Bleed Ink

A security ink containing dyes designed to penetrate the substrate (usually paper) so that any attempt at mechanical erasure will cause visible damage to the document. These inks are very difficult to remove from a document without causing damage. They are commonly used to prevent forgers from manipulating data on a document. The inks are often applied by numbering/letterpress and the ink penetration is often lateral having a visual “halo” around the image after time.

Bleed ink Front side
Reverse side