Banknotes : Security marks 1d

After years and years of 'paper' banknotes, a new type of banknotes are gaining influence.
The paper isn't paper anymore, but polymer.
The correct name of the texture is Biaxially-oriented polypropylene (BOPP).
The use of this type of polymer allows other security printing features that were not possible with paper banknotes.
As this first set of articles is only dealing with the papertype, I will come to those other features later.

Polymere banknotes were used for the first time, in Australia in 1988.
The benefit is ofcourse the enhanced durability of the notes, and the difficulties of counterfeiting them.

Some of the countries that have issued polymer banknotes so far :

In Europe : Romania

first set of polymer banknotes Romania

second set of polymer banknotes Romania - after money reform

In Central America : Mexico

In Asia : Thailand

In Asia/Australia : Hong Kong, Australia and Singapore

To be continued...