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Luminous anti-forgery ink and its preparation method and use

An anti-counterfeiting ink, ink technology, applied in the direction of ink, application, household appliances, etc., to achieve the effect of easy identification, wide application range, and improved anti-counterfeiting level

Inactive Publication Date: 2005-04-20
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no anti-counterfeiting ink excited by visible light and emitting visible light

Method used

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  • Luminous anti-forgery ink and its preparation method and use
  • Luminous anti-forgery ink and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Preparation of luminescent anti-counterfeiting ink

[0030] Weigh the molecular formula as 29.5Al(NH 4 ) 3 f 6 7.5CaF 2 7.5MgF 2 ·10BaF 2 43.5PbF 2 0.5Ho 2 o 3 50 grams of luminescent material, mixed with 150 grams of ink binder (80 grams of phenolic resin oil, 40 grams of alkyd resin oil, 30 grams of bright resin oil), appropriate amount of additives (8 grams of varnish, 0.5 grams of cobalt naphthalate) Stir and roll on a three-roll ink pad to prepare offset printing ink. The ink or its imprint emits blue-green light under the excitation of 632nm red light.

Embodiment 2

[0031] Example 2 Preparation of luminescent anti-counterfeiting ink

[0032] Weigh the molecular formula as 29.5Al(NH 4 ) 3 f 6 7.5CaF 2 7.5MgF 2 ·10BaF 2 43.5PbF 2 0.5Ho 2 o 3 80 grams of luminescent material, mixed with 130 grams of ink binder (80 grams of phenolic resin oil, 40 grams of alkyd resin oil, 30 grams of bright resin oil), appropriate amount of additives (8 grams of varnish, 0.5 grams of cobalt naphthalate) Stir and roll on a three-roll ink pad to prepare number ink. The ink or its imprint emits blue-green light under the excitation of 632nm red light.

Embodiment 3

[0033] Example 3 Preparation of luminous anti-counterfeiting ink

[0034] Weigh 50TeO 2 19.7PbF 2 10AlF 3 · i0BaF 2 ·NaF·0.3Tm 2 o 3 50 grams, mixed with 50 grams of ink binder and an appropriate amount of additives, stirred, and rolled on a three-roll ink machine to prepare screen printing ink. The ink or its imprint emits blue light when excited by red light at 650nm.

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/50
Inventor 刘卫东刘东唐士立杨志洪张昆峻
Owner CHINA BANKNOTE PRINTING & MINTING
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