KR101468695B1 - Ceramics surface pattern forming method using laser beam and cover coat - Google Patents

Abstract

The present invention relates to a ceramics surface pattern forming method using a laser beam and a cover coat for ceramic (earthenware or enamel) surface pattern formation. According to the present invention, a high-resolution color pattern provided by a digital image is color-separated and an unnecessary part other than the pattern color-separated by the laser beam is removed from a pigment layer coated on the cover coat on transfer paper so that the color-separated pigment layer is laminated. According to the present invention, the high-resolution ceramics surface pattern can be formed to be close to natural colors and at a low cost and with ease. An image of a pattern to be formed on the ceramic surface is acquired as digital information and then an image acquired by using predetermined digital signal processing means is separated into four primary colors for primary color image generation. The liquid cover coat is applied to and dried on the four sheets of starch-coated transfer paper, and then the pigment layers corresponding to the four primary colors are applied onto the respective cover coats. Then, the laser beam is used to remove the pigment layer at a part other than the selected color. In this state, the four cover coats from which the transfer paper are removed are laminated, attached to the ceramics surface and sintered for ceramics surface pattern formation.

Description

[0001] The present invention relates to a ceramic surface pattern forming method using a laser beam and a cover coat,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a ceramic surface pattern using a laser beam and a cover coat for forming a surface pattern of ceramics (porcelain or enamel), and more particularly, Resolution color pattern is separated into primary colors, and the pigment layer coated on the transfer paper is removed by a laser beam to remove unnecessary portions other than the original pattern, and then the primary pigment-decomposed pigment layer is laminated. To provide a method of forming a ceramic surface pattern using a laser beam and a cover coat capable of forming a ceramic surface pattern having a high resolution close to that of the ceramic surface.

Generally, there are many ways to form patterns on ceramics or enamel surfaces. Among them, the most typical method is to paint the surface of ceramics using a brush or brush and then sinter, The ink is then printed on the surface using a screen and sintered.

The method of forming the pattern using the brush as described above is to classify the patterns into patterns by manually setting the pattern of the pottery by hand, to apply the pigment glaze according to the set pattern on the surface of the ceramics or enamel, ) Over a period of time.

Through this process, the dried porcelain or enamel is sintered and finished.

However, since the method of forming a screen is used in the production of authentic ceramics such as artwork, it is not suitable for mass production in modern times, and thus, a method according to a silk screen method has been recognized as a conventional method until recently.

The method of forming the pattern according to the silk screen method includes a manufacturing process of a transfer paper for manufacturing a transfer paper for a ceramic pattern to be formed on the surface of a ceramic, a transfer film of a transfer paper being peeled off, And a firing step of firing the transferred ceramics at a high temperature.

In the manufacturing process of transfer paper, the originals of original, selected or selected patterns are color-separated by primary color decomposition technique, film is produced for each primary color decomposed and a screen printing plate is produced for each primary color. For example, if a four-color decomposition of a natural color pattern is performed, four screen printing plates are produced. By using the prepared screen printing plate, the number of the screen printing plates is overprinted on the transferring paper to produce the transferring paper for ceramics.

In the pattern transfer process, a synthetic resin material is applied and coagulated to the overprinted transfer paper as described above to coat the overlapping printed pigment in advance to adhere to the coating film, and the coating film of the coated transfer paper is separated to attach the coating film to the surface of the ceramic The process of transferring the pigment. Then, the ceramics are baked at a high temperature so that the pigment is baked on the surface of the ceramics.

As described above, the method of forming a pattern of ceramics using a transfer paper is costly in manufacturing a transfer paper, and the resolution of the pattern (about 140 / dpi) is reduced. In recent years, a device using offset technology has been developed and attracts attention, but it has not been utilized due to heavy equipment cost and low efficiency.

In order to solve the above-described problem, pigment powder of a corresponding color is applied to a plurality of transfer paper prints each having a toner on its surface, and then subjected to a heat treatment so as to correspond to a desired pattern by the adhesiveness of the toner in the heated portion (Japanese Patent No. 10-0275190), a method of forming a porcelain or enamel surface pattern using a laser printer toner to provide a clearer pattern suitable for producing a small quantity of various items through a pigment deposition process has been proposed.

This is a process of acquiring an image of a pattern to be formed on the surface of a porcelain or enamel as digital information, decomposing the image obtained by using any digital signal processing means into a predetermined number of primary colors, and printing the image on a transfer sheet A process for forming a glaze powder of a specific primary color on a fixing surface of a toner having a viscosity so that the toner adhered to the printing surface of the transfer sheet has viscosity and a glaze powder A step B for bonding the print surface of the transfer sheet coated with the transfer sheet and the surface of the transfer object using a specific adhesive and then removing the paper component of the transfer sheet and a step C for sintering the transfer target body at the melting point of the dye glaze, Lt; / RTI >

However, the above method is disadvantageous in that it is necessary to produce an inverted image for each chromaticity, and it is difficult to apply to a curved surface.

In addition, toxic chemicals such as adhesives can be used, which can harm the human body.

Meanwhile, as a means for solving the problem of the above method, a method of forming a pattern of a porcelain or bamboo plate surface using a laser printer toner, which has been applied and registered by the present applicant (Patent Application No. 10-0466835) has been proposed.

A method of forming a pattern on a porcelain or enamel surface using the laser printer toner comprises the steps of acquiring an image of a pattern to be formed on the surface of a porcelain or enamel with digital information, And a step of printing on a transfer sheet for each chromaticity of the separated color, the method comprising the steps of: heating a laser printer toner (toner) fixed on a printing surface of a transfer sheet to display image information, A second step of applying a glaze powder of a specific primary color to a fixing surface of a toner having a viscosity through a first process and a first process, a third process of covering a transparent cover with a cover coat, a third process of covering the transparent cover with a cover coat, A fourth process of laminating the coated transparency with the transfer sheet coated with the glaze powder of the second process, laminating A fifth step of separating the transferred paper and the transparent paper in water to separate the paper part of the transfer paper, the separated transparent paper of the fifth step is dried, and the transfer paper to which the other color is fixed is transferred again to the transparent paper A seventh process of repeating the sixth process for the required number of colors, a seventh process of separating the transparent material of the third process from the result of the seventh process, a seventh process of repeating the sixth process for the required number of colors, And a ninth step in which the paper component of the cover paper is removed from the surface of the transfer material, and the result of the ninth and ninth processes is brought into close contact with the surface of the transfer object to sinter the transfer object at the melting point of the dye glaze. It is possible to reduce manufacturing time and cost by including a very simple process of performing laminating, and it is possible to form a pattern without using an adhesive, It can be used in face-to-face carcass, printing is possible in forward direction, and high-resolution pattern can be obtained, so that pattern can be formed on the surface of porcelain or enamel.

However, in the case of pre-registered patents, it takes a long time to work, a lot of transfer paper is consumed, and there is a limit to increase resolution.

On the other hand, in the case of a toner for laser printing which is generally used although it is not easy to form a ceramic surface pattern, a coating layer is formed of wax and charge control agent and a toner deposition resin in a weight ratio of 50 to 90% The coating layer formed on the surface of the dye melts and is deposited on the printing paper. The function of the resin is to maintain the patterns deposited on the printing paper for a long period of time It is.

Accordingly, the inventors of the present invention paid attention to the feature of the formation of the ceramic surface pattern, that is, by substituting the function of the toner deposition resin by melting through the starch coating layer of the transfer paper and the high temperature firing immediately after the transferring, (Patent Application No. 10-0874493) filed a patent application for a natural ore pigment toner for a laser printer capable of directly printing a color pattern on a transfer sheet without disassembling the high resolution color pattern into a primary color and a method of manufacturing the same. Forming a charge control agent (CCA) coating layer on the surface of the ore pigment particles; Forming a wax coating layer on the surface of the charge control layer; Forming an outer coating layer on the surface of the wax coating layer; When natural ore pigment toner is produced through such a process, it is possible to easily transfer a pattern of a high resolution close to natural color immediately on the formation of a ceramic surface pattern, but also to manufacture a small amount of natural ore pigment toner It is difficult to operate a high-priced production facility for producing a conventional laser print toner, resulting in an economical efficiency and an increase in production cost.

KR 100275190 B1 2001.01.15. KR 100466835 B1 2001.01.15. KR 100874493 B1 2008.12.18

Accordingly, the inventor of the present invention has researched and developed the present invention in order to solve various problems such as a complicated work process in the conventional ceramic surface pattern forming method, which requires cost increase and expensive equipment, A method of separating unnecessary portions with a laser beam in a state in which a pigment layer corresponding to each primary color separated is applied to a cover coat and then laminating them is carried out by a laser printer and a natural ore So that the surface of the ceramic surface can be formed without producing a pigment toner. The present invention has been completed based on the technical problem.

According to the present invention, in a method of forming a ceramic surface pattern using a laser beam and a cover coat, an image of a pattern to be formed on a ceramic surface is obtained as digital information, A liquid color cover coat is applied to four starch-coated transfer paper, and then a pigment layer corresponding to four primary colors is coated on each cover coat. Then, And then sintered at a melting point of the dye glaze to bond the surface of the cover coat to the surface of the ceramics to provide a ceramic surface pattern molding method.

The method of forming a ceramic surface pattern using a laser beam and a cover coat provided in the present invention is a method of forming a ceramic surface pattern using a laser beam and a cover coat by decomposing a high resolution color pattern provided in a digital image into primary colors, And a method of laminating a pigment layer separated from a primary color after removing unnecessary portions other than the primary color layer can be easily formed at a low cost by forming a ceramic surface pattern with a high resolution close to that of a natural color. It is possible to form a high resolution glaze pattern on the ceramic surface close to the primary color.

1 is a flowchart showing a method of forming a ceramic surface pattern using a laser beam and a cover coat according to the present invention.
FIG. 2 is an enlarged cross-sectional view showing a state in which a cover coat and a pigment layer are formed on a transfer paper in the present invention
3 is an enlarged cross-sectional view showing a state in which a pigment layer is laminated in a state in which a transfer paper is separated in the present invention

Hereinafter, an embodiment of a ceramic surface pattern forming method using the laser beam and the cover coat provided in the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a flowchart showing a ceramic surface pattern forming method using a laser beam and a cover coat according to the present invention.

A method of forming a ceramic surface pattern using a laser beam and a cover coat provided in the present invention is a method of forming a ceramic surface pattern on a ceramic surface by acquiring an image of a pattern to be formed on a ceramic surface by digital information, ), C (blue), M (red), and Y (yellow) to generate a primary color image; A second step of applying a liquid cover coat to four starch-coated transfer paper and drying the same; (3) applying a pigment layer of K (black), C (blue), M (red) and Y (yellow) corresponding to the primary color image decomposed in the first process onto the cover coat applied to the four transfer sheets, A process; A fourth step of removing portions other than the selected color by using a laser beam on the pigment layer on the upper side of each cover coat dried by the third process; A cover coat on which a C pigment layer coated with a K pigment layer and a C pigment layer on which a transfer paper has been separated by water treatment, a cover coat on which an M pigment layer is coated, a Y pigment layer coated on the K pigment layer, A fifth step of sequentially laminating the coated cover coat; A sixth step of cutting into various shapes after the fifth step; A seventh process of separating the lowermost transfer paper adhering to the K pigment layer by water treatment and adhering it to the ceramic surface; And a seventh step of sintering the resultant. The method of forming a ceramic surface pattern using a laser beam and a cover coat according to the present invention will now be described in more detail.

First Course

The creator obtains the image of the pattern to be formed on the ceramic surface such as porcelain or enamel as digital information. In this case, a method of acquiring a digital image includes a method of photographing an image of a pattern with a digital camera, a method of scanning a developed film using a film digital scanner and scanning with a conventional camera, A method of scanning a developed image using a digital scanner, or the like.

Digital image information obtained by the above method is input to a computer, and the computer displays input image information on a CRT so that a manufacturer can confirm a desired pattern. At this time, when the user wants to edit the image displayed on the CRT, the user manipulates the keyboard to display the desired image

When the desired image is displayed through the above process, the original color decomposition method is applied to decompose the image into four colors or as many as necessary.

In the present invention, it is divided into four colors, namely K (black), C (blue), M (red), and Y (yellow).

The color thus decomposed is converted into the machining data of a laser beam machining apparatus to be described later and is provided.

The second course

In the second process, a liquid cover coat 20 is applied to the transfer paper 10 coated with starch and dried. The cover coat 20 is a typical synthetic resin used in general ceramics and preferably has a thickness of 0.1 to 0.3 mm. When the cover coat 20 is thinly coated to a thickness of 0.1 mm or less, the transfer sheet may be torn during the peeling process. When the cover coat 20 is thickly coated to a thickness of 0.3 mm or more, This address may cause a phenomenon, so be careful.

The application of the cover coat 20 to the transfer sheet 10 is performed on the four transfer sheets 10 so as to correspond to the four primary colors.

Course 3

The third process is a process of forming the pigment layer 30 on the cover coat 20 coated and dried in the second process.

In the present invention, pigments of K (black), C (blue), M (red), and Y (yellow) corresponding to the four primary colors are provided, respectively. These pigments use natural ore pigment particles (See Fig. 2)

In the case of a pigment, adhesion to the cover coat 20 is difficult due to its dryness. Therefore, the cover coat 20 is adhered to the cover coat 20 using an adhesive. A preferable example of the adhesive is a liquid cover coat or a pigment exclusive gel. Purchase and use the pigment-specific gel as the imported product, product name 80-820-MS manufactured by D.C.FERROW, Germany.

The mixing ratio of the pigment to the cover coat or the pigment-exclusive gel is set to be 7: 5 by weight. The thickness of the pigment layer 30 is preferably 0.05 to 0.1 mm.

Course 4

The fourth step is a step of processing the pigment layer 30 formed on the cover coat 20 in the third step. The processing of the pigment layer 30 may be performed through a laser beam processor. If the processed data corresponding to the selected color among the images decomposed into the four primary colors through the computer in the first process is supplied to the laser beam processor, The beam machining apparatus performs a work for removing a portion outside the region corresponding to the color.

In the above-described operation, the pigment layers of K (black), C (blue), M (red), and Y (yellow) corresponding to the four primary colors may be sequentially performed.

In the case of the laser beam machining apparatus, in the present invention, a laser beam machining apparatus of CO2 series is used, and a laser having a wavelength of 1064 μm is used.

Fifth Course

The fifth process is a process in which the pigment layer 30 is processed by using a laser beam processor in the order of K (black), C (blue), M (red), and Y (yellow) to be.

The lamination method is performed by a water treatment method. First, when the transfer sheet 10 having the C pigment layer bonded thereto is immersed in water or sprayed, the surface of the transfer sheet 10 coated with starch coating The cover coat 20 coated with the C pigment layer is separated from the transfer paper 10 and the separated cover coat 20 is laminated so as to overlap the K pigment layer.

Then, the cover coat 20 is separated from the transfer paper 10 having the M pigment layer bonded thereto and laminated on the C pigment layer, and the cover coat 20 is separated from the transfer paper 10 to which the Y pigment layer is bonded M pigment layer (see Fig. 3)

At this time, the four primary colors are combined in the plane view, and the first image is provided as it is.

Course 6

In the sixth step, the pigment layers 30 are laminated as described above, and cut into various shapes corresponding to the size of the ceramic surface.

Course Seven

The transfer paper 10 having the K pigment layer bonded in the cut state as described above is separated by water treatment as in the fifth process, and the cover coat 20 having the K pigment layer is bonded to the ceramic surface. At this time, a separate adhesive is not used, and adhesion is naturally performed by moisture.

Eighth course

The eighth process is a process of sintering the product obtained through the seventh process. At this time, the sintering is performed at the melting point of the pigment glaze (pigment layer).

When the sintering is performed as described above, the pigment layer composed of natural ore pigment particles is fused to the ceramic surface, and the cover coat is burned away.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

10: Transfer paper
20: Cover coat
30: pigment layer

Claims (1)

A method for forming a ceramic surface pattern comprising:
After obtaining the image of the pattern to be formed on the ceramic surface by digital information, the image obtained by using any digital signal processing means is decomposed into K (black), C (blue), M (red), Y A first step of generating a primary color image;
A second step of applying a liquid cover coat to four starch-coated transfer paper at a thickness of 0.1 to 0.3 mm and drying the same;
(3) applying a pigment layer of K (black), C (blue), M (red) and Y (yellow) corresponding to the primary color image decomposed in the first process onto the cover coat applied to the four transfer sheets, A process;
A fourth step of removing portions other than the selected color by using a laser beam on the pigment layer on the upper side of each cover coat dried by the third process;
A cover coat on which a C pigment layer coated with a K pigment layer and a C pigment layer on which a transfer paper has been separated by water treatment, a cover coat on which an M pigment layer is coated, a Y pigment layer coated on the K pigment layer, A fifth step of sequentially laminating the coated cover coat;
A sixth step of cutting into various shapes after the fifth step;
A seventh process of separating the lowermost transfer paper adhered to the K pigment layer by water treatment and adhering to the ceramic surface;
And a seventh step of sintering the resultant. The method for forming a ceramic surface pattern using a laser beam and a cover coat according to claim 1,

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