KR20170004842A - Sunscreen cosmetic composition - Google Patents

Abstract

According to the present invention, a cosmetic composition for blocking ultraviolet rays has ultraviolet ray blocking index increased by comprising at least one natural component selected from the group consisting of a seaweed extract, a green tea extract exhibiting an anti-inflammatory effect, an Artemisiae annuae Herba extract, and a neem leaf extract. Also, the cosmetic composition for blocking ultraviolet rays exhibits effects for improving skin conditions such as excellent stability without phase separation, excellent applicability, and improved sense of using.

Description

[0001] Sunscreen cosmetic composition [0002]

The present invention relates to a cosmetic composition for protecting ultraviolet rays containing a Kim extract and a natural component.

Ultraviolet rays have wavelengths shorter than visible rays and are invisible to the human eye and have a wavelength range of 10 to 400 nm. It has lower permeability than ordinary X-rays or gamma rays but has a higher energy than visible light or infrared rays. Therefore, it causes sunburn, pigmentation, photo aging, etc. on human skin. do.

Ultraviolet rays are classified into short-wave ultraviolet rays (UVC) of 200-280 nm, medium-wave ultraviolet rays (UVB) of 290-300 nm and long-wave ultraviolet rays (UVA) of 320-400 nm according to their wavelengths. Short- Are mostly absorbed by the ozone layer and disappear without reaching the surface. The medium-wave ultraviolet rays penetrate to the epidermal basal layer and the upper part of the dermis to cause sunburn such as erythema and edema, and pigmentation such as freckle, thereby causing skin cancer. Long-wave ultraviolet light is the longest wavelength of ultraviolet rays, which reaches the dermis of the skin, thereby reducing the elasticity of the skin, promoting the generation of wrinkles, and is known as an aging ray that causes photoaging. Thus, the need for sunscreen agents to protect the skin from ultraviolet rays that cause various skin damages has long been recognized, and as a result, various types of ultraviolet screening products have been introduced.

Conventional ultraviolet screening agents are classified into organic ultraviolet screening agents and inorganic ultraviolet screening agents according to the mechanism of protecting the skin from ultraviolet rays. Chemical blocking agents that absorb ultraviolet rays and turn ultraviolet rays into heat through a chemical reaction are organic UV blocking agents (ultraviolet absorbers). Examples thereof include ethylhexylmethoxycinnamate, ethylhexylsalicylate, octocrylene, butylmethoxydibenzoyl Methane, bis-ethylhexyloxyphenol methoxyphenyltriazine, and diethylaminohydroxybenzoylhexylbenzoate. These organic sunscreen agents (chemical blocking agents) are absorbed by the skin and thus have a disadvantage of causing skin irritation and skin toxicity. On the other hand, physical blocking agents that reflect and scatter ultraviolet rays and block ultraviolet rays from penetrating into the skin are classified as inorganic sunscreens (ultraviolet scattering agents), and examples thereof include titanium dioxide and zinc oxide. Inorganic sunscreen agents (physical blockers) are difficult to disperse and dissolve in the formulations, resulting in white turbidity, which is turned white when applied to skin, and bad feeling of use. To overcome the shortcomings of these sunscreens, efforts have been made to find natural sunscreens that have little skin irritation and side effects.

Most of the ultraviolet screening materials isolated from natural materials are ultraviolet absorbing materials, and they have little irritation, and include pharmacological effects such as anti-inflammation, convergence, and antibacterial effects. On the other hand, it has been known that Porphyra Umbilicalis extract which absorbs the wavelength of the long-wave ultraviolet region band is used as an ultraviolet screening agent and shows excellent ultraviolet shielding effect (Patent Document 1).

In addition, the anti - inflammatory substance plays a boosting role in enhancing the effect of the sunscreen agent. As a result, it was experimented with the natural extracts of green tea extract, It was found that the ultraviolet blocking effect was increased.

Accordingly, the present inventors have studied to solve the problems of conventional organic UV filters. As a result, they found that the green tea extract, the blueberry extract, and the mulberry leaf extract together with the Kim extract increased the ultraviolet blocking value of the ultraviolet ray blocking cosmetic composition. Thereby completing the invention for an ultraviolet-shielding cosmetic composition to which the present invention has been applied.

Korean Patent No. 10-0969325

An object of the present invention is to provide a cosmetic composition for ultraviolet screening which comprises an extract of natural extract containing a natural ultraviolet ray absorbing component and a green tea extract which exhibits excellent antiinflammatory effect, .

In addition, the present invention provides a cosmetic composition for ultraviolet ray shielding which is excellent in ultraviolet ray shielding effect and good spreading property, without increasing the whiteness.

In order to accomplish the above object, the present invention provides a cosmetic composition for protecting against UV rays comprising at least one natural ingredient selected from the group consisting of a Kim extract, a green tea extract, a Chungho extract and a Mulberry leaf extract.

Specifically, the present invention provides a cosmetic composition for protecting ultraviolet rays, which contains the above extract in an amount of 0.001% by weight to 20% by weight based on the total weight of the composition.

In addition, the present invention provides a cosmetic composition for protecting against UV rays, which contains 0.001 to 20% by weight of natural ingredients based on the total weight of the composition.

The cosmetic composition for protecting ultraviolet rays according to the present invention can improve the ultraviolet blocking value by including a green tea extract showing excellent ultraviolet shielding effect and at least one natural ingredient selected from green tea extract, It is possible to provide a cosmetic composition for ultraviolet ray shielding that exhibits skin improvement effects such as excellent formulation stability, excellent spreadability, and improvement in usability.

According to the present invention,

Kim extract; And

Which comprises at least one natural component selected from the group consisting of green tea extract, blue-green algae extract and mulberry leaf extract as an active ingredient.

The cosmetic composition for protecting ultraviolet rays according to the present invention may include those having an ultraviolet barrier property (SPF) of 10 to 50+ and a long wave ultraviolet protection class (PA) of triple plus (PA +++).

Hereinafter, the cosmetic composition for protecting ultraviolet rays of the present invention will be described in more detail.

The ultraviolet shielding component of the present invention includes a Kim extract, which exhibits an excellent ultraviolet shielding effect and is used together with one or more natural ingredients selected from the green tea extract, Cheongho extract and mulberry leaf extract, do.

The Kim extract can be extracted by a method known in the art, and the method is not particularly limited. Alternatively, commercially available extracts can be used.

The Kim extract of the present invention may be contained in an amount of 0.001 to 20% by weight based on the total composition, and may be in a range of 0.1 to 10% by weight, for example. When the content is less than 0.001% by weight, the long-wave ultraviolet ray absorbing ability deteriorates, and the desired effect is hardly observed. When the content exceeds 20% by weight, the physical properties of the composition are rather deteriorated or the effect thereof is not greatly increased.

In addition, the cosmetic composition for protecting ultraviolet rays of the present invention includes a natural component. The natural ingredients include one or more selected from green tea extract, blueberry extract, and mulberry leaf extract. Since the extract has an anti-inflammatory effect, it can eliminate erythema or the like which occurs in the skin by ultraviolet irradiation.

The natural component may be extracted by a method known in the art, and the method is not particularly limited. Alternatively, commercially available extracts can be used.

The natural component may be an extract obtained by extracting green tea, green tea, and moth leaf with water and / or an organic solvent, and the organic solvent may be a polar organic solvent, a nonpolar organic solvent or a mixture thereof. The polar organic solvent may be a lower alcohol having 1 to 5 carbon atoms, ethyl acetate or acetone, and the nonpolar organic solvent may be ether, chloroform, benzene, hexane or dichloromethane. For example, the lower alcohol having 1 to 5 carbon atoms may be methanol, ethanol, propanol, butanol or isopropanol.

In one embodiment, the Green tea extract, Cheongho extract and Mulberry leaf extract may include fractions obtained by fractionating the primary extract extracted using the above-described extraction solvent with an extraction solvent having a different polarity. For example, Green tea extract, Chungho extract and Mulberry leaf extract may be fractions obtained by extracting with alcohol having 1 to 5 carbon atoms and then fractionating again with solvents having different polarities such as ether, benzene, hexane and the like. Two or more kinds of solvents may be used for the fractionation, and the solvent extracts may be sequentially used or mixed according to the polarity of the solvent.

In the present invention, the extracted extract or the fraction obtained by performing the fractionation process may be filtered, concentrated or dried to remove the solvent, and the filtration, concentration, and drying may all be performed. Specifically, the filtration can be performed using a filter paper or a vacuum filter, and the concentration can be reduced by using a reduced pressure concentrator or the like, and the freeze-drying method can be carried out for drying.

The fractions obtained by performing the above-described extract or the fractionation process can be further purified by silica gel column chromatography, thin layer chromatography or high performance liquid chromatography Further purification can be achieved by purification using various chromatographic techniques.

In addition, the natural ingredients of the present invention may be contained in the cosmetic composition in an amount of 0.000001 to 20% by weight, for example, 0.000001 to 10% by weight. If the content is less than 0.000001% by weight, the anti-inflammatory effect is hardly expected. If the content is more than 20% by weight, the effect is not greatly increased.

The weight ratio of the natural component to the green tea extract is preferably about 1: 1: 1 by weight, more preferably about 1: 1: 1 by weight, It is possible to maximize the effect of preventing the erythema occurring in the skin by enhancing the ultraviolet blocking effect or irradiating ultraviolet rays.

The ultraviolet screening cosmetic composition of the present invention may further comprise an ultraviolet screening agent used in a conventional cosmetic composition, and thus the ultraviolet screening effect may be further increased. Examples of the ultraviolet screening agent include an organic ultraviolet screening component and an inorganic ultraviolet screening component. These components may be used alone or in combination of two or more. Examples of the organic UV blocking component include octyl methoxycinnamate, octyl salicylate, octocrylene, benzophenone-3, benzophenone-4, benzophenone-8, homosalate, ethylhexyl triazone, polysilicon- 15, diethylamino benzoylhexyl benzoate, butyl methoxy dibenzoyl methane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methyl benzylidene campa, 2-phenylbenzimidazole- Isoamyl p-methoxy cinnamate, and bis-ethylhexyloxyphenol methoxyphenyltriazine, and examples of the inorganic ultraviolet blocking component include at least one selected from the group consisting of disodium phenyldibenzimidazole tetrasulfonate, But is not limited to, at least one selected from the group consisting of titanium dioxide and zinc oxide.

The content of the ultraviolet shielding component is also not particularly limited and may be appropriately selected according to the intended use. In the case of the organic ultraviolet shielding component, the content of the ultraviolet shielding component is preferably 1 to 30 wt% 1 to 40% by weight. If the content of the organic ultraviolet blocking component or the inorganic ultraviolet blocking component is less than 1% by weight, the ultraviolet blocking effect may not be sufficient. If the content of the organic ultraviolet blocking component exceeds 30% by weight or the content of the inorganic ultraviolet blocking component is less than 40% If the amount is more than 10% by weight, the feeling of use of the cosmetic composition may deteriorate.

The cosmetic composition for ultraviolet screening according to the present invention may further comprise ingredients generally included in cosmetic compositions in addition to the ultraviolet screening ingredients such as the extract of Kim extract, natural ingredients and ultraviolet screening agent.

The cosmetic composition for protecting ultraviolet rays of the present invention may further comprise a nonionic surfactant. It is preferable to use a lipophilic nonionic surfactant in order to improve the formulation stability of the nonionic surfactant. For example, it is preferable to use at least one selected from the group consisting of glyceryl stearate, sorbitan sesquioleate, sorbitan stearate, phage-10 dimethicone, and sorbitan olivate. The nonionic surfactant may be contained in an amount of 0.5 to 10% by weight. That is, the nonionic surfactant is preferably contained in an amount of 0.5 wt% or more in consideration of the formulation stability, and is preferably contained in an amount of 10 wt% or less for the feeling of use.

The UV-blocking cosmetic composition of the present invention may further comprise an oil. The type of the oil is not particularly limited, and conventional oils used in the cosmetic composition may be used. Specifically, hydrocarbon oils such as squalane or mineral oil; Caprylic / capric triglyceride, neopentyl glycol dicaprate, 2-octyldodecyl myristate, isopropyl myristate, cetyl 2-ethylhexanoate, octyldodecanol, or glyceryl triethylhexanoate An ester-based oil; Vegetable oils including olive oil, jojoba oil, or macadamia oil; And a silicone oil containing cyclomethicone or dimethicone, is preferably used.

The content of the oil is also not particularly limited and may be suitably selected according to the intended use, but it is preferably contained in an amount of 1 to 50% by weight. If the content of the oil is less than 1% by weight, the physical properties of the composition may deteriorate. If the content of the oil is more than 50% by weight, the viscosity of the composition may become excessively high.

The ultraviolet screening cosmetic composition of the present invention may further comprise a dispersant. The dispersant may be a polyhydric alcohol such as glycerin, butylene glycol, or propylene glycol in order to improve the sensation of use and the dispersibility of the ultraviolet screening agent. The dispersing agent is preferably contained in an amount of 0.5 to 50% by weight based on the total weight of the composition.

The UV-blocking cosmetic composition of the present invention may further contain a moisturizing agent, an aging agent, an oxidation stabilizer, a bactericide, an antiseptic, a flavoring agent, a coloring matter or other additives in addition to the above effects.

The ultraviolet screening cosmetic composition of the present invention can be completed by including the remaining components as purified water except for the above components. In addition, the cosmetic composition for UV screening of the present invention can be produced by the usual methods in this field using the respective components described above, and the method is not particularly limited.

Hereinafter, the present invention will be described in detail with reference to examples. However, the following examples are illustrative of the present invention, and the present invention is not limited to the following examples.

Manufacturing example  1: Preparation of Kim extract

In order to prepare the extract without destroying the potency components contained in the extract, the production method was used. The dewatering method is a method of dewatering using zeolite in a low-temperature vacuum state, and an effective ingredient of the extract can be obtained at a high concentration. Specifically, steaming was added to the solvent and the mixture was extracted, and the resulting mixture was filtered and concentrated. The resulting mixture was dried by a low-temperature vacuum drying method, finely pulverized and extracted with glycerin.

Manufacturing example  2: Green tea, Cheongho  And MyLife  Preparation of extract

In order to solve the effect of minor skin improvement efficacy in the case of the use alone of the plant extracts, in order to prepare not only the flavonoid of each plant but also the components capable of cooperating with each plant, And extracted without destroying.

Specifically, the green tea leaves, the green tea leaves, and the green tea were washed with water and dried in the shade. Then, the dried chrysanthemum, the green tea leaves and the green tea were crushed and put into extraction containers, respectively, and repeatedly extracted with glycerin at a low temperature of 60 ° C under vacuum. ≪ / RTI > The obtained extract was filtered to remove solid matter using filter paper or the like, and then the extract was concentrated under reduced pressure to prepare an extract.

The two or more kinds of mixed extracts selected from the group consisting of the above-mentioned Chunho, munzen leaf and green tea of the present invention may be prepared by extracting each of the above-mentioned Chunho, mint leaf and green tea and then mixing them with two or more kinds of extracts, May be produced by a method of extracting two or more species selected from the group consisting of

Example  1. UV protection Cosmetics  Preparation of composition

Raw materials 1 to 7 were separately weighed in a beaker in the following Table 1, and then heated to 70 to 75 캜 and stirred to prepare a uniform phase. Then, raw materials 8 to 13 were weighed in separate beakers, and the mixture was warmed and stirred to obtain a homogeneous phase. The mixture of raw materials 1 to 7 was mixed while the mixture of raw materials 8 to 13 was gradually added at a high temperature and stirred for 20 minutes to prepare a cosmetic composition for UV screening. At this time, the mixture of raw materials 1 to 7 was prepared while carefully preparing it to be dispersed sufficiently. The composition of the cosmetic composition is shown in Table 1 below.

Comparative Example  1. UV protection Cosmetics  Preparation of composition

An ultraviolet barrier cosmetic composition was prepared in the same manner as in Example 1, except that the raw material 11 was included in the above Example 1. The composition of the cosmetic composition is shown in Table 1 below.

Comparative Example  2. UV protection Cosmetics  Preparation of composition

A UV-blocking cosmetic composition was prepared in the same manner as in Example 1, except that raw materials 10 and 11 were used in Example 1 above. The composition of the cosmetic composition is shown in Table 1 below.

Raw material (% by weight) Example 1 Comparative Example 1 Comparative Example 2 One Titanium dioxide 15 15 15 2 Zinc oxide 25 25 25 3 Argan tree kernel oil One One One 4 Olive oil One One One 5 Sorbitan olivate 0.5 0.5 0.5 6 Caprylic / capric triglyceride One One One 7 Coco-caprylate / caprate 15 15 15 8 Purified water To 100 To 100 To 100 9 glycerin 3 3 3 10 Kim extract 2 2 - 11 Green Tea Extract, Chungho Extract, Mulberry Leaf Extract 2 - - 12 Magnesium sulfate 0.1 0.1 0.1 13 Butylene glycol 5 5 5 total 100

Experimental Example  1. Check UV protection effect

Example 1 and Comparative Examples 1 and 2 were subjected to an SPF clinical trial in vitro. The samples of Example 1 and Comparative Examples 1 and 2 were applied to artificial skin (Vitroskin), and ultraviolet rays were irradiated to measure ultraviolet blocking values. The higher the SPF and PA values, the higher the UV protection capacity. The results are shown in Table 2 below.

sample Judgment result SPF PA Example 1 46 +++ Comparative Example 1 40 +++ Comparative Example 2 30 ++

As shown in Table 2, Example 1 and Comparative Example 1 which commonly contained the Kim extract (raw material 10) had an excellent ultraviolet shielding effect as compared to Comparative Example 2 which contained neither SPF 40 nor PA +++ nor any extract . However, it was confirmed that Example 1 containing the green tea extract, Cheongho extract and Mulberry leaf extract (raw material 11) of the present invention exhibited a higher ultraviolet shielding effect as compared with Comparative Example 1 containing only the Kim extract (raw material 10) .

Experimental Example 2. Evaluation of Feeling

Fifty women aged 25 to 45 years were divided into four groups, and Example 1 and Comparative Examples 1 and 2 were appropriately adjusted to each group to be used on both sides of the face. The results were evaluated according to the following evaluation criteria: , And overall feeling. The results are shown in Table 3.

<Evaluation Criteria>

1: Poor

2: Poor

3: Usually

4: Slightly better

5: Very good

Item Example 1 Comparative Example 1 Comparative Example 2 Brittle 4.8 4.6 2.7 absorptivity 4.6 4.4 2.4 Moisture power 4.7 4.5 2.9 Overall feeling 4.7 4.5 2.6

As shown in the above Table 3, in the evaluation of sensation on actual women, in Example 1 and Comparative Example 1 in which the extract of Kimchi was contained, compared with Comparative Example 1, I received excellent evaluation. However, in the case of Example 1, it was confirmed that all the items were evaluated to be superior to Comparative Example 1 using only the Kim extract (raw material 10) by further containing Green tea extract, Chungho extract and Mulberry leaf extract (raw material 11).

Experimental Example 3. Evaluation of stability

The formulation stability of Example 1 according to the items in Table 4 below was evaluated to confirm formulation stability with temperature.

<Evaluation Criteria>

Stable: Smooth and homogeneous on the surface without separation

Unstable: if separation occurs or is not smooth

Item Example 1 50 degrees (21 days) stability 45 degrees (30 days) stability Cycle
(-10 degrees to 45 degrees, 30 days) stability Frozen (F / T) 5 times stability

As shown in Table 4, the stability of the formulation was confirmed through the fact that the composition according to Example 1 did not undergo phase separation under the above conditions.

Claims (13)

Kim extract; And
Wherein the cosmetic composition comprises at least one natural ingredient selected from the group consisting of green tea extract, blue smoke extract, and mulberry leaf extract as an active ingredient. The method according to claim 1,
The extract of Kim extract is an extract obtained by extracting Kim with at least one selected from the group consisting of water and an organic solvent. The method according to claim 1,
The green tea extract is an extract obtained by extracting green tea with at least one selected from the group consisting of water and an organic solvent. The method according to claim 1,
The cosmetic composition for ultraviolet rays is an extract obtained by extracting a Korean blue-green algae with at least one selected from the group consisting of water and an organic solvent. The method according to claim 1,
Wherein the extract is an extract obtained by extracting a moth leaf from at least one selected from the group consisting of water and an organic solvent. 6. The method according to any one of claims 2 to 5,
The organic solvent may be a polar solvent containing a lower alcohol having 1 to 5 carbon atoms, ethyl acetate, or acetone; A nonpolar solvent comprising ether, chloroform, benzene, hexane or dichlorohexane; Or a mixed solvent thereof. The method according to claim 1,
Wherein the Kim extract has a content of 0.001 wt% to 20 wt% with respect to the total weight of the composition. The method according to claim 1,
Wherein the natural component is contained in an amount of 0.000001 wt% to 20 wt% with respect to the total weight of the composition. The method according to claim 1,
An organic UV-blocking component, and an inorganic UV-blocking component. 10. The method of claim 9,
The organic UV blocking component may be selected from the group consisting of octyl methoxycinnamate, octyl salicylate, octocrylene, benzophenone-3, benzophenone-4, benzophenone-8, homosalate, ethylhexyl triazone, polysilicon- 4-methylbenzylidene campa, 2-phenylbenzimidazole-5-sulfonic acid, di-tert-butylbenzoyl benzoate, dihydroxy benzoylhexyl benzoate, butyl methoxy dibenzoyl methane, oxybenzone, octyltriazone, Wherein the cosmetic composition comprises at least one selected from the group consisting of sodium phenyldibenzimidazole tetrasulfonate, isoamyl p-methoxy cinnamate, and bis-ethylhexyloxyphenol methoxyphenyltriazine. 10. The method of claim 9,
Wherein the inorganic ultraviolet blocking component comprises at least one member selected from the group consisting of titanium dioxide and zinc oxide. 10. The method of claim 9,
Wherein the content of the organic ultraviolet blocking component is 1 to 30% by weight based on the total weight of the composition. 10. The method of claim 9,
Wherein the content of the inorganic UV blocking component is 1 wt% to 40 wt% with respect to the weight of the total composition.