Cosmetic antibacterial puff and method for producing same

Abstract

The present invention relates to an antibacterial cosmetic puff, which is treated with an antibacterial substance comprising one or more substances selected from the group consisting of hydroxyacetophenone (Hydroxyacetophenone) and cetylpyridinium chloride (cetylpyridinium chloride), and to a method for preparing the antibacterial cosmetic puff, said antibacterial cosmetic puff being characterized in that the antibacterial cosmetic puff has been treated with an antibacterial substance comprising one or more substances selected from the group consisting of hydroxyacetophenone (Hydroxyacetophenone) and cetylpyridinium chloride (cetylpyridinium chloride). Furthermore, the present disclosure relates to a method for manufacturing a cosmetic antibacterial puff, the method comprising a step of treating the puff with a composition comprising an antibacterial substance, the antibacterial substance comprising one or more substances selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride. The antibacterial powder puff for cosmetic use has antibacterial power against bacteria and fungi and has durability and foaming physical properties.

Description

Technical Field

[0001] The present invention relates to an antibacterial cosmetic powder puff and a manufacturing method thereof. The antibacterial cosmetic powder puff is treated with an antibacterial substance, wherein the antibacterial substance comprises at least one selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride. Background Art

[0002] Color cosmetics are cosmetics for decorating the skin, and liquid color cosmetics in particular have been widely used recently because they are more easily spread on the skin than powdered cosmetics. In the past, the liquid color cosmetics as described above were taken out by hand and applied to the face, but there was an inconvenience in that the cosmetics on the hands had to be wiped off or washed off with a tissue after applying the makeup. Therefore, in order to eliminate this inconvenience, a makeup puff was developed to avoid using hands.

[0003] Powder puffs are made of porous materials such as NBR (Nitrile butadiene rubber), SBR (Styrene butadiene rubber), natural rubber, flocking, Rubycell (wet polyurethane), cotton velour, and PVA (Polyvinyl alcohol). When used, liquid cosmetics are loaded in the porous structure so that the cosmetics can be transferred to the skin surface. These powder puffs are easy to use and can take out an appropriate amount of liquid cosmetics from the cosmetic container and transfer the cosmetics to the skin surface, so that the hands will not be stained with cosmetics when applying makeup.

[0004] On the other hand, sebum and sweat are secreted on the face and exposed to dust in the air. Touching the face with hands contaminated by microorganisms and other behaviors provide favorable conditions for the reproduction of microorganisms. Therefore, the powder puff in contact with cosmetics supplies humidity and nutrients from the cosmetics, and when applying the cosmetics to the face, the powder puff directly contacts the surface of the facial skin, and microorganisms can be transferred to the powder puff. The powder puff contaminated by microorganisms is stored in a cosmetic container. The enclosed bag for storing the cosmetic container and the warm indoor space where the dressing table is located have heat preservation properties, and the cosmetics contained in the powder puff from which the cosmetics have been taken out contain water in liquid form. Therefore, this complex environment creates an environment that provides temperature, humidity, and nutrient components favorable for the reproduction of microorganisms in the powder puff. If such a powder puff is used again, it will come into contact with the cosmetics, making the cosmetics easily contaminated by microorganisms, and the contaminated cosmetics can also cause skin problems. In addition, when the powder puffs produced are exposed to high-temperature and high-humidity environments during the circulation and storage processes before being delivered to consumers, there is a problem that microorganisms may reproduce in the powder puffs, and the powder puffs may lose their commercial value.

[0005] Preservatives are used in cosmetics to prevent contamination by microorganisms. However, when using a powder puff to take out cosmetics, the preservatives of the cosmetics remaining in the powder puff are exposed to the air, resulting in a state where they cannot exert their antiseptic power due to the evaporation of volatile substances such as moisture. Therefore, the preservatives contained in the cosmetics cannot prevent the microbial contamination caused by the use of the powder puff. Therefore, it is necessary to develop a powder puff with antibacterial function that can inhibit the reproduction of microorganisms when the powder puff is used.

[0006] For this reason, powder puff manufacturers strive to inhibit microorganisms by performing antibacterial treatment on the powder puffs. Generally, a powder puff is a beauty tool that is convenient for using cosmetics and is classified and managed as an industrial product and is not subject to the Cosmetics Act. Therefore, for such reasons, powder puff manufacturers use antibacterial substances not listed in the catalog of preservatives approved for use in cosmetics to provide antibacterial effects. However, these antibacterial substances cannot ensure safety when in contact with the skin and mostly do not exhibit antibacterial effects.

[0007] Therefore, the inventor of the present invention has developed a cosmetic antibacterial powder puff to ensure safety for the skin, using cosmetic raw materials approved for use according to the Cosmetics Act or raw materials that require restricted use (such as preservatives). Summary of the Invention Problems to be Solved by the Invention

[0008] The object of the present disclosure is to provide a cosmetic antibacterial powder puff treated with an antibacterial substance, which is a powder puff that prevents a cosmetic powder puff from being contaminated by microorganisms during use, and the antibacterial substance is a cosmetic raw material that ensures safety for the skin.

[0009] Moreover, an object of the present disclosure is to provide a method for manufacturing the antibacterial powder puff for makeup.

[0010] Moreover, an object of the present disclosure is to provide a powder puff manufactured according to the above method. Means for solving the problem

[0011] In order to achieve the above object, the present invention provides an antibacterial powder puff for makeup, which is an antibacterial powder puff for makeup treated with an antibacterial substance, and the antibacterial substance includes one or more selected from the group consisting of Hydroxyacetophenone and cetylpyridinium chloride.

[0012] Moreover, the present disclosure provides an antibacterial powder puff for makeup, wherein the antibacterial substance further includes one or more selected from the group consisting of phenoxyethanol, sorbic acid, and a metal ion chelating agent.

[0013] Moreover, the present disclosure provides an antibacterial powder puff for makeup, wherein the antibacterial powder puff for makeup includes: an absorption powder puff layer that absorbs cosmetics during use; a buffer powder puff layer located above the absorption powder puff layer; and an outer skin layer located above the buffer powder puff layer, and the antibacterial substance is treated and contained in the absorption powder puff layer.

[0014] Moreover, the present disclosure provides an antibacterial powder puff for makeup, wherein the absorption powder puff layer is formed of Rubycell material.

[0015] Moreover, the present disclosure provides a method for manufacturing an antibacterial powder puff for makeup, which includes a treatment step of treating a powder puff with a composition containing an antibacterial substance, and the antibacterial substance includes one or more selected from the group consisting of Hydroxyacetophenone and cetylpyridinium chloride.

[0016] Moreover, the present disclosure provides a manufacturing method, wherein based on the total weight of the composition containing the antibacterial substance, the composition contains 0.01% by weight to 1.0% by weight of Hydroxyacetophenone.

[0017] Moreover, the present disclosure provides a manufacturing method, wherein based on the total weight of the composition containing the antibacterial substance, the composition contains 0.01% by weight to 0.1% by weight of cetylpyridinium chloride.

[0018] Moreover, the present disclosure provides a manufacturing method, wherein the composition further includes one or more selected from the group consisting of phenoxyethanol and sorbic acid.

[0019] Moreover, the present disclosure provides a manufacturing method, wherein, based on the total weight of the composition, the composition independently contains 0.01% to 1.2% by weight of one or more selected from the group consisting of phenoxyethanol and sorbic acid.

[0020] Moreover, the present disclosure provides a manufacturing method, wherein the composition further contains a metal ion chelator.

[0021] Moreover, the present disclosure provides a manufacturing method, wherein, based on the total weight of the composition containing the antibacterial substance, the composition contains 0.01% to 2% by weight of a metal ion chelator.

[0022] Moreover, the present disclosure provides a manufacturing method, wherein the treatment step is carried out by impregnating the composition containing the antibacterial substance into a cosmetic puff at a constant temperature of 40°C to 50°C.

[0023] Moreover, the present disclosure provides a manufacturing method, wherein the treatment step includes ultrasonic treatment.

[0024] Moreover, the present disclosure provides a manufacturing method, wherein the ultrasonic treatment is carried out under the conditions of 10 KHz to 30 KHz and 1000 W to 3000 W.

[0025] Moreover, the present disclosure provides a manufacturing method, wherein the treatment step further includes: drying the composition containing the antibacterial substance after impregnating it into a cosmetic puff at a constant temperature of 40°C to 50°C.

[0026] Moreover, the present disclosure provides a manufacturing method, wherein the treatment step is carried out on one or more of the absorption puff layer, buffer puff layer, and outer skin layer in the cosmetic puff.

[0027] Moreover, the present disclosure provides a cosmetic antibacterial puff manufactured according to the above method. Advantages of the Invention

[0028] The cosmetic antibacterial puff of the present disclosure contains hydroxyacetophenone, which is one of the cosmetic raw materials, as an antibacterial substance, and can inhibit the reproduction of microorganisms in the puff. Therefore, it has the effect of showing high antibacterial activity against bacteria and fungi. Moreover, even when containing the antibacterial substance, the physical properties of the puff can be maintained, and the transfer effect of the cosmetic to the skin surface is excellent. Therefore, the makeup effect is extremely good. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view showing the structure of the cosmetic antibacterial puff. Figure 2 It is the result of testing the antibacterial activity of the cosmetic antibacterial puff against Escherichia coli using the KS K 0693 test method according to the type of antibacterial substance. Figure 3 These are the results of testing the antibacterial activity of a cosmetic antibacterial powder puff against Staphylococcus aureus using the KS K 0693 test method according to the type of antibacterial substance. Figure 4 These are the results of testing the antibacterial activity of a cosmetic antibacterial powder puff against Aspergillus brasiliensis using the KS K ISO 13629-2 test method according to the type of antibacterial substance. Figure 5 These are the results of testing the antibacterial activity of a cosmetic antibacterial powder puff against Aspergillus brasiliensis after 20 days of cultivation using the AATCC TM30 test method according to the type of antibacterial substance. Figure 6 These are the results of testing the antibacterial activity of a cosmetic antibacterial powder puff against Aspergillus brasiliensis after 28 days of cultivation using the AATCC TM30 test method according to the type of antibacterial substance. Description of Reference Numerals 100: Cosmetic antibacterial powder puff 110: Absorbent powder puff layer 120: Buffer powder puff layer 130: Outer skin layer 140: Handle Detailed Description of the Invention

[0030] The embodiments or aspects of the present disclosure are illustrated for explaining the technical idea of the present disclosure. The scope of the rights of the present disclosure is not limited to the embodiments or aspects presented below or the specific descriptions thereof.

[0031] Unless otherwise defined, all technical terms and scientific terms used in the present disclosure have the meanings commonly understood by those of ordinary skill in the technical field to which the present disclosure pertains. All terms used in the present disclosure are selected to more clearly illustrate the purpose of the present disclosure, rather than to limit the scope of the rights of the present disclosure.

[0032] It should be understood that expressions such as "including", "comprising", and "having" used in the present disclosure are open-ended terms that imply the possibility of including other embodiments, unless otherwise specified in the phrase or sentence containing such an expression.

[0033] It should be understood that expressions such as "consisting only of the corresponding structure" used in the present disclosure are closed-ended terms that exclude the possibility of including other structures except the corresponding structure.

[0034] Unless otherwise specified, singular expressions recited in the present disclosure may include plural meanings, and similarly, this also applies to the singular expressions recited in the claims.

[0035] According to one aspect of the present disclosure, the purpose of using the term "about" is to include manufacturing process errors contained in specific numerical values or minor numerical adjustments that fall within the technical concept of the present disclosure. For example, the term "about" refers to a range of ±10% of the value it refers to, in one aspect ±5%, and in another aspect ±2%. In the field of the present disclosure, such an approximation is appropriate unless a narrower range is required for the mentioned value.

[0036] Hereinafter, embodiments of the present invention will be described in detail.

[0037] One embodiment of the present invention is a cosmetic antibacterial powder puff, which is a cosmetic antibacterial powder puff treated with an antibacterial substance, and the antibacterial substance contains one or more selected from the group consisting of Hydroxyacetophenone and cetylpyridinium chloride.

[0038] Recently, the use of chemical preservatives as raw materials for cosmetics has been avoided, and diols are used as substitutes. Diols exhibit the effect of inhibiting the proliferation of microorganisms by reducing the water activity of cosmetic formulations, but their antibacterial power against microorganisms is lower than that of chemical preservatives. Therefore, when used in powder puffs, an excessive amount must be used to exhibit antibacterial power. However, it is difficult to attach an excessive amount of diols to the powder puff, and if coated on the powder puff, the physical properties of the powder puff and the cosmetic transfer function may be reduced, so it is not suitable for application to powder puffs.

[0039] Hydroxyacetophenone is classified as an antioxidant as a cosmetic raw material and is known to be highly safe for the skin, but it has never been used as an antibacterial substance in cosmetic powder puffs. Cetylpyridinium chloride is classified as a preservative for cosmetics as a cationic compound that inhibits bacteria and other microorganisms.

[0040] In one embodiment, the antibacterial substance of the present disclosure may further contain one or more selected from the group consisting of phenoxyethanol, sorbic acid, and metal ion chelating agents.

[0041] Phenoxyethanol is used in cosmetics and functions as a preservative and a bactericidal preservative, etc. Sorbic acid inhibits the growth of microorganisms and is used as a preservative for cosmetics and processed foods.

[0042] When the powder puff contains an antibacterial substance containing one or more selected from the group consisting of Hydroxyacetophenone, the cetylpyridinium chloride, phenoxyethanol, and sorbic acid, the antibacterial effect of the powder puff becomes very excellent.

[0043] In one embodiment, the metal ion chelator may be ethylenediaminetetraacetic acid (EDTA: ethylenediaminetetraacetic acid), pentasodium pentetate, disodium EDTA, calcium disodium EDTA, trisodium EDTA, or tetrasodium EDTA, but is not limited thereto.

[0044] In one embodiment, the cosmetic antibacterial powder puff of the present disclosure may include: an absorbent powder puff layer that absorbs cosmetics during use; a buffer powder puff layer located above the absorbent powder puff layer; and an outer skin layer located above the buffer powder puff layer, and the antibacterial substance is treated and contained in the absorbent powder puff layer.

[0045] In one embodiment, the absorbent powder puff layer of the cosmetic antibacterial powder puff can function to inhale the liquid cosmetic composition. The absorbent powder puff layer may include one or more selected from porous Rubycell material, polyurethane foam (PU), styrene-butadiene rubber (SBR), natural rubber, nitrile rubber (NBR), flocking, cotton velour, and polyvinyl alcohol (PVA), but is not limited thereto.

[0046] In one embodiment, the absorbent powder puff layer of the present disclosure may include Rubycell material.

[0047] General polyurethane foam has the properties of water retention and swelling when exposed to water, but the Rubycell material, which is a wet polyurethane, does not have the property of foaming and retaining water during manufacturing, so it can easily transfer the cosmetic composition to the skin surface.

[0048] In one embodiment, the Rubycell material may have a density of 0.01 to 0.3 g / cm 3 of density.

[0049] In one embodiment, the Rubycell material may have a density of 0.01 g / cm 3 or more, 0.05 g / cm 3 or more, 0.1 g / cm 3 or more, 0.15 g / cm 3 or more, 0.3 g / cm 3 or less, 0.25 g / cm 3 or less, or 0.2 g / cm 3 or less, but is not limited thereto.

[0050] In one embodiment, the Rubycell material may have 100 kgf / cm 2Up to 500 kgf / cm 2 of tensile strength.

[0051] In one embodiment, the Rubycell material may have a tensile strength of 100 kgf / cm 2 or more, 150 kgf / cm 2 or more, 200 kgf / cm 2 or more, 250 kgf / cm 2 or more, 300 kgf / cm 2 or more, up to 500 kgf / cm 2 or less, 450 kgf / cm 2 or less, 400 kgf / cm 2 or less, or 350 kgf / cm 2 or less, but is not limited thereto.

[0052] In one embodiment, the pore size of the Rubycell material can be 5 to 500 μm.

[0053] In one embodiment, the pore size of the Rubycell material can be 5 μm or more, 10 μm or more, 50 μm or more, 100 μm or more, 150 μm or more, 200 μm or more, 250 μm or more, up to 500 μm, 450 μm or less, 400 μm or less, 350 μm or less, or 300 μm or less, but is not limited thereto.

[0054] In one embodiment, the Rubycell material may have an Asker durometer type F scale of 10 to 100.

[0055] In one embodiment, the Rubycell material may have an Asker durometer type F scale of 10 or more, 20 or more, 30 or more, 40 or more, 50 or more, up to 100, 90 or less, 80 or less, 70 or less, or 60 or less, but is not limited thereto.

[0056] In one embodiment, the buffering puff layer of the cosmetic antibacterial puff contains air and can gently conform to the skin surface. The buffering puff layer may comprise one or more selected from polyurethane foam, polyether, polyester, styrene-butadiene rubber, natural rubber, nitrile rubber, thermoplastic polyurethane elastomer (TPU), polyurethane sheet, synthetic leather, chloroprene rubber (CR), polyvinyl chloride, polyethylene, and ethylene-vinyl acetate butyl rubber (EVA) having a porous structure, but is not limited thereto.

[0057] In one embodiment, the outer layer of the antibacterial cosmetic puff can serve to maintain the shape of the puff. The outer layer can be made of materials such as polyurethane foam, polyurethane sheet, synthetic leather, rubber, etc., but is not limited thereto.

[0058] In one embodiment, the antibacterial cosmetic puff of the present disclosure may further include one or more layers. The additional layer can be disposed between any two of the absorbent puff layer, the buffer puff layer, and the outer layer.

[0059] In one embodiment, the additional layer of the antibacterial cosmetic puff of the present disclosure may contain one or more materials selected from acrylic resins, polyurethane resins, epoxy resins, silicone resins, latex resins, and thermoplastic resins, but is not limited thereto, as long as it can join the respective layers to maintain the shape of the puff or can serve as a waterproofing agent, it can be applied without limitation.

[0060] One embodiment of the present disclosure is a method for manufacturing an antibacterial cosmetic puff, the manufacturing method including a treatment step of treating the puff with a composition containing an antibacterial substance, the antibacterial substance containing one or more selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride.

[0061] In one embodiment, based on the total weight of the composition, the composition containing an antibacterial substance of the present disclosure may contain 0.01 wt% to 1.0 wt% of hydroxyacetophenone.

[0062] In one embodiment, illustratively, based on the total weight of the composition containing an antibacterial substance, it may contain 0.01 wt% or more, 0.05 wt% or more, 0.1 wt% or more, 0.2 wt% or more, 0.3 wt% or more, 0.4 wt% or more, 0.5 wt% or more, 1 wt% or less, 0.9 wt% or less, 0.8 wt% or less, 0.7 wt% or less, or 0.6 wt% or less of hydroxyacetophenone, but is not limited thereto.

[0063] In one embodiment, based on the total weight of the composition, the composition containing an antibacterial substance of the present disclosure may contain 0.01 wt% to 0.1 wt% of cetylpyridinium chloride.

[0064] In one embodiment, illustratively, based on the total weight of the composition, it may contain 0.01 wt% or more, 0.02 wt% or more, 0.03 wt% or more, 0.04 wt% or more, 0.05 wt% or more, 0.1 wt% or less, 0.09 wt% or less, 0.08 wt% or less, 0.07 wt% or less, or 0.06 wt% or less of cetylpyridinium chloride, but is not limited thereto.

[0065] In one embodiment, the composition of the present disclosure may further comprise one or more selected from the group consisting of phenoxyethanol and sorbic acid.

[0066] In one embodiment, based on the total weight of the composition, the composition of the present disclosure independently comprises 0.01% to 1.2% by weight of one or more selected from the group consisting of phenoxyethanol and sorbic acid.

[0067] In one embodiment, illustratively, based on the total weight of the composition, it may comprise 0.01% by weight or more, 0.05% by weight or more, 0.1% by weight or more, 0.2% by weight or more, 0.3% by weight or more, 0.4% by weight or more, 0.5% by weight or more, 0.6% by weight or more, 1.2% by weight or less, 1.1% by weight or less, 1.0% by weight or less, 0.9% by weight or less, 0.8% by weight or less, or 0.7% by weight or less of phenoxyethanol, but is not limited thereto.

[0068] In one embodiment, illustratively, based on the total weight of the composition, it may comprise 0.01% by weight or more, 0.05% by weight or more, 0.1% by weight or more, 0.2% by weight or more, 0.3% by weight or more, 0.4% by weight or more, 0.5% by weight or more, 0.6% by weight or more, 1.2% by weight or less, 1.1% by weight or less, 1.0% by weight or less, 0.9% by weight or less, 0.8% by weight or less, or 0.7% by weight or less of sorbic acid, but is not limited thereto.

[0069] In one embodiment, the composition of the present disclosure may further comprise a metal ion chelating agent.

[0070] In one embodiment, the metal ion chelating agent may be ethylenediaminetetraacetic acid (EDTA: ethylenediaminetetraacetic acid), pentasodium pentetate, disodium EDTA, calcium disodium EDTA, trisodium EDTA, or tetrasodium EDTA, but is not limited thereto.

[0071] In one embodiment, based on the total weight of the composition, the composition of the present disclosure may further comprise 0.01% to 2% by weight of a metal ion chelating agent.

[0072] In one embodiment, illustratively, based on the total weight of the composition, it may contain a metal ion chelating agent in an amount of 0.01 wt% or more, 0.05 wt% or more, 0.1 wt% or more, 0.2 wt% or more, 0.3 wt% or more, 0.4 wt% or more, 0.5 wt% or more, 0.6 wt% or more, 0.7 wt% or more, 0.8 wt% or more, 0.9 wt% or more, 1 wt% or more, 2 wt% or less, 1.9 wt% or less, 1.8 wt% or less, 1.7 wt% or less, 1.6 wt% or less, 1.5 wt% or less, 1.4 wt% or less, 1.3 wt% or less, 1.2 wt% or less, or 1.1 wt% or less, but is not limited thereto.

[0073] In one embodiment, the solvent of the composition of the present disclosure may be water, purified water, distilled water, or ethanol, but is not limited thereto.

[0074] In one embodiment, the processing step of the manufacturing method of the present disclosure may include a step of impregnating a cosmetic puff with a composition containing an antibacterial substance at a constant temperature of 40°C to 50°C.

[0075] In one embodiment, the processing step may include ultrasonic treatment.

[0076] As a method for introducing an antibacterial substance into a cosmetic puff, a method of simply placing the cosmetic puff in a solution containing the antibacterial substance to impregnate it or impregnating it by heating has been used. However, when the cosmetic puff is simply impregnated in a solution containing the antibacterial substance, the antibacterial substance is not uniformly introduced into the interior of the cosmetic puff. Therefore, there is a problem that the expected antibacterial power cannot be obtained. Therefore, when the cosmetic puff is placed in the prepared composition containing the antibacterial substance and ultrasonic treatment is performed, due to the generation of microvibrations, the antibacterial substance is uniformly distributed in the cosmetic puff.

[0077] In one embodiment, the ultrasonic treatment may be performed at a frequency of 10 KHz to 30 KHz and an intensity of 1000 W to 3000 W.

[0078] In one embodiment, the frequency of the ultrasonic treatment can be processed at 10 KHz or more, 11 KHz or more, 12 KHz or more, 13 KHz or more, 14 KHz or more, 15 KHz or more, 16 KHz or more, 17 KHz or more, 18 KHz or more, 19 KHz or more, 20 KHz or more, 30 KHz or less, 29 KHz or less, 28 KHz or less, 27 KHz or less, 26 KHz or less, 25 KHz or less, 24 KHz or less, 23 KHz or less, 22 KHz or less, or 21 KHz or less, but is not limited thereto.

[0079] In one embodiment, the intensity of the ultrasonic treatment can be carried out at 1000 W or more, 1100 W or more, 1200 W or more, 1300 W or more, 1400 W or more, 1500 W or more, 1600 W or more, 1700 W or more, 1800 W or more, 1900 W or more, 2000 W or more, 3000 W or less, 2900 W or less, 2800 W or less, 2700 W or less, 2600 W or less, 2500 W or less, 2400 W or less, 2300 W or less, 2200 W or less, or 2100 W or less, but is not limited thereto.

[0080] In one embodiment, the ultrasonic treatment can be carried out for a total of 5 minutes to 30 minutes.

[0081] In one embodiment, the ultrasonic treatment can be carried out for a total of 5 minutes or more, 10 minutes or more, 15 minutes or more, 30 minutes or less, 25 minutes or less, or 20 minutes or less, but is not limited thereto.

[0082] In one embodiment, the treatment step of the present disclosure may further include: impregnating the composition containing the antibacterial substance into the cosmetic puff and then drying it at a constant temperature of 40°C to 50°C.

[0083] In one embodiment, the treatment step of the present disclosure can be carried out for one or more of the absorbent puff layer, the cushion puff layer, and the outer skin layer in the cosmetic puff.

[0084] In one embodiment, one or more of the absorbent puff layer, the cushion puff layer, and the outer skin layer can be impregnated into the composition containing the antibacterial substance in a separately independent or combined state.

[0085] One embodiment of the present disclosure is a cosmetic antibacterial puff manufactured by the manufacturing method of the cosmetic antibacterial puff of the present disclosure.

[0086] In one embodiment, the cosmetic antibacterial puff may contain one or more selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride.

[0087] In one embodiment, the cosmetic antibacterial puff may further contain one or more selected from the group consisting of phenoxyethanol, sorbic acid, and metal ion chelating agents.

[0088] In one embodiment, the metal ion chelating agent may be ethylenediaminetetraacetic acid (EDTA), pentasodium pentetate, disodium EDTA, calcium disodium EDTA, trisodium EDTA, or tetrasodium EDTA, but is not limited thereto.

[0089] In one embodiment, the antibacterial cosmetic puff includes: an absorbent puff layer that absorbs cosmetics during use; a buffer puff layer located above the absorbent puff layer; and an outer skin layer located above the buffer puff layer, and the antibacterial substance is contained in the absorbent puff layer after being processed.

[0090] In one embodiment, the absorbent puff layer of the antibacterial cosmetic puff can function to inhale a liquid cosmetic composition. The absorbent puff layer may include one or more selected from porous-structured Rubycell material (Rubycell), polyurethane foam (PU), styrene-butadiene rubber (SBR), natural rubber, nitrile rubber (NBR), flocking, cotton velour, and polyvinyl alcohol (PVA), but is not limited thereto.

[0091] In one embodiment, the absorbent puff layer may include Rubycell material.

[0092] In one embodiment, the buffer puff layer contains air and can function to gently conform to the skin surface. The buffer puff layer may include one or more selected from porous-structured polyurethane foam, styrene-isoprene-styrene (SIS), styrene-ethylene-butene-styrene (SEBS), polyvinyl alcohol, styrene-butadiene rubber, natural rubber, nitrile rubber, latex, silicone, nitrile rubber, butyl rubber, chloroprene rubber (CR), polyvinyl chloride, polyethylene, and ethylene-vinyl acetate butyl rubber (EVA), but is not limited thereto.

[0093] In one embodiment, the outer skin layer can function to maintain the shape of the puff. The outer skin layer may be made of materials such as polyurethane foam, polyurethane board, synthetic leather, and rubber, but is not limited thereto.

[0094] In one embodiment, the antibacterial cosmetic puff of the present disclosure may further include one or more layers. The additional layer may be provided between any two of the absorbent puff layer, the buffer puff layer, and the outer skin layer.

[0095] In one embodiment, the additional layer of the antibacterial cosmetic puff of the present disclosure may be made of one or more materials selected from acrylic resins, polyurethane resins, epoxy resins, silicone resins, and latex resins, but is not limited thereto, as long as it can join the respective layers to maintain the shape of the puff or can function as a waterproof layer, it can be applied without limitation.

[0096] Hereinafter, the embodiments of the present disclosure will be described in detail. However, the following embodiments are provided only for easier understanding of the present disclosure, and do not limit the content of the present disclosure thereby.

[0097] Manufacturing Example of Antibacterial Powder Puff for Cosmetics Measure the antibacterial substances according to Table 1 below. It is designed that in the control group, there is no treatment with antibacterial substances at all, while in Examples 1 to 2 and Comparative Examples 1 to 6, there is only one antibacterial substance, in Examples 3 to 6 and Comparative Examples 7 to 9, there are two antibacterial substances, and in Examples 7 to 9 and Comparative Example 12, there are three antibacterial substances.

[0098] Add purified water to a thermostatic water bath equipped with a stirrer and adjust the temperature to 40°C to 70°C. Slowly add the measured antibacterial substances to the heated purified water and stir until the antibacterial substances are dissolved. After a certain period of time, stir the mixture again to ensure that the antibacterial substances are completely dissolved.

[0099] [Table 1] (Unit: wt%, based on the total weight of the composition)

[0100] Hereinafter, a Rubycell material (absorbent puff layer) with a density of 0.11 - 0.14 g / cm 3 , a tensile strength of 300 - 360 kgf / cm 2 , a pore size of 25 - 400 μm and an Asker hardness F-type standard of 25 - 50 is placed in a thermostatic water bath where the temperature of the composition containing the antibacterial substance is maintained at 40°C to 50°C. The composition containing the antibacterial substance is subjected to ultrasonic treatment at 20 KHz and 2000 W for 20 minutes in such a way that the antibacterial substances can be evenly distributed in the Rubycell material. Take out the treated Rubycell material from the composition and place it in a thermostatic dryer at 40°C to 50°C and dry it for 4 to 5 hours. Place a polyester foam on the dried Rubycell material as a buffer puff layer and bond them, and place a polyurethane sheet on the polyester foam as an outer skin layer and bond them, thereby manufacturing a cosmetic antibacterial puff.

[0101] Experimental Example 1. Evaluation of Antibacterial Effect of Antibacterial Powder Puff for Cosmetics (1) Antibacterial activity test against bacteria The antibacterial activity test against bacteria is carried out according to the plate count method (KS K 0693 test method), and two kinds of test bacteria, Escherichia coli (E. coli) (deposit number: ATCC 8739) and Staphylococcus aureus (S. aureus) (deposit number: ATCC 6538), are used. Specifically, 0.2 ml of the test bacteria (1 ± 0.3) × 10 5per ml, placed in a container with a sterilized lid, cultured in a medium at 37 ± 1 °C, and the viable bacteria count in the powder puff was measured after 0 hours and 18 hours and recorded in Table 2.

[0102] 1) Treated with an antibacterial substance When treated with an antibacterial substance, Example 1 treated with hydroxyacetophenone and Example 2 treated with cetylpyridinium chloride showed particularly high antibacterial effects against bacteria compared to the control group not treated with an antibacterial substance (Table 2).

[0103] 2) Treated with two antibacterial substances Based on the result that the example treated with hydroxyacetophenone showed the best antibacterial effect, when hydroxyacetophenone was mixed with one of the other seven antibacterial substances respectively, the cases of mixing with cetylpyridinium chloride (Example 3), phenoxyethanol (Example 4), sorbic acid (Example 5), and EDTA (Example 6) showed better antibacterial effects compared to the other two cases of mixing (Table 2).

[0104] 3) Treated with three antibacterial substances When one of the remaining six antibacterial substances was mixed and treated with hydroxyacetophenone and cetylpyridinium chloride, which showed the best effects in the cases of mixing two kinds, the cases of mixing with phenoxyethanol (Example 7), sorbic acid (Example 8), and EDTA (Example 9) showed better effects compared to the other three cases of mixing (Table 2).

[0105] 4) Comparison with commercially available antibacterial powder puffs for makeup A commercially available antibacterial powder puff for makeup (Comparative Example 13) was obtained and the above-mentioned antibacterial force test against bacteria was carried out in the same manner. As a result, compared to the control group not treated with an antibacterial substance, it showed an antibacterial effect, but compared to Examples 1 to 9, Comparative Example 13 showed a lower antibacterial effect (Table 2, Figure 2 and Figure 3 ).

[0106] (2) Antifungal force test - Plate count method According to the plate count method (KS K ISO 13629-2), Aspergillus brasiliensis (preservation number: ATCC 16404) was used as the test bacterium. Specifically, 0.2 ml of spore suspension (1 - 3) × 10 5 per ml was inoculated on the surface of each powder puff that contacts cosmetics and the skin surface, placed in a container with a sterilized lid, cultured in a medium at 30 ± 2 °C for 0 hours and 48 hours, and the viable bacteria count in the powder puff was measured and recorded in Table 2.

[0107] 1) Treated with an antibacterial substance When treated with an antibacterial substance, Example 1 treated with hydroxyacetophenone and Example 2 treated with cetylpyridinium chloride showed particularly high antibacterial effects compared to the control group not treated with an antibacterial substance (Table 2).

[0108] 2) Treated with two antibacterial substances Based on the result that the example treated with hydroxyacetophenone showed the best antibacterial effect, when hydroxyacetophenone was mixed and treated with one of the other seven antibacterial substances respectively, the cases of mixing and using cetylpyridinium chloride (Example 3), phenoxyethanol (Example 4), sorbic acid (Example 5), and EDTA (Example 6) showed excellent antibacterial effects compared to the cases of mixing and treating with the other two (Table 2).

[0109] 3) Treated with three antibacterial substances When one of the remaining six antibacterial substances was mixed and treated respectively in hydroxyacetophenone and cetylpyridinium chloride, which showed the best effects in the examples of mixing and using two, almost the same effects were presented in all cases (Table 2).

[0110] 4) Comparison with commercial cosmetic antibacterial powder puffs A commercial cosmetic antibacterial powder puff (Comparative Example 13) was obtained and the above-mentioned test for antibacterial activity against fungi was carried out in the same way. As a result, compared to the control group not treated with an antibacterial substance, it showed an antibacterial effect, but compared to Examples 3 to 5, 7 and 9, and Comparative Examples 7, 10 and 12, the antibacterial effect shown was lower (Table 2 and Figure 4 ).

[0111] (3) Test for antibacterial activity against fungi - AATC TM30 test method Aspergillus brasiliensis (preservation number: ATCC 16404) was used as the test bacterium. Specifically, in order to confirm the degree to which the bacteria on the outer layer spread to the powder puff absorption layer, for the control group and Example 3, the outer layer (the part with a handle of the powder puff) was brought into contact with the culture medium inoculated with the spore suspension and cultured at 25°C. After 20 days and 28 days of culture, the degree of spread of mold spores to the powder puff was measured, the antibacterial activity was qualitatively evaluated, and it was recorded in Table 2 from 0 points (no antibacterial effect) to 5 points (very excellent antibacterial effect). Compared to the control group not treated with an antibacterial substance, Example 3 treated with both hydroxyacetophenone and cetylpyridinium chloride showed excellent antibacterial effects (Table 2, Figure 5 and Figure 6 ).

[0112] [Table 2]

[0113] Experimental Example 2. Physical Property Evaluation of Antibacterial Powder Puff for Cosmetics After measuring and evaluating the physical properties related to hardness, tensile strength, and elongation for the control group of cosmetic antibacterial puffs, Example 3, and Comparative Example 13, the results are shown in Table 3.

[0114] For hardness, it was measured using an ASKER (manufacturer) DUROMETER HARDNESS tester (Type F). The area of the pressure foot in contact with the sample was 80 mm, and the sample was cut into 200 mm * 200 mm before use. The hardness was measured by placing the hardness tester on the test piece under constant temperature and humidity conditions (20 - 25 °C, 40 - 60%). The result value is displayed in arbitrary units from 1 to 100. For tensile strength, under constant temperature and humidity conditions (20 - 25 °C, 40 - 60%), after cutting the antibacterial-treated Rubycell material into a size of 10 mm * 50 mm, hold the upper and lower ends of the sample, which has had the outer cortex removed from the upper end, by 10 mm and pull at a constant speed to measure the maximum load W at the moment of test piece fracture and the original cross-sectional area S of the sample. The measurement was carried out using an Instrong test device (3344), and the value of tensile strength was recorded in kgf / cm 2 For elongation, after cutting the applicator into a size of 10 mm * 50 mm, hold the upper and lower ends of the sample, which has had the outer cortex removed from the upper end, by 10 mm and measure the length L during sample fracture according to the tensile test. If the length at the start of stretching is L o , the elongation can be expressed by the following formula. The elongation was measured according to JIS K 6400 - 5:2012.

[0115] [Mathematical formula 1] Elongation (%) = { (L - L o ) / L o} * 100

[0116] It can be confirmed that Example 3 treated with the antibacterial substance has excellent physical properties compared to the control group not treated with the antibacterial substance, and Example 3 exhibits physical properties similar to those of Comparative Example 13 currently on the market (Table 3).

[0117] [Table 3]

[0118] Experimental Example 3. Evaluation of Cosmetic Transfer Rate of Antibacterial Powder Puff for Cosmetics Measure the absorption and excretion amounts of the cosmetics and calculate the cosmetic transfer rate of the antibacterial powder puff for makeup according to the following formula. If the value is 30% or more, it is evaluated that the transfer rate of the cosmetics is excellent, and the results are shown in Table 4.

[0119] [Mathematical formula 2] Transfer rate (%) = (Amount of the cosmetic composition discharged to the application object through the powder puff (excretion amount) / Amount of the cosmetic composition absorbed by the powder puff (absorption amount)) X 100

[0120] Compared with the control group not treated with the antibacterial substance, Example 3 has excellent transfer ability and shows a transfer ability similar to that of Comparative Example 13 on the market (Table 4).

[0121] [Table 4] Control Group Example 3 Comparative Example 13 Transfer Rate (%) 30 36 32

[0122] Experimental Example 4. Evaluation of Usability of Antibacterial Powder Puff for Cosmetics Let 20 users aged between 20 and 40 evaluate the usability and elasticity of the powder puffs for makeup of the control group, Example 3 and Comparative Example 13. The usability is evaluated based on the following evaluation criteria through the comprehensive touch feeling on the skin surface when applying cosmetics with the powder puff for makeup, and the elasticity is evaluated based on the following evaluation criteria through the degree of elasticity felt when applying a certain pressure after the powder puff for makeup contacts the skin surface. The average values are shown in Table 5 below.

[0123] <Usability evaluation criteria> 1 point: Poor usability 2 points: Average usability 3 points: Good usability 4 points: Very good usability

[0124] <Elasticity evaluation criteria> 1 point: Low elasticity 2 points: Average elasticity 3 points: Good elasticity

[0125] [Table 5] Control Group Example 3 Comparative Example 13 Usability 2 4 3 Elastic Feeling 1 2 2

Claims

1. A cosmetic antibacterial powder puff treated with an antibacterial substance, wherein: The antibacterial substance includes at least one selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride.

2. The cosmetic antibacterial powder puff according to claim 1, wherein: The antibacterial substance further comprises at least one selected from the group consisting of phenoxyethanol, sorbic acid and metal ion chelating agent.

3. The cosmetic antibacterial powder puff according to claim 1, wherein: The cosmetic antibacterial powder puff comprises: Absorbent puff layer, absorbs makeup when used; a buffer powder puff layer, located on the absorption powder puff layer; and The outer skin layer is located above the cushioning puff layer. The antibacterial substance is treated and contained in the absorption puff layer.

4. The antibacterial cosmetic powder puff according to claim 3, wherein: The absorption puff layer is formed of Rubycell material.

5. A method for manufacturing an antibacterial cosmetic powder puff, comprising the step of treating the cosmetic powder puff with a composition containing an antibacterial substance, wherein: The antibacterial substance includes at least one selected from the group consisting of hydroxyacetophenone and cetylpyridinium chloride.

6. The manufacturing method according to claim 5, wherein: The composition comprises 0.01 wt % to 1.0 wt % of the hydroxyacetophenone based on the total weight of the composition.

7. The manufacturing method according to claim 5, wherein: The composition comprises 0.01 wt % to 0.1 wt % of the cetylpyridinium chloride based on the total weight of the composition.

8. The manufacturing method according to claim 5, wherein: The composition further comprises one or more selected from the group consisting of phenoxyethanol and sorbic acid.

9. The manufacturing method according to claim 8, wherein: The composition independently comprises 0.01 wt % to 1.2 wt % of one or more selected from the group consisting of phenoxyethanol and sorbic acid, based on the total weight of the composition.

10. The manufacturing method according to claim 5, wherein: The composition also includes a metal ion chelator.

11. The manufacturing method according to claim 10, wherein: The composition comprises 0.01 wt % to 2 wt % of the metal ion chelating agent based on the total weight of the composition.

12. The manufacturing method according to any one of claims 5 to 11, wherein: The treatment step is performed by impregnating the cosmetic puff with the composition containing the antibacterial substance at a constant temperature of 40°C to 50°C.

13. The manufacturing method according to claim 12, wherein: The treating step includes ultrasonic treatment.

14. The manufacturing method according to claim 13, wherein: The ultrasonic treatment is performed under the conditions of 10 KHz to 30 KHz and 1000 W to 3000 W.

15. The manufacturing method according to claim 12, wherein: The treatment step further comprises: impregnating the cosmetic powder puff with the composition containing the antibacterial substance and then drying the puff at a constant temperature of 40° C. to 50° C.

16. The manufacturing method according to claim 12, wherein: The treatment step treats at least one of the absorption puff layer, the buffer puff layer and the outer skin layer in the cosmetic powder puff.

17. A cosmetic antibacterial powder puff, wherein: Produced according to the method according to any one of claims 5 to 11.

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