JP2008273894A - Ultraviolet-ray blocking agent and sunscreen agent, and cosmetic raw material and cosmetic each containing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic raw material and a cosmetic inhibiting skin disorders to be caused by ultraviolet irradiation, through blocking ultraviolet-ray to accomplish sunscreen effect. <P>SOLUTION: An ultraviolet-ray blocking agent and a sunscreen agent are provided, each containing a petal extract of rose belonging to the genus Rosa, Rosaceae family. The cosmetic material and the cosmetic each containing the above ultraviolet-ray blocking agent or sunscreen agent have ultraviolet-ray blocking effect and sunscreen effect respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an ultraviolet screening agent and a sunscreen containing an extract of petals of the family Rosaceae, and cosmetic raw materials and cosmetics containing these.

  Typical changes in human skin aging are wrinkles, tarmi, stains, and kusumi, which are particularly troublesome for women. These changes occur due to changes in the structure of the skin epidermis cells and dermis cells, changes in the extracellular matrix, and the like. One of the major factors that cause these changes is ultraviolet rays.

In recent years, with the expansion of the ozone hole, there is concern about an increase in the amount of ultraviolet rays reaching the ground.
Ultraviolet rays in the UVB region with a wavelength of 280 to 315 nm cause inflammation such as “skin redness” and “skin irritation”. Ultraviolet rays in the UVA region having a wavelength of 315 to 400 nm, which has a longer wavelength than UVB, reach the deep layers of the skin, and when the ultraviolet rays activate melanocytes (cells that synthesize melanin), the production of melanin pigments increases. It is known to cause conditions such as “stain”, “stain”, and “skin browning”.

  From the above viewpoint, sunscreen materials having an ultraviolet ray preventing effect and an ultraviolet ray absorbing effect have been developed and studied. Conventionally, in cosmetics for sunscreen, etc., chemical substances are often mainly blended, but depending on the user, it may not fit the skin and may cause irritation and itching. Therefore, sunscreen cosmetics derived from natural products such as plants are attracting attention as safer materials than artificial chemicals. For example, Patent Document 1 describes a sunscreen cosmetic containing a rice bran fermentation extract of brown rice as an active ingredient. Patent Document 2 describes an anti-ultraviolet cosmetic composition containing a gold and silver flower extract, a mulberry white skin extract, and a mixed extract.

  In addition, it is widely known that the extract of the Rosaceae plant contains a large amount of polyphenol. In addition, it is widely known that the extracts of rosaceae plants contain various polyphenolic substances such as eugeniin, a kind of tannins, and studies on the physiological effects of extracts of rosaceae plants have been conducted. ing. As these physiological actions, tyrosinase inhibitory action (Patent Document 3) and the like are known.

JP 2006-36704 A JP 2005-298511 A JP 2005-281262 A

  This invention is made | formed in view of the said present condition, and it aims at providing the ultraviolet-ray blocker, the cosmetic raw material and cosmetics containing this, a sunscreen, the cosmetic raw material containing this, and cosmetics.

The present invention is as follows.
[1] An ultraviolet blocker comprising an extract of petals of a rose family plant belonging to the family Rosaceae.
[2] A sunscreen agent comprising an extract of petals of a rose family, Rosaceae.
[3] A cosmetic raw material comprising the ultraviolet blocking agent according to [1] above or the sunscreen agent according to [2] above.
[4] A cosmetic comprising the ultraviolet blocking agent described in [1] above or the sunscreen agent described in [2] above.

  The ultraviolet blocking agent and sunscreen agent of the present invention have the above-described configuration, thereby exhibiting an ultraviolet blocking effect and a sunscreen effect. The cosmetic raw material of the present invention can impart an ultraviolet blocking action and a sunscreen action to cosmetics by having the above-described configuration. The cosmetic product of the present invention has the above-described configuration, thereby exhibiting an ultraviolet blocking action and a sunscreen action.

The present invention will be described in detail below.
[1] Ultraviolet ray blocking agent and sunscreen agent The ultraviolet ray preventing composition and sunscreen agent of the present invention are characterized by containing a petal extract of a Rosaceae plant.

  The “Rosaceae rose genus plant” is not particularly limited, but roses belonging to the genus Rosaceae (Rosa spp.) Are preferred, and specifically, Rosa gallica, Rosa centifolia ( Rosa centifolia, Rosa moscata, Rosa foetida, Rosa gigantea, Rosa multichra, Rosa ach wild species such as damascea) or horticultural species obtained by crossing these. Moreover, the said Rosaceae rose genus plant may use a part and / or all of the plant body as harvested, and may use it dried. Furthermore, when obtaining the extract of the Rosaceae plant belonging to the family Rosaceae, the raw material for extraction may be unground or pulverized, and may be subjected to pretreatment such as impurity removal.

  The “extract of petals of rose family rose genus” (hereinafter simply referred to as “rose extract”) is an extract extracted from the petals of rose family of rose genus. When obtaining this rose extract, there are no particular limitations on the extraction method and extraction conditions. As an extraction solvent, in addition to water or hot water, alcohols (methanol and ethanol, etc.), organic solvents such as ethyl acetate, n-hexane or acetone, mixed solvents of these organic solvents and water or hot water, etc. Usually, a mixed solvent of water or hot water and alcohols is used. For example, a water-methanol mixed solvent, a water-ethanol mixed solvent, etc. are mentioned. Moreover, when using the mixed solvent of the said water or hot water, and alcohol, the ratio of alcohol is 20-90 volume% normally, Preferably it is 30-70 volume%, More preferably, it is 40-60 volume%. In addition, the pH of the extraction solvent during extraction is usually 3 to 7, preferably 4 to 6, and more preferably 4 to 5. The extraction temperature is not particularly limited, but normal temperature or heat extraction is preferable. If it is normal temperature extraction, for example, it can be extracted by immersing the raw material in a solvent such as a water-methanol mixed solvent and leaving it at room temperature for about 1 to 5 days. In the case of heat extraction, the heating temperature is usually 40 to 100 ° C, preferably 50 to 80 ° C, more preferably 50 to 70 ° C. By setting the heating temperature to such a range, extraction can be performed efficiently, which is preferable.

  When using the above rose extract, the extract residue after extraction and the extract (extraction solvent containing rose extract) are usually separated. Although the separation method in this case is not particularly limited, it can be separated by a filter press, filtration (pressurization, normal pressure) or the like. The extract separated from the extraction residue can be used as it is as the ultraviolet absorbing composition of the present invention. In addition, the extraction liquid separated from the extraction residue can be used after further removing the extraction solvent contained therein. The method for removing the extraction solvent from the extract is not particularly limited, and can be performed by, for example, spray drying (spray drying), evaporation, freeze drying, or the like. The solid content (rose extract solid content) collected from the extract may be used as it is, or further purified. That is, after this solid content is dissolved in water and / or an organic solvent or the like, filtration is performed to remove impurities and the like, and then the solvent is removed for purification. Furthermore, a sterilization process etc. can be given as needed.

  The form of the ultraviolet screening agent and sunscreen of the present invention is not particularly limited. For example, it can be liquid, solid, powder, granule, granulated granulation and the like. For example, as a liquid substance, a solid or powder dried by a known method such as freeze-drying is added to water or an organic solvent such as ethanol, propylene glycol and 1,3-butylene glycol, or a mixed solvent thereof. Examples include the resulting solution or dispersion. Moreover, unless the ultraviolet-screening agent and sunscreen of this invention inhibit the effect of this invention, you may contain other components other than the said rose extract for the purpose of quality maintenance.

  The ultraviolet blocking agent and sunscreen agent of the present invention are excellent in ultraviolet blocking action, ultraviolet absorbing action and sunscreen action, and therefore can be added to various cosmetics. As a result, it is possible to impart UV blocking action and sunscreen action to cosmetics, and the UV blocking agent and sunscreen agent of the present invention are cosmetic raw materials and cosmetic additives for imparting UV blocking action and sunscreening action to cosmetics. It can be suitably used as an agent. When the ultraviolet screening agent and sunscreen of the present invention are added to cosmetics, the amount added is usually 0.001 to 10% by mass, preferably 0.01 to 5% by mass, as the content of the rose extract part. Preferably it is 0.1-3 mass%.

[2] Cosmetic raw materials and cosmetics The cosmetic raw materials and cosmetics of the present invention contain the ultraviolet blocking agent or sunscreen agent of the present invention (hereinafter simply referred to as an ultraviolet blocking agent).

  The form of the cosmetic raw material of the present invention is not particularly limited, and various forms can be appropriately selected as necessary. For example, the form of the cosmetic raw material of the present invention is a liquid form obtained by dissolving the ultraviolet blocking agent of the present invention which is liquid, solid, powder or granular in an aqueous solvent such as water, ethanol or propylene glycol. In addition, powders obtained by drying or impregnating liquid-absorbing powders of the present invention, etc., granulated products obtained by granulation, tablets obtained by tableting, etc. A capsule etc. are mentioned. Of course, the cosmetic raw material of the present invention may contain other substances as long as the effects of the present invention are not impaired. For example, when the ultraviolet blocking agent or the like of the present invention is a powder product or a granulated product, an extender such as corn starch rich in water solubility can be added in order to facilitate measurement in production. In addition, other ultraviolet blocking agents and the like may be included.

  Moreover, as a form of the cosmetics of this invention, liquid (skin lotion, emulsion, dispersion liquid, etc.), powder form, spray form, gel form, cream form etc. are mentioned, for example. In the case of liquid cosmetics, in addition to the functional material of the present invention, hydrocarbon oils such as liquid paraffin, olive oil, wheat germ oil, nut oil, corn oil, rice bran oil, rice germ oil, pearl barley oil, jojoba oil, and It can be obtained by appropriately blending one or more of vegetable oils such as grape seed oil, animal oils such as squalane and horse oil, other oils, and lower ethanol such as gelmar modified ethanol. In the case of gel-like cosmetics, in addition to these oils and ethanol, it is produced by blending one or more of cellulose derivatives such as CMC, PVP, carboxyvinyl polymer, and carrageenan thickeners. can do. Furthermore, in the case of cream, it may be only oil such as liquid paraffin, petrolatum, beeswax, etc., or may be obtained by emulsifying these oil and water with a surfactant. Moreover, as an emulsification type, any of a W / O emulsification type and an O / W emulsification type may be sufficient.

  Specifically, the cosmetic of the present invention includes, for example, a cosmetic cream ingredient containing one or more of kaolin, talc, zinc oxide, olive oil, water-soluble lanolin, glycerin, purified water, etc. Cosmetic lotion containing a blocking agent or the like, and lotion ingredients containing one or more of concentrated glycerin, trimethylglycine, methylparaben, sodium dl-pyrrolidonecarboxylate, maltitol, copper chlorophyllin sodium, ethanol, purified water, etc. And a lotion containing the ultraviolet blocking agent of the present invention. Other examples of the cosmetic of the present invention include various skin cosmetics such as suntan / sunscreen lotion, suntan / sunscreen oil, milky lotion, eau de cologne, cosmetic oil, funny powder, foundation, perfume, and pack.

  The cosmetic raw materials and cosmetics of the present invention may contain other substances as long as they contain the ultraviolet blocking agent of the present invention and the like and do not inhibit the effects of the present invention. For example, a known substance that has been conventionally added to cosmetics can be added. Specifically, for example, one or more of a surfactant, an oil agent, an alcohol, a pH adjuster, an antiseptic, an antioxidant, a thickener, a pigment, a fragrance, and the like are appropriately blended as necessary. Also good.

Hereinafter, the present invention will be described specifically by way of examples.
(1) Preparation of rose extract As a plant belonging to the family Rosaceae, the rose petal (Rosa centifolia) petals (20g) dried product (pulverized product) 20g with 70ml of hot water at 70 ° C for 30 minutes, filtered (as a filter aid) Perlite). Next, after concentration under reduced pressure, the mass in terms of solid content of the concentrate was measured. This solid equivalent mass measured the sugar content {Brix value (%)} of the concentrate, and converted this sugar content as soluble solid content concentration (%).

(2) Ultraviolet ray blocking and sunscreen test The cosmetic solution was prepared by the method described below, and the ultraviolet ray blocking and sunscreen effects were examined.
The components listed in Table 1 were mixed to obtain a test solution containing 1% by mass of rose extract with 100% by mass as the total mass. As a control solution for the effect test, a solution containing no rose extract of the test solution was used.

One male in his 30s and six females in his 20s to 40s were panelists and tested for UV shielding and sunscreen effects on Saipan Island (hereinafter simply referred to as "Saipan Island") in the United States Autonomous Territory of Northern Mariana.
The test method was performed by applying the test solution and the control solution to the paneler's skin and measuring the change in the skin color numerically with a color difference meter.
The position where the test solution and the control solution were applied was the forearm portion of the panel or the back of the hand, and two areas for applying the test solution and the control solution were set.
The test period was 3 days, and the test solution and the control solution were applied 6 times. The application time was on the night of departure from Saipan Island, the morning and night the next day, the morning and night the next day, and the morning of the return day.
Evaluation of the effect by the test was performed by measuring the skin color numerically with a color difference meter in the area where the panel test liquid and the control liquid were applied before leaving Saipan Island and returning to Japan.
The ultraviolet intensity during the stay in Saipan was 8 to 10 in terms of UVindex. UVindex 8 to 10 is a situation where the intensity of ultraviolet rays is very strong (http://www.data.kisho.go.jp//obs-env/uvhp/3-40 uindex_manual.html). Corresponds to the average UV intensity of the moon.

(3) Measurement with a color difference meter The color of the paneler's skin was digitized and measured with a color difference meter. The color difference meter used was SE2000 manufactured by Nippon Denshoku Industries Co., Ltd. The measurement with the color difference meter was carried out three times at two locations (test solution range and control solution range) in the range where the test solution and the control solution were applied before departure from Saipan Island and after returning to Japan. The average of the values measured three times each was taken as the measured value.
The numerical value measurement of the color with a color difference meter was usually performed using “L *”, “a *”, and “b *”, which are used as indicators of color measurement, as indicators. The contents of each index are as follows.
“L *” is an index of “brightness”, where the numerical value 100 is white and the numerical value 0 is black.
“A *” is an index of “redness”, where the numerical value 100 is red and the numerical value 0 is green.
“B *” is an index of “yellowness”, where the numerical value 100 is yellow and the numerical value 0 is blue.
The ratio of the amount of change in “L *” in the test liquid application part to the amount of change in “L *” in the control liquid application part was calculated as the sun protection factor using the following formula.
Sun protection rate = (1− (test solution ΔL * / control solution ΔL *)) × 100 (%)
The effect was determined from the sun protection rate. The effect judgment was evaluated in five stages according to the following evaluation criteria. Table 2 shows the results of the colorimeter measurement and the effect determination.
−; Sun protection rate is less than −10% ±; Sun protection rate is −10% or more and less than 10% +; Sun protection rate is 10% or more and less than 40% ++; Sun protection rate is 40% or more and less than 70% +++; sun protection rate is 70% or more

In addition, the influence of the skin of the paneler due to ultraviolet rays during the test period was examined as “tanning level” in three stages according to the following criteria. The results of sunburn level are also shown in Table 2.
High: L * value change ΔL * of the control liquid application part is 3 or more Medium; L * value change ΔL * of the control liquid application part is 1 or more and less than 3 Low; Change in L * value of the control liquid application part Amount ΔL * is less than 1

(4) Effect of Example According to Table 2, the numerical value of the L * value of the control liquid application range of all the panelists is lower after returning than before departure. From this, it can be seen that the darkness of the color of the application range of the control solution is strong, and all the panelists have tanned. The average value of L * value change amount (ΔL *) in the test liquid application range is −1.850, and the average value of L * value change amount (ΔL *) in the control liquid application range is −3.466. there were. From these results, it can be seen that the test liquid containing the ultraviolet blocking agent of the present invention has an excellent ultraviolet blocking effect and sunscreen effect compared to the control solution.
In addition, when the panelists are classified according to each tan level, the low tan level is 2 (A, D), the middle tan level is 3 (B, E, G), and the high tan level is 2 (C, F). there were. As for the effect determination at each sunburn level, -2 people of low suntan level were-(1) and ± (1) (A). Of the 3 people with medium tan level, + was 2 (E, G) and ++ was 1 (B). Two people (C, F) were rated ++ at high sunburn levels. From these results, it can be seen that the cosmetic liquid containing the ultraviolet screening agent and sunscreen of the present invention has an ultraviolet screening effect and a sunscreening effect particularly at high sunscreen levels.
From the above, it can be seen that the test liquid, which is a cosmetic liquid containing the ultraviolet blocking agent of the present invention, has an excellent ultraviolet blocking effect and sunscreen effect compared to the control solution.

An experiment for measuring the absorption spectra of the test solution and the control solution used in the above examples was conducted. The result of the measurement experiment is shown in FIG.
From the results of FIG. 1, it can be seen that UVB having a wavelength of 280 to 315 nm and UVA having a wavelength of 315 to 400 nm are absorbed in the test solution.
As described above, the test liquid containing the ultraviolet blocking agent and sunscreen of the present invention can strongly absorb UVB and UVA, which are ultraviolet components that cause sunburn, as compared with the control liquid. This also shows that the test liquid containing the ultraviolet blocking agent and sunscreen agent of the present invention has an excellent ultraviolet blocking effect and sunscreen effect.

It is a graph which shows the measurement result of the absorption spectrum of the test solution used in the Example, and a control solution.

Claims (4)

  An ultraviolet blocker comprising an extract of petals of a rose family plant belonging to the family Rosaceae.   A sunscreen characterized by containing an extract of petals of the genus Rosaceae.   A cosmetic raw material comprising the ultraviolet blocking agent according to claim 1 or the sunscreen agent according to claim 2.   A cosmetic comprising the ultraviolet blocking agent according to claim 1 or the sunscreen agent according to claim 2.

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