Forensics age dating ink

During the natural ageing process of each sample, which had a known age, the research team analysed the evolution in the various volatile components.Specifically, they focussed on the solvent known as 2-phenoxyethanol (PE), present in 80% of the inks in ballpoint pens of this type.To do this, they used BIC® ballpoint pens, one of the most common makes and, therefore, the most widely used in documents subjected to legal examination.Each document was produced at different moments using a different ink stroke pressure, factors that may alter the results and lead to dating errors.So Datink offers a more accurate, less damaging, less intrusive and less harmful result. The excavation work has demonstrated that the settlement, which is now home to the small Kurdish ...Nevertheless, this methodology is a pilot experience that requires further in-depth research when it comes to evaluating the limits of the applicability of the various inks and makes of ballpoint pens, thus reducing its potential limitations. Historical research using forensic fingerprinting techniques on the wax seals of thousands of medieval documents will reveal new insights into 12th to 14th century British society, help determine how ...

With advances in technology, many documents that could not be analyzed five years ago are now possible sources of important information, such as the answers to questions relating to the method and time period of preparation. Lyter began his career as a forensic chemist for the Bureau of Alcohol, Tobacco and Firearms, National Laboratory Center in Rockville, Maryland. If an entry is dated in 1995, but the ink was not available until 2005 then the document could not have been created in 1995. Inks contain chemical solvents that evaporate and generally go through a drying process that can last up to 2 years. In other words, when applying this analysis procedure, the team can indicate whether the document was written 1,500 days previously (just over four years) with a margin of 300 days either way.Until now, the passing of time was detected only in a very general way, in other words, it was possible to determine whether the document was young (whether it was less than 90 days old) or old (more than 2 years).

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