KR102163095B1 - Functional cosmetic composition - Google Patents

Abstract

The functional cosmetic composition according to the present invention contains a down-conversion phosphor material that is excited from ultraviolet rays and emits red visible light or infrared rays, so that it has the effect of blocking ultraviolet rays, skin care, scalp protection, promoting blood circulation of the scalp and preventing hair loss. I can.

Description

Functional cosmetic composition {FUNCTIONAL COSMETIC COMPOSITION}

The present invention relates to a functional cosmetic composition, and more particularly, to a functional cosmetic composition containing a phosphor material having UV protection, skin care, scalp protection, scalp blood circulation promotion and hair loss prevention effect.

When the skin is exposed to ultraviolet rays, the photoaging phenomenon promotes the generation of erythema due to irritation, melanin pigmentation, and blemishes (progression of blackening). In order to prevent this, the UV rays directly reach the skin by creating a blocking film using cosmetics containing sun protection functional ingredients.

The UV-blocking functional component can be classified into an ultraviolet absorber, a material that chemically absorbs light energy, and an ultraviolet scattering agent, which is a material that physically scatters and reflects light, and these are collectively referred to as sunscreen.

Ultraviolet absorbers are also called organic sunscreens, and conventionally used organic sunscreens include ethylhexylmethoxycinnamate, avobenzone (butylmethoxydibenzoylmethane), and oxybenzone (benzophenone-3).

However, most organic sunscreens can irritate the skin, so it is better to avoid organic sunscreens for sensitive skin, and countries have set maximum allowable values for organic sunscreens. In particular, benzophenone-3 is a component that requires special attention as the risk of causing allergies and respiratory disorders has been reported. When avobenzone meets sunlight, it generates free radicals and causes DNA damage, and it is reported that there is a possibility of cancer formation. In addition, organic sunscreens, such as oxybenzone and octinosate, are known to cause environmental pollution, such as causing whitening of corals living in the sea, and thus, their use is currently being restricted.

Ultraviolet scattering agents are also called inorganic sunscreens, and organic blockers absorb ultraviolet rays as the main function, whereas inorganic blockers absorb ultraviolet rays shorter than the bandgap of inorganic substances while scattering and reflecting ultraviolet rays are the main functions to protect ultraviolet rays in a wide wavelength range. And because of its high safety, interest has recently been increasing.

Inorganic sunscreens that are mainly used in the related art include titanium dioxide (TiO ₂ ) or zinc oxide (ZnO), and the content of the sunscreen is different depending on the sun protection factor (SPF).

However, conventional inorganic sunscreens have low formulation stability, white turbidity, poor usability, and agglomeration in the emulsion.

On the other hand, recently, red visible light, which is known to have effects such as delaying aging, improving wrinkles, skin whitening, scalp protection, promoting scalp blood circulation, and preventing hair loss, to improve skin anti-aging and skin condition. The spread of skin care devices and infrared scalp care devices that emit infrared rays is expanding. However, conventional skin care devices and scalp care devices have a problem that it is difficult to carry because they are provided as separate devices, and it is necessary to separately use a sunscreen and a skin care device or a scalp care device for the protection and beauty of the skin or scalp. There is a problem.

Korean Patent Registration No. 10-1063463 Korean Patent Registration No. 10-1410043

One aspect of the present invention provides a functional cosmetic composition capable of simultaneously providing UV protection, skin care, scalp protection, scalp blood circulation promotion and hair loss prevention effects as one cosmetic product.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The functional cosmetic composition according to an embodiment of the present invention contains a down conversion phosphor material that is excited from ultraviolet rays and emits red visible light or infrared rays.

The photon down-conversion phosphor material may be an inorganic ceramic phosphor powder.

The ceramic phosphor may be any one of a Y ₂ O ₂ S:Eu phosphor or a Y ₂ O ₃ :Eu phosphor.

The photon down-conversion phosphor material may be an organic phosphor material.

The organic phosphors are Poly(1,4-phenylene vinylene), Poly(thiophenes), Poly(2,5-pyridinevinylene), Polyfluorenes, BODIPY (boron-dipyrromethene) fluorophore, dithienotropylium, aminobenzopyrano-xanthene, poly(2-methhoxy- It may be any one of 5-(2-ethylhexyloxy)-1,4-pheneylenevinylene) and Poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene].

In addition, the functional cosmetic composition according to another embodiment of the present invention contains an up conversion phosphor material that is excited from infrared or far infrared to emit red visible or infrared.

The photon up-conversion phosphor material may be an inorganic phosphor powder.

The inorganic phosphor may be any one of NaYF ₄ :Er ^{3 +} , NaYF ₄ :Yb ^{3 +} and NaYF ₄ :Tm ^{3 +} .

According to one aspect of the present invention described above, a phosphor material that converts ultraviolet rays into infrared rays is used as a raw material for a sunscreen for the skin, thereby blocking ultraviolet rays harmful to the skin, while emitting infrared rays beneficial to the skin, scalp, and hair.

1 is a graph showing ultraviolet absorption wavelength and absorption intensity of Y ₂ O ₂ S:Eu ceramic phosphor powder.
2 is a graph showing the emission wavelength and emission intensity of Y ₂ O ₂ S:Eu ceramic phosphor powder.
3 is a graph showing the ultraviolet absorption wavelength and absorption intensity of Y ₂ O ₃ :Eu ceramic phosphor powder.
4 is a graph showing the emission wavelength and emission intensity of Y ₂ O ₃ :Eu ceramic phosphor powder.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described later refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

The functional cosmetic composition according to an exemplary embodiment of the present invention may be a cosmetic composition having a UV-blocking effect and a skin beauty effect by containing a certain amount of a down-conversion phosphor.

Here, downconversion refers to an interaction between a photon and a medium that absorbs light (photons) having a high energy wavelength and emit light having a low energy wavelength. That is, the down-conversion phosphor can be a phosphor that absorbs ultraviolet rays having a high energy wavelength among sunlight when irradiated with sunlight, and emits visible or infrared rays having an energy wavelength lower than that of ultraviolet rays by being excited from the absorbed ultraviolet rays. have.

The down-conversion phosphor according to the present invention may be any one of an inorganic type ceramic phosphor or an organic phosphor material.

The inorganic ceramic phosphor may include a Y ₂ O ₂ S:Eu phosphor or a Y ₂ O ₃ :Eu phosphor. That is, the functional cosmetic composition according to an embodiment of the present invention may be a cosmetic composition containing a down-conversion phosphor of any one of a Y ₂ O ₂ S:Eu phosphor or a Y ₂ O ₃ :Eu phosphor in a powder form.

The Y ₂ O ₂ S:Eu ceramic phosphor is a structure doped with europium (Eu) as an activator in Y ₂ O ₂ S. Y ₂ O ₂ S:Eu ceramic phosphor powder is a down-conversion phosphor that absorbs ultraviolet rays with a wavelength of about 220 to 400 nm and emits red visible rays (630 nm = 1.97 eV) and infrared rays (713 nm = 1.74 eV). In this regard, it will be described with reference to FIGS. 1 and 2 together.

1 and 2 are graphs showing down-conversion characteristics of Y ₂ O ₂ S:Eu ceramic phosphor powder. 1 is Y ₂ O ₂ S: Eu a graph showing the UV absorption wavelength and absorption strength of the ceramic phosphor powders, Figure 2 is Y ₂ O ₂ S: a graph showing the emission wavelength and the emission intensity of the Eu phosphor ceramic powder.

As shown in FIG. 1, the Y ₂ O ₂ S:Eu ceramic phosphor powder absorbs ultraviolet rays having a wavelength of about 220 to 400 nm, specifically ultraviolet A (UVA) in the range of 315 to 400 nm, and ultraviolet rays in the range of 280 to 315 nm. It can evenly absorb B (UVB) and ultraviolet C (UVC) in the range of 100 to 280 nm.

In particular, the Y ₂ O ₂ S:Eu ceramic phosphor powder can very effectively absorb light having a wavelength of about 360 nm, which is a UVA range that easily passes through windows or automobile glass, as shown. Absorption of light means that it does not transmit light, that is, it blocks light of that wavelength. The functional cosmetic composition according to an embodiment of the present invention containing the Y ₂ O ₂ S:Eu ceramic phosphor powder can be expected to have an excellent UV blocking effect.

In addition, as shown in FIG. 2, the Y ₂ O ₂ S:Eu ceramic phosphor powder is excited from the absorbed ultraviolet rays, and not only the main emission wavelength of about 630 nm (red visible light) but also the long wavelength of 713 nm wavelength (infrared rays) By emitting light together, it can be seen that the infrared emission effect is excellent.

If the skin or scalp is periodically exposed to long wavelength light with low energy, such as red visible or near-infrared rays having a wavelength in the 630nm to 850nm band, the skin becomes brighter and elasticity increases, reducing wrinkles and reducing blood circulation of the scalp. As positive clinical trial results, such as protecting the scalp and preventing hair loss, are announced, cosmetics, skin care devices, and scalp care devices for skin care, skin tone improvement, scalp care or scalp protection are spreading. have.

In the case of a cosmetic composition containing only zinc oxide (ZnO) and titanium dioxide (TiO ₂ ), which are used as main raw materials for conventional sunscreens, only a simple sunscreen effect can be obtained.

On the other hand, in the case of functional cosmetics containing Y ₂ O ₂ S:Eu ceramic phosphor powder or Y ₂ O ₃ :Eu phosphor powder to be described later according to an embodiment of the present invention, the phosphor powder absorbs ultraviolet rays and emits infrared wavelengths. , When applied to the skin, it not only blocks ultraviolet rays, but also induces skin blood circulation and activation of skin tissues to promote effects such as aging delay, wrinkle improvement, and skin whitening, and when applied to the scalp, scalp blood circulation and scalp tissue There is an advantage that it can protect the scalp and hair such as preventing hair loss by inducing activation of In particular, the functional cosmetic composition containing Y ₂ O ₂ S:Eu ceramic phosphor powder can obtain antibacterial and disinfecting effects due to the sulfur (S) component contained in the Y ₂ O ₂ S:Eu ceramic phosphor.

The Y ₂ O ₃ :Eu ceramic phosphor powder is a structure in which europium (Eu) is doped as an activator in yttrium trioxide (Y ₂ O ₃ ). In this regard, it will be described with reference to FIGS. 3 and 4 together.

3 and 4 are graphs showing down-conversion characteristics of Y ₂ O ₃ :Eu ceramic phosphor powder. Figure 3 is a Y ₂ O _3: Eu a graph showing the UV absorption wavelength and absorption strength of the ceramic phosphor powders, and FIG. 4 is Y ₂ O _3: a graph showing the emission wavelength and the emission intensity of the Eu phosphor ceramic powder.

As shown in FIG. 3, the Y ₂ O ₃ :Eu ceramic phosphor powder can absorb ultraviolet rays of wavelengths ranging from about 200 to 280 nm and 300 to 420 nm, and in particular, Y ₂ O ₂ S described above with reference to FIG. 1 : It can be seen that the absorption ability of ultraviolet C (UVC) is superior compared to the Eu ceramic phosphor powder.

In addition, as shown in FIG. 4, the Y ₂ O ₃ :Eu ceramic phosphor powder may emit absorbed ultraviolet rays at a wavelength of red visible light (615 nm = 2.02 eV).

On the other hand, organic phosphors are PPV (Poly(1,4-phenylene vinylene)), Poly(thiophenes), Poly(2,5-pyridinevinylene), PFO (Polyfluorenes), BODIPY (boron-dipyrromethene) fluorophore, dithienotropylium, ABPX (aminobenzopyrano). -xanthene) and MEH-PPV (poly(2-methhoxy-5-(2-ethylhexyloxy)-1,4-pheneylenevinylene)) derived from PPV and MDMO-PPV (Poly[2-methoxy-5-( It may be any one of 3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene]).

That is, the functional cosmetic composition according to an embodiment of the present invention may be a cosmetic composition containing any one of the above-described organic phosphors in the form of a powder. However, the type of the organic phosphor is not limited to the above example, and may further include various organic materials that emit red visible light or near infrared light.

As described above, the Y ₂ O ₂ S:Eu ceramic phosphor powder or Y ₂ O ₃ :Eu ceramic phosphor powder contained in the functional cosmetic composition according to an embodiment of the present invention absorbs ultraviolet rays, which is a relatively high energy wavelength, and thus has relatively low energy. It can emit red visible light or infrared light as a wavelength. Accordingly, when the functional cosmetic composition according to an embodiment of the present invention is applied to the skin or scalp, ultraviolet rays irradiated to the skin or scalp are absorbed and blocked, while the absorbed ultraviolet rays are converted into red visible or infrared rays and emitted. It can have a skin beauty effect, a scalp and a hair protection effect.

On the other hand, the down-conversion phosphor powder (Y ₂ O ₂ S:Eu ceramic phosphor powder or Y ₂ O ₃ :Eu phosphor powder) contained in the sunscreen of the functional cosmetic composition according to the present invention is 0.1 to the total weight of the functional cosmetic composition. It may have a content of 99wt%. In another embodiment, the down-conversion phosphor powder (Y ₂ O ₂ S:Eu ceramic phosphor powder or Y ₂ O ₃ :Eu phosphor powder) is 20 to 60 wt%, 30 to 50 wt%, etc., based on the total weight of the functional cosmetic composition. The content can be changed accordingly.

In cosmetics with a conventional sun protection function, the content of sunscreen depends on the sun protection factor (SPF).For example, when the SPF is 20, conventional sunscreens such as ZnO or TiO ₂ are about It is added in about 20wt%. When the content of the sunscreen agent is less than 10wt%, it is difficult to expect the effect of blocking ultraviolet rays and emitting infrared rays, and when the content of the sunscreen agent exceeds 70wt%, it is difficult to contain additives for the formulation of the cosmetic composition described below. It may have a range of 10 to 70wt% based on the total weight.

The sunscreen contained in the functional cosmetic composition according to an embodiment of the present invention may be in a form in which the down-conversion phosphor powder described above is used alone, or a down-conversion phosphor powder and a conventional sunscreen agent such as ZnO or TiO ₂ are mixed. have.

At this time, since the down-conversion phosphor powder according to an embodiment of the present invention has a specific gravity different from that of a conventional sunscreen such as ZnO or TiO ₂ , down-conversion to have the same sunscreen effect as a cosmetic composition containing a conventional sunscreen agent The content of the fluorescent agent powder relative to the weight may be adjusted.

In addition, the functional cosmetic composition according to the present invention includes purified water, oil (coconut oil, essence oil, sunflower oil, etc.), surfactants, shea butter, moisturizers, chelating agents, etc. to suit the formulation or purpose of use of cosmetics. It may further include a pigment, fatty acid, antioxidant, wax, pH adjuster, incense burner, preservative, at least one of a neutralizing agent, or a mixture composed of at least two of these substances.

In addition, cosmetic compositions are not only products for sun protection, but also all powder-based products (such as makeup compacts, shades and shadows) or foam cleansers, body cleansers, liquid soaps, solid soaps, shampoos, rinses, foam baths, It can be applied as a cosmetic ingredient such as bath oil, scrub, massage cream, essence, serum, ointment, oil, pack, lotion, cream or cleansing water, and the mixing amount of each component can be adjusted according to the purpose of use.

Hereinafter, the configuration of the present invention and effects thereof will be described in more detail through specific examples and comparative examples. However, these examples are for explaining the present invention more specifically, and the scope of the present invention is not limited to these examples.

[Example 1]

Y ₂ O ₂ S:Eu phosphor is pulverized to pulverize Y ₂ O ₂ S:Eu phosphor, and accordingly, Y ₂ O ₂ S:Eu phosphor powder 20 wt%, oil component (coconut oil, essence oil, sunflower oil) A cosmetic composition was prepared by mixing 15 wt%, wax component (beeswax) 7 wt%, glycerin 2 wt%, nonionic surfactant PG-10 dimethicone 2 wt%, other additives (fragrance, preservatives, colorants) and the remaining amount of purified water. , This was taken as Example 1.

[Example 2]

It was prepared in the same manner as in Example 1, but a cosmetic composition was prepared by mixing 20 wt% of Y ₂ O ₃ :Eu phosphor powder instead of Y ₂ O ₂ S:Eu phosphor powder, and this was set as Example 2.

[Example 3]

Embodiment, but for example, one equal to manufacture and, Y ₂ O ₂ S: Eu phosphor powder with 40wt% more by mixing Y ₂ O ₂ S: were prepared by a two Eu phosphor powder containing a total of 60wt% cosmetic composition, and 3 this embodiment I did it.

[Example 4]

Embodiment, but two identically produced and, Y ₂ O _3: mixture of Eu phosphor powder more 40wt% and Y ₂ O _3: was Eu phosphor powder is to prepare a cosmetic composition containing a total of 60wt%, As a result, a fourth embodiment .

[Comparative Example 1]

It was prepared in the same manner as in Example 1, but a cosmetic composition was prepared by mixing 20 wt% of titanium dioxide (TiO ₂ ) instead of Y ₂ O ₂ S:Eu phosphor powder, and this was used as Comparative Example 1.

[Comparative Example 2]

It was prepared in the same manner as in Example 1, but a cosmetic composition was prepared by mixing 20wt% of zinc oxide (ZnO) instead of Y ₂ O ₂ S:Eu phosphor powder, and this was used as Comparative Example 2.

That is, the component ratios of the cosmetic compositions prepared according to Example 1, Example 2, Example 3, Example 4, Comparative Example 1, and Comparative Example 2 are as follows.

[Experimental Example 1: SPF numerical measurement]

The UV blocking effect was tested using the cosmetic composition according to the Examples and Comparative Examples shown in Table 1. As for the measurement method, a sample was applied to a transpore tape (3M) at a level of ² mg/cm ² , dried for 20 minutes, and the UV blocking effect was measured using an SPF-290S analyzer, and the results are shown in Table 2. Done.

As can be seen from Table 2, the functional cosmetic composition containing the down-conversion phosphor powder (Y ₂ O ₂ S:Eu phosphor powder or Y ₂ O ₃ :Eu phosphor powder) according to an embodiment of the present invention has a UV blocking effect You can see that it has.

In particular, as can be seen through Examples 3 and 4 and Comparative Examples 1 and 2, in order to have an ultraviolet ray blocking effect of about SPF 20, the phosphor powder according to the present invention is titanium dioxide (TiO ₂ ) or It can be seen that about three times the content of zinc oxide (ZnO) should be contained, which means that the specific gravity of the Y ₂ O ₂ S:Eu phosphor or Y ₂ O ₃ :Eu phosphor (about 225.8 g/mol) is titanium dioxide. This is because (TiO ₂ ) or zinc oxide (ZnO) is about three times larger than the specific gravity (TiO ₂ =79.9g/mol, ZnO=81.4g/mol).

In addition, since SPF 30 has a UV blocking effect that is 3.3% better than SPF 15, when the down-conversion phosphor powder of 45 wt% or more is contained in the cosmetic composition containing the down-conversion phosphor powder according to the present invention, the conventional It can be seen that it shows similar UV protection performance to the cosmetic composition containing the sunscreen.

[Experimental Example 2: Measurement of infrared emission values]

The UV blocking effect was tested using the cosmetic composition according to the Examples and Comparative Examples. As a measurement method, a sample was applied to a transpore tape (3M) at a level of ² mg/cm ² , dried for 20 minutes, and then measured for infrared emissivity and radiation energy, and the results are shown in Table 3.

As can be seen from Table 3, the cosmetic composition containing the down-conversion phosphor powder (Examples 1 to 4) has excellent infrared emission efficiency compared to the cosmetic composition (Comparative Examples 1 and 2) not containing the down-conversion phosphor powder. Can be seen.

As described above, the functional cosmetic composition according to an embodiment of the present invention contains a down-conversion phosphor powder that is excited from ultraviolet rays and emits red visible light or infrared rays, so that it can emit infrared rays excellent for skin cosmetic effects while blocking ultraviolet rays. Accordingly, it has the effect of emitting infrared rays that are beneficial to the skin while blocking ultraviolet rays that are harmful to the skin.

As described above, a functional cosmetic composition according to an embodiment of the present invention has been described, and hereinafter, a functional cosmetic composition according to another embodiment of the present invention will be described in detail.

The functional cosmetic composition according to another embodiment of the present invention may be a cosmetic composition having an up-conversion phosphor material in a certain amount and thus has UV protection and skin beauty effects.

Here, upconversion refers to an interaction between a photon and a medium that absorbs light having a low energy wavelength and emit light having a high energy wavelength. That is, the up-conversion phosphor absorbs infrared rays having a relatively low energy wavelength among sunlight when irradiated with sunlight, and is excited from the absorbed infrared rays and is higher than red visible rays or absorbed infrared rays having a higher energy wavelength than infrared rays. It may be a phosphor that emits infrared rays in the energy band.

The up-conversion phosphor according to the present invention may use any one of oxide, fluoride, chloride, and bromide as a host crystal, and in particular, a fluorine-based material has high It has the advantage of high luminance due to stability and low photon energy.

Specifically, the up-conversion phosphor contained in the functional cosmetic composition according to another embodiment of the present invention may be any one of NaYF ₄ :Er ^{3 +} , NaYF ₄ :Yb ^{3 +} and NaYF ₄ :Tm ^{3 +} . In particular, the NaYF ₄ as a host crystal, and the Tm ^{3 +} doped as an activator NaYF _4: Tm ^{3 +} can emit infrared rays of about 800nm.

The up-conversion phosphor powder contained in the functional cosmetic composition according to another embodiment of the present invention may have a content of 0.1 to 99 wt% based on the total weight of the functional cosmetic composition. In another embodiment, the content of the up-conversion phosphor powder may be changed as necessary, such as 20 to 60 wt% and 30 to 50 wt%, based on the total weight of the functional cosmetic composition.

In addition, the functional cosmetic composition according to the present invention includes purified water, oil (coconut oil, essence oil, sunflower oil, etc.), surfactants, shea butter, moisturizers, chelating agents, etc. to suit the formulation or purpose of use of cosmetics. It may further include a pigment, fatty acid, antioxidant, wax, pH adjuster, incense burner, preservative, at least one of a neutralizing agent, or a mixture composed of at least two of these substances.

In addition, cosmetic compositions are not only products for sun protection, but also all powder-based products (such as makeup compacts, shades and shadows) or foam cleansers, body cleansers, liquid soaps, solid soaps, shampoos, rinses, foam baths, It can be applied as a raw material for skin cosmetics such as bath oil, scrub, massage cream, essence, serum, ointment, oil, pack, lotion, cream or cleansing water, or as a raw material for scalp cosmetics such as hair wax, hair essence, scalp lotion, and scalp ointment. And, depending on the purpose of use, the mixing amount of each component can be adjusted.

In particular, when the cosmetic composition according to the present invention is produced for the scalp, among the above-described phosphor materials, an organic phosphor material that is not visually conspicuous than an inorganic ceramic phosphor is contained in the cosmetic composition. ) As the phenomenon does not occur, the feeling of use can be improved.

Although the above has been described with reference to embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention described in the following claims. I will be able to.

Claims (8)

It contains a photon down conversion phosphor material that is excited from ultraviolet light to emit red visible light and near infrared light,
The photon down-conversion phosphor material is a cosmetic composition for UV protection, characterized in that containing 60% by weight of Y ₂ O ₂ S:Eu phosphor powder or Y ₂ O ₃ :Eu phosphor powder. delete delete delete delete delete delete delete

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