Companies and brand owners using ultra-violet (UV) invisible ink technology to protect their products against counterfeiting could be leaving themselves open to problems due to the widespread, illegitimate availability of the technology.    This is the view which as been expressed at numerous specialist security conferences attended by marketers and security experts over the last 12 months, and has led to the emergence of a new generation of Infra Red (IR) security inks and coatings.   Sta...