Vanishing Toner Provides Reusable Paper – Berto disappears

Vanishing Toner Provides Reusable Paper – Berto disappears into thin air

It’s not just a cheap magician’s trick. There are now some commercially available inks and toners that can either fade after a year or two to nothing or be scrubbed off a page allowing consumers to reuse their paper.

Disappearing ink, the party trick kind, is a water-based acid-base indicator (pH indicator) that changes from a colored to a colorless solution upon exposure to air. Read this blog to find out how to make it.

Carl Yee, a former engineer, spent time in his San Diego garage formulating what he described as a purposefully “lousy ink” —one that slowly fades after being printed. The gradual disappearance of the ink allows the paper to be used again and again.

Despite all the rumors to the contrary, paper consumption in the United States for the last 20 years has increased from 92 million tons to 208 million — a growth of 126%. Maybe we should be reusing more of it.

Berto #53: July 5, 2017: Vanishing Toner Provides Reusable Paper – Berto disappears into thin air

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Last month’s Berto cartoon: Rules Changed by Supreme Court in the USA – Berto celebrates

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