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True watermark
Chemical alternation indicators
Invisible fibers
Two visible fibers
Printloc toner anchorage
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Watermark is in paper, cannot be copied
Green and red fibers embedded in paper
Large fibers are visible only under UV (black) light
Color reaction triggered by the use of bleach, oxidizers, solvents, acid or alkali materials
Prevents toner removal
Available in SG CB, SG Bond, and SG Bond Printloc
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