Review: Techniques for the Characterization of Inks

Writing comprises writing tools to make documentation. With the advancement of technology, writing instruments have been developed in a phase wise manner and brought changes in ink chemistry. Recipes for formulation of inks have been modified over the years. Ink designed for use in different writing instruments or printing media have quite dissimilar components. There are occasions when documents used in criminal activities or in the course of civilization either alludes or created specifically for the purpose of deception. These kinds of many cases have been reported in the world of document examination. To solve this problem it is necessary to utilize some techniques chartering the document creation and history. The challenge faced by document examiners in such cases is to search for any clues that suggest that a particular ink entry was placed on the document some time other than indicated. Document examiners have invented methods for the scientific examination and identification of writing inks. Lawyers in the private sector and government agencies at all levels are using the examination of inks as a means of establishing the authenticity or fraudulent nature of questioned documents. The present review summarizes most of the available reports about the development of ink examination and identification techniques.