Topic: [Serious] How long does the paper in a casascius stay legible? - page 2. (Read 1067 times)
January 03, 2017, 12:51:59 PM
I did not see anyone here mention receipt paper, because I have had several receipts' ink fade away to nothing in less than 2 years. I dunno what ink is used, but the paper is pretty thin.
January 03, 2017, 12:49:31 PM
What type of printing gives the longest shelf-life and under what conditions can this be achieved??
Engraving directly onto metal seems to work pretty good under any condition.
You just have to make sure that the engraved keys are not visible under X-Ray or some other technologie I didn't think of though.
I collected paper money for many years including Confederate notes. Confederate notes were made on very cheap thin paper and ink was of lesser quality than today. The notes are still around and legible after 150 years. Temperature ( extreme heat or direct sun light for weeks on end ) would cause some fading but most retain ink even under tough conditions. Ink on paper can and does last for hundreds of years.
Likewise. I have Deutsche Marks from the very early 1900's that have not been protected in any way. The paper is still in good shape and ink 100% legible.
IF you're looking them to store for so long, go with Keyois Capsules or Hardware secure wallets. Doesn't matter how good paper is , it can always get wet or burn
Those look great, I might get a couple of them just for the art of it. I keep currencies/valuables in a fireproof safe plus have them insured so kind of takes the worries out of it. The only real worry I have is blockchain broken by hack
IF you're looking them to store for so long, go with Keyois Capsules or Hardware secure wallets. Doesn't matter how good paper is , it can always get wet or burn
What type of printing gives the longest shelf-life and under what conditions can this be achieved??
Engraving directly onto metal seems to work pretty good under any condition.
I collected paper money for many years including Confederate notes. Confederate notes were made on very cheap thin paper and ink was of lesser quality than today. The notes are still around and legible after 150 years. Temperature ( extreme heat or direct sun light for weeks on end ) would cause some fading but most retain ink even under tough conditions. Ink on paper can and does last for hundreds of years.
I basically just want to know if I can store them until I can give them to my grandchildren, so 50-100 years.
@AT101ET & @wttbs maybe the hologram seal helps? I don't think any air can reach the paper.
@AT101ET & @wttbs maybe the hologram seal helps? I don't think any air can reach the paper.
I don't know, depends on the quality of the paper and ink and the enviroment the coin is in.
Best condition for a coin and the paper under hologram should be in vacuum I guess. For really long term holding/saving you best should vacuum seal the coin in a plastic bag.
Best condition for a coin and the paper under hologram should be in vacuum I guess. For really long term holding/saving you best should vacuum seal the coin in a plastic bag.
I've asked this before on the forum but never really got any answers.
I have done my own research however, and there are quite a few factors involved.
•Firstly, the rate of deterioration depends on the ink and paper used.
Using ink to print the keys would detiriorate faster than if the keys were printed using a laser printer. Lasers are fairly accurate and are less prone to smudging if they get wet. (The paper itself could break down if the water gets absorbed and would damage the keys even if they were printed user laser ink jets).
•Secondly, normal paper erodes faster than acid free paper. I can't remember the figures offhand but normal paper erodes quite slowly (20-30 years) whereas acid-free paper can last 100+. I can't remember the figures offhand and the sources I found but I'll look them up when I have time.
•Paper thickness - this is another factor to take into consideration. The kind of gsm paper used will affect the rate of deterioration.
There were quite a few more points that I'd researched but can't remember them for the time being. If I do I'll be sure to add them to the list.
I have done my own research however, and there are quite a few factors involved.
•Firstly, the rate of deterioration depends on the ink and paper used.
Using ink to print the keys would detiriorate faster than if the keys were printed using a laser printer. Lasers are fairly accurate and are less prone to smudging if they get wet. (The paper itself could break down if the water gets absorbed and would damage the keys even if they were printed user laser ink jets).
•Secondly, normal paper erodes faster than acid free paper. I can't remember the figures offhand but normal paper erodes quite slowly (20-30 years) whereas acid-free paper can last 100+. I can't remember the figures offhand and the sources I found but I'll look them up when I have time.
•Paper thickness - this is another factor to take into consideration. The kind of gsm paper used will affect the rate of deterioration.
There were quite a few more points that I'd researched but can't remember them for the time being. If I do I'll be sure to add them to the list.
I know that most laser printed stuff fades away quite fast. I assume Mike used an ink printer. But even then, it's not for an eternity.
Does anyone have anymore information on this one?
Regards
Does anyone have anymore information on this one?
Regards
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