The key answer of exercise 2
The key to exercise solutions in chapter Video 7 - Counterfeit strategy for the textbook Outcomes Advanced - Student's Book with authors Carol Nuttall and Amanda French from National Geographic Learning
Question
Watch the first part of a video about counterfeit prevention in the United States (0.00-2.04). Find out.
Answer
- The notes are printed on special paper – a cotton and linen combination. Red and blue security fibres are woven into the paper. A fluorescent thread printed with microscopic text is also woven in. They use optical variable ink, which changes colour in different lights.
- They bleach lower denomination notes and reprint them with higher values. They use drugstore glitter to mimic the way optical variable ink changes colour in different lights.
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