Nanometer ink guides printing quality to a new level

Studies have shown that after chemical modification of the surface of the nano-semiconductor particles, the surrounding medium of the particles can strongly affect the optical properties, showing a red-shift or blue-shift of the absorption spectrum. Experiments have shown that there is a clear blue shift in the light-absorbing edge of the Cds nanoparticles and a large red shift in the absorption edge of the Tio2 nanoparticles. Accordingly, if they are added to yellow and cyan inks to make nano inks, their purity can be improved. With the addition of nano-particles containing nano-particles that are specifically designed to reproduce printed color prints, the levels will be more abundant, the tone will be more distinct, and the ability to represent the details of the images will be even greater.
Now with the help of high technology, various ingredients in inks (such as resins, pigments, fillers, etc.) can be made into nano-scale raw materials. In this way, due to its high degree of fineness, it has good flow and lubricity, can achieve better dispersion and suspension, stability, less pigment, high hiding power, good gloss, fine resin particle size, continuous film formation, uniform smoothness, Thin layers, printed images are clear in summer. If used in UV inks, the curing speed can be accelerated, and shrinkage and wrinkling of the ink film can be eliminated due to the fine and uniform dispersion of the filler. In the glass-ceramic ink, if the inorganic material is made into nano-scale fineness, it will save a lot of raw materials and print more refined and more beautiful high-quality images. This brings about a huge change in the ink manufacturing industry, making it no longer dependent on chemical pigments, but rather choosing the appropriate volume of nanoparticles to present different colors. Because there are substances in the nanoscale, the different sizes of the particles are also different, or different materials of different colors, such as TiO2, SiO2Z in the nanoparticles are white, Cr2O3 is green Fe2O3 is brown. There are inorganic nanomaterials such as nano-Al2O3, which have good fluidity, and if added to the ink, the wear resistance of the ink film can be greatly improved. Nano-scale carbon ink is conductive and has a good shielding effect against static electricity. It prevents telecommunication signals from being disturbed by external static electricity. If it is added to ink, it can be made into conductive ink, large-capacity integrated circuits, modern contact panel switches, etc. . In addition, in the conductive ink, such as the Ag made of nanometer instead of micron Ag, can save 50% of Ag powder, this conductive ink can be printed directly on the ceramic and metal, the ink layer and uniform smooth, good performance. If the Cu, Ni material made of ultra-fine particles 01-1um, it can replace palladium and silver and other precious metals conductive. Therefore, the combination of nanotechnology and anti-counterfeiting technology will open up another broad field of security ink.
In addition, some nano-particles themselves have luminescent groups and may emit light themselves, such as [N-H, H-H] nanoparticles. Printed with the ink added with this kind of particles does not require the irradiation of an external light source, and can be recognized by the human eye by its own light-generating knowledge. It is also used for anti-counterfeit printing and achieves excellent results, and is used for outdoor large-scale advertising printing or printing. Photographic prints that are read at night eliminate the need for external light sources, which can not only save energy, but also greatly facilitate users.
Because nanoparticles have good surface wettability, they are adsorbed on the surface of the pigment particles in the ink, can greatly improve the ink's lipophilicity and wettability, and can ensure the stability of the entire ink dispersion system, so the nanoparticles are added. The nano ink printing performance is greatly improved. With the further development of nanomaterial technology, it is believed that more nanomaterials with different characteristics will be recognized and used by people.
In electrostatic copying, magnetic nanopowders are used instead of non-magnetic toners, which are widely used today, to eliminate the need to add ferromagnetic particles as a carrier in non-magnetic toners and to make a single-component copying developer. Raw materials and improve copy quality. As for the source of nanomaterials. In fact, there are many ways to obtain nanomaterials, such as high-temperature sintering (such as sintering technology of carbon nanotubes), precipitation method, high-temperature dissolution method, chemical vapor condensation method, or modern plasma energy polymerization method.