Security ink introduction

Ink is the main material for printing. Printing is always mentioned. Ink is used. In general, printing ink is a very common material. However, in recent years, with the development of security printing, special inks for special printing have gradually become the world's Learn and be familiar with. Types of anti-counterfeit printing inks Anti-counterfeiting printing inks are an important part of anti-counterfeiting technology. Anti-counterfeiting inks are inks with anti-counterfeiting capabilities. The inks are composed of colorants, binders, and ink auxiliaries, ie, special additives are added to the ink binders. The performance of the anti-counterfeiting material and processed by a special process of special printing ink. Its anti-counterfeiting ability is based on the use of colorants and linking materials that have special functions in ink to prevent falsification. Today, in many fields of security printing, the use of anti-counterfeiting printing inks is very widespread. For example, anti-counterfeiting printing inks are used in various security printings such as documents, documents, trademarks, and signs. This is mainly due to the fact that anti-counterfeiting printing inks have the features of easy implementation of anti-counterfeiting technology, low cost, better concealment, and vivid colors. At present, there are dozens of inks used for security printing developed at home and abroad, which can be divided into letterpress printing inks, gravure printing inks, stencil printing inks, lithographic printing (offset printing) inks, and waterborne flexo printing inks. Different things can be divided into paper ink, printing ink, news ink, plastic ink and so on. In addition, security ink can be divided into seven major categories according to its anti-counterfeiting function. The first category, UV-excited fluorescent inks; The second category, sunlight-induced color-changing inks; The third category, thermal anti-counterfeiting inks (thermochromic inks); The fourth category, chemical reaction color-changing inks; The fifth category, intelligent machine reading ( Machine experts identify) security ink; the sixth category, multi-function or integrated security ink (laser hologram plus fluorescent security ink); the seventh category, other special inks, such as OVI light variable security ink.

Reprinted from "Jiangdong Science and Technology Network"