KR100873029B1 - A chinaware produced using natural porcelain - Google Patents

Abstract

Chinaware produced using natural porcelain is provided to show an esthetic sense besides a practicality as the chinaware by expressing abundant texture and colors and supplying the natural porcelain suitable for a glaze used for producing the chinaware. Chinaware produced using natural porcelain is manufactured by coating a glaze at articles manufactured using the natural porcelain and performing a co-fired step. The porcelain is manufactured by mixing 20 ~ 50 wt% of Sancheon-soil having a component ratio of a SiO2 52.06%, Al2O3 30.04%, Fe2O3 2.34%, MgO 0.84%, CaO 2.84%, Na2O 0.99%, K2O 0.73%, P2O5 0.02%, TiO2 0.33%, MnO 0.04% and Ig.loss 9.77% and 50 ~ 80 wt% of Buncheong-soil having a component ratio of SiO2 63.21%, Al2O3 20.95%, Fe2O3 3.89%, MgO 0.80%, CaO 1.00%, Na2O 0.58%, K2O 1.91%, TiO2 0.69%, MnO 0.03% and Ig.loss 6.94%.

Description

Ceramics made of natural materials {A CHINAWARE PRODUCED USING NATURAL PORCELAIN}

The present invention relates to ceramics that can provide rich colors and textures by providing a suitable material for glazing by using any one or more natural materials selected from sancheolto, buncheongto, cheongjato.

As a raw material for producing pottery, materials are generally classified into pottery clay, stone clay, and magnetic clay, and in particular, the magnetic substrate is fired in the range of 1,220 to 1,350 ° C. Body material has low strength before firing, high dry shrinkage rate, and bentonite may be added to increase plasticity, which must be considered when forming spinning wheel.

The prior art related to such possession is Korea Patent Publication 1996-0010579 (published date 1996.04.20) 'Heat-resistant ceramic material and manufacturing method of heat-resistant ceramic using the same' and Republic of Korea Patent Registration 10-0279142 (Notice date 2001.04.02) ' Porous composition for forming a three-dimensional pattern of porcelain ', etc., in the case of the Republic of Korea Patent Publication 1996-0010579 provides a porcelain base required for the manufacture of porcelain excellent in heat shock resistance, in the case of the Republic of Korea Patent No. 10-0279142 To provide a base material composition used to form a three-dimensional pattern in, the patents are to constitute the base according to special purposes, such as thermal shock resistance, three-dimensional pattern formation, rich texture and There is a disadvantage that it is not suitable as a material for expressing color.

In order to solve the above problems, the present invention is to provide a porcelain that can provide aesthetics in addition to the practicality as a porcelain by expressing a rich texture and color by providing a natural base suitable for glaze used in the manufacture of porcelain.

In order to achieve the above object, the present invention is produced by applying a glaze to the material prepared by using a base material and is fired through the firing process, the base material is 20 ~ 50 wt% of sancheung soil, 50 ~ 80 wt% of The main technical composition is ceramics manufactured by using natural materials, which are composed of mixed or 12 ~ 26 wt% of acidic soil, 35 ~ 45 wt% of powdered clay, and 32 to 53 wt% of blue clay.

Hereinafter, a method of manufacturing porcelain using the porcelain base will be described.

It is composed of 20 ~ 50 wt% of acidic loess and 50 ~ 80 wt% of bitumen soil, or mixed with 12 ~ 26 wt% of bitumen soil, 35 ~ 45 wt% of bitumen soil, and 32 ~ 53 wt% of blue clay. Creating steps,

A molding and shaping step of molding the holding composition in a semi-dried state with a spinning wheel, attaching an ornament to the molding, trimming the attached portion with an orthopedic knife, and wiping with a brush or sponge to clean the seam;

And before the complete drying of the molding and shaping process pottery in the form of embossed, inlaid and painted in a semi-dry state after filling the sackcloth, patterning step of engraved after applying the sackcloth,

After the pattern is formed, the glaze of the dried porcelain is polished with sandpaper and glazed on the surface of the porcelain,

The glazed ceramics were heated to 850-900 ° C. for 7-8 hours, and then heated to 950 ° C. for 8 hours and 30 minutes using a first-time roasting and baking at a maximum of 900 ° C. for 25-40 minutes, and a 0.7-Lube-type flame kiln. After firing oxidized after 950 ℃ is baked through a reducing step to bake a conglomerate baked for 30 minutes at a final temperature of 1,230 ℃.

Raw material selection and material composition stage

Selection of raw materials for manufacturing ceramics prevents deformation and breakage due to plasticity, denseness of particles, shrinkage during drying and firing, and manufacturing high quality ceramics with excellent color and texture due to glaze treatment. For this purpose, the appropriate blending ratio of acid or Chinese clay should be considered.

Porcelain bases are made of a mixture of sancheolto and buncheolto, or use of a mixture of sancheongto, buncheong and cheongjato.

First, let's take a look at the porcelain holdings made from a mixture of sancheong and buncheong.

Sancheong soil is also referred to as `` Sancheong-gun Obu-myeon '' also called Obu Clay, SiO ₂ 52.06%, Al ₂ O ₃ 30.04%, Fe ₂ O ₃ 2.34%, MgO 0.84%, CaO 2.84%, Na ₂ O 0.99%, K _It is a primary clay collected from Sancheong-gun, Gyeongbuk, where the distribution of particles with the composition ratio of ₂ O 0.73%, P ₂ O ₅ 0.02%, TiO ₂ 0.33%, MnO 0.04%, and Ig.loss 9.77%. Acid and blue soil has high fire resistance and low dry and plastic shrinkage, but has large absorption of sand particles. The grains are 80 to 95 mesh, and when the grains exceed 95 mesh, the grains are fine and the shrinkage increases during the firing process, which may affect the quality of ceramics. It is preferable.

The bitumen is used in the range of 20 ~ 50 wt% with respect to the bitumen, if less than 20 wt% may lower the fire resistance of the porcelain base, if the use exceeds 50 wt% the color of the porcelain is very Since it may appear dark, the acidic loess is preferably used in the range of 20 to 50 wt% with respect to the bitumen.

The fine soil is SiO ₂ 63.21%, Al ₂ O ₃ 20.95%, Fe ₂ O ₃ 3.89%, MgO 0.80%, CaO 1.00%, Na ₂ O 0.58%, K ₂ O 1.91%, TiO ₂ 0.69%, MnO 0.03 %, Ig.loss 6.94%, which is the clay which can contrast the color of clay and clay when painting or painting with white clay. The powdered clay has a property of shrinking about 13.5% when a pressure of 500t or more is applied. The bitumen soil is used in the range of 50 to 80 wt% with respect to the bitumen soil, if less than 50 wt% may have a lower fire resistance, and if it exceeds 80 wt%, the color and texture of the glaze treatment of porcelain Since it may fall, it is preferable that the powdered soil is used in the range of 50 to 80 wt% with respect to the acidic soil.

Next, we will look at the porcelain possession made of a mixture of sancheongto, buncheongto and cheongjato.

Sancheongto and buncheongto are mixed with the above-mentioned cheongjato using the same as described above, and look at the cheongjato as follows.

The blue clay is SiO ₂ 59.83%, Al ₂ O ₃ 25.18%, Fe ₂ O ₃ 2.91%, MgO 0.77%, CaO 1.25%, Na ₂ O 0.62%, K ₂ O 1.81%, TiO ₂ 0.49%, MnO 0.03 %, Ig.loss 7.11%, with a little iron content and high fire resistance, which can be fired at 1250 ℃ or higher.

In addition, when pressure of 500t or more is applied, it has a property of shrinking by about 12%, and 32 to 54 wt% of the total weight of the porcelain body is used, and when it is less than 32 wt%, durability and fire resistance may decrease, and 54 wt% If it exceeds the high quality color and texture through the glaze it may be difficult to use the blue clay is preferably used in the range of 32 to 54 wt% based on the total weight of the porcelain.

Molding and shaping step

After passing through the stage of forming the body, the body mass is semi-dried and then molded into a spinning wheel. You can do 5 strokes.

The molded pottery is thus subjected to a shaping process, which is a process of attaching an ornament to a completed molding, trimming the attached portion with a shaping knife, and wiping it with a brush or sponge to clean the seam.

Glyph Formation Stage

Embossing in semi-dry state before completely drying the pottery after the molding and shaping process, filling inlaid soil after taking inlaid carving and painting, the harmonic technique is engraved engraved after applying the clay. The crematorium is any one or more selected from white crematorium, black crematorium or red crematorium.

The crematorium is high in whiteness, has a good covering ability to mask the surface and surface defects, and has strong adhesion even during the shrinkage period with drying and firing, so that it cannot be easily cracked or peeled off.

The white crematorium is composed of 40 to 60 wt% of silica, 20 to 45 wt% of bark, 12 to 25 wt% of feldspar, and 0.2 to 1.5 wt% of alumina.

The silica is a generic term for minerals and rocks containing SiO ₂ as a main component, and is a main oxide having a content of 59.12% in the rock zone, most of which forms silicates. The amount of silica used to form white crematorium is 40 to 60 wt%, and the coating power may be lowered when less than 40 wt%, and when it exceeds 60 wt%, cracking may occur during the firing process. Preferably used at ˜60 wt%.

The wood is a mud obtained by weathering and decomposing granite rocks, and is used at 20 to 45 wt% with respect to the total weight of white crematorium soil, and when it is less than 20 wt%, the coating power may be lowered, and when it exceeds 45 wt%. Since the crack may occur during the firing process, the wood is preferably used in 20 ~ 45 wt%.

The feldspar is any one or more selected from potassium feldspar (orthoclase), sodium feldspar (albite), calcium feldspar (anorthite), barium feldspar (celsian), plagioclase, lithium feldspar (petalite) and nepheline. It is used at ~ 25 wt%, if less than 12 wt% may reduce the coating power, if it exceeds 25 wt% may cause cracks during the calcination process, the feldspar is used at 12 ~ 25 wt% desirable.

The alumina is used in 0.2 ~ 1.5 wt% with respect to the total weight of the white sackcloth, if less than 0.2 wt% the coating power may be reduced, if it exceeds 1.5 wt% may cause cracks during the firing process, Alumina is preferably used at 0.2 ~ 1.5 wt%.

The black crematorium is 3 to 15 wt% of bleached clay, 35 to 55 wt% of apple tree, 35 to 55 wt% of silica, 5 to 15 wt% of red earth, 0.1 to 0.7 wt% of iron, 0.25 to 0.95 wt% of chromium, and 0.01 to chromium. It is formulated in a mixture of 0.10 wt%.

The white clay is used in 3 ~ 15 wt% with respect to the total weight of the black crematorium, which is less than 3 wt% coating power may fall, if more than 15 wt% may cause cracks during the firing process The white clay is preferably used in an amount of 3 to 15 wt%.

The wood is used in 35 ~ 55 wt% with respect to the total weight of the black crematorium, when less than 35 wt% may fall coating power, if it exceeds 55 wt% may cause cracks during the firing process, The trees are preferably used at 35-55 wt%.

The silica is used at 35 to 55 wt% with respect to the total weight of the black crematorium soil, and if less than 35 wt%, the coating power may drop, and if it exceeds 55 wt%, cracking may occur during the firing process. The silica is preferably used at 35 to 55 wt%.

The red soil is used in 5 to 15 wt% with respect to the total weight of the black crematorium, and if less than 5 wt%, the coating power may fall, and if it exceeds 15 wt%, cracking may occur during the firing process. Red soil is preferably used at 5 to 15 wt%.

The iron is used at 0.1 to 0.7 wt% with respect to the total weight of black crematorium soil, and if less than 0.1 wt%, the coating power may drop, and if it exceeds 0.7 wt%, cracking may occur during the firing process. Iron is preferably used at 0.1 to 0.7 wt%.

The cobalt is used in 0.25 ~ 0.95 wt% with respect to the total weight of the black crematorium, when less than 0.25 wt% may fall the coating power, if it exceeds 0.95 wt% may cause cracks during the firing process, Cobalt is preferably used at 0.25 to 0.95 wt%.

The chromium is used in an amount of 0.01 to 0.10 wt% based on the total weight of the black crematorium soil, and when the chromium is less than 0.01 wt%, the coating power may drop, and when the chromium exceeds 0.10 wt%, cracking may occur during the firing process. Chromium is preferably used at 0.01 to 0.10 wt%.

The end of the pattern goes into the drying process, which is a process of evaporating the moisture of the material, which is a very important step in the process of making ceramics. In addition, it is thicker to give a weight than ordinary materials, so it is easy to crack and break during drying, so it is important to dry it slowly in the shade with a cloth or paper placed on the floor to prevent it.

Glazing Treatment Step

Check whether the damaged items are damaged before starting oiling, and grind the yeondang (where to eat) with sandpaper and trim it.

Apply latex (chemicals) with a brush to the bottom of the porcelain, and remove it after oiling to make it clean and give a good feeling of ink and ink. Put a red dot on the print door before painting. Afterwards, glaze works are carried out by dipping and spraying.

Seed oil is a process that glazes on the surface of a product, and glaze is a glassy fungate that is fused to the surface of a product. The glaze used in the prototype is natural celadon-based oil, which is composed of a mixture of 20 to 50 wt% feldspar, 10 to 25 wt% limestone, 15 to 30 wt% ash, and 12 to 26 wt% clay. 50 wt% and water (B) 50 to 60 wt% of a mixture used, or

Or glaze raw material (A) 40 to 50 wt% by mixing 20 to 50 wt% of feldspar, 10 to 25 wt% of limestone, 15 to 30 wt% of ash, 12 to 26 wt% of water, 12 to 23 wt% of kaolin And water (B) 50 to 60 wt% of the mixed composition is used.

Firing stage

The firing process is divided into roasting and chaebol, and the roasting is to increase the strength and absorbency of ceramics and to promote glaze and adhesion, which is convenient when refueling. After heating up to 900 degreeC, it bakes for 25 to 40 minutes at the maximum 900 degreeC.

At this time, as the firing method, any one selected from oxidation, reduction, or neutral is selected.

After the first roasting is completed, the chaebol roasting is performed. The chaebol roasting is a very important process. Since the production and quality of the product are determined according to the firing, the firing should be fired at the correct temperature. After baking oxidized to 950 ℃ using a 0.7-Lube flame-type kiln, it is calcined after 950 ℃ with a reducing salt and calcined at a final temperature of 1,230 ℃ for 30 minutes.The total time required for firing chaebol is 8 hours 30 minutes. to be.

The oxidizing oxide is a firing method for supplying sufficient air into the combustion chamber to bake the gas in a state where the fuel can be completely burned. The oxygen oxide is included in the base or glaze by improving the air flow in the kiln to supply oxygen sufficiently. Refers to the oxidation of the metal.

In addition, reducing firing is a firing method that reduces the oxygen supply and increases the amount of fuel to bake the gas in an incomplete combustion state.The temperature inside the kiln is uniformed to change the chemical components contained in the glaze and clay to obtain a good color. There is to sleep.

As described above, the ceramics produced by the manufacturing method of the ceramics of the present invention is excellent in durability and quality, as well as writers who work as well as the general public can also be useful for leisure activities, beautiful appearance as a ceramic product, It is possible to express oriental work through pottery itself, providing aesthetics that can provide crafts with both practicality and aesthetics.

Hereinafter, the technical configuration of the base used in the manufacture of ceramics will be described in detail through the embodiment.

Example 1

Natural soils are formed by mixing 45 kg of acid and 55 kg of clay.

Example 2

32 kg of fresh blue soil, 35 kg of powdered blue soil and 33 kg of blue clay are mixed to form a base material.

Claims (5)

It is manufactured through the firing process by applying a glaze to the material manufactured using a base, The body is SiO ₂ 52.06%, Al ₂ O ₃ 30.04%, Fe ₂ O ₃ 2.34%, MgO 0.84%, CaO 2.84%, Na ₂ O 0.99%, K ₂ O 0.73%, P ₂ O ₅ 0.02%, TiO ₂ 0.33%, MnO 0.04%, Ig.loss 9.77% of the component ratio, 20 ~ 50 wt% of the acidic soil having a particle size of 80 ~ 95mesh, SiO ₂ 63.21%, Al ₂ O ₃ 20.95%, Fe ₂ O ₃ 3.89%, MgO 0.80%, CaO 1.00%, Na ₂ O 0.58%, K ₂ O 1.91%, TiO ₂ 0.69%, MnO 0.03%, Ig. Loss Pottery manufactured using natural materials, characterized in that the mixture is composed of 50 ~ 80 wt% of powdered clay having a component ratio of 6.94%. delete delete delete delete