by wpengine | Aug 11, 2021
Also referred to as a unique identification marking (UIM) in the WHO FCTC Protocol to Eliminate Illicit Trade in Tobacco Products. A unique identifier, in the context of excise goods traceability, is a serial number, assigned by a central authority for application to...
by wpengine | Aug 11, 2021
The part of the electromagnetic spectrum between 100nm and 400nm, or between visible light and X-rays.
by wpengine | Aug 11, 2021
A first-level requirement of security paper, which needs to be made from virgin pulp which is free of optical brighteners (ie. which is UV-dull). This is because optical brighteners mask or interfere with UV fluorescent security print and fibres.
by wpengine | Aug 11, 2021
A photochemical process in which high-intensity ultraviolet light is used to instantly cure or ‘dry’ inks, coatings or adhesives.
by wpengine | Aug 11, 2021
The passing of light through an object (as opposed to light reflecting off an object). Watermarks in security paper are usually viewed in transmitted light by holding the paper up to the light source.
