Erasable ink; something old, something new |
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| Authors: | John Welch |
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| Institution: | aForensic Science Service Ltd., London Laboratory, 109 Lambeth Road, London, SE1 7LP, United Kingdom |
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| Abstract: | Writing made with the Frixion ® rollerball pen by Pilot ® can be made colourless using the eraser incorporated in each pen. The heat generated by the friction between eraser and paper decolourises the ink and other sources of heat have a similar effect. The original colour of the ink is restored by cooling it to a temperature below 20 °C. |
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| Keywords: | Erasable Ink Ball-pen Heat sensitive |
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