Banknote

Impression

In a first stage a machine offset prints simultaneously, on the two faces of the sheets of paper, various interlacings of lines with a precision such as the agreement between the lines of the recto and the produced back of the effects in transparency. In a second phase, impression of the chameleon number (the value of the ticket is printed with a Encre which changes color when it receives the light under a different angle) and magic number (he appears only under one precise angle of light), both applied by Sérigraphie. Then, a machine affixes a “kinégramme” - a technique which gives to the figures an impression of displacement - as well as the scintillating figures. Then the turn comes from the impression in copper-plate engraving which will cause to give to the impression this so identifiable relief on the tickets. Then attribution with each ticket of a different number, by traditional impression and, finally, varnishing to avoid the stain and to increase the lifespan of the ticket.

History

Currency-paper was undoubtedly introduced by the traders in Chinese at the beginning of the 10th century who regulated the large transactions with promissory notes in order to avoid the transport of the coins. The Chinese administration adopts officially banknotes in 1024. The metal coins are symbolically represented on the tickets of the Song S.

The first Western mention of the banknote shape is made by Marco Polo (beginning of the 14th century). When that he discovers them in China, he writes: “Grant Kaan makes take for monnoie escorces trees which seem Chartres” ( Devisement of the world , chapter XCVI).

The first banknotes appeared in Europe about the middle of the 18th century, in particular with the Banque of Law, but they were preceded by proto-tickets (Bill of exchange, milked endorsable etc) quite front. The first bank which issued tickets was, in 1658, Riksbank of Stockholm. The first tickets of the Banque de France appeared in 1803.

Medical questions

One wondered a long time whether the coins or the banknotes which are the objects which pass with hands in hands and circulate sometimes quickly in the whole world could convey pathogenic Micro-organisme S (mushrooms, bacteria and virus).

The employees the food commercial which touch the food and which boxes the money of the customers are they agents of transmission of epidemics? Whereas the threat of a pandemia grippale remains of topicality, a study in 2007 confirmed that grippaux viruses can survive up to five days on banknotes (tickets of 50 Swiss francs of the Swiss national Banque). They survive better when the viral concentration is raised and still better if they are protected in Mucus. For this study, nasal secretions of 14 patients of the influenza were used. In half of the cases, the virus at survived 24 hours and in 5 cases, it was still present after 48 hours. The alternative H5N1 of the avian flu, too dangerous, was not used for this test. The banknotes would be thus potential vectors of pandemias grippales, but in normal weather, the circulation of the currency could contribute to maintain human immunity vis-a-vis the benign microbes most current.

See too

Internal bonds

External bond

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