KR20210029381A - Metal-Gypsum Composite Finish Panel and Manufacturing Method Thereof - Google Patents

Abstract

The present invention uses a transfer film that can express complex patterns and shortens the production time, and after thermal transfer of the transfer film to a metal panel, UV coating is made of a material whose bendability is improved by a continuous process, it is easy to bend the edge of the metal panel. The metal panel is adhesively molded to cover the 5 sides of the gypsum board, which has excellent functional properties as a wall finishing material, such as insulation and sound insulation, so that the part exposed to the outside after construction has aesthetics and weather resistance, while at the same time providing the functional advantages of gypsum board. In addition, it is characterized in that it is possible to provide a more reliable bonding than the case where only the gypsum board and the wall are directly bonded by direct adhesive bonding between the wing portion, which is a side bent portion of the metal panel surrounding the gypsum board, and the wall. According to an embodiment of the present invention, the metal-gypsum composite finishing panel comprises: a metal panel in which a transfer film including a printed layer is thermally transferred to one surface and a UV coating layer is included on the transfer film; and a gypsum board bonded to the other surface of the metal panel, wherein the metal panel is formed with four wing parts by bending four corners, and is bonded to five surfaces except a surface bonded to a wall body of the gypsum board to receive the gypsum board.

Description

Metal-Gypsum Composite Finish Panel and Manufacturing Method Thereof}

The present invention relates to a metal-gypsum composite finishing panel and a method of manufacturing the same. More specifically, it relates to a composite finishing panel including a bendable metal panel having a transfer coating layer including a pattern printing layer and a high-gloss UV coating layer, and a gypsum board bonded to and accommodated in the metal panel.

The content described in this section merely provides background information on the present embodiment and does not constitute the prior art.

Aluminum panels are widely used for interior and exterior applications of buildings because of their light weight and excellent weather resistance. However, aluminum panels for these purposes are not easy to express in various patterns, and when UV coating of high hardness is applied to secure weather resistance, there are usually problems of cracking and breakage during bending, and thus, in most cases, they are only manufactured in a flat shape. .

On the other hand, it may be difficult to secure heat insulation, sound insulation, etc. for a wall finished with only the aluminum panel itself. Gypsum board has excellent thermal insulation and sound insulation properties, and cosmetic gypsum boards with printed or plastic coating on the surface are sometimes used for interior purposes. However, in order to finish a wall with only gypsum board, durability and aesthetics are relatively inferior compared to a metal panel having a pattern printing layer and a high-gloss UV coating layer. There are also gypsum boards for interior wall installation that are formed by bonding and laminating a metal layer or metal plate on one or both sides, and cutting and using panels as needed in the field, but the weather resistance of the level required for exterior is not provided.

In order to solve the above problems, the present invention thermally transfers a transfer film including a pattern layer and/or a color layer to a metal panel in order to secure the aesthetics of the finished panel, and is bendable so that there is no crack in the coating layer even after the metal panel is bent. The purpose is to provide a finishing panel with excellent aesthetics and functionality by forming the improved UV coating layer and forming a metal-gypsum composite finishing panel in which the gypsum board is wrapped by the metal panel by bending the edges of the metal panel.

In order to solve the above problems, in the metal-gypsum composite finishing panel according to an embodiment of the present invention, a transfer film including a printing layer is thermally transferred to one surface, and a metal panel including a UV coating layer on the transfer film ; And a gypsum board bonded to the other side of the metal panel, wherein the metal panel is bent at four corners to form four wings, and is bonded to five sides excluding the side bonded to the wall of the gypsum board to accommodate the gypsum board. It is characterized.

In addition, the UV coating layer is a resin comprising 20 to 30% by weight of acrylic monomer, 30 to 40% by weight of urethane oligomer, 10 to 20% by weight of 2-methoxyethanol, and 10 to 20% by weight of isopropyl alcohol. It characterized in that it is made by mixing.

In addition, it is characterized in that it includes a V groove inside the portion where the metal panel is bent.

In addition, the metal panel is characterized in that it includes a plurality of cutouts inward from the terminal edge of the wing portion.

In addition, the cutout is characterized in that it has a single shape and is arranged at regular intervals along the terminal edge.

In addition, the cutout is characterized in that it has one or more shapes and is alternately arranged along the terminal edge.

In addition, the cut-out is characterized in that it is formed to have a shape that is staggered in at least some sections with a cut-out shape formed at a line symmetrical position around the body of the metal panel.

In addition, a method for manufacturing a metal-gypsum composite finishing panel according to an embodiment of the present invention for solving the above problems includes the steps of thermally transferring a transfer film including a printing layer to one surface of the metal panel; UV made by mixing 20 to 30% by weight of acrylic monomer, 30 to 40% by weight of urethane oligomer, 10 to 20% by weight of 2-methoxyethanol, and 10 to 20% by weight of isopropyl alcohol Forming a UV coating layer on the metal panel on which the thermal transfer has been completed with a paint; Cutting the metal panel on which the UV coating layer has been formed; Forming four wing portions by bending four corners of the metal panel on which the cutting is completed; Applying an adhesive between the inside of the metal panel and the gypsum board to be accommodated in the inside of the metal panel; And completing bonding and curing by compressing the metal panel and the gypsum board.

In addition, the assembly of the metal panel and the gypsum board may further include a step of securing parallelism of the plurality of assemblies by stacking a plurality of assemblies before curing of the adhesive is completed and curing by compressing them in both directions.

In addition, the step of further pressing the plurality of assemblies from four sides other than the stacked direction of the plurality of assemblies is further performed simultaneously with the step of securing the parallelism of the assemblies.

In addition, it is characterized in that the compression is made by further including a high-hardness plate that is inserted between the plurality of assemblies.

The present invention uses a transfer film capable of expressing a complex pattern and shortens the production time, and after thermally transferring the transfer film to the metal panel, UV coating is made of a material that improves bendability by a continuous process. The metal panel is adhesively molded to cover the five sides of the gypsum board, which has the effect of easy bending and has excellent functional properties as a wall finishing material such as insulation and sound insulation, so that the part exposed to the outside after construction is secured aesthetics and weather resistance. The internal structure has the effect of providing the functional advantages of gypsum board.

In addition, since the wing portion and the wall, which are the side bent portions of the metal panel surrounding the gypsum board, are directly bonded to each other, it is possible to provide a more reliable bonding than when only the gypsum board and the wall are directly bonded.

1 is a cross-sectional view showing the structure of a metal-gypsum composite finishing panel in which a transfer film having a pattern is thermally transferred, has a high hardness UV coating layer, and accommodates a gypsum board therein according to an embodiment of the present invention.
2 is a cross-sectional view showing the structure of a transfer film according to an embodiment of the present invention.
3 shows a sheet metal shape before bending of a metal panel according to an embodiment of the present invention.
4 shows a form in which wing portions of adjacent metal panels are overlapped by being constructed on a wall according to an embodiment of the present invention.
5 is a conceptual diagram illustrating equipment for manufacturing a metal panel according to an embodiment of the present invention.
6 is a process chart showing a method of manufacturing a composite finishing panel according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible, even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, in describing the constituent elements of the present invention, terms such as first, second, A, B, (a) and (b) may be used. These terms are for distinguishing the constituent element from other constituent elements, and the nature, order, or order of the constituent element is not limited by the term. Throughout the specification, when a part'includes' or'includes' a certain element, it means that other elements may be further included rather than excluding other elements unless otherwise stated. . In addition, the'... Terms such as'sub' and'module' mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

1 is a cross-sectional view showing the structure of a metal-gypsum composite finishing panel in which a transfer film having a pattern is thermally transferred, has a high hardness UV coating layer, and accommodates a gypsum board therein according to an embodiment of the present invention.

Referring to FIG. 1, a metal-gypsum composite finishing panel 1 according to an embodiment of the present invention includes a gypsum board 20 and a metal panel 10 having a transfer coating layer 12. In addition, the metal panel 10 having the transfer coating layer 12 includes the aluminum panel 110, the transfer film transfer layer 12 disposed on the aluminum panel 110, and the UV disposed on the transfer film transfer layer 12. It includes a coating layer 160.

2 is a cross-sectional view showing the structure of a transfer film according to an embodiment of the present invention.

Referring to FIG. 2, the transfer film 11 includes a vinyl layer 170, a release agent layer 150 formed on the vinyl layer 170, and a print layer on which a pattern to be transferred is printed. (130, 140), it is formed on the printing layer (130, 140) and includes an adhesive layer 120 to attach the aluminum panel 110 and the transfer film (11).

The vinyl layer 170 may be made of a transparent and stretchable polyvinyl chloride material, and is a layer that is removed after transfer. The releasing agent layer 150 is formed by synthesizing a resin as a releasing agent component and various organic solvents. The printing layer 140 is a layer formed by printing a dye obtained by mixing a urethane resin and an organic solvent to form a patterned layer, and is transferred to the surface of the aluminum panel 110 by thermal transfer. The adhesive layer 120 is a layer formed on the other side of the printing layer 140 and attached to the portion of the aluminum panel 110 to be transferred, and may be composed of an oil-based bond or a water-based bond. It can be composed of 60 to 70 parts by weight of phosphorus, 1 to 10 parts by weight of acetone, 10 to 20 parts by weight of para-tertiary-buthylphenol-formaldehyde and 10 to 20 parts by weight of polyurethane. have. In the metal panel 10 according to an embodiment of the present invention, a printed pattern is thermally transferred onto the aluminum panel 110 by the transfer film 11.

3 shows a sheet metal shape before bending of a metal panel according to an embodiment of the present invention.

Referring to FIG. 3, FIG. 3(a) shows an embodiment of the simplest form in a form in which only four corners excluding a portion to be bent are removed.

First, an embodiment of the most basic form of the present invention will be described with reference to Fig. 3(a).

The metal panel 10 is UV coated and the protective film is attached to the metal panel 10 in close contact with the corresponding gypsum board 20 from 5 sides in consideration of the size of the gypsum board 20 to which the metal panel 10 is attached. And cut it into a size that can be wrapped. The metal panel 10 may be cut by various conventional methods such as press, sheet metal, laser, and water jet. In addition, the metal panel 10 may be moved to a press sheet metal equipment after cutting to be bent, or may be configured to continuously cut and bend in the press sheet metal equipment. It will be appreciated that the bending process and equipment can be implemented by a method including various modifications in addition to the methods described by those of ordinary skill in the art.

The bent metal panel 10 may be closely bonded to accommodate the gypsum board 20 by applying an adhesive 410 to the inside to which the gypsum board 20 is to be attached and inserting the gypsum board 20. .

At this time, 5 surfaces of the gypsum board 20 except the surface to be attached to the wall are adhered to the inside of the metal panel 10. In a state in which the bonding is completed, the wall attachment surface of the gypsum board 20 may be assembled to have the same height as the edge of the wing portion of the metal panel 10 or to protrude slightly more than the edge of the wing portion.

During the construction process, gypsum bond is also applied between the wall attachment surface of the gypsum board 20 and the wall.Therefore, there is a thickness due to this, so the extent of a little protruding than the gypsum board 20 combined with the wing edge of the metal panel 10 would be okay. However, preferably, considering the precision of the sheet metal and the bending process of the metal panel 10, which is not usually high, the adhesive including the gypsum board 20 protrudes a little more than the edge of the wing or the same height. desirable.

According to the present invention, the wall attachment surface of the gypsum board 20 is formed at the same height as or slightly higher than the edge of the wing portion of the metal panel 10. That is, the composite finishing panel 1 according to an embodiment may be bonded between the wall and the edge of the wing portion of the metal panel 10 with an adhesive.

This is a feature in contrast to the case of bonding only one surface of the gypsum board 20 and the wall with a gypsum bond. Although the gypsum board 20 differs according to its type, its tensile strength is weak, so that a part of the surface combined with the adhesive and the body are easily separated by crushing the body. On the other hand, in the metal-gypsum composite finishing panel 1 according to an embodiment of the present invention, the edge of the wing portion and the wall of the metal panel 10 can be directly bonded by an adhesive applied to the wall, providing a more robust bond. can do.

A flame-retardant silicone adhesive may be used for bonding the metal panel 10 and the gypsum board 20, and a gypsum bond may be used for assembling the gypsum board 20 and the wall.

In addition, since the wing portions of the metal panel 10 are bonded to and surround the four sides of the gypsum board 20, if the wall and the four wing portions are firmly coupled, adhesion between the gypsum board 20 and the wall may not be essential. However, considering the usual construction process, including that the flatness of the wall may not be guaranteed, the adhesive (gypsum bond) between the wall attachment surface of the gypsum board 20 and the wall is a plurality of metal-gypsum composite finishing panels (1). ), it will still be necessary to construct it.

3(b) and (c) are modified embodiments derived from consideration for increasing the reliability of bonding when a plurality of composite finishing panels according to an embodiment of the present invention are installed on a wall.

4 shows a form in which wing portions of adjacent metal panels are overlapped by being constructed on a wall according to an embodiment of the present invention.

Additional embodiments will be described with reference to FIGS. 3 and 4.

3(b) shows a shape in which portions of the bent metal panel 10 are regularly removed along the edge of the wing portion. This removal may be referred to as a cutout. In the illustrated example, a semicircle shape is illustrated as a shape to be removed, but is not limited thereto, and various shapes such as a triangle and a square may be included. 3(c) shows a shape in which portions of the bent metal panel 10 are irregularly removed along the edge of the wing portion. In the illustrated embodiment, the shape to be removed may be formed so that the same pattern is not symmetrical to each other in the same position and size in the facing wing part.

3(b) and 4(a), the side wing portions of the metal panel 10 may be formed to have a structure in which a predetermined shape is regularly arranged before the bending step. Considering that a plurality of composite finishing panels 1 are arranged and attached to the wall so as to be adjacent to each other, the side wing portions of the metal panel 10 are semicircles between the wall and the edge as shown in FIG. )-Shaped empty space is secured, and the adhesive applied to the corresponding part of the wall fills the empty space in the form of a semicircle, and can be combined with the wing portions of the adjacent two composite finishing panels (1).

Further, referring to FIGS. 3(c) and 4(b), the side wing portions of the metal panel 10 may be formed to have a structure in which a plurality of predetermined shapes are irregularly arranged before the bending step. In the case of the illustrated embodiment, the side portions of the adjacent composite finishing panel 1 are assembled in a form in which an empty space is intersected in two stages between the wall and the corner. At this time, the adhesive filling between the wall and the edge can more firmly bond the wall and the adjacent two composite finishing panels 1.

In this way, since the composite finishing panel 1 of the present invention can be implemented by a side wing part with a solid connection to the wall, the height or flatness of the composite finishing panel 1 is adjusted between the gypsum board 20 and the wall. The workability can be improved because it can be applied only at a minimum level for the purpose.

Hereinafter, a manufacturing process of the composite finishing panel 1 according to an embodiment of the present invention will be described.

5 is a conceptual diagram illustrating equipment for manufacturing a metal panel according to an embodiment of the present invention.

The metal panel 10 constituting the metal-gypsum composite finishing panel according to an embodiment may be a panel made of aluminum. By thermally transferring the transfer film to the aluminum panel material in a continuous process using a thermal transfer roll, mass production is possible by greatly reducing the manufacturing process and time of the panel, and the operation of the panel size is possible. In particular, UV including urethane oligomers By forming a UV coating layer using a curable resin, even if the edge of the panel is bent to be used as a building exterior panel, there is an effect that the crack of the coating layer does not occur.

In addition, the present invention eliminates the process of applying an adhesive to the surface of a panel to be printed, and performs transfer using a transfer film on which an adhesive layer is formed, and at the same time performing UV coating, thereby providing an effect of greatly shortening the printing coating manufacturing time.

In particular, the composite finishing panel according to an embodiment includes the functional advantages of the gypsum board 20 such as thermal insulation and sound insulation by receiving the gypsum board 20 by the metal panel 10 having excellent aesthetics and weather resistance. It has the effect it provides.

The above-described embodiments described a structure in which the metal panel 10 accommodates the gypsum board 20, but is not limited thereto, and a board having a similar shape such as a non-combustible inorganic plate may be used instead of the gypsum board 20. . On the other hand, the thickness of the gypsum board 20 is generally in the range of 5 to 35 mm, and the most commonly used standard is 900x1800 (mm) with a thickness of 9.5 mm. When the gypsum board 20 of such a standard is used, it is preferable that the wing portion of the metal panel 10 has a width of 9.5t or less.

5, the exterior panel manufacturing equipment according to an embodiment of the present invention includes a panel preheating end 210, a thermal transfer film supply end 212, a thermal transfer roller end 214, a release paper peeling end 216, UV paint application stage 220, stabilization stage 222, first smoothing stage 224, second smoothing stage 226, first drying stage 228, second drying stage 230, cooling stage 232 ) And a protective film attachment end 236.

The panel preheating stage 210 preheats the aluminum panel 110 that is continuously supplied, and reduces the temperature difference between the thermal transfer rollers 304, 306, 308 and the aluminum panel 110 in the thermal transfer process. The adhesive layer 120 is adhered to the aluminum panel 110 by heat in a thermal transfer process and has a viscosity by increasing the temperature. The adhesive layer 120 better absorbs the transfer ink in this state. By preheating the aluminum panel 110, the aluminum panel 110, the adhesive layer 120, and the printing layer 140 may be more firmly adhered to each other.

In addition, in the case of thermal transfer to the aluminum panel 110, as in one embodiment, since thermal dissipation from the aluminum panel 110 is fast, the thermal transfer process is maintained at a constant temperature when the aluminum panel 110 is preheated. It is advantageous to do. In addition, since thermal transfer is performed in a state in which the aluminum panel 110 is thermally expanded by preheating, the degree of thermal expansion and the difference of the transfer film 11 are reduced, so that the printed pattern can be transferred more precisely.

The panel preheating stage 210 has a structure in which the top, bottom, left, and right are sealed except for an inlet and an outlet through which the aluminum panel 110 is input and discharged. Inside the panel preheating stage 210, a heating unit for heating the inputted aluminum panel 110 is installed. For example, in the case of the aluminum panel 110, heating to preheat the surface temperature of the discharged aluminum panel 110 to around 80° C. The negative temperature is maintained at 230 °C. It is preferable to set the surface temperature of the aluminum panel 110 and the temperature of the heating unit to a high temperature at a level at which the transfer ink of the printing layer 140 does not melt and flow, and appropriate process conditions through an experiment according to the material and size of the panel. Can be selected.

The thermal transfer film supply end 212 is a section in which the roller 302 on which the transfer film 11 is wound is disposed. The roller 302 is input from the top of the thermal transfer film supply end 212.

The thermal transfer roller end 214 allows the printing layer 140 to be transferred to the surface of the aluminum panel 110 through the adhesive layer 120. Referring to FIG. 2, the thermal transfer roller stage 214 includes a first roller 304, a second roller 306, and a third roller 308, and is composed of three stages.

In the thermal transfer process, a resin crosslink is formed in the adhesive layer 120 due to the elevated temperature of the transfer film 11 and the aluminum panel 110, thereby increasing the bonding strength with the aluminum panel 110.

에서 1~30분 동안 이루어질 수 있다. 전사코팅층(12)의 온도는 열전사 롤러(304, 306, 308)의 온도 보다 낮다. 이때 알루미늄 패널(110) 예열 온도, 열전사 롤러(304, 306, 308) 온도 및 알루미늄 패널(110) 이송 속도 등의 공정 조건은 사용된 전사코팅 잉크, 전사코팅층(12)의 두께 및 패널의 종류 등에 따라 달라질 수 있다. The additional hardening of the transfer coating layer 12 in the thermal transfer process is 150 to 250 based on the temperature of the thermal transfer rollers 304, 306, and 308.

It can be done for 1 to 30 minutes. The temperature of the transfer coating layer 12 is lower than that of the thermal transfer rollers 304, 306, and 308. At this time, the process conditions such as the preheating temperature of the aluminum panel 110, the temperature of the thermal transfer rollers 304, 306, 308, and the transfer speed of the aluminum panel 110 are the transfer coating ink used, the thickness of the transfer coating layer 12, and the type of the panel. It can be different depending on etc.

In the case of thermal transfer of the transfer film 11 to the aluminum panel 110 according to an embodiment of the present invention, the temperature of the first roller 304 is 200 °C, the temperature of the second roller 306 is 210 °C, and the third The temperature of the roller 308 is set to 230° C., and the conveying speed of the aluminum panel 110 is preferably 6 m/min.

The release paper peeling end 216 peels the vinyl layer 170 from the aluminum panel 110 on which thermal transfer has been completed, winds it on a collection roll 310, and transfers the thermally transferred aluminum panel 110 to the UV coating step. Before UV painting, foreign substances on the surface of the aluminum panel 110 may be removed using an airbrush 312 or the like.

In this process, the surface is subjected to corona discharge treatment to improve the wettability of the surface of the aluminum panel 110, thereby improving the adhesion of the subsequent UV coating. Alternatively, a primer layer may be formed on the thermal transfer layer 11 in order to improve the adhesion of the UV coating afterwards.

UV coating is a coating method with excellent salinity, smoothness, hiding power, whiteness, high gloss and hardness, and is completed by curing a material that is sensitive to ultraviolet rays among paint components using ultraviolet rays (UV).

In one embodiment, the UV-curable resin cured by ultraviolet rays is 20 to 30% by weight of acrylic monomer, 30 to 40% by weight of urethane oligomer, 10 to 20% by weight of 2-methoxyethanol, and iso It is preferably made by mixing 10 to 20% by weight of propyl alcohol.

As a constituent of a resin, a monomer is used as a reactive diluent for oligomers to impart workability of the resin mixture, and is polymerized by itself by UV irradiation to act as a crosslinking agent between polymers. It is a compound that has. In a state where acrylic and urethane are mixed in an emulsion state so that they become intimate molecular mixing, they can be cured through the process of grafting/crosslinking by UV irradiation.

When acrylic is formed of a polymer, it has excellent weather resistance and can obtain a high-gloss surface, but it has poor elasticity and low resistance to abrasion. On the other hand, urethane has good elasticity, high resistance to abrasion, and excellent resistance to solvents.

The acrylic monomer is preferably included in an amount of 30% by weight, and at a higher% by weight, the elasticity decreases and becomes hard, so the abrasion property may be lowered, and the mixing of the acrylic monomer and the urethane oligomer is not sufficiently intimate. Since the two phases are cured to appear, the physical properties of the film may be deteriorated. The acrylic monomer is preferably 20 to 30% by weight so that surface cracks do not occur when the panel is bent while securing sufficient hardness to be used as an exterior panel for building by the acrylic monomer. On the other hand, compared to acrylic, urethane is less resistant to moisture such as rain and snow, and when the content of acrylic monomer is 30% by weight, the degree of moisture absorption is reduced by about half compared to pure urethane, so that the weather resistance required for the exterior panel can be secured. have.

As a main factor determining the properties of the UV coating layer 100, the urethane oligomer imparts abrasion resistance, toughness, and flexibility to the UV coating layer 100. In the aluminum exterior panel according to an embodiment of the present invention, the UV coating layer 100 including urethane oligomer is formed, so that even if the edge of the panel is bent so that the exterior panel is mounted on the exterior wall of a building, the transfer coating layer 12 and the UV coating layer 100 It is characterized by no damage such as cracks in ). On the other hand, by using a urethane-based oligomer, an increase in adhesion strength to the residual release agent layer 122 and the pattern ink layer 144 can be expected.

On the other hand, in using UV-curable resin paint for exterior panels, the viscosity of the resin is the most important factor among the physical properties of the paint used for coating purposes, and securing an appropriate viscosity is to facilitate operation convenience and control of the thickness of the coating film. very important. The 2-methoxyethanol of an embodiment also serves as a solvent including a prepolymer composed of a urethane oligomer and an acrylic monomer and also serves to secure the viscosity of the paint. 2-methoxyethanol is a sticky solvent. In one embodiment, the stabilization step of stabilizing the applied UV paint over a predetermined period of time, the first smoothing step (S530) and the first step of establishing the smoothness of the stabilized UV paint by maintaining a temperature 15 to 20 ℃ higher than room temperature. 1 In the process of going through the second smoothing step (S540) in which a chemical reaction occurs with a UV lamp to additionally establish the smoothness of the UV paint, the UV resin uses 2-methoxyethanol to determine the thickness uniformity and smoothness of the applied UV paint. Contribute to securing.

UV painting is painting using lines (automation) such as conveyor transfer, and the entire process is carried out in a clean room. The transfer conveyor is preferably at a speed of 5 to 10 m/min, and in one embodiment, it is transferred at a panel transfer speed of 6 m/min in the thermal transfer process. As for the painting method, a curtain coat method or a method of applying autospray using a machine is applied.

The UV paint application stage 220 applies a UV curable paint according to an embodiment to the aluminum panel 110 on which the transfer has been completed. The UV paint is supplied at a temperature of, for example, 35° C. so that the viscosity of the paint is lowered to improve flowability and is applied to the aluminum panel 110 with a uniform thickness, and laminar flow in the form of a film having a width wider than that of the aluminum panel 110 ( laminar flow) is applied to the aluminum panel 110 being transferred. In one embodiment, the applied thickness of the UV paint is 70 μm.

The stabilization stage 222 is a section in which the step of stabilizing the paint is performed immediately after the UV paint is applied, and is a section in which the applied paint is stabilized using spreading by the viscosity of the paint itself by having a conveyor transfer time for a certain section.

The first smoothing stage 224 maintains a constant temperature to establish the initial smoothness of UV paint, and the entire section of a dust-free room using a steam boiler, electric heater, and IR (Infra-Red, 316) lamps, etc. It is a section that maintains a constant temperature of and establishes the smoothness of the initial UV paint.

The second smoothing stage 226 is a step of establishing a secondary smoothness by causing a chemical reaction of the UV paint using the first UV lamp 318 of a small amount of light, and a low pressure (140 W) TL (thalium) lamp It is a section, and the UV lamp is composed of a mercury UV lamp with a wavelength of 365 nm and a gallium UV lamp with a wavelength of 420 nm.

The first drying stage 228 performs a step of first drying the UV paint applied to the aluminum panel 110 by causing a chemical reaction of the UV paint using the second UV lamp 320. It is a section of the TL lamp of high pressure (more than 1 kW), and the UV lamp is composed of a mercury UV lamp with a wavelength of 365 nm and a gallium UV lamp with a wavelength of 420 nm. The first drying stage 229 may be provided with a high-speed ventilation system having a wind speed of 38 m/min, for example, to exhaust the evaporated internal solvent. By lowering the internal pressure of the drying stage, the internal solvent can be evaporated and dried quickly.

The first UV lamp 318 may be operated differently according to the color of the base ink layer 142.

When the color of the base ink layer 142 is white, UV irradiation may be performed only with a mercury UV lamp, and it is preferable that UV irradiation is performed by operating the gallium UV lamp together as the color of the base ink layer 142 is darker. . If the color of the base ink layer 142 is dark, the ratio of UV light reflected from the base ink layer 142 after passing through the UV coating layer 100 is reduced, and a gallium UV lamp providing higher light energy is used together. It is more preferable in establishing the smoothness of the UV coating layer 100.

The second drying stage 230 performs a step of completely drying the UV paint applied to the aluminum panel 110 by using the amount of light from the high-pressure third UV lamp 322. A process of completely drying the UV paint applied on the aluminum panel 110 is performed using the amount of light of a high pressure 13 kW gallium UV lamp, a 16.8 kW gallium UV lamp, and a 13 kW mercury UV lamp.

The cooling stage 232 is a section for cooling the dried aluminum panel 110 to room temperature. After that, the UV coating layer 100 is inspected for good or bad under inspection lighting.

The protective film attachment end 236 is a section in which a protective film for protecting the exterior of the aluminum panel 110 is attached to the outside of the finished aluminum panel 110 during storage and transportation. The protective film is coated with an easily peelable adhesive, and is preferably a PE or PET material having a thickness of 50 to 100 μm.

When the aluminum panel 110 is used by bending the edge, a process of performing V-groove cutting processing in advance on the bent portion may be added in the step before attaching the protective film.

6 is a process chart showing a method of manufacturing a composite finishing panel according to an embodiment of the present invention.

Since the composite finishing panel 1 according to an embodiment uses a gypsum board 20 that does not have high degree of parallelism or flatness regulation, it is preferable to prepare a plan for securing parallelism when bonded to the metal panel 10 by using this. . In particular, since the metal panel 10 of one embodiment includes a high-gloss UV coating, if a plurality of composite finishing panels 1 has a flatness error, an installation error can be easily revealed by the reflection of light when it is installed on the wall, so a countermeasure is required. need.

To this end, in one embodiment, after applying an adhesive between the gypsum board 20 and the metal panel 10, a plurality of assemblies are laminated, pressed by a press or the like, and then cured to secure parallelism. At this time, a sufficiently hard (hard) flat plate member may be inserted between each assembly so that the degree of parallelism is more easily secured.

Further, referring to FIG. 6(b), the bonding of the bent side wings of the metal panel 10 may be assisted until curing of the adhesive is completed through a structure pressing the four sides of the stacked assembly.

The above description is merely illustrative of the technical idea of the present embodiment, and those of ordinary skill in the technical field to which the present embodiment pertains will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but to explain the technical idea, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of this embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present embodiment.

Claims (11)

A metal panel in which a transfer film including a printing layer is thermally transferred to one surface and includes a UV coating layer on the transfer film; And
Gypsum board bonded to the other surface of the metal panel
Including,
The metal panel is bent at four corners to form four wing portions, and is joined to five surfaces except for a surface joined to the wall of the gypsum board to accommodate the gypsum board.
Metal-gypsum composite finish panel. The method of claim 1,
The UV coating layer contains 20 to 30% by weight of acrylic monomer, 30 to 40% by weight of urethane oligomer, 10 to 20% by weight of 2-methoxyethanol, and 10 to 20% by weight of isopropyl alcohol. Mixed
Metal-gypsum composite finish panel. The method of claim 1,
Including a V-groove inside the portion where the metal panel is bent
Metal-gypsum composite finish panel. The method of claim 1,
The metal panel includes a plurality of cutouts inward from the end edge of the wing portion.
Metal-gypsum composite finish panel. The method of claim 4,
The cutout has a single shape and is arranged at regular intervals along the end edge.
Metal-gypsum composite finish panel. The method of claim 4,
The cutout has one or more shapes and is alternately arranged along the longitudinal edge
Metal-gypsum composite finish panel. The method of claim 6,
The cutout is formed to have a shape that is staggered in at least some sections with the cutout shape formed at a line symmetrical position about the body of the metal panel.
Metal-gypsum composite finish panel. Thermally transferring a transfer film including a printed layer onto one surface of the metal panel;
UV made by mixing 20 to 30% by weight of acrylic monomer, 30 to 40% by weight of urethane oligomer, 10 to 20% by weight of 2-methoxyethanol, and 10 to 20% by weight of isopropyl alcohol Forming a UV coating layer on the metal panel on which heat transfer is completed with a paint;
Cutting the metal panel on which the UV coating layer has been formed;
Forming four wing portions by bending four corners of the metal panel on which the cutting has been completed;
Applying an adhesive between the inside of the metal panel and the gypsum board to be accommodated in the inside of the metal panel; And
Completing bonding and curing by compressing the metal panel and the gypsum board;
Is made sequentially
Metal-gypsum composite finishing panel manufacturing method. The method of claim 8,
The assembly of the metal panel and the gypsum board further comprises the step of securing parallelism of the plurality of assemblies by stacking a plurality of the assemblies before curing of the adhesive is completed and curing by compressing in both directions of the stacking.
Metal-gypsum composite finishing panel manufacturing method. The method of claim 9,
The step of further compressing the plurality of assemblies from four sides other than the stacked direction of the plurality of assemblies is further performed simultaneously with the step of securing the parallelism of the assemblies.
Metal-gypsum composite finishing panel manufacturing method. The method of claim 9 or 10,
Compressed by further including a high hardness plate inserted between a plurality of the assembly
Metal-gypsum composite finishing panel manufacturing method.

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