A kind of preparation method of high temperature yellow pigment for ceramic laser printing
A yellow pigment and laser printing technology, which is applied in the field of high-temperature-resistant yellow pigment, can solve the problems of insufficient decoration methods, and achieve the effect of strong color development, complete coating, and small particles
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Embodiment 1
[0034] A preparation method of a high-temperature yellow pigment for ceramic laser printing, comprising the steps of:
[0035] (1) Synthesis of praseodymium ion-doped zirconium silicate yellow pigment by semi-liquid and semi-solid phase method
[0036] Drop an equal volume of 2mol / L zirconium oxychloride octahydrate solution and 3mol / L sodium hydroxide solution into continuously stirring water to form zirconium colloid. Continue stirring for 100min;
[0037] Massive Zr 4+ : Si 4+ =1:1.0 Add white carbon black to the zirconium colloid, and stir for 150 minutes to form a zirconium-silicon mixed colloid;
[0038] Discharge, press filter, wash the mixed colloid with water for 3 hours, and dry at 120°C for 48 hours to obtain a zirconium-silicon mixed powder;
[0039] Mix 86wt% zirconium-silicon mixed powder, 6wt% praseodymium oxide, 3wt% ammonium fluoride, and 5wt% ammonium chloride uniformly, calcinate at 900°C for 3 hours to obtain praseodymium ion-doped zirconium silicate ye...
Embodiment 2
[0050] A preparation method of a high-temperature yellow pigment for ceramic laser printing, comprising the steps of:
[0051] (1) Synthesis of praseodymium ion-doped zirconium silicate yellow pigment by semi-liquid and semi-solid phase method
[0052] Drop an equal volume of 1.5mol / L zirconium chloride solution and 4mol / L potassium hydroxide solution into the continuously stirring water to form zirconium colloid. During the synthesis process, control the pH=6~8, and continue stirring after the dropwise addition 120min;
[0053] Massive Zr 4+ : Si 4+ =1:1.1 Add white carbon black to the zirconium colloid, and stir for 120 minutes to form a zirconium-silicon mixed colloid;
[0054] Discharge, press filter, wash the mixed colloid with water for 4 hours, and dry at 130°C for 24 hours to obtain a zirconium-silicon mixed powder;
[0055] Mix 92wt% zirconium-silicon mixed powder, 5wt% praseodymium oxide, 1wt% sodium fluoride, and 2wt% potassium chloride evenly, and calcinate at ...
Embodiment 3
[0066] A preparation method of a high-temperature yellow pigment for ceramic laser printing, comprising the steps of:
[0067] (1) Synthesis of praseodymium ion-doped zirconium silicate yellow pigment by semi-liquid and semi-solid phase method
[0068] Drop an equal volume of 2.5mol / L zirconium sulfate solution and 4mol / L sodium carbonate solution into the continuously stirring water to form zirconium colloid. During the synthesis process, control the pH=6~8, and continue stirring for 90min after the dropwise addition;
[0069] Massive Zr 4+ : Si 4+ =1:1.1 Add quartz powder to the zirconium colloid, and stir for 180min to form zirconium-silicon mixed colloid;
[0070] Discharge, press filter, wash the mixed colloid with water for 2 hours, and dry at 100°C for 72 hours to obtain a zirconium-silicon mixed powder;
[0071] Mix 88wt% zirconium-silicon mixed powder, 6wt% praseodymium oxide, 2wt% sodium fluoride, and 4wt% potassium chloride evenly, and calcinate at 950°C for 3 ho...
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