IRabA

Mouseover image to reveal differences in infrared absorption

TECHNOLOGY FOR QUESTIONED DOCUMENT EXAMINATION

 

Infrared Absorption / Dropout

 

When illuminated with infrared of a wavlength between 700-1000nm some inks become transparent, dependent on their chemical composition, effectively to disappear .

The effect will often reveal an alteration to a document where a different type of ink, although identical in colour, has been used.

Such infrared transparent inks are also used as a security feature. 

 

EXAMINE IR ABSORPTION USING THE FOLLOWING PRODUCTS

VSC6000/HS the leading document examination system

VSC400 compact and verstaile document examination system

VSC40/HD Range modular systems configured to meet user requirements

VSC-QC1 Front line travel document scanner