A method for making bronze-like jianshui purple pottery

Abstract

The application relates to a preparation method of bronze-imitating JianShui purple pottery, which comprises the following steps: firstly, preparing red clay pottery material; then, drawing blank forming, repairing, decorating texture ornament, coloring, high-temperature firing, coloring polishing, and finally, the finished pottery appears the contrast between roughness and smoothness, the contrast between copper green and copper red, and the bronze-imitating JianShui purple pottery with bronze effect is prepared by the method.

Description

Technical Field

[0001] This invention belongs to the technical field of Jianshui purple pottery production methods. Background Technology

[0002] In the production process of Jianshui purple pottery, ceramic artists organically combine calligraphy and painting with carving and clay-filling techniques, forming a unique decorative style. For a long time, various creators in the Jianshui purple pottery industry have been using five-colored clay to create diverse forms of Jianshui purple pottery. From traditional Jianshui purple pottery inherited from history to Jianshui purple pottery incorporating various new techniques, creators have been constantly researching and experimenting, all in an effort to further explore the infinite possibilities of Jianshui five-colored clay, creating rich and varied Jianshui purple pottery to meet people's ever-expanding lifestyle needs.

[0003] Bronze ware, in terms of both shape and texture, possesses form, spirit, and charm, making it beloved and collected by the general public. However, existing Jianshui purple pottery making techniques have not yet been able to produce objects that mimic the effect of bronze ware. How to use the five-colored clay of Jianshui County to create objects with the appearance and texture of bronze ware, thus satisfying the preferences of bronze ware enthusiasts, has been a subject of ongoing research and experimentation by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to continuously enrich the categories of Jianshui purple pottery and to provide a method for preparing bronze-imitation Jianshui purple pottery with a bronze-like effect.

[0005] The technical solution adopted in this invention is as follows:

[0006] A method for preparing Jianshui purple pottery imitating bronze is as follows:

[0007] (1) Preparation of red clay pottery material: The clay material is mixed in the following proportions by mass: 50% of five-colored clay, 15% of yellow clay, 15% of white clay, 10% of gray clay, and 10% of purple clay. The above clay materials are mixed to prepare wet clay material for making utensils.

[0008] (2) Throwing: Throwing wet clay to make the desired shape of the vessel;

[0009] (3) Trimming: After the pottery blanks are naturally air-dried to a suitable humidity, trimming is carried out;

[0010] (4) Decorative texture patterns: Decorate bronze texture patterns on the wet clay body. First, draw the pattern on the clay body with ink lines according to the required pattern of the object, and then decorate the texture pattern on the wet clay body.

[0011] (5) coloring: taking the powder crushed from the raw ore as the coloring raw material, and the coloring raw material formula is white clay 80%, copper oxide 15%, and malachite 5% by mass ratio; the powder particle size is at least 400 mesh; the coloring raw material is mixed with water to prepare coloring slurry, and the coloring slurry is coated on the body with the texture decoration;

[0012] (6) high-temperature firing: the colored body is sent into a kiln, and high-temperature reduction firing is performed at 1180℃; when the temperature in the kiln rises to 950-1050℃, the oxygen in the kiln is reduced to make the kiln in an oxygen-deficient state, so that the oxidized metal in the ceramic body changes in nature to produce a copper green color effect; the firing time is 11-14 hours; then the fire is turned off, and the kiln is naturally cooled;

[0013] (7) coloring and polishing of bronze texture: the polishing method is as follows:

[0014] (7.1) removing the scale layer: after the ceramic body is cooled, the scale on the protruding part of the ware is polished off, and the copper green color on the concave part of the ware is retained without polishing, so that the texture or roughness or smoothness, and the unique mottled color of bronze wares with copper green or brass color are formed;

[0015] (7.2) rough polishing: the local protruding part of the ceramic body is preliminarily polished;

[0016] (7.3) medium polishing: the ceramic body is polished carefully, so that the local protruding part of the ceramic body becomes smoother, and the protruding part is polished to the point where the body appears purple or red, so that the copper color with metallic luster is exposed in the overall copper green color, and the brass color of the protruding part changes gradually;

[0017] (7.4) fine polishing: the ceramic body is polished more carefully, so that the local protruding part of the ceramic body reaches a smooth texture, which is in contrast with the rough texture of the concave part, and the bronze texture of the protruding part is presented in a paste effect;

[0018] The polished ceramic body finally appears a contrast between roughness and smoothness, and a contrast between copper green color and copper red color, so that the texture and color of bronze wares are presented.

[0019] Further, the concentration of the coloring slurry prepared by mixing the coloring raw material with water is 4025 Baume.

[0020] The method of the present application produces Jian Shui purple pottery wares with bronze effect by using a determined clay formula, innovative texture decoration, coloring, high-temperature firing, and coloring and polishing methods, and produces a new style of Jian Shui purple pottery products, which exhibits unique artistic charm and has high ornamental value and market value. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1is a common traditional Jianshui purple pottery product picture;

[0022] Figure 2 and Figure 3 is a bronze effect Jianshui purple pottery product picture made by the method of the present application. DETAILED DESCRIPTION

[0023] A method for preparing a bronze Jianshui purple pottery, the method is as follows:

[0024] (1) Preparation of red clay clay material: the clay material ratio is 50% five flower soil, 15% loess, 15% white clay, 10% ash soil, and 10% purple clay. The above clay materials are mixed to prepare wet clay for making pottery. The clay making process is a traditional process, including taking material, waking material, selecting material, batching material, crushing material, washing and filtering slurry, filtering clay, and waking clay. The method of the present application can only use red clay clay to make pottery body, and cannot use white clay clay commonly used in the production of Jianshui purple pottery.

[0025] (2) Pulling the blank: the wet clay is pulled by the traditional technique to form a pottery blank with the shape of the required pottery.

[0026] (3) Repairing the blank: after the blank is formed by pulling, it is naturally dried to the appropriate humidity and then repaired. According to the thickness of the different parts of the type and body, the required shape, proportion and line are repaired. The repairing method can use the existing technology.

[0027] (4) Decorate the texture pattern: decorate the bronze texture pattern on the wet pottery. According to the required pattern, first draw it on the body with ink lines, and then decorate the texture pattern on the wet blank.

[0028] The decoration process of bronze texture pattern should be completed in the wet state of the pottery (usually 65%-70% humidity) to ensure accurate line drawing, texture effect and pattern closer to the texture and feeling of bronze. The pattern decoration adopts three ways of intaglio, relief and clay sculpture. According to the required pattern, first draw it on the body with ink lines, and then decorate it on the wet blank with the corresponding decoration method.

[0029] Coloring: the powder crushed from the original ore is used as the coloring raw material. The coloring raw material formula is 80% white clay, 15% copper oxide and 5% malachite by mass. The particle size of the powder is at least 400 mesh. The coloring slurry is prepared by adding water to the coloring raw material, and then the coloring slurry is coated on the body with completed texture pattern decoration.

[0030] Coloring is a great breakthrough of the present application relative to the traditional method of making Jian Shui purple pottery, and is an important means to distinguish from the traditional decoration style of Jian Shui purple pottery. The coloring pigment is made of the powder of the original ore, which has the characteristics of strong coloring power and easy dispersion. The original ore pigment is made of malachite and copper oxide as the main raw material as color developing agent. In addition, the white clay in the red mud material has weak plasticity and strong viscosity, and is resistant to high temperature, which is a very good binder. Malachite and copper oxide have bright color and high gloss, which can add strong artistic atmosphere to the work. In the imitation bronze process of Jian Shui purple pottery, malachite and copper oxide play a key role.

[0031] (6) High temperature firing: the body after coloring is sent into the kiln, and high temperature reduction firing at 1180℃ is adopted. When the temperature in the kiln rises to about 1000℃, the oxygen in the kiln is reduced, so that the flame needs to find oxygen for continuous combustion from the body, so that the oxidized metal in the body changes in nature and produces a copper green color effect. The body is loaded into the kiln and fired at high temperature, and the clay body is denatured into pottery. In different firing temperatures, the oxygen content and carbon content in the kiln will produce different proportional changes. When the temperature rises continuously, the carbon and oxygen content in the kiln continuously interact and combine with the molecules of the body, produce osmotic fusion, and the color changes (expressed in the visual color after polishing). The body firing time is 11-14 hours; then the fire is turned off and the kiln is cooled naturally.

[0032] (7) Polishing of bronze texture and coloring: the polishing method is as follows:

[0033] (7.1) Removing the layer of fire skin: after the pottery is cooled, a layer of fire skin will be formed on the surface. First, the fire skin on the protruding part of the ware is polished off, and the copper green color on the concave part of the ware is reserved without polishing, forming the unique mottled color of bronze ware with rough or smooth texture, and copper green or brass color. It is necessary to polish the local part instead of the whole body according to the shape and specific decorative texture of the ware, and the copper green color on the concave part is reserved without polishing, which forms a contrast to the final polishing effect, and the texture is rough or smooth, and the color is copper green or brass, so that it produces the unique mottled color of bronze ware with visual effect of overall coordination and unity.

[0034] (7.2) Rough polishing: it is to preliminarily polish the local protruding part of the surface of the pottery;

[0035] (7.3) Medium polishing: the pottery is polished carefully, so that the local part of the surface of the pottery becomes smoother, and the protruding part is polished to appear dark purple or dark red color, which looks like the color of copper metal in the whole copper green color, and the brass color of the protruding part has a transition change.

[0036] (7.4) Fine grinding: the pottery is polished more carefully, so that the local protruding part of the pottery reaches a smooth texture, which is in contrast with the rough texture of the recessed part, presenting a bronze-like paste effect of the protruding part;

[0037] The use of the polishing process makes the pottery finally appear the contrast between rough and smooth, the contrast between copper green and copper red, and the pottery looks changed but harmonious and unified, perfectly presenting the texture and color of the bronze ware. Figure 2 、 Figure 3 As shown in the products, the products exhibit unique appearance, texture and artistic charm, which are completely different from the traditional Jianshui purple pottery products made of red mud shown in Figure 1 . The products in Figure 1 are obtained by firing the body made of red mud after the colored patterns are made on the body by the technique of negative engraving and positive filling. In Figure 1 , the products with black body are obtained by traditional reduction firing process, and the products with red body are obtained by traditional oxidation firing process. No matter reduction firing or oxidation firing, the appearance, texture and effect of the products are completely different from the effect of the imitation bronze ware prepared by the method of the present application.

Claims

1. A method for preparing bronze-like Jian Shui purple pottery, characterized in that, The method is as follows: (1) Preparation of red mud clay material: the clay material is prepared by mixing the following materials in a mass ratio of 50% five-flower soil, 15% loess, 15% white clay, 10% ash soil, and 10% purple clay; (2) Pulling blank forming: the wet clay material is used to pull a blank to form a clay blank according to the shape of the required vessel; (3) Trimming: the clay blank formed by pulling is naturally air-dried to a suitable moisture content and then trimmed; (4) Decorate texture pattern: decorate the bronze texture pattern on the wet clay blank, draw the pattern on the blank body with ink lines according to the required pattern of the vessel, and then decorate the texture pattern on the wet blank; (5) Coloring: use the powder of the original ore crushed as the coloring raw material, the coloring raw material formula is 80% white clay, 15% copper oxide, and 5% malachite by mass ratio, the particle size of the powder is at least 400 mesh, and the coloring raw material is mixed with water to form a coloring slurry, which is coated on the blank body after completing the texture pattern decoration; (6) High-temperature firing: the blank body after coloring is sent into a kiln, and high-temperature reduction firing at 1180°C is adopted, when the temperature in the kiln rises to 950-1050°C, the oxygen in the kiln is reduced to make the kiln in an oxygen-deficient state, so that the oxidized metal in the clay body changes its properties and produces a copper green color effect; the firing time is 11-14 hours, then the fire is turned off and the kiln is naturally cooled; (7) Coloring and polishing of bronze texture: the polishing method is as follows: (7.1) Removing the fire skin layer: after the clay body is cooled, the fire skin layer on the protruding part of the vessel is polished, and the copper green color on the concave part of the vessel is retained without polishing, forming the unique mottled color of bronze with rough or smooth texture and copper green or brass color; (7.2) Rough polishing: it is a preliminary polishing of the local protruding part of the clay body; (7.3) Medium polishing: the clay body is polished carefully to make the local part of the clay body smoother, and the protruding part is polished to the purple or red color of the blank body, which looks like the metallic copper color in the overall copper green color, and the brass color of the protruding part has a transition change; (7.4) Fine polishing: the clay body is polished more carefully to make the local protruding part of the clay body smooth, which forms a contrast with the rough texture of the concave part, and presents the bronze texture of the protruding part; The polished clay body finally appears a contrast between rough and smooth, copper green and copper red, and presents the texture and color of bronze.

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