KR200434410Y1 - Printed Steel Sheet - Google Patents

Abstract

The present invention is a metal plate printing method using a flat plate printing, comprising: (a) preparing a print object; (b) a first UV coating step of UV coating the object surface of step (a), (c) a printing step of performing the flat printing on the UV coating layer formed in step (b), and (d) the It characterized in that it comprises a second UV coating step of UV coating on the print layer produced in step (c), according to the present invention, it is possible to firmly print flat on a smooth surface, such as metal, between the print layer and the surface Damage due to separation of the print layer due to blooming may be prevented.

Metal plate, flatbed, printing, UV, coating

Description

Flat Plate Metal Sheet {Printed Steel Sheet}

1 is a block diagram showing a process sequence of a color printing method according to the present invention;

2 is an enlarged cross-sectional view schematically showing a cross section of a colored metal plate according to the present invention, and

FIG. 3 is a schematic diagram showing the layers constituting the colored metal plate of FIG. 2 separated.

The present invention relates to a flat plate printing metal plate that can print a variety of color photos, various images and pictures on a smooth metal plate, in particular, after the surface of the metal plate UV coating using a UV coating solution, The present invention relates to a flat plate printing metal plate which prints an image and then UV-coats it again to print a desired image more easily and firmly.

In general, a conventional method of printing on a metal surface is a method called a decal which prints on a film having a pressure-sensitive adhesive coating on the back and then sticks the back of the printed film to the metal surface, and the surface of the adherend Silk screen printing, which directly performs silk screen printing, has been mainly used.

The former decal method of the conventional printing method as described above has a great difficulty in completely removing the air between the adhesive surface and the metal surface in the process of sticking the back of the printed decal film to the metal surface, the air is not completely removed Otherwise, when heat is applied to the adherend, the film swells due to the expansion of air, which causes a fatal problem that the print film is separated from the adherend. In the case of the decal method, since the film production and the attaching process are performed separately, there is a disadvantage in the working speed and cost.

In the latter silk screen printing method, the printable colors are limited to 4 to 5 colors, which makes it difficult to realize realistic colors, while accurate printing of colors and colors when printing on large adherend surfaces. Due to this very difficult, there is a disadvantage that the print quality is poor, the silk screen printing method is generally used only when printing a simple pattern of color and pattern.

On the other hand, the existing photorealistic output was limited to the available media because it could be printed only on materials such as exclusive paper or banners. However, UV flatbed printing was developed to enable printing regardless of the material. However, UV flatbed printing was performed on smooth surfaces such as metal plates. In this case, the ink could not be firmly bonded and floated on the membrane of the plate.

In this regard, the present invention was devised to solve the above-mentioned defects. The liquid UV coating solution was applied to the metal surface, heat treatment was performed, and then the flat plate printing was performed thereon. Does not provide flat plate printing metal plate.

In order to solve the above problems and to meet the requirements, the present invention is a metal plate printing method using a flat plate printing, comprising: (a) preparing a print object; (b) a first UV coating step of UV coating the object surface of step (a), (c) a printing step of performing the flat printing on the UV coating layer formed in step (b), and (d) the It characterized in that it comprises a second UV coating step of UV coating on the printed layer produced in step (c).

In the step (b), it is preferable to apply heat treatment after applying the UV coating solution to the metal plate.

Flat printing metal plate for achieving another object of the present invention, a metal plate, a first UV coating layer formed by applying a UV coating liquid to the metal plate, a printing layer printed on the first UV coating layer using a flatbed printer, and the It characterized in that it comprises a second UV coating layer formed by applying a UV coating liquid on the printing layer.

The first UV coating layer and / or the second UV coating layer is characterized by being formed by applying a UV coating liquid to the metal plate and then heat processing.

The first UV coating layer and / or the second UV coating layer is formed by applying UV coating liquid to the metal plate and then irradiating ultraviolet rays.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a process sequence of a color printing method according to the present invention, FIG. 2 is an enlarged cross-sectional view schematically showing a cross section of a color metal plate according to the present invention, and FIG. 3 is a layer constituting the color metal plate of FIG. A schematic diagram showing the separation.

The color printing method according to the present invention is a metal plate preparation step (S10), as shown in Figure 1, the first UV coating step (S20) of UV coating on the metal plate of S10, the printing step of printing on the UV coating layer (S20 step) ), A second UV coating step (S40) for UV coating on the print layer of the step S30. The process is described in more detail as follows.

First, the metal plate 10 to be printed is selected and prepared in the metal plate preparation step (S10). The metal plate 10 may select various metals that require printing, and preferably, aluminum, aluminum alloy, iron, iron alloy, stainless steel, or the like may be used.

Next, the first UV coating step (S20) consists of applying a UV coating solution to the prepared metal plate 10 surface (S21) and curing the applied UV coating solution (S22). The UV coating solution applied in the step of applying the UV coating solution (S21) is generally referred to as UV paint, UV coating resin, UV varnish and is applied to the metal plate 10 using a spray or the like. The coated UV coating solution is cured in step S21, and the surface is coated with UV coating solution or cured by irradiation with ultraviolet rays. After the curing step (S22), the first UV coating layer 20 is formed.

In the S30 printing step, it is preferable to use flatbed printing. First, input the image to be printed on the computer and operate the image program to adjust the size and color of the image, determine the shape, etc. to select the image to print, and select it using an inkjet printer (flatbed printer) connected to the computer. The image is printed onto the UV coated metal plate 10. Since the printing on the UV-coated metal plate (10), unlike the prior art in which the print layer is completely bonded on the smooth metal plate without being covered and damaged even in a small impact, it has a robustness that does not peel off any impact.

After performing flat printing, the printing layer 30 may be dried using an infrared dryer or a heater dryer.

S40 The second UV coating step is a hard and high gloss transparent protective film by spraying the UV coating liquid onto the printing layer 30 and then heat-treating or projecting an appropriate amount of ultraviolet rays to stabilize the printing layer 30 physically and / or chemically. The second UV coating layer 40 is formed. By controlling the amount of UV coating liquid and the light projection time, the printing layer 30 is protected and high glossiness is ensured, so the printing layer 30 does not change even after a long period of time, and the printing layer does not peel off even when contacted or impacted with other objects. Will not.

The present invention made through such a step is capable of printing various images processed by a computer using a flatbed printer of an inkjet printer (digital output device) on a smooth metal surface, and the smooth metal plate 10 surface is UV coated. Thus, the printing layer 30 is separated from the metal plate 10 and overcomes the problems of the prior art, which peels off even a small impact by combining with the UV coating layer 20 bonded to the metal plate without turning.

In addition, UV coating on the print layer 30 again can form a rigid color printed metal plate that does not peel off or change under any impact.

On the other hand, the color metal plate according to the present invention is a metal plate 10, as shown in Figure 2 and 3, the first UV coating layer 20 formed on the metal plate 10, the first UV coating layer 20 It is composed of a printing layer 30 formed on, the second UV coating layer 40 formed on the printing layer (30).

The metal plate 10 is a metal plate requiring flat printing or the like on the surface, and any metal suitable for the product can be selected, and aluminum, iron, stainless steel, or an alloy thereof is preferable.

The first UV coating layer 20 is formed by applying a UV coating solution to the metal plate 10 and then curing the metal plate 10 so that the metal plate 10 and the printing layer 30 to be described later can be firmly bonded.

The print layer 30 is formed by printing a selected image on the surface of the metal plate 10 using an inkjet printer (flat panel printer) connected to a computer to which an image to be printed is input.

The second UV coating layer 40 is formed to protect the printing layer 30 is formed by applying a UV coating liquid on the printing layer 30 and then heat treatment or projecting an appropriate amount of ultraviolet light.

In the above embodiment, but limited to the metal plate, it can be seen that the surface is smooth and can be applied to a variety of materials, including plastic compounds, metals that do not produce a solid print layer when printing a flat plate and are included in the scope of the present invention.

According to the present invention as described above it is possible to firmly print flat on a smooth surface, such as metal, it is possible to prevent damage due to separation of the print layer due to the blooming (blooming) between the print layer and the surface.

Claims (5)

plate, A first UV coating layer formed by applying a UV coating liquid to the metal plate; A printing layer printed on the first UV coating layer using a flatbed printer, and Flat printing metal plate comprising a second UV coating layer formed by applying a UV coating liquid on the printing layer. The method of claim 1, The first UV coating layer is a flat plate printing metal plate, characterized in that formed by applying a UV coating liquid to the metal plate and heat processing. The method of claim 1, The second UV coating layer is a flat plate printing metal plate, characterized in that formed by applying a UV coating liquid to the metal plate and heat processing. The method of claim 1, The first UV coating layer is a flat plate printing metal plate, characterized in that formed by applying a UV coating liquid to the metal plate and then irradiated with ultraviolet light. The method of claim 1, The second UV coating layer is a flat plate printing metal plate, characterized in that formed by applying a UV coating liquid to the metal plate and then irradiated with ultraviolet light.

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