Ink prints are very popular with consumers, but of these inks production, storage and use present a series of puzzles
But to get the real reflect chrome effect,It is really necessary for printers to test to determine how much pigment you want.
1. the ratio of copper powder in the ink is typically 10% -15% of the proportion ratio, the proportion of resin is 55%, the proportion of the diluent is 30%.
2.the ratio of aluminum silver in the ink is typically 10% -20% of the proportion ratio, the proportion of resin is 50%, the proportion of the diluent is 30%.
Another reason to ensure color consistency is difficult to arrange the pigment, especially stratified gold and silver powder ink. Metal flakes floating in the ink film surface, forms a lot of free open areas. (More coarse particle size of the color, the greater the desert to idle).
When copper powder aluminum silver inks is printed, printing materials selection is very hub.Because a lot of pores on the surface, with a penetration of exudative printing materials will absorb liquid transparent resin.Especially when the ink viscosity is low, the resin is absorbed, the pigment particles will remain on the surface of substrates. Less resin component, will result in rendering gray silver powder, and the gold powder is rendered brown.For screen printing, the pigment particle size is usually between 3 ~ 15μm.So if you insist on using aluminum manufacturing silver ink, then we must ensure that the aluminum powder is stored in a dry place with right temperature.At different premises, metallic pigment particles and binders after mixing, the shelf life of the ink is different, generally between a few hours to several months. Screen printing ink manufacturers are still ongoing efforts to refine gold and silver powder ink, so they use it more easily, producing stunning results.Ink pigments act as binders and adhesives to protect the ink dried film.
Silver ink is made of aluminum powder dispersed in a solvent and then braced oil binders made of.At this time the pigment particles will settle to the bottom of the ink film, greatly improving their adhesion. But because the particles at the bottom isn’t line up regularly, the light needs to pass through the link material to enter the bottom surface of the particles to be able to be reflected at the expense of luster.Under comparison,in the presence of aluminum paste is relatively safe.All aluminum powder producers supply various forms of solvent-based, water-based and UVdrying inks compatible pasty pigment. The fact is that the fewer the number of paint, the better adhesion, , the more the average ink film, the more average means more smooth surface, the reflection function better, of course, the better the gloss.If you have no other choice but to use absorbent substrates, it is best to print one ink (like traditional transparent varnish), printing materials to seal the pores of the surface, and its gold and silver powder printing ink.Gold ink use in a certain percentage of copper zinc. Depending on the different ratio, gold redness or fluorescence can also be made of a transparent yellow ink and aluminum pigment. It is better to use gold ink gloss copper system, but in a long time, keeping the gloss is not bad, and chemical resistance and toxicity are quite good.Fine metal pigment particles at the time of transfer is more suitable, unlike those oversized particles required by increasing the mesh screen,fine pigment particles are at the expense of gloss.This is the reason that it is generally not recommended to use traditional printing spectrophotometer to measure gold and silver powder print.In most cases, the metal powder is sold as a screen printing ink sector, in the use of added binders.