The Counterfeiting Threat- Plastjoo

When the new decimal currency banknotes were introduced in 1966, they were thought to contain the most sophisticated security features available. However, a major counterfeiting threat emerged in December that year when forged $10 banknotes were discovered

Forged $10 banknotes were used to make purchases at a string of small retail outlets. It was known as the 'Times Bakery' counterfeit because the horizontal lines on the Times Bakery building (on the back of the note) were not flush with the vertical edge of the building


Image showing the back of a 'Times Bakery' counterfeit of $10 note 
Image showing the back of a 'Times Bakery' counterfeit of $10 note


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Research was propelled through the 1970s and 1980s by the increasing availability to the public of higher-quality reprographic technology

Research to enhance the security of the note issue focused initially on developing a hologram-like Diffractive Optically Variable Device (DOVD). This was found to have better optical effects when applied to a smooth surface. This led to a decision to develop a polymer substrate with DOVD as the principal security feature. Polymer banknotes are banknotes made from a polymer such as biaxially oriented polypropylene (BOPP). Such notes incorporate many security features not available in paper banknotes, including the use of metameric inks

The First Polymer Note 
In 1985, the RBA decided to trial the new technology in a Commemorative $10 note. Modern polymer banknotes were first developed by the Reserve Bank of Australia (RBA), Commonwealth Scientific and Industrial Research Organisation (CSIRO) and The University of Melbourne. They were first issued as currency in Australia during 1988 (coinciding with Australia's bicentennial year). In 1996 Australia switched completely to polymer banknotes. Other countries that have switched completely to polymer banknotes include: Brunei, Canada, New Zealand, Papua New Guinea, Romania and Vietnam


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:The key properties of polymer notes are
They do not absorb water or other liquids-
The structure of the notes does not easily break down and the notes are di-cult to tear-
They perform well in a full range of climatic conditions-
Polymer banknotes last significantly longer than paper notes (about 2.5 times more than paper notes-
reduced cost of production and replacement-

    examples of the first polymer banknotes   
      examples of the first polymer banknotes   

Images showing some examples of the first polymer banknotes

 Editor: Nasim Rashidi Nezhad


Plastjoo is an online store in the field of plastic and polymer in Iran. You can call 9821-91011945 to purchase, order or for more information