CN111559904A - Whole-body color-changing light-transmitting ceramic tile and preparation method thereof - Google Patents
Whole-body color-changing light-transmitting ceramic tile and preparation method thereof Download PDFInfo
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- CN111559904A CN111559904A CN202010456744.XA CN202010456744A CN111559904A CN 111559904 A CN111559904 A CN 111559904A CN 202010456744 A CN202010456744 A CN 202010456744A CN 111559904 A CN111559904 A CN 111559904A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 90
- 239000000049 pigment Substances 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 19
- 238000010304 firing Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 72
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 229910052593 corundum Inorganic materials 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910001952 rubidium oxide Inorganic materials 0.000 claims description 3
- CWBWCLMMHLCMAM-UHFFFAOYSA-M rubidium(1+);hydroxide Chemical compound [OH-].[Rb+].[Rb+] CWBWCLMMHLCMAM-UHFFFAOYSA-M 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 24
- 238000004040 coloring Methods 0.000 abstract description 2
- 239000011449 brick Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- -1 rare earth neodymium oxide Chemical class 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000010427 ball clay Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/001—Applying decorations on shaped articles, e.g. by painting
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- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
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- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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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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- 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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- 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
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- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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Abstract
The invention discloses a whole-body color-changing light-transmitting ceramic tile and a preparation method thereof. The preparation method comprises the following steps: distributing light-transmitting powder on powder conveying equipment; sucking out the light-transmitting powder in the corresponding area according to the predetermined pattern texture, and simultaneously refilling the light-transmitting color-changing powder in the area corresponding to the pattern texture; conveying the powder on the conveying equipment to a forming equipment for press forming to obtain a ceramic blank; and firing the ceramic body to obtain the whole-body color-changing light-transmitting ceramic tile with at least partial textures having color-changing light-transmitting effects. According to the preparation method of the whole-body color-changing light-transmitting ceramic tile, the color-changing pigment is added into the light-transmitting powder for coloring to form the light-transmitting color-changing powder, and the light-transmitting color-changing powder is distributed in a special distribution mode to form the required texture and present the whole-body texture.
Description
Technical Field
The invention relates to a whole-body color-changing light-transmitting ceramic tile and a preparation method thereof, belonging to the technical field of ceramic tile production and manufacturing.
Background
Because the natural stone is difficult to mine and process and has high market price, the wide use of the natural stone is limited, and the trend of using ceramic tiles or ceramic plate products similar to natural stone patterns to replace the natural stone is already in the process. The existing common ceramic tile is generally prepared into a full-body ceramic tile by applying surface glaze, ink-jet printing, applying protective glaze and firing and polishing, or a full-body ceramic tile is formed by adopting a multi-tube material distribution mode, but certain difference exists between the texture and natural stone.
In addition, in order to achieve the discoloration effect, neodymium oxide is generally applied directly to the glaze in the existing ceramic tile, which mainly has the following problems: firstly, the rare earth neodymium oxide is easy to absorb moisture and carbon dioxide in the air, the neodymium oxide is made into a color-changing glaze, and the glaze surface is easy to bubble in the firing process, so that the quality of the glaze surface is seriously influenced; secondly, the neodymium oxide is easy to react with other components in the glaze, and the color development of the glaze of different systems is not easy to regulate; finally, the direct application of neodymium oxide has a poor color development effect. In addition, the color-changing pigment such as neodymium oxide is added into the ceramic ink or glaze, and the neodymium oxide reacts with the ceramic ink or glaze to generate Nd2Si2O7The glaze layer is colored, which is not favorable for the transparent feeling of the glaze layer.
Disclosure of Invention
Aiming at the problems, the invention provides a whole-body color-changing light-transmitting ceramic tile and a preparation method thereof. The preparation method comprises the following steps: distributing light-transmitting powder on powder conveying equipment; sucking out the light-transmitting powder in the corresponding area according to the predetermined pattern texture, and simultaneously refilling the light-transmitting color-changing powder in the area corresponding to the pattern texture; conveying the powder on the conveying equipment to a forming equipment for press forming to obtain a ceramic blank; and firing the ceramic body to obtain the whole-body color-changing light-transmitting ceramic tile with at least partial textures having color-changing light-transmitting effects. The powder in the process of conveying the powder on the conveying device to the forming device for press forming to obtain the ceramic body comprises the light-transmitting powder and the light-transmitting color-changing powder backfilled in the region corresponding to the pattern texture.
According to the preparation method of the whole-body color-changing light-transmitting ceramic tile, the color-changing pigment is added into the light-transmitting powder for coloring to form the light-transmitting color-changing powder, and the light-transmitting color-changing powder is distributed in a special distribution mode to form the required texture and present the whole-body texture. The light-transmitting brick with light transmission and partial texture color change is obtained after firing, and the decorative patterns with different visual senses are presented under different light sources, so that the artistic effect of the ceramic brick is greatly improved. The light-transmitting powder material can be repeatedly sucked out and the light-transmitting color-changing powder material can be backfilled for several times until a preset pattern is formed. The light-transmitting color-changing powder materials refilled every time can be the same or different according to the pattern requirements, so that abundant patterns can be formed.
In a preferred scheme, the pattern texture is drawn into a graphic file, and the control system identifies the graphic file and generates a signal; transmitting the signal to a material suction system, and sucking the light-transmitting powder in the corresponding area by the material suction system according to the signal; and the material suction system finishes material suction, and meanwhile, the filling system backfills the light-transmitting color-changing powder in the corresponding area. According to the selected pattern, the line part in the pattern is processed by CAD software according to the pattern lines in a proportion of 1: the proportion of 1 is drawn into a file, the file is identified by a control system, and signals are transmitted to a corresponding material suction system and a corresponding filling system to perform corresponding material suction and material supplement actions, so that accurate material suction and material supplement can be realized to form a required texture pattern.
In a preferable scheme, the material suction system starts the material suction port to suck the light-transmitting powder out after the material suction nozzle penetrates into the light-transmitting powder layer. Therefore, the light-transmitting powder in the area corresponding to the pre-designed pattern texture can be completely sucked from the bottom to the surface and the preset light-transmitting color-changing powder is filled.
The light-transmitting color-changing powder comprises light-transmitting powder and color-changing pigment. Preferably, the color-changing pigment is present in an amount of 1 to 5 wt.% based on the transparent powder. The suction backfill cloth method of the invention combines the specific light-transmitting color-changing powder to realize the effect of the full-body texture pattern only by using a small amount of color-changing pigment.
The color changing pigment may be, for example, a neodymium oxide and/or a rubidium oxide color changing pigment.
Preferably, the chemical composition of the light-transmitting powder material comprises: 2.5-4.0% of loss on ignition and SiO in percentage by mass269-75%、Al2O315-18%、Fe2O30.23-0.26%、CaO 0.5-1.2%、MgO 0.1-0.3%、K2O 3-6%、Na2O 2-4%。
Preferably, before firing, transparent glaze is applied on the surface of the ceramic body. The chemical composition of the transparent glaze comprises: by mass percentage, 3-4% of loss on ignition and SiO254-57%、Al2O324-26%、Fe2O30.2-0.4%、TiO20.1-0.2%、CaO 0.2-0.4%、MgO 0.1-0.2%、K2O 4-5%、Na2O 2-3%。
Preferably, the application mode of the transparent glaze is glaze spraying, and the specific gravity of the transparent glaze is 1.25-1.45g/cm3The application amount is 200-400 g/m2。
Preferably, before firing, the surface of the ceramic body after applying the transparent glaze is ink-jet printed with a pattern, followed by applying the protective glaze. The chemical composition of the protective glaze comprises: by mass percent, SiO250-55%、Al2O310-15%、CaO 8-15%、MgO 2.5-3.2%、ZnO 2-3%、K2O 2-3%、Na2O2-3% and loss on ignition of 0.3-0.5%.
Preferably, the application mode of the protective glaze is glaze spraying, and the specific gravity of the protective glaze is 1.25-1.45g/cm3The application amount is 200-2。
Preferably, the sintering temperature is 1210-1240 ℃, and the sintering period is 40-100 min.
In a second aspect, the invention further provides the full-body color-changing light-transmitting ceramic tile obtained by the preparation method.
Drawings
FIG. 1 (A) is a brick surface effect diagram of a green body before press forming, and FIG. 1 (B) is a brick surface effect diagram of a whole-body color-changing light-transmitting ceramic brick after pressing and firing;
FIG. 2 is a schematic structural diagram of a cooperative suction and backfill digital material distribution system; wherein
Is a light-transmitting powder blanking tube,
、
、
the device is a light-transmitting color-changing powder feeding tube;
FIGS. 3A and B are schematic diagrams of the material distribution paths of the full-body color-changing light-transmitting ceramic tile with different graphic files;
fig. 4 is a schematic diagram of the structure of the multi-tube distribution system.
Detailed Description
The present invention is further illustrated by the following examples, which are to be understood as merely illustrative and not restrictive. Unless otherwise specified, each percentage means a mass percentage.
The following is an exemplary description of the method for making the all-body color-changing light-transmitting ceramic tile.
Firstly, light-transmitting powder is distributed on powder conveying equipment by using a digital distribution system. The material can be distributed through a discharge hopper.
The chemical composition of the light-transmitting powder material can comprise: 2.5-4.0% of loss on ignition and SiO in percentage by mass269-75%、Al2O315-18%、Fe2O30.23-0.26%、CaO 0.5-1.2%、MgO 0.1-0.3%、K2O 3-6%、Na2O 2-4%。
In some embodiments, the raw material composition of the light-transmitting powder material may include: the ball clay comprises the following components in percentage by mass: 30-50% of low-temperature sand: 30-50%, feldspar: 8 to 15 percent.
Preparing the light-transmitting color-changing powder. 1-5% of color-changing pigment (usually color-changing oxide) is added into the light-transmitting powder to form the light-transmitting color-changing powder. The addition amount of the color-changing pigment is selected according to the required pattern texture, and if the addition amount of the color-changing pigment is more than 5 percent, the color-changing pigment is darker in color and can influence the light transmittance; if the addition amount of the color-changing pigment is less than 1%, the color-changing effect is not significant. In addition, the invention can generate excellent through lines and color changing effect by using a special cloth mode even under the condition of adding a small amount of color changing pigment, thereby avoiding adding excessive color changing pigment to generate bubbles in the glaze layer.
The color changing pigments include, but are not limited to, neodymium oxide, rubidium oxide, for example. Suitable color-changing pigments can be selected according to the texture color of the pattern.
The particle size of the color-changing pigment is 500-3000 nm. In one embodiment, the grain composition of the light-transmitting powder is: calculated by mass percentage, 30 meshes above: 20-25%, 30-60 mesh: 65-70%, 60-80 mesh: 3-8%, 80 meshes below: 3 to 5 percent. This allows the color-changing pigment to be better mixed with the translucent powder and colored.
And then, the light-transmitting and color-changing powder is distributed at the digital fixed point by a material distribution mode combining suction and backfill. Therefore, more accurate texture patterns can be distributed, and the real whole body effect is achieved. The material distribution mode of the cooperation of suction and backfill is realized by a suction and backfill cooperative digital material distribution system.
The sucking and backfilling cooperative digital material distribution system mainly comprises a control system, a material sucking system, a filling material system and a recovery system. The working principle of the sucking and backfilling cooperative digital material distribution system is described in the following with reference to fig. 2.
Pattern texture is identified via the control system. For example, the line part (i.e. pattern texture) of the whole color-changing light-transmitting ceramic tile is processed by CAD software according to the pattern texture, wherein the ratio of 1: the scale of 1 is plotted as a graphic file, recognized by the control system and generated as a signal.
And transmitting the signal generated by the identification to a corresponding material suction system. The material suction system consists of one or more material suction nozzles. And the material suction nozzle sucks materials according to the path of the graphic file. In the material suction process, the material suction nozzle sucks at least part of the light-transmitting powder material according to the corresponding path (see fig. 3), and the light-transmitting powder material is recovered through the recovery pipeline. In order to achieve the whole body effect, the transparent powder in the area corresponding to the pattern texture of the whole body color-changing transparent ceramic tile is completely sucked from the bottom to the surface.
And when the material suction is finished, the filling system performs corresponding material supplementing action. The filling system consists of one or more powder discharge pipes. Specifically, after the material suction nozzle sucks the light-transmitting powder, the powder discharging pipe distributes the material to the area corresponding to the pattern texture. The dosage of the light-transmitting color-changing powder backfilled by the filling material system is controlled according to the graphic file. It is understood that the amount of the light-transmitting color-changing powder backfilled is basically the same as that of the light-transmitting powder sucked out. The sucking and feeding actions are performed substantially simultaneously. In one embodiment, the material suction nozzle and the transparent color-changing powder blanking pipe are arranged next to each other, and the material suction nozzle is positioned in front of the powder blanking pipe in the advancing direction of the powder conveying equipment.
The light-transmitting powder sucked out by the material suction system is recycled through the recycling system. The recovery system includes one or more recovery pipes.
Preferably, the frequency of the motor for controlling the moving speed of the powder conveying device during the sucking and the backfilling is 25-30 Hz.
The invention adopts the suction backfill mode to ensure that the bottom surfaces of the textures are all the light-transmitting color-changing powder, and adopts the suction backfill mode to recycle the sucked powder.
And then, pressing and forming by using a press to form a ceramic blank with at least partial textures having color-changing and light-transmitting effects under illumination. In the ceramic body, the phase composition with the color changing function is mainly Nd2Si2O7. The component enables neodymium ions to have narrow absorption peaks in a visible light range under the excitation of visible light energy, and the neodymium ions are color-changeable under different energy light sources.
In addition, by controlling the content of the silicon dioxide in the transparent powder to be 65-75%, the reaction with neodymium oxide can be increased, and more Nd can be generated2Si2O7And (4) crystals.
In some embodiments, the reaction of neodymium may also be promoted by the addition of a feldspar mineralizer.
And drying the green body. The drying temperature can be 150 ℃ and 250 ℃, and the drying time can be 40-100 min.
In some embodiments, a transparent glaze is applied to the surface of the dried green body. The transparent glaze can enable the color development of the ink-jet pattern to be better, and prevent the protective glaze from forming pinholes as much as possible. The chemical composition of the transparent glaze may include: by mass percentage, 3-4% of loss on ignition and SiO254-57%、Al2O324-26%、Fe2O30.2-0.4%、TiO20.1-0.2%、CaO 0.2-0.4%、MgO 0.1-0.2%、K2O 4-5%、Na2O 2-3%。
The transparent glaze can be applied by spraying glaze. In some embodiments, the transparent glaze can have a specific gravity of 1.25 to 1.45g/cm3The glaze spraying amount can be 200-400 g/m2。
And (4) ink-jet printing a pattern on the surface of the green body with the transparent glaze. The color of the ink jet printed pattern depends on the specific pattern effect.
And applying a protective glaze on the surface of the blank after the pattern is printed by ink jet. The protective glaze has the function of making the surface of the ceramic tile more antifouling. The chemical composition of the protective glaze may include: by mass percent, SiO250-55%、Al2O310-15%、CaO 8-15%、MgO 2.5-3.2%、ZnO 2-3%、K2O 2-3%、Na2O2-3% and loss on ignition of 0.3-0.5%.
And firing the blank to obtain the light-transmitting brick with light transmission and partial texture color change. The sintering temperature can be 1210 ℃ and 1240 ℃, and the sintering period can be 40-100 min. When the firing temperature is lower than 1000 ℃, more Nd is generated by reaction2Si2O7Crystal, light color.
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 whole-body color-changing light-transmitting ceramic tile comprises the following steps:
the method comprises the following steps: the light-transmitting and color-changing powder is distributed in a mode of sucking out and backfilling through the light-transmitting powder distributed in the discharging hopper. According to the selected design layout, the line part in the pattern is processed by CAD software according to the pattern lines by the following steps of 1: drawing the proportion of 1 into a pattern file, identifying the pattern file by a control system, generating a signal, and transmitting the signal to a corresponding material suction system and a corresponding filling system to perform corresponding material suction and material supplement actions. After the material distribution system receives the signal, the transparent powder is discharged (as shown in FIG. 2)
) The transparent powder is uniformly distributed on the distributing platform to serve as a base material, the belt is conveyed to a first group of toner absorbing and filling stations, the absorbing system reaches a designated position according to a pre-designed path, the absorbing nozzle is inserted into the base material layer, and the absorbing port is opened to absorb the base material. At the same time, the powder is discharged (as in fig. 2)
、
、
) The cloth is made of light-transmitting color-changing powder. After the first group of toner distribution procedure is completed, the belt is conveyed to a second toner distribution station to continue to complete the material suction and distribution work. After the material suction and the backfilling and distributing are finished, the distributing belt conveys the powder with the distributed textures to the position of a rear platform of the press, the grid cover net frames the powder with the distributed patterns and conveys the powder into a press mold frame, and the powder is pressed and molded; the brick surface effect diagram of the blank before press forming is shown as (A) in figure 1;
step two: pressing and forming by a press to obtain a ceramic blank;
step three: spraying transparent glaze on the surface of the ceramic blank, wherein the specific gravity of the transparent glaze is 1.25-1.45g/cm3The application amount is 200-400 g/m2(ii) a The chemical composition of the transparent glaze comprises: by mass percentage, 3-4% of loss on ignition and SiO254-57%、Al2O324-26%、Fe2O30.2-0.4%、TiO20.1-0.2%、CaO 0.2-0.4%、MgO 0.1-0.2%、K2O 4-5%、Na2O 2-3%；
Step four: printing a pattern on the surface of the ceramic blank sprayed with the transparent glaze in an ink-jet manner;
step five: spraying protective glaze on the surface of the ceramic blank after the pattern is printed by ink jet, wherein the specific gravity of the protective glaze is 1.25-1.45g/cm3The application amount is 200-2(ii) a The chemical composition of the protective glaze comprises: by mass percent, SiO250-55%、Al2O310-15%、CaO 8-15%、MgO 2.5-3.2%、ZnO 2-3%、K2O 2-3%、Na2O2-3%, loss on ignition 0.3-0.5%;
step six: quickly firing in a roller kiln at 1210 ℃ for 60 min;
step seven: and polishing, grading and packaging the sintered ceramic tiles.
The brick surface effect diagram of the whole-body color-changing light-transmitting ceramic brick after being pressed and fired is shown as (B) in figure 1. The whole body color-changing light-transmitting ceramic tile with the color-changing effect obtained in example 1 has stable color development, and is cyan under a fluorescent lamp, magenta under sunlight and pink under incandescent lamp light.
The existing multi-tube material distribution mode adopts a multi-tube material distribution system (see figure 4) for material distribution, the material distribution mode has randomness, corresponding patterns cannot be accurately distributed, and the light-transmitting color-changing powder material is only in the middle or on one layer of the surface, so that the light-transmitting color-changing powder material cannot be distributed from bottom to surface if the suction backfill material distribution mode corresponds to textures. That is, the controllability of the texture is poor by adopting a multi-tube distribution mode, and the specific texture is difficult to generate. In addition, the powder is thrown out by the roller for distribution in a multi-pipe distribution mode, so the light-transmitting color-changing powder is generally distributed only in the middle or on the surface layer and cannot generate the whole effect.
Claims (10)
1. The preparation method of the whole-body color-changing light-transmitting ceramic tile is characterized by comprising the following steps of: distributing light-transmitting powder on powder conveying equipment; sucking out the light-transmitting powder in the corresponding area according to the predetermined pattern texture, and simultaneously refilling the light-transmitting color-changing powder in the area corresponding to the pattern texture; conveying the powder on the conveying equipment to a forming equipment for press forming to obtain a ceramic blank; and firing the ceramic body to obtain the whole-body color-changing light-transmitting ceramic tile with at least partial textures having color-changing light-transmitting effects.
2. The method of claim 1, wherein the pattern texture is rendered into a graphics file, the control system recognizing the graphics file and generating a signal; transmitting the signal to a material suction system, and sucking the light-transmitting powder in the corresponding area by the material suction system according to the signal; and the material suction system finishes material suction, and meanwhile, the filling system backfills the light-transmitting color-changing powder in the corresponding area.
3. The preparation method of claim 2, wherein the material suction system sucks the light-transmitting powder material by opening the material suction port after the material suction port penetrates into the light-transmitting powder material layer.
4. The method according to claim 1, wherein the light-transmitting color-changing powder comprises a light-transmitting powder and a color-changing pigment, wherein the color-changing pigment is 1 to 5wt% of the light-transmitting powder.
5. The production method according to claim 4, wherein the color-changing pigment comprises neodymium oxide and/or rubidium oxide.
6. The method according to claim 4, wherein the chemical composition of the light-transmitting powder material comprises: 2.5-4.0% of loss on ignition and SiO in percentage by mass269-75%、Al2O315-18%、Fe2O30.23-0.26%、CaO 0.5-1.2%、MgO 0.1-0.3%、K2O 3-6%、Na2O 2-4%。
7. The method according to claim 1, wherein a transparent glaze is applied to the surface of the ceramic body before firing; the application mode of the transparent glaze is glaze spraying, and the application amount of the transparent glaze is 200-400 g/m2。
8. The production method according to claim 7, wherein, before firing, a pattern is ink-jet printed on the surface of the ceramic body after the transparent glaze is applied, followed by applying a protective glaze; the application mode of the protective glaze is glaze spraying, and the specific gravity of the protective glaze is 1.25-1.45g/cm3The application amount is 200-2。
9. The method as claimed in claim 1, wherein the firing temperature is 1210-1240 ℃ and the firing period is 40-100 min.
10. The full-body color-changing light-transmitting ceramic tile obtained by the preparation method according to any one of claims 1 to 9.
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Application publication date: 20200821 |