KR101542917B1 - Cosmetics of water insoluble sponge containing cosmetic compositions of sunscreen function - Google Patents

Abstract

The present invention relates to a cosmetic material composition having sunscreen function and cosmetics including a water insoluble sponge having the cosmetic material composition. A sunscreen effect (sun protection factor/grade) expected from a sunscreen agent which is included the cosmetic material composition is entirely showed because of improving a problem of a sunscreen agent to be absorbed onto the water insoluble sponge.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cosmetic composition containing a water-insoluble sponge and a UV-

The present invention relates to a cosmetic composition having an ultraviolet shielding function provided by impregnation with a water-insoluble sponge. More specifically, the present invention has been made in view of the fact that the organic UV blocking agent is adsorbed on a water-insoluble sponge, and thus the ultraviolet blocking effect exerted against the total content of the ultraviolet blocking agent contained in the cosmetic composition is inferior. Compositions and cosmetic compositions wherein such cosmetic compositions are impregnated with water-insoluble sponges.

Recently, the ozone layer has been destroyed due to environmental pollution and exposure to ultraviolet rays has been intensified. Such ultraviolet rays are a major cause of causing erythema, edema, freckles, and skin cancer in the skin. Accordingly, there has recently been a demand for development of a product that protects skin from ultraviolet rays. Especially, as the life becomes more and more, not only the desire to protect the skin from living ultraviolet rays but also the demand for protecting the skin from the ultraviolet rays is increasing as the leisure activity population such as skiing, golf, and bathing water is increased. Research is underway.

In general, ultraviolet rays are divided into three regions according to wavelength, ultraviolet C (UV-C) at a wavelength of 200-290 nm, ultraviolet B (UV-B) at a wavelength of 290-320 nm, The wavelength is classified as ultraviolet A (UV-A). UV-C passes through the ozone layer and disappears without reaching the surface. UV-B penetrates into the epidermis of the skin, causing erythema, freckles and edema. UV-A penetrates the skin's dermis and promotes skin cancer, wrinkles, and melanin formation, leading to skin aging and skin irritation.

Long-wavelength ultraviolet (UV-A) has been identified as the target of the boundary by promoting skin aging by protein denaturation in the dermis, capillary expansion, and destruction of DNA (DNA). On the other hand, the medium-wave ultraviolet (UV-B), which is mostly absorbed in the epidermis of the skin, is called harmful ultraviolet rays because it rapidly acts on the epidermis and burns. The long wavelength ultraviolet rays reach the skin all year round, but because they do not have any subjective symptoms, the skin becomes old without knowing oneself.

As the risk of exposure to sunlight became known, public interest in UV protection products increased, and accordingly, products with various sun protection factor (SPF) and protection grade of UVA (PA) Is being released.

Regarding the formulation of cosmetics, there is a problem that the liquid cosmetics are excellent in spreadability and feelings, and have a high preference, but are inconvenient in use and should not be portable. For solving such problems, a liquid cosmetic composition which is a low-viscosity emulsion is mixed with a styrene-butadiene rubber (SBR), a butadiene rubber (BR), an acrylonitrile-butadiene rubber (NBR), an ABS, a polyethylene (PE) ), EVA (ethylene vinyl acetate), PU (polyurethane) and the like, which have been impregnated with water-insoluble sponge and have been developed as a cosmetic which is easy to use and carry. Among them, cosmetics impregnated with polyurethane sponge have been popularly used .

However, when the cosmetic composition having an ultraviolet screening function is impregnated with a water-insoluble sponge, the organic ultraviolet screening agent that is in direct contact with the water-insoluble sponge is adsorbed on the water-insoluble sponge, It has been found that there is a problem that the organic UV blocking agent contained in the cosmetic composition is not sufficiently applied and the ultraviolet barrier index / grade expected from the cosmetic composition falls.

KR 10-1257628 B

Accordingly, a problem to be solved by the present invention is to select the composition of the ultraviolet screening agent and / or the phase of the cosmetic composition so that the organic ultraviolet screening agent does not adsorb to the water-insoluble sponge, And a cosmetic composition comprising the water-insoluble sponge impregnated with such a cosmetic composition.

In order to solve the above-mentioned problems, the present invention provides a composition and / or phase of a cosmetic composition wherein the organic UV blocking agent is not adsorbed on the water-insoluble sponge.

More specifically, in one aspect, the present invention provides a cosmetic composition comprising an ultraviolet screening agent, wherein the cosmetic composition is impregnated with a water-insoluble sponge, wherein the cosmetic composition is substantially free of organic ultraviolet screening agent And an organic ultraviolet screening agent present on the outermost surface but not adsorbed on the water-insoluble sponge.

Further, in another aspect, the present invention is characterized in that it contains an ultraviolet screening agent and contains an organic ultraviolet screening agent that is substantially absent on the outermost layer or is present in the outermost layer but is not adsorbed on the water-insoluble sponge There is provided a cosmetic comprising a water-insoluble sponge impregnated with a cosmetic composition.

The ultraviolet screening agent contained in the cosmetic composition according to the present invention is an organic ultraviolet screening agent having an ultraviolet absorbing effect, an inorganic ultraviolet screening agent such as a solid powder ultraviolet screening agent, or a mixture thereof.

In the present invention, the organic ultraviolet screening agent includes, for example, glyceryl paraben, drometrizol, dipaloyyl triolate, 3- (4-methylbenzylidene) -campa, methyl anthranilate, bis- Benzoquephenone-4, benzophenone-8, butylmethoxydibenzoylmethane, cyoxate, ethylhexyltriazone, octylmethoxycinnamate, octylphenoxyphenylacetate, Octyldimethylpivalate, octyl salicylate, oxybenzone, cyoxylate, octyltriazone, ethylhexylmethoxycinnamate, ethylhexylsalicylate, p-aminobenzoic acid, 2-phenylbenzimidazole-5 But are not limited to, sulfonic acid, homosalate, isoamyl-p-methoxycinnamate, bishexylhexyloxyphenol methoxyphenyltriazine, dromatrizolisiloxane, and polysilicon-15 Do not. In the present invention, the inorganic ultraviolet blocking agent may include, but is not limited to, titanium dioxide, zinc oxide and zirconium oxide, calcium cerium oxide, and the like.

In the specification according to the present invention, the term "substantially absent" means that the content of the organic ultraviolet screening agent present in the outermost layer of the cosmetic composition is less than 10% by weight based on the total weight of the organic ultraviolet screening agent contained in the cosmetic composition Less than 9 wt%, less than 8 wt%, less than 7 wt%, less than 6 wt%, less than 5 wt%, less than 4 wt%, less than 3 wt%, less than 2 wt% , Less than 0.05 wt%, less than 0.0005 wt%, or most preferably less than 0.00001 wt%. For example, in the cosmetic composition according to the present invention, the case where the cosmetic composition contains only an inorganic ultraviolet screening agent as an ultraviolet screening agent and does not contain an organic ultraviolet screening agent may also be included in this term.

In the context of the present invention, the term " most contralateral "may refer to the portion of the cosmetic composition that has the most direct contact with the water-insoluble sponge when impregnated with the water-insoluble sponge. For example, when the single phase is composed of a single phase (that is, single phase or single phase), the single phase is referred to as the outermost phase. In the case of the water-in-oil type emulsion, the outermost phase is the oil phase. Is referred to as '(X) / (X) n / Y' (where 'X' and 'Y' may be water phase or oil phase, Y 'is the outermost phase, for example, in the oil-in-water type (O ₁ / W / O ₂ ), the outermost phase is the "oil phase (O ₂₎ '.

The "organic UV blocking agent present in the outermost phase but not adsorbed on the water-insoluble sponge" according to the present invention can be realized by selecting the composition of the cosmetic composition and / or the organic UV blocking agent.

More specifically, the effect of the present invention can be achieved by constituting the outermost phase of the cosmetic composition as a water phase on the aspect of phase selection of the cosmetic composition. When the outermost phase is water-soluble, as described above, for example, a case where Y is a water phase in a single aqueous phase, a water-in-oil type or a multiple emulsion ('(X) / (X) n / Y') may be included. When the outermost phase of the cosmetic composition is water-based, the organic ultraviolet screening agent present in the outermost surface of the water-based phosphor is water-soluble or water-dispersible, or water-soluble or water-dispersible, or water-soluble or water- If it is oil-soluble or oil-dispersible, it is preferably modified to be dispersible in water phase by encapsulation or the like.

From the aspect of selecting the composition of the organic ultraviolet screening agent contained in the cosmetic composition, it is possible to use an organic ultraviolet screening agent which is not adsorbed on the water-insoluble sponge or an organic ultraviolet screening agent which is modified so as not to adsorb on the water- insoluble sponge. The term "modifying" encompasses both chemical and physical modifications of an organic sunscreen agent, including, for example, a method of preventing direct contact between an organic sunscreen agent and a water-insoluble sponge present in the outermost surface (e.g., encapsulation of an organic sunscreen agent) (Eg, modification of the compound structure, modification to water-soluble and water-dispersible properties), etc., in which the ultraviolet screening agent and the water-insoluble sponge are brought into contact with each other but the adsorption reaction does not occur.

In the specification according to the present invention, the term "not adsorbed" means a value obtained by converting the weight of the ultraviolet screening agent adsorbed on the water-insoluble sponge / weight of the organic ultraviolet screening agent contained in the cosmetic composition x 100 (%) Less than 10 wt%, less than 9 wt%, less than 8 wt%, less than 7 wt%, less than 6 wt%, less than 5 wt%, less than 4 wt%, less than 3 wt%, less than 2 wt% (Organic) ultraviolet screening agent is less than 0.5% by weight, less than 0.05% by weight, less than 0.0005% by weight, or most preferably less than 0.00001% by weight, Means weight.

In the cosmetic composition according to the present invention, any ultraviolet screening agent other than the outermost layer may be included, and any ultraviolet screening agent conventionally used in the art can be used regardless of the kind of ultraviolet screening agent, dispersibility, water, have. For example, in the multi emulsion, oil in water type (O ₁ / W / O ₂ ) or water in oil type (W / O ₁ / W), 'oil phase (O ₁ )' includes any ultraviolet screening agent Can be used.

The cosmetic composition according to the present invention can be used in cosmetics such as makeup primers, makeup bases, foundations, skin covers, lipsticks, lip gloss, face powders, lip liner pencils, eyebrow pencils, eye shadow, cheek color, compact powder, But are not limited to, powder facts, eyebrows, eye shadows, concealers, blushers, powder foundations or airless.

An antioxidant, an active agent, a moisturizing agent, a drug, a sequestering agent, a polyhydric alcohol, an antiseptic, a perfume, and the like may be added to the cosmetic composition according to the present invention within a range not hindering the adsorption inhibiting effect on the water- It can be easily compounded.

The water-insoluble sponge according to the present invention may be used without limitation as long as it is commonly used in the art for impregnating cosmetic compositions, and examples thereof include styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile- ABS, polyethylene (PE), polyvinyl alcohol (PVA), ethylene vinyl acetate (EVA), and polyurethane (PU). The insoluble sponge according to the present invention exhibits a remarkable inhibitory effect on the adsorption of the cosmetic composition, which can be a water-insoluble sponge obtained by foaming a hydrophobic monomer polymer. Examples thereof include styrene-butadiene rubber (SBR), butadiene rubber (BR) acrylonitrile-butadiene rubber).

The preparation of the cosmetic composition according to the present invention may be carried out according to a conventional method known in the art in consideration of the kind, content and formulation of the components. The process of impregnating the prepared cosmetic composition with a water-insoluble sponge may also be carried out according to a conventional method known in the art.

The cosmetic composition having an ultraviolet screening function according to the present invention prevents the ultraviolet screening agent from being adsorbed on the water-insoluble sponge even when the water-insoluble sponge is impregnated with the ultraviolet screening agent / Grade) of the cosmetic product can be provided.

Figure 1 shows a cosmetic wherein the foundation is impregnated with a water-insoluble sponge.

Hereinafter, embodiments of the present invention will be described in detail to facilitate understanding of the present invention. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the following embodiments. Embodiments of the invention are provided to more fully describe the present invention to those skilled in the art.

< Example > Containing organic sunscreen Water type  Foundation manufacturing

A water-in-oil type foundation was prepared with the components and contents shown in Table 1 below.

In Comparative Example 1, an oil-soluble organic sunscreen (EHMC, isoamyl P-methoxycinnamate (IAMC), hexylhexylsalicylate (EHS)) and an inorganic sunscreen (titanium dioxide) In contrast, in Example 1, a water-in-oil type foundation was prepared containing a water-soluble organic UV blocking agent (phenylbenzimidazole sulfonic acid (PBSA)) and an inorganic UV blocking agent (titanium dioxide).

A water-in-oil type foundation was prepared as follows:

The oil component and the thickening agent were put in an oil bath, and the mixture was heated at 80 DEG C to make it uniform, and then the pigment was added and dispersed. The water component was added to the water tank, and the raw material was completely dissolved by heating at 80 ° C, and then added to the oil bath in which the pigment was dispersed and emulsified with a homomixer to prepare a low-viscosity ultraviolet blocking emulsion. After filling the contents into a 40 ml stability vessel, it was stored in a 25 ° chamber for more than one day and then spindled in a Brookfield LVII viscometer at 4 ° C for 1 minute at 30 rpm. Viscosity at 25 ° C It came out.

division Raw material name Content (g) Comparative Example 1 Example 1 Oil component Cyclopentasiloxane 17.0 25.0 Phenyl trimecicone 10.0 10.0 Caprylic / capric triglyceride 2.0 2.0 Dimethicone 2.0 2.0 To a solution of &lt; RTI ID = 0.0 & 7.5 0.0 Piggy-10 Dimethicone 3.0 3.0 Isoamyl P-methoxy cinnamate 0.5 0.0 To a solution of &lt; RTI ID = 3.0 0.0 Sorbitan sesquioleate 1.0 1.0 Incrementer Distearmonium hectorite Suitable amount Suitable amount Pigment Titanium dioxide 15.0 15.0 Mica 2.0 2.0 Yellow iron oxide 0.9 0.9 Red iron oxide 0.2 0.2 Black iron oxide 0.1 0.1 Awards Purified water to 100 to 100 Dipropylene glycol 5.0 5.0 Salt 1.0 1.0 Tromethamine 0.0 2.5 Phenylbenzimidazole sulfonic acid 0.0 4.0

<Experimental Example> Test for adsorption of a UV-blocking agent on a water-insoluble sponge

The foundation of Comparative Example 1 and Example 1 was impregnated with SBR, NBR, and PU, respectively, in an amount of 15 g, and then stored in a 25 ° chamber for more than one day. After removing the non-impregnated foundation from the sponge surface, proceed as follows.

First, foundation was impregnated with the foundation-impregnated sponges of Comparative Example 1 and Example 1 by hand, respectively.

In accordance with the Functional Cosmetics Standards and Test Methods (KFCC) No. 2013-28 of the Food and Drug Administration Notice, the foundation obtained before the impregnation with the sponge and the foundation prepared from the sponge were respectively dissolved in a solvent and subjected to an ultraviolet absorption spectrophotometer (EHMC), phenyl benzimidazolesulfonic acid (PBSA), hexyl hexylsalicylate (EHS), and isoamyl P-methoxy cinnamate (IAMC) peak areas AT and The peak area As of the standard product was determined and the values before and after impregnation were analyzed.

Amount (mg) of 7-hexylmethoxycinnamate to the amount of the standard product (mg) of 7-hexylmethoxycinnamate in AT / As X

Amount of phenylbenzimidazolesulfonic acid standard (mg) = AT / As X Amount of phenylbenzimidazole sulfonic acid standard (mg)

(Mg) = amount of chilled heptylsilicate standard in AT / As X (mg)

Amount of isoamyl P-methoxy cinnamate (mg) = amount of AT / As X isoamyl P-methoxy cinnamate standard (mg)

The results are the same as those of Table 2 (measured value of the ultraviolet screening agent of Comparative Example 1) and those of Table 3 (measured value of the ultraviolet screening agent of Example 1).

Sponge
EHMC IAMC EHS PBSA Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) I'm after I'm after I'm after I'm after SBR 7.5 100.7 60.5 0.5 102.6 78.3 3.0 105.7 71.5 - - - NBR 70.4 82.1 77.2 - PU 95.1 93.3 94.6 -

Sponge
EHMC IAMC EHS PBSA Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) Applicable amount
(g) Impregnation (%) I'm after I'm after I'm after I'm after SBR - - - - - - - - - 4 101.3 98.8 NBR - - - 102.5 PU - - - 100.6

Also, SPF values were measured using an ultraviolet barrier index measuring instrument (SPF-290S) after uniformly applying the foundation-impregnated sponges of Comparative Example 1 and Example 1 to artificial skin (vitroskin) respectively and leaving for 10 minutes.

The results are the same as in Table 4 (in-vitro SPF values for Comparative Example 1 and Example 1).

Comparative Example 1 Example 1 SPF SPF Precipitation 53.0 33.4 SBR 37.3 32.9 NBR 42.8 34.1 PU 50.3 33.2

As a result of the adsorption test of the water-insoluble sponge on the ultraviolet screening agent, when an oil-soluble organic ultraviolet screening agent such as ethylhexylmethoxycinnamate, isoamyl P-methoxycinnamate, and ethylhexylsalicylate was present in the oil phase (Comparative Example 1) It was found that the amount of adsorbed on the sponge greatly decreased. On the contrary, when a water-soluble or water-dispersible ultraviolet screening agent such as phenylbenzimidazole sulfonic acid was used (Example 1), it was detected without being adsorbed on the water-insoluble sponge.

However, in the case of water-insoluble sponge, the ultraviolet screening agent adsorption occurs largely in SBR or NBR. In the case of PU, the ultraviolet screening agent adsorption occurs, but it is relatively small compared to SBR or NBR and is superior to the case of impregnating SBR or NBR sponge I could.

Claims (8)

A cosmetic comprising a water-insoluble sponge and a cosmetic composition which is impregnated with the water-insoluble sponge,
The cosmetic composition
Which comprises any one or more of the following organic sunscreens:
(i) water-soluble or water-dispersible organic sunscreens;
(ii) an organic sunscreen agent that is converted from water insoluble to water-dispersible; or
(iii) an encapsulated organic sunscreen agent
Wherein the oil-soluble organic sunscreen agent comprises less than 10% of the total weight of the organic sunscreen ingredients contained in the cosmetic composition. The cosmetic composition according to claim 1, wherein the cosmetic composition further comprises an inorganic sunscreen agent. delete The cosmetic product according to claim 1, wherein the formulation of the cosmetic composition is a multi-emulsion in which the outermost phase of the water-only, water-in-oil type emulsion or cosmetic composition is water-based. delete The water-insoluble sponge according to claim 1, wherein the water-insoluble sponge is formed of a hydrophobic monomer polymer including styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile rubber (NR), or acrylonitrile-butadiene rubber (NBR) , cosmetics. The cosmetic product according to claim 1, wherein the cosmetic composition is a foundation.
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