Toshiba to release erasable printing ink for reuse of paper
TOKYO - Toshiba Corp said Tuesday it will put on the domestic market a decolorable printing ink that is rendered invisible by heat treatment. The ink allows "companies to reuse paper, to cut office waste and to reduce business costs," Toshiba said in a press release.
(Kyodo News)
Interesting approach. A lot of companies are already recycling printer paper by turning it over and printing on the backside. On the face of it, this sounds like a reasonable solution in much the same way that we used to collect office paper and make note pads from it.
It does create additional problems though. I've often thought that a document was printed double-sided only to realize that the printing on the back side of the pages was from some other document that had been recycled. There are also significant issues with paper recycled in this fashion causing paper jams in the copy machine.
Toshiba's choice of the term 'decolorable' is intriquing. It implies that the ink or toner actually remains in place on the paper, you just can't see it. Application of heat apparently causes the ink pigments to fade to the point that they are invisible to the human eye. I suppose, if someone wanted to, you could recover the 'invisible' information using a UV light source or some other optical or chemical approach. A wanna-be spy could print out confidential documents, then decolor them, and walk out with apparently blank paper, then recover the information later. So much for controlling confidential data and trade secrets...
From a pure economic perspective, if you have to buy additional equipment to heat treat the paper, and you use more of the employee's time to manage the recycling process, then how long to you have to wait to reach the break even point?
Ultimately the solution is to eliminate the use of paper all together. That takes time, much longer than anyone ever expected, primarily because people don't like to change deeply engrained habits. Yet, it is happening. Surface mail statistics are dropping, the volume of printed catalogs is dropping, photo developing and printing shops are finding that their business is evaporating.
Solutions like decolorable ink seem to address a problem in much the same way that the photo shops have decreased the time it takes them to get your photos in your hand. It used to take days, then we saw 1 hour photo processing in the malls. Now you can have it done in a half an hour. Unfortunately, the 30 minute improvement isn't going to stop people from moving away from film to digital imaging. Decolorable ink appears to be a stop-gap solution on the road to the almost total elimination of paper as we know it.
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