In situ production of nano-CoAl2O4 on a ceramic surface by ink-jet printing

Preparation and characterization of a stable nano-sized Zn x Co1–x Al2O4 ink for glass decoration by ink-jet printing

“…A high viscosity could lead to an insufficient jet of ink, whereas a significantly small viscosity could degrade inner resistance of the ink, which makes the ink drop crescent shaped, resulting in damped oscillation. [2,33] The viscosity of prepared blue glass ink was measured to be 28.45 mPa•s at room temperature, which allowed the glass ink to be printed well when flowing through the nozzles of the printer head and forming drops with proper physics and fluid mechanics performance during the printing process. [34,35]…”

Formulation of a graft polymer-containing aqueous yellow ceramic ink for digital ink-jet printing

“…8,9 As such, the physical properties of existing ceramic inks must be satised to ensure successful ink-jet printing for the decoration of ceramic tiles. [10][11][12][13] In this context, the ceramic pigments present in ceramic ink must be thermally stable to ensure that the desired color is maintained at sintering temperatures >1000 C. In addition, the pigment particles should show an appropriate particle size distribution and a high dispersion stability to prevent nozzle clogging of the inkjet printer head. 14 Furthermore, the rheological properties of the ceramic ink, such as the viscosity and surface tension, must be optimized along with the print head voltage and pulse width to ensure that spherical-shaped single ink droplets are formed without undesirable satellite droplets.…”

Synthesis and color properties of the TiO2@CoAl2O4 blue pigments with low cobalt content applied in ceramic glaze

“…Usually, the CoAl 2 O 4 pigments is manufactured by solid‐state reaction using cobalt oxide and alumina as raw materials at high temperature (1200‐1300°C). 8 However, the composition homogeneity and the particle size uniformity of the obtained pigments are difficult to control owing to the heterogeneous and agglomeration of CoAl 2 O 4 during high‐temperature reaction process . It is well‐known that the uniformity has a great effect on the coloring performance of the pigments .…”

“…8 However, the composition homogeneity and the particle size uniformity of the obtained pigments are difficult to control owing to the heterogeneous and agglomeration of CoAl 2 O 4 during hightemperature reaction process. 9,10 It is well-known that the uniformity has a great effect on the coloring performance of the pigments. 11 In addition, many studies indicate that cobalt is genotoxic, 12 induces oxidative stress, and is a hypoxia-simulating agent.…”