The recent Indian demonetization emerged as a shock and surprise not just to the Indians, but to many across the globe. The news of India scrapping their 500 and 1000 rupees notes has gone viral on Facebook, Twitter and other social networking platforms. In the event of such a historic move in India, at Worldofchemical.com, we would like to bring in few insights on the significance of chemicals in currency notes manufacturing and printing.
What are currency notes made of?
A single currency note undergoes exchange between millions of hands before it’s completely worn out. Hence, the use of a regular paper is not a good idea for use in currency notes. Various countries of the world have made a variation in the composition of their currency notes to improve its strength and durability. The pulp of Indian currency contains cotton and balsam, whereas the US dollars are made of cotton and linen; Australia on the other hand, has seen a shift to an innovative polymer (or plastics).
Gelatin plays an important role in paper manufacturing
A significant step in paper manufacturing is to infuse the currency pulp with gelatin or poly vinyl alcohol. This enhances the strength of the notes, adding to its increased life. The manufacturers also consider adding natural and synthetic fibres, this gives the notes a great texture and also improves their mechanical strength and flexibility.
Security threads and watermarks
All the countries of the world have security features inscribed on their currency notes. These features include the watermarks and security threads, which are visible when held against the light. These security features become more prominent and glow when held against a UV light source. Whichever nation you belong to, whatever currency you may use, chemistry has its role to play.
High-security currency printing
Though, the currency of different countries are different, the basic idea and printing process remains the same. The process involves three major steps - the initial designing of the notes, manufacturing and printing. The process of printing incorporates hologram, watermarks, security threads, serial numbers, anti-copy marks, magnetic ink and microprinting. All countries use specialised, high-security inks for printing their currency notes. The names of the inks used are usually not disclosed for security reasons.
Whether it’s printing of currency notes or engraving on currency coins, chemistry has a significant role to play. In the coming years, only chemistry has answers for countries who are looking for greater innovations in their currency notes.
(C) Worldofchemicals.com Article
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