KR100726198B1 - Decoration methods of ceramics - Google Patents

Abstract

A method for decorating ceramics by exposing coloring layer through cutting is provided to facilitate decorating ceramics with various colors and patterns, to improve reproducibility of pattern expression, and to allow mass production with low cost. The method for decorating ceramics by exposing coloring layer through cutting comprises: molding a base article of ceramics(1); forming more than one of coloring layers(2) on the base article of ceramics; cutting the coloring layers according to the pattern; applying glaze on the base article of ceramics; thermohardening the glazed ceramics.

Description

Decoration method of ceramics

1 is a schematic view showing an example of an apparatus for cutting ceramic objects.

2 is a schematic plan view of the apparatus of FIG.

3 is a schematic view showing another example of an apparatus for cutting ceramic objects.

Fig. 4A is a partially enlarged cross-sectional view showing an example of a porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 5A is a partially enlarged cross-sectional view showing another example of a porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 6 (a) is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 7 (a) is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 8A is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

9 is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 10 is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with a coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

Fig. 11 is a partially enlarged cross-sectional view showing still another example of the porcelain base provided with the coloring material layer. (b) is a partial enlarged sectional view which shows the state which cut the coloring material layer of (a). (c) is a partial enlarged plan view which showed the state which cut the coloring material layer of (a).

** Description of the symbols for the main parts of the drawings **

1: ceramics

10: convex irregularity part

11: concave and convex

2: coloring material layer

20: first coloring material layer

21: second coloring material layer

22: third coloring material layer

3: exposed surface

4a ， 4b: grip

40: cylinder

41: belt drive

42: motor

5: cutting means

50, 51, 52: barrel

6a, 6b, 6c: linear actuator

7: stand

70: suction hole

71: spindle unit

72: vacuum pump

Japanese Patent Laid-Open No. 03.262684

Japanese Patent Laid-Open No. 6.262615

Japanese Patent Laid-Open No. 2000-7468

The present invention relates to a method of surface decoration of ceramics.

As a conventional method of surface decoration of ceramics, a method of drawing a sketch on a body (body) and treating it with a glaze before high temperature firing, There are methods using colored clay. As an example of the method using the colored clay, the pigmented clay or metal oxide Milefiore and / or Yeonmun technique, which mix, knead or combine different colored clays together, and Nerie to collect several pieces of colored clay in a concave frame so that the inside and outside of the object become the same pattern. There is a neuriage technique. But the process of drawing sketches and kneading clay must be done by hand in order to express the intended pattern. In particular, when forming a three-dimensional pattern or spot pattern, there was a problem in that the manufacturing cost is high because the glaze on the surface of the ceramic product must be applied repeatedly or separately painted.

As a surface decoration method of ceramics that can easily form irregularities and spot patterns, Japanese Patent Laid-Open Publication No. 03.262684 discloses a state of particulate flits and / or granular glazes and slurries. It describes a method of mixing glazes and oiling the surface of ceramic products. However, such a method can easily express spot patterns, but it is difficult to express other intended patterns, and insufficient reproducibility of the patterns.

Japanese Laid-Open Patent Publication No. 2000-7468, after applying transfer paper for surface decoration on the glaze treated surface of chaebol or secondary calcined ceramics, baking at high temperature at a temperature of about 1,000 ° C. to 1,200 ° C. or higher, and roasting chaebol or secondary firing. A method of protruding the transfer layer to the glaze-treated surface of the film is described. According to this method, surface decoration such as a pattern can be efficiently performed on a smooth surface, but it requires high temperature firing once again after applying the transfer paper, and an expensive screen printing machine must be introduced, and the surface decoration process is There was a troublesome problem.

In Japanese Laid-Open Patent Publication No. 6.262615, after drying a molded porcelain article, a liquid to be adsorbed onto the article is applied to the surface of the substrate so as to have a pattern, and before it is dried, a blast is applied to the surface. Only the part which is not apply | coated is peeled off, and the three-dimensional pattern expression method of the surface of the porcelain base material which expresses a liquid coating part by a three-dimensional pattern is described. In the above document, the liquid coating portion can be colored, but since the blasted portion is the base of the original porcelain base, a step of providing a colored layer therein is required to form a colored layer thereon. Therefore, in the above technique, the process in the case of diversifying the color pattern was complicated.

Accordingly, it is an object of the present invention to provide a method of decorating a surface of ceramics, which is capable of easily expressing various color patterns intended, excellent in reproducibility of pattern expression, and suitable for mass production at low cost.

As a result of diligent research for the above purpose, the present inventor intends to provide at least one layer of a coloring material layer on the surface of a molded porcelain article, and to express color patterns on a surface in which part of the coloring material layer is cut and exposed. The present invention has been conceived by finding that various color patterns can be produced easily, with excellent reproducibility, and at low cost.

That is, in the ceramic surface decoration method of the present invention, at least one layer of coloring material layer is provided on the surface of the molded ceramic material, and a part of the coloring material layer is cut to display color patterns on the exposed surface. It features. It is preferable that the said coloring material layer is two or more layers from which a color differs, respectively.

It is preferable to form a concave or convex taper-cutting portion in the coloring material layer at a portion to express the color pattern of the porcelain base.

It is preferable that the said porcelain base has convex unevenness in the surface. In the site | part which has the convex convex-convex part of the said porcelain base, the said coloring material layer is provided at least around and around the said convex concave-convex part, and the said convex concave-convex part to the depth to which the said convex concave-convex part or required color pattern is exposed. And it is preferable to form a color pattern by cutting the said coloring material layer around the vicinity, and the exposed surface of the said convex-convex part, and the coloring material layer expressed around it.

It is preferable that the porcelain article has concave-convex portions on its surface. In the site | part which has the recessed concave-convex part of the said porcelain base, the said coloring material layer is provided at least around the vicinity of the said recessed concave-convex part, and the site | part of the said recessed concave-convex part to the depth which reaches the porcelain base around the said recessed concave-convex part It is preferable to form the color pattern by the coloring material layer exposed in the said concave-convex part by cutting the said coloring material layer around the vicinity.

The surface decoration method of ceramics according to the present invention includes (1) forming a ceramic material, (2) forming a colored material layer, (3) cutting a colored material layer, and (4) ceramics. And a step of lubricating the article, and (5) a step of firing.

(Molding process)

The material for molding the porcelain article is not particularly limited, and any type of clay may be used. For example, well-known earthenware, pottery, stoneware, and individual clays that form porcelain can be used. What added feldspar and / or pumice and / or quartz or / and pigment to these can be used. There is no particular limitation on the form of porcelain articles, and examples thereof include tableware, flower pots, bricks, sidewalk blocks, roof tiles, decorative articles, interior and exterior tiles, bathtubs, toilet seats, terracotta, and the like.

As a method of molding porcelain articles, depending on the form to be made, a soil injection molding method (gypsum injection molding method), a pressure injection molding method, a mechanical spinning wheel molding method, a roller machine molding method, a press molding method, an extrusion molding method, etc. A well-known method is mentioned. When molding porcelain articles of a relatively complicated form such as tableware, it is preferable to mold using such molding methods. When such a molding method is used, not only the gypsum mold but also a mold may be used if necessary.

In the case of forming irregularities on the surface of ceramics for surface decoration, it is preferable to use a gypsum mold in which the irregularities are attached to the surface, so that the pattern is imprinted on the material before drying. If necessary, the surface of the porcelain deformed from the plaster mold is engraved or In relief Unevenness may be formed by cutting or stamping a hard object such as a seal and pressing it into the object before drying. In the case of forming the unevenness, the unevenness may be formed by the above method after the first coloring material layer is provided or after the second coloring material layer is provided. 1, 2, 3... Uneven | corrugated may be provided by the said method before and after installation of a coloring material layer.

The method of forming the unevenness by cutting the surface of the porcelain article will be described with reference to the drawings. 1 is a schematic diagram showing an example of an apparatus for cutting a porcelain article in the form of a container. 2 is a schematic plan view of the apparatus shown in FIG. The apparatus has grips 4a and 4b for holding the bottom of the porcelain article 1 from both sides, and a means 5 for cutting the side surface of the porcelain article 1. The grip 4a is supported by the cylinder 40 so that it can rotate, and rotational drive is possible by the motor 42 through the belt transmission mechanism 41. The grip 4b may be rotatable by the motor 42 together with the grip 4a, or may be supported such that the grip 4b can rotate by a cylinder or the like. The gripping means of the porcelain article 1 is not limited to using the grips 4a and 4b. For example, a rotary chuck capable of gripping the upper and lower portions of the porcelain article 1 may be used.

The cutting means 5 is connected to the linear translatory actuator 6a housed in the outer cylinder 50 located in the second axis (y-axis) direction perpendicular to the first axis (z-axis) direction parallel to the central axis of the porcelain article 1. It is mounted and can be moved in the y-axis direction in conjunction with the linear actuator 6a. The outer cylinder 50 is attached to the linear actuator 6b accommodated in the outer cylinder 51 located in the z-axis direction, and is linked to the linear actuator 6b to move in the z-axis direction. The outer cylinder 51 is mounted on the linear actuator 6c accommodated in the outer cylinder 52 positioned in the third axis (x axis) direction perpendicular to the z axis direction and the y axis direction, and is linked to the linear actuator 6c to move in the x axis direction. Thus, the cutting means 5 can move in three dimensions.

As the cutting means 5, a blade, a luter, a grinder, a roll grinder, etc. are mentioned. These can be attached to linear actuators to give flexibility, such as advancing and retracting the z, y or x axis, to cut according to the irregular curved surfaces of the object (eg eggs, elliptical forms). As a linear actuator 6a, 6b, 6c, a hydraulic cylinder, an air cylinder, etc. are mentioned. If a hydraulic cylinder or air cylinder is used, it can be driven by a motor.

The linear motion drive mechanism in each of the x, y, and z directions is not limited to the mechanism using the linear motion actuators 6a, 6b, and 6c. In addition, a mechanism composed of a rack and a gear wheel may be used. Instead of the mechanism using the linear actuators 6a, 6b, and 6c, the cutting means 5 may be operated by the robot arm.

The motor for driving the linear actuators 6a, 6b, 6c and the motor 42 for rotating the grip 4a are preferably controlled by an electronic control device that performs signal processing in accordance with a program stored in advance. When using the said robot arm, it is preferable to control by the electronic control apparatus which performs a signal process according to the program memorize | stored previously. By using the above-mentioned structural apparatus, since the position and cutting depth of the cutting means 5 with respect to the porcelain article 1 can be controlled freely, the uneven | corrugated shape of a desired place can be formed precisely in a short time.

Fig. 3 shows an example of an apparatus for cutting ceramic dishes in the form of a dish. In Fig. 3, the same reference numerals are assigned to the same members or parts as those shown in Fig. 1. As an example of Fig. 3, a pedestal 7 having a suction hole 70 is used as a means for holding the porcelain article 1. The pedestal 7 is supported by the spindle unit 71 so as to be rotatable, and can be rotated by the motor 42 through the belt transmission mechanism 41. The porcelain article 1 is placed so that its backside is directly in contact with the pedestal 7, and is adsorbed onto the pedestal 7 by the operation of the vacuum pump 72. It is preferable to use the base 7 made of silicone rubber or the like. The same thing as the above regarding the kind of the cutting means 5, the three-dimensional movement control of the cutting means 5, and the control of the motor 42 is good. When cutting the back of the dish-like porcelain article 1, a pedestal 7 in contact with the top of the dish-form porcelain article 1 may be used.

(Coloring material layer forming process and cutting process)

Hereinafter, the process of forming a coloring material layer and the process of cutting a coloring material layer are demonstrated using drawing. 4 and 5 show an example in which a colored material layer is provided on a smooth surface of a porcelain base and a part of the cut is cut. In the example shown in FIG. 4, the coloring material layer 2 which consists of two layers of the 1st layer 20 and the 2nd layer 21 in which a color differs, respectively is provided in the surface of the porcelain base 1. As the coloring material 2, a lower ash material (a general decoration technique is used to draw a painting on the substrate surface. The white porcelain of the Joseon Dynasty was painted with blue, brown, or red on the surface of the first baked, and baked with transparent oil), pigments, clay, glaze, and colored clay. As the pigment, generally known pigments used for coloring ceramics can be used, and examples thereof include Western pigments and Oriental pigments.

As an application means of a pigment, an air brush method, an immersion method, a spin coat method, etc. are mentioned, An air brush method is preferable. In the airbrush method, not only can a pigment be apply | coated efficiently, but also film thickness control is easy. For example, in the case of coating on the side or top of the porcelain article, the porcelain article is placed on a rotatable base, and evenly applied by an airbrush while being rotated by a driving means such as a motor. Although the airbrush may not be movable, it is preferable that it is movable. When the airbrush is movable, a mechanism such as a three-dimensional movement control mechanism of the cutting means may be used, and signal processing is performed in accordance with a program stored in advance on a motor for controlling the use of the airbrush and a motor for rotating ceramics. It is preferable to control by the electronic control apparatus to perform.

When clay or colored clay is used as the coloring material 2, the clay or colored clay is made into a paste-like substance diluted with a solvent such as water, and is immersed according to the shape of the porcelain by a method such as dipping method or cipine coating method. It is preferable to apply to the surface. The coloring material layer 2 does not necessarily need to be installed on all sides of the ceramics, and may be provided only to the portion where the color pattern is to be formed. Moreover, what is necessary is just to provide at least 1 layer of coloring material layer 2, and you may provide several layers according to the color pattern of a desired place.

Although the thickness of each of the 1st layer 20 and the 2nd layer 21 which comprise the coloring material layer 2 may be set suitably according to a desired color pattern, it is usually made into 0.01-3 mm (it is the same below). What is necessary is just to set the color of each coloring material layer 20 and 21 suitably according to the color pattern of a desired place.

The ceramics provided with the coloring material layer 2 are dried until the cutting of the coloring material layer 2 becomes possible. It is preferable to perform drying in the environment which kept temperature and humidity constant. If the strength of the porcelain article 1 is not high enough to withstand the next step of cutting, the porcelain provided with the coloring material layer 2 may be temporarily baked or baked first. When temporarily baking or roasting, it is good to put the ceramics provided with the coloring material layer 2 in a kiln, and to heat until it becomes the temperature of about 500-1000 degreeC. It is not always necessary to bake the whole temporarily, and only the part which contacts with a holding means at the time of cutting may be baked temporarily. As a method of temporarily baking, there is a method of heating the porcelain article 1 in an electric furnace capable of adjusting the temperature distribution, and a method of blowing a partial hot air to the extent that no deformation occurs in the porcelain article 1.

In the example shown in Fig. 4, the coloring material layer 2 shown in Fig. 4 (a) is dried and cut into a shape of earthenware (a bowl used for grinding or grinding medicine) to a depth reaching the first layer 20. Thus, as shown in Figs. 4B and 4C, a round color pattern formed by the first layer 20 is formed on the exposed surface 3.

The means used for cutting the coloring material layer 2 (porcelain gripping means, cutting means, three-dimensional moving means of the cutting means, and means for rotating the porcelain) and their control cut the above porcelain articles and install irregularities The description may be omitted as it may be the same as in this case. However, as shown in Fig. 4, in the case of forming a cut portion having a protruding shape, a router is preferable as the cutting means. In the case of forming the cut-out portion of the trigger shape, the mask may be masked so that only the part to be cut is exposed, and then a sand blasting method may be used.

Fig. 5 shows an example in which a colored material layer 2 composed of three layers of a first layer 20, a second layer 21, and a third layer 22 having different colors is provided on the surface of the porcelain article 1. Indicates. In the case where the three layers of coloring material layers 20 to 22 are provided, when the cut to the depth reaching the first layer 20 is performed in a triggered shape, as shown in Figs. 5B and 5C, the first exposed surface 3 is first. It is possible to form a double-layered round color pattern consisting of layer 20 and second layer 21 of.

In addition, in the case where the coloring material layer 2 composed of three layers as shown in Fig. 5 is provided, a part to cut to a depth reaching the second layer 21 and a part to cut to a depth reaching the first layer 20 are provided. In this case, various kinds of color patterns can be formed.

In the case of cutting the colored material layer 2 provided on the smooth surface as shown in Figs. 4 and 5, in order to express the color pattern, the above tapered surface may be formed, and the shape of the cut portion and the colored material layer may be used. By appropriately changing the cutting angle for 2, various color patterns appearing on the exposed surface 3 can be varied. In addition, it is possible to cut to the depth of porcelain body, thereby enabling the color composition including the color of porcelain body. The cutting portion is not limited to the shape as long as it has a tapered surface, and includes geometric shapes such as cone shape, pyramidal shape, and hemispherical shape in addition to the trigger shape; Home imitated character; Grooves of irregular shape; The groove | channel which imitated concrete objects (for example, a flower, an animal, a grain of wood, etc.) is mentioned.

6-8 show the example which cut | disconnected and provided the coloring material layer in the surface in which the columnar convex convex-convex part of the porcelain base was provided. In the example shown in FIG. 6, the 1st layer 20 thinner than the height of the convex uneven part 10 is provided, and the 2nd layer 21 is provided on it. As shown in Figs. 6B and 6C, when the portion of the convex concave-convex portion 10 and its vicinity are cut in the same shape along the porcelain surface to the depth reaching the upper end of the convex concave-convex portion 10, the exposed face 3 The double pattern color pattern by the exposed surface of the convex convex-convex part 10, and the 1st layer 20 can be formed. It is preferable to use a blade or a roll grinder as the cutting means for cutting the same shape along the ceramic surface, but a sand blasting method may be used if necessary.

In the example shown in FIG. 7, the 1st layer 20 and the 2nd layer 21 are provided so that the sum total thickness may be smaller than the height of convex unevenness 10, and the 3rd layer 22 is provided on it. As shown in Figs. 7B and 7C, when the convex concave-convex portion 10 and its vicinity are cut in the same shape along the porcelain surface to a depth reaching the upper end of the convex concave-convex portion 10 of the porcelain article, the exposed face 3 The triple pattern color pattern by the exposed surface of the convex convex-convex part 10, the 1st layer 20, and the 2nd layer 21 can be formed.

In the example shown in FIG. 8, coloring material layers 20-22 are provided so that the sum total thickness may become smaller than the height of the convex uneven part 10. FIG. As shown in Fig. 8, when the convex concave and convex portions 10 and its vicinity are cut in the same shape along the porcelain surface to the depth reaching the upper end of the convex convex and concave portions 10 of the porcelain base, the exposed surface of the convex convex and convex portions 10 is exposed. The tri-color pattern by the 20 and 2nd layer 21 of a 1st layer can be formed, and a triple pattern can be made sharper than the surroundings, and a three-dimensional effect is also acquired.

Ceramics having three layers of coloring material layers 20, 21, and 22 shown in Figs. 7 and 8 do not necessarily need to be cut to a depth reaching the upper end of all the convex concave-convex portions 10, even if they have a plurality of convex concave-convex portions 10. The site | part to cut to the 1st layer 20 and the 2nd layer 21 may be provided, and various color patterns can be formed by this.

As described above, if the convex concave and convex portions are provided in the porcelain article beforehand, after forming the colored material layer 2, the part of the convex convex and convex portion 10 and its vicinity are cut into the same shape along the surface of the porcelain article to a predetermined depth. Color patterns can be formed. When the shape of the convex convex-concave portion 10 and the cutting angle with respect to the colored coloring layer 2 are appropriately changed, the color pattern to be revealed can be variously changed. There is no restriction | limiting in particular in the shape of the convex uneven part 10, Geometric shapes, such as a footnote shape other than a circumferential shape; Shape imitating character; Irregular shape; The shape which imitated the concrete thing (for example, a flower, an animal, a grain of wood, etc.) is mentioned.

9-11 show the example which cut and provided the coloring material layer in the surface in which the circumferential concave-convex part of the porcelain base was provided. In the example shown in FIG. 9, the coloring material layer 2 thicker than the depth of the recessed concave-convex part 11 is provided. As shown in Fig. 9 (b) and (c), when the part of the concave-convex portion 11 and its vicinity are cut into the same shape along the surface of the porcelain article to the depth reaching the porcelain base, the concave-convex portion 11 is filled. A circular color pattern by one colored material layer 2 can be formed on the exposed surface 3.

In the example shown in FIG. 10, the 1st layer 20 thinner than the depth of the concave-convex part 11 is provided, and the 2nd layer 21 is provided on it. As shown in Figs. 10 (b) and 10 (c), when the part of the concave-convex portion 11 and its vicinity are cut into the same shape along the surface of the porcelain article to a depth up to the porcelain base, the concave-convex portion 11 The double color pattern by the filled coloring material layers 20 and 21 can be formed in the exposed surface 3. As shown in FIG.

In the example shown in FIG. 11, the 1st layer 20 and the 2nd layer 21 are provided so that the sum total thickness may become smaller than the depth of the recessed concavo-convex 11, and the 3rd layer 22 is provided on it. As shown in FIG. 11, when the part of the recessed concave-convex part 11 and its vicinity are cut in the same shape along the porcelain base surface to the depth which reaches porcelain base material, by the coloring material layers 20-22 filled in the recessed concave-convex part 11 Tri-color patterns can be formed on exposed surface 3.

Even if a ceramic having three layers of colored material layers 20, 21, and 22 shown in Fig. 11 has a plurality of concave-convex concave portions 11, it is necessary to cut to all the concave-convex concave portions 11 to a depth that reaches the surrounding porcelain base. The site | part to cut to the depth which reaches | attains the 1st coloring material layer 20 and the 2nd coloring material layer 21 may be provided, and various color patterns can be formed by these.

As described above, if the concave-convex portion 11 is provided in advance in the porcelain article, the colored material layer 2 is formed, and then the portion and the vicinity of the concave-convex portion 11 are cut to a predetermined depth in the same shape along the porcelain article surface. Only by forming a color pattern. When the shape of the concave-convex portion 11 and the cutting angle with respect to the colored material layer 2 are appropriately changed, the color patterns that appear can be variously changed. The shape of the concave-convex concave-convex portion 11 is not limited, and may include, but are not limited to, geometric shapes such as cone shape, foot shape, pyramidal shape, hemispherical shape, and trigger shape; Home imitating character; Irregularly shaped grooves; The groove | channel which imitated concrete objects (for example, a flower, an animal, a grain of wood pattern, etc.) is mentioned.

In addition, when the color patterns formed in the above smooth portions, the color patterns formed in the portions of the convex concave and convex portions 10, and the color patterns formed in the portions of the concave and convex portions 11 are combined, respectively, various patterns can be formed in ceramics. Can be.

In addition, the cutting of the coloring material layer 2 is preferably performed before roasting chaebol or secondary firing, but the present invention is not limited thereto and may be performed after roasting chaebol as necessary.

(Firing)

After forming the color pattern on the porcelain article as described above, the chaebol roasting or secondary baking. The chaebol roasting or secondary firing is preferably performed for 6 to 25 hours at a temperature of about 1,000 ~ 1,400 ℃. It is preferable to apply glaze before chaebol roasting or secondary firing, but it is not necessarily limited thereto. Glaze is preferably applied by dipping or spraying.

According to the present invention, the intended color patterns can be easily and easily reproduced and can be expressed on ceramics at low cost. Moreover, according to this invention, a three-dimensional effect can be easily given to a color pattern. Therefore, the present invention is suitable for mass production of surface decorated ceramics. In the present invention, the surface decoration method can be applied to the surface decoration of various kinds of ceramics such as tableware, flower pots, bricks, sidewalk blocks, roof tiles, decorative articles, interior and exterior tiles, bathtubs, toilet seats, terracotta, and the like.

Claims (5)

Porcelain characterized in that at least one layer of coloring material layer (2) is provided on the surface of the molded porcelain article (1), and a color pattern is displayed on a surface of a portion of the coloring material layer (2) that has been cut and exposed. Surface decoration method. The ceramic ware base (1) according to claim 1, wherein the porcelain article (1) has a smooth portion on the surface, and the colored material layer (2) is provided on the smooth portion, and the taper shape is cut in the colored material layer. Surface decoration method of pottery, characterized in that to form a site. 3. The ceramic material 1 according to claim 1 or 2, wherein the porcelain base 1 has a convex concave-convex portion 10 on its surface, and at least the convex concave-convex portion 10 above the colored material layer above and around the vicinity thereof. (2) is provided, and the colored material layer 2 around the convex concave and convex portions 10 and its vicinity is cut to a depth at which the convex concave and convex portions 10 are exposed, and the convex concave and convex portions 10 are provided. The color decoration pattern is formed by the exposed surface of () and the coloring material layer (2) expressed around it. The ceramics article has a concave-convex portion 11 on its surface, and at least a portion of the coloring material layer 2 is provided around and around the concave-convex portion 11. And cutting the colored material layer 2 around the concave and convex portions 11 and its vicinity to a depth reaching the porcelain article around the concave and convex portions 11 and expose the concave and convex portions 11. The surface decoration method of pottery, characterized by forming a color pattern by the coloring material layer (2). 3. The surface decoration method according to claim 1 or 2, wherein the coloring material layer (2) is formed of two or more layers each having a different color or brightness.

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