Underglaze color white porcelain petals prepared from PVC (polyvinyl chloride) board and preparation process of petals
By preparing underglaze colored white porcelain petals on PVC boards, using pattern groove filling color agent and color glaze foaming technology, the pattern forming problem on thin-walled three-dimensional porcelain is solved, and clear patterns and gradient effects are achieved, improving processing efficiency and product texture.
Patent Information
- Application Number
- CN202510535125.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2025-07-11
AI Technical Summary
Traditional underglaze colored porcelain is difficult to achieve clear patterns on thin-walled and three-dimensional art ceramics, especially the pattern on the petals is difficult to form. If the engraving is too deep, it is easy to penetrate the blank or the pattern is not clear.
Underglaze colored white porcelain petals are prepared using PVC plates. Colored embosses are formed by setting pattern grooves on the blank and filling them with color agent. Combining the double foaming technology of colored glaze and transparent glaze, a gradient blurred edge and texture gradient are formed.
It realizes clear molding of patterns on thin-walled and three-dimensional artistic ceramics, improving processing speed and uniformity and integrity of the petal blank. The color gradient effect is like natural petals, and the touch is layered.
Smart Images
Figure CN120289160A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of ceramics and their preparation processes, and particularly to underglaze colored white porcelain petals prepared using PVC boards and their preparation processes. Background Art
[0002] High-temperature underglaze colored porcelain is a ceramic product formed by applying a painted pattern on the surface of the porcelain and then covering it with a layer of transparent glaze and firing at high temperature. Since the color is wrapped by the glaze layer during the high-temperature firing process, it has the characteristics of bright colors, not easily fading, and strong wear resistance, and is deeply loved by consumers. Traditional underglaze colors are mostly applied to thick-walled ceramic containers. For thin-walled and three-dimensional art ceramics, due to their thin walls, it is very difficult to form them. Especially if you want to show patterns on the petals, it is very difficult to achieve only through traditional manual carving. If the carving pattern is too deep, it is easy to penetrate the blank body, or if it is too shallow, the pattern will not be clear. In view of this, this case is generated. Summary of the Invention
[0003] An object of the present invention is to solve at least the above problems through the underglaze colored white porcelain petals prepared using PVC boards and their preparation processes.
[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows: Underglaze colored white porcelain petals prepared using PVC boards, the colored white porcelain petals include a blank body and a colorant, a colored glaze, and a transparent glaze that are sequentially covered on the surface of the blank body. There are pattern grooves on the blank body, and the colorant fills and protrudes from the pattern grooves of the blank body to form colored convex patterns.
[0005] Preferably, the raw materials of the blank body are calculated by weight and include the following components: 20-25 parts of Dehua kaolin, 15-18 parts of low-temperature clay, 20-25 parts of Xianyou potassium feldspar, 8-10 parts of talc, 15-18 parts of quartz, and 8-12 parts of bentonite.
[0006] Preferably, the raw materials of the colorant are calculated by weight and include the following components: 25-28 parts of sugilite fine powder, 13-15 parts of garnierite fine powder, 20-25 parts of anorthosite fine powder, 4-6 parts of matte regulator, 8-10 parts of ammonium bicarbonate, and 20-25 parts of carrier system.
[0007] Preferably, the raw materials of the matte regulator are calculated by weight and include the following components: 10-12 parts of diatomite, 5-7 parts of silicon carbide fine powder.
[0008] Preferably, the raw materials of the carrier system are calculated by weight and include the following components: 20 -25 parts of water glass, 6-8 parts of carboxymethyl cellulose.
[0009] Preferably, the raw materials of the colored glaze, by weight, include the following components: 8-10 parts of sugilite fine powder, 35-40 parts of potassium feldspar, 20-25 parts of zinc oxide, 15-20 parts of quartz, and 10-12 parts of borax.
[0010] Preferably, the raw materials of the colored glaze, by weight, further include the following components: 7-8 parts of foaming agent, and the raw materials of the foaming agent, by weight, include the following components: 5-6 parts of lithium carbonate and 3-4 parts of ammonium bicarbonate.
[0011] Preferably, the raw materials of the transparent glaze, by weight, include the following components: 20-31 parts of anorthite, 21-33 parts of clay, 10-18 parts of calcium carbonate, 1-6 parts of talc, 13-23 parts of kaolin, 1-6 parts of alumina, and 4-10 parts of barium carbonate.
[0012] The preparation process of the underglaze colored white porcelain petals prepared from PVC plates includes the following steps:
[0013] Step a, raw material processing: The raw materials of the blank are crushed, ground, filtered, demagnetized, iron-removed, and sieved to make slurry, and then made into mud through pressure filtration and vacuum treatment;
[0014] Step b, forming the blank: Process the mud into the shape of petals, and press the pattern grooves through the PVC plate;
[0015] Step c, filling the colorant: Fill the colorant into the pattern grooves, and after drying, the colorant protrudes from the pattern grooves of the blank to form colored convex patterns;
[0016] Step d, glazing: First apply the colored glaze on the colored convex patterns;
[0017] Step e, firing: High-temperature glaze firing to form the colored white porcelain petals.
[0018] Preferably, the PVC plate sequentially includes a male mold, a female mold, and a bottom mold from top to bottom. The female mold is provided with through patterns, and the male mold is provided with pattern protrusions matching the shapes of the through patterns. In the closed mold state, the pattern protrusions of the male mold pass through the through patterns of the female mold from top to bottom and protrude from the bottom surface of the female mold;
[0019] In step b, place the petal prototype on the bottom mold, place the female mold on the petal prototype, then close the male mold and the female mold. The pattern protrusions of the male mold pass through the through patterns of the female mold from top to bottom, and after pressing, pattern grooves are formed on the petal prototype, and then take out the male mold;
[0020] In step c, drop the colorant into the through patterns of the female mold through a dropper. After removing the excess colorant on the surface of the female mold, dry and form to form the blank and the colored convex patterns on the blank, and take out the dried and formed petal blank from between the female mold and the bottom mold.
[0021] In step d, first apply a layer of colored glaze containing a foaming agent on the edge of the colored convex pattern, and then apply a colored glaze without a foaming agent on the entire surface of the green body.
[0022] As can be seen from the above description, the underglaze-colored white porcelain petals prepared by using a PVC board and the preparation process thereof provided by the present invention have the following beneficial effects: using a prefabricated PVC board with patterns to prepare the colored white porcelain petals can form clear patterns on the petal green body, and can ensure the uniformity and integrity of the petal green body, greatly improving the processing speed; the main colorant in the colorant is sugilite fine powder, providing a saturated dark pink color, and the content of sugilite in the colored glaze is relatively low, making the colored glaze present a light pink color. First apply a layer of colored glaze containing a foaming agent on the edge of the colored convex pattern, and then apply a colored glaze without a foaming agent. The double foaming makes the colored convex pattern form a gradient blurred edge. The colored convex pattern is dark pink, and the colored glaze is light pink. The transition area realizes a natural gradation from dark pink to light pink, forming a texture gradient from the center to the edge, and the touch is like the sense of hierarchy of the main vein epidermis of natural petals. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of a PVC board.
[0024] Figure 2 is Figure 1 exploded schematic diagram of
[0025] Figure 3 is Figure 1 exploded schematic diagram of DETAILED DESCRIPTION OF THE INVENTION
[0026] The present invention will be further described below through specific embodiments.
[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0028] The underglaze-colored white porcelain petals prepared by using a PVC board in the present invention, the colored white porcelain petals include a green body and a colorant, a colored glaze and a transparent glaze sequentially covering the surface of the green body. There are pattern grooves on the green body, and the colorant fills and protrudes from the pattern grooves of the green body to form colored convex patterns.
[0029] The raw materials of the green body are calculated by weight and include the following components: 20-25 parts of Dehua kaolin, 15-18 parts of low-temperature clay, 20-25 parts of Xianyou potassium feldspar, 8-10 parts of talc, 15-18 parts of quartz, and 8-12 parts of bentonite. The base of the underglaze-colored white porcelain petals is a white porcelain green body, and a colorant, a colored glaze and a transparent glaze are applied on the basis of the white porcelain green body.
[0030] The raw materials of the colorant, by weight, include the following components: 25-28 parts of sugilite fine powder, 13-15 parts of garnierite fine powder, 20-25 parts of anorthosite fine powder, 4-6 parts of matte regulator, 8-10 parts of ammonium bicarbonate, and 20-25 parts of carrier system. The particle size of the sugilite fine powder is 700-800 nm, which is the main colorant, providing saturated deep pink. Mn 3 + is stably colored in an oxidizing atmosphere. The nanoscale particles are closely packed in the grooves of the green body and form a dense colored layer after sintering, with a saturation ≥ 85%; the particle size of the garnierite fine powder is 600-700 nm, and Ni 2 + adjusts the hue, making the deep pink show a purple-toned matte texture, reducing the surface gloss, and at the same time enhancing the chemical bond Si-O-Ni between the colorant and the green body; the particle size of the anorthosite fine powder is 700-800 nm, and CaO produces an opacifying effect; ammonium bicarbonate is a foaming agent. Ammonium bicarbonate decomposes when heated to produce CO2 bubbles, and multiple scattering occurs when light is incident, making the deep pink pattern show a soft diffuse reflection gloss.
[0031] The raw materials of the matte regulator, by weight, include the following components: 10-12 parts of diatomite and 5-7 parts of silicon carbide fine powder. The porous diatomite in the matte regulator increases the roughness of the colored convex pattern, and silicon carbide improves the pattern stability and enhances the matte texture.
[0032] The raw materials of the carrier system, by weight, include the following components: 20 -25 parts of water glass and 6-8 parts of carboxymethyl cellulose. In the carrier system, high-modulus water glass and carboxymethyl cellulose provide high-strength adhesion.
[0033] The raw materials of the colored glaze, by weight, include the following components: 8-10 parts of sugilite fine powder, 35-40 parts of potassium feldspar, 20-25 parts of zinc oxide, 15-20 parts of quartz, and 10-12 parts of borax. Compared with the colorant, the content of sugilite in the colored glaze is lower, making the colored glaze show light pink.
[0034] The raw materials of the colored glaze, by weight, also include the following components: 7-8 parts of foaming agent. The raw materials of the foaming agent, by weight, include the following components: 5-6 parts of lithium carbonate and 3-4 parts of ammonium bicarbonate. Lithium carbonate and ammonium bicarbonate constitute the foaming agent. The decomposition temperature of lithium carbonate is 700 °C, generating Li2O bubbles with a pore size of 20-50 μm. Ammonium bicarbonate decomposes after 300 °C to generate CO2. First, apply a layer of colored glaze containing the foaming agent on the edge of the colored convex pattern, and then apply the colored glaze without the foaming agent. The double foaming makes the colored convex pattern form a gradually blurred edge. The colored convex pattern is deep pink, and the colored glaze is light pink. The transition area realizes a natural gradation from deep pink to light pink, forming a texture gradient from the center to the edge, and the touch is like the sense of hierarchy of the main vein epidermis of natural petals.
[0035] The raw materials of the transparent glaze, by weight, include the following components: anorthite 20 - 31 parts, pottery clay 21 - 33 parts, calcium carbonate 10 - 18 parts, talc 1 - 6 parts, kaolin 13 - 23 parts, alumina 1 - 6 parts, barium carbonate 4 - 10 parts.
[0036] The following are the specific examples of the colored white porcelain petals:
[0037] Specific implementation 1:
[0038] The raw materials of the green body, by weight, include the following components: Dehua kaolin 20 parts, low-temperature clay 15 parts, Xianyou potassium feldspar 20 parts, talc 8 parts, quartz 15 parts, bentonite 8 parts.
[0039] The raw materials of the colorant, by weight, include the following components: sugilite fine powder 25 parts, garnierite fine powder 13 parts, anorthosite fine powder 20 parts, matte regulator 4 parts, ammonium bicarbonate 8 parts, carrier system 20 parts.
[0040] The raw materials of the matte regulator, by weight, include the following components: diatomite 10 parts, silicon carbide fine powder 5 parts.
[0041] The raw materials of the carrier system, by weight, include the following components: water glass 20 parts, carboxymethyl cellulose 6 parts.
[0042] The raw materials of the colored glaze without foaming agent, by weight, include the following components: sugilite fine powder 8 parts, potassium feldspar 35 parts, zinc oxide 20 parts, quartz 15 parts, borax 10 parts.
[0043] The raw materials of the colored glaze with foaming agent, by weight, further include the following components: sugilite fine powder 8 parts, potassium feldspar 35 parts, zinc oxide 20 parts, quartz 15 parts, borax 10 parts, foaming agent 7 parts. The raw materials of the foaming agent, by weight, include the following components: lithium carbonate 5 parts, ammonium bicarbonate 3 parts.
[0044] The raw materials of the transparent glaze, by weight, include the following components: anorthite 20 parts, pottery clay 21 parts, calcium carbonate 10 parts, talc 1 part, kaolin 13 parts, alumina 1 part, barium carbonate 4 parts.
[0045] Specific implementation 2:
[0046] The raw materials of the green body, by weight, include the following components: Dehua kaolin 25 parts, low-temperature clay 18 parts, Xianyou potassium feldspar 25 parts, talc 10 parts, quartz 18 parts, bentonite 12 parts.
[0047] The raw materials of the colorant, by weight, include the following components: sugilite fine powder 28 parts, garnierite fine powder 15 parts, anorthosite fine powder 25 parts, matte regulator 6 parts, ammonium bicarbonate 10 parts, carrier system 25 parts.
[0048] The raw materials of the matte regulator, by weight, include the following components: 12 parts of diatomite and 7 parts of silicon carbide micropowder.
[0049] The raw materials of the carrier system, by weight, include the following components: 25 parts of sodium silicate and 8 parts of carboxymethyl cellulose.
[0050] The raw materials of the color glaze without foaming agent, by weight, include the following components: 10 parts of sugilite micropowder, 40 parts of potassium feldspar, 25 parts of zinc oxide, 20 parts of quartz, and 12 parts of borax.
[0051] The raw materials of the color glaze with foaming agent, by weight, further include the following components: 10 parts of sugilite micropowder, 40 parts of potassium feldspar, 25 parts of zinc oxide, 20 parts of quartz, 12 parts of borax, and 8 parts of foaming agent. The raw materials of the foaming agent, by weight, include the following components: 6 parts of lithium carbonate and 4 parts of ammonium bicarbonate.
[0052] The raw materials of the transparent glaze, by weight, include the following components: 31 parts of anorthite, 33 parts of pottery clay, 18 parts of calcium carbonate, 6 parts of talc, 23 parts of kaolin, 6 parts of alumina, and 10 parts of barium carbonate.
[0053] Specific implementation 3:
[0054] The raw materials of the green body, by weight, include the following components: 22 parts of Dehua kaolin, 16 parts of low-temperature clay, 22 parts of Xianyou potassium feldspar, 9 parts of talc, 17 parts of quartz, and 10 parts of bentonite.
[0055] The raw materials of the colorant, by weight, include the following components: 26 parts of sugilite micropowder, 14 parts of silicon-magnesium-nickel ore micropowder, 22 parts of anorthosite micropowder, 5 parts of matte regulator, 9 parts of ammonium bicarbonate, and 22 parts of carrier system.
[0056] The raw materials of the matte regulator, by weight, include the following components: 11 parts of diatomite and 6 parts of silicon carbide micropowder.
[0057] The raw materials of the carrier system, by weight, include the following components: 22 parts of sodium silicate and 7 parts of carboxymethyl cellulose.
[0058] The raw materials of the color glaze without foaming agent, by weight, include the following components: 7 parts of sugilite micropowder, 37 parts of potassium feldspar, 22 parts of zinc oxide, 17 parts of quartz, and 11 parts of borax.
[0059] The raw materials of the color glaze with foaming agent, by weight, further include the following components: 9 parts of sugilite micropowder, 37 parts of potassium feldspar, 22 parts of zinc oxide, 17 parts of quartz, 11 parts of borax, and 7.5 parts of foaming agent. The raw materials of the foaming agent, by weight, include the following components: 5.5 parts of lithium carbonate and 3.4 parts of ammonium bicarbonate.
[0060] The raw materials of the transparent glaze, by weight, include the following components: 25 parts of anorthite, 26 parts of pottery clay, 14 parts of calcium carbonate, 3 parts of talc, 20 parts of kaolin, 4 parts of alumina, and 6 parts of barium carbonate.
[0061] The preparation process of the underglaze white porcelain petals made of PVC board includes the following steps:
[0062] Step a, raw material processing: The raw materials of the blank are crushed, ground, filtered, demagnetized, de-ironed, and sieved to make slurry, and then made into mud through pressure filtration and vacuum treatment;
[0063] Step b, forming the blank: Process the mud into the shape of petals, and press the pattern grooves through the PVC board;
[0064] Step c, filling the colorant: Fill the colorant in the pattern grooves, and after drying, the colorant protrudes from the pattern grooves of the blank to form colored convex patterns;
[0065] Step d, glazing: First apply colored glaze on the colored convex patterns;
[0066] Step e, firing: High-temperature glaze firing to form the underglaze white porcelain petals. The firing temperature is 1250 degrees Celsius.
[0067] As shown in the figure, the PVC board is made of PVC material and includes a male mold 1, a female mold 2, and a bottom mold 3 from top to bottom. The female mold 2 is provided with a through pattern 21. The male mold 1 is provided with a pattern protrusion 11 that matches the shape of the through pattern 21. In the closed mold state, the pattern protrusion 11 of the male mold 1 passes through the through pattern 21 of the female mold 2 from top to bottom and protrudes from the bottom surface of the female mold 2; the through pattern 21 on the female mold 2 is V-shaped, with the lower opening larger than the upper opening and an inclination of 18°, ensuring that an "upper-narrow and lower-wide" inverted triangular structure is formed during the filling of the colorant, which is convenient for the female mold 2 to separate from the colored convex pattern during demolding; the top surface of the bottom mold 3 has a certain arc surface and shape to simulate the natural curvature of the leaf. The shape of the bottom surface of the female mold 2 matches that of the bottom mold 3. After kneading the blank into a sheet-like prototype, place it on the bottom mold 3, and then press the female mold 2 on it to shape the blank.
[0068] In step b, place the petal prototype 4 on the bottom mold 3, place the female mold 2 on the petal prototype 4, then close the male mold 1 and the female mold 2. The pattern protrusion 11 of the male mold 1 passes through the through pattern 21 of the female mold 2 from top to bottom. After applying pressure, pattern grooves are formed on the petal prototype 4, and then take out the male mold 1;
[0069] In step c, a colorant is dropped into the through patterns 21 of the master mold 2 through a dropper. After removing the excess colorant on the surface of the master mold 2, it is dried and formed to obtain a green body and colored convex patterns on the green body. The dried and formed petal green body is taken out from between the master mold 2 and the bottom mold 3. The colorant is filled in the pattern grooves of the green body and the through patterns 21 of the master mold 2, and after drying, colored convex patterns protruding from the surface of the green body will be formed. Since the colorant penetrates into the pattern grooves, the colorant adheres more firmly. After applying colored glaze and top glaze later, colored patterns with a raised texture are formed; for easy demolding, after drying, it is placed in an environment at 3-8 °C and cooled for 30 min. By using the shrinkage difference between the PVC board and the green body, a demolding gap is formed, so that the colored convex patterns can be completely retained. The combination of the optimized V-shaped die hole slope and the cooling demolding technology reduces the demolding force by 70% and improves the pattern integrity rate to 99.5%.
[0070] In step d, first, a layer of colored glaze containing a foaming agent is brushed on the edge of the colored convex pattern, and then colored glaze without a foaming agent is applied to the entire surface of the green body.
[0071] The above are only several specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modification of the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.
Claims
1. Underglaze colored white porcelain petals prepared from PVC boards, characterized in that: The colored white porcelain petal comprises a blank body, a colorant, a colored glaze and a transparent glaze which are sequentially coated on the surface of the blank body. A pattern groove is provided on the blank body, and the colorant fills and protrudes from the pattern groove of the blank body to form a colored convex pattern.
2. The underglaze white porcelain petals prepared from PVC plates according to claim 1 are characterized in that: The raw materials of the blank body, by weight, comprise the following components: 20-25 parts of Dehua kaolin, 15-18 parts of low-temperature clay, 20-25 parts of Xianyou potassium feldspar, 8-10 parts of talc, 15-18 parts of quartz, and 8-12 parts of bentonite.
3. The underglaze colored white porcelain petals prepared from PVC plates according to claim 1 are characterized in that: The raw materials of the colorant, by weight, comprise the following components: 25-28 parts of sugilite fine powder, 13-15 parts of garnierite fine powder, 20-25 parts of anorthosite fine powder, 4-6 parts of matte regulator, 8-10 parts of ammonium bicarbonate, and 20-25 parts of carrier system.
4. The underglaze color white porcelain petals prepared from PVC boards according to claim 3, characterized in that: The raw materials of the matte regulator, by weight, comprise the following components: 10-12 parts of diatomite and 5-7 parts of silicon carbide fine powder.
5. The underglaze white porcelain petals prepared from PVC plates according to claim 1 are characterized in that: The raw materials of the carrier system, by weight, comprise the following components: 20-25 parts of water glass and 6-8 parts of carboxymethyl cellulose.
6. The underglaze colored white porcelain petals prepared from PVC board according to claim 1, characterized in that: The raw materials of the colored glaze, by weight, comprise the following components: 8-10 parts of sugilite fine powder, 35-40 parts of potassium feldspar, 20-25 parts of zinc oxide, 15-20 parts of quartz, and 10-12 parts of borax.
7. The underglaze colored white porcelain petals prepared from PVC boards according to claim 6, characterized in that: The raw materials of the colored glaze, by weight, further comprise the following components: 7-8 parts of foaming agent. The raw materials of the foaming agent, by weight, comprise the following components: 5-6 parts of lithium carbonate and 3-4 parts of ammonium bicarbonate.
8. The underglaze colored white porcelain petals prepared from PVC plates according to claim 1, characterized in that: The raw materials of the transparent glaze, by weight, comprise the following components: 20-31 parts of anorthite, 21-33 parts of pottery clay, 10-18 parts of calcium carbonate, 1-6 parts of talc, 13-23 parts of kaolin, 1-6 parts of alumina, and 4-10 parts of barium carbonate.
9. The preparation process of the underglaze color white porcelain petals prepared from PVC boards according to any one of claims 1-8, characterized in that, Comprising the following steps: Step a, raw material processing: The raw materials of the blank body are crushed, ground, filtered, demagnetized, de-ironed, and sieved to make slurry, and then processed by pressure filtration and vacuum treatment to make mud. Step b, forming the blank body: The mud is processed into a petal shape, and the pattern groove is pressed by a PVC board. Step c, filling the colorant: The colorant is filled into the pattern groove. After drying, the colorant protrudes from the pattern groove of the blank body to form a colored convex pattern. Step d, glazing: First, apply the colored glaze on the colored convex pattern. Step e, firing: High-temperature glaze firing is carried out to form the colored white porcelain petal.
10. The preparation process of the underglaze color white porcelain petals prepared using a PVC board according to claim 1, characterized in that: The PVC board sequentially comprises a male mold, a female mold and a bottom mold from top to bottom. The female mold is provided with a through pattern, and the male mold is provided with a pattern protrusion matching the shape of the through pattern. In the closed mold state, the pattern protrusion of the male mold passes through the through pattern of the female mold from top to bottom and protrudes from the bottom surface of the female mold. In step b, the petal prototype is placed on the bottom mold, the female mold is placed on the petal prototype, and then the male mold and the female mold are closed. The pattern protrusion of the male mold passes through the through pattern of the female mold from top to bottom. After pressing, the pattern groove is formed on the petal prototype, and the male mold is taken out. In step c, the colorant is dropped into the through pattern of the female mold through a dropper. After removing the excess colorant on the surface of the female mold, it is dried and formed to form the blank body and the colored convex pattern on the blank body. The dried and formed petal blank body is taken out between the female mold and the bottom mold. In the step d, first apply a layer of colored glaze containing a foaming agent on the edge of the colored convex pattern, and then apply a colored glaze without a foaming agent to the entire surface of the green body.