KR101542368B1 - Heat-resistant pottery and glaze using basalt and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an ongyo made using basalt. Onggi, basalt powder; A refractory material selected from the group consisting of obi clay and Sanskrit kaolin, or a mixture thereof; A pottery body formed by mixing the basalt and the heat resistant base; An elongated recess formed in the pot body; A molten basalt filling layer filled in the upper portion; And a glaze layer forming the surface of the pot body and containing a basalt component, thereby providing a sanitary pot with a semi-permeable property, a high thermal conductivity and a heat-releasing property, and a large amount of far- .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ongas and a glaze manufactured using basalt,

More particularly, the present invention relates to a method for producing pottery, pottery, pottery, pottery, pottery, pottery, pottery, and pottery using basalt, To a method for producing pottery, pottery, pottery, pottery, pottery, pottery, pottery, pottery, pottery, and pottery.

Metal elements such as silicon, aluminum, titanium, zirconium and the like contained in clay and caolin are combined with oxygen, carbon, nitrogen and the like by a ceramics process to make ceramics of hard oxides and carbides. From the past, clay and kaolin have been selected as useful materials for making lightweight, hard and breathable pottery. Traditionally, the clay selection was made by dividing the clay into mountain areas when manufacturing Onggi. For example, in the case of domestic clay, Hampyeong clay contains a large amount of silicate and alumina, fine grains, and sankung clay has a large amount of alumina and the grains are relatively thick compared to Hampyeong clay.

Korean Patent Laid-Open Publication No. 10-1998-0001956 discloses a method for producing ceramic pots by specifying such mountainous resources in connection with the production of Onggi, and it has been proposed that a raw material composition of hanpyeong clay, sancong clay, kaolin, and sericite It is described as bioceramic pottery, and sericite of coarse particles is used as a mixed material as low-temperature melting minerals. Cerisite is a mineral added as a filler material in the production of ceramics and affects ceramic crystals in ceramics process. For example, a porosity of a ceramic crystal phase, weight, air permeability, or the like.

A recent patent document, Korean Patent Registration No. 10-1420114, discloses a proposal to prepare a porous Ingot by incorporating a pore-forming agent comprising expandable clay and silicon carbide into a pottery base composition. In the same manner, Inducing a change in distribution, thereby obtaining a lighter reforming pot.

In ceramic green onion firing, there is known a method in which the firing is performed in the order of stoichiometry, molding, sculpture, preliminary firing (firing temperature 750 ° C. to 800 ° C.), fuel oil and glaze firing, and baking at 1200 ° C. to 1250 ° C.

Basalt is a mineral composition such as olivine, dilution, plagioclase and magnetite, and chemical components are different depending on the generation area (domestic distribution is large in Gangwon Cheolwon area and Jeju area) and time. Silicon dioxide is the main component, and other oxide components are included, and the melting point is about 1,100 to 1,500 DEG C, which is lower than other ceramic materials. It has excellent chemical resistance and abrasion resistance against acid and alkali and is known to emit a large amount of far-infrared rays upon receiving heat. The industrial application is limited to the extent that it is used for stone, aggregate, brick, household goods, etc. by primary processing of the ore, or by cooling the ore by pouring it into a certain mold and cooling it for use in crafts or building bricks In fact.

At present, more than 50% of the ore is generated as waste stone and stone dust in the basalt process, and it is left as industrial waste. Because of the problem of securing landfill, the stone dust sludge is caused by dust, which causes environmental problems such as air pollution, soil and groundwater pollution. Examples of the recycling of the basalt waste sludge sludge have been proceeded to produce a specific product by calcining the sludge sludge. Korean Patent Laid-Open No. 10-2013-0136153 discloses a proposal to utilize it as a porous lightweight foamed aggregate, There is no relevance to the field.

The inventors of the present application have confirmed that basalt or abandoned or discarded waste basalt can be used as a useful material for the base and glaze parts in the manufacture of heat resistant toilets.

Patent Document 1: Korean Patent Laid-Open No. 10-1998-0001956 (published on March 30, 1998)

Patent Document 2. Korean Patent No. 10-1420114 (Bulletin 2014. 07. 18)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a pottery containing a basalt composition.

Another object of the present invention is to produce a sanitary ointment having a far-infrared emissivity and antibacterial property by heat conduction.

Another object of the present invention is to use basalt as a component of an Onggi-bearing part and a glaze part.

It is a further object of the present invention to enhance utilization and recycling of basalt, including mined basalt, spent basalt and limestone sludge.

A method of manufacturing pottery using basalt rock according to an embodiment of the present invention includes washing basalt gypsum or abandoned basalt rock, drying and drying dried basalt gypsum or pulverized basalt to powder particles; Mixing the basalt powder processed into a powder phase with an inorganic base powder and a glaze to prepare a main material for making pottery; Adding water to the Onggi-based powder of the main material prepared from the above step to form a viscous dough; molding and drying the dough; A first baking step of baking the dried material at a temperature range of 700 to 800 ° C; Drying the gauze produced through the first firing step, and then glazing the glaze produced in the main material producing step; A second baking step of re-baking the glazed material at a temperature range of 1150 to 1230 캜; And recovering the finished product after the second firing step.

The method for manufacturing pottery using basalt rock according to an embodiment of the present invention further includes a step of removing a foreign substance by dipping the object in water after the first firing step of the object so that the dust formed on the surface of the object in the drying and first firing And foreign matters.

Basalt used for pottery production using a basalt according to the embodiment of the present invention, the main component is _{SiO 2, Al 2 O 3,} Fe 2 O 3, MgO, an oxide CaO, Na ₂ O, TiO _2, K ₂ O It comprises a component, the foam composition, SiO ₂ 60 to 70 wt%, Al ₂ O ₃ 15 to 25 weight%, Fe ₂ O ₃ 5 to 10 wt%, CaO + MgO 0 to 6% by weight, Na ₂ O + And 1 to 10% by weight of K ₂ O.

The waste basalt used in the production of pottery using basalt rocks according to the embodiment of the present invention may be any one selected from the waste sludge generated in the processing of the extracted ore and the sludge sludge having a particle size ranging from 30 to 250 μm, Can be recycled at low cost without processing powder such as a ball mill or a jet mill.

The Onggi basin selected in the step of preparing the main material according to the embodiment of the present invention is characterized in that any one selected from the group consisting of fugitive clay and sankyu kaolin or a mixture thereof is used as the heat resistant base.

In the step of preparing the main material according to the embodiment of the present invention, the composition of the Onggi basin is 70 to 80% by weight of the heat-resistant base composed of any one of the clay and the kaolin or a mixture thereof, and 20 to 30% It is mixed to form a pottery containing pottery and basalt.

In the main material manufacturing step according to the embodiment of the present invention, the composition of the glaze is composed of 5 to 15 wt% of water, 35 to 40 wt% of ash, 35 to 40 wt% of basalt powder, and 15 to 25 wt% of loess powder .

The ash contained in the glaze composition according to the embodiment of the present invention is characterized in that the powder formed by burning vegetation is collected or recovered and filtered.

In addition, the method of the present invention may further include the step of forming an elongated ridge extending inwardly along the bottom surface of the article and filling the ridge with basalt powder, And the generated amount of far infrared ray is increased when heat is applied.

Another feature of the present invention is a basalt rock; A refractory material selected from the group consisting of obi clay and Sanskrit kaolin, or a mixture thereof; A pottery body formed by mixing the basalt and the heat resistant base; An elongated recess formed in the pot body; A molten basalt filling layer filled in the upper portion; And a glaze layer forming a surface of the pot body and containing a basalt component.

The basalt of Onggi produced using basalt according to the embodiment of the present invention is basalt which has a melting point of 1100 to 1160 ° C and melts at a temperature of 1100 to 1160 ° C and fuses between the base grains .

The glaze layer of Onggi produced using basalt rock according to the embodiment of the present invention is composed of 5 to 15% by weight of water, 35 to 40% by weight of ash, 35 to 40% by weight of basalt powder and 15 to 25% Is formed using a glaze.

It is characterized in that the yuak manufactured by using the basalt rock according to the embodiment of the present invention is composed of 5 to 15% by weight of water, 35 to 40% by weight of ash, 35 to 40% by weight of basalt powder and 15 to 25% .

The ash contained in the glaze component manufactured using the basalt rock according to the embodiment of the present invention is a filter powder formed by burning vegetation.

According to the method for manufacturing pottery using basalt and the method for producing pottery according to the embodiment of the present invention, since basalt components including minerals emitting a large amount of far-infrared rays in a warm state are included as main components of the pottery main body It has the effect of sustaining and maintaining the far-infrared emissivity at a high level which is beneficial to the human body. In addition, by producing pottery using basalt, pottery is nitrided to provide a hygienic pottery that is semi-permeable, has a high thermal conductivity and heat-release property, and transfers a large amount of far-infrared rays to the contents.

1 is a flow chart of an ongyo manufacturing process using basalt rockers according to an embodiment of the present invention;
Fig. 2 is an illustration of a veneer for making pottery according to an embodiment of the present invention. Fig.
3 is a partial cross-sectional view of a pottery that has been formed by completing a first firing and a second firing according to an embodiment of the present invention.
Fig. 4 is a distribution chart of the outer circle of the raw stone of Onggi according to the embodiment of the present invention. Fig.
5 is an exemplary view of a basalt filling layer included in Onggi according to an embodiment of the present invention.

The present invention is presented for utilizing basalt and waste basalt as a pottery material. The distribution of domestic basalts is mainly distributed in Cheolwon area and Jeju area in Gangwon province. There have been studies on the characteristics, reporting, research, and utilization of geological features including geological studies. Petrology and physical and chemical properties of basalt from the Cheolwon area (Kwon, Jae - Yeon 4 ('99 .6) pp.255-262, Kangwon National University, Korea).

Basalt is known to have a variety of therapeutic and antimicrobial activities such as easy control of humidity and inhibition of fungal growth, besides a large amount of far-infrared radiation, but its use and application are insufficient. In particular, basalt scattered throughout Cheorwon area in Gangwon province has produced a large amount of abandoned basalt rock after making primary souvenirs after being collected. Most of them are discharged or dusted by dust, causing pollution and environmental pollution.

The present invention facilitates stonitization of Onggi, including far-infrared and antimicrobial effects, by collecting or recycling the basalt as a material in the field of pottery.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 is a flow chart of a manufacturing process of a pottery using basalt, according to an embodiment of the present invention. Figure 2 is an illustration of the shape of the article made in accordance with an embodiment of the present invention. 3 is a cross-sectional view of a portion of a pot made according to an embodiment of the present invention.

Manufacturing method of pottery containing basalt composition

Clean and dry the collected basalt gravel or discarded basalt. The calcareous sludge in the pulverized basalt is filtered without washing and used as basalt powder. Then, dried basalt rock or lava basalt except crushed stone sludge is crushed and processed into a powder state.

According to the planetary ball milling or jet milling, the basalt can be pulverized to a particle size of 1 μm or less and can be mixed with other powders at a high mixing ratio.

The basalt powder processed into a powder phase is mixed with a pottery powder and a glaze to prepare a main material capable of making pottery. The main ingredients for making Onggi are Onggi bean janggwa and janggak, meaning the meaning of the main ingredients is Onggi beige and glaze.

First of all, the water is added to the powder of Onggi Powder to make a viscous dough, and the material (A) is molded and dried. Fig. 2 shows an example of a pot for pottery molded into a pottery (A) through the above-described working processes.

After mixing the Onggi device powder with the basalt powder, kneading and kneading the kneaded product to complete the molding of the article (A), the article is dried. The drying of the material can be carried out freely by natural drying or forced drying. In the case of natural drying, the drying time varies depending on season, but it ranges from about 1 to 3 days regardless of season. Forced drying is a method of increasing the temperature by putting it in a drying furnace and drying it with wind, which reduces the drying time compared with natural drying, but the drying condition is worse than the natural drying.

After drying of the article (A) is completed, the article is subjected to a first baking step in which the article is heated in the temperature range of 700 to 800 ° C. The preferred first baking temperature is around 700 to 750 占 폚. This corresponds to rough baking compared with the example of the ceramics manufacturing process.

The reason why the article is baked at a relatively low temperature (700 ° C to 750 ° C or more and a sintering temperature of 1100 ° C or more in general, manufactured by Onggi) is suitable for thickening the glaze on the article (A). That is, when the firing temperature is low, the absorption power of the glaze is improved. Therefore, if the firing temperature is lowered, it is advantageous to continuously operate the glazing system. For example, the glaze is sprayed several times with a spraying method, and the glaze is coated with 1 to 2 mm or more while increasing the thickness of the glaze.

After the first fired product (A) is dried again at about 700 to 750 ° C, the glaze containing the basalt produced in the main material production step is sieved.

It is preferable that the glaze is applied to the surface of the article (A) by applying a glaze several times over the surface of the article (A) by spraying the glaze several times while increasing the thickness of the glaze.

When the glazing system for the surface of the object A is completed, the object A is subjected to a second firing process in which the object A is re-fired in a furnace controlled at a temperature ranging from 1150 to 1230 ° C. Here, the baking time is not set but is set to about 10 hours or more. The second firing corresponds to chaebol burning.

3, the surface of the calcined body A is formed into a pottery body 110 containing a basalt component, and the surface of the pottery body 120 is covered with a glaze layer 120 containing a basalt component, (100).

The method of manufacturing pottery using basalt rock according to an embodiment of the present invention will be described in detail with reference to the following examples.

In the case where the object A having been subjected to the first firing process is immersed in water to remove a foreign substance, impurities such as foreign substances are removed from the surface of the object A to uniformize the glaze on the surface of the object So that it can be smoothly applied.

Basalt mixed with pottery and glazes

Basalt, as a main component contains an oxide component is SiO _2, Al ₂ O _3, Fe ₂ O _3, MgO, CaO, Na ₂ O, K ₂ O, the composition of SiO ₂ 60 to 70% by weight, Al ₂ O ₃ 15 to 25 weight%, Fe ₂ O ₃ 5 to 10 wt%, CaO + MgO 0 to 6% by _{weight, Na 2 O + K 2 O} 1 to 10 wt%, TiO ₂ 1 to 3% by weight based on the total weight of the basalt rocks. The mined or collected basalt will be able to meet the above composition, and the basalt ores can be ground to a range of 30 to 250 μm to form basalt powder.

Of lung basalt  uses

The pulverized basalt rock powder is selected from waste stones collected from waste stones, waste stones generated from gem stone processing, or stone dust sludge. Particularly, the stone dust sludge having a particle size range of 30 to 250 μm can be used as it is without going through pulverization and pulverization. This makes it possible to utilize basalt rocks at a low cost without any additional crushing. Generally, in the processing of basalt stone, about 50% or more of the ore is generated as waste sludge and stone sludge, and remains as industrial waste. Particularly, the stone sludge generated during the processing of gemstones is fine to the extent that the particle size of 75 μm or less is 65% and 75 to 250 μm is 34%, but it is caused by problems such as securing landfill, which generates a large amount of dust. This causes environmental problems such as air, soil and groundwater pollution. In the present invention, stone waste sludge having such fine particle size is discarded or left in the field, which is utilized as a useful resource for molding pottery. If necessary, the stone dust sludge may be processed into a fine particle powder of 1 탆 or less through a grinding operation such as a ball mill or a jet mill.

Basaltic Stone nitrification

Basalt or lava basalt is preferably selected from among basalt rocks having a melting point between 1100 and 1160 ° C. Basalt, which has a melting point between 1100 and 1160 ℃ in basalt, has a lower melting point than other rocks and minerals. Using this method, it is easy to fuse between the granules of Onggi during the firing process to stonitize the granular material, and the binding structure is completed by the close affinity between the Onggi granules and the basalt granules.

The pottery which is stonitized by basalt strengthens the intermolecular denseness so as to exhibit semi-permeability against moisture, increase the thermal conductivity and heat-release property, and transmit a large amount of far-infrared rays to the contents.

Possession of Onggi

The Onggi substrate comprises 60 to 80 wt% of SiO ₂ , 15 to 20 wt% of Al ₂ O ₃ , 3 to 5 wt% of Fe ₂ O ₃ , 1 to 3 wt% of K ₂ O, 0.1 to 1 wt% of Na ₂ O, 0.1 to 0.9% by weight of CaO, and 1 to 3% by weight of TiO ₂ . Particularly, it is preferable to use a mixture of a clay or a clay of Sancheong, which is classified as a heat resistant base, or a mixture thereof. When the heat-resistant base paper is used, it becomes possible to manufacture a pot that can withstand high temperatures.

Manufacture of main materials

It is preferable that the composition of the Onggi basin is prepared by mixing 70 to 80% by weight of the heat-resistant base material composed of any one of pentagonal clay and sagittal kaolin or a mixture thereof and 20 to 30% by weight of the basalt powder. When the excessive basalt powder is mixed, the defective rate may increase due to the shape distortion in the formation of the material (A). The blending ratio of 70 to 80% by weight of the heat-resistant base selected from the clay or the kaolin and 20 to 30% by weight of the basalt powder is mixed at a mixing ratio capable of smoothly molding the material while reducing the defects such as distortion As a preferable mixing ratio excluding moisture, it is preferable that the blending ratio of 70% by weight of heat resistant base and 30% by weight of basalt powder, or a mixture ratio of 80% by weight of heat resistant base and 20% by weight of basalt powder is suitable.

The composition of the glaze may be composed of 5 to 15% by weight of water, 35 to 40% by weight of ash, 35 to 40% by weight of basalt powder and 15 to 25% by weight of loess powder. Glazes use only materials obtained from nature in order to give eco-friendliness. Ashes are used to collect powdered materials that have been harvested from the vegetation. It is preferable to filter the remaining materials by burning the stones. The ashes remaining after the vegetation is burned, the organic matter burns, will be. Potassium, sodium and calcium, carbonates, phosphates and silicates.

The composition ratio is preferably 5 to 15% by weight of water, 35 to 40% by weight of ash bearing vegetation, 35 to 40% by weight of basalt powder, and 15 to 25% by weight of loess powder. Here, the loess powder prevents the flow of glaze on the surface of the object (A) and enhances the degree of flare. When the glaze is changed into a matte glaze depending on the situation, the amount of the loess powder is increased. It is preferable that the ash is collected by collecting or collecting the powder formed by burning vegetation, followed by filtration. Ash generally has a general function of covering the surface of a tobacco product to form a homogeneous silicate mixture which is heated and fused. Glazing is commonly referred to as glass lye and refers to a hard glass layer on the surface of ceramics. It gives aesthetics to the product, provides anti-pollution, chemical resistance, electrical resistance and mechanical strength. Its composition is composed of Al ₂ O ₃ , SiO ₂ , Na ₂ O _{3 and} others. Basalt contains a large amount of Al ₂ O ₃ , SiO ₂ , and Na ₂ O ₃ components, which are commonly used as glaze materials.

Formation of material

As shown in Fig. 2, in the molding of the article A, a step of forming a prime position B inward along the bottom surface of the article A, filling the prime position B with basalt powder, It is possible to further increase the amount of far-infrared rays emitted from the basalt component through the filling of the basalt powder with the basement rock (B) in the post-work process. In particular, in the case of the kitchen heating pot, As shown in FIG. 3, when the basalt filler layer C is formed on the center portion of the substrate A, the far infrared ray emissivity can be further increased as compared with the case of the planar type using the heating basin .

Onggi Products

3, the composition of the Onggi 100 according to the embodiment of the present invention is a combination of heat-resistant base, basalt and heat-resistant base materials selected from basalt, obaginous clay or sangha kaolin, or a mixture thereof, The molten basalt filler layer C filled in the prime seals 130 and the surface of the pot body 110 are formed and the basalt component And a glaze layer 120 contained therein. Reference numeral 140 denotes a lid which rests on the pot body 110.

Here, basalt is selected from among basalt rocks having a melting point of 1100 to 1160 ° C. The basalt melted between 1100 and 1160 ° C has a lower melting point than other minerals and rocks. Accordingly, it fuses between the heat-resistant base grains selected from the open-pit clay or the sankyo kaolin to facilitate the stoning of the heat-resistant base.

The glaze layer 130 is formed using a glaze composed of 5 to 15% by weight of water, 35 to 40% by weight of ash obtained by burning vegetation, 35 to 40% by weight of basalt powder and 15 to 25% by weight of loess powder .

FIG. 4 is an illustration showing far-infrared radiation distribution of Ongyo 100 including a basalt filling layer (C) according to an embodiment of the present invention.

The components of the pottery main body 110 include a heat-resistant ground component and a basalt component. The glaze layer 120 forming the surface of the pot frame 110 also includes a basalt component. Therefore, when heat is transmitted from the heat source 200 to the pot 100, the pot body 110 and the glaze layer 120 containing the basalt component are mixed with the far infrared rays through the entire pottery main body 110 in the R1 direction or the opposite direction Radiate. On the other hand, the basalt filling layer (C) filled in the central part of the Onggi main body (110) is thicker than the other parts and has a large amount of basaltic components laminated, thereby increasing the far infrared ray emitting amount R2 inthe central part. In the case of a kitchen heating pot (100), it is possible to design a desired sanitary pottery by concentrating the amount of far-infrared radiation on a local part without causing structural defects of the entire pottery main body (110).

5 shows another embodiment of the basalt filling layer C according to the embodiment of the present invention. As shown in FIG. 5, a plurality of supports 150 having a shape protruding to the upper portion of the elongated seat 130 may be provided on the elongated seat 130 formed on the pot body 110, for example, C). ≪ / RTI >

The method for producing pottery using basalt and the method for producing pottery according to an embodiment of the present invention includes a basalt composition including a mineral material that emits a large amount of far infrared rays in a warm state as a main component of the pottery body, And the antimicrobial effect is excellent. In addition, by making pottery using basalt, pottery is nitrided to provide semi-permeability, thermal conductivity and thermal properties, and a large amount of far-infrared rays are delivered to the contents. It also reduces the environmental pollution by increasing the recyclability of discarded waste basalt.

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 taken by way of illustration, .

A: Material B: Senior position
C: Basalt filling layer 100: Pottery
110: Onggi body 120: Glaze layer
130: Senior seat 140: Lid
150: Support

Claims (15)

Washing the extracted basalt gemstones or abandoned basalt rocks, and drying the dried basalt gemstones or the pulverized basalt rocks into powder particles; Mixing the basalt powder processed into a powder phase with an inorganic base powder and a glaze to prepare a main material for making pottery; Adding water to the Onggi-based powder of the main material prepared from the above step to form a viscous dough; molding and drying the dough; A first baking step of baking the dried material at a temperature range of 700 to 800 ° C; Drying the gauze produced through the first firing step, and then glazing the glaze produced in the main material producing step; A second baking step of re-baking the glazed material at a temperature range of 1150 to 1230 캜; Wherein the composition of the glaze is 5 to 15% by weight of water, 35 to 40% by weight of ash obtained by burning vegetation, 35 to 40% by weight of basalt powder, and 15 to 25% by weight of loess powder. The method according to claim 1,
And removing foreign matter by immersing the object in water after the first firing step. delete The method according to claim 1,
Wherein the waste basalt rock powder is either a waste slag generated in the processing of the extracted gemstones or a stone sludge having a particle size in the range of 30 to 250 mu m, or a basalt mixed with the same. The method according to claim 1,
Wherein the basalt powder or the pulverized basalt powder is basalt rock having a melting point of between 1100 and 1160 ° C. The method according to claim 1,
The method of producing pottery using the basalt pot which is a mixture of any one selected from the group consisting of clay and clay, and a mixture of them, is used as the heat resistant base selected in the main material producing step. The method according to claim 1,
In the main material producing step, the composition of the Onggi basin is 70 to 80% by weight of the heat-resistant base composed of any one of the ou clay and the sophora kaolin or a mixture thereof, and the basalt composed of the mixture of 20 to 30% A method of manufacturing an Onggi machine to be used. delete The method according to claim 1,
Wherein the ash is collected by collecting or collecting the powder formed by burning the vegetation, and then filtering and using the basalt. The method according to claim 1,
In the material forming step, a stepped portion is formed along the bottom surface of the object. And filling basalt rock powder with the basalt rocks. An onion prepared by using the basalt produced by the method of any one of claims 1 or 2. Basalt powder; A refractory material selected from the group consisting of obi clay and Sanskrit kaolin, or a mixture thereof; A pottery body formed by mixing the basalt powder and the heat-resistant base paper; An elongated recess formed in the pot body; A molten basalt powder filling layer filled in the upper portion; And a glaze layer forming a surface of the pot body and containing a basalt powder component, wherein the glaze layer comprises 5 to 15% by weight of water, 35 to 40% by weight of ash obtained by burning vegetation, 35 to 40% by weight, and 15 to 25% by weight of loess powder, is used as the gypsum. 13. The method of claim 12,
The basalt powder was produced using basalt rock having a melting point of 1100 to 1160 ° C. delete A glaze made from basalt composed of 5 to 15% by weight of water, 35 to 40% by weight of ash obtained by burning vegetation, 35 to 40% by weight of basalt powder and 15 to 25% by weight of loess powder.

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