KR101924461B1 - Colorful Stone Ornaments and Inlaid Method of Colored Stone Ornaments - Google Patents

Abstract

A colorful stone ornament and the inlaid method of the colored stone ornament are provided. The colorful stone ornament includes a stone base material including a bottom surface facing the bottom and a top surface which is opposite to the bottom surface; and a stone-powder-mixed composition having a color different from that of the stone base material. The stone base material comprises an engraved pattern having a depth of 0.1 to 3 mm from the top surface of the stone base material. The intaglio pattern is filled with the stone-powder-mixed composition at a height equal to the height of the top surface of the stone base material. The stone-powder-mixed composition includes stone powder and an epoxy resin. The stone-powder-mixed composition comprises stone powder having an average particle size of 30 to 50 meshes. The stone-powder-mixed composition includes a mixture of stone powder obtained by pulverizing waste stone and the epoxy resin in a volume ratio of 6: 4. It is possible to provide a colored stone ornament with excellent decorative and aesthetic properties.

Description

[0002] Colored stone ornaments and inlaid methods [

The present invention relates to a colored stone ornamental product comprising a colored pattern, and it is possible to realize a color without distortion of color by inserting a stone-based mixed composition into a stone base material formed with an engraved pattern, Stone ornaments.

The present invention also provides a method for producing ornaments by inlaying a stone, comprising the steps of: applying a masking composition to a surface of a stone as a work piece; patterning the surface of the masked stone to form an engraved pattern; A step of inserting a mixture of abrasive grains into an intaglio area, a step of drying the abrasive mixture composition, and a step of removing the masking composition, wherein the abrasive mixture composition is produced by mixing a stone and an epoxy resin, The present invention relates to a method of inlaying a colored stone ornamental article in which not only excellent durability is maintained for a long time but also the color of the colored area is maintained for a long time and the process is simple and the production efficiency is remarkably improved.

Stone has been used as the most basic stiff material together with the history of mankind. The history of stone processing has been developed in a variety of technologies from ancient times to modern times. However, since stone is generally made of mineral materials and has a large specific gravity, there is a problem that adhesion or adhesion between materials is difficult, There is a limitation in the processing method such as coloring the surface.

Stone is used as a building and various ornaments. The technique of forming a variety of paintings and patterns on the surface of stone by using two or more stones has been used for expensive ornaments and buildings because of its esthetically and technically excellent value. However, Assembling or moving these assemblies has disadvantages of improving processing time and cost, and in spite of their aesthetic excellence and quality excellence, they have a disadvantage in that supply is significantly limited.

Specifically, in the past, a method of forming a pattern engraved with a predetermined depth on the surface of a stone and applying a composition containing a pigment and an adhesive to a portion where the engraved pattern is formed is subjected to surface finishing of the stone, And a method of fabricating a single ornament by assembling them into a single ornament.

In the case of forming a pattern engraved at a predetermined depth on the surface of the stone and painting the engraved pattern portion, the use time of the completed ornamental material has elapsed, or it has been exposed to rain, There is a problem that the composition is separated from the stone or the pigment disappears and the coloring effect or the decorative effect disappears, so that there is a problem that the persistence of the pattern is remarkably deteriorated. Furthermore, since the composition containing the adhesive is mixed on the surface of the stone, only the colored part appears visually and appears rough and color distorted in appearance, which is inadequate for use in expensive ornaments.

Accordingly, as a method for use in expensive ornaments and buildings, a method of engraving and assembling two or more stones in patterns has been used, which is one of the classical methods, in which each stone is individually worked and processed, Since the two pieces have to be machined so as to perfectly fit each other, excellent precision is required, and the processing time and cost are excessively consumed.

Particularly, since two or more stones need to be processed and assembled, the process of assembling the processed stone to another stone piece during the process of moving and lifting the stones is costly and requires labor and equipment .

Accordingly, it is an object of the present invention to provide a method of manufacturing a stone decorative article, which is capable of forming a pattern different in color from a stone and having excellent decorative effect, There is a continuing need for a technique for processing stone ornaments having a processing effect and significantly reducing processing cost and processing time.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and the technical problems required from the past.

The present invention relates to a colored stone ornamental product in which a colored pattern containing two or more colors is formed and which can be embodied in various colors and has no change in color before and after the process, And to provide a colored stone ornamental product excellent in decorative property and aesthetics.

Specifically, the colored stone ornamental article according to the present invention includes a stone base material including a top surface which is a surface opposite to a bottom surface and a bottom surface facing the floor, and a stone mixture composition having a color different from that of the stone base material, Wherein the intaglio pattern is filled with the component mixture composition at a height equal to the height of the top surface of the stone base material, and the composition of the rock salt mixture comprises a mixture of a starch and an epoxy resin Provides colored stone ornaments.

On the other hand, the component mixture composition may be obtained by mixing the abrasive obtained by pulverizing waste stone with an epoxy resin in a volume ratio of 5.6: 4.4 to 7: 3, and the abrasive mixture composition has an average particle size of 10 to 100 mesh Provides colored stone ornaments containing stones.

Further, the present invention relates to a method of paving a stone having a coloring effect by forming a pattern on the surface of a stone and by paving the stone to produce a stone ornamental product of the same quality as or superior to that of the stone by the conventional assembling technique, It is an object of the present invention to provide a method of inlaying a colored stone ornamental article which can significantly reduce time and processing cost.

Specifically, a method for producing a decorative article by inlaying a stone includes a masking process of applying a masking composition to the surface of a stone as a workpiece, a patterning process of forming a depressed pattern on the surface of the masked stone, An inserting step of inserting the abrasive mixture composition, a drying process of the abrasive mixture composition, and a process of removing the masking composition, wherein the abrasive mixture composition is produced by mixing the abrasive and the epoxy resin.

The present invention also provides an inlaid technique of color stone ornaments using a stone mixed composition obtained by mixing waste stone obtained by pulverizing waste stone with an epoxy resin in a volume ratio of 4: 6 to 7: 3.

In one specific example according to the present invention, the patterning step is to form an engraved pattern by laser processing or sandblasting, the engraved pattern being formed at a depth of 0.1 to 5 mm from the surface of the stone, The blend composition may comprise a stone powder having an average particle size of 10 to 100 mesh.

In detail, the patterning process is by laser machining, wherein the engraved pattern is formed at a depth of 0.1 to 3 mm from the stone surface, and the calcareous composition comprises a stone having an average particle size of 30 to 50 mesh Lt; / RTI >

On the other hand, in another specific example, the patterning process is by sandblasting, the engraved pattern is formed at a depth of 1 to 5 mm from the stone surface, and the calcareous composition has an average particle size of 50 to 70 mesh And the like.

As described above, the colored stone ornaments according to the present invention can be realized in color without color deformation, so that color can be realized according to the intention of the operator, and the color is excellent, and the decorative ornament and the aesthetics are excellent.

Further, the colored stone ornamental product according to the present invention is excellent in dimensional stability because no cracks or gaps are formed at the pattern portion where the stone and the stoneware mixed composition are in contact with each other and does not protrude from the surface of the stone even after drying the stone- And thus the stone-mixed composition of the pattern portion and the stone are closely adhered to each other, which is particularly advantageous in durability.

In addition, the inlaid method of the colored stone ornaments according to the present invention can easily form a pattern by forming a pattern on the surface of a stone or using two or more stone materials, However, it has the effect of finishing ornaments of equal or superior quality to that of producing stone ornaments by the assembling technique.

In addition, according to the present invention, there is provided a method for inlaying a colored stone ornamental product, which comprises the steps of: forming a pattern on a final surface of a stone ornamental product, It is not necessary to perform a post-process to remove fine steps.

In addition, the inlaying method of the colored stone ornaments of the present invention has an effect of maintaining excellent durability even in an outdoor environment exposed to moisture, ultraviolet rays and wind, and can be used for flooring or exterior decoration of a building.

Meanwhile, the inlaying method of the colored stone ornaments according to the present invention is advantageous in that it can be environmentally friendly and can reduce the manufacturing cost since the ornamental stone can be manufactured using waste stone.

1 is a photograph showing the colored stone ornaments of the present invention;
2 is a photograph showing the colored stone ornaments according to Example 2;
3 is a photograph of the colored stone ornaments of Comparative Example 2 where cracking occurred after the heat resistance test;
4 is a photograph of the colored stone ornaments of Comparative Example 4;
5 is a photograph of the colored stone ornaments of Comparative Example 8;
6 is a photograph showing the process of the production method of the present invention;
7 is a photograph of a protruded colored portion of the colored stone ornamental article of Comparative Example 1;
FIG. 8 is a photograph of the top (left) and side (right) images of the colored stone ornaments of another embodiment manufactured according to the manufacturing method of the present invention; FIG.
9 is a photograph of a colored stone ornamental product manufactured by the same method as in Comparative Example 7. Fig.

Hereinafter, each configuration will be described in more detail, but this is only an example, and the scope of the present invention is not limited by the following contents.

The present invention relates to a colored stone ornamental product comprising a colored pattern, comprising: a stone base material including a top surface which is a surface opposite to a bottom surface and a bottom surface facing the bottom; and an abrasive mixture composition having a color different from that of the stone base material, Comprises an engraved pattern having a depth of 0.1 to 5 mm from the top face, wherein the intaglio pattern is filled with the component mixture composition at the same height as the height of the top face of the stone base material, The present invention also relates to a colored stone ornamental product.

The colored stone ornaments according to the present invention can be color-matched according to the intention of the operator, since the composition of the stone-based powder containing the colored stone is maintained without color distortion before and after drying.

In addition, the colored stone ornaments according to the present invention are produced by inserting a mixture of abrasive grains into an engraved pattern formed on a base stone of a stone, and mixing the abrasive grains with the same height as the surface of the base stone material on the upper surface of the base stone, Even if the granules are inserted and dried, the stone base material and the dried portion of the mixture of the stone-like composition are brought into close contact with each other at the pattern portion of the finally obtained colored stone ornaments, so that the step is not formed and the durability is excellent.

The abrasive mixture composition may be a mixture of the abrasive obtained by pulverizing the waste stone with an epoxy resin in a volume ratio of 5.6: 4.4 to 7: 3, preferably 5.8: 4.2 to 6.5: 3.5, May be mixed in a volume ratio of 6: 4.

When the amount of the abrasive powder is more than the above ratio, the epoxy resin and the abrasive powder are not mixed sufficiently. Therefore, after the abrasive blend composition is applied to the engraved pattern area, the abrasive powder is blown out as time elapses or cracks are formed after the composition is hardened There is a problem.

When a small amount of the abrasive powder is added to the abrasive grains, a step is formed on the surface of the ornamental article in appearance and in a cusp on the pattern portion where the abrasive grains composition is inserted, and there is a disadvantage in that a post- , The process becomes complicated and the manufacturing cost increases.

In the colored stone ornaments of the present invention, the abrasive mixture composition may comprise a stone powder having an average particle size of 10 to 100 mesh.

When the average particle size of the abrasive grains is larger than the above range, there is a problem that the texture of the dried abrasive grains is insufficient after the abrasive blend composition is inserted, or the color of the abrasive powder is not sufficiently realized and the abrasive grains are recognized as visible particles have. When the average particle size is within the above range, the color tone can be sufficiently realized. Therefore, when the particle size is smaller than the above range, an additional process or an excess process is required to produce fine starch. There arises a problem that a problem of not uniformly dispersing occurs.

The present invention also relates to an inlaid punching technique capable of producing the colored stone ornaments described above, and is a method of processing a stone ornamental material which forms a pattern on the surface of a stone by using two or more stones, And the inlaying technique of filling the stone mixed composition including the powder of the waste stone is used.

The method of inlaying a stone ornamental product according to the present invention includes a masking process of applying a masking composition to the surface of a stone as a workpiece, a patterning process of forming a depressed pattern on the surface of the masked stone, A drying process of the composition containing the abrasive powder, and a masking removal process for removing the masking composition.

The abrasive grains composition may be prepared by mixing a stone and an epoxy resin. Specifically, the mixture of abrasive grains may be obtained by mixing abrasive grains obtained by pulverizing waste stone with an epoxy resin at a volume ratio of 5.6: 4.4 to 7: 3.

Preferably 5.8: 4.2 to 6.5: 3.5, and most preferably mixed at a volume ratio of 6: 4.

As described above, in the case where the amount of the abrasive grains exceeds the above-mentioned ratio, the epoxy resin and the abrasive grains are not sufficiently mixed and the abrasive grains are applied to the engraved pattern portion, There is a problem that a crack is formed later.

When a small amount of the abrasive powder is added to the abrasive grains, a step is formed on the surface of the ornamental article in appearance and in a tactile sense at the pattern portion where the abrasive grains composition is inserted, and there is a disadvantage in that a post- , The process becomes complicated and the manufacturing cost increases.

Meanwhile, in the method of inlaying a stone ornamental product according to the present invention, a masking process of applying a masking composition to a surface of a stone to be patterned is performed.

The masking process is for protecting the surface of the stone base material so that the mixture of the stone mixture and the stone mixture is not adhered to the surface of the stone base material except for the shavings when inserting the mixture of the stone mixture in the intaglio area.

Therefore, it is not particularly limited if it is a substance that can be easily removed by washing with water after completion of the colored stone ornamental product It is possible to use without.

The masking composition is a water-soluble paint, which is removed by adding warm water or cold water after completion of the stone processing process. It is applied to the entire surface of the stone to be processed prior to the patterning of the stone and prevents the mixture of the stone-and-loose composition from being applied to the portion where the pattern is not formed after inserting the stone-mixed composition into the portion where the engraved pattern is formed .

The masking composition preferably has excellent wettability and dryness, and it is preferable that the water-soluble material is completely cured by inserting and drying the mixture of the rock salt mixture, followed by washing with water to remove the masking film.

The masking treated surface is subjected to a patterning process to form an engraved pattern. The depth of the engraved pattern is preferably formed at a depth of 0.1 to 5 mm from the surface of the stone. If the depth of the engraved pattern is formed to be shallower than that of the stone, the contact surface between the composition and the stone may be reduced, When the temperature is rapidly reduced, there is a problem that the dried mixture of the abrasive grains may be separated from the surface of the stone.

If the depth is deeper than the above depth, it takes a long time to form the depth of the patterning process, and the drying time of the mixture of the abrasive powder is excessively required, resulting in a problem of poor process efficiency.

The patterning process may be performed by laser processing or sandblasting to form an engraved pattern. The depth of the engraved pattern described above can be varied depending on the processing method. By configuring the average grain size of the stones differently according to the depth of the engraved pattern, As shown in Fig.

Specifically, when performing a patterning process by laser machining, it is preferable to form an engraved pattern at a depth of 0.1 to 3 mm, and most preferably to form a depth of 0.3 to 2 mm. At this time, it is preferable that the average particle size of the abrasive grains to be inserted into the formed engraved pattern is 30 to 50 mesh, and when it is used, it forms a pattern having a similar tactile feeling to the surface of the stone, It is possible.

On the other hand, when performing the patterning process by the sand blasting, it is preferable to form the engraved pattern at a depth of 1 to 5 mm, and most preferably to form a depth of 2 to 5 mm. It is preferable that the average particle size of the abrasive grains mixed in the engraved pattern formed is 50 to 70 mesh.

When the average particle size is smaller than the average particle size, there is a problem in that it is impossible to produce a mixture of powder and granules which are uniformly dispersed in the process of preparing the composition, and when the average particle size is larger than the average particle size, There is a disadvantage that it is difficult to obtain a touch like stone.

The surface of the stone having the engraved pattern is inserted into the surface of the stone, and after the sufficient amount of the composition is inserted, the surface of the stone and the surface of the stone may be flattened so as to form a flat surface. The composition may be repeatedly filled so that the composition can be fully inserted into the depressed pattern portion before the composition is dried and hardened, and then the composition protruding from the stone surface is removed.

After the inserting process is performed, the above-described calcareous composition can be completely dried by drying at a temperature of 18 to 25 DEG C for 20 to 30 hours. At higher temperatures, complete drying is possible by drying at a temperature of 35 to 45 DEG C for 4 to 7 hours.

It is possible to process a stone ornamental product with little step difference simply by washing the surface of the patterned stone ornaments with water to remove the masking film.

Further, according to the present invention, the stone ornaments processed by the inlaid method can perform the additional polishing process or the coating process depending on the use of the final finished product or the function thereof. Unlike the prior art, There is an advantage that a polishing process or a coating process can be performed without any additional process.

Hereinafter, the present invention will be described in more detail by way of examples, but the scope of the present invention is not limited thereto.

≪ Example 1 >

KIWOFILLER SR 401 (masking composition) was applied to the entire surface of the stone and dried. Then, the engraved pattern was formed at a depth of 1 mm on the surface of the stone by a laser processing method.

The waste stone was pulverized in a pulverizer, and the sieves were sieved using a sieve of 30 mesh to collect only the sieves of 30 mesh or less. Using the sieves of 40 mesh, the obtained abrasive grains were pulverized to obtain powders of 30 to 40 mesh except for the powder passed through the sieve.

The resulting stone particles were mixed with an epoxy resin in a volume ratio of 6: 4. After thoroughly stirring with a stirrer, the mixture of the granulated powder and the agitated powder mixture was filled in the depressed pattern portion. The excess composition protruding from the stone surface was removed and dried at room temperature of about 20 to 25 DEG C for one day.

≪ Example 2 >

The same procedure as in Example 1 was carried out except that an engraved pattern was formed at a depth of 3 mm on the surface of the stone by a sandblasting method and a 60-70 mesh stone was used.

≪ Comparative Example 1 &

The procedure of Example 1 was repeated, except that 30-40 mesh of the starch was mixed with the epoxy resin in a volume ratio of 2: 8.

≪ Comparative Example 2 &

Except that 30-40 mesh sawdust was mixed with an epoxy resin in a volume ratio of 7: 3.

≪ Comparative Example 3 &

The same procedure was followed as in Example 1, except that 3-5 mesh of starch was mixed.

≪ Comparative Example 4 &

Was prepared in the same manner as in Example 1, except that 60-70 meshes of starch were mixed.

≪ Comparative Example 5 &

Except that 60-70 mesh stones were mixed with an epoxy resin in a volume ratio of 2: 8.

≪ Comparative Example 6 >

The procedure of Example 2 was repeated, except that 60-70 meshes were mixed with an epoxy resin in a volume ratio of 7: 3.

≪ Comparative Example 7 &

Was prepared in the same manner as in Example 2, except that 30-40 meshes of starch were mixed.

≪ Comparative Example 8 >

The same procedure as in Example 2 was conducted except that 90-100 mesh of the abrasive grains were mixed.

≪ Reference Example 1 &

An engraved pattern was formed at a depth of 1 mm on the stone surface by a laser processing method. After engraving on the engraved pattern, Urethane paint was used to paint the surface, and the surface of the painted area was topped with urethane resin.

<Reference Example 2>

Two stones were prepared, one stone was carved in the shape of a pattern, and the other stone was carved in the shape of an outer surface of the pattern.

After the laser etching process was performed on the upper surface of the patterned stone piece, the undercolor, middle and upper coloring operations were performed. After the paint curing, the depth side of the stone piece was polished and the final stone piece was manufactured by repeating the polishing and assembly so that the two pieces could be assembled.

Level measurement experiment

The depth (unit: mm) from the stone surface to the colored portion of the pattern was measured on the boundary of the pattern with respect to the stone ornaments made according to Examples, Comparative Examples and Reference Examples.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Measures
(Unit: mm) -0.05 0.1 0.21 0.52 0.64 0.14 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Reference Example 1 Reference Example 2 Measures
(Unit: mm) 0.67 0.71 0.97 0.85 -0.91 -0.05

Heat resistance experiment

The stone ornaments prepared according to the examples, comparative examples and reference examples were placed in an oven and stored at 50 DEG C for 14 days. Table 2 shows changes in appearance after storage.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 No change No change Epoxy resin shrinkage Exposure of stones, cracking occurred Cracking Color change Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Reference Example 1 Reference Example 2 Epoxy shrinkage Exposure of stones, cracking occurred Cracking Color change Color change No change

Water resistance experiment

The stone ornaments prepared according to the examples, comparative examples and reference examples were placed in water for 7 days, and the appearance changes are shown in Table 3.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 No change No change Deepening step Cracking Cracking
Deepening step Deepening step Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Reference Example 1 Reference Example 2 Deepening step Cracking Cracking
Deepening step Deepening step Color change,
Loss of colored area No change

Light resistance experiment

Table 4 shows changes in the external appearance of the stone ornaments prepared according to the examples, comparative examples and reference examples after 14 days exposure to ultraviolet rays (300-400 nm wavelength band).

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 No change No change Cracking Cracking Cracking Color change Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Reference Example 1 Reference Example 2 Cracking Cracking Cracking Color change Color loss No change

Referring to Table 1, in the case of Comparative Example 1 and Comparative Example 5, after inserting the abrasive composition, the pattern portion was protruded from the stone surface with drying, and a step was formed. In the case of Comparative Example 2 and Comparative Example 6, steps were formed in the same manner. However, unlike Comparative Examples 1 and 5, in which the steps of uniform height were formed, the powdered stone-like composition was dried to form a rugged surface, Uneven surface protruding or recessed from the surface was formed.

Referring to FIG. 3, there is shown photographs of the colored stone ornaments of Comparative Example 2 that were destroyed after the heat resistance test. The durability was remarkably deteriorated in the state where the cracks were formed, and the phenomenon that the stone was destroyed by heat appeared.

On the other hand, in Comparative Examples 3 and 7, a rough uneven surface similar to that of Comparative Examples 2 and 6 was formed as the average particle size of the abrasive grains increased. On the other hand, FIG. 9 shows another colored stone ornamental product manufactured by the same method as in Comparative Example 7, and as shown in the figure, cracks were observed on the surface of the ground- Can be confirmed.

On the other hand, in the case of Comparative Example 4, there was a problem that the surface of the stone as a fake material partially shone by inserting the mixture of abrasive grains into the recessed pattern portion having a shallow depth. Referring to FIG. 4, there is shown a photograph of the colored stone ornaments of Comparative Example 4 in which the non-sticking phenomenon of the stone base material appears. In particular, in the case of Comparative Example 8, there was a problem that fine fine powder was not mixed with the epoxy resin, and some color lumps were formed, making it difficult to produce. As shown in FIG. 5, uneven color accumulation occurs in the colored areas, and accordingly, it is difficult to implement the colors with the intended color of the operator. Thus, the decorative and esthetic properties of the colored stone ornaments are sufficiently realized There is an inadequate problem.

In the case of the stone ornaments manufactured according to Reference Example 1, there is a problem that the engraved pattern is almost retained, the colored texture is not good, and the colored portion is easily lost due to external impact. On the other hand, in the case of Reference Example 2, the step value on the boundary of the pattern is not large, but the process time is considerably excessive due to repeating the process of repeatedly polishing and assembling the two pieces of stone in the pore process (about 20 days ).

Referring to Tables 2 to 4, it was confirmed that the stone ornaments prepared according to the examples had no particular change in heat treatment, water treatment, and ultraviolet irradiation, and thus had excellent durability.

Claims (9)

As inlaid stone ornaments,
And a top surface which is a surface opposite to a bottom surface and a bottom surface facing the bottom, and a stone mixture composition having a color different from that of the stone base material,
Wherein the stone base material comprises an engraved pattern having a depth of 0.1 to 3 mm from the top face of the stone base material,
Wherein the intaglio pattern is filled with the stone-mixed composition at a height equal to the height of the top surface of the stone base material,
Wherein the abrasive grains and the abrasive grains are mixed with each other,
Wherein the calcareous composition comprises a stone powder having an average particle size of 30 to 50 mesh,
Characterized in that the above-mentioned abrasive stone composition comprises a mixture of abrasive grains obtained by pulverizing waste stone and an epoxy resin in a volume ratio of 6: 4. delete delete A method for producing an inlaid stone ornamental article according to claim 1 by inlaying the stone,
A water-soluble paint application process in which a water-soluble paint is applied to the entire surface of the stone base material as a workpiece;
A laser machining patterning process for forming an engraved pattern by laser machining on the surface of a stone base material coated with a water-soluble paint;
An inserting step of inserting the abrasive blend composition at the recessed portion where the pattern is formed at the same height as the surface of the stone base material;
A drying process of the abrasive mixture composition; And
A washing process of washing the water-soluble paint composition with water; / RTI &gt;
Characterized in that the above-mentioned abrasive mixture composition is produced by mixing abrasive and epoxy resin.
delete delete delete delete delete

Images