KR101956054B1 - Method for manufacturing decorative metal tile - Google Patents

Abstract

The present invention relates to a method for manufacturing a decorative metal tile, in which the bonding strength of a decorative layer formed on a surface of the metal tile is improved such that the decorative layer is not separated from the surface of the metal tile, and a decoration protecting layer is formed by applying a coating agent containing color particles to the decorative layer, thereby further enhancing decorative properties and durability of the metal tile. According to one embodiment of the present invention, the method for manufacturing a decorative metal tile comprises: a pre-processing step of washing a metal plate processed in a desired shape and size to prepare a metal tile material with a cleaned surface; a painting step of obtaining a primarily processed tile by performing a normal spray painting or an electro-deposition coating on the metal tile material with a cleaned surface to laminate a base layer on the surface of the tile material; a design placing step of obtaining a secondarily processed tile by laminating a pattern layer on the base layer of the primarily processed tile with a digital flatbed printer; a placement step of placing the secondarily processed tile in a clean room or a chamber, the environment of which can be adjusted, for a predetermined time to harden the base layer and the pattern layer and enhance the bonding strength between the surface of the tile material and the bottom layer and the pattern layer; and a coating step of obtaining a completely processed metal tile by applying a coating agent to the pattern layer and the bottom layer of the secondarily processed tile to laminate the decoration protecting layer thereon.

Description

Technical Field [0001] The present invention relates to a method of manufacturing decorative metal tiles,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative metal tile and a method of manufacturing the same, and more specifically, to a decorative metal tile having a desired decorative layer by applying various patterns and colors to a surface of a metal tile made of a metal plate such as an aluminum plate or a steel plate, To a decorative metal tile in which the durability of the decorative layer and the decorative property of the metal tile are further enhanced by laminating the decorative protective layer by applying a coating agent on the decorative layer and a method for manufacturing the same.

Ceramic tiles, which we commonly encounter, are examples of clay, ore, or various other mineral materials (including natural and synthetic) as examples of walls, columns, floors, or ceilings of buildings, It can be divided into interior tiles, exterior tiles, floor tiles, etc. depending on the application or use.

Epoxy tile, epoxy bond, back cement, superman, mortar (mixture of cement and sand), oil price, tile molding, etc., depending on whether the ceramic tile is a porcelain tile or a porcelain tile or a stone tile. Etc. are used.

However, this ceramic tile is vulnerable to an external impact and is easily damaged or detached from the construction surface. Therefore, the tile is often repaired more frequently than the metal tile described later.

Therefore, a new tile that can replace ceramic tiles has been developed. As a representative example, metal tiles which are the subject of the present invention can be mentioned.

Here, as a prior art of the metal tile to be a background of the present invention, the techniques disclosed in Patent Documents 1 to 3 will be briefly described as follows.

First, in Patent Document 1, a bending piece is formed on the left and right sides of a metal panel, a connecting hole is bored in a lower end inclined piece, a connecting rod is protruded to an upper inclined piece, a small hole is formed in a supporting piece, And a packing is adhered to the outer surface side of the right and left bent pieces.

The surface of the metal tile is painted by silk screen printing, painted by a brush or spray gun, and coated with a transparent or translucent surface protection cream.

Next, in Patent Document 2, an insertion space portion and an irregularly-decorated portion formed of a brass plate or a stanbul plate having a thin thickness are respectively formed at arbitrary points on the surface, an outer bent portion is formed along the outer periphery, A filling tile which is made of cement, stone, or resin and is disposed in a space between the inner and outer bent portions of the tile cover, and a filling tile which is inserted in the insertion space portion of the tile cover, A tile having an inner tile made of a metal tile or the like and a metal cover made up of a filling net attached to the bottom surface of the filling tile and the inner tile.

Next, in Patent Document 3, the outer surface of a metal plate is painted with a resin so that the background color is set to a predetermined color, and the surface of the metal plate is transferred to a surface of the metal sheet by silk screening, computer construction or the like, or by gold (gold) There is disclosed a patterned metal sheet to which decoration is applied and a coating treatment is performed so as to have sufficient strength and durability.

Patent Document 1: Published Unexamined Patent Publication No. 1987-0005156 Patent Document 2: Registration Utility Model Registration No. 20-0314383 Patent Document 3: JP-A-5-246199

The metal tile of the type disclosed in Patent Document 1 weakens the bonding strength between the surface of the metal panel and the decorative layer because the decorative layer is formed by directly drawing the pattern on the surface of the metal panel or by transferring the pattern by silk screen printing , There is a problem that the coating layer is easily peeled off from the surface of the metal panel together with the decorative layer even if it is coated with the surface protective agent. Such detachment of the decorative layer is a problem to be positively resolved because it makes the appearance of the portion where the metal tile is installed disliked.

The metal tile of the type disclosed in Patent Document 2 is not only troublesome from the preparation of the material because it is a structure in which a plurality of elements having different properties, that is, a filling tile made of a metal tile cover and cement, The manufacturing process is complicated, and the types of patterns that can be realized by the decorative inner tiles are also very limited.

Since the metal tiles of the type disclosed in Patent Document 3 are transferred to the surface of the metal sheet by using a silk screen, a photographic plate, or a computer generated template, the metal sheet is transferred to a metal sheet larger than the template It is easy to cause color mixing at the boundary portion of the pattern and repeated use of one template may cause migration problems so that a large number of templates are formed in proportion to the production amount of the metal tiles There is a problem that the template must be prepared and, finally, the template after use must be properly disposed of.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the conventional problems associated with the manufacture of metal tiles, and is limited by the size of the metal plate as the material of the metal tiles by forming a pattern layer (i.e., a pattern) (High quality) pattern can be realized on the surface of the metal plate without using the template, the problem of disposal of the template is not fundamentally generated, and after the surface of the metal plate is cleaned and dried, the base layer, the pattern layer, The present invention aims at providing a method of manufacturing a decorative metal tile in which the bonding strength between the base layer and the metal plate and the bond strength between the base layer and the metal plate are strengthened, have.

A method of manufacturing a decorative metal tile according to the present invention is characterized in that it is constituted as follows to solve the above problems.

[1] a pretreatment step of preparing a metal tile material whose surface has been cleaned by performing cleaning on a metal plate processed into a desired shape and dimensions; A painting step of obtaining a primary working tile by laminating a base layer on the surface of the tile material by performing ordinary spray painting or electrodeposition coating on the tile material whose surface has been cleaned in the pretreatment step; A digital flatbed printer, comprising: a designing step of obtaining a second processing tile by laminating a pattern layer on a base layer of a first processing tile; By placing a secondary processing tile in a clean room or chamber that can control the environment for a certain period of time, it is possible to cure the base layer and the pattern layer, as well as to increase the bonding strength between the surface of the tile material and the base layer and the pattern layer Setting) step; And a coating step of applying a coating agent on the pattern layer and the base layer of the secondary working tile and laminating the decorative protective layer to obtain a fully processed metal tile.

[2] The method according to the above [1], wherein the secondary processing tile is ultrasonically cleaned in a state in which the secondary processing tile is immersed in the cleaning liquid at 50 to 60 ° C for 30 to 90 seconds between the patterning step and the settling step or between the settling step and the coating step Wherein the cleaning step further comprises a purifying step of removing foreign matter adhered to the secondary processing tile.

[3] The method according to the above [2], wherein, in at least one of the pre-processing step, the coating step and the designing step, cleaning is performed on the tile material or the primary processing tile or the secondary processing tile, And a drying treatment is carried out.

[4] The method according to the above [3], wherein the coating step is carried out at a temperature of 35 to 45 DEG C for 30 to 90 seconds containing color particles having a diameter of 10 mu m or less selected from pigments, dyes and colored synthetic resin particles, Wherein the step of forming the metal tile is carried out by applying the composition on the pattern layer.

[5] The method according to the above [4], wherein, as a subsequent step of the coating step, the fully processed metal tile is immersed in water at 40 to 60 DEG C for 10 to 20 seconds to increase the bonding strength between the base layer and the pattern layer and the protective layer Further comprising a stabilization step and a drying step of evaporating moisture from the fully processed metal tile by hot air at 70 to 90 占 폚.

In the method of manufacturing a decorative metal tile according to the present invention, a metal plate serving as a material of a metal tile is washed and dried in a pretreatment step, and spray coating or electrodeposition coating is performed on the surface of the metal plate in a subsequent coating step, Transparent), the bond strength between the base layer and the metal sheet is improved as compared with the conventional case. Therefore, the problem of peeling off the background layer, which is one of the problems in the prior art, can be solved.

In addition, in the present invention, by placing a base layer and a pattern layer on a metal plate one after another, and thereafter placing in a clean room or a chamber capable of controlling the environment for a predetermined time (for example, 24 hours) The bonding strength between the metal plate, the base layer and the pattern layer can be further improved while the base layer and the pattern layer are simultaneously cured. Therefore, peeling of the base layer can be further suppressed.

In addition, in the present invention, since the coating material containing the color particles is applied on the base layer and the pattern layer to form the decorative protective layer, the three layers are used for the collaboration so as to have a much stronger and more colorful feel and impression can do.

According to the present invention, since the pattern layer is formed by the ink jet type digital flat panel printer, it is possible to realize a high quality pattern on the surface of the metal plate without depending on the size of the metal plate. There is an advantage that the disposal problem does not occur fundamentally.

In addition, in the present invention, the stabilization step of putting the metal tile having the decorative protective layer formed thereon for a predetermined time (for example, 10 to 20 seconds) in water at 40 to 60 캜 is carried out, Can be sufficiently increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a working process diagram for explaining a manufacturing process of a decorative metal tile according to an embodiment of the present invention; FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving it will be apparent from the accompanying drawings and the embodiments described below.

However, the present invention is not limited to the following embodiments, but may be embodied in various forms. Therefore, the following embodiments are provided only for completeness of disclosure of the present invention, and are provided to fully disclose the scope of the present invention to a general technician in the technical field of the present invention, and the present invention is defined only by the claims .

The terminology used herein is for the purpose of illustrating the embodiments and is not intended to limit the present invention. Accordingly, singular forms include plural forms unless otherwise specified.

As used herein, "comprises" and / or "comprising " does not exclude the presence or addition of one or more other elements in addition to the stated element.

Also, throughout the specification, like reference numerals refer to like elements.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Also, predefined terms are not ideally or excessively interpreted unless expressly defined otherwise.

Terms such as " lower ","lower"," upper ","upper", etc. indicating positional relationships in space should be understood as terms including directions in the drawings, do. For example, when reversing the top and bottom of the elements shown in the figures, the elements described as "below" other elements may be placed "above" Thus, the exemplary term "below" may include both downward and upward directions.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiment

FIG. 1 is a flowchart illustrating a manufacturing process of a decorative metal tile according to an embodiment of the present invention.

As shown in FIG. 1, in the method of manufacturing a decorative metal tile according to an embodiment of the present invention, the work process is performed in the order of pre-processing → painting → painting → coating → coating. Further, although not shown in Fig. 1, as a subsequent step of the coating step, it further includes a stabilization step and a drying step.

It is also preferable that foreign matter, which may be adhered to the surface (base layer and pattern layer) of the metal tile being processed, between the patterning step and the fixing step or between the fixing step and the coating step, And then performing a cleaning step of removing by ultrasonic cleaning.

First, in the pretreatment step, a metal plate processed into a desired shape and dimensions is cleaned to prepare a metal tile material 10 whose surface has been cleaned.

As the metal plate, a light metal plate such as an aluminum plate, a steel plate, or various alloy plates may be used, and various mechanical processes such as sheet metal, press, punching and the like may be applied so that the metal tile material 10 has a desired shape and dimensions. Further, in order to obtain a smooth surface, the surface of the metal plate may be polished. On the other hand, the metal plate may be made of a casting. In this case, a metal plate having a unique shape that can not be obtained by mechanical processing can be obtained.

The cleaning of the metal sheet can be accomplished by air jetting, cleaning liquid jetting, solvent jetting, ultrasonic cleaning, scrubbing, etc., through which cleaning is carried out from the surface of the metallic tile material 10, Removal of foreign matter and degreasing treatment are performed.

Next, as a subsequent step of the pretreatment step, a painting step is carried out. Spray coating or electrodeposition coating is applied to the tile material 10 whose surface has been cleaned, and a thin base layer 20 is formed on the surface of the tile material 10 in the coating step. The base layer 20 may be colored or may be colorless and transparent. The thickness of the base layer 20 is 2 to 50 占 퐉, preferably 5 to 40 占 퐉.

Next, the primary processing tile A having a structure in which the base layer 20 is laminated (formed) on the surface of the metal tile material 10 is transferred to the next step of the designing step, The pattern layer 30 is formed (laminated) on the base layer 20 of the primary processed tile A. As an example of an ink jet type digital flatbed printer, a flatbed printer capable of printing while conveying an object having no flexibility in a horizontal direction is known as a registered patent No. 10-877899. In the designing step, the image data scanned by the scanner with the pattern, the picture or the character, etc. stored in the computer, and the image data stored in the memory can be transferred to the digital flatbed printer and output. Metal tiles can be produced quickly even in small quantities. As described above, according to the present invention, since the pattern layer 30 is formed by a single printing operation by the ink jet type digital flatbed printer, not only the printing quality is excellent but also the uniform quality can be maintained and the defective rate can be remarkably reduced. Further, according to the present invention, it is possible to immediately switch to a small quantity production or a mass production depending on the demand, and in particular, in the case of small quantity production of various kinds of products, market competitiveness can be provided.

Next, the secondary processing tile B having the structure in which the base layer 20 and the pattern layer 30 are sequentially layered on the surface of the tile material 10 proceeds to the subsequent step of setting. By leaving the secondary processing tile B for a predetermined time in the room (for example, inside a clean room or the chamber) capable of adjusting the environment in the setting step, for example, for 8 to 24 hours, The layer 20 and the pattern layer 30 are integrally cured to increase the bonding strength between the surface of the tile material 10 and the base layer 20 and the pattern layer 30. [

A coating step is then performed in which a coating containing colored particles 41 is applied over the patterned layer 30 and the underlying layer 20 of the secondary working tile B to form a decorative protective layer 40, As an example of the method, a ceramic coating or a Teflon coating method is preferred. The size of the color particles 41 is 10 μm or less, preferably 1 μm or less, and more preferably 10 nm or less in average particle diameter (diameter). Examples of the color particles 41 include pigments, dyes, colored synthetic resin particles, and the like. Further, it may vary depending on the concentration of the coating agent (liquid phase) to be used, but it is generally preferable to use the coating agent at a concentration of about 500 ppm based on the coating agent concentration of 40 ml / L. The coating step is preferably carried out at 35 to 45 DEG C for 30 to 90 seconds. If the thickness of the decorative protective layer 40 is out of the above range, the thickness of the decorative protective layer 40 becomes too thin or too thick, so that a product can not be produced as planned.

Next, although not shown in Fig. 1, the stabilization step and the drying step are carried out in order after the execution of the coating step.

The stabilizing step is a step of increasing the bonding strength between the base layer 20, the pattern layer 30 and the decorative protective layer 40. The fully-processed metal tile C, in which the decorative protective layer 40 is laminated, For example, by immersing in water at 40 to 60 DEG C for 10 to 20 seconds. When the decorative protection layer 40 is carried out outside the above-described range, the bonding strength between the base layer 20 and the pattern layer 30 is lowered due to improper softening or curing, .

After the stabilization step, a drying step is performed to remove moisture from the fully processed metal tile (C). The drying step may be carried out by a natural drying method, but forced drying by hot air is preferred for reasons such as shortening of time. The temperature of the hot air is preferably in the range of 70 to 90 DEG C, and if it is outside this range, problems such as softening of the decorative protective layer 40 or an increase in drying time occur.

10 ... Metal tile material (metal plate)
20 ... Base layer
30 ... Pattern layer
40 ... Decorative protective layer
41 ... Color particle
A ... Primary working tile
B ... Secondary processing tile
C ... Completely processed metal tiles

Claims (5)

A pretreatment step of preparing a metal tile material whose surface has been cleaned by performing cleaning so as to remove foreign matter and degrease treatment on a metal plate processed into a desired shape and dimensions;
A painting step of applying a spray coating or an electrodeposition coating to the tile material whose surface has been cleaned in the pretreatment step to obtain a primary working tile by laminating a base layer having a thickness of 2 to 50 mu m on the surface of the tile material;
A digital flatbed printer, comprising: a designing step of obtaining a second processing tile by laminating a pattern layer on a base layer of a first processing tile;
By placing the secondary working tile in an environmentally adjustable clean room or chamber for 8 to 24 hours, it is possible to cure the ground and pattern layers and to increase the bond strength between the surface of the tile material and the ground layer and the pattern layer A settling step; And
A coating step of applying a coating agent on the pattern layer and the base layer of the secondary working tile and laminating the decorative protective layer to obtain a fully processed metal tile;
And,
By ultrasonically cleaning the second machining tile in a state of being immersed in a cleaning liquid of 50 to 60 占 폚 for 30 to 90 seconds between the patterning step and the settling step or between the settling step and the coating step, A purification step for removing foreign matters is carried out,
In at least one of the preprocessing step, the painting step and the designing step, cleaning and drying processing is performed on the tile material or the primary processing tile or the secondary processing tile before the transfer to the subsequent step,
The coating step is carried out by applying a coating agent of 35 to 45 캜 containing color particles of 1 탆 or less in diameter selected from pigments, dyes and colored synthetic resin particles on the base layer and the pattern layer for 30 to 90 seconds,
As a subsequent step of the coating step, a stabilizing step of immersing the fully processed metal tile in water at 40 to 60 DEG C for 10 to 20 seconds to increase the bonding strength between the base layer and the pattern layer and the protective layer, Wherein the drying step further comprises the step of evaporating moisture from the fully processed metal tile by means of the drying step. delete delete delete delete

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