JP6113871B2 - Cosmetics in which a water-insoluble sponge is impregnated with a cosmetic composition having an ultraviolet blocking function - Google Patents

Description

  The present invention relates to a cosmetic composition having an excellent ultraviolet blocking function provided by impregnating a water-insoluble sponge. More specifically, according to the present invention, the cosmetic composition provided by impregnating the water-insoluble sponge has a lower ultraviolet blocking effect than the total content of the ultraviolet blocking agent contained in the cosmetic composition. The present invention relates to a cosmetic composition that recognizes the problems and solves such problems, and exhibits an excellent ultraviolet blocking effect, and a cosmetic in which the cosmetic composition is impregnated in a water-insoluble sponge.

  This application is filed with Korean Patent Application No. 10-2015-0004142 filed on January 12, 2015, Korean Patent Application No. 10-2015-0013647 filed on January 28, 2015, and August 4, 2015 application. All contents disclosed in the specification and drawings of the corresponding application claiming priority based on Korean Patent Application No. 10-2015-0109816 are incorporated in this application.

  In recent years, the risk of exposure to ultraviolet rays is increasing due to the destruction of the ozone layer due to environmental pollution. Since ultraviolet rays act as the main cause of erythema, edema, freckles, skin cancer, etc. on the skin, development of products that protect the skin from ultraviolet rays is required. In particular, as life becomes richer, it is required not only to protect skin from ultraviolet rays in daily life, but also to protect skin from ultraviolet rays during leisure activities such as skiing, golf and water sports. A lot of research has been done.

  In general, ultraviolet rays are divided into three regions according to wavelength. The wavelength of 200 to 290 nm is ultraviolet C (UVC), the wavelength of 290 to 320 nm is ultraviolet B (UVB), and the wavelength of 320 to 400 nm is ultraviolet A (UVA). ). Among them, UVC disappears without reaching the ground surface while passing through the ozone layer. On the other hand, UVB penetrates into the epidermis of the skin and causes erythema, freckles and edema, and UVA penetrates into the dermis of the skin and induces skin aging and skin irritation such as promotion of skin cancer, wrinkles and melanogenesis. It has been known.

  Long-wavelength ultraviolet (UVA) has been attracting attention as an object to be warned because it promotes skin aging due to protein denaturation in the dermis layer, expansion of capillaries, destruction of nucleic acids (DNA), and the like. On the other hand, medium-wavelength ultraviolet rays (UVB) that are almost absorbed by the epidermis of the skin are sometimes called harmful ultraviolet rays because they act rapidly on the epidermis and cause burns. Long-wave ultraviolet rays hit the skin all year round, but since there is no subjective symptom, the skin becomes old without knowing it.

  Products with various sun protection factors (SPFs) and UV protection grades (PAs) with known sun exposure risks and increased interest in UV screening products Has been released.

  On the other hand, among cosmetic dosage forms, liquid cosmetics are preferred because they are easy to stretch and have a good feeling of use. However, they have to be stretched for the hand and are inconvenient to use and have poor portability. . Therefore, in order to solve such problems, a liquid cosmetic composition in the form of a low-viscosity emulsifier is obtained by using styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile butadiene rubber (NBR). acrylonitrile-butadiene rubber, acrylonitrile-butadiene styrene (ABS; acrylonitrile-butadiene styrene), polyethylene (PE; polyethylene), polyvinyl alcohol (PVA; polyvinyl alcohol), polyethylene vinyl in (V); polyrethan ) In that impregnating the foamed water-insoluble sponges, etc, use and portable developed a simple cosmetic. Among them, cosmetic products impregnated with polyurethane sponge are widely used.

  On the other hand, the present inventors tried to give an ultraviolet blocking function to a cosmetic composition impregnated in a water-insoluble sponge. However, when a cosmetic composition having an ultraviolet blocking function is impregnated in a water-insoluble sponge, It has been found that there is a problem that the UV blocking index / grade actually exerted is lower than the UV blocking index / grade expected from the total content of UV blocking agents contained in the composition.

  Furthermore, the present inventors have found that such an oil-soluble organic ultraviolet blocking agent that is in direct contact with the water-insoluble sponge is adsorbed on the water-insoluble sponge, and as a result, the ultraviolet blocking agent is not discharged at the same concentration as before the impregnation. Clarified that there is a cause.

  The problem to be solved by the present invention is given by selecting the composition of the ultraviolet blocking agent and / or the phase of the cosmetic composition so that the oil-soluble organic ultraviolet blocking agent does not adsorb on the water-insoluble sponge. The cosmetic composition that not only fully exhibits the UV blocking function, but also exhibits an excellent UV blocking function (SPF 30 or higher, PA ++ or higher), and does not cause white turbidity, and water impregnated with the cosmetic composition An object of the present invention is to provide a cosmetic containing an insoluble sponge, and a method for producing the cosmetic composition and / or cosmetic.

  More specifically, the problem to be solved by the present invention is, firstly, in a cosmetic composition containing an ultraviolet blocking agent, the cosmetic composition is provided by being impregnated in a water-insoluble sponge, and the cosmetic composition A cosmetic composition comprising substantially no oil-soluble organic UV-blocking agent in the outermost phase of the product, or an oil-soluble organic UV-blocking agent present in the outermost phase but not adsorbed on the water-insoluble sponge Is to provide.

  Further, the cosmetic composition is provided with a cosmetic composition characterized by having SPF of 30 or more and PA ++ or more.

  Further, the cosmetic composition is characterized in that the ultraviolet blocking agent is an inorganic ultraviolet blocking agent.

Moreover, the said ultraviolet blocker is any one or more of the following, The cosmetic composition characterized by the above-mentioned is provided.
I. Water-soluble or water-dispersible organic UV blocker;
II. An organic UV blocker converted from water insoluble to water soluble or water dispersible; or
III. Encapsulated organic UV blocker.

 Further, the cosmetic composition is characterized in that the dosage form of the cosmetic composition is an aqueous phase alone, an oil-in-water emulsion, or a multiple emulsion in which the outermost phase is an aqueous phase.

 Further, the cosmetic composition is an oil-in-water type or multiple emulsion, and contains a cosmetic composition comprising an oil-soluble organic ultraviolet blocking agent in addition to the outermost phase of the cosmetic composition. provide.

  The water-insoluble sponge is formed of a hydrophobic monomer polymer containing styrene butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR) or acrylonitrile butadiene rubber (NBR). A cosmetic composition is provided.

  In addition, the cosmetic composition is a foundation, which provides a cosmetic composition.

   The problem to be solved by the present invention is, secondly, in a cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge, wherein the cosmetic composition contains an ultraviolet blocking agent, To provide a cosmetic characterized in that an oil-soluble organic UV-blocking agent is substantially absent in the outermost phase or contains an oil-soluble organic UV-blocking agent that is present in the outermost phase but is not adsorbed by a water-insoluble sponge. is there.

Further, in a cosmetic comprising a water-insoluble sponge and a cosmetic composition to be impregnated in the water-insoluble sponge, the cosmetic composition includes any one or more of the following organic ultraviolet blocking agents:
I. Water-soluble or water-dispersible organic UV blocker;
II. An organic UV blocker converted from water insoluble to water soluble or water dispersible; or
III. Encapsulated organic UV blocker,
Provided is a cosmetic comprising an oil-soluble organic ultraviolet blocking agent in an amount of less than 10% of the total weight of the organic ultraviolet blocking agent contained in the cosmetic composition.

  In addition, the cosmetic composition further provides a cosmetic characterized by further including an inorganic ultraviolet blocking agent.

  In addition, the cosmetic composition is provided with a cosmetic product characterized in that the dosage form of the cosmetic composition is an aqueous phase alone, an oil-in-water emulsion, or a multiple emulsion in which the outermost phase is an aqueous phase.

  The water-insoluble sponge is formed of a hydrophobic monomer polymer containing styrene butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), or acrylonitrile butadiene rubber (NBR). To provide cosmetics.

  Further, the cosmetic composition provides a cosmetic characterized in that it is a foundation.

  In order to solve the above-mentioned problems, the present invention provides a cosmetic composition having a composition and / or phase in which an oil-soluble organic ultraviolet blocking agent is not adsorbed on a water-insoluble sponge.

  More specifically, the present invention provides a cosmetic composition comprising an ultraviolet blocking agent, wherein the cosmetic composition is provided by being impregnated in a water-insoluble sponge, and an oil-soluble organic ultraviolet blocking agent is provided in the outermost phase of the cosmetic composition. It contains an oil-soluble organic UV blocker that is substantially absent or present in the outermost phase but does not adsorb to the water-insoluble sponge, and exhibits an excellent UV blocking effect, preferably SPF 30 or higher and PA ++ or higher. A cosmetic composition is provided. Moreover, the manufacturing method of the said cosmetics composition is provided.

  Further, the present invention provides a cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge, wherein an oil-soluble organic ultraviolet blocking agent is not substantially present in the outermost phase of the cosmetic composition. Or a cosmetic product characterized by including an oil-soluble organic ultraviolet blocking agent that is present in the outermost phase but not adsorbed by the water-insoluble sponge, and that exhibits an excellent ultraviolet blocking effect, preferably SPF 30 or higher and PA ++ or higher. To do. Moreover, the manufacturing method of the said cosmetics is provided.

[Cosmetic composition]
The cosmetic composition according to the present invention contains an ultraviolet blocking agent.

  In the present specification, the term “ultraviolet ray blocking agent” includes any component that can be blocked by a mechanism such as scattering, reflection or absorption of ultraviolet rays that reach the skin, for example, an inorganic ultraviolet ray blocking agent. Organic UV screening agents and mixtures thereof.

  Therefore, the cosmetic composition according to the present invention may include an organic ultraviolet blocking agent, an inorganic ultraviolet blocking agent, or a mixture thereof.

  The organic ultraviolet blocking agent has an advantage of having an ultraviolet absorption effect and no white turbidity, and is classified into an oil-soluble, water-soluble, oil-dispersible or water-dispersible organic ultraviolet blocking agent. For example, as oil solubility or oil dispersibility, 4-methylbenzylidene camphor, disodium phenyldibenzimidazole tetrasulfonate, diethylhexylbutamide triazone, methylenebis-benzotriazolyltetramethylbutylphenol, ethylhexyldimethyl PABA, glyceryl PABA, Drometrizole, drometrizol trisiloxane, digallotrioleate, 3- (4-methylbenzylidene) -camphor, methylanthranilate, bis-ethylhexyloxyphenol methoxyphenyltriazine, diethylaminohydroxybenzoylhexylbenzoate, benzophenone-3, Benzophenone-4, benzophenone-8, butylmethoxydibenzoylmethane, synoxate, ethylhexyl Riazone, octylmethoxycinnamate, octocrylene, octyldimethyl PABA, octylsalicylate, oxybenzone, synoxate, octyltriazone, ethylhexylmethoxycinnamate, ethylhexylsalicylate, paraaminobenzoic acid, homosalate, isoamyl-p-methoxycinnamate, Examples include bisethylhexyloxyphenol methoxyphenyl triazine, and polysilicone-15. Examples of water-soluble or water-dispersible properties include 2-phenylbenzimidazole-5-sulfonic acid, terephthalylidene dicamphor sulfonic acid, and salts thereof. However, it is not limited to these.

  In addition, although the inorganic ultraviolet blocking agent has ultraviolet scattering and reflection effects, it can cause white turbidity. Examples thereof include, but are not limited to, titanium dioxide, zinc oxide and zirconium oxide, and oxide (calcium / cerium) (Calcium Cerium Oxide).

  The present inventors have found that the problem that the ultraviolet blocking function provided by the cosmetic composition according to the present invention cannot be fully exerted is that the oil-soluble organic ultraviolet blocking agent is adsorbed on the water-insoluble sponge. The present inventors have sought to solve the above-mentioned problems through adjustment of the content or form of the oil-soluble organic ultraviolet blocking agent in the outermost phase of the cosmetic composition.

  Therefore, the UV-blocking agent other than the oil-soluble organic UV-blocking agent contained in the cosmetic composition of the present invention is of the kind / dispersibility (for example, water-soluble or water-dispersible organic UV-blocking agent, water-insoluble to water-soluble or (Including organic UV-blockers converted to water dispersibility, inorganic UV-blockers, etc.), content or position within the cosmetic composition belongs to the industry regardless of adsorption to water-insoluble sponge A normal engineer will be able to choose appropriately.

In addition, the cosmetic composition according to the present invention may contain any ultraviolet blocking agent other than the outermost phase. For example, the type of ultraviolet blocking agent / dispersibility / water / oil solubility (for example, oil solubility or oil dispersion). Organic UV-blocking agent, water-soluble or water-dispersible organic UV-blocking agent, organic UV-blocking agent converted from water-insoluble to water-soluble or water-dispersible, or inorganic UV-blocking agent, ie oil-soluble or oil-dispersed Any organic UV-blocking agent may be used as long as it is a UV-blocking agent usually used in the art regardless of the content. For example, in the oil-in-water type (O ₁ / W / O ₂ ) or the water-in-oil-in-water type (W / O ₁ / W), the “oil phase (O ₁ )” includes an oil-soluble organic ultraviolet blocking agent. Any UV blocker can be used.

  In the present specification, the term “impregnation” means an operation of impregnation, and can be diverted to terms commonly used in the art such as penetration, adhesion, and absorption, and more specifically, a water-insoluble sponge contains a cosmetic composition. It can be in the form. However, the physical pressure applied to apply the cosmetic composition to the skin (for example, 3 bar or less) discharges, desorbs, separates or discharges the impregnated substance (cosmetic composition) (from the water-insoluble sponge). Limit as much as possible. Here, the physical pressure normally applied to apply the cosmetic composition to the skin can be applied using a finger or a tool (eg, a puff).

  In this specification, “adsorption” means that a substance is adhered, bound, bound, or concentrated, and more specifically, an oil-soluble organic ultraviolet blocking agent is adhered, bound, bound to a water-insoluble sponge. Depending on the physical pressure applied to apply the cosmetic composition to the skin (eg 3 bar or less) (to oil-soluble organic UV blocker to water-insoluble sponge) This means that the adsorbed state is maintained and the substance (oil-soluble organic ultraviolet blocking agent) adsorbed by the physical pressure is not discharged, desorbed, separated or discharged (from the water-insoluble sponge). Here, the physical pressure normally applied to apply the cosmetic composition to the skin can be applied using a finger or a tool (eg, a puff).

  In one embodiment, the outermost phase of the cosmetic composition according to the present invention is substantially free from oil-soluble organic ultraviolet light blocking agents.

In the present specification, the “outermost phase” means a portion having the largest direct contact surface with the water-insoluble sponge when the cosmetic composition is impregnated in the water-insoluble sponge. For example, when it consists of a single phase (that is, a single aqueous phase or a single oil phase), the single phase is the outermost phase, and in the case of a water-in-oil emulsion, the oil phase is the outermost phase, and the oil-in-water emulsion In the case of, the water phase becomes the outermost phase. When a multiple emulsion is described as “(X) / (X) n / Y” (where X and Y are an aqueous phase or an oil phase, and an aqueous phase is abbreviated as “W” The phase can be abbreviated as “O.” The above “n” is 1 or more), “Y” corresponds to the outermost phase, and as an example, in the oil-in-water type (O ₁ / W / O ₂ ) The outer phase is “oil phase (O ₂ )”.

  In the present specification, “substantially absent” means that the content present in the outermost phase of the cosmetic composition is less than 10% by weight, less than 9% by weight, and 8% by weight of the total weight contained in the cosmetic composition. Less than, 7% by weight, 6% by weight, 5% by weight, 4% by weight, 3% by weight, 2% by weight, 1% by weight, 0.5% by weight, 0.05% by weight Can be less than 0.0005% by weight, and most desirably less than 0.00001% by weight. As an example, the content of the oil-soluble organic UV blocker contained in the outermost phase of the cosmetic composition according to the present invention is less than 10% by weight compared to the total content of the organic UV blocker contained in the cosmetic composition, 9 Less than 8%, less than 7%, less than 6%, less than 5%, less than 4%, less than 3%, less than 2%, less than 1%, less than 0.5% , Less than 0.05 wt%, less than 0.0005 wt%, or most desirably less than 0.00001 wt%. As another example, in the cosmetic composition according to the present invention, when the outermost phase contains only an inorganic ultraviolet blocking agent as an ultraviolet blocking agent and does not contain any organic ultraviolet blocking agent, it corresponds to “substantially absent”. Can do. As another example, in the cosmetic composition according to the present invention, the outermost phase may contain only a water-soluble, water-dispersible organic UV-blocking agent as the UV-blocking agent, and may not contain any oil-soluble organic UV-blocking agent. May be “substantially non-existent”.

  In another aspect, the outermost phase of the cosmetic composition according to the present invention may include an oil-soluble organic ultraviolet blocking agent that does not adsorb to the water-insoluble sponge.

  In this specification, “does not adsorb” means “weight of UV-blocking agent adsorbed on water-insoluble sponge (oil-soluble organic)” / “UV-blocking contained in outermost phase of cosmetic composition (oil-soluble organic)” The value converted to “weight of agent” × 100 (%) is less than 10% by weight, less than 9% by weight, less than 8% by weight, less than 7% by weight, less than 6% by weight, less than 5% by weight, less than 4% by weight, 3 Less than 2%, less than 2%, less than 1%, less than 0.5%, less than 0.05%, less than 0.0005%, or most desirably less than 0.00001% by weight. The (oil-soluble organic) ultraviolet blocking agent means one or more (oil-soluble organic) ultraviolet blocking agents contained in the cosmetic composition.

  The “oil-soluble organic UV-blocking agent present in the outermost phase but not adsorbing to the water-insoluble sponge” according to the present invention is realized by adjusting the phase of the cosmetic composition and / or selecting the composition of the oil-soluble organic UV-blocking agent. be able to.

  More specifically, in the phase selection of the cosmetic composition, the effect of the present invention can be achieved by configuring the outermost phase of the cosmetic composition as an aqueous phase. Examples of the dosage form of the cosmetic composition in which the outermost phase is an aqueous phase include, as described above, for example, a single aqueous phase (aqueous phase alone), an oil-in-water type, or a multiple emulsion ("(X) / (X) n / Y ") and Y is an aqueous phase (ie, multiple emulsions in which the outermost phase is an aqueous phase). When the outermost phase of the cosmetic composition is an aqueous phase, the oil-soluble organic UV-blocking agent present in the outermost phase of the aqueous phase is preferably water-soluble or water-dispersible, or converted to water-soluble or water-dispersible. If it is oil-soluble or oil-dispersible, it is preferably modified so as to be dispersible in the aqueous phase by a method such as encapsulation.

  In addition, in selecting the composition of the oil-soluble organic ultraviolet blocking agent contained in the cosmetic composition, an oil-soluble organic ultraviolet blocking agent modified so as not to be adsorbed on the water-insoluble sponge can be used.

  Here, “modification” is meant to encompass all chemical or physical deformations of the organic UV blocker, for example, between the oil-soluble organic UV blocker present in the outermost phase and the water-insoluble sponge. A method for preventing direct contact (for example, encapsulation of an oil-soluble organic UV blocker), or a method for preventing an adsorption reaction from occurring even when the oil-soluble organic UV blocker and a water-insoluble sponge contact (for example, a compound) Structural deformation, water-soluble / water-dispersible deformation, etc.).

A cosmetic composition according to an embodiment of the present invention includes any one or more of the following organic ultraviolet blocking agents:
I. Water-soluble or water-dispersible organic UV blocker;
II. An organic UV blocker converted from water insoluble to water soluble or water dispersible; or
III. Encapsulated organic UV blocker,
Less than 50%, less than 40%, less than 30%, less than 20%, less than 10%, less than 9% by weight, less than 8% by weight of the total weight of the organic UV blocker contained in the cosmetic composition. Less than 7%, less than 6%, less than 5%, less than 4%, less than 3%, less than 2%, less than 1%, less than 0.5%, less than 0.05%, It may be included at less than 0.0005 wt%, or most desirably less than 0.00001 wt%.

  Optionally, an inorganic ultraviolet blocking agent can be further included.

  The cosmetic composition according to the present invention has an excellent ultraviolet blocking effect, and desirably has an ultraviolet blocking index (SPF) of 30 or higher and / or an ultraviolet A blocking index (PFA) of 4 or higher, and an ultraviolet A blocking rating. (PA) ++ or higher. Moreover, the cloudiness phenomenon hardly occurs.

  The “ultraviolet ray blocking index (SPF)” is an index indicating the blocking effect of a product that blocks UVB. The minimum amount of erythema generated when a UV blocking product is applied is the same as when the UV blocking product is not applied. It is the value divided by the minimum amount of erythema produced. The “minimum erythema dose (MED)” refers to the minimum ultraviolet irradiation dose at which erythema appears in the entire irradiation region within 16 to 24 hours after UVB is applied to human skin. As a method of measuring the UV blocking index, select subjects, measure the minimum erythema amount at the site where the product is not applied, measure the minimum erythema amount at the product application site, select the light source, standard sample, product application amount, product application area and Irradiation site section, light intensity increase, UV blocking index calculation, and UV blocking index display method, Korea Food and Drug Safety Notification No. 2013-28, April 5, 2013, “Rules on Functional Cosmetics Examination” In accordance with the notification of the measurement method of Chapter 2 UV Blocking Index (SPF) in Appendix 3.

  The “ultraviolet ray A blocking index (PFA)” is an index indicating the blocking effect of a UVA blocking product. The minimum continuous immediate blackening amount that occurs when the UV blocking product is applied is applied to the UV blocking product. It is the value divided by the minimum continuous immediate blackening amount that occurred when it did not. The “Minimum Persistent Pigment Darkening Dose (MPPD)” is the minimum amount of light blackening that is recognized over the entire irradiation area within 2 to 4 hours after UVA is applied to human skin. Refers to the amount of UV irradiation. Further, “ultraviolet ray A blocking grade (PF)” means the degree of UVA blocking effect. PFA2 or higher can be expressed as PA, PFA2 or higher and lower than 4 as PA +, PFA4 or higher and lower than 8 as PA ++, and PFA8 or higher can be expressed as PA ++ (provided that the PFA value is rounded down to the nearest whole number) . As a method for measuring the UV A blocking index, the selection of subjects, the test site, the measurement of the minimum continuous immediate blackening amount before the test, the measurement of the non-product application and the minimum continuous instantaneous blackening amount of the application site, the light source selection, the standard sample, Calculation of product application amount, product application area and irradiation site division, increase in light intensity, and UV A blocking index, Korea Food and Drug Safety Notification No. 2013-28, April 5, 2013, “Functional Cosmetics Follow the notification of the measurement method of Chapter 4 UV A blocking index in Appendix 3 of “Regulations for Examination”.

  While the cosmetic composition according to the present invention exhibits an excellent ultraviolet blocking effect, the cloudiness phenomenon hardly occurs. As an example, the inorganic ultraviolet blocking agent contained in the cosmetic composition according to the present invention is 15 wt% or less, 14 wt% or less, 13 wt% or less, 12 wt% or less, 11 wt% or less of the total weight of the cosmetic composition. 10% or less, 9% or less, 8% or less, 7% or less, 6% or less, 5% or less, 4% or less, 3% or less, 2% or less, or 1% by weight It can be: If an inorganic ultraviolet blocking agent exceeding 15% by weight of the total cosmetic composition weight is used, white turbidity may be a problem.

  The cosmetic composition according to the present invention contains a dye, an antioxidant, an activator, a moisturizer, a drug, a sequestering agent, a polyhydric alcohol, an antiseptic, as necessary, as long as it does not interfere with the effect of suppressing adsorption to a water-insoluble sponge. A person skilled in the art can easily mix agents and fragrances.

  The cosmetic composition according to the present invention can be produced by a conventional method known in the art in consideration of the type, content and dosage form of the components.

  The cosmetic composition according to the present invention is a conventional composition known in the art in consideration of the type and content of ingredients contained in the cosmetic composition, the dosage form of the cosmetic composition, the type of water-insoluble sponge, and the like. The water-insoluble sponge can be impregnated by a method.

  The cosmetic composition (or cosmetic product) according to the present invention includes, for example, a makeup primer, makeup base, foundation, skin cover, lipstick, lip gloss, face powder, lip liner pencil, eyebrow pencil, eye shadow, cheek color, This includes, but is not limited to, compact powder, twin cake, fact, powder fact, eyebrow, eye shadow, concealer, blusher, powder foundation or air lease.

[Water-insoluble sponge]
The water-insoluble sponge according to the present invention can be used without limitation as long as it is commonly used in the art for impregnating cosmetic compositions. For example, styrene butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), It may be one obtained by foaming a polymer such as acrylonitrile butadiene rubber (NBR), acrylonitrile-butadiene styrene (ABS), polyethylene (PE), polyvinyl alcohol (PVA), ethylene vinyl alcohol (EVA), polyurethane (PU).

Among the water-insoluble sponges according to the present invention, those which exhibit the effect of preventing the adsorption of the cosmetic composition can be water-insoluble sponges obtained by foaming a hydrophobic monomer polymer, such as styrene butadiene rubber (SBR), butadiene rubber (BR), and the like etc. acrylonitrile-butadiene rubber (NBR) is.

  The step of impregnating the water-insoluble sponge with the cosmetic composition according to the present invention can be performed by a conventional method known in the art.

[Cosmetics]
The present invention provides a cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge.

  Since the water-insoluble sponge and the cosmetic composition impregnated therein are described above, redundant description is omitted.

In particular, according to one embodiment, the cosmetic composition to be impregnated into the water-insoluble sponge comprises any one or more of the following organic ultraviolet blocking agents:
I. Water-soluble or water-dispersible organic UV blocker;
II. An organic UV blocker converted from water insoluble to water soluble or water dispersible; or
III. Encapsulated organic UV blocker,
Less than 50%, less than 40%, less than 30%, less than 20%, less than 10%, less than 9% by weight, less than 8% by weight of the total weight of the organic UV blocker contained in the cosmetic composition. Less than 7%, less than 6%, less than 5%, less than 4%, less than 3%, less than 2%, less than 1%, less than 0.5%, less than 0.05%, It may be included at less than 0.0005 wt%, or most desirably less than 0.00001 wt%.

  Optionally, an inorganic ultraviolet blocking agent can be further included.

  In addition to the water-insoluble sponge and the cosmetic composition impregnated therein, the cosmetics according to the present invention can be appropriately added (for example, puffed) by an ordinary person skilled in the art.

  The cosmetic composition having an ultraviolet blocking function according to the present invention prevents the ultraviolet blocking agent from adsorbing to the water-insoluble sponge even when impregnated in the water-insoluble sponge, and thus the ultraviolet blocking agent contained in the cosmetic composition. Therefore, it is possible to provide a cosmetic product that can fully exhibit the expected ultraviolet blocking effect (ultraviolet blocking index / grade).

It is the figure which showed the cosmetics by which the foundation was impregnated with the water-insoluble sponge.

  Hereinafter, in order to help the understanding of the present invention, examples will be described in detail. However, the embodiments according to the present invention can be modified in many other forms, and the scope of the present invention should not be construed to be limited to such embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

<Example> Manufacture of water-in-oil foundation containing organic ultraviolet blocking agent A water- in-oil foundation was manufactured with the components and contents described in Table 1 below.
In Comparative Example 1, oil containing an oil-soluble organic ultraviolet blocking agent (ethylhexylmethoxycinnamate (EHMC), isoamyl P-methoxycinnamate (IAMC), ethylhexyl salicylate (EHS)) and an inorganic ultraviolet blocking agent (titanium dioxide). A water-in-water foundation was produced. On the other hand, in Examples 1 and 2, a water-in-oil foundation containing a water-soluble organic ultraviolet blocking agent (phenylbenzimidazolesulfonic acid (PBSA)) and an inorganic ultraviolet blocking agent (titanium dioxide) was produced.

The water-in-oil foundation was manufactured as follows.
An oil phase component and a thickening agent were put in an oil phase tank, and heat was applied to 80 ° C. to make it uniform, and then a pigment was added and dispersed. Add water phase components to the water phase tank, heat at 80 ° C to completely dissolve the raw material, add it to the oil phase tank where the pigment is dispersed, emulsify with a homomixer, block low viscosity UV rays An oil was produced. After filling the contents in a 40 ml stability container and storing in a chamber at 25 ° C for 1 day or longer, the Brookfield LVII viscometer was operated at 30 rpm for 1 minute using a spindle No. 4 and then the viscosity was measured at 25 ° C. The measurement result was 4,000 cps.

<Experimental Example> Adsorption test of UV blocker on water-insoluble sponge After impregnating 15 g each of the foundations of Comparative Example 1-2 and Example 1-2 in SBR, NBR, and PU, respectively, Stored for more than a day. After removing the unimpregnated foundation from the surface of the sponge, the test was conducted as follows.

  First, sponges impregnated with the foundations of Comparative Example 1-2 and Example 1-2 were respectively pressed with fingers to obtain foundations.

  In accordance with Korea Food and Drug Safety Notification No. 2013-28 Functional Cosmetic Standards and Test Method (KFCC), the foundation before impregnating the sponge and the foundation obtained from the sponge are each dissolved in a solvent, and ultraviolet absorption is performed by liquid chromatography. Tested with a photometer, ethylhexylmethoxycinnamate (EHMC), phenylbenzimidazolesulfonic acid (PBSA), ethylhexyl salicylate (EHS), isoamyl P-methoxycinnamate (IAMC) peak area AT and standard peak The area As was obtained, and the change value before and after the impregnation was analyzed.

Amount of ethylhexyl methoxycinnamate (mg) = AT / As × ethylhexyl methoxycinnamate standard amount (mg)
Amount of phenylbenzimidazolesulfonic acid (mg) = AT / As × Amount of phenylbenzimidazolesulfonic acid standard product (mg)
Amount of ethylhexyl salicylate (mg) = AT / As × Amount of standard ethylhexyl salicylate (mg)
Amount of isoamyl P-methoxycinnamate (mg) = AT / As × amount of isoamyl P-methoxycinnamate standard product (mg)
The results were as shown in Table 2 (Comparative Example 1) and Table 3 (Example 1).

Further, after applying uniformly to artificial skin using a sponge impregnated with the foundations of Comparative Example 1-2 and Example 1-2 and leaving for 10 minutes, a UV blocking index measuring machine (SPF- 290S), SPF and PFA values were measured.
The results are shown in Table 4 (in-vitro SPF and in-vitro PFA values for Comparative Example 1-2 and Example 1-2).

  As a result of the adsorption test of the UV-blocking agent on the water-insoluble sponge, when an oil-soluble organic UV-blocking agent such as ethylhexyl methoxycinnamate, isoamyl P-methoxycinnamate and ethylhexyl salicylate is present in the oil phase (comparative example) 1-2) It was found that the amount obtained by being adsorbed by the water-insoluble sponge was greatly reduced, and the UV blocking index was markedly lowered. Further, it was found that the content of the main component based on the UV-blocking functional cosmetic method did not reach 90%, and there was a legal problem. On the other hand, it was found that when a water-soluble or water-dispersible UV blocker such as phenylbenzimidazole sulfonic acid was used (Example 1-2), it was completely detected without being adsorbed by the water-insoluble sponge. . Furthermore, it was found that the excellent ultraviolet blocking effect of SPF30 or higher and PFA4 or higher is exhibited.

  In the case of a water-insoluble sponge, a considerable amount of ultraviolet blocking agent is adsorbed in SBR and NBR, and in the case of PU, although ultraviolet blocking agent is adsorbed, it is relatively less than SBR and NBR, so that SBR or NBR sponge is impregnated. An ultraviolet blocking effect superior to that of the case was obtained.

  The cosmetic composition having an ultraviolet blocking function according to the present invention prevents the ultraviolet blocking agent from adsorbing to the water-insoluble sponge even when impregnated in the water-insoluble sponge, and thus the ultraviolet blocking agent contained in the cosmetic composition. Therefore, it is possible to provide a cosmetic product that can fully exhibit the expected ultraviolet blocking effect (ultraviolet blocking index / grade).

Claims (5)

In a cosmetic comprising a water-insoluble sponge formed of a hydrophobic monomer polymer and a cosmetic composition impregnated in the water-insoluble sponge,
The cosmetic composition, organic ultraviolet rays contained include water-soluble or water-dispersible organic sunscreen agent, and do not contain any oil-soluble organic UV screening agent or oil-soluble organic UV screening agent in the cosmetic composition A cosmetic product comprising an amount of less than 10% of the total weight of the blocking agent. The cosmetic according to claim 1, wherein the cosmetic composition further comprises an inorganic ultraviolet blocking agent. The cosmetic product according to claim 1, wherein the outermost phase of the dosage form of the cosmetic composition is an oil phase . The cosmetic according to claim 1, wherein the hydrophobic monomer polymer is styrene butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), or acrylonitrile butadiene rubber (NBR ) .   The cosmetic according to claim 1, wherein the cosmetic composition is a foundation.