Classification plastic screen printing inks and ink prerequisites have evaporation drying inks, UV-curable inks, oxidative drying ink. ① volatile dry ink: screen printing is one of the most used ink. The main components of the ink film is a polymer material, solvent evaporation after printing, the polymer material to form an ink film. This evaporation drying process is reversible, i.e., the ink film drying solvent may be used redissolved. After the ink is transferred to the substrate, the surface UV ink ink ink film wholesalers will solvents, solvent evaporation occurs first. Solvent in the ink by the action of the vapor pressure of diffusion in the atmosphere, forming a liquid film on the surface of the ink film, and then volatilized by the liquid film. In this drying process, drying is generally slower ABS internal ink wholesalers, and sometimes need to be accelerated drying hair. Volatile ink, easy to use, fast drying general, it is widely applied. ② UV curable ink (screen printing inks): UV inks can produce photochemical reactions, in a very short period of a few seconds, you can fully cured in plastic printing with more and more. The main component of the ink is photopolymerizable resin, initiator, pigment and additives, will in principle with an organic solvent. ③ oxidative drying inks: Ink containing low molecular weight polymers, oxidized in the air, by heat, light or chemical reactions of reactive species to form a polymer film. This ink after printing to the substrate surface, generally require heating to promote hardening. 4 point increase accuracy screen printing ink toner Note: 1. Printing: screen printing inks in most cases, the British imported small presses, mesh this machine is on a flat printing ink, embossing roll through the circle Indian film to be completed with mobile printing, printing machine is the Rotary way, mesh is the circumference of the rotating rollers. Have a greater difference of these two cell lines the number, angle, etc., which makes the same ink, in both printing there is not a small difference, and sometimes not only the problem of color dark light, and hue, lightness, and this will bring a big difference in the results. Some small factories with squeegee stick on kind, even worse. With plate factory color proofers to anodizing ink wholesalers, the effect will be much better than the import of small presses, and the price is about the same, this proofer printing can be made the same version, and can be designed according to different level, the depth of the printed pattern, which makes printing and printing the same basic way, but an important factor affecting the hue - the plate, but also with the same printing. Version 2. Depth: Different printed materials have different version of the deep, screen printing ink used to print edition pieces deep understanding or estimates also affect the accuracy of toning. Obviously, if the printing ink when used for printing at 45μm deep color, and the client's version is much smaller than 45μm, the printed color is lighter, and vice versa, it will become darker. Some people think that is the standard provided by the user to control the ink transfer printing ink and do not have to consider the deep, in fact, this is the view of a theory is not the case in practice. From the theory that exactly two inks (such as the cup of ink into two), either version of the deep and shallow (other things being equal) it is the same hue. But in the actual palette, it is impossible to deploy draw exactly the same ink, so often there is such a phenomenon; sometimes printed shallow version is closer to the color (up to customer requirements), but if the printed version of the deep colors on a lot worse, so deep for version control is very important, customers edition deep, how deep it must use to print on the color version. Hardware ink manufacturers, ink, printing equipment provided by the constant Yawei Dongguan City Hengli Hang Yawei printing equipment materials firm. Dongguan Heng Li Heng Yawei printing equipment materials firm (dghyw88.1688.com) (www.hengyawei.com) strong, credible, in plate making, printing supplies, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yawei constant printing equipment and you hand into the brilliant, for a better future!