Mud pressing color filling manufacturing method of Jianshui purple pottery product

Abstract

A mud pressing and color filling manufacturing method for a Jianshui purple pottery product comprises the steps that firstly, Jianshui purple pottery mud material is used for manufacturing mud pieces, then color mud materials are prepared, the color mud materials are stacked on the mud pieces according to designed patterns to form patterns, the stacking height is larger than 2 mm, and the edges of the stacked patterns are in natural transition connection with the mud pieces; partially dehydrating the mud sheets with the stacked patterns and then feeding the mud sheets into a moisturizing box to adjust the moisture content of the mud sheets; pressing the stacked pattern into the mud sheet; and manufacturing a mold by using the mud sheet, and then firing and polishing to obtain the Jianshui purple pottery product. The Jianshui purple pottery product manufactured by the method is unique in style, can be manufactured into more diversified shapes, can meet the diversified requirements of people on the Jianshui purple pottery product, and is high in production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of the production method of Jianshui purple pottery products. Background Art

[0002] Jianshui purple pottery has a long history. For a long time, its main creation technique has been to draw on the body after pulling and drying the blank, and then perform intaglio carving and relief filling on the body to create a unique style of Jianshui purple pottery. This intaglio carving and relief filling technique first requires a painter to use a brush to draw on the blank, and then use a carving knife to perform intaglio carving on the drawn part, and then fill the intaglio part with colored clay. The filling of the clay needs to be repeatedly pressed for many times to make the filled clay fully adhere to the carving mold. This is not only time-consuming and laborious, but also the pattern boundary contours often appear rigid and not smooth enough during carving and filling. Especially when making large-area patterns and having high requirements for natural color transition, it is even more time-consuming and laborious. In addition, due to the continuous pursuit of the diversification of the styles of Jianshui purple pottery works by people, especially when using Jianshui purple pottery to make ceramic plate painting products, the works created by the simple intaglio carving and relief filling technique can no longer meet the needs of people. Summary of the Invention

[0003] The purpose of the present invention is to meet the diverse needs of people, provide an innovative method for pressing clay and color filling of Jianshui purple pottery products, fill the deficiencies of the existing technical methods, and improve production efficiency.

[0004] The technical solution adopted by the present invention is as follows: A method for pressing clay and color filling of Jianshui purple pottery products, the method steps are as follows: 1) Use Jianshui purple pottery clay to make clay sheets, and control the moisture content of the pressed clay sheets to be 19 - 23%; 2) Modulate colored clay, and control the moisture content of the colored clay to be 25 - 29%; 3) Stack the colored clay on the clay sheet according to the designed pattern to form a pattern, the stacking height is greater than 2 mm, and the edge of the stacked pattern naturally transitions and connects with the clay sheet; 4) Naturally air-dry and dehydrate the clay sheet with the stacked pattern until the moisture content is 16 - 20%, and then send it to a humidity box and place it for one day to make the moisture content of the stacked clay and the clay sheet consistent and slowly dehydrate, and control the moisture content to be 12 - 15%; 5) Perform pattern pressing, use the method of patting or rolling to press the clay sheet. Because the moisture content of the clay sheet and the clay is 12 - 15%, it has a certain toughness. By patting and pressing the stacked clay, the pattern of the stacked clay is pressed into the clay sheet. After the stacked clay and the clay sheet are fused, naturally dry it. After the moisture content is reduced to 10%, trim the surface of the clay sheet into a flat plane, then polish the surface of the clay sheet until it is smooth and flat, and then place the clay sheet in a humidity box to make the moisture content of the clay sheet return to 19 - 23%; 6) Making the shape: Use the method of clay sheet bonding. After cutting the clay sheet into the required shape, bond it to make a square or special-shaped object. Or use the method of patting and forming. Roll the clay sheet into a circle and then gradually pat it into the required shape. Or use the method of mold forming. Place the clay sheet on a plaster mold and pat it to form the shape defined by the mold; 7) Naturally air-dry the blank body made into a shape. After the moisture content reaches below 3%, send it into a furnace for firing; 8) Polish the fired object to obtain a Jianshui purple pottery product.

[0005] Further, in the above step 5), when making the pattern, for the part of the pattern with clear boundaries, directly press the colored clay strip into the clay sheet.

[0006] Further, in the above step 5), when making the pattern, combine the methods of intaglio carving and filling to process the details of the pattern.

[0007] The present invention has the following advantages: 1. The pattern made by the stacking method has a novel style and a natural transition at the pattern boundary. Especially for the pattern in the style of Chinese traditional painting, it is more vivid, solving the deficiencies of the traditional intaglio carving and filling process of Jianshui purple pottery, such as rigid pattern lines and inflexible transitions; 2. The method is simple and efficient, solving the problems of cumbersome process, time-consuming and laborious when making large-area patterns, and improving the production efficiency; 3. By using the method of the present invention, the colored clay can be directly stacked on the clay board to form a picture, breaking the complex process that the traditional process must be decorated with a writing brush and then engraved and filled.

[0008] The method of the present invention provides a new method for making Jianshui purple pottery products. The Jianshui purple pottery products made have a unique style, and the shapes that can be made are more diversified, meeting the diverse needs of people for Jianshui purple pottery products. Description of the Drawings

[0009] Figure 1 is a schematic diagram of stacking a pattern with colored clay on a clay sheet by the method of the present invention; Figure 2 is Figure 1 the top view of Figure 3 is a schematic diagram of pressing the stacked pattern into the clay sheet by the method of the present invention; Figures 4 - 9 is the specific process of making a purple pottery print by the method of the present invention; Figure 10 and Figure 11 is a schematic diagram of making a bottle by the method of patting and forming. Detailed Embodiments

[0010] The method of the present invention will be further elaborated below in conjunction with the accompanying drawings of the specification and embodiments.

[0011] As Figure 1 , Figure 2 , Figure 3 shown, a method for making a pressed clay and color filling of Jianshui purple clay products is as follows: 1) Make a clay sheet 1 with Jianshui purple clay material, and control the moisture content of the pressed clay sheet at 19 - 23%; 2) Prepare the colored clay material, and control the moisture content of the colored clay material at 25 - 29%; 3) Stack the colored clay material on the clay sheet according to the designed pattern to form pattern 2, with the stacking height greater than 2 mm, and the edge of the stacked pattern naturally transitions and connects with the clay sheet; 4) Naturally air-dry and dehydrate the clay sheet with the stacked pattern, control the moisture content at 16 - 20%, then send it into a humidity box and place it for one day to make the moisture content of the stacked clay material and the clay sheet consistent and slowly dehydrate until the moisture content drops to 12 - 15%; 5) Perform pattern pressing, and use the method of patting or rolling to press the clay sheet. Because the moisture content of the clay sheet and the clay material is 12 - 15% and has a certain toughness, use a wooden paddle 3 to pat and press the stacked clay material to press the stacked pattern 2 into the clay sheet 1. After the stacked clay material and the clay sheet are fused, the moisture content is reduced to 10%. Use a blade to correct the surface to make the surface of the clay sheet form a flat plane, and then use the polishing tool for Jianshui purple clay care to make the surface of the clay sheet smooth and flat; place the made clay sheet into a humidity box to make the moisture content of the clay sheet return to 19 - 23%; 6) Make the shape of the ware. Take out the clay sheet with the restored moisture content in the humidity box, and use the clay sheet bonding method to cut the clay sheet according to the required shape and then bond it to make a square or special-shaped ware, or use the sheet pressing forming method to roll the clay sheet into a circle and then gradually pat it into the required shape of the ware, or use the mold forming method to place the clay sheet on a gypsum mold and perform forming and patting to make the ware limited by the mold; 7) After completion, let the moisture content of the green body reach less than 3% through natural air-drying, and send the dried clay blank into a furnace for firing; 8) Polish the fired ware to obtain a Jianshui purple clay product. The polishing process of Jianshui purple clay adopts the traditional polishing method, and uses polishing tools such as grindstones and fiber grinding wheels to polish the surface of the green body flat, so as to obtain utensils with different gloss effects such as matte and bright.

[0012] Figures 4 - 9 Shows the specific process of making a purple clay print by the method of the present invention, which is as follows: 1) Make a clay sheet with Jianshui purple clay material: The Jianshui purple clay material adopts the clay material of the existing technology, such as red clay material, white clay material, etc. It can be made by existing technical methods such as a clay machine and manual rolling, such as Figure 4The clay sheet 1 shown has a water content of about 21%. 2) Prepare the colored clay: Prepare the colored clay according to the method of preparing the filling clay material used in the traditional Yangtian process of Jianshui purple pottery, but the consistency of the colored clay is slightly greater than that of the traditional engraved and filled colored clay, and the water content of the colored clay material is about 26%. 3) Pattern drawing: As Figure 5 shown, use the colored clay to stack the pattern 2 on the clay sheet 2 according to the design requirements. The stacking height of the colored clay should be greater than 2 mm, and the edge should transition naturally. 4) Moisturize and air-dry: Air-dry the clay sheet with the stacked pattern until the water content is about 18%, and then send it into a humidity control box and place it for 24 hours to balance the water content of the stacked clay material and the clay sheet, making the water content of the stacked clay material and the clay sheet tend to be the same, and the water content is controlled at 13 - 14%. The humidity control box is a device of the prior art. A simple humidity control box is a foam plastic box. Place a gypsum board at the bottom of the box, and place the clay sheet on the gypsum board. The gypsum board will slowly absorb the water of the clay sheet, causing the clay sheet to dehydrate and dry slowly. The clay sheet can also be placed in the Jianshui purple pottery wet blank humidity control cabinet disclosed in CN216359652U for slow dehydration and drying; 5) Pattern pressing: As Figure 6 shown, after waiting for the water content of the stacked colored clay and the clay sheet to be 13 - 14%, use the patting method or the rolling method to press the clay sheet, so that the colored clay 2 is embedded in the clay sheet 1; As Figure 6 shown, for the flower stem 2a with a clear boundary, directly make it into a colored clay strip and press the colored clay strip directly into the clay sheet; As Figure 7 shown, after the stacked clay material and the clay sheet are fused, reduce the water content to 10%. Use a blade to correct the surface to make the surface of the clay sheet form a flat surface, and then use the polishing tool for finishing Jianshui purple pottery to polish and buff, making the surface of the clay sheet smooth and flat; As Figure 8 shown, the details can be made in combination with the traditional Jianshui intaglio and relief process; 6) After production, let the green body dry thoroughly through natural air-drying, and the water content reaches below 3%. Send the thoroughly dried clay blank into the furnace for firing; 7) As Figure 9 shown, polish the fired utensil to obtain the Jianshui purple pottery product. The Jianshui purple pottery polishing process is to polish the surface of the green body flat through polishing tools such as grindstones and fiber grinding wheels, so as to obtain utensils with different gloss effects such as matte and shiny.

[0013] If a specific shape, such as a bottle, is to be made, after step 5) is completed, the clay sheet with the pressed pattern can be placed in a humidity control box, increase the humidity in the humidity control box, let the water content of the clay sheet return to about 20% and then take it out. As Figure 10 shown, adopt the film-forming method. Roll the clay sheet into a circle and use tools to pat it into a bottle as Figure 11 shown, and then air-dry, fire, and polish to complete the production of the finished product.

[0014] In the method of the present invention, the moisture content of the mud material and the mud sheet in each step must be strictly controlled, otherwise it is difficult to produce qualified products. Unless otherwise specified, the percentages described in the present invention are all mass percentages.

[0015] The Jianshui purple pottery products made by the method of the present invention not only retain the technological characteristics of the traditional decoration of Jianshui purple pottery products, but also show their unique decorative effects. The production process is more simple and efficient. Especially for the decoration in the style of traditional Chinese painting, the visual effect is more prominent, and the products made are more diverse in both shape and surface decoration.

Claims

1. A method for making a pressed mud and color filling of Jianshui purple pottery products, characterized in that, The method steps are as follows: 1) Make clay slices with Jianshui purple clay, and control the moisture content of the pressed clay slices at 19 - 23%; 2) Prepare colored clay, and control the moisture content of the colored clay at 25 - 29%; 3) Stack the colored clay on the clay slice according to the designed pattern to form a pattern, with the stacking height greater than 2 mm, and the edge of the stacked pattern naturally transitions and connects with the clay slice; 4) Naturally air-dry and dehydrate the clay slice with the stacked pattern until the moisture content reaches 16 - 20%, then send it into a humidity box and place it for one day to make the moisture content of the stacked clay and the clay slice consistent and slowly dehydrate until the moisture content is 12 - 15%; 5) Perform pattern pressing. Use the method of patting or rolling to press the clay slice. By patting and pressing the stacked clay, press the pattern of the stacked clay into the clay slice. After the stacked clay and the clay slice are fused, naturally dry it. After the moisture content drops to 10%, trim the surface of the clay slice into a flat plane, then polish the surface of the clay slice until it is smooth and flat, and then place the clay slice in a humidity box to make the moisture content of the clay slice return to 19 - 23%; 6) Make the shape. Cut the clay slice according to the required shape by the clay slice bonding method and bond it to make a square or special-shaped shape, or use the film-forming method to roll the clay slice into a circle and then gradually pat it into the required shape, or use the mold-forming method to place the clay slice on a plaster mold and perform forming and patting to make the shape defined by the mold; 7) Naturally air-dry the blank made into the shape until the moisture content reaches below 3%, and then send it into a furnace for firing; 8) Grind the fired ware to obtain Jianshui purple clay products.

2. The method for making a pressed clay and color filling of a Jianshui purple clay product according to claim 1, characterized in that, In the above step 5), when making the pattern, for the pattern part with clear boundaries, directly press the colored clay strip into the clay slice.

3. The method for making a pressed clay and color filling of Jianshui purple clay products according to claim 1 or 2, characterized in that, In the above step 5), when making the pattern, combine the intaglio and yangtian methods for detailed processing of the pattern.

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