Black dating ink well melody hobson dating
The first ink dating method is the static approach, which determines when the ink being examined was manufactured.The second ink dating method is the dynamic approach, this method is to determine when the writing occurred, or in simple terms, how long the ink has been on the paper.
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.
These ink dating methods include the comparison of the examined ink to a known library of standards, commonly called the library approach, the detection of chemical date tags placed in the ink purposefully by the manufacturer, commonly called the date tag method, and also the determination of the type of ink writing instrument used.
The determination of the type of writing instrument is probably the oldest method of ink dating.
The next step would be the most basic ink dating form of thin layer chromatography (TLC) testing to determine if two or more inks are the same or different formulations.
In order to do this the following steps are taken: Ink dating – chemical tag: The detection of a chemical date tag can disclose the exact year that the ink being examined was manufactured.
Manufacturers used two types of chemical date tags in their ink formulations. It should be noted that some ink manufacturers never placed any date tags in their inks.