How To Improve The Stability Of Domestic Ceramic Ink

Most ceramic enterprises reflect that ceramic ink in the application process often appears in the drawing, hair color effect is poor and other issues, which has a great relationship with the stability of the product. National ceramic and plumbing product volume supervision and inspection center engineer Hu Jun pointed out that ceramic ink cable often appears in large areas of dark inkjet printing, which has a great relationship with the nozzle itself, but essentially because the ink system is unstable, colorants easily reunite, settle, blocking the nozzle or residual ink glued to the nozzle. This problem can be solved by selecting color materials with high crystallization, small particle size and narrow particle size distribution, choosing the right dispersion system and suitable dispersant, and selecting wear-resistant sanders and sanding media. And reasonable imagination of waste ink recovery system, dust- and waterproof-steam system, as well as the nozzle automatic cleaning system, can reduce the possibility of ink clogging nozzle.

Tao Zheng pigment learned that the problem of hair color effect mainly includes the monotony of the ink color series, the instability of the color material in the process of burning, etc., the factors affecting the color effect include the type of color material, the crystallisity of the color material, the solid content of the color material in the ink, etc. The coloring of ceramic coloring is mainly divided into crystal coloring, ion coloring and colloid allotment. Among them, crystal coloring is the most stable, such as corundum-type chrome aluminum red, redstone-type tin yellow, zircon-type indigo blue and so on. In the structural system of ceramic color material, the crystal structure of the crystal crystal crystal type ceramic color material is dense, hair color is stable, the atmosphere sensitivity is small, especially the high temperature stability and chemical stability is good, the saturation is increased with the fineness, such as cobalt blue series, brown and yellow series and black series. "Therefore, ceramic ink is best to choose the ceramic color of structural types such as spinel to ensure hair color effect. Hu Jun said.

The stability of ceramic ink also involves the combination of ink droplets and blanks.

In the actual consumption, there is a problem of poor wetting of ink drops on the blank body and excessive diffusion of ink drops on the blank body. Poor wetting may require the addition of appropriate dispersants, so that ceramic ink non-polar organic matter can be wetted with the polar ceramic blanks. As for the excessive diffusion of ink on the blank, it may be because the surface tension of the ink is too small, can be solved by selecting the right dispersant, reducing the amount of dispersant added, increasing the content of color material and so on.