Ink dating

The detection of these tags is complicated and requires expensive and rare scientific equipment.The primary method of detection of these tags is called XREOF (X-ray excited optical fluorescence).The ink dating static approach is typically more useful as the difference between the date on the document and the present time increases.Several different tests exist in this form of ink dating.

This was a single tag was could be extracted with the ink, separated and analyzed with ultra-violet light.This ink dating method primarily involves microscopic examinations and can also incorporate some basic chemical solubility testing.Some examinations can be performed on fountain pens to determine type of nib, type of ink and the first date of introduction of each of these.Color slide film has been shown to work well, especially since a print can be made directly from a slide or used in a projector for presentation.Ink dating 1970’s and 1980’s: In the 1970’s and 1980’s, several ink manufactures used rare earth metals as a method to tag inks as to their date of production.

With inks available in common production this is much easier than with inks that are rare.