Antique porcelain and its preparation process

Abstract

The application relates to the technical field of ceramics, in particular to an antique ceramic and a preparation process thereof. A body surface of the antique ceramic is sequentially covered with cosmetic clay, transparent glaze and antique glaze. The body is made of calcined kaolin, zijin clay and other raw materials, presents the ancient porcelain body color and the natural texture containing impurities, and simultaneously improves the sintering stability and the compression resistance. The transparent glaze is between the cosmetic clay and the antique glaze, serves as the expansion coefficient buffer layer to ensure that the body surface is naturally peeled off, and avoids that the antique glaze excessively fills the bubble holes of the cosmetic clay. The antique glaze cooperates with specific colorants to accurately restore the classic color of Song Dynasty celadon or Ming and Qing Dynasty blue and white; the soil stains simulate the natural iron stains and calcium stains formed by underground burying; the sand flow erosion equipment simulates the uniform grinding marks formed by surface erosion; finally, the effect of "ancient and old body quality, natural body surface, soil stains into joints and real grinding marks" is realized, and the level and the natural aging characteristics of the ancient porcelain years are completely restored.

Description

Technical Field

[0001] This invention relates to the field of ceramic technology, specifically to antique-style ceramics and their preparation process. Background Technology

[0002] Existing antique-style ceramics have significant limitations in simulating the characteristics of ancient porcelain: the body often exhibits an "overly delicate" modern texture due to improper raw material selection and processing techniques, making it difficult to reproduce the grayish-yellow and bluish-gray base color and the natural state containing fine impurities of ancient porcelain bodies, and is prone to cracking due to unstable shrinkage during firing; in the glaze design, the traditional method of using transparent glaze as the surface glaze cannot preserve the natural distribution of air bubbles in the underlying layer, nor can it balance the difference in expansion coefficients between the body and the glaze layer, resulting in harsh crazing or glaze peeling; the aging process mostly relies on artificial surface polishing or chemical corrosion, failing to logically simulate the natural aging process of ancient porcelain from the body and glaze layers through long-term burial and surface erosion, resulting in "fake soil stains, hard polishing marks, weak sense of layering," and an overall lack of the natural sense of age. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems through antique-style ceramics and their preparation process.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the antique ceramic includes a body, the surface of which is sequentially covered with slip, transparent glaze and antique glaze.

[0005] Preferably, the matrix comprises the following raw materials in parts by weight: 20-25 parts calcined kaolin, 6-8 parts feldspar, 20-30 parts purple clay, 5-7 parts sagger clay, and 3-5 parts quartz sand.

[0006] Preferably, the cosmetic clay comprises the following raw materials in parts by weight: 50-60 parts kaolin, 20-30 parts purple clay, 10-12 parts sagger clay, and 5-8 parts sawdust.

[0007] Preferably, the transparent glaze comprises the following raw materials in parts by weight: 35-40 parts feldspar, 20-30 parts quartz, 8-10 parts kaolin, 3-5 parts lithium carbonate, 1-3 parts sodium carbonate, 3-5 parts boric acid, 2-4 parts borax, 3-6 parts zinc oxide, 2-5 parts calcined alumina, and 3-5 parts talc. The antique glaze comprises the following raw materials in parts by weight: 35-40 parts feldspar, 20-30 parts quartz, 25-30 parts clay, 10-15 parts pine ash, 5-8 parts limestone, and 4-6 parts colorant.

[0008] Preferably, the colorant comprises the following raw materials in parts by weight: 2-3 parts iron oxide and 1-2 parts tin oxide.

[0009] Preferably, the colorant comprises the following raw materials in parts by weight: 0.3-0.8 parts cobalt oxide and 3-5 parts zinc oxide.

[0010] The preparation process of antique-style ceramics includes the following steps:

[0011] Step a, Preparation of the body: The body is made by hand-throwing or molding;

[0012] Step b, Applying slip: Pour a layer of slip slurry onto the surface of the body and bisque-fire at 700-800℃ for 2-3 hours;

[0013] Step c: Apply a transparent glaze to the surface of the slip and let it dry;

[0014] Step d: Apply an antique glaze over the transparent glaze and dry.

[0015] Step e: Firing the glaze in the kiln;

[0016] Step f: Antique patina treatment;

[0017] Step g: Abrasion and aging;

[0018] Step h, post-processing, yields antique-style ceramics.

[0019] Preferably, in step b, the raw materials of the cosmetic clay and water are prepared into a cosmetic clay slurry at a mass ratio of 1:3, stirred evenly before use, and then poured onto the surface of the clay body.

[0020] Preferably, step f, the soil aging process specifically includes the following steps:

[0021] Step 1: Prepare humus slurry: Mix forest humus and red soil at a mass ratio of 3:1, pass through a 100-mesh sieve to remove stones, stir soil and water at a mass ratio of 1:3 to form a slurry, let stand for 2-3 hours, take the upper suspension, and keep the bottom coarse particles for later use.

[0022] Step 2, Potassium permanganate permeation treatment: Mix the suspension with potassium permanganate at a mass ratio of 100:1-3, stir until completely dissolved, immerse the fired ceramic completely in the solution, seal and let stand for 48-72 hours at a temperature of 20-25℃.

[0023] Step 3: Place the solution from Step 2 and the ceramic into a high-pressure cooker, and add the bottom coarse-particle soil and water from Step 1, ensuring the liquid level covers the ceramic. Pressurize to 0.15 MPa and maintain the temperature at 120°C for 2 hours. After cooking, turn off the heat and allow the temperature and pressure to decrease.

[0024] Preferably, in step g, the abrasive aging process specifically includes the following steps: using a simulated quicksand erosion device for abrasive aging, the simulated quicksand erosion device including an erosion tank, a ceramic fixing frame, a sand-water separator, a return material conveyor, a sand-water mixer, a return pump, and a return pipe, the ceramic fixing frame being rotatably mounted in the erosion tank, the sand-water separator and the return pump being located at the end of the erosion tank, the sand-water mixer being located at the front end of the erosion tank, the two ends of the return material conveyor being connected to the sand-water separator and the sand-water mixer respectively, the two ends of the return pipe being connected to the return pump and the sand-water mixer respectively, the inner wall of the erosion tank being provided with a rubber pad, and the bottom of the erosion tank being inclined at 5°.

[0025] As described above, the antique-style ceramics and their preparation process provided by this invention have the following beneficial effects: the body is made of calcined kaolin, purple clay and other raw materials, presenting the natural texture of ancient porcelain body color and impurities, while improving firing stability and compressive strength; the transparent glaze is between slip and antique glaze, serving as a buffer layer for expansion coefficient to ensure natural crackling without peeling, and avoiding excessive filling of slip air bubbles by the antique glaze; the antique glaze, combined with specific colorants, accurately restores the classic colors of Song Dynasty celadon or Ming and Qing Dynasty blue and white porcelain; the soil staining and aging process simulates underground burial to form natural iron stains and calcium spots, and the simulated quicksand washing equipment simulates surface erosion to form uniform wear marks, ultimately achieving the effect of "antique body, natural crackling, soil staining into the cracks, and realistic wear marks", completely restoring the layered feel and natural aging characteristics of ancient porcelain. Detailed Implementation

[0026] The present invention will be further described below through specific embodiments.

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] This invention relates to antique-style ceramics, comprising a body, the surface of which is sequentially covered with slip, a transparent glaze, and an antique glaze. Unlike conventional ceramics where the transparent glaze is used as a top glaze, this invention uses the transparent glaze as a base glaze. Its function is as follows: Traditionally, the transparent glaze is applied as an outer layer to protect the internal colored glazes. However, the use and function of the transparent glaze in this invention are drastically different. In this invention, the transparent glaze is applied between the slip and the antique glaze, which prevents the air bubbles in the slip from being overfilled or eroded by the upper antique glaze during high-temperature firing, thus preserving the morphology and distribution of the air bubbles. At the locations of glaze cracking, the air bubbles in the slip can be directly observed or indirectly revealed through the high transparency of the transparent glaze. The difference in the coefficients of thermal expansion between the body and the antique glaze is significant, making direct contact prone to... Excessive cracking and even peeling of the glaze can lead to glaze surface cracking. Transparent glaze, with its moderate coefficient of expansion, acts as a "buffer layer" to balance the stress difference between the body and the antique glaze. This ensures that the antique glaze forms natural cracks due to the difference in expansion coefficients, while preventing excessive cracking that extends to the body and causes structural damage. This makes the glaze cracking more closely resemble the "natural and well-defined cracks" characteristic of ancient porcelain. The high transparency of the transparent glaze does not interfere with the color expression of the antique glaze; instead, it enhances the "warmth" of the antique glaze in the following ways: First, the transparent glaze melts to form a uniform glass phase, making the antique glaze spread more evenly on its surface. Second, its glass phase can create a slight light refraction superposition with the antique glaze, weakening the "glare" of modern glazes. This invention's antique ceramics simulate the aging characteristics of ancient ceramics during long-term burial (underground environment) and abrasion (surface sand and water erosion), achieving an effect of "ancient body and natural traces," avoiding a mechanical or artificial feel, and closely resembling the age-related layers of genuine artifacts.

[0029] The body comprises the following raw materials by weight: 20-25 parts calcined kaolin, 6-8 parts feldspar, 20-30 parts purple clay, 5-7 parts saggar clay, and 3-5 parts quartz sand. The antique aging process begins with the body, mimicking the characteristics of ancient porcelain. The purple clay contains 3%-5% iron, and the calcined kaolin has had its crystal water removed, resulting in excellent volume stability during firing, reducing shrinkage cracks and enhancing interparticle bonding and compressive strength. The saggar clay reduces the whiteness of the body, presenting ancient porcelain colors such as grayish-yellow and bluish-gray. After mixing, the raw materials are sieved through an 80-mesh sieve, retaining a small amount of coarse particles through relatively large pores, simulating the presence of fine impurities in ancient porcelain. Feldspar is the core flux, lowering the liquid phase formation temperature during firing and promoting particle fusion.

[0030] The slip comprises the following raw materials by weight: 50-60 parts kaolin, 20-30 parts purple clay, 10-12 parts saggar clay, and 5-8 parts sawdust. A layer of slip is applied to the surface of the clay body. The sawdust added to the slip forms air bubbles after firing, simulating the rough, porous texture of ancient wood-fired ware. The sawdust is pulverized and passed through a 100-mesh sieve to avoid glazing defects caused by excessively large particles.

[0031] The transparent glaze comprises the following raw materials in parts by weight: feldspar 35-40 parts, quartz 20-30 parts, kaolin 8-10 parts, lithium carbonate 3-5 parts, sodium carbonate 1-3 parts, boric acid 3-5 parts, borax 2-4 parts, zinc oxide 3-6 parts, calcined alumina 2-5 parts, and talc 3-5 parts. The antique glaze comprises the following raw materials in parts by weight: feldspar 35-40 parts, quartz 20-30 parts, clay 25-30 parts, pine ash 10-15 parts, limestone 5-8 parts, and colorant 4-6 parts. Antique-style glazes need to achieve a glaze effect that is "opaque, naturally crackled, and warm in color". Pine ash contains potassium and calcium elements, which can improve the fluidity and warmth of the glaze and lower the melting temperature of the glaze to 1200-1280℃. Limestone can adjust the expansion coefficient of the glaze. By utilizing the difference in expansion coefficients between the body and the glaze, the glaze can naturally crack after firing. After cracking, it is not treated for the time being, leaving room for the subsequent "soil seeping into the cracks".

[0032] The colorant comprises the following raw materials in parts by weight: 2-3 parts iron oxide and 1-2 parts tin oxide. Adding this colorant imparts a celadon or pale green glaze, reminiscent of Song Dynasty celadon. The addition of tin oxide enhances opacity and avoids the glassy luster of modern glazes.

[0033] The colorant comprises the following raw materials in parts by weight: 0.3-0.8 parts cobalt oxide and 3-5 parts zinc oxide. Adding this colorant imitates the blue and white glaze of the Ming and Qing dynasties. Cobalt oxide controls the concentration of the blue color, presenting a "white with a bluish tinge" duck-egg blue base color; zinc oxide adjusts the opacity, reducing the glaze brightness to a semi-matte finish.

[0034] The following are specific examples of antique-style ceramics:

[0035] Specific Embodiment 1: The body comprises the following raw materials in parts by weight: 20 parts calcined kaolin, 6 parts feldspar, 20 parts purple clay, 5 parts sagger clay, and 3 parts quartz sand; the slip comprises the following raw materials in parts by weight: 50 parts kaolin, 20 parts purple clay, 10 parts sagger clay, and 5 parts sawdust; the transparent glaze comprises the following raw materials in parts by weight: 35 parts feldspar, 20 parts quartz, 8 parts kaolin, 3 parts lithium carbonate, 1 part sodium carbonate, 3 parts boric acid, 2 parts borax, 3 parts zinc oxide, 2 parts calcined alumina, and 3 parts talc; the antique glaze comprises the following raw materials in parts by weight: 35 parts feldspar, 20 parts quartz, 25 parts clay, 10 parts pine ash, 5 parts limestone, and 4 parts colorant; the colorant comprises the following raw materials in parts by weight: 2 parts iron oxide and 1 part tin oxide.

[0036] Specific Embodiment Two: The body comprises the following raw materials in parts by weight: 25 parts calcined kaolin, 8 parts feldspar, 30 parts purple clay, 7 parts sagger clay, and 5 parts quartz sand; the slip comprises the following raw materials in parts by weight: 60 parts kaolin, 30 parts purple clay, 12 parts sagger clay, and 8 parts sawdust; the transparent glaze comprises the following raw materials in parts by weight: 40 parts feldspar, 30 parts quartz, 10 parts kaolin, 5 parts lithium carbonate, 3 parts sodium carbonate, 5 parts boric acid, 4 parts borax, 6 parts zinc oxide, 5 parts calcined alumina, and 5 parts talc; the antique glaze comprises the following raw materials in parts by weight: 40 parts feldspar, 30 parts quartz, 30 parts clay, 15 parts pine ash, 8 parts limestone, and 6 parts colorant; the colorant comprises the following raw materials in parts by weight: 0.8 parts cobalt oxide and 5 parts zinc oxide.

[0037] Specific Embodiment 3: The body comprises the following raw materials in parts by weight: 22 parts calcined kaolin, 7 parts feldspar, 25 parts purple clay, 6 parts sagger clay, and 4 parts quartz sand; the slip comprises the following raw materials in parts by weight: 55 parts kaolin, 25 parts purple clay, 11 parts sagger clay, and 6 parts sawdust; the transparent glaze comprises the following raw materials in parts by weight: 37 parts feldspar, 25 parts quartz, 9 parts kaolin, 4 parts lithium carbonate, 2 parts sodium carbonate, 4 parts boric acid, 3 parts borax, 5 parts zinc oxide, 4 parts calcined alumina, and 4 parts talc; the antique glaze comprises the following raw materials in parts by weight: 37 parts feldspar, 25 parts quartz, 28 parts clay, 12 parts pine ash, 7 parts limestone, and 5 parts colorant; the colorant comprises the following raw materials in parts by weight: 0.5 parts cobalt oxide and 4 parts zinc oxide.

[0038] The preparation process of antique-style ceramics includes the following steps:

[0039] Step a, Preparation of the body: The body is made by hand-throwing or molding;

[0040] Step b, Applying slip: Pour a layer of slip slurry onto the surface of the body and bisque-fire at 700-800℃ for 2-3 hours; bisque-firing can improve the strength of the body and prevent cracking during the subsequent high-pressure cooking stage.

[0041] Step c: Apply a transparent glaze to the surface of the slip and let it dry;

[0042] Step d: Apply an antique glaze over the transparent glaze and dry it. The transparent glaze should be 0.2-0.3 mm thick to ensure that the bubbles are visible, and the antique glaze should be 0.5-0.8 mm thick to ensure the integrity of the crackle. Both should be applied by dipping.

[0043] Step e: Firing in a kiln; holding at 1300℃ for 3-3.5 hours to promote the full reaction of feldspar, quartz and kaolin to form a uniform glass phase-crystal composite structure. A two-stage cooling process is used to reduce the temperature from 1300℃ to 900℃: cooling at a rate of 1℃ / min from 1300℃ to 900℃ to reduce the stress of quartz phase transformation; cooling at a rate of 0.8℃ / min from 900℃ to 600℃ to avoid the rapid solidification of the glass phase and the generation of internal stress.

[0044] Step f, soil aging: Through treatment with forest humus and potassium permanganate, the "soil aging" and "oxidation" characteristics of ceramics buried underground for a long time are simulated.

[0045] Step g, Abrasion and Antiquing; This step simulates the "abrasion" and "layering" of a stream eroding the earth's surface.

[0046] Step h and post-processing are used to produce antique-style ceramics.

[0047] In step b, the raw materials of the cosmetic clay and water are prepared into a cosmetic clay slurry at a mass ratio of 1:3. Stir it evenly before use, and then pour it onto the surface of the clay body.

[0048] Step f specifically includes the following steps for creating an aged, earthy look:

[0049] Step 1: Prepare humus slurry: Mix forest humus and red soil at a mass ratio of 3:1, pass through a 100-mesh sieve to remove stones, stir soil and water at a mass ratio of 1:3 to form a slurry, let stand for 2-3 hours, take the upper suspension, and keep the bottom coarse particles for later use; forest humus contains humus, calcium and magnesium salts; red soil with an iron content of 5%-8% is selected.

[0050] Step 2: Potassium permanganate penetration treatment: Mix the suspension and potassium permanganate at a mass ratio of 100:1-3, stir until completely dissolved, and completely immerse the fired ceramic in the solution. Seal and let stand for 48-72 hours at a temperature of 20-25℃. Potassium permanganate promotes the oxidation of iron salts in the red soil, forming "iron stains" and "calcium spots" at the crazing points. The concentration of potassium permanganate affects the glaze effect: when the potassium permanganate concentration is low, such as when the mass ratio of suspension to potassium permanganate is 100:1, it forms "iron stains" and "calcium spots" at the crazing points. When the potassium permanganate concentration is high, such as when the mass ratio of suspension to potassium permanganate is 100:3, in addition to "iron stains" and "calcium spots", it will also lead to the effect of "burnt black" fake marks. Low temperature and slow immersion are conducive to penetration, allowing the solution to enter the glaze-body interface through the crazing points and glaze pores.

[0051] Step 3: Place the solution from Step 2 and the ceramics into a pressure cooker, add the coarse-grained soil and water from Step 1, ensuring the liquid level covers the ceramics. Pressure the ceramics to 0.15 MPa and maintain a temperature of 120°C for 2 hours. After cooking, turn off the heat and allow the temperature and pressure to decrease. The burial environment simulation aging process utilizes high temperature and pressure to cause a chemical reaction between the minerals (calcium carbonate, iron salts) in the soil and the glaze and body, creating "iron stains" and "calcium spots" at the crazing points, similar to the "soil bite" marks on unearthed porcelain. Natural cooling and pressure reduction prevent sudden cooling that could cause the glaze to crack.

[0052] In step g, the abrasive aging process specifically includes the following steps: using simulated quicksand erosion equipment for abrasive aging. The simulated quicksand erosion equipment includes an erosion tank, a ceramic fixing frame, a sand-water separator, a return material conveyor, a sand-water mixer, a return pump, and a return pipe. The ceramic fixing frame is rotatably installed in the erosion tank. The sand-water separator and the return pump are installed at the end of the erosion tank, and the sand-water mixer is installed at the front end of the erosion tank. The two ends of the return material conveyor are connected to the sand-water separator and the sand-water mixer, respectively. The two ends of the return pipe are connected to the return pump and the sand-water mixer, respectively. The inner wall of the erosion tank is equipped with a rubber pad, and the bottom of the erosion tank is inclined at 5°.

[0053] The flushing trough is long and narrow, with rubber pads to reduce equipment wear. The bottom is inclined to simulate the slope of a stream. A sand-water separator is installed at the end of the flushing trough to separate sand and water, so that the sand and water can flow back to the front of the flushing trough to form a "sand-water" cycle. This avoids the water pump from wearing out too quickly due to excessive sand content in the water. A filter screen and filter cotton are installed between the inlet of the return pump and the return outlet of the flushing trough. The clamps at the bottom of the ceramic fixing frame hold the ceramic and rotate it at a speed of 10-15 r / h. Its tilt angle can be adjusted within the range of 30°-60° to ensure that all surfaces and the bottom can withstand the wear of flowing sand.

[0054] The sand-water separator includes an impeller driven by a motor and a discharge conveyor located at the rear end of the impeller. The sand-water mixer is funnel-shaped, with the lower opening of the funnel facing the inside of the flushing tank.

[0055] The method of abrading and aging ceramics using a simulated quicksand scouring device is as follows: The ceramics are placed on a ceramic holder, which rotates the ceramics. The mixed sand and water flow from front to back in the scouring tank, scouring and abrading the outer surface of the ceramics. At the end of the scouring tank, a sand-water separator separates the sand and water. The impeller has buckets with filter holes. The rotating impeller separates the sand and water and carries the sand to the rear of the impeller. The discharge conveyor at the rear transfers the sand to the return conveyor. The end of the return conveyor is connected to a funnel. The return pump is also connected to the inside of the sand-water mixer. The sand and water are remixed inside the sand-water mixer and then transported to the front of the scouring tank, thus achieving reciprocating scouring of the ceramics in the scouring tank.

[0056] The sand used is a mixture of river sand and quartz sand, prepared at a mass ratio of 3:1. The river sand has a particle size of 0.5-2mm, is rounded and without sharp edges, and the quartz sand has a particle size of 0.3-1mm. The total volume is 1 / 5 of the tank volume. For the first 6 hours, a rapid flushing method is used with a water flow rate of 1.5m³ / h, followed by a slow flushing method with a water flow rate of 1m³ / h for the next 6 hours, simulating the differential abrasion between the flood season and the normal water season in a natural stream.

[0057] Post-processing to enhance the natural feel: Lightly brush the surface with a soft-bristled brush dipped in clean water to remove loose sand, retaining the soil stains in the cracks and crevices of the patterns to create a contrast of "deep seams and shallow surfaces"; perform localized hand polishing: Lightly polish easily worn areas such as the rim, foot, and handle with 800-grit sandpaper to avoid revealing white areas and to simulate the marks of long-term use; environmental aging: Place the treated ceramic in a ventilated area for 1-2 weeks to allow the surface to oxidize naturally with the air, turning the potassium permanganate marks from "bright brown" to "dark yellowish brown," which is closer to the color of natural aging. Through the above steps, an antique effect of "ancient body, lustrous glaze, genuine stains, and natural marks" can be achieved in ceramics, taking into account both historical characteristics and the rationality of the process.

[0058] The above are merely some specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. Antique-style ceramic, characterized in that: The body includes the following raw materials by weight: calcined kaolin 20-25 parts, feldspar 6-8 parts, purple gold clay 20-30 parts, saggar clay 5-7 parts, quartz sand 3-5 parts, the transparent glaze includes the following raw materials by weight: feldspar 35-40 parts, quartz 20-30 parts, kaolin 8-10 parts, lithium carbonate 3-5 parts, sodium carbonate 1-3 parts, boric acid 3-5 parts, borax 2-4 parts, zinc oxide 3-6 parts, calcined alumina 2-5 parts, talc 3-5 parts, and the antique glaze includes the following raw materials by weight: feldspar 35-40 parts, quartz 20-30 parts, clay 25-30 parts, pine ash 10-15 parts, limestone 5-8 parts, colorant 4-6 parts; The preparation process of the antique ceramic includes the following steps: Step a, preparing the body: the body is prepared by hand-pulling or mold forming; Step b, applying the cosmetic clay: a layer of cosmetic clay slurry is applied on the surface of the body, and the body is fired at 700-800 DEG C for 2-3 hours; Step c, applying the transparent glaze on the surface of the cosmetic clay, and drying; Step d, applying the antique glaze on the transparent glaze, and drying; Step e, glazing in the kiln; Step f, doing the old with the soil; Step g, doing the old by abrasion; Step h, post-modification, and the antique ceramic is prepared; In step f, the old is done with the soil, which includes the following steps: Step one, preparing the humus soil slurry: forest humus soil and red soil are mixed according to a mass ratio of 3:1, and the stones are removed through a 100-mesh sieve, the soil and water are stirred into a slurry according to a mass ratio of 1:3, and the slurry is left to stand for 2-3 hours, the upper suspension liquid is taken, and the bottom coarse particles are reserved; Step two, potassium permanganate penetration treatment: the suspension liquid and potassium permanganate are mixed according to a mass ratio of 100:1-3, the solution is stirred until it is completely dissolved, the fired ceramic is completely immersed in the solution, and the solution is left to stand for 48-72 hours at a temperature of 20-25 DEG C; Step three, the solution and the ceramic of step two are put into a high-pressure cooking pot, the bottom coarse particles of step one and water are added, the liquid level is higher than the ceramic, the pressure is increased to 0.15 MPa, the temperature is 120 DEG C, and the ceramic is cooked for 2 hours, then the fire is turned off, and the temperature and pressure are reduced; In step g, the old is done by abrasion, which includes the following steps: the old is done by abrasion using a simulated sand scouring device, the simulated sand scouring device includes a scouring tank, a ceramic fixing frame, a sand-water separator, a return conveyor, a sand-water mixing machine, a return pump, and a return pipe, the ceramic fixing frame is rotatably arranged in the scouring tank, the sand-water separator and the return pump are arranged at the end of the scouring tank, the sand-water mixing machine is arranged at the front end of the scouring tank, the two ends of the return conveyor are connected with the sand-water separator and the sand-water mixing machine respectively, the two ends of the return pipe are connected with the return pump and the sand-water mixing machine respectively, the inner wall of the scouring tank is provided with a rubber pad, and the bottom of the scouring tank is inclined by 5 DEG.

2. The antique effect ceramic according to claim 1, characterized in that: The cosmetic clay includes the following raw materials by weight: kaolin 50-60 parts, purple gold clay 20-30 parts, saggar clay 10-12 parts, and wood chips 5-8 parts.

3. The antique effect ceramic of claim 1, wherein: The colorant includes the following raw materials by weight: iron oxide 2-3 parts, and tin oxide 1-2 parts.

4. The antique effect ceramic of claim 1, wherein: The colorant comprises raw materials in the following weight parts: cobalt oxide 0.3-0.8 parts, zinc oxide 3-5 parts.

5. The antique effect ceramic of claim 1, wherein: In step b, the raw materials of the cosmetic clay and water are prepared into a cosmetic clay slurry in a mass ratio of 1:3, and are stirred uniformly before use, and then are sprinkled on the surface of the body.