Abstract
In the recent years, there are number of problems related to counterfeit in drug industry, banking industry, insurance sector and range of products including fake university degrees, documents etc. There are number of products, which can be easily duplicated by simple processes and the product seems original that nobody doubts. Even the counterfeit of currency is also a main problem in world’s economy. So there are number of anti-counterfeiting technologies including electronic combat mechanism are available in the market to prevent these antisocial activities. Printing ink is very useful as per the security purpose to write down confidential documents or sign. Fluorescent material-based inks can be difficult to counterfeit and relatively easier to handle. This ink has diverse properties in different materials so that it can be a very good option to frame an anticounterfeiting technique. This article explains about the brief overview of anticounterfeiting technology and different methods of it. It also explains the applications of fluorescent based security ink to prevent the counterfeiting of the products and documents. This can be a reliable source for the security purpose to make the confidential documents secure. The review article also describes the concept of luminescence and its applicability for further development in various sectors.
Highlights
It was reported that CD-fluorescent inks have identical steady state emission properties, but they have distinctive and well separated emission lifetime which allows the authentication of security tags using exclusively fluorescent lifetime imaging
Suresh et al synthesised a novel and highly effective red emitting phosphor Pr3+ doped (1–11 mol %) lanthanum oxyfluoride (LaOF) nanoparticles as part of solid state white light emitting diodes by a low temperature solution combustion method using Centella asiatica leaf extract as a reducing agent and identified that it could be used for visualization of latent fingerprints and anticounterfeiting applications [45]
Recent reports says that Carbon dots are the most promising luminescent materials for anticounterfeiting technology because of their high fluorescent quantum yield and nontoxicity
Summary
Counterfeiting is as old as the human desire to create objects of value in an alternative cheaper method. As described in counterfeiting is of concern to governments because of (i) the negative impact that they can have on innovation, (ii) the threat they pose to the welfare and health of the consumers and (iii) the substantial resources that they channel to criminal networks, organised crime and other groups that disrupt and corrupt society. They are of concern to business because of the impact that they have on (i) sales and licensing, (ii) brand value and firm reputation, and (iii) the ability of firms to benefit from the breakthroughs they make in developing new products. There are various categories of counterfeit goods in different domains [3,8,9,10]
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