The hottest technology AC nano ink and nano varnis

Technical exchange: application of nano ink and nano varnish (II)

because the absorption of light waves by nano metal particles is different from that of ordinary materials, nano metal particles can fully absorb light waves and make themselves appear black. At the same time, in addition to the full absorption of light, nano metal particles can also scatter light. Therefore, using these characteristics of nano metal particles, nano metal particles can be added to black ink to produce nano black ink, which can greatly improve the purity and density of black ink. In addition, semiconductor nanoparticles exhibit certain characteristics of light absorption due to the significant quantum size effect and surface effect. Research shows that after the surface of nano semiconductor particles is chemically modified, the medium around the particles can strongly affect their optical properties, which is manifested in the red shift or blue shift of the absorption spectrum to achieve the purpose of energy saving. Experiments show that the light absorption edge of CdS nanoparticles has an obvious blue shift, and the absorption edge of TiO2 nanoparticles has a large red shift. Accordingly, if they are added to yellow ink and cyan ink respectively to make nano ink, the purity of yellow ink and cyan ink can be greatly increased. Using nano ink with specific nano particles to copy and print color prints can enrich the levels of prints, make the tones more obvious, and greatly enhance the ability to show image details, so as to obtain high-quality prints

nowadays, with the help of high and new technology, various components in ink (such as resin, pigment, filler, etc.) can be made into nano raw materials. In this way, because they are highly fine and have good flow and lubricity, they can achieve better dispersion, suspension and stability. With less pigment consumption, they have high coverage, good gloss, fine resin particle size, continuous film formation, uniform brightness, thin film layer, making the printed image clear, If used in UV ink, it may lead to faster curing speed, and eliminate the shrinkage and wrinkling of the ink film due to the fine and uniform dispersion of the filler. In the printing ink of glass ceramics, if the inorganic raw materials are composed of nano fineness, it will save a lot of raw materials and print more beautiful images. It brings a great change to the ink manufacturing industry in terms of pigments. It no longer depends on chemical pigments, but selects nanoparticles of appropriate volume to present different colors. Because when some substances are at the nano level, the particle size is different and the color is different, or different substances have different colors, such as TiO2 and SiO2 in the nano particles are white, CR203 is green, Fe2 culture is touching, and 03 is brown. In addition, inorganic nano materials such as nano Al203 have good fluidity, which can greatly improve the wear resistance of the ink film if added to the ink. Nano carbon black has conductivity, has a good shielding effect on static electricity, and prevents electrical signals from being interfered by external static electricity. If it is added to ink, it can be made into conductive large-scale plastic. There are dozens of electric inks in the market, such as high-capacity integrated circuits, modern contact panel switches, etc. In addition, if AG is made into nano scale instead of micron scale Ag in conductive ink, 50% of Ag powder can be saved. This conductive ink can be directly printed on ceramics and metals. The ink film is thin, uniform and smooth, and has good performance. If Cu and Ni materials are made into 0.1 ~ 1 m ultrafine particles, it can replace precious metals such as palladium and silver to conduct electricity

in addition, some nano particles have their own light-emitting groups, which can emit light by themselves, for example, - n = n - nano particles, etc. This is to cut some new nano luminescent materials from round steel, square steel and 6 angle steel. After a few minutes of light, they can self emit light in the dark for more than 12 to 24 hours. Their luminous intensity and maintenance time are more than 30 times that of traditional fluorescent materials. Moreover, the material itself is non-toxic, harmless and does not contain any radioactive elements. Its stability and weather resistance are excellent. And it can be recycled for unlimited times. The printing products printed with the ink added with this kind of nano particles do not need the irradiation of external light sources, and can be recognized by the human eye only by its own light, which can also achieve a good first-line anti-counterfeiting effect for anti-counterfeiting printing. For large-scale outdoor advertising spray painting or night malicious graphic printing, there is no need for external light sources, which can not only save energy, but also greatly facilitate users. In addition, because nanoparticles have good surface wettability, they adsorb on the surface of pigment particles in the ink, which can greatly improve the lipophilicity and wettability of the ink, and ensure the stability of the whole ink dispersion system, so the printability of nano ink with nanoparticles has been greatly improved. It is believed that with the further development of nano material technology, more nano materials with different characteristics will be recognized and used by people. Applying these nano materials to ink manufacturing can obtain special inks with different uses, which can be used for confidential document printing, various anti-counterfeiting printing and various handicraft printing, and can achieve extraordinary good results