Bleaching is preferred by counterfeiters over mere printing of bills with values of higher denomination as the bleached paper will pass the counterfeit pen test.
Reasons to prefer bleaching:
- Counterfeiters use bleaching to create the fake bills. They bleach the original bills and turn them into bills of another denomination.
- This process preserves the security features of genuine currency to include red and blue synthetic fibers and watermarks.
Therefore, bleaching is used over printing to avoid technical tests.
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