Indian scientists from NPL develop ink to spot fake passports, govt docs

New Delhi: The Minister of Science and Technology, Health and Family Welfare, and Earth Sciences, Harsh Vardhan, stated in the Rajya Sabha today that the National Physical Laboratory (NPL), a part of the Council of Scientific and Industrial Research (CSIR) has developed a bi-luminescent security ink which glows in red and green colours when illuminated by two different excitation sources at 254 nanometers (nm) and 365 nm, respectively.

The ink was prepared in a batch of 1kg and given to Bank Note Press (BNP), Dewas, Madhya Pradesh, a unit of Security Printing Minting Corporation of India Ltd (SPMCIL), New Delhi. The ink is found comparable to the standards that are in use. The formulation can be used to check the authenticity of passports, Government documents, tamper-evident labels, and identity cards.

This was stated by Minister of Science and Technology, Health and Family Welfare, and Earth Sciences, Harsh Vardhan in a written reply to a question in the Rajya Sabha today.


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The ID Staff

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