| Ricoh is a global leader, a front-runner in fully exploiting the advantages of Chemical Rewritable and Physical Rewritable technologies. Ricoh was also first to develop and commercially deploy reversible thermosensitive recording media. Here is a brief explanation of this remarkable technology.
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Coloring and decoloring characteristics of CR film
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| In chemical rewritable (CR) technology, images are made to chemically appear or disappear through controlled application of heat.
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| Color appears when temperatures just above 180°c are applied to the media followed by rapid cooling. Color disappears when temperatures ranging from 130°c to 150°c are applied to the media. |
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| Color appears when leuco dye and chemical developer are brought together. The color disappears when the developer combines with itself to prevent it from combining with the dye molecules.
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Coloring and decoloring characteristics of PR film
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| In physical rewritable (PR) technology, images are made to physically appear or disappear through the controlled application of heat. |
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Image
appears: >130°c
Image disappears: 100 to 120°c |
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| Gaps produced in the imaging layer deflect light which causes the image to
become visible. When the gaps are eliminated, the image disappears.
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Product Catalog, PDF download
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