Content deleted Content added
m Dating maintenance tags: {{Citation needed}} |
|||
Line 4:
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 react 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 |accessdate= 2008-03-28 |publisher= [[HowStuffWorks]]}}</ref>
==
Pen manufacturers claim such pens will detect a great majority of counterfeit bills, {{Citation needed|date=May 2013}} but critics suggest the effectiveness is much lower. Critics claim that professional counterfeiters use starch-free paper, making the pen unable to detect the majority of counterfeit money in circulation.<ref>{{cite web
|url= http://www.sciam.com/article.cfm?id=0001547E-EECE-1FD3-A7EA83414B7F012C
| |||