The knowledge and skills of various ink ink features (3) Pigment expression intaglio gravure inks based UV inks to ink surface of the ink wholesaler, you can not use transparent paint. Apply to securities more intaglio printing. Ink knowledge and skills of various characteristics of ink (3) intaglio ink so the higher performance requirements of the pigment, such as light, water, heat, oil and so on. To prevent forgery, but also often add some special additives in the ink. Ink | constant Yawei printing equipment | UV ink on the surface wholesalers by the Dongguan City Hengli Hang Yawei printing equipment materials firm. Ink | constant Yawei printing equipment | UV ink on the surface wholesalers Dongguan City Hengli Hang Yawei printing equipment materials firm (dghyw88.1688.com) (www.hengyawei.com) this year introduced a new upgrade, the above picture is for reference Please call the telephone or pictures on this page, for the latest information, contact: Mr. Chang.