KR20190083798A - Method for manufacturing painted ceramic - Google Patents

Abstract

Disclosed is a manufacturing method of colored ceramics. The manufacturing method of ceramics of the present invention comprises: a molding step which molds a ceramic; a biscuit-firing step which heat-treats to maintain a shape of the ceramics; a first water repellent treating step which coats a water repellant agent on part of the ceramic; a first glazing step which coats a first glaze to provide a first color on a first area except the part having the water repellent agent coated thereon; a first re-firing step which heat-treats the ceramic to evaporate the coated water repellent agent and fire the first glaze; a second glazing step which coats a second glaze to provide a second color on any second area except the first area; and a second re-firing step which heat-treats to fire the second glaze and sinter the ceramics. Accordingly, the present invention provides a manufacturing method of colored ceramics, which provides colors double or triple or more in all parts of the ceramics regardless of a shape of the ceramics and flat surfaces and curved lines through repetition of processes of dividing areas by the water repellent agent, coating glazes and heat-treating.

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing ceramics,

The present invention relates to a method for producing colored ceramics, and more particularly, to a method for manufacturing ceramics capable of imparting various colors and patterns through repetition of the firing process.

Ceramics refers to materials and products obtained by combining ceramics and porcelain to form a clay or clay-like material in a plastic state to give rigidity to the material and finally to firing at a sufficiently high temperature.

Factors affecting the final product of ceramics include the major components of the clay-feldspar-silica, the type of glaze used, the pigment, the firing temperature and the calcination atmosphere.

The glaze is a thin glass layer which is adhered to the surface of ceramics. It reduces the water absorption of the ceramics, and expresses aesthetics and improves the strength of the ceramics. The purpose of applying the glaze is not only to make the product beautify by giving gloss to the surface but also to increase the strength and to prevent the surface from becoming dirty by making the surface rough. It is also beneficial for practical purposes in that it removes the absorptivity and increases the resistance to water and chemicals.

In general, in order to impart color to ceramics, a coloring material is mixed with the glaze, and then the mixture is baked on a rough baked and then baked. However, when a colored glaze is coated on a ceramics, it is limited in coloring various patterns because it is possible to use the glaze as a different glaze on the inside, the outside, the upper side or the lower side due to the characteristic of coating through the method of immersing the ceramics in the glaze.

On the other hand, there is a method of painting colored pigments in order to color a variety of patterns, but when using pigments, if chromated pigments are used, even if pigments are colored, Can not be shown. Therefore, there is a restriction that only the white substrate can be used for coloring. In addition, there is a problem that brush marks remain in the process of applying the pigment.

Accordingly, there is a need for a method for manufacturing ceramics that can be colored using a colored glaze, but can express various colors and patterns.

Korean Patent No. 10-1308525 (the name of the invention: a method for producing various colors of ceramics and ceramics produced thereby)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a colored ceramics capable of dividing a region using a water repellent agent and applying various colors through repetition of glaze coating and heat treatment. .

According to an aspect of the present invention, there is provided a method of manufacturing a colored ceramics, comprising: forming a ceramics using a substrate; A preliminary step of performing a heat treatment so that the shape of the ceramics is maintained; A first water repellent treatment step of applying a water repellent agent to a part of the ceramics; A first metering step of coating a first glaze so that a first color is imparted to a first region other than the portion to which the water repellent agent is applied; A first chaebol step of evaporating the applied water repellent agent and heat-treating the ceramics so that the first glaze is baked; A second metering step of coating a second glaze so that a second color is applied to a second area other than the first area; And a sintering step of heat-treating the ceramics so as to be sintered.

The method of manufacturing a colored ceramic according to an embodiment of the present invention may further include a second water-repellent treatment step of applying a water-repellent agent to a portion coated with the first glaze after the first step.

In the second water repellent treatment step, a water repellent agent may be further applied to a third region to which a third color is to be imparted.

The method of manufacturing a colored ceramics according to an embodiment of the present invention includes: a second chaebol step of heat-treating the ceramics so that the second glaze is baked after the second metering step; A third water repellent treatment step of applying a water repellent agent to a portion coated with the first glaze and the second glaze; And a third metering step of coating a third glaze so as to impart the third color to the third region other than the first region and the second region.

Further, the second metering step may coat the second glaze of the transparent glaze so that the second area is provided with the hue of the substrate.

In the first chaebol step, the ceramics may be put into a kiln and heat-treated at 950 ° C to 1000 ° C.

In the sintering step, the ceramics may be placed in a kiln and heat-treated at 1200 ° C to 1300 ° C.

In the forming step, the ceramic can be molded using a chromatic base material.

Thus, by repeating the process of glazing coating and heat treatment by dividing a region using a water-repellent agent, coloring ceramics capable of giving a double or triple or more color to all portions of the horizontal and vertical irregularities Method.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart illustrating a method of manufacturing a colored ceramic according to an embodiment of the present invention;
FIG. 2 is a view for explaining region classification of ceramics according to an embodiment of the present invention; FIG.
FIG. 3 is a flow chart illustrating a method of manufacturing a colored magnet according to an embodiment of the present invention,
4 is a view for explaining region classification of ceramics to which three or more colors are given according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. The embodiments described below are provided as examples for allowing a person skilled in the art to sufficiently convey the ideas of the present invention. The present invention is not limited to the embodiments described below and may be embodied in other forms.

FIG. 1 is a flow chart for explaining a method of manufacturing a colored ceramics according to an embodiment of the present invention, and FIG. 2 is a view for explaining region classification of a ceramics C according to an embodiment of the present invention .

The method for producing colored ceramics of the present invention is provided for dividing a region using a water-repellent agent and imparting various colors through repetition of glaze coating and heat treatment.

To do this, the ceramics C may be shaped into various types of ceramics (S110). It can be molded using various colors of base materials.

Then, the preliminary process for performing the heat treatment may be performed so that the molded shape of the ceramics C is maintained (S120). For example, the ceramics (C) can be put into a kiln and heat-treated at about 800 ° C to 900 ° C for about 8 hours to 10 hours. Through this priming process, the physical strength of the ceramics (C) is increased, the porosity and the absorbency are increased, and the glaze is easily applied.

After the priming process, a first water repellent treatment step of applying a water repellent agent to a part of the ceramics C may be performed (S130). For example, the water repellent agent can be applied by using a brush, and a part of the ceramics coated with the water repellent agent is in a state in which water is not absorbed, and the glaze is not absorbed.

Incidentally, the water repellent of the present invention may be used in combination with a wax resist, and only a wax resist may be used.

Then, a first metering step for coating the first glaze may be performed (S140). In the first metering step, the uncolored ceramics (C) can be coated through immersion in the first glaze. The first glaze can be coated only in a region where water other than the portion to which the water repellent agent is applied is absorbed. In the present invention, a portion coated with the first glaze is referred to as a first region A1. The first color of the first glaze can be given to the first region A1.

For example, a chromatic color may be expressed by mixing a coloring material in the first glaze. As shown in FIG. 2, the first area A1 of the edge portion of the ceramic bowl may be coated with the first glaze of dark color.

After the first metering step, a first chaebol step may be performed in which the ceramic material C is thermally treated to evaporate the water repellent agent applied to the first region A1 (S150). In addition, the first glaze can be solidified through the first chaotic step to be fired in the pottery (C).

For example, when the pottery (C) is enamelled by putting it in a kiln at about 950 ° C to 1000 ° C, the water repellent agent is evaporated and fired, and the glaze is baked to such an extent that the glaze is not completely baked and hardened, A1), the color of the first glaze can be expressed.

After the first chaebol step, a second metering step may be performed to coat the second glaze so that the second color A2 is applied to any second area A2 other than the first area A1 (S160).

For example, the second glaze can be coated through the process of immersing the pottery C in the second glaze of the second color. As described above, since the portion coated with the first glaze is fired to a degree that the glaze is hardened, the other glaze is not absorbed, and only the second region A2, in which moisture can be absorbed in addition to the first region A1, Is coated.

2, a dark color is coated on the first area A1 of the edge of the ceramics C and a second glaze of a bright color is coated on the second area A2 of the center of the ceramics C. have.

Incidentally, between the first sub-step and the second sub-step, a second water repellent treatment step may be carried out in which the water repellent agent is applied to the portion coated with the first glaze. However, as described above, if the firing is performed at a temperature between 950 ° C. and 1000 ° C. in the first chaebol stage, the first glaze is already hardened to a half, so that the second glaze does not penetrate well, so coloration can be distinguished without a separate water repellent process. However, even if it is hardened, the first glaze may slightly come out if it is not subjected to the water repellent treatment. Therefore, if it is desired to give a color that is completely opposite to the second region A2, the second water repellent treatment step may be performed.

In the case where the second water repellent treatment step is included, a water repellent agent may be further applied to the portion to which the third color is to be imparted, and will be described later in more detail with reference to FIG. 3 to FIG.

When the water repellent agent is applied to a portion to which the third color is to be imparted, only a part of the region other than the first region A1 is the second region A2, 2 Glaze may be coated. This will be described in more detail with reference to FIG. 3 to FIG.

As shown in FIG. 2, when two colors are produced so as to be expressed, the second glaze may be coated over the entire area other than the first area A1 coated with the first glaze.

On the other hand, the second glaze may be prepared as a transparent glaze. For example, a transparent glaze can be coated on the ceramics C in the second metering step such that the color of the substrate is represented by the second color. Accordingly, various colors of substrates may be used to form the second color when forming the ceramics.

After the second metering step, a sintering step may be performed in which the second glaze is baked and the ceramics (C) are finally sintered so as to be sintered (S170).

In the sintering step, unlike the first chaebol step, the ceramics (C) are put into a kiln at about 1200 ° C to 1300 ° C and heat-treated. Then, the first glaze and the second glaze are completely hardened and can be tightly fixed to the pottery C, and finally sintered to gloss the surface to make the product more beautiful, and the strength can be increased and the surface can be smoothed.

If, as described above, the second water repellent treatment step of applying the water repellent agent to the first glaze coated portion is included between the first chaebol step and the second watertight step, through the second chaebol step, The water repellent agent applied in the treatment step will be able to evaporate.

Through this process, the area can be divided using the water-repellent agent, and the process of glazing coating and heat treatment can be repeated, so that any part of the ceramics C can be given two colors.

FIG. 3 is a flow chart for explaining a method of manufacturing a colored pottery to which three or more colors are imparted according to an embodiment of the present invention, and FIG. 4 is a flowchart illustrating a method of manufacturing a colored pottery Is a diagram provided for explaining area classification.

First, as described above, the ceramics C can be formed into various shapes using various colors of base materials (S205).

Then, a preliminary process for performing the heat treatment may be performed so that the molded shape of the ceramics C is maintained (S210). The ceramics (C) can be placed in a kiln and heat-treated at 800 ° C to 900 ° C for 8 hours to 10 hours. Through such a priming process, ceramics become larger in physical strength, porous and watery, and can easily be glazed.

After the priming process, a first water repellent treatment step of applying a water repellent agent to a part of the ceramics C may proceed (S215). In other words, the water repellent agent can be applied to an area other than the first area to which the first color is to be imparted.

 Then, a first metering step for coating the first glaze may be performed (S220). The first porcelain C may be coated in the first glaze by immersing the porcelain C in the first glaze. Then, the first glaze can be coated only in the region where the water-absorbing agent absorbs water other than the coated portion. That is, the first color of the first glaze can be given to the first region A1.

For example, the first glaze may be colored with a colorant mixed therein. As shown in FIG. 4, the first area A1 of the edge of the ceramic bowl may be coated with the first glaze of the first color .

After the first metering step, a first chaebol step may be performed in which the water repellent agent applied to the first zone A1 is evaporated and the ceramics C is heat treated so that the first glaze is baked (S225). The water repellent agent is evaporated and fired and fired to such an extent that the glaze is not completely fired and hardened. As a result, only the first region A1 is filled with the first The color of the glaze can be expressed.

Then, a second water repellent treatment step of applying a water repellent agent to an area other than the second area may be performed (S230).

That is, in the second water repellent treatment step, the water repellent agent may be applied to the first region coated with the first glaze and the third region A3 provided with the third color. For example, as shown in FIG. 4, a water repellent agent may be further applied to the existing first region A1 and the annular third region A3.

Incidentally, in the second water repellent treatment step, the water repellent agent may be applied only to the third region A3. Since the first glaze coated portion is heat-treated at a temperature of 950 ° C to 1000 ° C, as described above, even if the water repellent agent is not applied, the first glaze is already hardened by half, so that the second glaze- The second glaze does not penetrate.

After the second water repellent treatment step, a second metering step may be performed to coat the second glaze so that a second color is imparted to the second area A2 other than the first area A1 and the third area A3 (S235).

Through the process of immersing the pottery C in the second glaze of the second color, the second glaze can be coated. Specifically, since the first area A1 and the third area A3 are coated with the water repellent agent, moisture is not absorbed in the first area A1 and the third area A3, and only the second area A2 is glazed Is coated. As described above, it is not necessary to perform the water repellent treatment in the first area A1.

As a result, as shown in Fig. 4, a first color A1 is coated on the edge of the ceramics C, and a second color is coated on the second annular region of the ceramics C, (A2) may be coated with a second glaze of a second color different from the first glaze.

After the second metering step, a second chaebol step may be performed in which the water repellent agent applied to the first region or the third region is evaporated and the second glaze is fired so as to be fired (S240).

In the second chaebol stage, like the first chaebol, the ceramics C are enamored by putting them in a kiln at about 950 ° C to 1000 ° C. As a result, the color of the first glaze is applied to the first area A1 and the color of the second glaze is applied to the second area A2. As a result, the water repellent agent is evaporated and the glaze is fired to such an extent that the glaze is not completely fired, Can be expressed.

Then, a third water repellent treatment step of applying a water repellent agent to the area other than the third area may be performed (S245).

However, the third water repellent treatment step may be omitted. Since the portion coated with the first glaze or the second glaze is heat-treated at about 950 ° C to 1000 ° C without applying the water repellent agent to the portion coated with the first glaze or the second glaze, the third glaze does not penetrate well, It can be omitted.

On the other hand, in the same manner as the second water repellent treatment step, when the third water repellent treatment step is included, a water repellent agent may be further applied to a portion to which the fourth color is to be imparted. In this case, as compared with the embodiment shown in Figs. 1 and 2, as shown in Figs. 3 to 4, the second chaotic step, the third water repellent processing step, and the third reference step described later are further included. 3 chaebol step, a fourth water repellent treatment step and a fourth hydroponic step to produce ceramics having four colors. Likewise, more than five colors may be assigned.

After the second jugular step or the third water repellent treatment step, a third metering step of coating the third glaze so as to impart a third color to the third area A2 may be performed (S250).

For example, a third glaze can be coated through the process of immersing the pottery C in a third glaze of a third color. Since the first area A1 and the second area A2 are coated with the water repellent agent, the glaze is coated only in the third area A3 where moisture can be absorbed in addition to the first area A1 and the second area A2 . The water repellent treatment may be omitted in the first area A1 and the second area A2.

4, a first color (A1) of the edge of the ceramics (C) has a first color, and a second area (A2) of the center ring of the ceramics (C) , And a third color may be expressed in the remaining third area A3.

The third area A2 may be the entire area other than the first area A1 and the second area A2 coated with the first glaze. However, as described above, in the third water repellent treatment step, the fourth color When the water repellent agent is further applied to the portion to be imparted, as described above, the third boiler step, the fourth water repellent treatment step and the fourth water refining step may be further included.

On the other hand, like the second glaze, the third glaze can be prepared as a transparent glaze. For example, a transparent glaze can be coated on the pottery (C) during the third metering step such that the color of the substrate is represented by a third color.

After the third metering step, a sintering step may be performed in which the third glaze is baked and the ceramics (C) are finally sintered so as to be sintered (S255).

In the sintering step, unlike the chaebol step, the ceramics (C) are put into a kiln at about 1200 ° C to 1300 ° C and heat-treated. Then, the first glaze, the second glaze and the third glaze are completely hardened and can be firmly fixed to the pottery (C), and finally sintered to gloss the surface to make the product more beautiful. have. Further, through the sintering step, the water repellent applied in the third water repellent treatment step will be able to evaporate.

Through this process, it is possible to assign a color to double or triple or more in all parts of the horizontal and vertical irregardless of the shape of the ceramics and the plane curved part.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

C: Ceramics
A1: first region A2: second region
A3: Third area

Claims (8)

A forming step of forming a ceramic using the substrate;
A preliminary step of performing a heat treatment so that the shape of the ceramics is maintained;
A first water repellent treatment step of applying a water repellent agent to a part of the ceramics;
A first metering step of coating a first glaze so that a first color is imparted to a first region other than the portion to which the water repellent agent is applied;
A first chaebol step of evaporating the applied water repellent agent and heat-treating the ceramics so that the first glaze is baked;
A second metering step of coating a second glaze so that a second color is applied to a second area other than the first area; And
And a sintering step of heat-treating the ceramics so as to sinter the ceramics. The method according to claim 1,
Further comprising a second water repellent treatment step of applying a water repellent agent to a portion coated with the first glaze after the first jamming step. 3. The method of claim 2,
Wherein the second water-
Wherein a water repellent agent is further applied to a third region to which a third color is to be imparted. The method of claim 3,
A second chaebol step of heat-treating the ceramics so that the second glaze is baked after the second metering step;
A third water repellent treatment step of applying a water repellent agent to a portion coated with the first glaze and the second glaze; And
Further comprising a third dyeing step of coating a third glaze so that the third color is imparted to a third area other than the first area and the second area. The method according to claim 1,
Wherein the second meta-
And coating the second glaze of transparent glaze so that the color of the substrate is imparted to the second region. The method according to claim 1,
Wherein the first chaebol step comprises:
Wherein the ceramic is placed in a kiln and heat-treated at 950 to 1000 占 폚. The method according to claim 1,
Wherein the sintering step comprises:
Wherein the ceramics are placed in a kiln and heat-treated at 1200 ° C to 1300 ° C. 8. The method according to any one of claims 1 to 7,
The forming step comprises:
A method for producing colored ceramics, comprising the steps of: forming said ceramic using chromatic base material as a material.

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