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Because of the white body color of
these
pigments, barcode or other prints containing them are almost invisible to the naked eye.
However, observing an impregnated print through a camera equipped with appropriate filters reveals a greatly enhanced contrast of the print. |
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| The invisible barcodes could be scanned having been overprinted with process colors. Also, modified barcode scanners easily read the barcodes as well as the regular black ones. |
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