for basic cosmetics, and the development of functional raw materials for color cosmetics is very poor. Therefore, the development of functional color cosmetics is a research field that should be preceded in terms of enhancing national competitiveness and creating high value-added cosmetics. The most urgent and fundamental part of the development of such functional color cosmetics is the development of raw materials for color cosmetics having a new concept of functionality other than whitening, wrinkles and ultraviolet rays.

In addition, considering that most of the color cosmetic raw materials are inorganic materials, development of functional raw materials using inorganic materials is not easy.

An object of the present invention is a cosmetic composite powder having a multi-layer structure has a three-layer structure of a base layer, an optical layer and a color tone layer, the optical layer exhibits effects such as UV protection, skin concealment and dilution of the pigment, the color layer The present invention provides a cosmetic composite powder having a multi-layered structure which gives a color to the skin and also conceals the skin and gives a color tone, and a manufacturing method thereof.

Cosmetic composite powder having a multi-layered structure according to the present invention is composed of a three-layer structure of the base layer, the optical layer and the color layer, the base layer is talc (talk), mica (mica), sericite, barium sulfate, Raw materials for cosmetics and foods in the shape of plates, such as plate-shaped alumina and pearl, polymethyl methacrylate (PMMA), silica, nylon, titanium dioxide (pigment class with an average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous Powder, boron nitride or a mixture of two or more thereof, wherein the optical layer fixed on the base layer comprises titanium dioxide (fine particles), zinc oxide, silicon dioxide, polymethylmethacrylate, iron oxide Or a mixture of two or more of these, and the color tone layer fixed on the optical layer includes iron oxide, zinc oxide, Lip titanium dioxide, chromium oxide, cesium oxide, ultramarine pigments or mixtures of two or more thereof, wherein the fixing of the optical layer on the surface of the base layer is by physical pressing; The fixing of the color tone layer on the surface of the optical layer is characterized by physical pressing.

The fixing of the optical layer on the surface of the base layer is effected by physical pressing, wherein either the surface of the base layer or the surface of the optical layer or the surface of the base layer and the surface of the optical layer Chicon, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myri State, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl triethoxy silane, N Lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these It may be coated with a coating agent selected from the group consisting of a mixture of

The fixing of the color tone layer on the surface of the optical layer is made by physical pressing, the surface of either the surface of the optical layer or the surface of the color layer or the surface of the optical layer and the surface of the color layer All are methicone, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate , Calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acid, ester oil, mineral oil, acrylate, triethoxylethyl polydimethylsiloxane ethyl hexyl dimethicone, dimethyl triethoxy Silane, N-lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these It may be coated with a coating agent selected from the group consisting of a mixture of

The plate powder constituting the base layer may be one having an average particle diameter within the range of 1 to 50㎛.

The titanium dioxide constituting the optical layer may have an average particle diameter within the range of 0.02 to 10㎛.

The iron oxide constituting the color tone layer may be one having an average particle diameter within the range of 0.01 to 10㎛.

The weight ratio of the optical layer fixed on the base layer may be a weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2.

The weight ratio of the color tone layer fixed on the optical layer may be a weight ratio within the range of optical layer: color tone layer = 7 to 9.99: 3 to 0.01.

In addition, the method for producing a composite powder for cosmetics having a multilayer structure according to the present invention, (1) a plate-like powder selected from the group consisting of talc, mica, mica, boron powder or a mixture of two or more thereof as a material constituting the base layer. Preparing a base layer; (2) a first fixing step of fixing titanium dioxide on the base layer by physical pressing as a material constituting the optical layer; And (3) a second fixing step of fixing iron oxide on the optical layer by physical pressure as a material constituting the color tone layer.

Before or after the first fixing step, either the surface of the base layer or the surface of the optical layer or the surface of the base layer and the surface of the optical layer may be methicone, dimethicone, hydrogen dimethicone, tree Ethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myristate, magnesium stearate, aluminum stearate, sodium Stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl methyl ethoxy silane, N-lauryl L-lysine, sodium lauryl glutamate Selected from the group consisting of ceramides or mixtures of two or more thereof A first coating step is coated with a coating agent it can be further carried out.

Before or after the second fixing step, either the surface of the optical layer or the surface of the color layer, or both the surface of the optical layer and the surface of the color layer are methicone, dimethicone, hydrogen dimethicone. , Triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myristate, magnesium stearate, aluminum stearate , Sodium stearate, group consisting of calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl triethoxy silane, N-lauryl L- Consisting of lysine, sodium lauryl glutamate, ceramide or a mixture of two or more of these The secondary coating step of coating with a coating selected from the group may be further performed.

The plate powder constituting the base layer may be one having an average particle diameter within the range of 1 to 50㎛.

The titanium dioxide constituting the optical layer may have an average particle diameter within the range of 0.02 to 10㎛.

The iron oxide constituting the color tone layer may be one having an average particle diameter within the range of 0.01 to 10㎛.

The weight ratio of the optical layer fixed on the base layer may be a weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2.

The weight ratio of the color tone layer fixed on the optical layer may be a weight ratio within the range of optical layer: color tone layer = 7 to 9.99: 3 to 0.01.

Cosmetic composite powder having a multi-layered structure according to the present invention has a three-layer structure of the base layer, the optical layer and the color tone layer, the optical layer exhibits effects such as UV protection, skin concealment and dilution of the pigment, the color layer It provides an effect of providing a cosmetic composite powder having a multi-layer structure to give a color to the skin to conceal the skin, and to give a color tone and a method for producing the same.

Figure 1 is a base layer obtained according to the present invention is a photograph taken in a magnification of 10,000 times magnified with an optical layer on the mica as a base layer obtained by scanning electron microscopy and physically pressed (fused) by mica and titanium dioxide. After that, the coating is dimethicone in an amount of 3% by weight.
FIG. 2 is a photograph taken at a magnification of 10,000 times with a scanning electron microscope on a state in which iron oxide is fixed as a tint layer on the optical layer, which is the uppermost layer in the composite powder obtained in FIG. 1. After physically pressing to fix (fusion), the coating of dimethicone in an amount of 3% by weight as a coating agent.

Hereinafter, the present invention will be described in detail with reference to specific examples.

Cosmetic composite powder having a multi-layered structure according to the present invention is composed of a three-layer structure of the base layer, the optical layer and the color layer, the base layer is talc (talk), mica (mica), sericite, barium sulfate, Raw materials for cosmetics and foods in the form of plates, such as plate-shaped alumina and pearl, polymethyl methacrylate, silica, nylon, titanium dioxide (pigment grade with an average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride or The optical layer is selected from the group consisting of two or more of these mixtures, and the optical layer fixed on the base layer is titanium dioxide (fine particles), zinc oxide, silicon dioxide, polymethyl methacrylate (PMMA), iron oxide or the like. And the color tone layer fixed on the optical layer is selected from the group consisting of two or more mixtures. Titanium oxide, chromium oxide, cesium oxide, ultramarine pigment or a mixture of two or more thereof, wherein the fixing of the optical layer on the surface of the base layer is effected by physical pressing, and The fixing of the color tone layer on the surface of the optical layer is characterized by physical pressing.

The base layer functions as a support on which titanium dioxide constituting the optical layer or iron oxide constituting a color tone layer fixed on the optical layer is fixed. The base layer is talc (talc), mica (mica), sericite, barium sulfate, plate alumina, pearl, such as plate-like cosmetics and food raw materials, polymethyl methacrylate, silica, nylon, titanium dioxide (average particle diameter 300 nm pigment grade), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride, or a plate-like powder selected from the group consisting of two or more thereof, which are already widely used as cosmetic inorganic pigments. It is an inorganic material with enough stability to be established. The plate powders used in cosmetics are mostly laminated inorganic materials and have been widely used as extender pigments for cosmetics since they have excellent softness and spreadability. However, the lack of gloss and transparency of the plate powder itself, and the use of more than a certain amount has a disadvantage that causes dullness. In the present invention, in order to solve the disadvantages of the plate-like powder, the titanium dioxide constituting the optical layer as described above and the iron oxide constituting the color tone layer are fixed on the base layer made of the plate-like powder by physical pressure to complete the composite powder. It is early.

In the above, the fixing by the physical press is called the 'mechano fusion method', and is a method of performing the complexation between inorganic and inorganic materials, and the physical force (pressure) by a dry mechanical method. It means to add two or more kinds of fine particles by adding. In this case, it is a coating method in which the shell particles (particles of the material constituting the optical layer or the color layer) are physically strongly bonded to the surface of the core particles (core particles, etc.) of the two particles, Afterwards, a surface treatment agent such as fatty acid, silicone, ester oil, fluorine compound, etc. may be coated on the surface to prevent the compounding from being dismantled by external chemical or physical impact.

The optical layer physically fixed on the base layer is made of titanium dioxide, and functions to exhibit effects such as UV blocking, skin concealment, and dilution of pigments.

The tonal layer physically fixed on the optical layer is made of iron oxide, and gives a color to the skin, which also functions to conceal the skin and give a tone.

Therefore, the composite powder according to the present invention obtained by the above-described configuration overcomes the disadvantages such as lack of gloss and transparency of the plate-shaped powder and the unnatural makeup of titanium oxide and imparting a dull color tone of iron oxide. Each of the raw materials has a feature that can not be realized, that is, a photosensitive powder that changes color as the light source changes.

The fixing of the optical layer on the surface of the base layer is effected by physical pressing, wherein either the surface of the base layer or the surface of the optical layer or the surface of the base layer and the surface of the optical layer Chicon, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myri State, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl triethoxy silane, N Lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these Coating with a coating agent selected from the group consisting of a mixture may be further included. The coating with such a coating serves to prevent the composite powder obtained according to the present invention from being disassembled by the external chemical and physical impact.

Similarly, the fixing of the color tone layer on the surface of the optical layer is made by physical pressing, and either the surface of the optical layer or the surface of the color tone layer or the surface of the optical layer and the color tone layer All surfaces are methicone, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myricorn State, calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxane ethyl hexyl dimethicone, dimethyl methyl Oxy silane, N-lauryl L-lysine, sodium lauryl glutamate, ceramide or Is the out of which is coated with a coating agent selected from the group consisting of a mixture of two or more may be further included. The coating with such a coating serves to prevent the composite powder obtained according to the present invention from being disassembled by the external chemical and physical impact.

The plate powder constituting the base layer may be one having an average particle diameter within the range of 1㎛ 50㎛. When the average particle diameter of the platelet powder is less than 1㎛, there may be a problem that the powder particle size is too small to function as the platelet powder, when the platelet powder exceeds 50㎛, the platelet powder is broken according to the present invention There may be a problem that the obtained composite powder is destroyed, and also outside the above range, there is a problem that the coating efficiency is lowered and the feeling of use varies greatly, and there are many differences in softness, spreadability and transparency, which are important characteristics required for cosmetics. Problems that arise can also arise.

The titanium dioxide constituting the optical layer may have an average particle diameter within the range of 0.02 to 1㎛. When the average particle diameter of the titanium dioxide is less than 0.02㎛, there may be a problem that the UV blocking effect is lowered, UV absorption is progressed, scattering phenomenon occurs, if the thickness exceeds 1㎛, on the contrary, Occurrence of turbidity may be a problem that proper powder processing is difficult.

The iron oxide constituting the color tone layer may be one having an average particle diameter within the range of 0.01 to 10㎛. When the average particle diameter of the iron oxide is less than 0.01㎛, there may be a problem that agglomeration occurs, on the contrary, when the average particle diameter exceeds 10㎛, the coating efficiency is lowered and a dull color tone appears, so there may be a problem that the functionality is lowered have.

The weight ratio of the optical layer fixed on the base layer may be a weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2. Titanium dioxide constituting the optical layer is used for various purposes, such as UV protection, concealment of skin defects, dilution of the pigment, etc., but when used in an excess amount outside the range of the weight ratio as described above, that is, 2 to 4, unnatural makeup There may be a problem that causes the problem, on the contrary, when used in an excessively small amount, the composite powder obtained according to the present invention may have a problem that the characteristic as a photosensitive powder whose color changes as the light source changes is insufficient.

The weight ratio of the color tone layer fixed on the optical layer may be a weight ratio within the range of optical layer: color tone layer = 7 to 9.99: 3 to 0.01. Since the iron oxide constituting the color tone layer has an inherent property of color tone addition, the color saturation is not high, so that it is outside the weight ratio within the range of the weight ratio as described above, that is, the optical layer: color tone layer = 7 to 9.99: 3 to 0.01. When used in excess, there may be a problem that a dull color tone is exhibited, on the contrary, when used in an excessive amount, there may be a problem that color impartment by the composite powder obtained according to the present invention may not be sufficient (? Please make sure this is appropriate).

In addition, the manufacturing method of the cosmetic composite powder having a multi-layered structure according to the present invention, (1) as a material constituting the base layer talc (talk), mica (mica), sericite, barium sulfate, plate-like alumina, pearl Raw materials for cosmetics and foods in the shape of plates, polymethyl methacrylate, silica, nylon, titanium dioxide (pigment class with an average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride or two or more of these A base layer preparation step of preparing a plate powder selected from the group consisting of a mixture; (2) a first fixing step of fixing titanium dioxide on the base layer by physical pressing as a material constituting the optical layer; And (3) a second fixing step of fixing iron oxide on the optical layer by physical pressure as a material constituting the color tone layer.

In the above, the fixing by the physical press is called the 'mechano fusion method', and is a method of performing the complexation between inorganic and inorganic materials, and the physical force (pressure) by a dry mechanical method. It means to add two or more kinds of fine particles by adding. In this case, it is a coating method in which the shell particles (particles of the material constituting the optical layer or the color layer) are physically strongly bonded to the surface of the core particles (core particles, etc.) of the two particles, Afterwards, a surface treatment agent such as fatty acid, silicone, ester oil, fluorine compound, etc. may be coated on the surface to prevent the compounding from being dismantled by external chemical or physical impact.

The base layer preparation step (1) is to prepare a plate-like powder constituting the base layer, the plate-like powder is talc (talc), mica (mica), sericite, barium sulfate, plate alumina, pearl, etc. Raw materials for cosmetics and foods in plate shape, polymethyl methacrylate, silica, nylon, titanium dioxide (pigment grade with average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride or a mixture of two or more thereof It may be selected from the group consisting of, the plate-like powder may preferably be one having an average particle diameter within the range of 1 to 50㎛.

The first fixing step of (2) consists of fixing titanium dioxide as a material constituting the optical layer by physical pressing on the base layer. The titanium dioxide may be preferably one having an average particle diameter within the range of 0.02 to 10㎛.

The second fixing step of (3) consists of fixing iron oxide on the optical layer by physical pressing as a material constituting the color tone layer. The iron oxide may be preferably one having an average particle diameter within the range of 0.01 to 10㎛.

The fixing of the optical layer on the surface of the base layer is effected by physical pressing, wherein either the surface of the base layer or the surface of the optical layer or the surface of the base layer and the surface of the optical layer Chicon, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myri State, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl triethoxy silane, N Lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these The first coating step may be further coated with a coating selected from the group consisting of a mixture of. The composite powder obtained according to the present invention by the coating with the coating agent by the first coating step can be prevented from being disassembled by the external chemical, physical impact.

The fixing of the color tone layer on the surface of the optical layer is made by physical pressing, the surface of either the surface of the optical layer or the surface of the color layer or the surface of the optical layer and the surface of the color layer All are methicone, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate , Calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acid, ester oil, mineral oil, acrylate, triethoxylethyl polydimethylsiloxane ethyl hexyl dimethicone, dimethyl triethoxy Silane, N-lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these The secondary coating step may be further coated with a coating selected from the group consisting of a mixture of. The composite powder obtained according to the present invention by the coating with the coating agent by the secondary coating step can be prevented from being disassembled by the external chemical, physical impact.

The weight ratio of the optical layer fixed on the base layer may be a weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2, the dioxide constituting the optical layer with respect to the plate powder constituting the base layer. Limitation of the above range on the amount of titanium used is as described above, and repeated descriptions will be omitted.

The weight ratio of the color tone layer fixed on the optical layer may be a weight ratio within the range of optical layer: color tone layer = 7 to 9.99: 3 to 0.01, the color layer to the titanium dioxide constituting the optical layer Limitation of the above range on the amount of the iron oxide constituting is as described above, and repeated descriptions will be avoided.

By the composition as described above, the complex of titanium oxide and iron oxide on the surface of the plate-like powder having excellent spreading and soft feeling of use is doubled to solve the shortcomings of each inorganic pigment and express the high functionality of the light sensitivity that the color changes according to the light source. It becomes possible to manufacture the raw material for coloring cosmetics to make.

The composite powder according to the present invention obtained as described above has a new concept of inorganic / inorganic compounding that extends the area of functional color cosmetics beyond the emotional aspects of raw materials before compounding through reflection, transmission, and scattering of light. It is effective to provide a functional inorganic composite powder.

In addition, the composite powder according to the present invention as described above can be used for the development and manufacture of color cosmetics such as two-way cake, powder pact, face powder, foundation, makeup base, BB cream and the like.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

Example  1 to 6 and Comparative example  1 to 4

Mica having an average particle diameter of 10 μm is used as the plate-like powder constituting the base layer, pigment grade titanium dioxide having an average particle diameter of 300 nm and fine particle titanium dioxide having an average particle diameter of 30 nm are used as the material constituting the optical layer. Iron oxide having an average particle diameter of 2 µm was selected and used as a material constituting the color tone layer.

First, the composite was fixed and fixed by titanium dioxide on the plate powder for about 1 hour by physical pressurization, the weight ratio of the plate powder: titanium dioxide is shown in Table 1 for the pigment grade titanium dioxide and fine titanium dioxide, respectively The ratio, ie, the ratio of 9: 1 to 5: 5, was evaluated by using analytical equipment such as SEM to evaluate the optimum coating state and usability of titanium dioxide in platelet powder. The complexation ratio of titanium was determined.

division mica Titanium dioxide Judgment result Pigment grade Particulate Comparative Example 1 9 One Bad Comparative Example 2 9 One Bad Example 1 8 2 Good Example 2 8 2 Good Example 3 7 3 Good Example 4 7 3 Great Example 5 6 4 Good Example 6 6 4 Good Comparative Example 3 5 5 Bad Comparative Example 4 5 5 Bad  Unit: weight ratio

When performing the compounding according to the ratio shown in Table 1, the case of Example 4 showed the optimal state, Examples 1 to 3 and Examples 5 to 6 represented the appropriate state, Comparative Examples 1 to 4 Showed a poor state compared to the above embodiments.

Example  11

On the basis of Example 4, the mica: titanium dioxide was mixed in a weight ratio of 7: 3, and before the compounding, dimethicone was used as a coating agent on the surface of the mica and the titanium dioxide, based on the total weight of the mica and titanium dioxide. The mixture was mixed in an amount of 3% by weight, and the coating was carried out by stirring to carry out the same complexing as in Example 1 above.

Example  12

With the results obtained in Example 4 and Example 11, an experiment was subsequently carried out to further complex iron oxide. Iron oxide having an average particle diameter of 2 μm on the resultant obtained in Example 4 was carried out by the same compounding method as that of Example 1, to obtain a composite powder according to the present invention.

Example  13

3% by weight of dimethicone, based on the total weight of the mica and titanium dioxide, as a coating agent on the surface of the resultant obtained in Example 4 and the surface of the iron oxide prior to complexing the resultant obtained in Example 4 with the iron oxide The mixture was mixed in an amount and stirred to carry out the coating, followed by the same complexing as in Example 1 to obtain a composite powder according to the present invention.

When tested according to the analysis and sensory evaluation by conventional analytical equipment, compared with inorganic-inorganic composite powder, the ratio of surface coating coated from 9: 1 to 5: 5 ratio depends on the specific surface area of the core, As the ratio of shell is 10 to 50% by weight, the effect of less than 10% by weight is insignificant, and the amount exceeding 50% by weight is too excessive for the coating area, so coating efficiency is not good. Significantly lowered. When the mica: titanium dioxide weight ratio of the present invention is 7: 3 to be composited through physical pressurization, the nano-sized pigment particles (shell particles) are complexed to the surface of the sieving pigment (core particles) to have nano-sized pigment particles. Functionality is provided to prevent the reaggregation of the (shell particles) and the absorption into the human body, while at the same time fully exhibiting the function as a pigment. In particular, mica is the most used among the foundation group with the largest market share among color cosmetics and has advantages such as smooth usability and excellent spreadability, but has high glossiness when used in excess, problems in formability, and fine particle titanium dioxide has a refractive index. It has excellent UV protection effect and can complement the shine and formability of mica due to its size. Iron oxide is widely used as a pigment in cosmetics, but when used too much, it has a disadvantage of dull color with high saturation. However, in the composite powders obtained according to the present invention as described above, it is possible to solve the above disadvantages by complexing them as one composite powder, and according to the present invention, the characteristics that cannot be realized with each raw material, that is, a light source As a photosensitive powder whose color changes with this change With cosmetic raw materials, in particular there is an effect to provide a composite powder suitable for use as a raw material for color cosmetics.

In particular, according to the present invention, the complexing by conventional wet coating takes about 3 days due to the reaction characteristics of the plate powder and the titanium oxide solution, drying and grinding, and uses acid and base during the reaction process. Therefore, there is a problem such as waste water generation, and compared with the disadvantage of being unsuitable for natural, environmentally friendly market trends, in the present invention, the compounding time is very short and easy as the complexing time is about 1 hour and the chemical upon reaction It has the advantage of providing a complexing process suitable for market trends since no material is used at all.

In addition, in the present invention, in order to prevent complex dismantling due to chemical and physical impacts, it is possible to use a coating with a coating agent in consideration of compounding strength, texture of use, economic efficiency, etc., and thus general foundations after complexation of plate powder, titanium dioxide and iron oxide. Based on the physical and chemical impacts applied during the mixing, grinding, shaping, molding, or high-temperature emulsification processes during the manufacture of cosmetics, the conditions before and after impacts are compared before and after impacts. In the case of the composite powder coated with the coating agent according to the present invention, it was confirmed that the composite powder was chemically adsorbed on the surface of the composite powder and thus exhibits very strong resistance to chemical and physical impacts. In particular, the silicone as a coating agent has been used as the most common coating agent (surface treatment agent) in the cosmetic field has the advantage that the economical efficiency and the texture of use has also been verified.

The present invention can be used in the field of manufacturing cosmetics.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

(Not drawing)

Claims (16)

It consists of a three-layer structure of a base layer, an optical layer and a color layer, wherein the base layer is a plate-like cosmetics and food raw materials such as talc, mica, sericite, barium sulfate, plate alumina, pearl, Polymethylmethacrylate, silica, nylon, titanium dioxide (pigment class with average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride, or a mixture of two or more thereof. And the optical layer fixed on the base layer is made of titanium dioxide, and the color tone layer fixed on the optical layer is made of iron oxide, wherein the fixing of the optical layer on the surface of the base layer is physical Phosphorus pressurization, and the fixing of the color tone layer on the surface of the optical layer is characterized by physical pressurization. Cosmetic composite powder having a layer structure. The method of claim 1,
The fixing of the optical layer on the surface of the base layer is effected by physical pressing, wherein either the surface of the base layer or the surface of the optical layer or the surface of the base layer and the surface of the optical layer Chicon, dimethicone , hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myri State, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl triethoxy silane, N Lauryl L-lysine, sodium lauryl glutamate, ceramide or two of them Cosmetic composite powders for having a multi-layer structure, characterized in that the mixture is coated with a coating agent selected from the group consisting of. The method of claim 1,
The fixing of the color tone layer on the surface of the optical layer is made by physical pressing, the surface of either the surface of the optical layer or the surface of the color layer or the surface of the optical layer and the surface of the color layer All are methicone, dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate , Calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino acid, ester oil, mineral oil, acrylate, triethoxylethyl polydimethylsiloxane ethyl hexyl dimethicone, dimethyl triethoxy Silane, N-lauryl L-lysine, sodium lauryl glutamate, ceramide or two or more of these Cosmetic composite powder having a multi-layer structure, characterized in that the coating is selected from the group consisting of a mixture of. The method of claim 1,
The plate-like powder constituting the base layer is a cosmetic composite powder having a multi-layer structure, characterized in that it has an average particle diameter within the range of 1 to 50㎛. The method of claim 1,
The titanium dioxide constituting the optical layer is a cosmetic composite powder having a multi-layer structure, characterized in that it has an average particle diameter within the range of 0.02 to 10㎛. The method of claim 1,
The iron oxide constituting the color tone layer has a multi-layered cosmetic composite powder, characterized in that it has an average particle diameter within the range of 0.01 to 10㎛. The method of claim 1,
The weight ratio of the optical layer fixed on the base layer is a cosmetic composite powder having a multi-layer structure, characterized in that the weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2. The method of claim 1,
The weight ratio of the color tone layer fixed on the optical layer is a cosmetic composite powder having a multilayer structure, characterized in that the weight ratio within the range of the optical layer: color tone layer = 7 to 9.99: 3 to 0.01. (1) Plate-like cosmetics and food raw materials such as talc, talc, mica, sericite, barium sulfate, flaky alumina, and pearl, polymethyl methacrylate, silica and nylon A base layer preparation step of preparing a platelet powder selected from the group consisting of titanium dioxide (pigment grade having an average particle diameter of 300 nm), silicon dioxide, silicon powder, spherical amorphous powder, boron nitride or a mixture of two or more thereof;
(2) a first fixing step of fixing titanium dioxide on the base layer by physical pressing as a material constituting the optical layer; And
(3) a second fixing step of fixing iron oxide on the optical layer by physical pressing as a material constituting the color tone layer;
Method for producing a composite powder for cosmetics having a multi-layer structure, characterized in that comprises a. The method of claim 9,
Before or after the first fixing step, either the surface of the base layer or the surface of the optical layer, or the surface of the base layer and the surface of the optical layer are methicone, hydrogen dimethicone, dimethicone, tree Ethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myristate, magnesium stearate, aluminum stearate, sodium Stearate, calcium stearate, amino acids, ester oils, mineral oils, acrylates, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl methyl ethoxy silane, N-lauryl L-lysine, sodium lauryl glutamate Selected from the group consisting of ceramides or mixtures of two or more thereof Method of producing a composite cosmetic powder for the first coating step is coated with a coating having a multilayer structure further characterized carried out. The method of claim 9,
Before or after the second fixing step, either the surface of the optical layer or the surface of the color layer, or both the surface of the optical layer and the surface of the color layer are methicone, dimethicone, hydrogen dimethicone. , Triethoxycaprylylsilane, branched silicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyl dimethicone, magnesium misstate, aluminum myristate, sodium myristate, calcium myristate, magnesium stearate, aluminum stearate , Sodium stearate, calcium stearate, amino acid, ester oil, mineral oil, acrylate, triethoxylethyl polydimethylsiloxaneethyl hexyl dimethicone, dimethyl methyl ethoxy silane, N-lauryl L-lysine, sodium la Selected from the group consisting of glutamate, ceramide or mixtures of two or more thereof Method of producing a composite cosmetic powder for the second coating step is coated with a coating having a multilayer structure further characterized carried out. The method of claim 9,
The plate-shaped powder constituting the base layer has a multi-layered cosmetic cosmetic powder, characterized in that it has an average particle diameter within the range of 1 to 50㎛. The method of claim 9,
The titanium dioxide constituting the optical layer is a method for producing a composite powder for a cosmetic having a multilayer structure, characterized in that it has an average particle diameter within the range of 0.02 to 10㎛. The method of claim 9,
The iron oxide constituting the color tone layer is a method for producing a composite powder for cosmetics having a multilayer structure, characterized in that it has an average particle diameter within the range of 0.01 to 10㎛. The method of claim 9,
The weight ratio of the optical layer is fixed on the base layer is a manufacturing method of the cosmetic composite powder having a multi-layer structure, characterized in that the weight ratio within the range of the base layer: optical layer = 6 to 8: 4 to 2. The method of claim 9,
The weight ratio of the color layer fixed on the optical layer is a manufacturing method of the cosmetic composite powder having a multi-layer structure, characterized in that the weight ratio within the range of the optical layer: color tone layer = 7 to 9.99: 3 to 0.01.

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