CN113968753A - Dark carving decoration dry grain full-polished ceramic tile and preparation method thereof - Google Patents
Dark carving decoration dry grain full-polished ceramic tile and preparation method thereof Download PDFInfo
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- CN113968753A CN113968753A CN202111225992.4A CN202111225992A CN113968753A CN 113968753 A CN113968753 A CN 113968753A CN 202111225992 A CN202111225992 A CN 202111225992A CN 113968753 A CN113968753 A CN 113968753A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a dark carving decoration dry grain full-polishing ceramic tile and a preparation method thereof. The preparation method comprises the following steps: applying a first overglaze as a color overglaze on the surface of the green brick; printing oily ink on the surface of the green brick after the first overglaze is applied in an ink-jet manner; applying a second overglaze as a high-white overglaze on the surface of the green brick subjected to ink-jet printing of oily ink; the position of the second overglaze which is pushed open by the oily ink exposes the dark background color of the first overglaze, the position of the second overglaze which is not pushed open by the oily ink presents a high-white effect due to the superposition of the first overglaze and the second overglaze, and the position is pushed open and combined with the color matching of the dark background color and the high-white effect to present a three-dimensional dark carving level; applying transparent glaze on the surface of the green brick after the second overglaze is applied to promote the transparent glaze to cover the stripping position of the overglaze layer so as to have the simulated carving decoration of a bright surface; and drying, sintering and polishing the green brick after the transparent glaze is applied to obtain the dark carving decoration dry grain fully-polished ceramic tile.
Description
Technical Field
The invention relates to a dark carving decoration dry grain full-polishing ceramic tile and a preparation method thereof, belonging to the technical field of ceramic tile production and manufacturing.
Background
The glazed ceramic products in the current market are various in types. In order to improve the competitiveness of products, ceramic manufacturers currently not only provide more flower color choices, but also carry out a lot of work in the aspect of improving the added value of the products. Chinese patent CN113183292A discloses a method for preparing ceramic tiles with numerical control mold effect, which designs mold patterns by computer and forms natural fluctuating decoration effect by ink-jet printing functional ink with the property of spreading or poking on a planar blank by a ceramic ink-jet printer. The carving texture ceramic tile that forms is dialled away with special effect ink at present uses the face ceramic tile modelled after an antique as the main, in the later stage use, because there is the tongue and groove in the glaze and is difficult to clean, just hides dirty easily.
Disclosure of Invention
Aiming at the problems, the invention provides a dark carving decoration dry grain full-polishing ceramic tile and a preparation method thereof, wherein the dark carving decoration dry grain full-polishing ceramic tile obtained by combining the concave-convex effect presented by the surface glazes with the full-polishing glaze process not only has the simulation carving effect, but also is a bright surface product, is convenient to clean in the later period, and has wider application range.
In a first aspect, the invention provides a preparation method of a dark carving decoration dry grain full-polished ceramic tile. The preparation method comprises the following steps:
applying a first overglaze as a color overglaze on the surface of the green brick;
printing oily ink on the surface of the green brick after the first overglaze is applied in an ink-jet manner;
applying a second overglaze as a high-white overglaze on the surface of the green brick subjected to ink-jet printing of oily ink; the position of the second overglaze which is pushed open by the oily ink exposes the dark background color of the first overglaze, the position of the second overglaze which is not pushed open by the oily ink presents a high-white effect due to the superposition of the first overglaze and the second overglaze, and the position is pushed open and combined with the color matching of the dark background color and the high-white effect to present a three-dimensional dark carving level;
applying transparent glaze on the surface of the green brick after the second overglaze is applied to promote the transparent glaze to cover the stripping position of the overglaze layer so as to have the simulated carving decoration of a bright surface;
and drying, sintering and polishing the green brick after the transparent glaze is applied to obtain the dark carving decoration dry grain fully-polished ceramic tile.
According to the preparation method, the oil ink is adopted between the first overglaze and the second overglaze to form the undulating texture with the groove, so that the color gradation is pulled apart while the carving decoration is realized, and the dark carving visual effect is presented. In addition, the thick transparent glaze layer is matched to enable the transparent glaze to be filled to the poking-out position, so that the stereoscopic impression is further improved, and the defects of bubbles and the like on the surface of the brick are avoided.
Preferably, the chemical composition of the base glaze of the first overglaze comprises: by mass percent, SiO2：50～52％、Al2O3: 29-32%, alkaline earth metal oxide: 2.3 to 3.4%, alkali metal oxide: 7.0 to 8.9% of ZrO2: 2.9-3.5%; preferably, the first overglaze further comprises a pigment accounting for 3-8% of the base glaze in percentage by mass.
Preferably, the initial melting temperature of the first overglaze is 1190-1210 ℃.
Preferably, the first overglaze is applied by spraying glaze with a specific gravity of 1.28-1.33 g/cm3The glazing amount is 300-320 g/m2。
Preferably, the chemical composition of the base glaze of the second overglaze is the same as that of the first overglaze; preferably, the second overglaze further comprises 3-5% of zirconium silicate in percentage by mass of the basic overglaze.
Preferably, the second overglaze is applied by spraying glaze with a specific gravity of 1.45-1.50 g/cm3The glazing amount is 700-750 g/m2。
Preferably, the transparent layerThe glaze comprises a transparent frit having a chemical composition comprising: by mass percent, SiO2：63％～66％、Al2O3：11％～14％、CaO：11％～13％、MgO：1％～2％、K2O：4.2％～5.1％、Na2O：0.2％～0.5％、ZnO：1.8％～2.3％。
Preferably, the application mode of the transparent glaze is glaze spraying, and the glazing amount is 1000-1200 g/m2。
Preferably, the transparent glaze comprises transparent frits with the particle size of 80-250 meshes.
In a second aspect, the invention further provides a dark carving decoration dry grain full-polished ceramic tile obtained by the preparation method.
Drawings
FIG. 1 shows a brick surface effect diagram of a dark carving decoration dry grain full-polishing ceramic brick.
Detailed Description
The present invention is further illustrated by the following examples, which are to be understood as merely illustrative of, and not restrictive on, the present invention. Unless otherwise specified, each percentage means a mass percentage.
The following is an exemplary description of the preparation method of the dark carving decoration dry grain full polishing ceramic tile of the invention.
The ceramic base material is pressed into a green brick. The chemical composition of the ceramic base material is not limited, and the ceramic base material formula commonly used in the field can be adopted. In some embodiments, the chemical composition of the ceramic base includes: by mass percent, SiO2：62.0～67.0％、Al2O3: 20.0 to 25.0%, alkaline earth metal oxide: 0.2 to 2%, alkali metal oxide: 4 to 7 percent. For example, the chemical composition of the ceramic base includes: by mass percent, SiO2：62.0～67.0％、Al2O3：20.0～25.0％、Fe2O3：0.06～0.10％、TiO2：0.10～0.50％、CaO：0.1～0.5％、MgO：0.1～1.0％、K2O：2.0～3.0％、Na2O: 2.5-3.5%, loss on ignition: 4.5 to 6.5 percent.
Green bricks can be prepared by dry press forming. The green brick may be a flat blank.
And drying the green brick. Drying in a drying kiln may be used. The drying time can be 1-1.2 h, and the moisture of the dried blank is controlled within 0.5 wt%.
And applying a first overglaze as a color overglaze on the surface of the dried green brick. The first overglaze has the functions of covering the base color and flaws of the green body, promoting ink-jet color development and avoiding the phenomenon that the oil stripping ink directly acts on the green brick to cause the bottom of the brick surface to be exposed. And because the green brick has low water content after being discharged from the drying kiln and poor flatness of the brick surface, the application of the first surface glaze is beneficial to improving the flatness. In addition, the temperature of the dried green brick is high, so that when oil ink is subsequently sprayed and printed on the surface of the first glaze, the glaze layer formed by the first glaze is basically dried by heat, and the first glaze basically cannot repel the oil ink to form a poke-off effect.
The chemical composition of the base glaze of the first overglaze comprises: by mass percent, SiO2：50～52％、Al2O3: 29-32%, alkaline earth metal oxide: 2.3 to 3.4%, alkali metal oxide: 7.0 to 8.9% of ZrO2: 2.9 to 3.5 percent. The content of zirconia should not be too high in first overglaze, otherwise excessive zirconia leads to first overglaze great in viscosity under the high temperature state, causes the adobe exhaust to have the resistance for the bubble can't in time discharge the glaze layer and is remained in the glaze layer by the parcel, leads to the glaze polishing to have a large amount of pinhole defects.
As an example, the chemical composition of the base glaze of the first overglaze comprises: loss on ignition by mass percent: 3.00 to 4.80 percent of SiO2：50.89～51.78％、Al2O3：29.87～31.04％、Fe2O3：0.21～0.41％、TiO2：0.06～0.08％、CaO：1.25～1.78％、MgO：1.18～1.59％、K2O：4.98～5.61％、Na2O：2.18～3.24％、ZrO2：2.93～3.25％、ZnO：0.07～0.10％。
The first overglaze is a color overglaze, in particular a dark color overglaze. The first overglaze can be added with pigment with corresponding color according to requirements to realize overglaze color. By way of example, the first overglaze further comprises 3-8% by mass, for example 3% by mass of a cobalt black pigment in the base glaze. The addition of cobalt black pigment can form a black ground color.
The first overglaze is applied in a glaze spraying mode. In some embodiments, the first glaze has a specific gravity of 1.28 to 1.33g/cm3The glazing amount is 300-320 g/m2. The first surface glaze is applied in a thin spraying mode, so that the flatness is high, and the effect of wetting the surface of the green brick is achieved. If the application amount of the first overglaze is too much, the whole overglaze layer is too thick, so that bubbles of the blank body cannot be discharged in time, and a large amount of bubbles exist in the glaze layer.
And (4) carrying out ink-jet printing on the surface of the green brick after the first overglaze is applied. The effect net can be formed by utilizing the design vector graphics according to the layout, and the texture pattern can be obtained by printing the oily ink according to the effect net. The composition and source of the oily ink are not limited, and the oily ink commonly used in the field can be adopted.
Before printing the oily ink, the surface temperature of the green brick can be controlled to be 35-40 ℃ to enhance the stripping effect. Of course, the oil-based ink may not be dried after printing.
And applying a second overglaze on the surface of the green brick after the oil ink is printed by ink jet. The second overglaze can be peeled off under the action of the oil-based ink to form a wavy texture. The base glaze of the second overglaze preferably has the same formulation system as the first overglaze, so that the adaptability between glaze layers can be improved.
The first overglaze and the second overglaze are both high-temperature overglazes. The low-temperature overglaze is not suitable for the invention, and the low-temperature overglaze with lower melting temperature can be used for filling the grooves in the high-temperature melting liquid state without waiting for the transparent melting liquid formed by the transparent glaze to flow and fill the grooves, so that the overglaze layer loses the concave-convex decorative effect. The use of the high-temperature overglaze can ensure that the transparent glaze can flow to the grooves between overglazes in the state of completely forming molten liquid, thereby promoting the formation of three-dimensional carving decoration. In some embodiments, the first overglaze and the second overglaze have a melting onset temperature of 1190-1210 ℃.
As an example, the base glaze of the second overglaze is formedThe chemical composition comprises: by mass percent, SiO2：50～52％、Al2O3: 29-32%, alkaline earth metal oxide: 2.3 to 3.4%, alkali metal oxide: 7.0 to 8.9% of ZrO2: 2.9 to 3.5 percent. In some embodiments, the chemical composition of the base glaze of the second overglaze comprises: loss on ignition by mass percent: 3.00 to 4.80 percent of SiO2：50.89～51.78％、Al2O3：29.87～31.04％、Fe2O3：0.21～0.41％、TiO2：0.06～0.08％、CaO：1.25～1.78％、MgO：1.18～1.59％、K2O：4.98～5.61％、Na2O：2.18～3.24％、ZrO2：2.93～3.25％、ZnO：0.07～0.10％。
The whiteness of the second overglaze can also be continuously increased in order to pull apart the color gradation of the first overglaze and the second overglaze. For example, the second overglaze also comprises 3-5% by mass, for example 5% by mass of zirconium silicate in the basic overglaze. After the zirconium silicate is introduced, the whiteness of the second overglaze can be increased, the color level of the first overglaze and the second color is further improved, and the effect of rich dark carving decoration is achieved. The whiteness of the second overglaze can be 75-80 degrees. The zirconium silicate is introduced in a range that does not substantially affect the onset melting temperature of the second overglaze.
The second overglaze is applied by spraying glaze. In some embodiments, the specific gravity of the second overglaze is 1.45-1.50 g/cm3The glazing amount is 700-750 g/m2. The glazing amount of the second overglaze is higher, so that the poking effect is more obvious, and the poking position has obvious groove detail texture. If the glazing amount of the second overglaze is low, the second overglaze can be smoothly pulled out and cannot present concave-convex fluctuation textures. In view of the relatively high amount of glazing of the second overglaze, a high whiteness effect of the second overglaze is exhibited at the superposed position of the first overglaze and the second overglaze. In contrast, the dark background color of the first overglaze is exposed at the position where the second overglaze is pulled away by the oily ink, and the color gradation forms strong contrast, thereby having a decorative effect like dark carving. In some embodiments, the second overglaze is 0.15 to 0.30mm in height of the relief texture formed by the oil-based ink.
The control of the second overglaze glazing amount of the invention can correspond to the vector diagram of the oily ink. If the vector diagram is mainly composed of fine line spots, the glazing amount of the second overglaze can be properly reduced to avoid reducing the groove effect, because the oil-based ink is less in use amount and the pull-out is more resistant.
In order to avoid the ink-jet pattern shielding the concave-convex effect and weakening the dark carving, the invention does not need the process of printing the ink-jet pattern.
It is noted here that the technical effects of the present invention cannot be achieved by applying a single layer of glaze on the bottom of the oil-based ink and applying a single layer of glaze on the surface of the oil-based ink, because: the single-layer overglaze cannot present the dark carving level formed by combining the color level design and the carving decoration, the defect of single glaze layer decoration exists, and the rich glaze decoration layer obtained by coloring cannot be obtained.
And applying transparent glaze on the surface of the green brick after the second overglaze is applied to increase the transparency of the glaze. Moreover, the transparent glaze layer with enough thickness can be formed by covering the surface of the pulling-out position with the molten transparent glaze.
The transparent glaze comprises a transparent frit having a chemical composition comprising: by mass percent, SiO2：63％～66％、Al2O3：11％～14％、CaO：11％～13％、MgO：1％～2％、K2O：4.2％～5.1％、Na2O: 0.2% -0.5%, ZnO: 1.8 to 2.3 percent. As an example, the transparent glaze comprises a transparent frit having a chemical composition comprising: loss on ignition by mass percent: 0.23 to 0.25% of SiO2：63.00％～65.90％、Al2O3：11.00％～13.95％、CaO：11.00％～13.00％、Fe2O3：0.05％～0.20％、TiO2：0.05％～0.10％、MgO：1.00％～2.00％、K2O：4.21％～5.10％、Na2O: 0.23% -0.35%, ZnO: 1.80 to 2.30 percent. Compared with the raw material transparent glaze, the glaze layer formed by the transparent frits has less bubbles, which is beneficial to improving the integral transparency of the glaze layer.
The transparent glaze comprises transparent frits with the particle size of 80-250 meshes.
The melting starting temperature of the transparent glaze is 920-1030 ℃. Because the initial melting temperature of the transparent glaze is lower than that of the overglaze, the phenomenon that the groove part is filled after the overglaze is melted flat in advance can not occur in the formed melting liquid. In some embodiments, the over-glaze has an onset temperature 250 to 290 ℃ higher than that of the clear glaze.
The transparent glaze comprises, in addition to the transparent frit, water and glaze glue. In some embodiments, the transparent glaze comprises: 45-52 parts of transparent frit, 8-12 parts of water and 38-43 parts of glaze glue. The application mode of the transparent glaze can be glaze pouring.
The glazing amount of the transparent glaze is 1000-1200 g/m2. Through applying a large amount of transparent glazes, under the cover of the transparent glaze layer of high thickness, the transparent glaze that the high temperature viscosity is lower can fill on dialling the position to can observe the suspension effect like dark carving under the glaze with certain angle, improve the artistry of product greatly, the high content glass on transparent glaze layer makes the glaze have the emulation sculpture decoration of bright face simultaneously. But if transparent glaze layer is too thick, be unfavorable for the bubble in time to discharge, the bubble is wrapped up in the glaze layer, even the bubble exists in transparent glaze layer bottom and does not influence glaze polishing pinhole, but a large amount of bubbles exist and can cause refraction and scattering to the light, weaken transmitted light intensity greatly, reduce the glaze layer to a certain extent and see through the sense.
And drying the green brick after the transparent glaze is applied. Drying in an electric kiln can be adopted. The drying temperature is 110-120 ℃, and the water content of the dried green brick is controlled within 0.3 wt%.
And (5) firing. For example, the low-temperature slow burning in a roller kiln. The groove part of the overglaze layer is filled by the transparent glaze layer, and the glaze surface has concave-convex feeling after being fired. In order to obtain a glaze surface with higher flatness, the transparent glaze layer is designed to have a certain thickness. In order to promote the air bubble discharge, the firing system adopts low-temperature slow firing to ensure the mirror surface degree and the transparent feeling. For example, the firing cycle is 107-110 min, and the maximum firing temperature is 1154-1161 ℃.
The preparation method of the dark carving decorative dry grain full-polished ceramic tile comprises the steps of spraying the first surface glaze on a green tile in a thin mode, meanwhile, in order to pull the layer away from the second surface glaze, spraying ink to print oily ink with a pull-out effect, applying the second surface glaze with a thicker thickness, distinguishing the layers between two surface glaze layers through color matching to realize dark carving, and finally applying the transparent glaze with a high thickness, so that the layout layer effect can be realized without ink-jet printing of patterns.
In addition, the dark carving decoration dry grain full-polishing ceramic tile obtained by the preparation method is not a natural antique surface product which does not need polishing, but a bright surface full-polishing glaze product which needs polishing in the later period, and the polished glaze surface has higher flatness but shows concave-convex relief carving decoration in vision.
The present invention will be described in detail by way of examples. It is also to be understood that the following examples are illustrative of the present invention and are not to be construed as limiting the scope of the invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art may be made in light of the above teachings. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
The preparation method of the dark carving decoration dry grain full-polished ceramic tile comprises the following steps:
step 1, pressing common ceramic base materials into green bricks;
step 2, drying the green bricks in a drying kiln for 1-1.2 h, and controlling the moisture of the dried green bricks within 0.5 wt%;
step 3, applying first surface glaze on the surface of the green brick; the chemical composition of the base glaze of the first overglaze comprises: loss on ignition by mass percent: 3.00 to 4.80 percent of SiO2：50.89～51.78％、Al2O3：29.87～31.04％、Fe2O3：0.21～0.41％、TiO2：0.06～0.08％、CaO：1.25～1.78％、MgO：1.18～1.59％、K2O：4.98～5.61％、Na2O：2.18～3.24％、ZrO2: 2.93-3.25%, ZnO: 0.07-0.10%; the specific gravity of the first overglaze is 1.28-1.33 g/cm3The glazing amount is 300-320 g/m2(ii) a The first surface glaze comprises a cobalt black pigment accounting for 3% of the base glaze in percentage by mass besides the base glaze;
step 4, ink-jet printing oily ink on the surface of the green brick after the first overglaze is applied;
step 5, applying a second overglaze on the surface of the green brick after the oil ink is printed by ink jet; the chemical composition of the base glaze of the second overglaze is the same as that of the first overglaze; the specific gravity of the second overglaze is 1.45-1.50 g/cm3The glazing amount is 700-750 g/m2；
Step 6, spraying transparent glaze on the surface of the green brick after the second overglaze is applied; the transparent glaze comprises a transparent frit having a chemical composition comprising: loss on ignition by mass percent: 0.23 to 0.25% of SiO2：63.00％～65.90％、Al2O3：11.00％～13.95％、CaO：11.00％～13.00％、Fe2O3：0.05％～0.20％、TiO2：0.05％～0.10％、MgO：1.00％～2.00％、K2O：4.21％～5.10％、Na2O: 0.23% -0.35%, ZnO: 1.80% -2.30%; the glazing amount of the transparent glaze is 1000-1200 g/m2；
Step 7, drying the green brick after the transparent glaze is applied, wherein the drying temperature is 110-120 ℃, and the moisture of the dried green brick is controlled within 0.3 wt%;
step 8, slowly burning in a roller kiln at a low temperature, wherein the burning period is 107-110 min, and the highest burning temperature is 1154-1161 ℃;
and 9, polishing.
As can be seen from fig. 1, the white area is the effect of the first overglaze and the second overglaze stacked in superposition, and the light gray is the undertone color exposed after the second overglaze is stripped off by the oil-based ink. Because the poked edge of the oily ink is relatively soft, the whole layer is excessive, natural and not hard, and the white part can be visually seen to have a dull decoration effect which is suspended in the glaze layer.
Example 2
Essentially the same as example 1, except that: the second overglaze comprises 5 percent of zirconium silicate by mass of the basic glaze besides the basic glaze.
Comparative example 1
Essentially the same as example 1, except that: the chemical composition of the base glaze of the first overglaze and the second overglaze comprises: loss on ignition by weight percent: 3.84% and SiO2：52.66％、Al2O3：28.69％、Fe2O3：0.21％、TiO2：0.08％、CaO：1.20％、MgO：1.45％、K2O：4.27％、Na2O：2.13％、ZrO2: 5.38%, ZnO: 0.09 percent. The overglaze is usually whitened by the addition of zirconium silicate. When the zirconium content of the overglaze is too high, it can lead to the introduction of radioactive impurities Ra into the zirconium silicate226、Th232、K40Excessive radioactivity of the product exceeds the standard, and high-temperature viscosity of the overglaze is high, so that the overglaze is not beneficial to exhausting of green bricks, and bubbles are generated on the glaze to influence the decoration of the glaze.
Comparative example 2
Essentially the same as example 1, except that: the chemical composition of the base glaze of the first overglaze and the second overglaze comprises: IL (loss on ignition), in weight percent: 4.69% of SiO2：58.79％、Al2O3：22.78％、Fe2O3：0.29％、TiO2：0.15％、CaO：0.96％、MgO：0.21％、K2O：2.83％、Na2O：3.05％、P2O5：0.31％、ZrO2: 5.94 percent. At the moment, the initial melting temperature of the overglaze is lower, the second overglaze is pushed away to collapse to a certain extent, and the concave-convex fluctuation decorative effect is lost.
Claims (10)
1. A preparation method of a dark carving decoration dry grain full-polishing ceramic tile is characterized by comprising the following steps:
applying a first overglaze as a color overglaze on the surface of the green brick;
printing oily ink on the surface of the green brick after the first overglaze is applied in an ink-jet manner;
applying a second overglaze as a high-white overglaze on the surface of the green brick subjected to ink-jet printing of oily ink; the position of the second overglaze which is pushed open by the oily ink exposes the dark background color of the first overglaze, the position of the second overglaze which is not pushed open by the oily ink presents a high-white effect due to the superposition of the first overglaze and the second overglaze, and the position is pushed open and combined with the color matching of the dark background color and the high-white effect to present a three-dimensional dark carving level;
applying transparent glaze on the surface of the green brick after the second overglaze is applied to promote the transparent glaze to cover the stripping position of the overglaze layer so as to have the simulated carving decoration of a bright surface;
and drying, sintering and polishing the green brick after the transparent glaze is applied to obtain the dark carving decoration dry grain fully-polished ceramic tile.
2. The method according to claim 1, wherein the chemical composition of the base glaze of the first overglaze comprises: by mass percent, SiO2：50～52%、Al2O3: 29-32%, alkaline earth metal oxide: 2.3 to 3.4%, alkali metal oxide: 7.0 to 8.9% of ZrO2: 2.9-3.5%; preferably, the first overglaze further comprises a pigment accounting for 3-8% of the base glaze in percentage by mass.
3. The method according to claim 1 or 2, wherein the first overglaze has a melting onset temperature of 1190 to 1210 ℃.
4. The method according to any one of claims 1 to 3, wherein the first overglaze is applied by glaze spraying and has a specific gravity of 1.28 to 1.33g/cm3The glazing amount is 300-320 g/m2。
5. The method according to any one of claims 1 to 4, characterized in that the base glaze of the second overglaze has the same chemical composition as the first overglaze; preferably, the second overglaze further comprises 3-5% of zirconium silicate in percentage by mass of the basic overglaze.
6. The method according to any one of claims 1 to 5, characterized in that the second overglaze is applied by means of glaze spraying,the specific gravity is 1.45-1.50 g/cm3The glazing amount is 700-750 g/m2。
7. The method according to any one of claims 1 to 6, characterized in that the transparent glaze comprises a transparent frit having a chemical composition comprising: by mass percent, SiO2：63%～66%、Al2O3：11%～14%、CaO：11%～13%、MgO：1%～2%、K2O：4.2%～5.1%、Na2O：0.2%～0.5%、ZnO：1.8%～2.3%。
8. The preparation method according to any one of claims 1 to 7, characterized in that the transparent glaze is applied by spraying glaze, and the glazing amount is 1000-1200 g/m2。
9. The method according to any one of claims 1 to 8, wherein the transparent glaze comprises a transparent frit having a particle size of 80 to 250 mesh.
10. The dark engraved decorated dry grain fully polished ceramic tile obtained by the method of preparation according to any one of claims 1 to 9.
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| CN202111225992.4A CN113968753A (en) | 2021-10-21 | 2021-10-21 | Dark carving decoration dry grain full-polished ceramic tile and preparation method thereof |
| CN202211293776.8A CN115583844B (en) | 2021-10-21 | 2022-10-21 | Full-polished ceramic tile with concealed carving decoration dry grains and preparation method thereof |
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| CN202111225992.4A CN113968753A (en) | 2021-10-21 | 2021-10-21 | Dark carving decoration dry grain full-polished ceramic tile and preparation method thereof |
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| CN115286243A (en) * | 2022-07-12 | 2022-11-04 | 蒙娜丽莎集团股份有限公司 | Rock plate with shale surface effect and preparation method thereof |
| CN115872781A (en) * | 2022-12-19 | 2023-03-31 | 佛山欧神诺陶瓷有限公司 | Method for enhancing color development of ceramic tile, ceramic tile and application thereof |
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Also Published As
| Publication number | Publication date |
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| CN115583844B (en) | 2023-08-11 |
| CN115583844A (en) | 2023-01-10 |
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