Container for Customized Cosmetics, Customized Cosmetics, and Method for Preparing the Same

Abstract

The present invention relates to a customized cosmetic container, a customized cosmetic comprising said container, and a method for manufacturing saids. According to one aspect of the present invention, a customized cosmetic container is provided comprising a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on said substrate, wherein the customized cosmetic container comprises a coating layer for water-based ink printing comprising a water-soluble polymer, an acrylic copolymer, and silica on said cosmetic non-receiving portion. According to the present invention, the adhesion and fixation of the water-based ink are improved through the coating layer formed on the surface of the substrate, thereby ensuring stable printing quality even on a substrate, particularly a plastic substrate. Accordingly, smudging, peeling, or printing defects that may occur during water-based ink printing can be effectively suppressed.

Description

Technology Field

[0001] The present invention relates to a customized cosmetic container, a customized cosmetic comprising said container, and a method for manufacturing the same. Background Technology

[0002] Traditionally, cosmetics have been traded through a system where manufacturers design, manufacture, and distribute standardized products in advance. However, as the trend of personalized consumption accelerates globally, custom manufacturing optimized for individual tastes and personalities is becoming increasingly popular across various industries. In the cosmetics industry as well, there is a growing demand for customized cosmetics that can enhance satisfaction by reflecting these consumer needs.

[0003] Recently, there has been a growing interest in customized color cosmetics, particularly those that allow consumers to select shades suitable for specific situations or purposes, as well as colors that match their skin tone or preferences. Consequently, customized cosmetics are rapidly evolving into technologies that combine with IT and device technologies, enabling devices to automatically manufacture and deliver cosmetics on the spot when consumers place orders for their desired colors or shades. Prior art literature

[0004] Korean Registered Patent No. 10-2808080 The problem to be solved

[0005] Consumers have a desire to customize the appearance of the items they own to suit their personal tastes. The inventors conceived that satisfaction with customized cosmetics could be further enhanced if this desire could also be satisfied with cosmetic containers. Accordingly, they sought to develop a technology in which a device automatically manufactures and provides cosmetic containers on the spot, just as a consumer orders a desired design for the contents.

[0006] Meanwhile, realizing customized cosmetics requires manufacturing technology capable of producing small quantities of diverse products and responding quickly to consumer choices. Furthermore, safety, ease of handling, and consideration of human contact during the manufacturing process are emerging as important factors. As one technology that meets these requirements, a printing method using water-based ink, which generates minimal harmful substances during the process and is easy to handle, can be considered.

[0007] However, cosmetic containers must not warp, deform, or exhibit external defects during consumer use or storage; yet, when using paper containers and water-based printing methods, it was difficult to ensure durability and dimensional stability. To address this issue, using UV-curing inks, solvent-based inks, or equivalent inks raised concerns regarding their harmful effects on the human body, making them unsuitable for application to customized cosmetic containers that may come into direct contact with consumers' hands or skin. Consequently, when using durable substrates other than paper, such as metal or plastic, direct printing with water-based ink was not feasible due to the surface characteristics of the materials, making it difficult to ensure print quality, adhesion, and durability.

[0008] The objective of the present invention is to provide a method for manufacturing a customized cosmetic container that is not harmful to the human body while stably ensuring print quality, adhesion, and durability even when applied to a printing method using water-based ink, when customizing cosmetic containers according to consumer requirements, a customized cosmetic container manufactured according to this method, and a customized cosmetic product. means of solving the problem

[0009] The inventors have discovered that the aforementioned objective can be achieved by forming a coating layer comprising a water-soluble polymer, an acrylic copolymer, and silica on a container substrate and printing an aqueous ink on the coating layer, thereby completing the present invention.

[0010] According to one aspect of the present invention, a customized cosmetic container is provided, comprising a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on the substrate, wherein the customized cosmetic container comprises a coating layer for water-based ink printing comprising a water-soluble polymer, an acrylic copolymer, and silica on the cosmetic non-receiving portion.

[0011] According to another aspect of the present invention, a customized cosmetic is provided, comprising the aforementioned customized cosmetic container and a cosmetic composition layer on the cosmetic receiving portion.

[0012] According to another aspect of the present invention, a method for manufacturing a customized cosmetic container is provided, comprising the steps of: preparing a container comprising a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on the substrate; coating the cosmetic non-receiving portion with a composition comprising a water-soluble polymer, an acrylic copolymer, silica, and a solvent to form a coating layer for water-based ink printing; and drying the coating layer for water-based ink printing.

[0013] According to another aspect of the present invention, a method for manufacturing a customized cosmetic is provided, comprising the steps of preparing the aforementioned customized cosmetic container, providing at least one first aqueous ink on the aqueous ink printing coating layer, and providing at least one second aqueous ink on the cosmetic receiving portion. Effects of the invention

[0014] According to the present invention, the adhesion and fixation of water-based ink are improved through a coating layer formed on the surface of a substrate, thereby ensuring stable printing quality even on a substrate, particularly a plastic or metal substrate. Accordingly, smudging, peeling, or printing defects that may occur during water-based ink printing can be effectively suppressed.

[0015] Furthermore, the present invention can ensure print durability without relying on UV-curing inks or solvent-based inks, thereby reducing the possibility of exposure to ink components that may be a concern upon skin contact during the use of cosmetic containers. Accordingly, it is possible to provide a printing technology having characteristics that take skin contact into consideration.

[0016] Furthermore, according to the present invention, since a common printing technology can be applied to both the cosmetic contents and the cosmetic container, the printing process can be simplified and the system configuration streamlined during the manufacturing process of customized cosmetics. In addition, the present invention is applicable to a method of printing colors and / or patterns on the spot according to consumer selection, thereby enabling the provision of personalized cosmetic containers with stable quality and contributing to increased productivity through repetitive printing and rapid drying. Brief explanation of the drawing

[0017] FIG. 1 (a) is a drawing illustrating an example of a customized cosmetic container according to one embodiment of the present invention. FIG. 1 (b) is a cross-sectional view showing a cross-section of a customized cosmetic container cut along the dotted line in FIG. 1 (a), which is a cross-section before printing with water-based ink. FIG. 2 shows a customized cosmetic container manufactured according to an embodiment of the present invention and a customized cosmetic containing the same. Here, the customized cosmetic is an eyeshadow, and it can be seen that there are four types of eyeshadows in the central cosmetic receiving part, and colors and patterns are printed in the cosmetic non-receiving part of the outer rim according to the consumer's choice. Figure 3 is a photograph showing the results of the evaluation of printing characteristics and water resistance after printing with water-based ink in the test example, where the left side shows the state immediately after printing and the right side shows the state after contact with water. Specific details for implementing the invention

[0018] The present invention will be described in detail below.

[0019] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention; unless otherwise defined, they have the same meaning as generally understood by those skilled in the art to which the invention pertains.

[0020] Throughout the specification, when a part is described as "comprising," "containing," or "having" a component, it means that it may include additional components unless specifically defined otherwise.

[0021] As used herein, the term "customized cosmetic" means a cosmetic product prepared by mixing, adding, diluting, or combining one or more cosmetic products or cosmetic ingredients according to a user's skin condition, skin characteristics, preferences, or needs. Such preparation may be performed at the time of use or immediately before use, and includes cases where the product is adjusted to suit a specific user or prepared according to a predetermined composition.

[0022] In this specification, "color" refers to a specific type of color, and "hue" refers to a concept including variations in brightness, saturation, density, or hue.

[0023] In this specification, the term "pattern" means a pattern formed on a surface that has a decorative or visual effect and consists of lines, shapes, colors, or combinations thereof, and may include repetitive or non-repetitive arrangements.

[0025] 1. Customized cosmetic container and method of manufacturing the same

[0026] A customized cosmetic container according to the present invention will be described with reference to FIG. 1.

[0027] A customized cosmetic container according to one embodiment of the present invention comprises a substrate (110) and a cosmetic non-receiving portion (A) and a cosmetic receiving portion (B) on the substrate (110).

[0028] A coating layer (120) for printing water-based ink may be formed on the above-mentioned non-water-receiving portion (A), and a cosmetic composition layer (130) may be formed on the above-mentioned cosmetic-receiving portion (B).

[0030] Generally, paper substrates possess relatively high absorbency for water-based inks, making them an advantageous choice in terms of printability. However, due to their material properties, they are sensitive to changes in ambient humidity, which can lead to a decrease in dimensional stability during the process of absorbing or releasing moisture. Consequently, paper containers are susceptible to warping, deformation, or cosmetic defects when used or stored for extended periods, which can result in a decline in the quality of the cosmetic container. Furthermore, they may exhibit structural limitations that make it difficult to adequately protect the cosmetics filled inside from external impacts. In contrast, plastics and metals exhibit less dimensional deformation due to humidity changes and possess superior resistance to external impacts compared to paper, thereby ensuring structural stability for use as cosmetic containers.

[0031] Accordingly, the above-mentioned substrate (110) preferably comprises plastic and / or metal. More preferably, the above-mentioned substrate (110) may be a substrate made of plastic or metal.

[0032] The type of plastic is not particularly limited and can be selected considering moldability, mechanical strength, durability, and appearance quality. According to one embodiment, the substrate may include at least one selected from the group consisting of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), PC / ABS blend resin, rubber-based resin, and urethane-based resin.

[0033] The type of metal is not particularly limited and can be selected considering corrosion resistance, mechanical strength, reactivity with ink, ease of processing, etc. According to one embodiment, the substrate may include at least one selected from the group consisting of stainless steel, aluminum, copper, titanium, cast iron, and alloys thereof.

[0034] The thickness or surface condition of the above plastic or metal can be appropriately adjusted considering the formation of the coating layer for water-based ink printing or the printing quality according to the present invention, and may not be limited to a specific thickness or surface condition.

[0036] On the above-mentioned substrate (110), a non-cosmetic receiving portion (A) and a cosmetic receiving portion (B) may be formed. The location and shape of the non-cosmetic receiving portion (A) are not particularly limited, and the entire remaining portion excluding the cosmetic receiving portion (B) in which the cosmetic is received may be the non-cosmetic receiving portion (A). The location and shape of the cosmetic receiving portion (B) are not particularly limited as long as they are suitable for receiving the cosmetic, and for example, it may be formed in the center of the substrate in a shape such as a groove. Additionally, at least one cosmetic receiving portion (B) may be formed on the substrate (110), and an example of such an example is an eyeshadow palette.

[0037] A coating layer (120) for water-based ink printing may be formed on a non-water-receiving portion (A) of the cosmetic. The coating layer (120) for water-based ink printing may be formed on part or all of the non-water-receiving portion (A) of the cosmetic on the substrate (110). The location, shape, or area of ​​the coating layer may be appropriately changed according to the shape, design requirements, or printing method of the cosmetic container, and may not be limited to a specific location, shape, or area. The coating layer may be formed in any area that is easily visually perceived by the consumer during use of the cosmetic, and it is also preferable to form it in an area that is distinct from the area where the cosmetic contents are directly filled or used, so that the application of the coating layer does not affect the function or usability of the cosmetic. For example, the coating layer (120) for water-based ink printing may be formed on a non-water-receiving portion (A) of the cosmetic located on the outer surface of the substrate (110), or it may be formed on a non-water-receiving portion (A) of the cosmetic located on the edge of the outer surface of the substrate (110).

[0038] The coating layer (120) for water-based ink printing comprises a water-soluble polymer, an acrylic copolymer, and silica. Additionally, the coating layer (120) for water-based ink printing may further include inorganic fillers and other additives in addition to the above components.

[0039] The above water-soluble polymer may be a polymer that can be partially dissolved in an aqueous ink and form a coating layer upon drying. Examples of the above water-soluble polymer include hydroxyethylcellulose, carboxymethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, etc. According to one embodiment of the present invention, preferably, the above water-soluble polymer may be polyvinylpyrrolidone, polyvinyl alcohol, or a combination thereof. Based on the solid content after drying, the above water-soluble polymer may be 3 to 20 weight%, for example, 3 to 20 weight%, 3 to 15 weight%, or 5 to 12 weight% based on the total weight of the coating layer for printing with an aqueous ink. By setting the amount of the water-soluble polymer within the above range, the printability of the aqueous ink and the quality after printing can be improved.

[0040] The above acrylic copolymer is a copolymer comprising repeating units derived from one or more acrylate monomers and / or methacrylate monomers. The above acrylic copolymer may be a binder resin that provides at least one of coating layer forming ability, adhesion to a substrate, bonding strength, and water resistance. Examples of the above acrylic copolymers include styrene acrylate copolymer, styrene / acrylate / ammonium methacrylate copolymer, sodium styrene / acrylate copolymer, ammonium acrylate copolymer, ammonium VA / acrylate copolymer, sodium acrylate copolymer, ethylene / acrylic acid copolymer, ethylene / calcium acrylate copolymer, ethylene / magnesium acrylate copolymer, ethylene / sodium acrylate copolymer, ethylene / zinc acrylate copolymer, ethylene / acrylic acid / VA copolymer, steareth-10 allyl ether / acrylate copolymer, acrylate / steareth-50 acrylate copolymer, acrylate / steareth-20 methacrylate copolymer, acrylate / ammonium methacrylate copolymer, and ammonium styrene / acrylate. Examples include at least one selected from the group consisting of copolymers, acrylate / hydroxyester acrylate copolymers, methacryloylethyl betaine / acrylate copolymers, lauryl acrylate / VA copolymers, VA / butyl maleate / isobornyl acrylate copolymers, ethylene / methacrylate copolymers, vinylcaprolactam / VP / dimethylaminoethyl methacrylate copolymers, sodium acrylate / acrolein copolymers, VP / dimethylaminoethyl methacrylate copolymers, and AMP-acrylate copolymers, but is not limited thereto. The above acrylic copolymer may be 20 to 50 weight% based on the total weight of the coating layer for water-based ink printing, for example, 20 to 45 weight%, 25 to 45 weight%, 30 to 45 weight%, or 35 to 40 weight%, based on the solid content after drying.By using an acrylic copolymer in the above range, excellent coating layer formation, adhesion to the substrate, bonding strength, and water resistance can be provided.

[0041] The silica may contribute to improving the absorbency or print clarity of the water-based ink by controlling the surface characteristics of the coating layer. The silica may preferably be spherical silica. The coating layer (120) for water-based ink printing may further include an additional inorganic filler in addition to the silica. The inorganic filler may include, for example, at least one selected from the group consisting of titanium dioxide, titanium oxide, talc, mica, and calcium carbonate. The silica may be in an amount of 35 to 70 weight%, for example 40 to 70 weight%, 40 to 65 weight%, 45 to 65 weight%, 45 to 60 weight%, or 50 to 60 weight% based on the total weight of the coating layer for water-based ink printing, when combined with the inorganic filler and based on the solid content after drying. Here, the silica and the inorganic filler may be in a weight ratio of 1:0 to 1:1. By using silica and inorganic fillers in the above ranges, excellent surface characteristics of the coating layer and ink water solubility can be provided. Using only silica without including additional inorganic fillers, that is, using a weight ratio of silica to inorganic fillers of 1:0, may be more desirable in terms of surface characteristics of the coating layer and ink water solubility.

[0042] The above other additives may include antioxidants, defoaming and defoaming agents, leveling agents, lubricants, anti-curling agents, surface modifiers, wettability enhancers, etc. The additives are preferably about 0.015 to 10 weight percent based on 100 weight parts of total solids.

[0043] The above-described coating layer for water-based ink printing may be formed with a predetermined thickness considering print quality and durability. According to one embodiment, the thickness of the water-based ink printing coating layer may be 0.05 mm or more, for example, in the range of 0.05 to 2 mm, but is not limited thereto. The thickness of the coating layer may be appropriately adjusted according to coating process conditions, the viscosity of the composition for forming the coating layer, the application method, or the required printing characteristics.

[0045] According to one aspect of the present invention, a customized cosmetic container according to the present invention may be manufactured by a method for manufacturing a customized cosmetic container comprising: a step of preparing a container including a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on the substrate; a step of forming a coating layer for water-based ink printing by coating the cosmetic non-receiving portion with a composition including a water-soluble polymer, an acrylic copolymer, silica, and a solvent; and a step of drying the coating layer for water-based ink printing.

[0046] For a detailed description of the above description, the cosmetic receiving portion and cosmetic non-receiving portion, water-soluble polymer, acrylic copolymer, and silica, refer to the content previously described in relation to customized cosmetic containers.

[0047] In relation to the composition comprising the above-mentioned water-soluble polymer, acrylic copolymer, silica, and solvent, the solvent is not particularly limited and may be water, an organic solvent, or a combination thereof. The above organic solvent may be, for example, one or more selected from ethyl alcohol, n-propyl alcohol, isopropyl alcohol, butyl alcohol, ethyl lactate, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, 1,4-butanediol, 1,2,4-butanetriol, 1,5-pentanediol, 1,6-hexanediol, 1,2-hexanediol, 1,2,6-hexanetriol, hexylene glycol, glycerol, glycerol ethoxylate, trimethylolpropane ethoxylate, sodium 2-pyrrolidone-5-carboxylate, methylpyrrolidone, caprylylpyrrolidone, ethriol, diethylene glycol methyl ether, diethylene glycol ethyl ether, dimethyl sulfoxide, tetramethylenesulfone, thioglycol, and polyethylene glycol; specifically, It may be one or more selected from diethylene glycol, glycerol, polyethylene glycol, propylene glycol, and butylene glycol.

[0048] In the step of forming a coating layer for water-based ink printing by coating the above-mentioned cosmetic non-aqueous portion with a composition, the coating method may be selected from, for example, silk screen coating, inkjet coating, spray coating, dip coating, doctor blade coating, slot die coating, roll coating, etc., but is not limited thereto. According to one embodiment of the present invention, the coating may be performed by silk screen coating.

[0049] The step of drying the above-described coating layer for water-based ink printing is performed to solidify the coating layer by removing the solvent. The drying method may be performed, for example, by room temperature drying, hot air drying, oven drying, vacuum drying, infrared drying, UV curing, or a combination thereof, but is not limited thereto. According to one embodiment of the present invention, the drying may be performed by heat drying in an oven.

[0051] A customized cosmetic container having a coating layer for water-based ink printing formed by the above drying process can be provided for manufacturing customized cosmetics itself. When a user selects a desired design, specifically a color, shade, pattern, or a combination thereof, a customized cosmetic container having the desired design can be provided by printing water-based ink onto the coating layer for water-based ink printing. Here, the printing of water-based ink on the coating layer can be performed simultaneously with or separately from the printing of water-based ink on the cosmetic receiving portion described later. Preferably, the two printing steps can be performed simultaneously, thereby enabling the efficient manufacturing of customized cosmetics. The printing can be performed by an inkjet printing method or an equivalent non-contact printing method, and preferably, it can be performed by an inkjet printing method.

[0052] The aqueous ink printed on the above-mentioned coating layer for printing aqueous ink may be used without particular restriction as long as it is an aqueous ink commonly used in cosmetics. The above-mentioned aqueous ink may be, for example, an aqueous ink composition comprising a colorant and a solvent.

[0053] The above-mentioned coloring agent may specifically be at least one selected from coloring pigments and coloring dyes. The above-mentioned coloring agent may be, for example, D&C Yellow No. 5, D&C Red No. 28, FD&C Blue No. 1, D&C Black No. 2, etc., but is not limited thereto, and any coloring agent that can be used in cosmetics may be used without particular restriction. The above-mentioned coloring agent may be included in an amount of 0.5 to 7 weight%, specifically 0.5 to 6 weight% or 1 to 5 weight%, based on the total weight of the aqueous ink composition. If the coloring agent is less than 0.5 weight%, the desired color may not appear, and if it exceeds 7 weight%, the coloring agent may be included in a relatively excessive amount, making it difficult to spray.

[0054] The above solvent is not particularly limited as long as it is suitable for use in cosmetics and evaporates during ink spraying and drying. For example, the solvent may be water (e.g., purified water) and / or alcohols (e.g., ethanol, isopropanol, etc.). The amount of solvent is not particularly limited and can be appropriately adjusted by a person skilled in the art, taking into account the absence of nozzle clogging during spraying or printing and the dispersibility and penetration of the ink. Preferably, the amount of solvent can be adjusted so that the surface tension of the aqueous ink composition is about 45 mN / m or less, making the aqueous ink composition suitable for inkjet printing.

[0055] The above aqueous ink composition may include additional components in addition to a colorant and a solvent. In particular, since the above aqueous ink composition may be the same as that used in cosmetic containers, it may include conventional components used in cosmetics as the additional components. According to one embodiment, the above aqueous ink composition may further include, for example, a humectant, a preservative, a viscosity modifier, a dispersant, a stabilizer, a surfactant, a pH adjuster, or other functional additives as additional components.

[0057] 2. Customized cosmetics and methods for manufacturing the same

[0058] According to one embodiment of the present invention, a customized cosmetic is provided, comprising a substrate (110), a cosmetic non-receiving portion (A) and a cosmetic receiving portion (B) on the substrate (110), a coating layer (120) for printing water-based ink on the cosmetic non-receiving portion (A), and a cosmetic composition layer (130) on the cosmetic receiving portion (B).

[0059] For a detailed description of the substrate, the cosmetic non-receptor area, the cosmetic receptor area, and the coating layer for water-based ink printing, refer to the previously described information regarding customized cosmetic containers.

[0060] The above cosmetic composition layer is a layer in which a cosmetic is present or a cosmetic base intended to become a cosmetic by printing with water-based ink is present. The coating layer for water-based ink printing on the non-water-receptor portion of the cosmetic requires high adhesion and water resistance so that it is not easily erased or damaged by external friction, hand contact, or moisture, and it is desirable for the water-based ink to be strongly bonded and fixed. On the other hand, the cosmetic composition layer on the water-receptor portion of the cosmetic must be applied to the skin or by means such as a brush or puff when applying makeup, and thus has physical properties different from those of the coating layer for water-based ink printing. According to one embodiment, the above cosmetic composition layer may include a resin layer for attaching the cosmetic to a substrate and a cosmetic base layer on the resin layer, or it may include a cosmetic base layer without the resin layer. For example, in the case of powder-type color cosmetics such as eyeshadow or blush, the cosmetic base of the above cosmetic base layer may be powder. The cosmetic can become a cosmetic by printing water-based ink on the above cosmetic base.

[0062] According to one aspect of the present invention, a customized cosmetic according to the present invention may be manufactured by a method for manufacturing a customized cosmetic comprising: a substrate, and a cosmetic non-receiving portion and a cosmetic receiving portion on the substrate, and a coating layer for printing an aqueous ink on the cosmetic non-receiving portion; a step of providing at least one type of first aqueous ink on the coating layer for printing an aqueous ink; and a step of providing at least one type of second aqueous ink on the cosmetic receiving portion.

[0063] The first aqueous ink and the second aqueous ink may be used without particular limitation as long as they are aqueous inks commonly used in cosmetics. The first aqueous ink may be, for example, a first aqueous ink composition comprising a colorant and a solvent. Additionally, the second aqueous ink may be, for example, a second aqueous ink composition comprising a colorant and a solvent. According to one embodiment, the first aqueous ink composition and the second aqueous ink composition may each independently contain a colorant, a humectant, a preservative, and a solvent. For a detailed description of the colorant and solvent, refer to the content described above in relation to customized cosmetic containers. According to one embodiment, the humectant may be at least one selected from glycerin, glycols, and diols, and may be, for example, at least one of glycerin, PEG-400, propylene glycol, and 1,3-butylene glycol. According to one embodiment, the humectant may be included in an amount of 3 to 20 weight% based on the total weight of the aqueous ink composition, specifically 4 to 18 weight%, 5 to 17 weight%, or 6 to 16 weight%. By setting the amount of humectant to the above range, not only can the problem of nozzle clogging due to nozzle drying be resolved, but spraying or printing can also be facilitated and the feel of the cosmetic product can be improved. Any preservative commonly used in cosmetics may be used, and examples of the preservative include phenoxyethanol, hexanediol, pentylene glycol, hydroxyacetophenone, ethylhexylglycerin, chlorophenesin, chlorhexidine digluconate, sodium hydroacetate, imidazolidinyl urea, triclosan, methylparaben, propylparaben, butylparaben, ethylparaben, isobutylparaben, triclocarban, etc. The content of the above preservative can be appropriately adjusted by a person skilled in the art according to the characteristics of the selected preservative and the characteristics of the cosmetic, for example, 0.1 to 7 weight%, specifically 1 to 5 weight%, based on the total weight of the ink composition.

[0064] The steps of providing the first aqueous ink and providing the second aqueous ink may include a step of forming a design entered by a user, specifically a color, shade, pattern, or a combination thereof. The two steps may be performed simultaneously or individually. For example, when a user enters a design for a container and / or a cosmetic product, the first aqueous ink is printed on the coating layer for printing the aqueous ink, and simultaneously, prior to, or subsequently, the second aqueous ink is printed on the cosmetic receiving portion, specifically the cosmetic composition layer, thereby manufacturing a customized cosmetic product.

[0065] The above printing may be performed by an inkjet printing method or a non-contact printing method equivalent thereto, and preferably, may be performed by an inkjet printing method. For example, a customized cosmetic manufacturing device implemented including an inkjet printer is provided, and when a user inputs a desired design through an input means, for example, a touch panel connected to a computer, the customized cosmetic manufacturing device can manufacture a customized cosmetic by inkjet printing water-based ink.

[0067] According to one embodiment, the customized cosmetic may be a color cosmetic.

[0068] According to one embodiment, the customized cosmetic product may be selected from the group consisting of eyeshadow, eyebrow, foundation, powder, blush, highlighter, shading, lipstick, lip balm, lip gloss, and lip tint.

[0069] According to one embodiment, the customized cosmetic may be a powder formulation, specifically a compressed powder formulation. Examples of the customized cosmetic include eyeshadow, powder eyebrow, powder foundation, powder (e.g., pressed powder, loose powder), blush, highlighter, and shading.

[0070] The above customized cosmetic may be composed of a single color, but it may also be a palette-type cosmetic divided into multiple sections with different colors in each section.

[0072] 3. Examples

[0073] Hereinafter, the present invention will be described in more detail with reference to examples to aid in understanding the invention. However, the following examples are provided merely to facilitate a better understanding of the invention, and the content of the invention is not limited by the following examples.

[0075] (1) Examples 1 to 4 and Comparative Examples 1 to 4

[0076] A composition for a coating layer was prepared by mixing each component to obtain the composition as described in Table 1 below and stirring to ensure uniform dispersion of each component. Here, the water-soluble polymers PVP (polyvinylpyrrolidone) K90 and PVA (polyvinyl alcohol) 217 ​​were each prepared in the form of solutions with a solid content of 10 wt%, and acrylic copolymer A was prepared in the form of a solution with a solid content of 50 wt%. Subsequently, the coating layer composition was applied to an area on a plastic substrate requiring printing using a silk screen printing method to form a coating layer. The applied coating layer was heat-dried at approximately 80°C for 10 minutes to remove the solvent and form a coating layer based on solid content.

[0078] division Water-soluble polymer resin minerals menstruum note Examples 1 PVP K90 10% + PVA 217 10% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% Silica 15% EtOH 45% Water-soluble polymer mixture Examples 2 PVP K90 20% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% Silica 15% EtOH 45% Water-soluble polymer alone (PVP) Examples 3 PVA 217 20% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% Silica 15% EtOH 45% Water-soluble polymer alone (PVA) Examples 4 PVP K90 10% + PVA 217 10% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% Silica 7.5% + TiO₂ 7.5% EtOH 45% Change in mineral composition Comparative example 1 PVP K90 10% + PVA 217 10% ― Silica 15% EtOH 45% Resin not included Comparative example 2 PVP K90 10% + PVA 217 10% Polyurethane 20% Silica 15% EtOH 45% Change resin type Comparative example 3 PVP K90 10% + PVA 217 10% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% TiO₂ 15% EtOH 45% Mineral change Comparative example 4 PVP K90 10% + PVA 217 10% Acrylic copolymer A (methacryloylethyl betaine / acrylate copolymer) 20% Plate-shaped inorganic powder (complex inorganic containing magnesium / potassium / silicon / fluoride / hydroxyl / oxide, isopropyl titanium triisostearate and myristic acid) 15% EtOH 45% Mineral change

[0080] The composition in Table 1 above is based on the input before the coating process. Based on the solid content formed by removing the solvent through the drying process, the composition converted to a 100% solid content standard is as shown in Table 1 below.

[0082] Solid composition after drying of Examples 1 to 4 and Comparative Examples 2 to 4 (based on 100% solid content) Components Solid content based on weight (weight%) Water-soluble polymer 7.4 resin 37.0 minerals 55.6 total 100.0

[0084] (2) Test example

[0085] Printing was performed using an inkjet printing method on a plastic substrate having a coating layer formed in the above Examples 1 to 4 and Comparative Examples 1 to 4, using an aqueous ink. Here, the aqueous ink used was the one used in the applicant's Korean Registered Patent No. 10-2808080. Evaluation was performed according to the following evaluation method and evaluation criteria.

[0086] a. Evaluation Method 1: Film Uniformity

[0087] The surface of the plastic substrate on which the above coating layer was formed was visually observed, and the film uniformity was evaluated based on the coating uniformity and surface condition.

[0088] b. Evaluation Method 2: Print Characteristics

[0089] Test characters were printed on a plastic substrate with the above-mentioned coating layer using an inkjet printing method with water-based ink, and the printing characteristics of the water-based ink on the film were evaluated based on the clarity of the printed pattern, the presence of bleeding at the boundaries, and the state of ink adhesion.

[0090] c. Evaluation Method 3: Water Resistance

[0091] Water resistance was evaluated by observing whether the film was damaged, whether the printed pattern smudged, peeled off, or whether there was a change in color after 30 seconds of contacting water on the surface of the film printed with water-based ink.

[0092] d. metewand

[0093] ◎ (Excellent): When the outline of the printed pattern is very sharp, no smudging or blurring at the boundaries is observed, and peeling, smudging, or fading of the printing ink occurs minimally even after the water resistance evaluation.

[0094] ○ (Excellent): The outlines of the printed pattern are generally sharp, but some fine blurring at the edges may be observed, and no significant deterioration in print quality is visually perceived even after the water resistance evaluation.

[0095] △ (Normal): Partial smudging or blurring is observed at the boundaries of the printed pattern, or ink discoloration or peeling is observed in some areas after the water resistance evaluation, but the overall pattern is recognizable.

[0096] X (Defective): Cases where the outline of the printed pattern is unclear immediately after printing or after water resistance evaluation, or where pattern recognition is difficult due to significant ink bleeding, peeling, or discoloration.

[0097] e. Evaluation results

[0098] The evaluation results based on the aforementioned evaluation methods and criteria are shown in Table 3 below.

[0100] division Film uniformity Print characteristics water resistance Example 1 ◎ ◎ ◎ Example 2 ◎ △ ◎ Example 3 ◎ △ ◎ Example 4 ◎ ○ ◎ Comparative Example 1 X X X Comparative Example 2 △ X X Comparative Example 3 ◎ X X Comparative Example 4 ○ X X

[0102] From Table 3 above, Examples 1 to 4, in which a coating layer for water-based ink printing comprising a water-soluble polymer, an acrylic copolymer, and silica according to the present invention was formed, showed consistently average to very excellent evaluation results in all areas of film uniformity, printing characteristics, and water resistance. In contrast, when an acrylic copolymer was not used (Comparative Example 1), when a resin other than an acrylic copolymer was used (Comparative Example 2), or when an inorganic material other than silica was used (Comparative Examples 3 and 4), poor characteristics were observed.

[0104] Although the present invention has been described with reference to embodiments, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0106] A: Cosmetic non-receptor area B: Cosmetic receptor area 110: Record 120: Coating layer for water-based ink printing 130: Cosmetic composition layer

Claims

Claim 1 A customized cosmetic container for manufacturing customized cosmetics, comprising a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on the substrate, wherein the cosmetic non-receiving portion comprises a coating layer for water-based ink printing comprising a water-soluble polymer, an acrylic copolymer, and silica, and wherein the customized cosmetic is manufactured by including the step of providing ink to the cosmetic receiving portion. Claim 2 A customized cosmetic container for manufacturing customized cosmetics, wherein the water-soluble polymer in claim 1 is polyvinylpyrrolidone, polyvinyl alcohol, or a combination thereof. Claim 3 In claim 1, the acrylic copolymer is a styrene acrylate copolymer, a styrene / acrylate / ammonium methacrylate copolymer, a sodium styrene / acrylate copolymer, an ammonium acrylate copolymer, an ammonium VA / acrylate copolymer, a sodium acrylate copolymer, an ethylene / acrylic acid copolymer, an ethylene / calcium acrylate copolymer, an ethylene / magnesium acrylate copolymer, an ethylene / sodium acrylate copolymer, an ethylene / zinc acrylate copolymer, an ethylene / acrylic acid / VA copolymer, a steareth-10 allyl ether / acrylate copolymer, an acrylate / steareth-50 acrylate copolymer, an acrylate / steareth-20 methacrylate copolymer, an acrylate / ammonium methacrylate copolymer, A customized cosmetic container for manufacturing customized cosmetics, comprising at least one selected from the group consisting of ammonium styrene / acrylate copolymer, acrylate / hydroxyester acrylate copolymer, methacryloylethyl betaine / acrylate copolymer, lauryl acrylate / VA copolymer, VA / butyl maleate / isobornyl acrylate copolymer, ethylene / methacrylate copolymer, vinyl caprolactam / VP / dimethylaminoethyl methacrylate copolymer, sodium acrylate / acrolein copolymer, VP / dimethylaminoethyl methacrylate copolymer, and AMP-acrylate copolymer. Claim 4 A customized cosmetic container for manufacturing customized cosmetics according to claim 1, wherein the water-soluble polymer is included in an amount of 3 to 20 weight%, the acrylic copolymer in an amount of 20 to 50 weight%, and the silica in an amount of 35 to 70 weight% based on the total weight of the coating layer for water-based ink printing. Claim 5 A customized cosmetic container for manufacturing customized cosmetics, wherein the aqueous ink printing coating layer has a thickness of 0.05 mm or more in claim 1. Claim 6 A customized cosmetic container for manufacturing customized cosmetics, wherein, in claim 1, the above-mentioned material is a material comprising plastic or metal. Claim 7 A customized cosmetic container for manufacturing customized cosmetics, wherein, in claim 1, it is intended to be used for manufacturing customized cosmetics by an inkjet printing method using water-based ink. Claim 8 A customized cosmetic container for manufacturing customized cosmetics, wherein the aqueous ink printing coating layer further comprises an inorganic filler in claim 1. Claim 9 A customized cosmetic container for manufacturing customized cosmetics, wherein, in claim 8, the inorganic filler is at least one selected from the group consisting of titanium dioxide, titanium oxide, talc, mica, and calcium carbonate. Claim 10 A customized cosmetic container for manufacturing customized cosmetics, wherein the aqueous ink printing coating layer further comprises an additive selected from an antioxidant, an antifoaming and defoaming agent, a leveling agent, a lubricant, an anti-curling agent, a surface modifier, and a wettability enhancer. Claim 11 A customized cosmetic container for manufacturing customized cosmetics as described in any one of claims 1 to 10, and a customized cosmetic comprising a cosmetic composition layer on the cosmetic receiving portion. Claim 12 A method for manufacturing a customized cosmetic container for manufacturing customized cosmetics as described in any one of claims 1 to 10, comprising the steps of: preparing a container including a substrate and a cosmetic receiving portion and a cosmetic non-receiving portion on the substrate; forming a coating layer for water-based ink printing by coating the cosmetic non-receiving portion with a composition including a water-soluble polymer, an acrylic copolymer, silica, and a solvent; and drying the coating layer for water-based ink printing. Claim 13 A method for manufacturing customized cosmetics, comprising the steps of: preparing a customized cosmetic container for manufacturing customized cosmetics as described in any one of claims 1 to 10; providing at least one type of first aqueous ink on the aqueous ink printing coating layer; and providing at least one type of second aqueous ink on the cosmetic receiving portion. Claim 14 A method for manufacturing customized cosmetics according to claim 13, wherein the step of providing the first aqueous ink and the step of providing the second aqueous ink include the step of forming a color, shade, pattern, or combination thereof entered by a user. Claim 15 A method for manufacturing customized cosmetics according to claim 13, wherein the step of providing the first aqueous ink and the step of providing the second aqueous ink are performed by inkjet printing.

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