![]() Ink analysis, Disappearing ink, Questioned document, Forensic science, Invisible ink, Erasable ink. Any chemical will do the job if you know how to use it. There is no strict need for any particular chemical to buy. However, you can do it yourself at home with simple items. light available in Video Spectral Comparator -8000. By Shreya Patro JWhen Science and Creativity Come Together, Magic Happens Making invisible ink DIY to write secret messages is something new to try. Visualization of invisible writing is best done by viewing the samples under the spot light and U.V. Chemical examination through iodine fuming, NaOH or KOH are also very effective and reliable method but they are destructive in nature. ![]() ![]() Cabinet are very cost-effective, non destructive and easily available technique to decipher these writings. Examination through Photoshop software and U.V. In this research paper we have explained different techniques to decipher these invisible writings. The baking soda is the base that reacts with grape juice. Once it dries, use a cotton swab or paintbrush in grape juice to paint over the written message. Included : 1 microscope, white powder (calcium carbonate), black powder (iron filings), 1 UV pen, 1 UV lamp, 1 ink-pad, 1 brush, 56 fingerprint transfer. Put a cotton swab or toothpick dipped in the mixture. Temperature dependent erasable ink and pH indicator disappearing ink both are widely used for this purpose. Mix 2 tablespoons of baking soda with an equal amount of water. Invisible ink are becoming a popular tool for committing various economical and financial frauds. ![]() *Corresponding Author: Das Anamika, Email: published on 2 November, 2022. I, Directorate of Forensic Science Services, Ministry of Home Affairs, CGO Complex, Lodhi Road, New Delhi, 110003, India Visualization of thermochromic ink & disappearing ink writings through various techniques on different paper surfacesĪnamika Das 1, *, Kumar Suneet 2, Kumar Sudhir 3, Ahmed Sayeed 4ġResearch Scholar, Division of Forensic Science, School of Basic and Applied Sciences, Galgotias University, Sector 17A, Greater Noida, Uttar Pradesh, 203201, IndiaĢScientific Officer, Forensic Science Laboratory, Mahanagar, Lucknow, Uttar Pradesh, 226006, IndiaģJoint Director, Forensic Science Laboratory, Niwari, Gaziabad, Uttar Pradesh201204, IndiaĤSenior Scientific Officer Gr. International Journal of Medical Toxicology & Legal Medicine ![]()
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