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I know when I first started in the paper trade over 30 years ago that Du Pont in America was experimenting with paper money.
For one thing it lasts longer and its harder to forge. But at the time the US was introducing Jungle tribes to money and of course the first thing they did was eat it.
Plastic money can be cleaned, paper money is riddled with germs.
They will probably use a material called TYVEK its made of spunbonded Polyethelene, made by Du Pont and you can't tear it.
I started out with nothing and I've still got most of it left.
ooh I love these posts, as a young buck I had a year working a paper mill in Oxford who made the glossy paper for Cadburys, super calender from memory, I had to sign the official secrets act as the proccess was a state secret.
In Australia we have had plastic bank notes since feb 1966, they are polymer sort of plastic, they are almost impossible to tear, if you scrunch them up they go back into shape, there is a clear window with a white picture on it which you can't rub off, they have a seven point star printed on both sides when you hold it up to the light the two stars should line up exactly, also there is a shadow image under the print, this done by background printing on the polymer substrate, the printing is called INTAGLIO it is raised dark printing when you run your fingers over it you can feel the ink, there are multi coloured and multi directional line patterns on both sides of the note, and there is tiny writing called micro print which most people can't read without a magnifing glass and last but not least the serial number becomes fluorescent under ultra violet light and on some notes the values become visible in a particular spot.
They are almost impossible to counterfeit, Australia sells the technolgy to other world banks, they really are very good, hope you find this intresting.
I found this about Supercalender ....http://en.wikipedia.org/wiki/Calender so your memory serves you well. The name refers to a process for producing dense smooth paper.
I am intrigued by your bank notes.
I suggest you send a large (heavy) selection over to me so I can (maybe) distribute them amongst the members in order that we can fully appreciate the material from which they are made.
Large values would be preferred as there will be more print to examine.
Before plastic, as we now know it, we had Paxolin and Bakelite. Great for electrical circuits but not so much for currency.
i don't remember much about the proccess as I was about 18 at the time, I do however remember I worked with an old guy (probably 30 years old) and in the area the machine was located worked about 60 women mixed ages, they used to taunt me rotten, I did not think women would speak to a male like that - wish I knew then what I know now LOL
"wish I knew then what I know now "
I've been saying that since I was 21 and it's still true.
At what age does opportunity catch up with experience?
Quote: Slow Jo wrote in post #3
What did we use before plastic, will it ever run out ,personally I think its a good idea. If we can have aluminium jaguars why not plastic money.
The only way is up