WO2017116146A1 - Sponge having antibacterial activity - Google Patents

Abstract

Disclosed in the present specification is a cosmetic composition applicator comprising an antibacterial material so as to have an antibacterial activity against bacteria and fungi and have stable durability and foaming properties. The present invention can provide a cosmetic composition applicator capable of being safely embedded in an airtight container, and enabling users in a region of high temperature and humidity to reliably use the applicator.

Description

Sponge with Antibacterial Activity

Disclosed herein is a sponge having antimicrobial activity.

BACKGROUND OF THE INVENTION As the formulation of cosmetic compositions is diversified, the use of puffs or sponges as applicators (also called application means or applicators) for the application of cosmetic compositions is increasing.

However, the applicator may be exposed to the outside during use and be in direct contact with the skin and contaminated by the bacteria. In the case of an applicator for a liquid cosmetic composition, while providing breathability for drying the applicator during storage, it is provided to be stored in a closed container for stable storage of the cosmetic composition, and there is a problem in that bacteria are easily propagated. In addition, there has been a problem of deformation, melting, or tearing caused by the use of the applicator.

[Preceding technical literature]

[Patent Documents]

Korean Laid-Open Patent Publication No. 2009-0100643 (2009. 09. 24. Disclosure)

In one aspect, the present invention is to provide a cosmetic composition applicator excellent in antimicrobial activity.

In one aspect, the present invention is to provide a cosmetic composition applicator with improved durability.

One aspect of the present invention to solve the object as described above provides a cosmetic composition applicator comprising a sponge containing an antimicrobial substance having an optimal combination with a sponge.

In addition, another aspect of the present invention to solve the object as described above provides a cosmetic composition applicator comprising a sponge having an excellent antimicrobial power and durability at the same time, including an antibacterial material having an optimal combination with the sponge.

The cosmetic composition applicator according to the embodiment of the present invention has an antimicrobial activity against bacteria and mold by including an antimicrobial substance, and has stable durability and foaming properties as a cosmetic composition applicator. Therefore, the present invention can be safely embedded in a sealed container, it is possible to provide a cosmetic composition applicator that can be used safely by users in various use environments.

Hereinafter, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention.

In the present specification, the "cosmetic composition applicator" is also referred to as a cosmetic composition application means or applicator, puff or cosmetic sponge. "Cosmetic composition applicator" is the broadest means for delivering any substance or ingredient to the skin, including all means of application such as puffs, tips, brushes, and the like.

As used herein, the term "sponge" is a material capable of supporting any material or component that may be exemplified by the composition, and is made of rubber, fibers, or resins as sponges, and may temporarily absorb, support, and discharge the cosmetic composition. It means to be. For example, the sponge means that a foam is formed by foaming polyurethane, rubber, vinyl, etc. in a dry or wet foaming manner and then solidifying the foam.

As used herein, the term "durability" refers to the extent to which the sponge remains intact without melting, tearing or expanding when it is left under constant temperature and humidity, and / or taking the cosmetic composition from the carrier or using it on the skin. The degree to which the sponge is subjected to repeated contact or force when delivered.

As used herein, "antibacterial activity" and "antibacterial function" means a property resistant to contamination by bacteria and fungi, and includes both the action of killing microorganisms or inhibiting the growth and development of microorganisms. Since the sponge is not a cosmetic, there is no restriction on the antimicrobial substance. However, since the sponge is used together with the cosmetic composition or the cosmetic, the antimicrobial substance exhibiting the antimicrobial power while satisfying the safety standard of the cosmetic is extremely limited.

Therefore, one embodiment of the present invention is isopropyl methyl phenol (Isopropyl methyl phenol), phenoxyethanol (Phenoxyethanol), chloroxylenol (Chloroxylenol), ethylhexylglycerin (Ethylhexylglycerin), glyceryl caprylate (Glyceryl caprylate), Cosmetic application comprising a sponge comprising at least one antimicrobial material selected from the group consisting of thymol, calcium phosphate-silver compound complex and silver ion-silicate complex Provide a phrase.

In one embodiment, the calcium phosphate-silver compound complex refers to a silver compound coating of calcium phosphate, obtained by supporting a silver compound on calcium phosphate. The calcium phosphate-silver compound may include, for example, a tricalcium phosphate-silver compound complex, and more specifically, may be APACIDER-C ^™ (manufactured by Sangi CO., LTD.). .

In one embodiment, the silver ion-silicate complex refers to a glass, that is, a complex in which silver ions in the structure of the silicate are physically contained or bound, and the silver ions are released from the complex to exhibit an antimicrobial effect. Specifically, the silver ion-silicate complex may be ION PURE ^™ (manufactured by ISHIZUKA GLASS CO., LTD.).

Antimicrobial materials used for antimicrobial activity must be safe for the human body and harmless to the environment. In addition, if the physical properties of the sponge due to the addition of the antimicrobial material is not enough to serve as a cosmetic applicator.

In view of the above, the antimicrobial substances according to an embodiment of the present invention satisfy the stability criteria of cosmetics. Specifically, 1) It should be safe and does not cause environmental pollution. 2) It should be an antibacterial material against bacteria and fungi. 3) It should be a material that keeps the sponge's physical properties stable. All satisfies the fact that the material is less eluted. The antimicrobial substances can maintain hydrophilicity in the foaming process of the sponge while showing hydrophilicity to have antimicrobial activity against bacteria and fungi.

If the antimicrobial material has a strong polarity, the tensile strength and elongation of the sponge may be deteriorated. If the antimicrobial material is eluted, the antimicrobial activity may decrease. However, the antimicrobial materials according to the embodiment have a hydrophilicity and low dissolving power against water and enhance durability without inhibiting the properties of the sponge, so that the antimicrobial activity can be maintained for a long time and the sponge can be prevented from melting or tearing. .

In the present specification, “sponge” is not particularly limited, but may be a natural sponge or a synthetic sponge, and the natural sponge may be, for example, a sponge sponge, a natural rubber (NR) sponge, or the like, and the synthetic sponge may be Polyurethane, Latex, Acrylonitrile-butadiene rubber (NBR), Butadiene rubber (BR), Styrene-butadiene rubber (SBR), Chloroprene rubber (CR) Isoprene-isobutylene rubber (IIR), isoprene rubber (IR), vulcanized ethylene-propylene rubber (Ethylene-propylene: EPR), polysulfide rubber, silicone rubber, fluorine Fluoro rubber, Urethane rubber, Acrylic rubber, EPDM (Ethylene propylene diene monomer) rubber, Polyvinyl alcohol (PVA) and ethylene vinyl acetate (EVA), Reel rubber (Nitrile Rubber) can be at least one member selected from the group consisting of and the like.

In one embodiment, the polyurethane may include one or more selected from the group consisting of ester-based polyurethanes, ether-based polyurethanes, and carbonate-based polyurethanes.

As an example, the sponge may include 0.5 to 6.0 mass% of the antimicrobial substance with respect to the total mass of the sponge. Specifically, the sponge is 0.5% by mass, 0.8% by mass, 1.0% by mass, 2.0% by mass, 3.0% by mass, 4.0% by mass, 5.0% by mass or more of the antimicrobial substance, 6.0 mass%. The sponge may include the antimicrobial material in an amount of 6.0 mass% or less, 5.0 mass% or less, 4.0 mass% or less, 3.0 mass% or less, 2.0 mass% or less, 1.0 mass% or less with respect to the total sponge mass. . If the antimicrobial material is included in less than 0.5% by mass, the antimicrobial activity is insufficient, and when included in more than 6.0% by mass may reduce the physical properties of the sponge.

In one embodiment the sponge may be prepared in a dry or wet manner.

According to an embodiment of the present invention, the sponge having the antimicrobial power may be prepared by adding an antimicrobial material in the sponge manufacturing step, and is not affected by the antimicrobial power in manufacturing process conditions, humidity, temperature changes, etc., and a separate post-treatment process and drying No processes are required.

According to one embodiment, the sponge having an antimicrobial activity may be prepared by a method including adding an antimicrobial substance to a formulation for preparing a sponge in a sponge manufacturing step. Alternatively, as an embodiment, it may be prepared by a method including preparing a sponge and then adding an antimicrobial substance to the sponge.

As an example, a case where a sponge containing an antimicrobial substance included in the applicator of the cosmetic composition of the present invention is made of polyurethane is as follows.

A step of kneading a blend containing a water-curable polyurethane, a solvent, a water-soluble inorganic salt powder, and an antibacterial substance as a main component, and containing other components added as necessary; Degassing the kneaded product to obtain a degassed kneaded product; Molding the defoaming kneaded material to obtain a molded product; Putting the molded product in water or in an aqueous solution to coagulate to form a coagulated product; Removing the inorganic salt by dissolving it in water in the coagulated product; And it may be prepared by a method including a step of drying after the elution removal.

Polyurethane according to one embodiment is obtained by reacting a polyisocyanate compound with a polyol component consisting of a high molecular weight polyol and a chain extender. The high molecular weight polyols include polyether polyols such as polypropylene glycol, polytetramethylene glycol and polyether polyols, polyester polyols such as adipate polyols and polycaprolactone polyols, polycarbonate polyols, and polyolefin polyols. Preferable molecular weight is 500-10000. In addition, chain extenders include ethylene glycol, 1,4-butanediol, 1,6-hexanediol 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,3-propanediol and the like. Examples of the polyisocyanate compound include aromatic isocyanates such as methylene diphenyl diisocyanate, tolylene diisocyanate, xylene diisocyanate, naphthylene 1,5-diisocyanate and tetramethylene xylene diisocyanate, isophorone diisocyanate and dicyclohexyl methane diisocyanate. Alicyclic isocyanates, such as isocyanate, and hexamethylene diisocyanate, aliphatic isocyanate, such as dimer acid diisocyanate, norbornene diisocyanate, etc. are mentioned.

In one embodiment, the water-coagulated polyurethane may be polyurethane dissolved in a solvent, and refers to a polyurethane in which the solvent is substituted with water and precipitated and solidified when added to an aqueous solution in which water, an inorganic salt, and a solvent are dissolved. The water-coagulated polyurethane used generally has a solid content of 30 ± 5% by mass, and a solution having a viscosity of 30 to 300 Pa.s (25 ° C., measured by a BH type viscometer No. 6 rotor) can be used.

In one embodiment, the solvent refers to a solvent for polyurethane, and an organic solvent such as dimethylformamide, dimethyl sulfoxide, dioxane, tetrahydrofuran, methyl pyrrolidone, N-methylpyrrolidone, or the like. Mixtures;

For example, the amount of the solvent may be added in a range of 2 to 50 parts by mass based on 100 parts by mass of a polyurethane solution (water-solidified polyurethane) having a solid content of 30% by mass.

As one embodiment, as the water-soluble inorganic salt powder, one or two or more kinds of chlorides such as sodium and potassium, sulfates and the like can be used. The water-soluble inorganic salt powder can be selected to have a suitable particle size to obtain a sponge having a desired average cell size.

As an example, other components added as needed include surfactants of less than HLB 8.6.

In one embodiment, the kneading, defoaming, degassing kneading of the blend, the step of producing a solidified solidified product, the step of dissolving and removing the inorganic salt in water from the coagulated product and drying process, for example, Japanese patent The method, conditions, etc. which are described in Unexamined-Japanese-Patent No. 2015-116370 can be performed.

Or as an example, kneading the blend, and obtaining the dough in a formulation that does not contain an antimicrobial material, and after producing a sponge in the same manner as the above method, and then adding the antimicrobial material to the obtained sponge It is also possible to manufacture a sponge included in the applicator according to an embodiment of the present invention by the method.

The cosmetic composition applicator according to an embodiment of the present invention may be a film type in which one or more cells of the opposite side and the side of the side in contact with the skin are closed. The cosmetic composition applied to or applied to the cosmetic composition applicator can reduce the outflow through the opposite side (hand touching side) or the side of the side in contact with the skin, and it is convenient because it does not touch the hand when used.

In one embodiment, the sponge may have an open cell structure, a closed cell structure, or a reticulated structure. The production of sponges or foams is generally subjected to foaming and aging, depending on the degree of foaming, a closed cell structure or an open cell structure is obtained. In this case, a structure in which some or all of the membranes (walls) of the closed cells in the form of balloons after foaming are removed through a separate reticulation process is called an “open cell structure,” and all or some of the cells included in the sponge The complete open cell structure, which breaks the membrane and leaves only a frame, is called a "delusional structure". The open cell structure as described above facilitates absorption and discharge of liquid phases as well as air permeation.

In one embodiment, the average cell size of the sponge may be 20 to 1500 μm. In the present specification, the “average cell size” means an average diameter of a cell included in a sponge, and may be an average value of diameters of cells included in one sponge or an average value of diameters of one cell. Specifically, the average cell size is 20 μm or more, 50 μm or more, 100 μm or more, 150 μm or more, 200 μm or more, 300 μm or more, 400 μm or more, 500 μm or more, 600 μm or more, 700 μm or more, 800 μm At least 900 μm, at least 1000 μm, at least 1100 μm, at least 1200 μm, at least 1300 μm, at least 1400 μm, or at least 1500 μm. The average cell size is 1500 μm or less, 1400 μm or less, 1300 μm or less, 1200 μm or less, 1100 μm or less, 1000 μm or less, 900 μm or less, 800 μm or less, 700 μm or less, 600 μm or less, 500 μm or less. , 400 μm or less, 300 μm or less, 200 μm or less, 100 μm or less, 50 μm or less, or 20 μm. If the average cell size is less than 20㎛ the absorption and discharge of the cosmetic composition is not easy because the delivery power is not suitable because it is not suitable as a cosmetic composition applicator, if it is more than 1500㎛ the skin is too rough and the absorption and discharge of the cosmetic composition is too much It may be difficult to express smooth skin without uniform application and without clumping. The cell size can be measured at 5x / 0.15 magnification using an optical microscope (Nikon ECLIPSE LV100POL).

In one embodiment, the "delivery power" means that any substance or ingredient taken by the cosmetic composition applicator is effectively delivered to the application object. It can be evaluated by the rate of delivery (delivery capacity) delivered to the skin of any of the above substances or ingredients, and can be calculated by the following method.

[Equation 1]

Delivery rate (%) = (the amount of the cosmetic composition taken by the applicator discharged to the application object (discharge amount) / the amount of the cosmetic composition absorbed by the applicator device (absorption amount) X 100

The discharge amount means the amount of the cosmetic composition taken by the applicator to be discharged to the delivery target such as skin, and the absorption amount means that the cosmetic composition is temporarily taken into the applicator. The delivery rate is most appropriate when the cosmetic composition is absorbed and discharged in an appropriate amount of not much or small amount on the skin, the cosmetic composition delivery rate of the cosmetic composition applicator of the present invention may be 30% to 100%. More specifically, the delivery rate of the cosmetic composition applicator according to an embodiment of the present invention is 30% or more, 35% or more, 40% or more, 50% or more, 60% or more, 70% or more, 80% or more, 90% or more It may be 100%, 100% or less, 90% or less, 80% or less, 70% or less, 60% or less, 50% or less, 40% or less, or 30%.

In addition, as an embodiment, the sponge includes pores, and the pores may include pores of 5 to 500 pores per inch (ppi). Specifically, the pore number may be 5 or more, 10 or more, 50 or more, 100 or more, 200 or more, 300 or more, 400 or more, or 500 ppi, 500 or less, 400 or less, 300 or less, 200 or less, 100 or less, 50 Or less than 10 or 5 ppi. In the present specification, "pore number" refers to the number of pores per inch of the sponge, and the pore number herein refers to the number of pores on a horizontal and vertical 1 inch line using WIQA-14 (ASTM standard). It can be a number measured and averaged.

In one embodiment, the density of the sponge may be 0.05 to 0.2 g / cm ³ (3.12 to 12.48 lb / ft ³ ). Specifically, the sponge may have a density of 0.1 to 0.18 g / cm ³ . The sponge has a density of 0.05 g / cm ³ or more, 0.06 g / cm ³ or more, 0.07 g / cm ³ or more, 0.08 g / cm ³ or more, 0.09 g / cm ³ or more, 0.1 g / cm ³ or more, 0.12 g / cm ³ or more, 0.14 g / cm ³ or more, 0.16 g / cm ³ or more, 0.18 g / cm ³ or more, or 0.2 g / cm ³ , 0.2 g / cm ³ or less, 0.18 g / cm ³ or less, 0.16 g / cm ³ or less, 0.14 g / cm ³ or less, 0.12 g / cm ³ or less, 0.1 g / cm ³ or less, 0.09 g / cm ³ or less, 0.08 g / cm ³ or less, 0.07 g / cm ³ or less, 0.06 g / up to cm ³ or 0.05 g / cm ³ . When the density of the sponge is less than 0.05 g / cm ³ may be less durable, if the density exceeds 0.2 g / cm ³ may not be well discharged and absorbed in the cosmetic composition and the soft feeling may be reduced. In the present specification, the density may be a value measured by the JIS K 7222 method.

In addition, as an embodiment, the hardness of the applicator or sponge may be 30 to 80 based on an ASKER hardness tester Type F. In the present specification, "Asker F hardness" is a hardness when measured with an ASKER (manufacturer) DUROMETER HARDNESS measuring device (Type F) is a cosmetic composition is absorbed in the cosmetic composition applicator It means hardness before. At this time, the hardness of the applicator or sponge is based on the diameter 54Φ, height 6T, may be a single layer or a multi-layer structure. Specifically, the hardness of the applicator or sponge is 30 or more, 35 or more, 40 or more, 45 or more, 50 or more, 55 or more, 60 or more, 65 or more, 70 or more, 75 or more or 80 on the basis of the Asker hardness tester F type. Can be. In addition, the hardness of the applicator or sponge is 80 or less, 75 or less, 70 or less, 65 or less, 60 or less, 55 or less, 50 or less, 45 or less, 40 or less, 35 or less or 30 on the basis of the Asker hardness tester F type. Can be. If the hardness of the applicator or sponge is less than 30 on the basis of the F-Asker hardness tester, adhesion may be reduced, and if it is more than 80, the soft feeling of wrapping the skin may be reduced.

In one embodiment, the thickness of the cosmetic composition applicator or sponge may be 0.05mm to 8mm. If the thickness is less than 0.05mm is not easy to absorb and discharge the cosmetic composition has a limit in the expression of the skin, if more than 8mm it may be difficult to additional lamination or heat sealing processing on the sponge included in the cosmetic composition applicator. Specifically, the thickness of the cosmetic composition applicator is 8 mm or less, 7 mm or less, 6 mm or less, 5 mm or less, 4 mm or less, 3 mm or less, 2 mm or less, 1 mm or less, 0.5 mm or less or 0.1 mm or less And may have a thickness of at least 0.05 mm, at least 0.1 mm, at least 0.5 mm, at least 1 mm, at least 2 mm, at least 3 mm, at least 4 mm, at least 5 mm, at least 6 mm, at least 7 mm, or at least 8 mm. .

In addition, according to an embodiment of the present invention, the cosmetic composition applicator may have a structure including a plurality of layers. For example, the structure may be a structure composed of a plurality of sponge layers having different pore sizes, or may be a structure composed of a plurality of layers of sponges of different materials. As another example, the structure may be a structure including a layer of an open cell structure and a layer of a closed cell structure.

As another embodiment, the cosmetic composition applicator may further include a polyurethane microporous film layer (sheet) on at least one surface of the sponge. Specifically, the cosmetic composition applicator may form a puff structure by laminating a polyurethane microporous film layer (sheet) on a dry urethane sponge. The dry urethane sponge forms a cushion layer, and the polyurethane microporous film layer (sheet) may be laminated on portions other than the surface touching the skin. The puff structure may be integrated by laminating with a binder and then applying pressure with a hot press or the like.

In one embodiment of the invention, the cosmetic composition applicator may have one or more of a curved surface and a flat surface. In this case, the cosmetic composition applicator having a curved surface and a plane at the same time means that the applicator has a spherical part and a plate part at the same time. Applicator having at least one of the curved surface and the plane is made of hemispherical, semi-elliptic, bell, disk, cylinder, star column, triangular column, square column, hexahedron, tetrahedron and pyramid The shape may be any one selected from the group, but is not limited thereto.

In addition, as an embodiment, the cosmetic composition applicator may further include a string, a ring or a handle fixed to the applicator, and specifically, the string, the ring or the handle is a polyurethane microporous film layer laminated on one surface of the sponge It may be attached to the (sheet).

One embodiment of the present invention is the cosmetic composition applicator described above; And it can provide a cosmetic comprising a cosmetic composition.

Cosmetic composition according to an embodiment of the present invention may be a liquid, a solid or powder with a viscosity, but is not limited thereto. Specifically, the cosmetic composition may have a formulation selected from the group consisting of water-in-oil (W / O), oil-in-water (O / W), oil dispersion, water dispersion and solubilization.

In one embodiment the cosmetic composition is, for example, makeup primer, makeup base, liquid or solid foundation, concealer, lipstick, lip gloss, powder, lip liner, eyeliner, mascara, eyebrow, eyeshadow, blusher, twin It may be formulated as a cake, sunscreen, lotion, cream or essence, but is not limited thereto.

In addition, as an embodiment, the cosmetics may further include a carrier supporting the cosmetic composition. The cosmetic may further include a container including a lower portion for storing a cosmetic composition applicator and an upper portion of a lid to which a mirror or the like may be attached, and a cosmetic container generally referred to simply as a “fact”, but It is not limited.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention, and it will be apparent to those skilled in the art that the scope of the present invention is not to be construed as being limited by these examples.

Test Example 1 Raw Material Safety

The safety of the skin of various antibacterial substances including antibacterial substances according to the present invention was confirmed by the following method, and skin allergy, skin irritation, reproductive toxicity, and carcinogenicity of each substance are shown in the following table.

Skin irritation was determined by observing the skin response of 5 adult males when 4% antimicrobial material was applied using a patch for 48 hours.

Dermal allergy, reproductive toxicity and carcinogenicity were assessed according to the fragrance safety review and assessment methodology or usage guideline established by the International Association of perfumers (IFRA)-rifm experts. The evaluation method and the evaluation results can be found in the Environmental Working Group (EWG) http://www.ewg.org.

Test Example 2 Antibacterial Activity

The antimicrobial activity of the cosmetic composition applicator including various antimicrobial substances according to an embodiment of the present invention was analyzed as follows.

First, the urethane sponge for the cosmetic composition applicator including the antimicrobial substances corresponding to Examples 1 to 6 and Comparative Examples 2 and 3 of Table 3 was prepared by the following method. The composition of the raw material used at this time is as follows.

Each raw material (about 30 kg in total amount) of the said [Table 2] was put into the kneader whose capacity which adjusted temperature to 40 degreeC was 30 L, and kneaded for 30 minutes by the rotation speed of 15 rpm. This was extruded at the set temperature of 40 degreeC, degassing under reduced pressure from the vent type extruder equipped with T-die of 300-20 mm of dimensions. The extruded molded product was filled in a box-shaped container with an upper surface of 300 mm in length, 600 in length, and 30 mm in height with an SUS 304 punching metal agent. This was immersed in water at 50 ° C. for 24 hours to replace dimethylformamide with water, so-called water coagulation. After the coagulation was completed and most of the inorganic salts (forget-me-not) were extracted, the molded product was separated from the container, put into a domestic washing machine, and washed with water at 50 ° C. Then, it dried over 100 hours at 100 degreeC using the box type dryer.

The obtained sponge was removed with a slice machine to obtain an urethane sponge having a thickness of 8 mm. Asper F hardness of this sponge is 55, the average cell size by SEM photograph is 100 µm, and the density is 0.15 g / cm ³ .

Comparative Example 1 is a sponge manufactured by the same method except that the production method does not contain an antimicrobial material.

Then, the prepared sponge was fixed to a string to prepare a cosmetic composition applicator in the form of a triple puff with a string. At this time, the triple layer is composed of a surface (wet polyurethane), a cushion layer (dry polyurethane) and a coating layer (wet polyurethane) in contact with the skin, the size of each applicator is 54mm in diameter, the thickness is 6T (6mm) ).

The antimicrobial activity was analyzed by inoculating Staphylococcus or pathogen, fungus to each of the cosmetic composition applicator of Comparative Examples 1 to 4 and Examples 1 to 6 of the triple layer puff form. The antibacterial assay is according to the following method (see test methods MIC (Minimum inhibitory concentration)), Staphylococcus aureus Staphylococcus ATCC 6538 ( staphylococcus aureus ATCC 6538 ), pneumococcal coliforms ATCC 8739 ( Escherichia coli ATCC 8739), the fungus Aspergillus Brazilian Lee N-Sys (Aspergillus brasiliensis ATCC 16404 ).

Antimicrobial Test Method

1) Prepare microbial solution about 10E9 CFU / ml by preincubating the microorganism to be evaluated.

2) Measure 1.5g of the fabric sample into a sterile plastic container.

3) At this time, close the sample and the bottom of the container so that there is no space.

4) Dilute the bacterial solution with 0.85% NaCl and inoculate 10E6 ml.

5) Close the container lid tightly to prevent drying.

6) After inoculation, incubate at 35 ° C. for 18 hours.

7) Add 10 ml of NaCl 0.85% to the container, mix well, and dilute to proper concentration to measure the number of bacteria.

Determination of Reduction

A = Log10 Reduction at sampling Interval = Log10 Baseline recovery- Log10 Sampling Interval

If the A value is 3 or more (99.9%), it is determined to be effective.

The results are shown in Table 3 below. At this time, the numerical value of each antimicrobial substance in the table below is 8mm in thickness, asker F type hardness 55, average cell size 100μm, the content of the antimicrobial substance to the total weight of the urethane sponge of the density 0.15g / cm ³ (% by weight) to be.

As shown in the results, it can be confirmed that the cosmetic composition applicator according to an embodiment of the present invention has an antimicrobial activity by including an antimicrobial material.

Test Example 3 Stability Analysis

Stability of the cosmetic composition applicator including various antimicrobial substances according to an embodiment of the present invention was measured or evaluated as follows.

At this time, the hardness was measured with an ASKER (manufacturer) DUROMETER HARDNESS measuring instrument (Type F).

Tensile strength after cutting the applicator left at 70 ℃, 95% humidity for 7 days to 10mm * 50mm standard, and after pulling the upper and lower 10mm of the sample removed the polyurethane microporous film layer (sheet) of the upper part at a constant speed The maximum load W at break and the original cross-sectional area S of the sample were measured. It measured by the Instron test apparatus 3344, and the value of tensile strength was calculated | required by W / S (Kg / cm <^2> ).

The elongation rate is measured by cutting the applicator to a 10mm * 50mm standard, holding the upper and lower 10mm of the sample from which the upper polyurethane microporous film layer (sheet) is removed and measures the length L while the sample is broken according to the tensile test. If the length of the pull start point is Lo, the elongation can be expressed by the following equation. The measurement was carried out by pulling with an Instron test instrument (3344).

[Equation 2]

% Elongation = {(L-Lo) / Lo} * 100

The tensile strength and the elongation rate were measured according to JIS K 6400-5: 2012.

As shown in the above results, the cosmetic composition applicator according to an embodiment of the present invention includes an antimicrobial material to secure an antimicrobial power, and does not contain an antimicrobial substance against tensile strength and elongation rate (Comparative Example 1), It can be seen that the physical properties of the superior level than the antimicrobial agent (Comparative Example 2).

Test Example 4 Analysis of antimicrobial activity according to antimicrobial content

The antimicrobial activity and stability according to the content of the antimicrobial material contained in the cosmetic composition applicator according to an embodiment of the present invention was analyzed as follows.

The following Comparative Examples and Examples are the same applicator except for the content of the antimicrobial material in Example 3 containing isopropyl methylphenol (IPMP) as the antimicrobial material in the [Test Example 2].

The antimicrobial activity evaluation and stability evaluation method are the same as the method of [Test Example 2] and [Test Example 3].

Test Example 5 Makeup Effect and Stability According to Density of Applicator

The following Comparative Examples and Examples are the same applicator except for the density of Example 3 containing isopropyl methylphenol (IPMP) as an antimicrobial substance in [Test Example 2].

The apparent density was measured by the apparent density in accordance with JIS K 7222.

Tensile strength and elongation were measured in the same manner as in [Test Example 3].

The delivery rate was calculated according to the following equation from the following absorption amount and discharge rate, and was evaluated to be excellent because it was excellent in 30% or more.

The absorption amount was obtained by pressing the carrier having the cosmetic composition supported by the puff-type applicator at a mass of 1 kgf, taking the cosmetic composition, and measuring the amount of bleeding into each applicator. The discharge amount was measured when the applicator taking the cosmetic composition was applied to the artificial leather 8cm X 8cm with a force of 1kgf mass.

[Equation 1]

Delivery rate (%) = (the amount of the cosmetic composition taken by the applicator discharged to the application object (discharge amount) / the amount of the cosmetic composition absorbed by the applicator device (absorption amount) X 100

The feeling of use evaluated the touch feeling felt at the time of application and the state which the cosmetic composition was apply | coated to the said artificial leather. (◎: Very good, ○: Good, △: Normal, X: Bad)

Test Example 6 Makeup Effect According to Applicator Hardness

The cosmetic delivery power and the feeling of cushion according to the hardness of the cosmetic composition applicator according to an embodiment of the present invention were evaluated as follows.

The following Comparative Examples and Examples are the same applicator (urethane sponge for applicator) except the hardness of Example 3 containing isopropyl methylphenol (IPMP) as an antimicrobial substance in [Test Example 2].

Hardness was measured when measured with a high molecular weight ASKER (manufacturer) rubber hardness meter type F (Type F), and the hardness before the cosmetic composition was absorbed into the cosmetic composition applicator was measured.

Makeup delivery power was evaluated in the same manner as in [Test Example 5].

Cushion was analyzed by clinical evaluation of 20 puff users. The evaluation was based on the degree of makeup and cushioning on the skin. If the cushion is low, it is not soft and makeup is not good.

Claims (14)

1. Isopropyl methyl phenol, phenoxyethanol, chloroxylenol, ethylhexylglycerin, glyceryl caprylate, thymol, calcium phosphate A cosmetic composition applicator comprising a sponge comprising at least one antimicrobial material selected from the group consisting of a silver compound complex (Calcium phosphate-silver compound complex) and a silver ion-silicate complex.
2. The method of claim 1, wherein the sponge is a natural rubber (polyurethane), polyurethane, latex, acrylonitrile-butadiene rubber (Acrylonitrile-butadiene rubber), butadiene rubber (Butadiene rubber), styrene-butadiene rubber (Styrene-butadiene rubber) SBR, Chloroprene rubber, Isoprene-isobutylene rubber, Isoprene rubber, Vulcanized ethylene-propylene rubber, Polysulfide rubber, Silicone rubber rubber, fluoro rubber, urethane rubber, acrylic rubber, ethylene propylene diene monomer (EPDM) rubber, polyvinyl alcohol (PVA) and ethylene vinyl acetate (EVA), and nitrile Cosmetic composition applicator comprising at least one selected from the group consisting of rubber (Nitrile Rubber).
3. The cosmetic composition applicator of claim 2, wherein the polyurethane comprises at least one selected from the group consisting of an ester polyurethane, an ether polyurethane, and a carbonate polyurethane.
4. The cosmetic composition applicator according to claim 1, wherein the sponge comprises 0.5 to 6.0 mass% of the antimicrobial substance with respect to the total mass of the sponge.
5. The cosmetic composition applicator according to claim 1, wherein the cosmetic composition applicator is a film type in which one or more cells on the opposite side and the side of the surface in contact with the skin are closed.
6. The cosmetic composition applicator according to claim 1, wherein the cosmetic composition applicator has a structure including a plurality of layers.
7. The cosmetic composition applicator according to claim 6, wherein the structure is a structure composed of a plurality of sponge layers having different pore sizes, or a structure in which sponges of different materials are composed of a plurality of layers.
8. The cosmetic composition applicator of claim 1, wherein the sponge has an open cell structure.
9. The cosmetic composition applicator according to claim 8, wherein the average cell size of the open cell of the sponge is 20 to 1500 µm.
10. The cosmetic composition applicator according to claim 1, wherein the sponge has a hardness of 30 to 80 based on an ASKER hardness tester Type F.
11. The cosmetic composition applicator according to claim 1, wherein the sponge has a density of 0.05 to 0.2 g / cm ³ .
12. Cosmetic composition applicator of any one of Claims 1-11; And

    Cosmetics comprising a cosmetic composition.
13. The cosmetic composition of claim 12, wherein the cosmetic composition has a formulation selected from the group consisting of water-in-oil (W / O), oil-in-water (O / W), oil dispersion, water dispersion and solubilization.
14. The cosmetic according to claim 12, wherein the cosmetic further comprises a carrier supporting the cosmetic composition.