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Use of inorganic infrared material in producing anti-counterfeiting products

An infrared material and inorganic technology, applied in the direction of fibrous fillers, etc., can solve the problems of weak absorption, etc., and achieve the effect of excellent light resistance, obvious effect, and simple and easy detection process

Inactive Publication Date: 2010-11-10
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The absorption of these pigments to different bands of infrared light is weak, and there is generally no obvious contrast in the intensity of absorption (reflection) of different bands of infrared light within the range of infrared light, so composite inorganic pigments are not used in the production of anti-counterfeiting products, especially It is used for the production of securities and other products with high anti-counterfeiting requirements

Method used

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  • Use of inorganic infrared material in producing anti-counterfeiting products
  • Use of inorganic infrared material in producing anti-counterfeiting products

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Embodiment 3

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Abstract

An inorganic infrared material is provided and the empirical molecular formula of the chemical component is AxByCzDm, wherein x is 1-3, y is 1-5, z is 0-2, m is not less than 3, A is selected from at least one of metal elements as Fe, Co, Ni, Mn, Sn, B is selected from at least one of metal elements as Cr, Cu, W, Sb, Al, Ti, Zn, Li and Sr, C is selected from at least one of metal elements as Ca, Mg, Na, K and Ba, D is selected from at least one of elements as O, F, Cl and S but contains O at least. The inorganic infrared material is to blend raw materials of the selected metal element oxide and / or carbonate proportionally and is calcined under the temperature between 600 and 1300 DEG C for 1-10 h to produce the calcinate which is provided with obvious contrast of infrared adsorption (reflection) of different bands in the range from 720 to 2500 nm. By utilizing the infrared property, the inorganic infrared material of the invention can be applied to produce false proof products, such as infrared false proof ink and the like.

Description

Application of Inorganic Infrared Materials in the Production of Anti-counterfeit Products technical field The invention relates to an inorganic infrared material and a preparation method thereof, in particular to an infrared material with significant differences in the absorption (reflection) intensity of infrared light of different wave bands, and the inorganic infrared material can be used as a functional pigment. Background technique Complex Inorganic Color / Pigments (CICP) are widely used in enamel, glass, ceramics, plastics, paints, advanced inks, advanced art pigments, permanent color codes and far-infrared materials, powder coatings and other industries. Composite inorganic pigments are generally prepared by mixing corresponding metal oxides and / or metal carbonates and calcining at a certain temperature. Sometimes in order to improve certain properties of pigments or reduce costs, it is also necessary to add eutectic agents, diluents, etc. to the calcined raw materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00
Inventor 柯光明刘卫东周乐赵红梅周基炜张莉李欢
Owner CHINA BANKNOTE PRINTING & MINTING