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The MagDot, often used in conjunction with a bar code, hologram or other overt security measure, is typically printed as a 3 mm square dot, but can range from 1 mm square up to a quarter-inch in size. It can be hidden behind a hologram, logo or foil, remaining completely disguised.
The MagDot is printed before final varnishing and must be used on a flat surface—documents, envelopes, rigid cartons—with which the reader can contact. Paper and most plastics will work, Johnston said. The dots are readable under varnishes less than 0.001˝, but can be made bigger for better readability under thicker coatings.
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- People:
- Doug Johnston
- Places:
- London
- Spokane, Wash.
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