Coating apparatus for cosmetics

Abstract

In order to achieve the above-described objective, disclosed is a coating apparatus for cosmetics, according to various embodiments of the present invention. The coating apparatus for cosmetics may comprise: a composition supply unit which applies a flowable composition onto one surface of a support; a curing treatment unit which receives, from the composition supply unit, the support on which the composition has been applied and performs a curing operation on the support on which the composition has been applied; and a sheet forming unit which manufactures a sheet using the support having the composition cured on one surface thereof, after the sheet has passed through the curing treatment unit.

Description

Cosmetic coating device

[0001] The present invention relates to a coating device for manufacturing a cleansing sheet, and more specifically, to a cosmetic coating device capable of controlling temperature and wavelength, which can efficiently and consistently mass-produce cleansing sheets in a roll form by applying a liquid composition to a release paper at a certain thickness and hardening it through light and temperature control so that it adheres well to the release paper.

[0002]

[0003] Cleansing sheets have become an indispensable item in modern life, playing a crucial role in keeping the skin clean and effectively removing both everyday and professional makeup. Due to the disposable nature of these cleansing sheets, convenience and effectiveness are crucial evaluation criteria. The quality and performance of products that meet these two criteria are directly linked to consumer satisfaction. To achieve this, the manufacturing process typically involves applying a liquid composition to a release paper and drying it to form a cleansing sheet. This process constitutes a fundamental manufacturing step and directly impacts the efficacy and usability of the final product.

[0004] However, existing manufacturing technologies have revealed several limitations. In particular, ensuring thickness uniformity during the application of the liquid composition has emerged as a significant challenge, and uneven application has been identified as a major cause of product performance degradation. Furthermore, the precise temperature and time control required during the curing process has proven difficult to achieve with existing equipment and technologies. Consequently, the composition fails to cure at the appropriate speed and conditions, making it difficult to maintain consistent product quality.

[0005] Furthermore, inefficiencies in the drying and curing processes of the composition not only led to reduced productivity, but also resulted in poor adhesion of the composition to the release paper. This was a major cause of product quality deterioration during storage and performance degradation during use, and raised consumer concerns about product stability and reliability.

[0006] (Prior art literature)

[0007] (Patent Document)

[0008] Republic of Korea Patent No. 10-2168668

[0009]

[0010] The problem to be solved by the present invention is to solve the above-described problem, and to provide a cleansing sheet manufacturing device for improving the quality and production efficiency of cleansing sheets.

[0011] The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0012]

[0013] A cosmetic coating device according to various embodiments of the present invention for solving the above-described problems is disclosed. The cosmetic coating device may include a composition supply unit for applying a fluid composition to one surface of a support, a hardening unit for hardening the support to which the composition has been applied from the composition supply unit, and a sheet forming unit for forming a sheet using the support to which the composition has been applied.

[0014] In an alternative embodiment, the coating device further includes a support supply unit on which a roll-shaped support roll is mounted, and a control unit that controls the operation of the composition supply unit, the hardening treatment unit, and the sheet forming unit, and the support unwound from the support roll may be characterized in that it passes through the composition supply unit and the hardening treatment unit in sequence and is wound up in the sheet forming unit.

[0015] In an alternative embodiment, the composition supply unit may include a roller unit including two rollers arranged to form a predetermined or greater distance apart, a position adjusting unit for changing the distance between the two rollers by adjusting the position of one of the two rollers, a support unit for guiding the input of the composition in the direction of the roller unit, and an initial curing module for performing an initial hardening treatment on the applied composition when the composition is applied to one surface of the support.

[0016] In an alternative embodiment, the coating device further includes an input unit for obtaining composition characteristic information corresponding to the composition, and the control unit may be characterized in that it controls the driving of at least one of the support supply unit and the sheet forming unit so that the support roll or the sheet is unwound or wound based on the composition characteristic information.

[0017] In an alternative embodiment, the control unit may be characterized in that it controls the operation of the position adjustment unit based on the composition characteristic information to adjust the gap between the two rollers.

[0018] In an alternative embodiment, the initial curing module is provided in an upper direction of the support, performs an initial curing treatment on a composition applied to the support, and includes a plurality of light sources supplying light of different wavelengths, wherein each of the adjacent light sources is arranged to supply light of different wavelengths.

[0019] In an alternative embodiment, the hardening treatment unit may include a housing forming an internal space, an inlet formed on one side of the housing, an outlet formed on each of the other sides corresponding to the one side, a support surface provided in the internal space and supporting a support body introduced through the inlet from a lower side, a light irradiation module provided in an upper direction of the support surface, and a temperature control unit for changing the temperature of the internal space.

[0020] In an alternative embodiment, the internal space is characterized by being divided into a plurality of zones to perform control of different temperature ranges, and may include a first zone adjusted to a temperature range of 25°C to 100°C, a second zone adjusted to a temperature range of 50°C to 130°C, and a third zone adjusted to a temperature range of 50°C to 110°C.

[0021] In an alternative embodiment, the hardening treatment unit may further include a sensor unit that senses environmental information of the internal space and a heating unit that is provided on the inside of the support surface and supplies heat.

[0022] In an alternative embodiment, the hardening treatment unit includes a separation membrane that divides the internal space into the plurality of regions, the separation membrane being characterized in that it is provided to change the size of a movement path between adjacent regions, and the control unit can control the operation of the separation membrane based on environmental information of each of the plurality of regions.

[0023] Other specific details of the present invention are included in the detailed description and drawings.

[0024]

[0025] According to various embodiments of the present invention, a novel cleansing sheet manufacturing device can be provided that enables uniform application of a liquid composition, precise control of drying and hardening processes, and maintenance of high quality and performance of the final product.

[0026] This will maximize the efficiency of the cleansing sheet manufacturing process and improve consumer satisfaction.

[0027] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

[0028]

[0029] Various aspects are now described with reference to the drawings, wherein like reference numerals are used to refer to similar components generally. In the following examples, for purposes of explanation, numerous specific details are set forth to provide a comprehensive understanding of one or more aspects. However, it will be apparent that such aspects may be practiced without these specific details.

[0030] FIG. 1 illustrates an exemplary flowchart of a coating method for cosmetics according to one embodiment of the present invention.

[0031] Figure 2 illustrates an overall schematic diagram of a cosmetic coating device related to one embodiment of the present invention.

[0032] FIG. 3 illustrates an exemplary block diagram of a coating device for cosmetics according to one embodiment of the present invention.

[0033] FIG. 4 is an exemplary view from one side of a cosmetic coating device related to one embodiment of the present invention.

[0034] FIG. 5 is an exemplary view of a support supply unit according to one embodiment of the present invention, viewed from one side.

[0035] Figure 6 is an exemplary side view of a composition supply unit related to one embodiment of the present invention.

[0036] FIG. 7 is an exemplary view of the composition supply unit viewed from various directions related to one embodiment of the present invention.

[0037] Fig. 8 is an exemplary drawing showing the appearance of a hardening treatment unit related to one embodiment of the present invention.

[0038] Fig. 9 is an exemplary drawing showing the inside of a hardening treatment unit related to one embodiment of the present invention.

[0039] Fig. 10 is an exemplary view of a hardening treatment unit according to one embodiment of the present invention, viewed from the rear.

[0040] Fig. 11 is an exemplary view of a roll forming part according to one embodiment of the present invention, viewed from one side.

[0041] Fig. 12 is an exemplary view of an embossing portion viewed from one side according to one embodiment of the present invention.

[0042] FIG. 13 and FIG. 14 are exemplary drawings for explaining a bubble removal unit related to one embodiment of the present invention.

[0043] Figure 15 shows the results according to temperature conditions.

[0044]

[0045] Various embodiments and / or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it will be apparent to one skilled in the art that the aspect(s) may be practiced without these specific details. The following description and the accompanying drawings detail specific exemplary aspects of one or more aspects. However, these aspects are exemplary, and any of the various methods within the principles of the various aspects may be utilized, and the description is intended to encompass all such aspects and their equivalents. Specifically, the terms "embodiment," "example," "aspect," and "example" as used herein are not intended to imply that any aspect or design described therein is preferred or advantageous over other aspects or designs.

[0046] Hereinafter, regardless of the drawing numbers, identical or similar components are assigned the same reference numerals, and redundant descriptions thereof are omitted. Furthermore, when describing the embodiments disclosed in this specification, if a detailed description of a related known technology is judged to obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. Furthermore, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited by the attached drawings.

[0047] Although the terms "first," "second," etc. are used to describe various elements or components, these elements or components are not limited by these terms. These terms are merely used to distinguish one element or component from another. Accordingly, it should be understood that a "first element or component" referred to below may also be a "second element or component" within the technical scope of the present invention.

[0048] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0049] Furthermore, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified or clear from context, "X employs A or B" is intended to mean either of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, "X employs A or B" can apply to any of these cases. Furthermore, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the associated items listed.

[0050] Additionally, it should be understood that the terms "comprises" and / or "comprising" imply the presence of a given feature and / or component, but do not preclude the presence or addition of one or more other features, components, and / or groups thereof. Furthermore, unless otherwise specified or clear from context to refer to the singular form, the singular form in the specification and claims should generally be construed to mean "one or more."

[0051] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0052] The suffixes “module” and “part” used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0053] When an element or layer is referred to as being "on" or "on" another element or layer, this includes not only directly on the other element or layer, but also whether or not there are other intervening elements or layers. Conversely, when an element is referred to as being "directly on" or "directly on" the other element or layer, this means that there are no intervening elements or layers.

[0054] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to easily describe the relationship between one component or another as depicted in the drawings. Spatially relative terms should be understood to include different orientations of the component during use or operation in addition to the orientation depicted in the drawings.

[0055] For example, if a component depicted in a drawing is flipped, a component described as "below" or "beneath" another component may be positioned "above" the other component. Thus, the exemplary term "below" may encompass both the above and below orientations. Components may also be oriented in other directions, and thus spatially relative terms may be interpreted based on their orientation.

[0056] The purposes and effects of the present invention, as well as the technical configurations for achieving them, will become clearer with reference to the embodiments described in detail below, along with the accompanying drawings. In describing the present invention, detailed descriptions of known functions or configurations will be omitted if they are deemed to unnecessarily obscure the gist of the invention. Furthermore, the terms described below are defined based on their functions in the present invention and may vary depending on the intentions or practices of the user or operator.

[0057] However, the present invention is not limited to the embodiments disclosed below and can be implemented in various other forms. These embodiments are provided solely to ensure the completeness of the present invention and to fully inform those skilled in the art of the scope of the disclosure. The present invention is defined solely by the scope of the claims. Therefore, such definitions should be based on the contents of this specification.

[0058]

[0059] FIG. 1 illustrates an exemplary flowchart of a cosmetic coating method according to an embodiment of the present invention. FIG. 2 illustrates an overall schematic diagram of a cosmetic coating device according to an embodiment of the present invention. FIG. 3 illustrates an exemplary block diagram of a cosmetic coating device according to an embodiment of the present invention. FIG. 4 is an exemplary side view of a cosmetic coating device according to an embodiment of the present invention. FIG. 5 is an exemplary side view of a support supply unit according to an embodiment of the present invention. FIG. 6 is an exemplary side view of a composition supply unit according to an embodiment of the present invention. FIG. 7 is an exemplary side view of a composition supply unit according to an embodiment of the present invention. FIG. 8 is an exemplary view showing the exterior of a hardening treatment unit according to an embodiment of the present invention. FIG. 9 is an exemplary view showing the inside of a hardening treatment unit according to an embodiment of the present invention. FIG. 10 is an exemplary view showing the rear side of a hardening treatment unit according to an embodiment of the present invention. Fig. 11 is an exemplary diagram illustrating a roll forming unit according to one embodiment of the present invention, viewed from one side. Figs. 13 and 14 are exemplary diagrams illustrating a bubble removal unit according to one embodiment of the present invention. Fig. 15 illustrates results according to temperature conditions.

[0060] According to one embodiment, the present invention relates to a cosmetic coating device for manufacturing a cleansing sheet, characterized in that it efficiently and consistently mass-produces a cleansing sheet in a roll form with quality by applying a liquid composition to a support with a certain thickness and appropriately hardening it through light and temperature control so that it adheres well to the support.

[0061] In the present invention, the composition may refer to a liquid cosmetic raw material containing active ingredients that provide the primary functionality of the cleansing sheet. This may include moisturizers, cleansing agents, antibacterial agents, fragrances, preservatives, or various natural extracts for skin soothing and improvement. The composition provides direct benefits to the user's skin and determines the primary function of the cleansing sheet product.

[0062] In an embodiment, the support may refer to a base medium for applying the composition, such as a release liner. The release liner may refer to a thin sheet-shaped material with a non-adhesive surface that allows the user to easily remove and use the composition after it has been applied and cured. The release liner supports the composition during the application and curing process, and serves to facilitate the final product's removal when applied to the user's skin.

[0063] Release sheets are typically made of various synthetic plastic materials, such as polyethylene, polypropylene, and polyester. These materials have low adhesion to the composition, excellent chemical stability with the cosmetic composition, and are also economically mass-producible. Release sheets also play a crucial role: helping the user evenly distribute the composition while applying the cleansing sheet to the skin, and facilitating easy disposal of the product after use.

[0064] Furthermore, in the embodiment, the support may include, but is not limited to, a film, biomass, etc., and may be composed of various materials. For example, the film may be configured to control adhesive properties with the composition, impart transparency, and provide specific physical strength. Biomass may be utilized as a biodegradable material and may have environmentally friendly properties. In addition, various modifications are possible, such as natural fibers, non-woven fabrics, hydrophilic or hydrophobic coated substrates, and porous substrates, which may be appropriately selected depending on the characteristics of the composition, intended use, and application method. These support components may be configured to maintain stability during the application and curing processes of the composition, while ultimately providing a user-friendly product. Fig. 1 illustrates an exemplary flowchart of a cosmetic coating method according to one embodiment of the present invention. The order of the steps illustrated in Fig. 1 may be changed as necessary, and at least one step may be omitted or added. The steps illustrated in Fig. 1 are merely one embodiment of the present invention, and the scope of the present invention is not limited thereto.

[0065] The cosmetic coating method of the present invention may include a step (S100) of applying a composition in a fluid state to one surface of a support.

[0066] In an embodiment, the step of applying the composition may be characterized by applying the composition to one surface of the support with a uniform thickness using a gap between two or more rollers, and irradiating the applied composition with light of various wavelengths for initial hardening treatment using an initial hardening module.

[0067] Specifically, in the step of applying the composition, two or more rollers can be set according to the properties of the composition and the required coating thickness to uniformly apply the composition to one surface of the support. In this case, the spacing between the rollers can be adjusted according to the viscosity of the composition and the required coating thickness, thereby enabling the composition to be uniformly applied to a consistent thickness on the support. The application method utilizing rollers enables precise coating and has the advantage of minimizing air bubbles and uneven application that may occur during the application process.

[0068] Additionally, for initial curing of the applied composition, an initial curing module can be used to irradiate light of various wavelengths. The light irradiation process can cause a chemical reaction to occur as the photoinitiator or curing agent within the composition absorbs light.

[0069] More specifically, the initial curing module (240) includes multiple light sources capable of emitting light of various wavelengths, thereby optimizing the curing process of the composition and stably hardening the composition within a short period of time. Light irradiation through the initial curing module (240) enables rapid initial setting of the composition and lays the foundation for additional hardening treatment in subsequent processes.

[0070] In the embodiment, the initial curing module (240) is adjustable depending on the type of composition and the required degree of hardening, and provides user-adjustable settings, thereby providing versatility suitable for manufacturing various types of cleansing sheets. In addition, the initial curing module may have a structure capable of adjusting the distance between light sources and the light irradiation angle to ensure uniform hardening of the composition.

[0071] The initial curing module (240) may be provided with a plurality of light sources that irradiate light of different wavelengths, and each of the adjacent light sources may be arranged to have a different wavelength band to promote uniform curing of the composition. This arrangement may be a method in which a light source of short wavelength is used for rapid curing and a light source of long wavelength is used for curing the composition in deeper layers. This is to ensure uniformity of curing, such as by controlling the amount of energy received by each layer so that the entire composition is cured uniformly.

[0072] In this way, light sources of various wavelengths enable the multilayer structure of the composition to be uniformly cured, and light of different wavelengths can optimize the overall curing process by reacting more effectively to specific chemical groups or materials within the composition. By combining multiple light sources, the initial curing module (240) can cure the composition in a customized manner according to the chemical properties and curing requirements of a specific composition. This can increase the efficiency of the manufacturing process and provide the effect of improving the performance and quality of the final product. Through this process, the applied composition achieves a certain degree of curing in the initial stage and then undergoes an additional curing process.

[0073] According to a specific embodiment, the step of applying the composition may be characterized in that it is performed through a composition supply unit (200). The process of applying the composition using the composition supply unit (200) will be described below with reference to FIGS. 2 to 11.

[0074] The cosmetic coating method of the present invention may include a step (S200) of performing a curing treatment on a support to which the composition is applied.

[0075] In an embodiment, the step of performing a curing treatment may include a step of introducing a support having a composition applied thereto into one side of a curing treatment unit and discharging it out the other side. In one embodiment, the curing treatment unit may be characterized in that it performs curing on the composition located on one side of the support through control utilizing at least one of heat supply, hot air supply, cold air supply, and light supply.

[0076] Additionally, in an embodiment, the step of performing a curing treatment may include a step of obtaining composition characteristic information corresponding to a physical property of the composition, a step of determining a speed at which a support to which the composition is applied passes through a curing treatment section based on the composition characteristic information, and a step of performing a curing treatment on the composition based on the determined speed.

[0077] First, composition characteristic information corresponding to the composition's physical properties can be obtained. The composition characteristic information may include the composition's chemical composition, viscosity, reactivity to photocuring or thermal curing, required curing time and temperature, etc., and this information can be utilized to determine optimal processing conditions for the composition during the coating process.

[0078] Next, based on the obtained composition characteristic information, the speed at which the support coated with the composition passes through the curing unit can be determined. This speed can be adjusted to ensure that the composition is exposed to light for a sufficient period of time to fully cure. In various embodiments, the speed determination process may consider several factors, such as the curing time of the composition, the required amount of light, and the temperature conditions of the curing unit.

[0079] Finally, a curing process is performed on the composition based on the determined speed. Specifically, the support passes through a curing unit and is irradiated with light from a light irradiation module provided within, thereby finally curing the composition. Furthermore, the efficiency of the curing process can be further improved by ensuring that the temperature within the curing unit is maintained at a level appropriate for the composition's physical properties through a temperature control unit. Through this curing process, the composition can form a uniform and stable coating layer on the support.

[0080] According to various embodiments, the step of applying the composition may include the step of determining an application thickness of the composition to be applied to one surface of the support based on composition characteristic information, and the step of applying the composition to one surface of the support based on the determined application thickness.

[0081] In a specific embodiment, the composition's characteristic information can be analyzed to determine the required coating thickness. After the coating thickness is determined, a step of precisely applying the composition to one surface of a support based on the determined thickness can be performed. Subsequently, the coating process can coat the support with the composition at a uniform thickness. For example, in the case of roller coating, the distance and speed between the rollers can be adjusted to suit the properties of the composition, so that the composition can be applied to the support with the determined coating thickness. Through this process, the composition can form a coating layer having the required physical and chemical properties.

[0082] According to various embodiments, the step of performing a curing treatment may include the step of determining a speed at which a support to which the composition is applied passes through a hardening treatment section based on composition characteristic information and a determined application thickness, and the step of performing a curing treatment on the composition based on the determined speed.

[0083] Specifically, in the step of performing the curing process, the speed at which the support must pass through the curing section can be determined by first considering the composition's characteristic information and the thickness of the applied composition. The composition's characteristic information may include the composition's photocuring reaction rate, viscosity, and optical properties, and such information may be important factors in determining the amount of light required by the composition and the time required for curing. Furthermore, the thickness of the coating is also an important factor, with thicker coating layers requiring more light or longer curing times.

[0084] For example, if the composition is based on a photocurable resin that reacts rapidly to UV light, the photocuring reaction rate of the composition may be relatively fast. In this case, the speed at which the support passes through the curing zone may be determined quickly, allowing sufficient curing with only a small amount of UV light. Conversely, if a composition with high viscosity and slow photocuring reaction rate is used, the speed at which the support passes through the curing zone may need to be determined slowly, allowing the composition to receive a greater amount of light. Such a composition may require longer exposure to light, which can be used to ensure complete curing.

[0085] Additionally, the thicker the applied composition, the more light may be required to reach all parts of the composition. For example, if a 100 μm thick composition coating is twice as thick as a 50 μm thick coating, more time and light may be required for the light to penetrate the coating layer and sufficiently cure all parts of the composition. In this case, the speed at which the light passes through the curing section can be adjusted to ensure sufficient light reaches the entire coated composition.

[0086] That is, the present invention can determine the speed of passing through the hardening treatment section by considering the characteristics of the composition and the applied thickness, thereby allowing the composition to be completely hardened to form a high-quality coating layer.

[0087] This configuration allows the speed at which the support coated with the composition passes through the curing unit to be determined. Inside the curing unit, the support passes through a light irradiation module, and the curing process proceeds based on light of a wavelength provided by the light irradiation module.

[0088] According to a specific embodiment, the step of performing the hardening treatment may be characterized in that it is performed through a hardening treatment unit (300). The hardening treatment process utilizing the hardening treatment unit (300) will be described later with reference to FIGS. 2 to 11.

[0089] The cosmetic coating method of the present invention may include a step (S300) of producing a sheet using a support in which the composition has been hardened after curing. After curing, the support in which the composition has been hardened may be rolled in one direction to produce a roll-shaped cleansing sheet.

[0090] In an embodiment, a process of forming a roll-shaped cleansing sheet by rolling a support in one direction after the composition has been cured can significantly improve efficiency in the storage, transportation, and use of the product. This step is performed after the composition has fully cured, and the cured support can be uniformly rolled to form the shape of the final product.

[0091] During the roll-rolling process, the support material moves through a specially designed sheet-forming unit. This sheet-forming unit ensures that the support material is evenly wound while maintaining a constant tension, preventing excessive stretching or damage to the support material. Producing the roll-shaped cleansing sheet also offers convenience in preparing the product for packaging and shipping. Furthermore, the roll-shaped cleansing sheet allows users to cut it to the appropriate length, enhancing user convenience. This significantly enhances flexibility and productivity, contributing to meeting diverse market demands.

[0092] According to a specific embodiment, the step of creating a roll-shaped cleansing sheet may be characterized in that it is performed through a hardening treatment unit (300). The hardening treatment process utilizing the hardening treatment unit (300) will be described later with reference to FIGS. 2 to 11.

[0093] As illustrated in FIGS. 2 and 3, the cosmetic coating device (1000) of the present invention may include a support supply unit (100), a composition supply unit (200), a hardening treatment unit (300), a sheet forming unit (400), and a control unit (500). The components described above are exemplary, and the scope of the present invention is not limited to the components described above. That is, additional components may be included or some of the components described above may be omitted depending on the implementation aspect of the embodiments of the present invention.

[0094] According to one embodiment of the present invention, a cosmetic coating device (1000) unwinds a roll-shaped support provided from a support supply unit (100) and applies a fluid composition to one surface of the support while moving the support in one direction.

[0095] The composition application process is performed by the composition supply unit (200), and the composition is precisely applied to the surface of the support with a uniform thickness. The support to which the composition has been applied is then moved to the hardening unit (300), where the composition hardening process proceeds.

[0096] The curing unit (300) provides a multi-stage curing process by adjusting curing conditions such as light, moisture, or temperature to ensure that the composition adheres well to the support and acquires the required physical properties. For example, the curing unit (300) can ensure that the composition is appropriately cured through precise control of light and temperature, thereby ensuring the quality and performance of the final product.

[0097] The support material that has passed through the hardening treatment unit (300) is finally moved to the sheet forming unit (400), and the sheet forming unit (400) can form a roll-shaped cleansing sheet by winding the hardened support material in one direction. Through this process, the cosmetic coating device (1000) can efficiently mass-produce cleansing sheets of consistent quality. According to the present invention, quality variability that may occur during the manufacturing process of the cleansing sheet can be minimized, and the stability and reliability of the product can be improved.

[0098] According to an embodiment, a cosmetic coating device (1000) may include a support supply unit (100) on which a roll-shaped support roll is mounted. In an embodiment, the support roll is mounted on the support supply unit (100) of the cosmetic coating device (1000) to continuously supply the support during a coating process. During this process, the support roll is stably supported by a support fixing unit (120), and the support fixing unit (120) is supported vertically from the ground by a support plate (110). The support fixing unit (120) has a pillar shape for accommodating the support roll, and may be designed to penetrate the center of the roll so that the roll can be easily inserted and rotated. Through these structural features, the support roll can be stably unwound during the coating process, and a constant tension required to uniformly apply a composition to one surface of the support can be maintained.

[0099] Referring to FIGS. 4 and 5, the support supply unit (100) may include a support plate (110), a support fixing unit (120), and a support unit (130). The support plate (110) has a plate shape and serves to support the support fixing unit (120). For example, the support plate (110) may be provided in a direction perpendicular to the ground, that is, in the height direction, and the support fixing unit (120) may be connected in a direction perpendicular to the installation direction of the support plate (110) (e.g., a direction horizontal to the ground).

[0100] The support fixing member (120) is provided to extend from the support plate (110) and may be provided in a columnar shape into which the support roll can be inserted. For example, as illustrated in FIG. 5, the support fixing member (120) may be provided in a cylindrical shape, and the support roll is inserted into the support fixing member (120). The user can easily attach the support roll to the support fixing member, thereby allowing the support to move stably within the cosmetic coating device. When the support roll is inserted into the support fixing member, the support is unwound from the support supply member to begin the coating process.

[0101] In one embodiment, the support member (130) serves to support the support being unwound from the support roll. The support member (130) allows the support member to move stably during the coating process and is an essential part for uniform application and processing of the support member. The support member (130) can help distribute the weight of the support member when it is unwound from the support member supply member (100) and adjust the tension of the support member so that it can move at an appropriate speed and direction. Through the configuration of the support member (130), the support member can be stably moved to the composition supply member (200), the hardening treatment member (300), and the sheet forming member (400), and the overall operating efficiency of the cosmetic coating device (1000) and the quality of the product can be improved.

[0102] In an embodiment, the structure and arrangement of the support (130) may vary depending on the specific design of the cosmetic coating device (1000), and may be optimized to suit the width and weight of the support, and the degree of tension required during the coating process.

[0103] In one embodiment, the control unit (500) can coordinate and optimize the overall operation of the cosmetic coating device. The control unit (500) can precisely control various process variables, including the support release speed, the composition application amount, the composition application thickness, curing process parameters (e.g., light intensity, temperature), and the roll forming process speed. This allows for real-time adjustment of necessary conditions at each process step, ensuring process consistency and product quality.

[0104] For example, the control unit (500) can be programmed via a user interface and automatically adjust each process step based on user-set parameters. Furthermore, the control unit can continuously monitor the process status through sensors and a feedback system, and automatically adjust the process as needed to maintain optimal operating conditions.

[0105] In a further embodiment, the cosmetic coating device (1000) may include an input unit that receives various input information from a user. An interface is provided that allows the user to set various parameters related to the operation of the cosmetic coating device (1000). For example, these may include the unwinding speed of the support, the coating thickness of the composition, curing conditions (e.g., temperature, light intensity, and wavelength) in the curing unit, and the roll forming speed. In an embodiment, composition characteristic information corresponding to the composition may be obtained through the input unit. The composition characteristic information may include the chemical composition of the composition, viscosity, reactivity to photocuring or thermal curing, required curing time and temperature, and the like, and this information may be utilized to determine optimal processing conditions for the composition during the coating process. The user may input this composition characteristic information into the cosmetic coating device through the input unit, and the control unit may automatically adjust process parameters such as the unwinding speed of the support, the coating thickness of the composition, the temperature and light conditions of the curing process, and the roll forming speed based on this information.

[0106] In one embodiment, the user can fine-tune the coating process to their desired requirements through an input interface. For example, the input interface can be implemented in various forms, such as a touchscreen, buttons, dial, keyboard, or voice recognition, and can be designed to suit the user's convenience and the characteristics of the process.

[0107] In an embodiment, the input unit transmits data received from the user to the control unit, and the control unit (500) can appropriately control each component of the cosmetic coating device (1000) based on the received information to satisfy the required production conditions.

[0108] According to one embodiment, the support unwound from the support roll may be characterized in that it passes through the composition supply unit (200) and the hardening treatment unit (300) in sequence and is wound in the sheet forming unit (400). In the embodiment, at least one of the support supply unit (100) equipped with the support roll and the sheet forming unit (400) that winds the support, to which the composition has been applied and hardened, into a roll shape to produce a roll-shaped cleansing sheet may be equipped with a rotation module for winding and unwinding. In the embodiment, the rotation module may be equipped with a motor that controls the winding and unwinding speed of the support. This rotation module may be controlled by the control unit (500). For example, the control unit (500) can precisely control the winding and unwinding speed of the support by adjusting the speed of the motor based on a parameter set by a user.

[0109] According to one embodiment, the control unit (500) may be characterized by controlling the operation of at least one of the support supply unit (100) and the sheet forming unit (400) so that the support roll or cleansing sheet is unwound or wound based on the composition characteristic information. The composition characteristic information may include the chemical composition of the composition, viscosity, reactivity to photocuring or thermal curing, required curing time and temperature, etc. Specifically, the control unit (500) analyzes the composition characteristic information and adjusts the operating speed and time of the support supply unit and the sheet forming unit. For example, when the composition has a high viscosity and requires more time for curing, the control unit (500) reduces the unwinding speed of the support so that the composition can remain on the support for a sufficient time to be uniformly applied and sufficiently cured. Conversely, when the composition has a low viscosity and quickly cures, the control unit (500) increases the unwinding and winding speeds to improve production efficiency.

[0110] In addition, when the composition exhibits an optimal curing reaction at a specific temperature, the control unit (500) can control the temperature control unit (340) of the hardening treatment unit (300) so that the composition can be cured under ideal conditions. In addition, in the embodiment, when the composition has a reactivity to light of a specific wavelength, the control unit (500) can control the light source selection and irradiation intensity of the initial curing module (240) and the light irradiation module (330) so as to promote uniform curing of the composition.

[0111] In the embodiment, the support supplied from the support supply unit (100) is supported by the support unit (130), and then moves to the composition supply unit (200) to undergo a process in which a fluid composition is applied to one surface of the support.

[0112] Referring to FIGS. 6 and 7, the composition supply unit (200) may include a roller unit (210) including two rollers provided to form a predetermined or greater distance apart, a position adjusting unit (212-2) for changing the distance between the two rollers by adjusting the position of one of the two rollers, a support unit (220) for guiding the input of the composition in the direction of the roller unit (210), and an initial curing module (240) for performing an initial hardening treatment on the applied composition when the composition is applied to one surface of the support. The initial curing module (240) may be provided fixedly to a stand (250). The stand (250) may be provided corresponding to one surface of the housing (300a) to mount the initial curing module (240) at one position. Here, one side of the housing (300a) on which the stand (250) is provided may be one side on which an inlet (300a-1) is formed for inserting a support that has passed through the composition supply unit (200). The configuration in which the stand (250) is provided corresponding to one side of the housing (300a) on which the inlet (300a-1) is formed helps the support to efficiently move from the composition supply unit (200) to the initial curing module (240). This arrangement can optimize the movement path of the support and ensure consistency and efficiency of the light irradiation process for the composition. In addition, this arrangement structure facilitates maintenance and replacement of the initial curing module (240), and allows easy replacement or adjustment to another light source as needed. Through this configuration, the initial curing module (240) can effectively perform an initial hardening treatment on the composition applied to the support that has passed through the composition supply unit (200). The initial curing module (240) is fixed to the stand, so that it is precisely positioned in the path of the support to which the composition is applied, thereby enabling the applied composition to receive the irradiated light. The initial curing process through the initial curing module (240) enables the composition to stably adhere to the support and maintain the composition in an appropriate state in preparation for the additional curing process in the subsequent curing treatment unit (300).

[0113] According to one embodiment, the composition supply unit (200) has a roller unit (210) for uniformly applying a composition in a fluid state to one surface of a support, and performs the function of applying the composition to one surface of the support at a constant thickness through the configuration of the roller unit (210).

[0114] The roller unit (210) included in the composition supply unit (200) comprises two rollers, a first roller (211) and a second roller (212), and the two rollers maintain a distance (210a) from each other so that the composition can be uniformly applied to one surface of the support at a certain thickness while passing through the support. At this time, the distance between the rollers acts as an important factor in determining the thickness of the composition applied, and by adjusting this distance, the thickness of the applied composition can be precisely controlled.

[0115] The first roller (211) and the second roller (212) play an essential role in applying the composition to the surface of the support. The first roller (211) provides an initial contact point for transferring the composition to the support, and the second roller (212) can perform a function of spreading the composition more evenly as it passes through the support. The two rollers enable uniform distribution of the composition and application of an appropriate thickness, and the gap between the rollers can be adjusted via the position adjustment unit (212-2).

[0116] In an embodiment, referring to (a) of FIG. 7, two rollers may be fixedly provided through a support (212-1). Specifically, the first roller (211) may be provided by being directly connected to the support (212-1), and the second roller (212) may be provided on the support (212-1) through a position adjustment member (212-2) connected to the support (212-1). That is, the second roller (212) is provided by being indirectly connected to the support (212-1) through the position adjustment member (212-2). In this case, the position adjustment member (212-2) may be driven to change the position of the second roller (212) to adjust the gap with the first roller (211).

[0117] In the embodiment, the position adjustment member (212-2) can be configured in various forms such as a screw mechanism, a hydraulic or pneumatic system, or a fully automated motor drive system. Through this, the user or the control unit (500) can precisely adjust the position of the second roller (212), and accordingly, the gap with the first roller (211) can be minutely changed. For example, when a screw mechanism is utilized, the position adjustment member (212-2) adjusts the gap between the rollers by bringing the second roller (212) closer or farther away through a rotating screw. When a hydraulic or pneumatic system is utilized, the second roller (212) is moved by adjusting pressure, and in the case of a fully automated motor drive system, precise position adjustment can be made through the rotation of an electric motor.

[0118] The positioning control unit (212-2) can provide flexibility to adjust the application thickness of the composition according to the user's requirements. This allows for rapid setting of optimal application conditions for compositions with different physical properties when using various types of supports or compositions during the production process. The precise adjustment function of the positioning control unit (212-2) plays a key role in maintaining product consistency and quality, and can contribute to improved production efficiency. In additional embodiments, the composition supply unit (200) may include replaceable rollers or application mechanisms to enable application of various types of compositions.

[0119] In one embodiment, the control unit (500) may be characterized by controlling the operation of the position adjustment unit based on the composition characteristic information to adjust the gap between the two rollers. Specifically, the control unit (500) may analyze the composition characteristic information and adjust the gap between the two rollers in accordance with the required coating thickness of the composition. For example, when the composition has a high viscosity, a thicker coating may be required, so the control unit (500) operates the position adjustment unit (212-2) to widen the gap between the two rollers so that the composition can be coated on the support with an appropriate thickness. Conversely, when using a low viscosity composition, a thinner coating is possible, so the roller gap can be reduced to adjust so that the composition can be coated thinly on the support.

[0120] Additionally, the control unit (500) can control the operation of the positioning unit (212-2) by considering information related to the curing characteristics of the composition. For example, if a specific composition requires rapid curing, the curing process can be accelerated by narrowing the gap between the rollers to allow the composition to be applied thinly. In other words, the control unit (500) can control the composition to be cured under optimal conditions by adjusting the application thickness of the composition according to the curing speed required by the composition.

[0121] As described above, the control unit (500) can ensure uniform application and effective curing of the composition by precisely adjusting the gap between the rollers in consideration of the chemical and physical properties of the composition.

[0122] That is, by adjusting the gap between the rollers through the position adjustment unit (212-2), the user can easily change the thickness of the composition applied as needed, thereby easily meeting various requirements of the product production process.

[0123] In the embodiment, the support member (220) serves to guide the composition to effectively move toward the roller member (210). To this end, the support member (220) is provided with a shape having an inclined surface. For example, the support member may provide an inclined surface to guide and optimize the flow of the composition as it moves toward the roller member, and this inclined surface helps the composition naturally flow toward the roller. This structure reduces composition waste and contributes to improving the quality of the final product by ensuring that the composition is uniformly applied to a certain portion of the support member.

[0124] The support unit (220) guides the composition in the required direction before it reaches the roller unit (210), ensuring stable supply and efficient application of the composition. The support unit (220) optimizes the movement path of the composition, supporting smooth flow to the roller unit (210), and can minimize waste of the composition that may occur during the application process.

[0125] According to one embodiment, the composition supply unit (200) may include a guide unit (230) that guides the support delivered from the support supply unit (100). Referring to FIG. 7 (b), the guide unit (230) is provided between the roller unit (210) and the support supply unit (100), and can support and guide the support delivered from the support supply unit (100) so that it can be stably introduced into the composition supply unit (200). The support delivered from the support supply unit (100) passes through the guide unit (230), is guided to the lower end of the first roller (211), and is then discharged through a predetermined gap between the first roller (211) and the second roller (212). In this process, the support is ready to have the composition applied, and the gap between the two rollers determines the exact thickness to which the composition is to be applied on the surface of the support.

[0126] In addition, the guide unit (230) aligns the support in an appropriate direction and position before entering the composition supply unit (200), thereby enabling uniform application of the composition. The design of the guide unit (230) ensures that the support is neither twisted nor wrinkled, thereby minimizing errors that may occur during the composition application process, thereby improving the efficiency of the composition application process. In other words, the guide unit optimizes the movement path of the support, increases the precision and consistency of the composition application process, and ensures the quality of the final product.

[0127] According to an embodiment, the composition supply unit (200) may be equipped with an initial curing module (240) for initial hardening treatment. Specifically, immediately after the support to which the composition has been applied passes between two rollers, the initial curing module (240) irradiates the composition with light to effectively harden the surface and interior of the composition.

[0128] In an embodiment, the initial curing module (240) is provided in the upper direction of the support, performs an initial curing treatment on a composition applied to the support, and includes a plurality of light sources that supply light of different wavelengths, and each of the adjacent light sources may be arranged to supply light of different wavelengths.

[0129] More specifically, the initial curing module (240) includes multiple light sources capable of emitting light of various wavelengths, thereby optimizing the curing process of the composition and stably hardening the composition within a short period of time. Light irradiation through the initial curing module (240) enables rapid initial setting of the composition and lays the foundation for additional hardening treatment in subsequent processes.

[0130] In the embodiment, the initial curing module (240) is adjustable depending on the type of composition and the required degree of hardening, and provides user-adjustable settings, thereby providing versatility suitable for manufacturing various types of cleansing sheets. In addition, the initial curing module may have a structure capable of adjusting the distance between light sources and the light irradiation angle to ensure uniform hardening of the composition.

[0131] The initial curing module may be configured to include a plurality of light sources (e.g., a first light source (241), a second light source (242), a third light source (243), and a fourth light source (244)), as illustrated in (c) of FIG. 7. The initial curing module (240) may include various light sources capable of irradiating light of different wavelengths to optimize the curing process of the composition.

[0132] The initial curing module (240) may be provided with a plurality of light sources that irradiate light of different wavelengths, and each of the adjacent light sources may be arranged to have a different wavelength band to promote uniform curing of the composition. This arrangement may be a method in which a light source of short wavelength is used for rapid curing and a light source of long wavelength is used for curing the composition in deeper layers. This is to ensure uniformity of curing, such as by controlling the amount of energy received by each layer so that the entire composition is cured uniformly.

[0133] For example, the first light source (241) may be configured as a UV (ultraviolet) light source and may serve to rapidly cure the surface layer of the composition. In this case, the first light source (241) is used for the rapid setting of the photocurable composition and accelerates the initial hardening process of the composition. The second light source (242) is a light source within the visible light range and is suitable for curing the middle layer of the composition, and the third light source (243) may be configured as an infrared (IR) light source and may be utilized to uniformly cure the deeper layer of the composition. Additionally, the fourth light source (244) is a light source having a UV wavelength and, together with the first light source (241), may serve to promote uniform curing across both the surface layer and the inner layer of the composition. By arranging these light sources of different wavelengths in a zigzag or other specific pattern, the irradiation range of the light is optimized and the light is uniformly distributed throughout the entire composition. This configuration can be particularly useful for photocurable compositions, given the depth to which light must reach and the amount of energy required for curing.

[0134] In this way, light sources of various wavelengths enable the multilayer structure of the composition to be uniformly cured, and light of different wavelengths can optimize the overall curing process by reacting more effectively to specific chemical groups or materials within the composition. By combining multiple light sources, the initial curing module (240) can cure the composition in a customized manner, tailored to the chemical properties and curing requirements of a specific composition. This can increase the efficiency of the manufacturing process and enhance the performance and quality of the final product.

[0135] After the composition is applied to one side of the support, the composition to which the composition has been applied is transferred to a hardening treatment unit (300). The hardening treatment unit (300) performs a hardening treatment operation on the support to which the composition has been applied from the composition supply unit (200) to harden the composition.

[0136] In one embodiment, the hardening treatment unit (300) may include a housing (300a) forming an internal space, an inlet (300a-1) formed on one side of the housing (300a), an outlet (300a-2) formed on each of the other sides corresponding to the one side, a support surface (320) provided in the internal space (300b) for supporting a support body input through the inlet from a lower side, a light irradiation module (330) provided in an upper direction of the support surface (320), and a temperature control unit (340) for changing the temperature of the internal space (300b).

[0137] Referring to FIGS. 8 to 10, a housing (300a) of a hardening treatment unit (300) safely surrounds an internal space (300b) and provides an environment for the hardening treatment process of the composition. An inlet (300a-1) is formed on one side of the housing (300a), so that a support that has passed through the initial hardening module (240) can be guided inside. One or more outlets (300a-2) are formed on the opposite side or other side, so that the hardened support can exit the hardening treatment unit (300) and move to a subsequent process.

[0138] In an embodiment, an injection guide (310) may be provided at the front end of the injection port (300a-1). The injection guide (310) serves to guide a support to which an initially cured composition has been applied toward the inside of the housing (300a). The injection guide (310) prevents the support from twisting or folding during the process of entering the hardening treatment unit (300), and may contribute to maintaining a state in which the composition is uniformly applied to the surface of the support.

[0139] According to one embodiment, the housing (300a) may be supported at a certain height from the ground via a leg portion (360), as illustrated in FIG. 4, thereby forming a space between the housing (300a) and the ground. According to one embodiment, a support supply portion (100) and a sheet forming portion (400) may be arranged in the space between the housing (300a) and the ground.

[0140] By arranging the support supply unit (100) and the sheet forming unit (400) in the space formed between the housing (300a) and the ground, the overall design of the cosmetic coating device becomes compact and the working space can be utilized efficiently. This configuration improves the accessibility of the device and simplifies the process of unwinding and winding the support. Furthermore, by utilizing the space between the housing and the ground, additional space can be secured for installing necessary mechanical components or electrical wiring, which facilitates maintenance and service work of the device.

[0141] The structure in which the housing (300a) is supported at a certain height from the ground via the legs (360) also serves to increase the stability of the device and minimize the impact of vibrations that may occur during the operation of the cosmetic coating device (1000) on the surrounding environment. This serves as an important factor in performing a precise coating process and has the advantage of contributing to ensuring the quality of the final product.

[0142] As a result, the design of arranging the support supply unit (100) and the sheet forming unit (400) in the space formed between the housing (300a) and the ground has the advantage of improving the efficiency, accessibility, and stability of the device, and facilitating the operation and maintenance of the cosmetic coating device (1000).

[0143] According to an embodiment, the inner space (300b) of the housing (300a) is provided with a support surface (320) for supporting a support, and the support passes over the support surface (320). The support surface (320) allows the support to be stably supported when passing under the light irradiation module (330), and can allow the support to maintain a constant position during the light irradiation and temperature control processes.

[0144] According to one embodiment, the hardening treatment unit (300) may include an infrared supply unit provided on one surface of the support surface (320) to supply infrared rays. In general, drying equipment can dry an object (or composition) in various ways using a heating heater, steam, hot air dryer, etc.

[0145] However, in the case of drying using heating heaters, steam, and hot air, low thermal efficiency and low drying rate are pointed out as disadvantages, and they cause various problems such as reduced productivity, external heat loss, high temperature inside the workplace, and taking up a lot of space.

[0146] In particular, in the case of a composition applied to one surface of the support of the present invention and subjected to hardening, since it is a cosmetic raw material, if rapid drying is not performed properly, uniform drying may not occur, which may cause problems in the stability or usability of the final cosmetic product.

[0147] To solve these problems, the present invention can be characterized by introducing a drying method utilizing infrared rays by providing an infrared supply unit in the hardening treatment unit (300). Infrared drying provides high thermal efficiency and a fast drying rate compared to heaters, steam, and hot air methods. In addition, the deep penetration power of infrared rays enables rapid heat transfer to the interior of the composition, thereby enabling rapid drying, which enables uniform hardening and drying. Infrared rays have a stronger thermal effect than visible light or ultraviolet rays, and the principle of the thermal effect is that when infrared rays are irradiated and resonate with the chemical bond vibration energy of the composition, absorption occurs, and the infrared rays are converted into thermal energy within the absorbed material. In this way, when the irradiated infrared rays are absorbed by the composition, infrared heating can occur, which generates heat simultaneously on the surface and interior of the material. In other words, drying utilizing infrared rays has the advantages of enabling energy transfer at the speed of light without a medium, and providing rapid, uniform, and highly efficient heating.

[0148] Infrared drying not only improves productivity by minimizing heat loss and reducing temperature rise within the workplace, but also enhances the working environment. Furthermore, infrared drying devices take up relatively little space compared to conventional drying methods (e.g., heating, steam, or hot air drying), and their flexible installation allows for easy integration into various production lines.

[0149] In a specific embodiment, the infrared supply unit of the present invention may be characterized by supplying near-infrared (NIR) light. In an embodiment, the near-infrared light may be infrared light having a wavelength of 0.75 to 3 μm. More specifically, the near-infrared light supplied by the infrared supply unit of the present invention may be infrared light having a wavelength of 0.8 to 1.5 μm.

[0150] Near-infrared rays have shorter wavelengths and higher frequencies than mid-infrared rays (e.g., infrared rays with wavelengths of 3 to 25 μm) and far-infrared rays (e.g., infrared rays with wavelengths greater than 25 μm). Therefore, they have higher heat penetration and can provide improved drying performance. Utilizing near-infrared rays can penetrate deep into the composition's body, vaporizing evaporative substances within the surface boundary, thereby drying the composition from the inside out. This ensures high drying efficiency and fast processing times.

[0151] In summary, by supplying infrared light within the internal space (300b), particularly from the lower side of the support to which the composition is applied, a drying process specialized for cosmetics can be supported. In other words, infrared light can be utilized to solidify the composition more quickly and evenly through deep thermal penetration into the composition. This has the advantage of enhancing the stability and quality of the final product while maximizing production efficiency.

[0152] In the embodiment, during the process of passing through the inner side of the hardening treatment unit (300), a support surface (320) is provided on the lower side of the support, and the support surface (320) can be heated by a heating unit (321). The hardening treatment unit (300) may further include a heating unit (321) provided on the inner side of the support surface to supply heat. The heating unit (321) can optimize the hardening process of the composition by controlling the temperature of the internal space (300b). The heating unit (321) evenly supplies the necessary heat while the support passes through the support surface (320), thereby allowing the composition to be appropriately hardened at a required temperature. The heating unit (321) may be driven using electric resistance heating, infrared heating, or other heat sources, and may maintain a specific temperature range within the hardening treatment unit (300) or gradually control the temperature as needed.

[0153] The heating function of the heating unit (321) is combined with light irradiation by the light irradiation module (330), enabling optimization of the curing process of the composition from various angles. Through these thermal and optical treatments, the composition on the support is uniformly cured, ensuring consistency and quality of the final product. The heating unit (321) also operates harmoniously with other components of the curing unit (300), facilitating rapid curing of the composition and enhancing production efficiency.

[0154] Meanwhile, the heating unit (321) can be individually controlled by region (300b). The temperature of the heating unit (321) located in the second region (300b-2) can be controlled to be the highest, and the temperature of the heating unit located in the first region (300b-1) can be controlled to be lower than the temperature of the heating unit in the second region. Finally, the temperature of the heating unit located in the third region (300b-3) can be controlled to be lower than the temperature of the heating unit in the first region. Since the second region is a section where the curing of the composition reaches its peak, the temperature of the heating unit located in the second region is controlled to be the highest, and since the third region is a section where the cured heating unit is slowly cooled, the temperature of the heating unit is controlled to be the lowest among the three regions.

[0155] In an embodiment, a light irradiation module (330) may be provided in the upper direction of the support surface (320). In this case, the light irradiation module may be provided including a plurality of light sources that irradiate light of different wavelengths, and each of the adjacent light sources may be arranged to have a different wavelength band, thereby promoting uniform curing of the composition. This arrangement may be a method in which a light source of short wavelength is used for rapid curing, and a light source of long wavelength is used for curing the composition in a deeper layer. This can ensure uniformity of curing, such as by controlling the amount of energy received by each layer, so that the entire composition is cured uniformly.

[0156] In a specific embodiment, the light irradiation module (330) may be provided with a plurality of light sources corresponding to each of a plurality of areas inside the housing, and these light sources may be designed to alternately arrange NIR (Near Infrared) lamps and QIR (Quartz Infrared) lamps. In this way, the arrangement of lamps (or light sources) of different wavelengths is intended to ensure that energy is uniformly transmitted not only to the surface but also to the interior during the curing process of the composition, thereby promoting effective curing of the entire composition.

[0157] In a specific embodiment, the light irradiation module (330) may be provided with a plurality of light sources corresponding to each of a plurality of areas inside the housing, and these light sources may be designed to alternately arrange NIR (Near Infrared) lamps and QIR (Quartz Infrared) lamps. In this way, the arrangement of lamps (or light sources) of different wavelengths is intended to ensure that energy is uniformly transmitted not only to the surface but also to the interior during the curing process of the composition, thereby promoting effective curing of the entire composition.

[0158] NIR lamps can have a wavelength of approximately 2200 to 2700 nm and are effective in curing internal parts on the surface of the composition. Furthermore, wavelengths within the above range exhibit strong moisture absorption properties, thereby enhancing the curing efficiency of the composition. QIR lamps can have a wavelength of approximately 700 to 2500 nm, and preferably emit wavelengths in the range of 900 to 1500 nm. QIR lamps serve to uniformly transmit heat to the composition.

[0159] According to an embodiment, the composition of the present invention relates to a cosmetic raw material and may include an aqueous base raw material. For example, the present invention can efficiently remove OH by inducing a chemical reaction in the aqueous base raw material using a photoirradiation module. The aqueous base may refer to a cosmetic composition containing water as a main component, and OH may refer to a hydroxyl group (-OH). The removal of OH from the aqueous base plays a significant role in improving the stability and curing speed of the composition.

[0160] The removal of hydroxyl groups in aqueous-based cosmetic compositions is accelerated by light energy provided by a light irradiation module. This allows for the optimization of the physical and chemical properties of the composition through a chemical curing process, rather than a physical drying process. The light energy reacts with the hydroxyl groups to remove them, resulting in more uniform and rapid curing of the composition. In other words, the physical and chemical properties of the composition can be optimized through a chemical curing process utilizing light energy, rather than a physical drying process using hot air and heat. The NIR and QIR lamps of the light irradiation module provide light of appropriate wavelengths to each layer of the aqueous-based composition, ensuring even curing from the surface to the interior.

[0161] For example, when curing a composition using conventional hot air drying, the surface layer can quickly harden as moisture evaporates rapidly. However, heat cannot effectively reach the interior of the thick composition, resulting in insufficient curing of the inner layer. To address this issue, the effective placement and use of NIR and QIR lamps is crucial for uniformly delivering heat to the deep layers of the composition and promoting the necessary chemical reactions, thereby ensuring uniform curing throughout.

[0162] Due to their long wavelength, NIR lamps can penetrate deeper into the composition, inducing internal curing reactions, while QIR lamps, with their shorter wavelengths, are effective for rapid surface curing. By alternating between light sources of different wavelengths, chemical reactions occur simultaneously inside and outside the composition, ensuring a uniform overall curing process.

[0163] This light source arrangement can be tailored to the characteristics of each composition—such as its chemical composition, curing speed, and required heat capacity—and appropriate spacing and arrangement between the light sources ensures efficient curing of the entire composition while maintaining optimal light coverage and intensity. This can significantly contribute to maximizing productivity while maintaining consistent product quality.

[0164] In summary, the hardening treatment unit (300) of the present invention can efficiently harden a composition by utilizing hot air, a light irradiation module, and heat supply. Specifically, the surface of the composition is hardened by hot air supplied through a temperature control unit, the middle region of the composition is hardened by the light irradiation module, and the lower region of the composition is hardened by the heating unit (321) provided in the lower direction of the support.

[0165] In this case, since the light irradiation module is equipped with light sources of different wavelengths arranged alternately, the upper part of the middle region and the lower part of the middle region can be cured more efficiently.

[0166] For example, when the composition forms a first layer, a second layer, a third layer, and a fourth layer in the height direction, the first layer may be cured by supplying hot air, the second layer may be cured by short-wavelength light (e.g., QIR light), the third layer may be cured by long-wavelength light (e.g., NIR light), and the fourth layer may be cured by a heating unit.

[0167] In this way, the hardening treatment unit (300) of the present invention provides uniform hardening across the entire composition, thereby enhancing the quality of the final product and maximizing its physical performance. By applying different hardening techniques to each layer, each area of ​​the composition is cured according to specific conditions required, which can enhance the overall durability and functionality of the product. This configuration prevents a situation where only a specific area (e.g., the surface) is cured due to the thickness of the composition, ensuring uniform hardening of the entire composition. In addition, it effectively causes a reaction across the inner layers, thereby providing uniform hardening across the entire composition.

[0168] Additionally, in this embodiment, each layer of the composition is processed using a specific curing technique, ultimately ensuring uniform curing across all layers, ensuring optimal product quality. The multilayer curing approach of the present invention may be particularly important because each layer of the composition may have different chemical and physical properties. For example, the top layer may provide environmental protection, the middle layer may provide structural strength, and the bottom layer may serve to increase product durability.

[0169] The curing unit (300) of the present invention allows for precise control of the curing process to meet the requirements of each layer, enabling the production of high-performance cosmetic products. Furthermore, this precise curing control can contribute to reducing material waste and improving production efficiency.

[0170] Consequently, the present invention enables highly customized product development by applying a curing technology appropriate for each composition layer, providing an effective solution that meets the needs of the cosmetics industry. This technological approach maximizes product performance and stability, while providing flexibility to meet diverse market demands.

[0171] By combining these light sources of various wavelengths, the light irradiation module (330) can comprehensively optimize the curing process for various depths and components of the composition. Furthermore, in one embodiment, the control unit (500) can be used to adjust the intensity and irradiation time of each light source, thereby establishing a customized curing profile based on the chemical properties and curing requirements of a specific composition. This allows for uniform curing of the entire composition, thereby improving the quality and performance of the final product.

[0172] In addition, in the embodiment, the hardening treatment unit (300) may include a temperature control unit (340) that supplies hot air or cold air, as illustrated in FIG. 7. Specifically, the temperature control unit (340) may be provided to remove excessive heat that may occur during the hardening process or to provide temperature conditions necessary to control the hardening speed of the composition. The temperature control unit (340) may optimize the hardening process of the composition by supplying hot air or cold air to the internal space of the housing (300a) through the supply pipe (341) while the support passes through the internal space. For example, hot air may be used to accelerate the hardening of the composition, and cold air may be used to prevent overheating that may occur during the hardening process and to slow down the hardening speed if necessary depending on the characteristics of the composition.

[0173] In an embodiment, the temperature control unit (340) of the present invention can support cold air drying by supplying cold air as well as hot air. In one embodiment, the composition subjected to the hardening treatment of the present invention may undergo chemical changes or deterioration due to excessive heat during hot air drying. For example, a composition containing components sensitive to high temperatures may have its structural stability damaged or its active ingredients destroyed if hot air drying is performed. In other words, cold air drying may be required depending on the components of the composition.

[0174] For example, the cold air drying method of the present invention can be more effectively applied in the manufacturing process of hydrogel masks. Hydrogel masks may contain various heat-sensitive active ingredients, and to preserve the efficacy of these ingredients, it is important to avoid excessive heat. The present invention supplies cold air through a temperature control unit during the drying process, thereby preventing the components of the hydrogel mask from being deteriorated by heat and maintaining product quality while quickly completing the drying process.

[0175] That is, the temperature control unit (340) of the present invention serves to optimize the curing process of the composition by selectively controlling the supply of hot air and cold air according to the characteristics and requirements of the composition. In particular, when the composition is sensitive to heat, the supply of cold air prevents excessive heating of the composition during the curing process and enables the curing process to be completed without deterioration or damage to the active ingredient. Through this, the stability and efficacy of the product can be maintained, and a final product with guaranteed quality can be produced. In addition, the temperature control unit also has the function of supplying hot air to accelerate the curing process, thereby greatly improving the flexibility and efficiency of the manufacturing process. Therefore, the present invention can contribute to expanding the scope of product development and improving productivity by providing an appropriate drying and curing process method tailored to the characteristics of various compositions.

[0176] Meanwhile, the temperature of the hot air can also be individually controlled for each zone (300b). The temperature of the hot air supplied to the second zone (300b-2) can be controlled to be the highest, and the temperature of the hot air supplied to the third zone (300b-3) can be controlled to be lower than that of the second zone. Finally, the temperature of the hot air supplied to the first zone (300b-1) can be controlled to be lower than that of the third zone. Since the second zone is the part where the curing of the composition reaches its peak, the temperature of the hot air supplied to the second zone is controlled to be the highest. Although the third zone is a cooling part, hot air is supplied at a higher temperature than that of the first zone, and considering that the physical properties of the composition passing through the second zone may change if the temperature drops rapidly, the temperature can be controlled to be slightly lower than that of the second zone.

[0177] In one embodiment, the temperature control unit (340) may supply cold air after the curing of the composition is completed. That is, the temperature control unit (340) may be provided to supply cold air to the composition that has been cured at the discharge end of the hardening unit (300). Here, the discharge end of the hardening unit (300) may refer to the final exit point where the cured composition exits the hardening unit.

[0178] Supplying cooling air after curing is crucial for rapidly cooling the cured composition, reducing thermal stress and improving product dimensional stability. The application of cooling air prevents deformation or thermal damage caused by excessive heat during the curing process, contributing to maintaining the quality of the final product. Furthermore, the cooling process facilitates the transition of the composition to subsequent processing or packaging, optimizing the entire production cycle.

[0179] According to an embodiment, the temperature control unit (340) is linked to a sensor unit (e.g., a temperature sensor) to enable real-time temperature monitoring of the support, thereby enabling precise control of the temperature of the space where the support and the composition are located.

[0180] Additionally, the curing treatment unit (300) may further include a ventilation unit for ventilating the air inside. The ventilation unit may be provided with an exhaust pipe (342) for exhausting air and an air intake fan. The ventilation unit can remove excessive heat and moisture that may occur during the process and maintain optimal environmental conditions necessary while the composition is curing. The exhaust pipe (342) of the ventilation unit effectively exhausts heat and moisture generated in the internal space to the outside, and the air intake fan can improve indoor air quality and introduce necessary fresh air into the inside. The ventilation unit can optimize the curing process of the composition and play a role in maintaining uniform quality of the product.

[0181] The ventilation system's configuration can control rapid temperature and humidity fluctuations that may occur during the curing process, providing a stable environment for the composition to cure evenly. This can be especially important when the composition undergoes sensitive chemical reactions or performs optimally only under specific temperature and humidity conditions.

[0182] Furthermore, ventilation systems can contribute to improving the safety of the work environment. By effectively managing excessive heat and chemical vapors, they protect the health and safety of workers and improve air quality in production spaces. This has the added benefit of increasing work efficiency and ensuring the long-term sustainability of manufacturing processes.

[0183] In addition, in the embodiment, the internal space (300b) of the hardening treatment unit (300) may be characterized by being divided into a plurality of regions to perform control of different temperature ranges.

[0184] In one embodiment, an opening / closing member (350) may be formed on the outside of the housing (300a). As illustrated in FIG. 8, the opening / closing member (350) may be formed to correspond to one surface of the housing, and may be provided to be individually opened / closed corresponding to each of a plurality of regions. The opening / closing member (350) is positioned on the outside of the housing (300a) and may be opened or closed as needed to facilitate access to the inside of the housing (300a). For example, when access to the inside of the housing (300a) is required for maintenance, filling of a composition, or cleaning of the inside of the hardening treatment unit (300), easy access to the inside of the housing (300a) may be possible through the opening / closing member (350).

[0185] In one embodiment, the opening / closing member (350) may be implemented in various forms, such as a sliding type, a hinged type, or a roll-up type, and may be implemented in a suitable manner depending on the shape of the housing (300a) and the usage environment. In addition, the opening / closing member (350) provided to be individually opened / closed in response to each area allows work to be performed targeting only a specific area, thereby enabling efficient work progress without affecting the overall process.

[0186] In one embodiment, the plurality of zones may include a first zone (300b-1) controlled from 25°C to 100°C, a second zone (300b-2) controlled from 50°C to 130°C, and a third zone (300b-3) controlled from 50°C to 110°C. Each zone may include a plurality of distinct spaces depending on the properties or size of the object to be heated.

[0187] In the first region (300b-1), the composition is initially hardened to ensure stable adhesion to the support, and the surface of the composition is gently hardened within a temperature range of 25°C to 100°C. This is intended to raise the temperature of the aqueous composition to just before boiling, to prevent burning of only the surface, to evenly supply heat, and to prevent separation between the surface and the inside. In a specific embodiment, the temperature of the first region is most preferably maintained at 40°C to 60°C.

[0188] Thereafter, in the second region (300b-2), the composition is deeply cured at a higher temperature of 50 to 130°C, thereby enhancing durability and adhesive strength. Since excessively high temperatures can cause the sheet to rebound, generating bubbles or generating heat, the second region (300b-2) prevents this from happening while ensuring sufficient curing of the composition to the interior. In a specific embodiment, the temperature of the second region is most preferably maintained at 90 to 110°C.

[0189] Finally, in the third zone (300b-3), the final curing process of the composition is performed at a temperature controlled between 50 and 110°C, thereby stabilizing the quality of the final product. The reason for gradually lowering the temperature is to further improve structural stability, and due to the nature of the water-based composition, the process proceeds to nearly 100°C. For compositions containing oil, curing is preferably performed at a temperature close to 80°C, but in other cases, it is advantageous to perform the process at a temperature close to 100°C. In other words, the third zone is preferably controlled at a temperature of 80 to 100°C.

[0190] In this way, the hardening treatment unit (300) of the present invention can provide uniform hardening of the composition through appropriate temperature control in each area, thereby improving the quality of the final product and maximizing its physical performance.

[0191]

[0192] As illustrated in Fig. 9, the first region (300b-1) to the third region (300b-3) are sequentially arranged, and as the support passes through each region in turn, the composition undergoes a gradual hardening process. This sequential arrangement efficiently manages the curing process of the composition and enables precise temperature control required at each stage, thereby ensuring consistent quality and performance of the final product.

[0193] In one embodiment, each of the plurality of regions may have a preset length. For example, each region may be 6 meters long. In this case, the support coated with the composition may move at a rate of 6 meters per minute and remain in each region for 1 minute. In other words, the support moves for a total of 3 minutes, and after 3 minutes, curing is completed and discharged. The specific numerical descriptions of the length and movement speed of each region described above are merely examples and the present invention is not limited thereto.

[0194] According to one embodiment, the hardening treatment unit (300) may include a sensor unit that senses environmental information of the internal space. The sensor unit may monitor environmental conditions within the hardening treatment unit (300), such as temperature, humidity, light intensity, and wavelength, in real time. The environmental information acquired through the sensor unit has a significant impact on the hardening process of the composition, and is therefore utilized by the control unit (500) so that the composition can be hardened under optimal conditions. For example, if the sensor unit detects that the temperature is outside the target range, the control unit (500) may adjust the temperature of the internal space by adjusting the temperature control unit (340). In another example, if the light intensity is determined to be insufficient for hardening the composition, the control unit (500) may increase the output of the light irradiation module to supply the required amount of light. The sensor unit may contribute to enhancing process efficiency and improving productivity by enabling early detection and response to problems that may occur during the process.

[0195] According to one embodiment, the hardening treatment unit (300) may include a separator that divides the internal space into the plurality of regions. The separator may be characterized by being provided to vary the size of the passage between adjacent regions. In an embodiment, each separator may form a passage through which a support coated with the composition may pass, and the support coated with the composition may be cured by sequentially moving through each region through the passage formed by each separator.

[0196] In an embodiment, the control unit (500) can control the operation of the separation membrane based on environmental information of each of the plurality of regions. Specifically, the control unit (500) can analyze environmental information collected from the sensor unit, such as temperature, humidity, and light intensity of each region, to optimize the conditions of each region. For example, if the curing conditions of the composition in a specific region are determined to be less than ideal, the control unit (500) can adjust the position of the separation membrane to adjust the size of the movement path between the region and an adjacent region. Through this, the flow of heat or moisture from the adjacent region can be controlled, or the range of light irradiation can be adjusted to optimize the curing process of the composition.

[0197] For example, if the curing of the composition is proceeding slowly in a specific area, the control unit (500) can adjust the separator to allow more heat to be transferred to that area. Conversely, if the curing is proceeding too quickly, which risks preventing the composition from properly setting, the separator can be adjusted to lower the temperature of that area or reduce the intensity of the light.

[0198] Controlling the operation of these membranes allows for more precise management of the curing process of the composition within the curing unit, which can contribute to increased process flexibility and product quality consistency.

[0199] For example, if the curing temperature of the composition in the first region does not operate within the range, the control unit (500) can adjust the separator to widen the passage between the first region and the adjacent second region so that more heat can be transferred to the first region. This causes the temperature of the first region to rise and the curing speed to increase. Conversely, if curing progresses too quickly in the third region and the composition is excessively cured, the control unit can adjust the separator to narrow or block the passage in the third region to reduce the transfer of heat and light. This lowers the temperature of the third region or reduces the intensity of the light so that the composition can be cured at an appropriate speed.

[0200] In this way, membrane drive control optimizes the curing conditions of the composition and precisely controls the environment in each area, ensuring uniform curing throughout the composition. This increases process flexibility and contributes to maintaining consistent product quality.

[0201]

[0202] *Furthermore, by controlling the flow of heat and moisture between each area through the membrane, curing problems that may arise in specific areas can be quickly resolved. For example, if high humidity in a specific area prevents the composition from curing properly, the membrane can be adjusted to allow dry air to flow into that area. Conversely, if the light intensity in a specific area is too high, causing the composition to cure too quickly, the membrane can block or reduce the transmission of light.

[0203] In this way, the hardening treatment unit (300) of the present invention can maximize the efficiency of the process and the quality of the product by precisely controlling the hardening process of the composition through the separator and the control unit (500).

[0204] In addition, according to an embodiment, the cosmetic coating device (1000) may include a sheet forming unit (400) that forms a roll-shaped cleansing sheet by winding a support in which the composition has been hardened in one direction after passing through the hardening unit (300).

[0205] The sheet forming unit (400) can effectively roll the support, in which the composition has been solidified after passing through the hardening unit, into a roll shape to form a final cleansing sheet product. The sheet forming unit (400) can be equipped with a precision rolling mechanism so as to roll the support at a constant speed with a uniform tension. The sheet forming unit (400) also has an adjustment function that can adjust the size and length of the roll according to the user's requirements, thereby enabling the production of cleansing sheet products of various sizes and lengths.

[0206] According to one embodiment, the sheet forming unit (400) may include a roll fixing unit (410) and a roll guide unit (420). The roll fixing unit (410) may serve to fix a roll. Here, the roll may refer to a cylindrical structure on which the final cleansing sheet product is wound. The roll has a hole in the center and may be fitted into the roll fixing unit (410). That is, the cylindrical roll may be fixed through the roll fixing unit (410). It is inserted into the roll fixing unit (410) through the center hole inside the roll and positioned stably.

[0207] According to an embodiment, the roll fixing unit (410) may be provided to be rotatable. Specifically, the roll fixing unit (410) may be configured to include a roller bearing, a shaft, or other rotational support structure. These components can support the roll to rotate smoothly while being stably fixed at a required position during the coating process. Meanwhile, a rotation module may be provided on one side of the roll fixing unit (410). The rotation module can apply a rotational force to rotate the roll fixing unit (410). When the roll fixing unit (410) rotates, the roll fitted to the roll fixing unit rotates, and accordingly, the support on which the composition is hardened is wound around the roll. A rotational force may be applied to the roll fixing unit (410) through the rotation module, and as the rotational speed of the roll is controlled through this, the speed at which the support passes through the cosmetic coating device (1000) (or the hardening treatment unit) can be determined. For example, increasing the rotation speed allows the support to be wound around the roll more quickly, which allows the support to pass through the curing section of the cosmetic coating device (1000) more quickly, which can shorten the curing time of the composition. Conversely, decreasing the rotation speed allows the support to be wound around the roll more slowly, which allows the composition to remain on the roll for a longer period of time before curing, which can slow down the curing process. The rotation module can be driven by the control of the controller. In an embodiment, the controller (500) can control the operation of the rotation module based on composition characteristic information. For example, when using a composition with high viscosity, the controller can lower the rotation speed to ensure that the composition is sufficiently transferred to the roll and a uniform coating is achieved. Conversely, when using a composition with low viscosity, the rotation speed can be increased to prevent excessive accumulation of the composition and accelerate the curing process.

[0208] That is, the control unit (500) can precisely control the rotation speed and time of the rotation module based on the viscosity, density, and other physical and chemical property information of the composition.

[0209] The roll guide unit (420) serves to guide the support in which the composition is hardened (i.e., the support that has passed through the hardening treatment unit) so that it is stably wound around the roll fixed to the roll fixing unit (410). The roll guide unit (420) can support the support and guide the support to move along a constant path without shaking. In an embodiment, the roll guide unit (420) may be provided in multiple pieces. For example, the roll guide unit (420) may include a first roll guide unit (421) and a second roll guide unit (422). The first roll guide unit (421) and the second roll guide unit (422) may be provided so that the support can be stably wound around the roll while maintaining a constant path during the transport process of the support. By using a plurality of roll guide units, shaking or detachment of the support can be prevented. According to an embodiment, the precise arrangement and adjustment of the first roll guide unit (421) and the second roll guide unit (422) can optimize the transport path and speed of the support.

[0210] That is, the roll guide unit (420) can ensure stable transport and accurate position adjustment of the support body. The roll guide unit (420) supports both ends of the support body and can guide the support body to be rolled evenly and at a constant speed around the roll fitted to the roll fixing unit (410). The guide unit (230) guides the linear movement of the support body and adjusts the angle and tension of the support body with respect to the roll, so that the support body can maintain a uniform thickness and quality even after passing through the hardening treatment unit (300).

[0211] Additionally, the roll guide unit (420) can be variably positioned depending on the characteristics of the composition and the requirements of the final product. For example, when processing thicker supports or supports with different physical properties, the position or angle of the roll guide unit (420) can be adjusted, thereby optimizing the transport path of the support. This configuration can maintain consistent product quality while improving the efficiency of the production process.

[0212] In various embodiments, the sheet forming unit (400) may include guide rollers or tensioners to minimize wrinkles or deformations that may occur during the roll-rolling process of the support, thereby ensuring the quality of the final product. Furthermore, additional modules may be included to perform additional functions, such as applying an additional protective layer to both sides of the support on which the composition has been hardened, or adding labeling for product identification, as needed during the roll-forming process.

[0213] The sheet forming unit (400) also plays a crucial role in the preparation process for product packaging and delivery. The roll-shaped cleansing sheet allows the user to cut it to an appropriate length as needed, thereby enhancing the product's usability. The inclusion of this sheet forming unit (400) significantly enhances the flexibility and productivity of the cosmetic coating device (1000), contributing to meeting diverse market demands.

[0214] In a further embodiment, the cosmetic coating device (1000) of the present invention may include an embossing unit (600) that forms grooves of a specific pattern on a support to which a composition has been applied and hardened. In one embodiment, the embossing unit (600) is provided between the hardening unit (300) and the sheet forming unit (400) to form grooves of a specific pattern on a support to which a composition has been applied and hardened.

[0215] According to an embodiment, the embossing portion (600) may include an embossing guide (610), a main body portion (620), a pattern roller housing (630a), a pattern roller (630), a bottom surface (640), and a roller position adjustment portion (622), as illustrated in FIG. 12.

[0216] The embossing guide (610) serves to guide a support material, on which a composition has been applied and hardened on one surface discharged through the discharge port of the hardening treatment unit (300), toward the pattern roller (630). The embossing guide (610) ensures that the support material passes accurately through the pattern roller, thereby enabling precise pattern formation.

[0217] In addition, the main body (620) provides a structural frame for the embossing section (600) and functions to support the pattern roller housing (630a). The pattern roller housing (630a) is fixed to the main body (620) to ensure that the pattern roller (630) is stably positioned, thereby enabling the pattern to be applied to the support.

[0218] The pattern roller (630) is a roller on which a specific pattern is engraved, and when a support body on which a composition has been applied and hardened passes through the space between the pattern roller (630) and the bottom surface (640), the support body can form a groove of a desired pattern.

[0219] According to an embodiment, a certain distance may be maintained between the pattern roller (630) and the bottom surface (640), and this distance may determine the depth of the pattern applied to the support.

[0220] In one embodiment, the roller position adjustment unit (622) can change the size of the space between the pattern roller (630) and the bottom surface (640) by changing the position of the pattern roller housing (630a) relative to the main body (620).

[0221]

[0222] *For a more specific example, the roller position adjustment unit (622) can finely adjust the distance between the pattern roller (630) and the bottom surface (640) by adjusting the vertical position of the pattern roller housing (630a) based on the main body (620). Through this, the depth of the pattern applied to the support body on which the composition is applied and hardened can be precisely set. For example, if a deeper pattern is to be formed on the support body, the pattern roller housing (630a) can be lowered through the roller position adjustment unit (622) to narrow the distance between the pattern roller (630) and the bottom surface (640). Conversely, if a shallower pattern is to be formed, the pattern roller housing (630a) can be raised to widen the distance between the pattern roller (630) and the bottom surface (640).

[0223] This adjustable feature allows for product diversity and customized design requirements, playing a crucial role in enhancing the quality and user satisfaction of the final product. This adjustable capability of the roller position adjustment unit (622) significantly enhances the flexibility of the manufacturing process and offers the advantage of enabling the rapid and precise application of customized patterns suited to the characteristics and requirements of various cosmetic products.

[0224] In summary, the embossing unit (600) can precisely form grooves of various depths and patterns on a support material to which a composition has been applied and hardened within a cosmetic coating device. The patterns formed on the support material can be designed in various ways to enhance the functionality, aesthetics, and user experience of the product.

[0225] In some embodiments, the pattern may also function to enhance the safety of the product. For example, an anti-slip pattern prevents slipping during use, reducing the risk of accidents that may occur during use. Such functional patterns provide a safer and more comfortable user experience. Furthermore, these patterns may also have a functional role in controlling the release rate of the active ingredient.

[0226] Additionally, it can incorporate aesthetic elements, such as visually appealing designs or logos for brand identification, contributing to increased sensory satisfaction when using the product. The visual elements of patterns can also play a crucial role in branding product packaging or the product itself, helping consumers easily recognize and remember the brand. This can be a marketing strategy, as the visual appeal of a product can help capture consumer attention and strengthen the brand image.

[0227] Additionally, specific patterns created through the embossing section (600) can play a significant role in enhancing the usability of the product. For example, patterns including easily segmentable dotted lines or specially designed cut lines allow the user to easily adjust the product to a desired size or shape. This is particularly useful for multi-purpose cosmetic products or products requiring controlled dosage.

[0228] In summary, the embossing unit (600) performs an essential function within the cosmetic coating device (1000), and can precisely form patterns on the support that enhance various functions, aesthetics, and user experience. These patterns contribute to enhancing product usability, safety, and brand identification, ultimately enhancing consumer satisfaction and strengthening market competitiveness.

[0229] In an additional embodiment, the coating device (1000) for cosmetics may include a bubble removal unit (700).

[0230] In one embodiment, the bubble removal unit (700) can effectively remove bubbles in a roll-to-roll sheet manufacturing process, thereby improving product quality. While the roll-to-roll process generally allows for continuous production and is advantageous for mass production, bubbles are likely to be included in the process of applying a liquid cosmetic formulation, and in particular, the bubbles may expand or condense during the heating process. These bubbles can impair the uniformity of the sheet surface and affect not only the aesthetic quality of the final product but also its functional performance. Accordingly, in the present embodiment, the bubble removal unit (700) can be applied to effectively remove unnecessary bubbles during the process.

[0231] For example, in some sheet production processes, when the applied liquid formulation is heated, the air contained therein may not escape and remain in the form of bubbles. In particular, in the process of manufacturing support-type cosmetic patches or mask packs, the formulation must be spread thinly and evenly coated, so the remaining bubbles can become an even more serious problem. Furthermore, in the case of cosmetic formulations containing specific ingredients, bubbles may be easily formed or not removed depending on the difference in surface tension, and this causes the bubbles to remain trapped within the coating layer, which can be a factor in compromising the consistency of the product. To solve this problem, in the present embodiment, a metal base (720) is utilized to physically induce and remove bubbles within the applied formulation, and an electrical method can be applied, if necessary, to promote the breakdown of bubbles.

[0232] For example, the production process for water-soluble cosmetic sheets typically involves applying a liquid water-soluble polymer and cosmetic mix to a continuous support and then heating to solidify. However, the bubbles generated during this process have been a major cause of surface unevenness in the final product. Water-soluble cosmetic sheets are designed to dissolve easily in certain solvents and naturally dissolve over a certain period of time when placed in close contact with the skin. Due to this characteristic, maintaining a consistent thickness and uniform surface quality is crucial. However, the inclusion of bubbles during the production process can result in a rough surface or reduced transparency. In particular, water-soluble cosmetic sheets have a higher surface tension than polyvinyl alcohol (PVA)-based sheets, making natural bubble removal difficult. Furthermore, the heating process can further condense and expand the bubbles. PVA-based sheets have a relatively low surface tension, allowing bubbles to spread easily and dissipate quickly. In contrast, water-soluble cosmetic sheets are composed of highly viscous water-soluble polymers, making it more likely for bubbles to remain and persist.

[0233] These issues can lead not only to a decline in cosmetic quality but also to a decline in tactile quality. For example, sheets that harden with air bubbles can feel uneven when applied to the skin, potentially undermining the product's competitiveness as a premium cosmetic product. Since a smooth texture and uniform surface quality are key factors in consumers' selection of premium products, addressing the air bubble problem is essential for enhancing product value. It can also impact brand trust and become a key factor in consumers' repeat purchases.

[0234] Accordingly, in the present invention, a bubble removal unit utilizing an electrostatic field is applied to the production process to effectively remove bubbles, thereby improving the surface quality of a water-soluble cosmetic sheet and enhancing the efficiency of the manufacturing process.

[0235] Meanwhile, conventional methods for removing bubbles required the addition of chemical additives or the introduction of a separate vacuum process, which can lead to increased process costs and reduced production efficiency. In particular, the use of chemical additives is limited due to concerns about the safety and regulatory compliance of cosmetic ingredients.

[0236] In this embodiment, by applying a bubble removal unit (700) that can effectively remove bubbles by a physical method, a cosmetic sheet of uniform quality can be manufactured without a separate chemical additive.

[0237] The present invention may include a bubble removal unit (700) that removes bubbles in order to solve the above-mentioned bubble formation problem.

[0238] According to an embodiment, the bubble removal unit (700) includes a bubble support (710) and a metal base (720), as illustrated in FIG. 13, and the metal base (720) is configured to allow electricity to flow and can perform the function of electrostatically removing bubbles.

[0239] Referring to Fig. 13, bubbles of various sizes may be formed within the formulation during the coating process, and the formed bubbles may coalesce into larger bubbles over time or expand with temperature changes, forming an uneven pattern on the sheet surface. In particular, in the case of cosmetic formulations based on water-soluble polymers, such as water-soluble cosmetic sheets, the surface tension is high, so there is a high possibility that bubbles will not naturally disappear and will remain. To solve this problem, the bubble removal unit (700) is arranged to remove bubbles before the liquid formulation containing bubbles enters the heating process during the roll-to-roll process (e.g., before entering the hardening treatment unit).

[0240] Referring to Fig. 14, the metal band (720) of the bubble removal unit (700) can perform a role of removing bubbles. The metal band (720) is supplied with power to form a constant electrostatic field, through which negatively charged bubbles in the formulation can be guided toward the metal band (720). That is, the electrical attraction can be applied to disperse the bubbles or remove them by being adsorbed to the metal band (720). The metal band (720) is arranged at an adjacent position (e.g., at a distance of about 3 mm) to the applied liquid formulation, and the arrangement interval can be adjusted depending on the bubble generation situation. That is, due to the electrostatic effect of the metal band (720), negatively charged bubbles due to cosmetic ingredients in the formulation are attracted to the metal bar and removed, so that bubbles in the sheet can be removed.

[0241] Meanwhile, the bubble support (710) serves to stably maintain the metal band (720) and contributes to forming a uniform electric field during the bubble removal process. In addition, the support (710) has a reinforcing structure so that the metal band (720) can maintain a constant position even during a continuous roll-to-roll process.

[0242] Figure 15 shows the results according to temperature conditions. If the work is performed under a temperature condition lower than the designated temperature condition within the hardening treatment unit (300), the composition is not fully hardened or a layer separation phenomenon occurs. On the other hand, if the work is performed under a temperature condition higher than the designated temperature condition, the composition does not harden evenly and defects such as cracks or holes are formed. On the other hand, if the NIR lamp is not used or the temperature control of the heating unit (321) is not performed under optimal conditions, the layer separation phenomenon becomes more prominent.

[0243]

[0244] While the embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

[0245] The specific implementations described in the present invention are exemplary embodiments and do not limit the scope of the present invention in any way. For the sake of brevity, descriptions of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. In addition, the lines connecting or connecting members between components depicted in the drawings are merely representative of functional connections and / or physical or circuit connections, and may be replaced or represented as various additional functional connections, physical connections, or circuit connections in an actual device. In addition, unless specifically mentioned as "essential," "important," etc., a component may not be absolutely necessary for the application of the present invention.

[0246] It should be understood that the specific order or hierarchy of steps in the presented processes is merely an example of exemplary approaches. It should be understood that the specific order or hierarchy of steps in the processes may be rearranged within the scope of the present invention based on design priorities. The appended method claims provide elements of various steps in a sample order, but are not intended to be limited to the specific order or hierarchy presented.

[0247] The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments disclosed herein, but is to be construed in the broadest scope consistent with the principles and novel features disclosed herein.

[0248] (Explanation of symbols)

[0249] 1000: Coating device

[0250] 100: Support supply section 110: Support plate

[0251] 120: Support fixing part 130: Support part

[0252] 200: Composition supply section 210: Roller section

[0253] 211: First roller 212: Second roller

[0254] 210a: Spacing 212-1: Support

[0255] 212-2: Position adjustment part 220: Support part

[0256] 230: Guide section 240: Initial hardening module

[0257] 241: First light source 242: Second light source

[0258] 243: Third light source 244: Fourth light source

[0259] 50: Stand

[0260] 300: Hardening treatment section 300a: Housing

[0261] 300a-1: Inlet 300a-2: Outlet

[0262] 300b: Interior space 300b-1: Area 1

[0263] 300b-2: Area 2 300b-3: Area 3

[0264] 310: Insertion guide 320: Support surface

[0265] 321: Heating unit 330: Light irradiation module

[0266] 340: Temperature control unit 341: Supply pipe

[0267] 342: Discharge pipe 350: Opening / closing member

[0268] 360: Leg section 400: Sheet forming section

[0269] 410: Roll fixing part 420: Roll guide part

[0270] 421: 1st roll guide part 422: 2nd roll guide part

[0271] 500: Control section 600: Embossing section

[0272] 610: Embossing guide section 620: Main body section

[0273] 622: Roller position adjustment unit 630: Pattern roller

[0274] 630a: Pattern roller housing 604: Bottom surface

[0275] 700: Bubble removal section 710: Bubble support section

[0276] 720: Metal belt

[0277]

[0278] The best mode for carrying out the invention as described above has been described.

Claims

1. A composition supply unit for applying a composition in a fluid state to one surface of a support; A hardening treatment unit that hardens a support to which the composition is applied from the composition supply unit; and A sheet forming section for producing a sheet using a support to which the composition is applied; Coating device for cosmetics.

2. In paragraph 1, The above coating device, A support supply section in which a roll-shaped support roll is mounted; and It further includes a control unit that controls the operation of the composition supply unit, the hardening treatment unit, and the sheet forming unit; The support rolled from the support roll is wound in the sheet forming section after passing through the composition supply section and the hardening treatment section in sequence. Coating device for cosmetics.

3. In paragraph 2, The above composition supply unit, A roller section including two rollers arranged to form a distance greater than a certain distance; A position adjusting unit that changes the gap between the two rollers by adjusting the position of one of the two rollers; A support portion that guides the injection of the composition in the direction of the roller portion; and When the composition is applied to one surface of the support, an initial hardening module that performs an initial hardening treatment on the applied composition; Coating device for cosmetics.

4. In paragraph 3, The above coating device, It further includes an input unit for obtaining composition characteristic information corresponding to the above composition; The above control unit, A method characterized in that the driving of at least one of the support supply unit and the sheet forming unit is controlled so that the support roll or the sheet is unwound or wound based on the composition characteristic information. Coating device for cosmetics.

5. In paragraph 4, The above control unit, Characterized in that the gap between the two rollers is adjusted by controlling the operation of the position adjustment unit based on the composition characteristic information. Coating device for cosmetics.

6. In paragraph 3, The above initial hardening module is, Provided in the upper direction of the support, it performs initial curing treatment on the composition applied to the support, A light source comprising a plurality of light sources supplying light of different wavelengths, wherein each of the adjacent light sources is arranged to supply light of different wavelengths. Coating device for cosmetics.

7. In paragraph 2, The above hardening treatment unit is, Housing that forms the interior space; An inlet formed on one side of the housing; An outlet formed on each of the other sides corresponding to the above side; A support surface provided in the above internal space and supporting a support body inserted through the insertion port on the lower surface; A light irradiation module provided in the upper direction of the above support surface; and A temperature control unit that changes the temperature of the internal space; including; Coating device for cosmetics.

8. In paragraph 7, The above internal space is, It is characterized by being divided into multiple areas to perform control over different temperature ranges, A first zone adjusted to a temperature range of 25°C to 100°C; A second zone adjusted to a temperature range of 50°C to 130°C; and A third zone, which is adjusted to a temperature range of 50°C to 110°C; including; Coating device for cosmetics.

9. In paragraph 7, The above hardening treatment unit is, A sensor unit that senses environmental information of the internal space; and Further comprising a heating unit provided on the inner side of the above support surface to supply heat; Coating device for cosmetics.

10. In paragraph 8, The above hardening treatment unit is, A separation membrane dividing the internal space into the plurality of regions; The above separation membrane is characterized in that it is provided to change the size of the passage between adjacent areas, The control unit controls the operation of the separation membrane based on the environmental information of each of the plurality of areas. Coating device for cosmetics.

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