WO2016114466A1

WO2016114466A1 - Cosmetic product comprising water-insoluble sponge impregnated with cosmetic composition having ultraviolet ray blocking function

Info

Publication number: WO2016114466A1
Application number: PCT/KR2015/008461
Authority: WO
Inventors: 박병규; 강성수; 박상욱; 김경섭
Original assignee: 주식회사 엘지생활건강
Priority date: 2015-01-12
Filing date: 2015-08-12
Publication date: 2016-07-21
Also published as: MY182398A; JP2016130237A; JP6113871B2

Abstract

The present invention relates to: a cosmetic composition having an ultraviolet ray blocking function; and a cosmetic product comprising a water-insoluble sponge impregnated with the cosmetic composition, and has an effect of alleviating the problem of a ultraviolet ray blocking agent being absorbed into the water-insoluble sponge, thereby completely exhibiting the ultraviolet ray blocking effect (ultraviolet ray protection factor/rating) which is predictable from the ultraviolet ray blocking agent contained in the cosmetic composition.

Description

Cosmetics impregnated with a water-insoluble sponge with a cosmetic composition having a sunscreen function

The present invention relates to a cosmetic composition having an excellent sunscreen function impregnated with a water-insoluble sponge. More specifically, the present invention is to solve the problem by recognizing that there is a problem that the sunscreen effect exhibited against the total content of the sunscreen in the cosmetic composition provided by impregnating the water-insoluble sponge is less than the total content The present invention relates to a cosmetic composition exhibiting excellent sunscreen effect and a cosmetic impregnated with a water-insoluble sponge.

The present application is filed in 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. Claims priority based on Korean Patent Application No. 10-2015-0109816 filed, all the contents disclosed in the specification and drawings of the application is incorporated in this application.

Recently, the ozone layer is destroyed due to environmental pollution, and ultraviolet exposure is intensified. Such ultraviolet rays act as a main cause of erythema, edema, freckles, and skin cancer. Accordingly, the development of a product that protects the skin from ultraviolet rays has recently been required. In particular, as life improves, as well as the desire to protect the skin from the ultraviolet rays of life, as the population of leisure activities such as skiing, golf, and sea bathing increases, the demand for protecting the skin from ultraviolet rays is increasing. Research is ongoing.

In general, ultraviolet light is divided into three regions according to the wavelength, with a wavelength of 200-290 nm being ultraviolet C (UVC), a wavelength of 290-320 nm being ultraviolet B (UVB), and a wavelength of 320-400 nm being ultraviolet A. (UVA). Among them, UVC passes through the ozone layer and disappears without reaching the ground surface. UVB penetrates to the epidermis of the skin, causing erythema, freckles, and edema. UVA is known to cause skin aging and skin irritation, such as penetrating the dermis of the skin to promote skin cancer, wrinkles, and melanin formation.

Long-wavelength ultraviolet light (UVA) promotes skin aging due to degeneration of proteins in the dermal layer, capillary expansion, destruction of nucleic acids (DNA), and the like. Meanwhile, the medium-wave ultraviolet (UV-B), which is mostly absorbed from the epidermal part of the skin, acts rapidly on the epidermis and causes burns, which is also called harmful ultraviolet. The long-wave UV rays come into contact with the skin all year round, but there is no self-awareness, and the skin grows old without you knowing it.

The public's interest in sun protection products has increased as the risks of sun exposure have increased, and products with various sun protection factors (SPF) and protection grade of UVA (PA) Is being released.

On the other hand, in relation to the formulation of cosmetics, liquid cosmetics have a problem of high discomfort and ease of use and ease of use that should be applied to the hand to apply to the excellent cosmetics or ease of use. In order to solve this problem, the liquid cosmetic composition of the low viscosity emulsion formulation is styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile-butadiene rubber (NBR), ABS, PE (polyethylene), PVA (polyvinyl alcohol) ), EVA (ethylene vinyl acetate), PU (polyurethane), etc. are impregnated into foamed water-insoluble sponges and developed as a cosmetic that is easy to use and carry. Among them, cosmetics impregnated with polyurethane sponges have been popularly used. have.

Accordingly, the present inventors attempted to impart a sunscreen function to a cosmetic composition impregnated with a water-insoluble sponge, but when impregnated with a water-insoluble sponge, a cosmetic composition having a sunscreen function is applied to the total content of the sunscreen contained in the cosmetic composition. As a result, it was found that there is a problem that the actual UV protection index / grade is lower than the expected UV protection index / grade.

In addition, the present inventors have found that the cause of such a problem is that the oil-soluble organic sunscreen that comes in direct contact with the water-insoluble sponge is adsorbed onto the water-insoluble sponge, and as a result, the sunscreen is not discharged at the same concentration as before the impregnation. The cause of this was identified.

Accordingly, the problem to be solved by the present invention is to select the composition of the sunscreen and / or the phase of the cosmetic composition so that the oil-soluble organic sunscreen is not adsorbed on the water-insoluble sponge, and thus the added sunscreen function is intact. Cosmetic composition comprising a water-insoluble sponge impregnated with a cosmetic composition which can be exerted and exhibits excellent sunscreen function (SPF 30 or more, PA ++ or more) and is free of whitening problems, and the cosmetic composition and / or It is to provide a method of manufacturing cosmetics.

More specifically, the problem to be solved by the present invention,

However, in the cosmetic composition comprising a sunscreen, the cosmetic composition is provided by impregnating a water-insoluble sponge, the oil-soluble organic sunscreen in the outermost phase of the cosmetic composition is substantially free or present in the outermost phase water insoluble An oil-soluble organic sunscreen that does not adsorb to a sponge is provided.

In addition, the cosmetic composition is to provide a cosmetic composition, characterized in that more than SPF 30 and PA + +.

In addition, the sunscreen is to provide a cosmetic composition, characterized in that the inorganic sunscreen.

In addition, the sunscreen is to provide a cosmetic composition, characterized in that any one or more of the following.

(a) a water soluble or water dispersible organic sunscreen;

(b) organic sunscreens that are converted from water insoluble to water soluble or water dispersible; or

(b) encapsulated organic sunscreen.

Alternatively, the formulation of the cosmetic composition is to provide a cosmetic composition, characterized in that the aqueous phase alone, oil-in-water emulsion or the outermost phase is a multiple emulsion.

In addition, the formulation of the cosmetic composition is an oil-in-water type or multi-emulsion, and in addition to the outermost phase of the cosmetic composition, it provides a cosmetic composition, characterized in that it contains an oil-soluble organic sunscreen.

In addition, the water-insoluble sponge is characterized in that the cosmetic composition, characterized in that formed of a hydrophobic monomer polymer containing styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile rubber (NR) or acrylonitrile-butadiene rubber (NBR) To provide.

In addition, the cosmetic composition is to provide a cosmetic composition, characterized in that the foundation.

Further, in the cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge,

In addition, the cosmetic composition contains a sunscreen, characterized in that it contains an oil-soluble organic sunscreen that is substantially free of the oil-soluble organic sunscreen in the outermost phase or is present in the outermost phase but not adsorbed to the water-insoluble sponge. In providing cosmetics.

The cosmetic composition is

At least one of the following organic sunscreens,

(a) a water soluble or water dispersible organic sunscreen;

(b) encapsulated organic sunscreen,

Oil-soluble organic sunscreen is to provide a cosmetic, characterized in that it comprises less than 10% of the total weight of the organic sunscreen contained in the cosmetic composition.

In addition, the cosmetic composition is to provide a cosmetic, characterized in that it further comprises an inorganic sunscreen.

In addition, the formulation of the cosmetic composition is to provide a cosmetic, characterized in that the aqueous phase alone, oil-in-water emulsion or the outermost phase is a multiple emulsion.

In addition, the water-insoluble sponge is characterized in that it is formed of a hydrophobic monomer polymer including styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile rubber (NR) or acrylonitrile-butadiene rubber (NBR) It is.

In addition, the cosmetic composition is to provide a cosmetic, characterized in that the foundation.

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

More specifically, the present invention is a cosmetic composition comprising a sunscreen, the cosmetic composition is provided by impregnating a water-insoluble sponge, the oil-soluble organic sunscreen is substantially free of the outermost phase or the outermost phase of the cosmetic composition A oil-soluble organic sunscreen present in, but not adsorbed on, a water-insoluble sponge is provided to provide a cosmetic composition, which exhibits an excellent sunscreen effect, preferably SPF 30 or more and PA ++ or more. In addition, it provides a method for producing the cosmetic composition.

In addition, the present invention is a cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge, the oil-soluble organic sunscreen in the outermost phase of the cosmetic composition is substantially free or present in the outermost phase water insoluble A cosmetic comprising the oil-soluble organic sunscreen that is not adsorbed on a sponge, preferably exhibiting an excellent sunscreen effect, preferably SPF 30 or more and PA ++ or more. In addition, it provides a method for producing the cosmetic.

Cosmetic Composition

The cosmetic composition according to the present invention includes a sunscreen.

In the specification according to the present invention, the term “ultraviolet blocker” may include any component that can block ultraviolet rays reaching the skin by a mechanism such as scattering, reflecting or absorbing ultraviolet rays, for example, an inorganic sunscreen agent, an organic ultraviolet ray. Blocking agents and mixtures thereof may be included.

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

The organic sunscreen has the advantage of having a UV absorbing effect and no clouding phenomenon, it can be divided into oil-soluble, water-soluble, oil-dispersible or water-dispersible organic sunscreen. For example, oil-soluble or oil-dispersible, 4-methylbenzylidene camphor, disodiumphenyldibenzamidazoletesulfonate, diethhexylbutamidopriazone, methylenebis-benzotriazolyltetramethylbutylphenol, ethylhexyldimethyl Pava, terephthalylidenedicamphor sulfonic acid and salts thereof, glyceryl pava, drometrizole, drometrizol trisiloxane, digaloyl trioleate, 3- (4-methylbenzylidene) -campa, methyl anthranilate , Bis-ethylhexyloxyphenol methoxyphenyl triazine, diethaminohydroxy benzoylhexyl benzoate, benzophenone-3, benzophenone-4, benzophenone-8, butylmethoxydibenzoylmethane, synoxate, ethylhexyltria Zone, octylmethoxycinnamate, octocrylene, octyldimethylmethyl, octyl salicylate, oxybenzone, synoxate, octyltriazone, ethylhexylmethoxycinnamate, ethylhexyl salicylate, paraamino Water solubility or water dispersibility of aromatic acid, homosalate, isoamyl-p-methoxycinnamate, bisethylhexyloxyphenolmethoxyphenyltriazine, and polysilicone-15 and the like is 2-phenylbenzimidazole-5-sulfonic acid. And the like, but are not limited thereto.

In addition, the inorganic sunscreen may have ultraviolet scattering and reflection effects, but clouding may occur. For example, titanium dioxide, zinc oxide and zirconium oxide, calcium cerium oxide and the like may be included, but is not limited thereto.

The inventors of the present invention, in the cosmetic composition according to the present invention, the reason why the added sunscreen function can not be fully exhibited because the oil-soluble organic sunscreen is adsorbed on the water-insoluble sponge, the inventors have found the cause Through the control of the usefulness of the organic sunscreen content or form in the outermost phase of, to solve the present problem.

Accordingly, sunscreen agents other than oil-soluble organic sunscreens, which are included in the cosmetic composition of the present invention, may be of type / dispersion (eg water-soluble or water-dispersible organic sunscreens, organic sunscreens or inorganic sunscreens that are converted from water-insoluble to water-soluble or water-dispersible). Etc.), content or position in the cosmetic composition may be appropriately selected by those skilled in the art, irrespective of adsorption to the water-insoluble sponge.

In addition, in the cosmetic composition according to the present invention, any sunscreen agent may be included other than the outermost image, for example, the type / dispersion / water-usefulness of the sunscreen agent (eg oil-soluble or oil-dispersible organic sunscreen, water-soluble or water-dispersible organic). Sunscreens, including organic sunscreens or inorganic sunscreens that have been converted from water-insoluble to water-soluble or water-dispersible, i.e. oil-soluble or oil-dispersible organic sunscreens), content, and the like. All of them can be used. For example, in the oil-in-water type (O ₁ / W / O ₂ ) or in the oil-in-water type (W / O ₁ / W), any sunscreen may be used in the oil phase (O ₁ ), including oil-soluble organic sunscreens. .

In the specification according to the present invention, the term “impregnation” means a permeating operation, and may be used with terms such as penetration, adhesion, absorption, and the like commonly used in the art, and more specifically, a water-insoluble sponge is a cosmetic composition. It may be in the form containing. However, the degree to which the impregnated material (cosmetic composition) is discharged, desorbed, separated or discharged (from a water-insoluble sponge) is usually controlled by the physical pressure (for example, 3 bar or less) applied to the skin to apply the cosmetic composition to the skin. do. Typically, the physical pressure exerted to apply the cosmetic composition to the skin can be applied using a hand or a tool (e.g. puff).

In the specification according to the present invention, the term "adsorption" means the sticking, binding, binding or concentrating of a substance, and more particularly, the oil-soluble organic sunscreen is sticking to, binding, binding, or concentrating on a water-insoluble sponge. This is why the adsorption state of the oil-soluble organic sunscreen onto the water-insoluble sponge is usually maintained by the physical pressure (for example, 3 bar or less) applied to the cosmetic composition to the skin. And the material (soluble organic sunscreen) adsorbed by the physical pressure is not discharged, desorbed, separated or discharged (from the water insoluble sponge.) The physical pressure applied to apply the cosmetic composition to the skin is typically It can be applied using a hand or a tool (eg puff).

In one embodiment, the oil-soluble organic sunscreen may be substantially free of the outermost image of the cosmetic composition according to the present invention.

In the specification according to the present invention, the term "outermost image" may mean a portion having the most direct contact surface with the water-insoluble sponge when the cosmetic composition is impregnated into the water-insoluble sponge. For example, if it consists of a single phase (i.e., sole or oil phase), the single phase is considered to be the outermost phase, for the oil-in-water emulsion the outermost phase is the oil phase, and for the oil-in-water emulsion, the outermost phase is the water phase, and the multiple emulsions. In the case of describing '(X) / (X) n / Y' (the 'X, Y' may be a water phase or an oil phase, and may be abbreviated as 'W' if it is an aqueous phase. Yes, and to oil phase is referred to as 'O'. the 'n' is from 1 more), and the 'Y', that at the most foreign, in-water type _{_{(O 1 / W / O 2}} ) in oil for example the outermost trauma Is the oil phase (O ₂ ).

In the specification according to the invention, the term "substantially free (or not)" means that the content present in the outermost phase of the cosmetic composition is less than 10% by weight, less than 9% by weight, 8% by weight relative to the total weight contained in the cosmetic composition. Less than%, 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%, 0.0005% It may mean less than%, or most preferably less than 0.00001% by weight. For example, the content of the oil-soluble organic sunscreen contained in the outermost phase of the cosmetic composition according to the present invention is less than 10% by weight, less than 9% by weight, less than 8% by weight, and 7% by weight of the total amount of the organic sunscreen contained in the cosmetic composition. Less than 6%, 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%, less than 0.0005%, or most It may mean that less than 0.00001% by weight. As an example, in the cosmetic composition according to the present invention, the outermost image may be included in the term even when only the inorganic sunscreen is contained as the sunscreen and no organic sunscreen is included. For example, in the cosmetic composition according to the present invention, the outermost image may be included in the term even when only the water-soluble, water-dispersible organic sunscreen agent is contained as the sunscreen and no oil-soluble organic sunscreen agent is included at all.

In another embodiment, the outermost image of the cosmetic composition according to the present invention may include an oil-soluble organic sunscreen that does not adsorb to a water-insoluble sponge.

In the specification according to the invention, the term "non-adsorbed" means "weight of the (soluble organic) sunscreen adsorbed on the water-insoluble sponge" / "weight of the (soluble organic) sunscreen contained in the outermost phase of the cosmetic composition". less than 10 weight percent, less than 9 weight percent, less than 8 weight percent, less than 7 weight percent, less than 6 weight percent, less than 5 weight percent, less than 4 weight percent, less than 3 weight percent, Less than 2% by weight, less than 1% by weight, 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, wherein the (soluble organic) sunscreen is included in the cosmetic composition Means one or more (soluble organic) sunscreens.

"Oil-soluble organic sunscreens present in the outermost phase but not adsorbed on a water-insoluble sponge" can be realized by phase control of the cosmetic composition and / or selecting the composition of the oil-soluble organic sunscreen.

More specifically, in terms of phase selection of the cosmetic composition, the effect of the present invention can be achieved by configuring the outermost image of the cosmetic composition with an aqueous phase. As described above, the formulation of the cosmetic composition in which the outermost phase is an aqueous phase includes, for example, Y being an aqueous phase in a single aqueous phase (aqueous phase alone), oil-in-water type, or multiple emulsions ('(X) / (X) n / Y'). Cases (ie, multiple emulsions with the outermost prize being an aqueous phase). When the outermost phase of the cosmetic composition is an aqueous phase, the oil-soluble organic sunscreen present in the outermost phase, which is an aqueous phase, is preferably converted into water-soluble or water-dispersible, or water-soluble or water-dispersible, and if it is oil-soluble or oil-dispersible, encapsulation and the like. It is preferable that it is modified to be dispersible in an aqueous phase by the method.

In addition, in view of the composition selection of the oil-soluble organic sunscreen contained in the cosmetic composition, an oil-soluble organic sunscreen modified to not be adsorbed onto the water-insoluble sponge can be used.

The term "modification" encompasses both chemical or physical modifications of organic sunscreens, but includes, for example, methods of preventing direct contact between oil-soluble organic sunscreens and water-insoluble sponges present in the outermost phase (eg encapsulation of oil-soluble organic sunscreens), Or a method in which the oil-soluble organic sunscreen and the water-insoluble sponge are in contact with each other, but the adsorption reaction does not occur (eg, modification of the compound structure, transformation into water-soluble and water dispersibility), and the like.

According to one embodiment of the invention, the cosmetic composition is

Contains one or more of the following organic sunscreens

(a) a water soluble or water dispersible organic sunscreen;

(c) encapsulated organic sunscreen,

The oil-soluble organic sunscreen is 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, less than 7% by weight of the total weight of the organic sunscreen in the cosmetic composition. , 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%, less than 0.0005%, or most preferably It may comprise less than 0.00001% by weight.

In addition, it may optionally further comprise an inorganic sunscreen.

The cosmetic composition according to the present invention has an excellent UV protection effect, preferably 30 or more of the Sun Protection Factor (SPF) and / or 4 or more of the Protection Factor of UVA (PFA), UV A blocking Protection grade of UVA (PF) ++ or greater. In addition, there is little clouding phenomenon.

The "Sun Protection Factor (SPF)" is an index indicating the blocking effect of UVB-blocking products, and the minimum amount of erythema obtained by applying UV-blocking products to the minimum amount of erythema obtained without applying UV-blocking products. It means divided value. The “Minumum Erythema Dose (MED)” refers to the minimum amount of ultraviolet radiation that can show erythema in all areas of the irradiation area within 16 to 24 hours after irradiating UVB to human skin. As the UV blocking index measurement method, subject selection, test site, minimum erythema amount measurement of product-free coating site, minimum erythema amount measurement of product application site, light source selection, standard sample, product application amount, product application area, irradiation area section, light quantity The increase, the calculation of the sun protection index, and the indication of the sun protection index are described in Korean Food and Drug Administration Notice No. 2013-28, 2013.4.5. It shall be in accordance with the provisions of Chapter 2, Method of Measuring UV Protection Index (SPF) of Annex 3 of the Regulation on the Examination of Functional Cosmetics.

The “Protection Factor of UVA (PFA)” is an index indicating the blocking effect of UVA-blocking products, and the minimum sustained instantaneous amount obtained by applying UV-blocking products is obtained without applying UV-blocking products. The minimum sustained instantaneous division divided by the amount of instantaneous. The “Minimal Persistent Pigment Darkening Dose (MPPD)” is a minimum ultraviolet irradiation dose in which faint degradation is recognized in all areas of the irradiation area within 2 to 4 hours after irradiating UVA to human skin. Say. In addition, "Protection grade of UVA (PF)" means the degree of UVA blocking effect. If PFA 2 or more, PA is indicated, and PFA 2 or more and less than 4 can be written as PA +, PFA 4 or more and less than 8 can be written as PA ++, and PFA 8 or more can be written as PA +++. On the assumption that). Selection of subject, test site, measurement of minimum sustained instant blackening before test, measurement of minimum sustained instant blackening of product without coating and application site, selection of light source, standard sample, product coating amount, product application area And Korea's Food and Drug Administration Notice No. 2013-28, 2013.4.5. It shall be in accordance with the provisions of Chapter 4 of the Measures of UV-A Blocking Index of Annex 3 of the Regulation on the Examination of Functional Cosmetics.

While the cosmetic composition according to the present invention exhibits an excellent UV blocking effect, the cloudiness is hardly exhibited. For example, the inorganic UV blocking agent included in the cosmetic composition according to the present invention is 15% by weight or less relative to the total weight of the cosmetic composition, 14 Or less, 13 or less, 12 or less, 11 or less, 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, 5 or less, 4 or less It can be used in weight% or less, 3 weight% or less, 2 weight% or less, or 1 weight% or less. If inorganic sunscreens are used in excess of 15% by weight relative to the total weight of the cosmetic composition, turbidity may be a problem.

The cosmetic composition according to the present invention can be prepared by those skilled in the art as needed, such as pigments, antioxidants, activators, humectants, drugs, metal ion sequestrants, polyhydric alcohols, preservatives, and fragrances, as long as they do not interfere with the effect of inhibiting adsorption on the water-insoluble sponge. It can mix | blend easily.

Preparation of the cosmetic composition according to the present invention may be in accordance with conventional methods known in the art, in consideration of the type, content and formulation of the ingredients.

In addition, the impregnation of the cosmetic composition according to the present invention to the water-insoluble sponge is a conventional method known in the art in consideration of the kind, content, formulation of the cosmetic composition, or the kind of water-insoluble sponge, etc. contained in the cosmetic composition. Can follow.

Cosmetic compositions (or cosmetics) according to the present invention is, for example, makeup primer, makeup base, foundation, skin cover, lipstick, lip gloss, face powder, lip liner pencil, eyebrow pencil, eye shadow, cheek color, compact powder, twin Cakes, facts, powder pacts, eyebrows, eyeshadows, concealers, blushes, powder foundations or airlesss, and the like.

[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 the cosmetic composition, for example, styrene-butadiene rubber (BR), butadiene rubber (BR), acrylonitrile rubber (NR) , NBR (acrylonitrile-butadiene rubber), ABS (acrylonitrile-butadiene styrene), PE (polyethylene), PVA (polyvinyl alcohol), EVA (ethylene vinyl acetate), PU (polyurethane) and the like may be foamed processing.

A prominent effect of inhibiting the adsorption of the cosmetic composition onto the water-insoluble sponge according to the present invention may be a water-insoluble sponge obtained by foaming a hydrophobic monomer polymer, for example, styrene-butadiene rubber (BR), butadiene rubber (BR), and NBR. (acrylonitrile-butadiene rubber), PU (polyurethane) and the like can be included.

The process of impregnating the cosmetic composition according to the present invention into a water-insoluble sponge may be in accordance with conventional methods known in the art.

[cosmetics items]

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

The description of the water-insoluble sponge and the cosmetic composition impregnated therein is replaced by the above description in order to avoid duplication.

In particular, according to one embodiment, the cosmetic composition impregnated in the water-insoluble sponge

Contains one or more of the following organic sunscreens

(a) a water soluble or water dispersible organic sunscreen;

(c) encapsulated organic sunscreen,

In addition, it may optionally further comprise an inorganic sunscreen.

Cosmetics according to the present invention may include additional components (e.g. puff) as appropriate by the person skilled in the art in addition to the water-insoluble sponge and the cosmetic composition impregnated thereto.

The cosmetic composition having a sunscreen function according to the present invention is prevented from adsorbing the sunscreen to the water-insoluble sponge even when impregnated in the water-insoluble sponge, the anti-sunscreen effect expected from the sunscreen contained in the cosmetic composition (sunscreen index It can provide cosmetics that can make full use of the grade.

1 illustrates a cosmetic product in which the foundation is impregnated with a water-insoluble sponge.

Hereinafter, examples and the like will be described in detail to help understand the present invention. However, embodiments according to the present invention can be modified in many different forms, the scope of the invention should not be construed as limited to the following examples. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

EXAMPLES Water-in-oil foundation containing organic sunscreen

Water-in-oil foundation was prepared with the ingredients and contents listed in Table 1 below.

Comparative Example 1 includes an oil-soluble organic sunscreen (Ethylhexylmethoxycinnamate (EHMC), isoamyl P-methoxycinnamate (IAMC), ethylhexylsalicylate (EHS)) and an inorganic sunscreen (titanium dioxide) A water-in-oil foundation was prepared, whereas in Examples 1 and 2, a water-in-oil foundation including water-soluble organic sunscreen (phenylbenzimidazolesulfonic acid (PBSA)) and an inorganic sunscreen (titanium dioxide) was prepared. Prepared.

Water-in-oil foundations were prepared as follows:

The oil phase component and the thickener were added to the oil bath, heated at 80 ° C. to make it uniform, and then the pigment was added and dispersed. A water component was added to a water tank, heated to 80 ° C. to completely dissolve the raw material, and then added to an oil tank in which pigments were dispersed to emulsify with a homomixer to prepare a low viscosity sunscreen emulsion. After filling the 40 ml stability container for one day or more in a 25 ° chamber, the Brookfield LVII viscometer was operated at 30 rpm for 1 minute using spindle 4, and the viscosity was measured at 25 °. Came out.

Experimental Example Sunscreen Adsorption Test of Water-Insoluble Sponge

The foundation of Comparative Example 1-2 and Example 1-2 were impregnated with SBR, NBR, and PU by 15 g, respectively, and then stored in a 25 ° chamber for at least one day. The foundation not impregnated on the sponge surface was removed and then proceeded.

First, each of the sponges impregnated with the foundation of Comparative Example 1-2 and Example 1-2 was pressed by hand to obtain a foundation.

According to KFDA Notification No. 2013-28, Functional Cosmetic Standard and Test Method (KFCC), the foundation before impregnating the sponge and the foundation obtained from the sponge are dissolved in a solvent, and then the ultraviolet absorption photometer according to the liquid chromatograph method. Peak Areas AT and Ethyl Hexylmethoxycinnamate (EHMC), Phenylbenzimidazolesulfonic acid (PBSA), Ethylhexylsalicylate (EHS), and Isoamyl P-methoxycinnamate (IAMC) The peak area As of the standard product was obtained and analyzed for the changed values before and after impregnation.

Amount of Ethylhexylmethoxycinnamate (mg) = AT / As X Amount of Ethylhexylmethoxycinnamate standard (mg)

Amount of Phenylbenzimidazolesulphonic acid (mg) = AT / As X Amount of Phenylbenzimidazolesulphonic acid standard (mg)

Amount of Ethyl Hexylsalicylate (mg) = AT / As X Amount of Ethyl Hexylsalicylate Standard (mg)

Amount of isoamyl P-methoxycinnamate (mg) = AT / As X Amount of isoamyl P-methoxycinnamate standard (mg)

The results are shown in Table 2 (Comparative Example 1) and Table 3 (Example 1).

In addition, evenly applied to the artificial skin (vitroskin) using a sponge impregnated with the foundation of Comparative Example 1-2 and Example 1-2, and left for 10 minutes, SPF, PFA using a UV-block index meter (SPF-290S) The numerical value was measured.

The results are shown in Table 4 (in-vitro SPF, in-vitro PFA values for Comparative Example 1-2 and Example 1-2).

As a result of the sunscreen adsorption test of the water-insoluble sponge, when an oil-soluble organic sunscreen such as ethylhexylmethoxycinnamate, isoamyl P-methoxycinnamate, and ethylhexyl salicylate is in the oil phase (Comparative Example 1-2), Adsorption on the water-insoluble sponge greatly reduced the amount of ultraviolet rays, so that the UV protection index fell significantly. Also, according to the UV protection functional cosmetics method, the main ingredient content was less than 90%. On the contrary, when water-soluble or water-dispersible sunscreens such as phenylbenzimidazole sulfonic acid were used (Example 1-2), it was found that they were properly detected without being adsorbed onto the water-insoluble sponge. In addition, it can be seen that the excellent UV protection effect of SPF 30 or more, PFA 4 or more.

In case of water-insoluble sponges, sunscreen adsorption occurs largely in SBR or NBR, and in the case of PU, sunscreen adsorption occurs but relatively less than in SBR or NBR. Could.

Claims

A cosmetic composition comprising a sunscreen, wherein the cosmetic composition is provided by impregnating a water-insoluble sponge, wherein the cosmetic composition is substantially free of an oil-soluble organic sunscreen in the outermost phase or is present in the outermost phase but in a water-insoluble sponge. A cosmetic composition comprising an oil-soluble organic sunscreen that does not adsorb.
The method of claim 1,

The cosmetic composition is characterized in that the SPF 30 or more and PA + +, cosmetic composition.
The cosmetic composition according to claim 1, wherein the sunscreen is an inorganic sunscreen.
According to claim 1, The sunscreen is a cosmetic composition, characterized in that any one or more of the following:

(a) a water soluble or water dispersible organic sunscreen;

(b) organic sunscreens that are converted from water insoluble to water soluble or water dispersible; or

(c) encapsulated organic sunscreen.
The cosmetic composition according to claim 1, wherein the formulation 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 cosmetic composition according to claim 1, wherein the formulation of the cosmetic composition is oil-in-water or multi-emulsion, and contains an oil-soluble organic sunscreen agent in addition to the outermost phase of the cosmetic composition.
The method of claim 1, wherein the water-insoluble sponge is formed of a hydrophobic monomer polymer comprising styrene-butadiene rubber (SBR), butadiene rubber (BR), acrylonitrile rubber (NR) or acrylonitrile-butadiene rubber (NBR) , Cosmetic composition.
The cosmetic composition according to claim 1, wherein the cosmetic composition is a foundation.
In the cosmetic comprising a water-insoluble sponge and a cosmetic composition impregnated in the water-insoluble sponge,

Wherein said cosmetic composition contains a sunscreen and contains an oil-soluble organic sunscreen that is substantially free of the oil-soluble organic sunscreen in the outermost phase or is present in the outermost phase but not adsorbed to a water-insoluble sponge.