阅读说明：本技术 一种底釉及其制备方法、黑色喷墨陶瓷砖及其制造方法 (Ground glaze and preparation method thereof, black ink-jet ceramic tile and manufacturing method thereof ) 是由 邓兴智 沈荣伟 曾绍雄 许超 王志军 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种底釉及其制备方法、黑色喷墨陶瓷砖及其制造方法,底釉的原料组成以质量分数计包括：高岭土5份,钾长石33份,钠长石28份,石英粉10份,硅酸锆10份,滑石粉7份,965熔块7份；所述965熔块的化学组成以质量百分数计包括：SiO<Sub>2</Sub> 49.97％,Al<Sub>2</Sub>O<Sub>3</Sub> 16.96％,Fe<Sub>2</Sub>O<Sub>3</Sub> 0.14％,TiO<Sub>2</Sub> 0.05％,CaO 12.71％,MgO 1.41％,K<Sub>2</Sub>O 4.03％,Na<Sub>2</Sub>O 12.57％,ZnO 0.37％,B<Sub>2</Sub>O<Sub>3</Sub> 0.18％,BaO 0.83％,烧失量0.78％。通过控制高岭土的加入量,增加了墨水的下渗深度,提升了墨水的干燥效率,避免了喷墨印花之后的避釉缺陷。(The invention discloses a ground glaze and a preparation method thereof, a black ink-jet ceramic tile and a manufacturing method thereof, wherein the ground glaze comprises the following raw materials in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts of 965 frit; the 965 frit comprises the following chemical components in percentage by mass: SiO 2 2 49.97％，Al 2 O 3 16.96％，Fe 2 O 3 0.14％，TiO 2 0.05％，CaO 12.71％，MgO 1.41％，K 2 O 4.03％，Na 2 O 12.57％，ZnO 0.37％，B 2 O 3 0.18 percent, 0.83 percent of BaO and 0.78 percent of loss on ignition. By controlling the kaolinThe addition amount increases the infiltration depth of the ink, improves the drying efficiency of the ink, and avoids the glaze-avoiding defect after ink-jet printing.)

1. The ground glaze is characterized by comprising the following raw materials in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts of 965 frit;

wherein the 965 frit comprises the following chemical components in percentage by mass: SiO 2₂49.97％，Al₂O₃16.96％，Fe₂O₃0.14％，TiO₂0.05％，CaO 12.71％，MgO 1.41％，K₂O4.03％，Na₂O 12.57％，ZnO0.37％，B₂O₃0.18 percent, 0.83 percent of BaO and 0.78 percent of loss on ignition.

2. The ground glaze is characterized by further comprising the following raw materials in parts by mass: 7 parts of kaolin, 33 parts of potassium feldspar, 33 parts of albite, 13 parts of quartz powder, 8 parts of zirconium silicate, 1 part of calcined soil, 2 parts of wollastonite and 3 parts of zinc oxide.

3. A method for preparing a ground glaze is characterized by comprising the following steps:

step S11, weighing raw materials of the ground coat, and mixing the components to obtain a ground coat raw material mixture;

step S12, weighing 0.12% of CMC, 0.4% of sodium tripolyphosphate and 0.05% of preservative according to the mass percentage of the ground glaze raw material mixture, and mixing the materials with the ground glaze raw material mixture to obtain ground glaze ball-milling precursor;

step S13, preparing a base glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the ground glaze ball-milling precursor, and controlling the ground glaze slurry to pass through a 325-mesh sieve with 0.1-0.3 percent of screen residue to obtain the ground glaze.

4. A black inkjet ceramic tile, comprising the ground glaze of claim 1 or 2.

5. A method for manufacturing a black ink-jet ceramic tile, comprising:

s21, pressing and molding the powder, and drying the powder in a drying kiln to obtain a blank;

step S22, blowing dust on the surface of the dried green body, spraying water, and spraying the ground coat according to claim 1 or 2 to obtain a green brick;

step S23, performing ink-jet printing decoration and surface glaze spraying on the green brick after the ground glaze spraying in sequence, wherein the specific gravity of the surface glaze is 1.83 +/-0.2, and the glaze spraying amount is 310 +/-2 g/m²；

Step S24, firing the green brick sprayed with the overglaze in a kiln for 70 +/-5 min in an oxidizing atmosphere to obtain a semi-finished product of the black ink-jet ceramic tile;

and step S25, polishing, waxing, edging and film pasting the semi-finished product of the black ink-jet ceramic tile to obtain a finished product of the black ink-jet ceramic tile.

6. The method for manufacturing black inkjet ceramic tiles according to claim 5, wherein the amount of water sprayed in step S22 is 78 ± 2g/m²。

7. The method for manufacturing black inkjet ceramic tiles according to claim 5, wherein the specific gravity of the ground coat in step S22 is 1.80 ± 0.2, and the glazing amount is 530 ± 2g/m²。

8. The method for manufacturing black inkjet ceramic tiles according to claim 5, wherein the raw material composition of the overglaze in the step S23 comprises the following components in percentage by mass: 6 parts of kaolin, 33 parts of TH-1236 frit, 23 parts of 1212 frit, 12 parts of quartz powder, 16 parts of calcite, 7 parts of wollastonite and 3 parts of zinc oxide;

the TH-1236 frit comprises the following raw materials in percentage by mass: SiO 2₂49.94％，Al₂O₃19.88％，Fe₂O₃0.13％，CaO 8.40％，MgO 6.23％，K₂O 0.34％，Na₂O 3.16％，ZnO 2.21％，B₂O₃0.79 percent, 4.49 percent of BaO and 4.43 percent of ignition loss;

the 1212 frit comprises the following raw materials in percentage by mass: SiO 2₂58.22％，Al₂O₃7.51％，Fe₂O₃0.12％，CaO 9.82％，MgO 1.02％，K₂O 4.48％，Na₂O0.65％，ZnO 15.00％，B₂O₃1.96%, BaO0.07%, loss on ignition 1.15%.

9. The method of manufacturing black inkjet ceramic tiles according to claim 8, wherein the overglaze is prepared by a method comprising:

s31, weighing raw materials of the overglaze, and mixing the components to obtain an overglaze raw material mixture;

step S32, weighing 0.15% of CMC, 0.5% of sodium tripolyphosphate and 0.05% of preservative according to the weight ratio of the obtained overglaze raw material mixture, and mixing the weighed materials with the overglaze raw material mixture to obtain overglaze ball-milling precursor;

step S33, preparing a glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the glaze slurry before ball milling, and controlling the glaze slurry after ball milling to pass through a 325-mesh sieve with the screen residue of 0.2-0.4 percent to obtain the glaze.

10. The method for manufacturing black inkjet ceramic tiles according to claim 5, wherein the maximum firing temperature in step S24 is 1160 ± 5 ℃ at the bottom temperature, 1140 and 1150 ℃.

Technical Field

The invention relates to the field of production of black ink-jet ceramic tiles, in particular to a ground glaze and a preparation method thereof, and a black ink-jet ceramic tile and a manufacturing method thereof.

Background

At present, black ink-jet ceramic tile products such as black golden flower, Lawren black gold and the like which are popular in the market are generally decorated by using printing technologies to be eliminated such as silk screen printing or rubber roller printing; in order to improve the production efficiency, ink-jet printing is generally used for producing the full-glazed black ink-jet ceramic tile; however, the black ink-jet ceramic tile has dark color and very large consumption of black and blue inks; because the ink is oily and the glaze is aqueous, when the using amount of the ink is large, the ink is not dried timely, and when the glaze is applied to the incompletely dried ink, the glaze and the ink are mutually repelled, the glaze cannot be covered on the incompletely dried ink, the glaze avoiding defect occurs, and the consistency of the appearance of the black ink-jet ceramic tile product is seriously influenced.

Therefore, how to provide a priming glaze for black ink-jet ceramic tiles capable of avoiding the occurrence of glaze avoidance defects is a problem to be solved urgently.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a ground glaze, a black ink-jet ceramic tile and a manufacturing method thereof, and aims to solve the problem that the glaze-avoiding defect is easy to occur during ink-jet printing decoration of the existing black ink-jet ceramic tile.

In order to solve the technical problems, the invention provides the following technical scheme: a ground coat comprises the following raw materials in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts of 965 frit;

wherein the 965 frit comprises the following chemical components in percentage by mass: SiO 2₂49.97％，Al₂O₃16.96％，Fe₂O₃0.14％，TiO₂0.05％，CaO 12.71％，MgO 1.41％，K₂O 4.03％，Na₂O12.57％，ZnO 0.37％，B₂O₃0.18 percent, 0.83 percent of BaO and 0.78 percent of loss on ignition.

In order to solve the above technical problems, the present invention provides another technical solution as follows: the ground glaze further comprises the following raw materials in parts by mass: 7 parts of kaolin, 33 parts of potassium feldspar, 33 parts of albite, 13 parts of quartz powder, 8 parts of zirconium silicate, 1 part of calcined soil, 2 parts of wollastonite and 3 parts of zinc oxide.

In order to solve the above technical problems, the present invention provides another technical solution as follows: a method of preparing a ground glaze, comprising:

step S11, weighing raw materials of the ground coat, and mixing the components to obtain a ground coat raw material mixture;

step S12, respectively weighing 0.12% of CMC, 0.4% of sodium tripolyphosphate and 0.05% of preservative according to the mass percentage of the obtained ground coat raw material mixture, and mixing the CMC, the sodium tripolyphosphate and the preservative with the ground coat raw material mixture to obtain ground coat ball-milling precursor;

step S13, preparing a base glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the ground glaze ball-milling precursor, and controlling the ground glaze slurry to pass through a 325-mesh sieve with 0.1-0.3 percent of screen residue to obtain the ground glaze.

In order to solve the above technical problems, the present invention provides another technical solution as follows: a black ink jet ceramic tile, wherein the black ink jet ceramic tile comprises an undercoating as described above.

In order to solve the above technical problems, the present invention provides another technical solution as follows: a method of making a black ink-jet ceramic tile, comprising:

s21, pressing and molding the powder, and drying the powder in a drying kiln to obtain a blank;

step S22, blowing dust on the surface of the dried green body, spraying water, and spraying the ground coat according to claim 1 or 2 to obtain a green brick;

step S23, performing ink-jet printing decoration and surface glaze spraying on the green brick after the ground glaze spraying in sequence, wherein the specific gravity of the surface glaze is 1.83 +/-0.2, and the glaze spraying amount is 310 +/-2 g/m²；

Step S24, firing the green brick sprayed with the overglaze in a kiln for 70 +/-5 min in an oxidizing atmosphere to obtain a semi-finished product of the black ink-jet ceramic tile;

and step S25, polishing, waxing, edging and film pasting the semi-finished product of the black ink-jet ceramic tile to obtain a finished product of the black ink-jet ceramic tile.

Further, the amount of water sprayed in the step S22 is 78 + -2 g/m²。

Further, the specific gravity of the ground coat in the step S22 is 1.80 plus or minus 0.2, and the glazing amount is 530 plus or minus 2g/m²。

Further, the overglaze in the step S23 includes, by mass: 6 parts of kaolin, 33 parts of TH-1236 frit, 23 parts of 1212 frit, 12 parts of quartz powder, 16 parts of calcite, 7 parts of wollastonite and 3 parts of zinc oxide;

the TH-1236 frit comprises the following raw materials in percentage by mass: SiO 2₂49.94％，Al₂O₃19.88％，Fe₂O₃0.13％，CaO 8.40％，MgO 6.23％，K₂O 0.34％，Na₂O 3.16％，ZnO 2.21％，B₂O₃0.79 percent, 4.49 percent of BaO and 4.43 percent of ignition loss;

the 1212 frit comprises the following raw materials in percentage by mass: SiO 2₂58.22％，Al₂O₃7.51％，Fe₂O₃0.12％，CaO 9.82％，MgO 1.02％，K₂O 4.48％，Na₂O 0.65％，ZnO 15.00％，B₂O₃1.96%, BaO 0.07%, loss on ignition 1.15%.

Further, the preparation method of the overglaze comprises the following steps:

s31, weighing raw materials of the overglaze, and mixing the components to obtain an overglaze raw material mixture;

step S32, weighing 0.15% of CMC, 0.5% of sodium tripolyphosphate and 0.05% of preservative according to the weight ratio of the obtained overglaze raw material mixture, and mixing the weighed materials with the overglaze raw material mixture to obtain overglaze ball-milling precursor;

step S33, preparing a glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the glaze slurry before ball milling, and controlling the glaze slurry after ball milling to pass through a 325-mesh sieve with the screen residue of 0.2-0.4 percent to obtain the glaze.

Further, the maximum firing temperature in the step S24 is 1160 ± 5 ℃ at the bottom temperature, 1140 and 1150 ℃.

Has the advantages that: the invention provides a ground glaze and a preparation method thereof, a black ink-jet ceramic tile and a manufacturing method thereof, wherein the ground glaze comprises the following raw materials in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts of 965 frit, wherein the 965 frit comprises the following chemical components in percentage by mass: SiO 2₂49.97％，Al₂O₃16.96％，Fe₂O₃0.14％，TiO₂0.05％，CaO 12.71％，MgO 1.41％，K₂O 4.03％，Na₂O 12.57％，ZnO 0.37％，B₂O₃0.18 percent, 0.83 percent of BaO and 0.78 percent of loss on ignition. Through control the addition of kaolin, and then when making on the ground coat jet printing decorate, increased the infiltration degree of depth of ink, and then promoted the drying efficiency of ink, then effectual avoided behind the jet printing avoid the glaze defect, the apparent uniformity that has shown the promotion black inkjet ceramic brick.

Drawings

FIG. 1 is a schematic flow chart of a method for preparing a ground glaze in the invention;

FIG. 2 is a schematic flow chart of a method of making a black ink-jet ceramic tile according to the present invention;

FIG. 3 is a schematic flow chart of the process for preparing the overglaze in the process for manufacturing black inkjet ceramic tiles of the present invention.

Detailed Description

The invention provides a ground glaze and a preparation method thereof, a black ink-jet ceramic tile and a manufacturing method thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a ground glaze which comprises the following raw materials in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts of 965 frit; wherein the 965 frit comprises the following chemical components in percentage by mass: SiO 2₂49.97％，Al₂O₃16.96％，Fe₂O₃0.14％，TiO₂0.05％，CaO 12.71％，MgO 1.41％，K₂O 4.03％，Na₂O 12.57％，ZnO 0.37％，B₂O₃0.18 percent, 0.83 percent of BaO and 0.78 percent of loss on ignition. It can be understood that through control the addition of kaolin, and then when making on the ground coat carry out the inkjet printing and decorate, increased the infiltration degree of depth of ink, and then promoted the drying efficiency of ink, then effectual avoided avoiding behind the inkjet printing the glaze defect, the apparent uniformity that has shown the promotion black inkjet ceramic brick.

The invention also provides another ground coat, which comprises the following raw materials in parts by mass: 7 parts of kaolin, 33 parts of potassium feldspar, 33 parts of albite, 13 parts of quartz powder, 8 parts of zirconium silicate, 1 part of calcined soil, 2 parts of wollastonite and 3 parts of zinc oxide. It can be understood that by controlling the addition amount of the kaolin, the infiltration rate of the ink is accelerated when the ink-jet printing decoration is carried out on the ground coat, so that the drying efficiency of the ink is effectively improved, and the glaze-avoiding defect after the ink-jet printing is effectively avoided; meanwhile, wollastonite and zinc oxide are used for replacing talcum powder, so that the melting effect of ink for inkjet printing on the ground coat is effectively improved, and the color development effect of the ink is remarkably improved while the glaze avoidance defect is overcome.

Referring to fig. 1, the present invention also provides a method for preparing a ground glaze, which comprises,

step S11, weighing raw materials of the ground coat, and mixing the components to obtain a ground coat raw material mixture;

step S12, respectively weighing 0.12% of CMC, 0.4% of sodium tripolyphosphate and 0.05% of preservative according to the mass percentage of the obtained ground coat raw material mixture, and mixing the CMC, the sodium tripolyphosphate and the preservative with the ground coat raw material mixture to obtain ground coat ball-milling precursor;

step S13, preparing a base glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the ground glaze ball-milling precursor, and controlling the ground glaze slurry to pass through a 325-mesh sieve with 0.1-0.3 percent of screen residue to obtain the ground glaze.

It should be noted that the raw material of the ground coat is the raw material of the ground coat in the above embodiment of the present invention, and the raw materials are weighed according to the content ratio of each component and the raw material defined in the above embodiment of the present invention, and then based on the actual weight of the weighed raw material of the ground coat, the CMC is 0.12%, the sodium tripolyphosphate is 0.4%, and the preservative is 0.05%. The method for preparing the ground glaze can be understood that the adding amount of the kaolin is controlled, so that the infiltration rate and the infiltration depth of the ink are increased when the ink-jet printing decoration is carried out on the ground glaze, the drying efficiency of the ink is improved, and the glaze-avoiding defect after the ink-jet printing is effectively avoided; meanwhile, wollastonite and zinc oxide are used for replacing talcum powder, so that the melting effect of ink for inkjet printing on the ground coat is effectively improved, and the infiltration rate and the infiltration depth of the ink are effectively controlled by controlling the fineness of the ground coat, so that the glaze-avoiding defect is overcome, the color development effect of the ink is remarkably improved, and the appearance consistency of the black inkjet ceramic tile is remarkably improved.

The invention also provides a black ink-jet ceramic tile which comprises the ground glaze provided in the above embodiment of the invention. The black ink-jet ceramic tile provided by the invention can be understood that the addition amount of the kaolin is controlled, so that the infiltration rate and the infiltration depth of ink are increased when ink-jet printing decoration is carried out on the ground glaze, the drying efficiency of the ink is further improved, and the glaze-avoiding defect after the ink-jet printing is effectively avoided; meanwhile, wollastonite and zinc oxide are used for replacing talcum powder, so that the melting effect of ink for inkjet printing on the ground coat is effectively improved, and the infiltration rate and the infiltration depth of the ink are effectively controlled by controlling the fineness of the ground coat, so that the glaze-avoiding defect is overcome, the color development effect of the ink is remarkably improved, and the appearance consistency of the black inkjet ceramic tile is remarkably improved.

Referring to fig. 2, the present invention further provides a method for manufacturing a black inkjet ceramic tile, comprising:

s21, pressing and molding the powder, and drying the powder in a drying kiln to obtain a blank;

s22, blowing dust on the surface of the dried green body, spraying water and spraying the ground glaze in the embodiment of the invention to obtain a green brick;

step S23, performing ink-jet printing decoration and surface glaze spraying on the green brick after the ground glaze spraying in sequence, wherein the specific gravity of the surface glaze is 1.83 +/-0.2, and the glaze spraying amount is 310 +/-2 g/m²；

Step S24, firing the green brick sprayed with the overglaze in a kiln for 70 +/-5 min in an oxidizing atmosphere to obtain a semi-finished product of the black ink-jet ceramic tile;

and step S25, polishing, waxing, edging and film pasting the semi-finished product of the black ink-jet ceramic tile to obtain a finished product of the black ink-jet ceramic tile.

It should be noted that the ground coat is the ground coat provided in the above embodiments of the present invention; the black ink-jet ceramic tile prepared by the black ink-jet ceramic tile manufacturing method provided by the invention can effectively avoid the glaze-avoiding defect during the glaze pouring after the ink-jet printing decoration, thereby not only ensuring the appearance consistency of the black ink-jet ceramic tile, but also effectively improving the preparation efficiency of the black ink-jet ceramic tile; meanwhile, the color development effect of the black ink-jet ceramic tile can be remarkably improved, and the appearance decoration effect of the black ink-jet ceramic tile is improved.

In some embodiments, the amount of water sprayed in step S22 is 78 + -2 g/m²。

In some embodiments, the specific gravity of the ground coat in the step S22 is 1.80 + -0.2, and the glazing amount is 530 + -2 g/m²。

In some embodiments, the raw material composition of the overglaze in the step S23 includes, in mass fraction: 6 parts of kaolin, 33 parts of TH-1236 frit, 23 parts of 1212 frit, 12 parts of quartz powder, 16 parts of calcite, 7 parts of wollastonite and 3 parts of zinc oxide;

the TH-1236 frit comprises the following raw materials in percentage by mass: SiO 2₂49.94％，Al₂O₃19.88％，Fe₂O₃0.13％，CaO 8.40％，MgO 6.23％，K₂O 0.34％，Na₂O 3.16％，ZnO 2.21％，B₂O₃0.79 percent, 4.49 percent of BaO and 4.43 percent of ignition loss;

the 1212 frit comprises the following raw materials in percentage by mass: SiO 2₂58.22％，Al₂O₃7.51％，Fe₂O₃0.12％，CaO 9.82％，MgO 1.02％，K₂O 4.48％，Na₂O 0.65％，ZnO 15.00％，B₂O₃1.96%, BaO 0.07%, loss on ignition 1.15%.

In some embodiments, the method of preparing the overglaze comprises:

s31, weighing raw materials of the overglaze, and mixing the components to obtain an overglaze raw material mixture;

step S32, weighing 0.15% of CMC, 0.5% of sodium tripolyphosphate and 0.05% of preservative according to the weight ratio of the obtained overglaze raw material mixture, and mixing the weighed materials with the overglaze raw material mixture to obtain overglaze ball-milling precursor;

step S33, preparing a glaze ball-milling precursor according to the weight ratio: ball: water 1: 2: 0.4, carrying out wet ball milling on the glaze slurry before ball milling, and controlling the glaze slurry after ball milling to pass through a 325-mesh sieve with the screen residue of 0.2-0.4 percent to obtain the glaze.

In some embodiments, the maximum firing temperature in the step S24 is 1160 ± 5 ℃ for the bottom temperature, 1140-.

The present invention will be described in further detail with reference to specific examples.