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Colour-changing afterglow protects banknotes

A team of chemists in China has discovered a single compound that has a colour-modified afterglow. According to Chemistry World, this technique could protect banknotes...

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A vertical strip (made of a synthetic, metallic or other material) added to the substrate during paper production.

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Big security features for new Belarusian notes

The National Bank of Belarus has confirmed its plans to issue the renewed Br20 and Br50 banknotes in 2020. Banknotestreet reports that the changes in...

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