Counterfeit banknote detection pen: Difference between revisions

Revision as of 21:21, 10 December 2014

Revision as of 21:22, 10 December 2014

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==Background==

Counterfeit banknote detection pens are used to detect [[counterfeit]] [[Swiss franc]], [[euro]] and [[Federal Reserve note|United States banknotes]] amongst others. Typically, genuine banknotes are printed on paper based on cotton fibers, and do not contain the starches that are reactive with iodine. When the pen is used to mark genuine bills, the mark is yellowish or colourless. Counterfeit pens are most effective against notes printed on standard printer or [[photocopier]] paper.<ref>{{cite web|url= http://money.howstuffworks.com/question212.htm |title=How does a counterfeit detector pen work? 123 | work=HowStuffWorks |accessdate= 2008-03-28}}</ref> The chemical properties of the US banknotes prior to 1960 are such that marking pens do not work.<ref>{{cite web

|url= http://www.coinbooks.org/esylum_v10n50a25.html

|title= OLD PAPER MONEY AND COUNTERFEIT-DETECTING PENS

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|date= December 9, 2007

}}</ref>

==Reception==

Pen manufacturers claim such pens will detect a great majority of counterfeit bills, and are an easy counterfeit detection method that does not require expensive gadgets.{{Citation needed|date=May 2013}}