Matte brick and preparation method
A soft light brick and soft light technology, which is applied in the field of ceramic tile preparation, can solve problems such as troublesome tile stain resistance, affecting surface decoration patterns, etc., and achieves broad application prospects, good color development, and the effect of reducing light pollution
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[0035] The invention provides a method for preparing soft light bricks, comprising:
[0036] (1) Prepare green body, bottom glaze slurry, surface glaze slurry and inkjet ink respectively;
[0037] Wherein, there are no special restrictions on the specific formula of the green body and the raw materials used, and those skilled in the art can choose according to the corresponding production situation; preferably, the formula of the green body is adopted, and the thermal expansion coefficient of the green body is the same as that of the glaze of the present invention. Fit to ensure that glaze cracking defects do not occur.
[0038] Preferably, the step of preparing green body comprises:
[0039] A) prepare powder and pigment respectively;
[0040] Specifically, it includes: preparing raw materials according to the formula of the green body, ball milling, spraying granulation, and obtaining powder after aging;
[0041] B) fully mixing the powder and the colorant to obtain a mix...
Embodiment 1
[0089] (1) Prepare green body, bottom glaze slurry, surface glaze slurry and inkjet ink respectively;
[0090] Bottom glaze paste formula: 29 parts of potassium feldspar, 20 parts of calcined alumina, 6 parts of kaolin, 8 parts of wollastonite, 4 parts of dolomite, 5 parts of calcined kaolin, 32 parts of high-temperature frit; chemical composition of bottom glaze paste For: SiO 2 54.14%, Al 2 o 3 31.33%, Fe 2 o 3 0.18%, TiO 2 0.08%, CaO 0.92%, MgO 0.05%, K 2 O 4.21%, Na 2 O 3.55%; the balance is impurities. The 325-mesh sieve of the bottom glaze is 0.78%, the specific gravity is 1.85g / mL, and the flow rate is 33 seconds.
[0091] The formula of the surface glaze slurry is: 28 parts of albite, 4 parts of calcined zinc oxide, 5 parts of wollastonite, 9 parts of dolomite, 5.5 parts of calcined talc, 9 parts of barium carbonate, 10 parts of strontium carbonate, 6 parts of kaolin, calcined 4 parts of kaolin, 15 parts of transparent frit; Among them, the composition of t...
Embodiment 2
[0105] (1) Prepare green body, bottom glaze slurry, surface glaze slurry and inkjet ink respectively;
[0106] Bottom glaze paste formula: 28 parts of potassium feldspar, 17 parts of calcined alumina, 8 parts of kaolin, 5 parts of wollastonite, 3 parts of dolomite, 6 parts of calcined kaolin, 34 parts of high-temperature frit; chemical composition of bottom glaze paste For: SiO 2 53.34%, Al 2 o 3 29.38%, Fe 2 o 3 0.26%, TiO 2 0.07%, CaO 0.67%, MgO 0.14%, K 2 O 3.87%, Na 2 O 4.2%; the balance is impurities. The 325-mesh sieve of the bottom glaze is 0.58%, the specific gravity is 1.86g / mL, and the flow rate is 33 seconds.
[0107] The formula of the surface glaze slurry is: 29 parts of albite, 3.5 parts of calcined zinc oxide, 6 parts of wollastonite, 9 parts of dolomite, 7.5 parts of calcined talc, 8 parts of barium carbonate, 7 parts of strontium carbonate, 7.5 parts of kaolin, calcined 5 parts of kaolin, 18 parts of transparent frit; Among them, the composition of...
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