Luminous anti-forgery ink and its preparation method and use

Abstract

The invention discloses a light anti-falsification printing ink and the preparing method. The printing ink contains a light material which can emit another visible light under the excitation of one visible light, the content of the material accounting for 20-50% of the printing-ink weight. The preparing method; making mixing, pre-separation and rolling on the light material and the printing-ink connecting material to get it. The printing ink can be used to the anti-falsification printing of the carrier like bill and to the carrier needing identification, and the detecting method; use the visible light to excite, and detect another one emitted from the impression.

Description

technical field

[0001] The invention relates to a printing ink, especially a luminous anti-counterfeiting ink, its preparation method and application. Background technique

[0002] Currently used anti-counterfeiting inks include photochromic inks, fluorescent inks, and temperature-changing inks. Photochromic inks and temperature-changing inks have short durability and are mainly limited to screen printing, so the scope of use is limited. Fluorescent inks are generally ultraviolet fluorescent anti-counterfeiting inks, which have been widely used at present, so their anti-counterfeiting effects are affected. Such as a kind of ultraviolet fluorescent anti-counterfeiting ink disclosed in Chinese patent CN104386, which is used for anti-counterfeiting printing of train tickets and ship tickets, but the ultraviolet fluorescent materials used in it are relatively easy to obtain in the market, and it is difficult for high-end anti-counterfeiting. Chinese patent CN1297970 discloses ...

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