9 results about "Ceramic colorants" patented technology

The invention discloses a high-chemical-stability cloud transmutation glaze and a preparation method thereof, and relates to the technical field of ceramic glazes, and the high-chemical-stability cloud transmutation glaze is prepared from the following components: high-boron frit, low-expansion frit, potassium feldspar, quartz, calcite, calcined talc, calcined zinc oxide, china clay A, china clay B, titanium dioxide, a ceramic colorant and vanadium pentoxide. Wherein the china clay A is selected from kaolin containing 0.05-0.4 wt% of rare earth oxide, and the china clay B is selected from large-particle suspended kaolin with 325-mesh screen residue less than or equal to 0.1% and ignition loss of 5-8%. The high-chemical-stability cloud transmutation glaze provided by the invention has a natural and elegant cloud transmutation artistic effect which is far better than that of the traditional double-layer or multi-layer transmutation glaze; the chemical stability is obviously improved, and the chemical stability can pass the most rigorous 200-turn dishwasher cycle test in European ICTS.

The invention is applicable to the field of preparation of rare earth ceramic pigments, and provides a preparation method of a rare earth ceramic pigment for building wall surfaces, which comprises the following steps: S1, weighing industrial neodymium oxide and aluminum oxide in equal proportion, adding water, mixing and grinding to obtain slurry A; s2, weighing yttrium oxide and aluminum hydroxide in equal proportion, adding water and chromium sesquioxide, and mixing and grinding to obtain slurry B; s3, mixing the slurry A obtained in the step S1 and the slurry B obtained in the step S2 to obtain slurry C; and S4, the slurry C is poured into a drying cylinder to be dried, a stirring mechanism is arranged in the drying cylinder to stir and heat the slurry C, and a spiral conveying mechanism in the drying cylinder drives the slurry C to be vertically conveyed. The problems that in a traditional drying process, due to the fact that the conveying speed is not matched with the heating uniformity, the drying efficiency is low, and materials are heated unevenly are solved.

The application belongs to the technical field of ceramic pigments, and particularly discloses a heat-reflecting brown ceramic pigment, a preparation method and application thereof. 1‑x (Li,Fe) x TiSiO5, wherein 0.1<=x<=0.4. The application is based on a stable titanium sphene crystal phase, and trivalent coloring ions Fe 3+ and monovalent Li + are co-doped in a molar ratio of 1:1, Ca 2+ in the titanium sphene structure is replaced by the composite ions, a brown titanium sphene pigment with a stable structure is formed, effective coloring of the titanium sphene is realized on the premise of retaining high reflectivity of the titanium sphene, the reflectivity of the pigment in the visible-near infrared band can reach 86-90%, and meanwhile, in the preparation, a method of ball milling followed by superfine grinding is adopted to improve the reactivity of the raw materials in the refining process by mechanical chemical action, and the color development and heat color reflection effect of the pigment are further improved.

The application provides a wrapped carbon black ceramic pigment and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing ceramic raw materials and a carbon source to obtain a mixture; (2) performing vacuum calcination treatment on the mixture at a calcination temperature of greater than or equal to 1400 DEG C to obtain the wrapped carbon black ceramic pigment. The preparation method provided by the application performs vacuum calcination treatment at a calcination temperature of greater than or equal to 1400 DEG C, which improves the calcination temperature, thereby improving the wrapping efficiency and wrapping density, so that the prepared wrapped carbon black ceramic pigment has a great improvement in high-temperature oxidation resistance, high-temperature corrosion resistance, high-temperature resistance to alkali metal and alkaline earth metal and other additives.

The application discloses a kind of high dispersibility ceramic ink and preparation method and application thereof, belong to ceramic ink field.The high dispersibility ceramic ink includes ceramic colorant, the ceramic colorant is ZrO2@AlOOH prepared by sol-gel method;The ZrO2@AlOOH is zirconium dioxide as core, and the outer layer is covered with boehmite;Boehmite is 3-5wt% of the mass of zirconium dioxide.The boehmite as cladding layer can form hydration shell on the surface of zirconium dioxide, inhibit the agglomeration between particles, improve the stability of colloid, and boehmite contains more active hydroxyl group, can further weaken the interaction force between ceramic colorant, avoid particle aggregation, and also can improve the hiding power and whiteness of ceramic ink, improve color development performance.Using phosphorylated polyether modified silicone oil as dispersant, the dispersibility of ink can be further improved, and ceramic ink with excellent rheological property and long-term storage without sedimentation is obtained.

The invention discloses high-dispersity ceramic ink as well as a preparation method and application thereof, and belongs to the field of ceramic ink. The high-dispersity ceramic ink comprises a ceramic pigment, wherein the ceramic pigment is ZrO2 (at) AlOOH prepared by a sol-gel method; the ZrO2-coated AlOOH takes zirconium dioxide as a core, and the outer layer of the ZrO2-coated AlOOH is coated with boehmite; the mass of the boehmite is 3-5wt% of the mass of the zirconium dioxide. Boehmite as a coating layer can form a hydration shell layer on the surface of zirconium dioxide, restrain agglomeration among particles and improve colloid stability, and boehmite contains more active hydroxyl groups, so that interaction force among ceramic pigments can be further weakened, particle aggregation can be avoided, meanwhile, covering power and whiteness of the ceramic ink can be improved, and the ceramic ink has a good application prospect. The color development performance is improved. The phosphorylated polyether modified silicone oil is adopted as a dispersing agent, the dispersity of the ink can be further improved, and the ceramic ink which is excellent in rheological property and does not settle after being stored for a long time is obtained.

The invention discloses a preparation method of a black ceramic pigment and the black ceramic pigment prepared by the method. Comprising the steps of Fe-Cr-Co-Ni mixed solution preparation, PH value adjustment, hydrothermal reaction and drying. According to the method, the micro-nano particles can be prepared at a low temperature, compared with a solid phase method, the method has the great advantage in the aspect of energy consumption, the size is uniform, impurities are few, crystallinity is good, and the requirement of ceramic ink-jet printing can be met.

According to the high-temperature-resistant superfine zirconium-based yellow ceramic pigment and the preparation method thereof, Ce < 4 + > doping enhanced color generation is provided aiming at insufficient color generation of a superfine terbium yellow pigment, and the problem of yellow green color tone easily occurring in traditional terbium doping is solved; a liquid phase method is adopted for mixing from a molecular level, so that coarse and uneven particles caused by grinding by a solid phase method are avoided; through the charge compensation effect of Ce < 4 + >, the stability of Tb < 4 + > can be realized in a conventional air atmosphere, and the Tb < 4 + > can be stabilized only through one-time calcination in the air atmosphere, and the calcination temperature is far lower than that of a traditional solid phase method. The prepared pigment has the comprehensive advantages of ultrafine particle size, high tinting strength, high stability, high process feasibility and the like, and also has the characteristics of pure and saturated color generation, excellent dispersity, environmental protection, energy conservation, good process stability and the like.

The invention belongs to the technical field of ceramic pigments, and discloses a coated ceramic pigment, a preparation method thereof and ink-jet printing ceramic ink. The preparation method of the coated ceramic pigment comprises the following steps: adding a zirconium source and a cadmium source into water, and mixing to obtain a solution A; adding a sulfur source, a selenium source, a silicon source and inorganic base into water, and mixing to obtain a solution B; dropwise adding the solution A and the solution B into an aqueous solution containing a dispersing agent together, and stirring to obtain a mixed solution; dropwise adding an aqueous solution of alkali metal salt into the mixed solution, continuously stirring, and carrying out suction filtration and drying to obtain a precursor; and mixing the precursor with a mineralizing agent, and calcining to obtain the catalyst. The ceramic ink for ink-jet printing is excellent in flowing property, and only 20-32 min is needed for suction filtration of 500 mL of ink; after high-temperature calcination, the product is bright and bright red, and the Lab values of the product are respectively 56.5 to 58.8, 27.4 to 30.1 and 17.0 to 23.0.