No specific data bank regarding the chemical compositions and dye components for the various ink types is available.
Moreover, there are many factors affecting the rate of aging, and almost all techniques used to determine age are destructive in nature.
Different techniques have been used, based on the study of chemical and physical properties of various types of inks. Each of these two aging processes causes measurable changes in several aging properties. More than one method is often used to measure the changes of a given property; each method is associated with an aging parameter. Hyperspectral Imaging: Potential in Non-destructive analysis of Palimpsests. This new approach can determine the relative age of the ink, in a nondestructive manner, from any two writings created at different periods of time with the same class of ink. One of the challenges faced by the forensic document examiner is determining the age of a document/ink in order to ascertain whether entries or writings – such as those in logbooks, registers, OMR sheets, deeds, cheques, drafts, and other important documents – were executed in the same period or in different periods of time. “You’re gonna be the best mother ever.” But Donna was unconvinced, and she celebrated when her stick reveals only one line. As far as we can tell, Bae hasn’t commented on the pregnancy test on Twitter, but she seems to see the humor in the situation nonetheless — retweeting a tweet reading, “Young Bae went looking for a mom and became a mom! By Nato Locktongbam Central Forensic Science Laboratory, Directorate of Forensic Science Services, Ministry of Home Affairs, Government of India, Kolkata Dr. In order to address these challenges, an attempt was made to study the rate of diffusion of inks at different time intervals using hyperspectral imaging. Khound Directorate of Forensic Science, Government of Assam, Guwahati Priyankar Ghosh Central Forensic Science Laboratory, Directorate of Forensic Science Services, Ministry of Home Affairs, Government of India, Kolkata Abstract The challenges faced by the forensic document examiner are to know whether entries/writings with ink made on certain documents – such as logbooks, registers, OMR sheets, cheques, drafts, promising letter/notes, deeds, wills, prescription notes, and other important documents – are executed during the same period of time, or in different periods of time, and to know whether entries/writings were executed by the same ink. Now, the science in this branch has prospered scientific method or expert to find out the age of the ink in the disputed document. Now, the science in this branch has prospered clear that it is not impossible to discover age of the ink. chemical tests were in application to find out age of ink. Coming to the aspect of age of ink and writings can be determined and if so done expert for the purpose of finding out the age of the ink used for the writings. examination by an expert to find out the age of the ink and the writings, the petitioner would refer cheque to Forensic Expert to ascertain age of ink etc. that the scientific methods are available to ascertain age of ink etc.". (3) Diffusion pictures.- Inks often contain sulphate or chloride ions from the acids clear that it is not impossible to discover age of the ink. chemical tests were in application to find out age of ink. chemical tests were in application to find out age of ink.