SECURITY PACKAGING

摘要

There is disclosed a means of verifying the authenticity of merchandise or uniquely identifying a particular batch or pack of merchandise by providing on or within the merchandise packaging a magnetically coded strip comprising high permeability, low coercivity material. The magnetically coded strip exhibits zero or very low remanence and consequently is not susceptible to permanent change in its magnetic properties by exposure to a strong magnetic field. In one particular embodiment, the magnetically coded strip is embedded within the tear-off strip which forms part of the outer wrapping of cigarette packaging.