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About the INVIS-IDTM Professional Marking Kit

Our INVIS-ID Professional Property Marking Kit was developed to be an extremely versatile off-the-shelf solution for safely marking a virtually limitless variety of items with durable, invisible ink. It is an excellent tool for homeowners and businesses alike.

The INVIS-ID line of security ink marking solutions are used for authentication, anticounterfeiting, and theft or loss prevention. Applications include marking sensitive documents and physical assets in a covert manner with invisible ink. We have tools under development for marking with security or invisible inks, but also for viewing or authenticating these markings.

We have exciting, new products under development such as a customizable self-inking stamp which can be used to mark both documents or physical assets with invisible ink. In addition to text, we can produce these stamps to mark invisible logos and even barcodes. Also under development is a specialized barcode scanner which will be able to scan and read invisible barcodes into a PC in the same manner as a standard barcode scanner.

About Invisible Ink

Invisible inks contain unconventional dyes or pigments which become visible when exposed to an excitation light source which causes them to fluoresce. Invisible inks are a subcategory of a class of inks known as security inks. Such inks are widely used in bank notes or currency as an anti-counterfeit measure.

Security inks are specialized inks used for the purpose of authentication, anti-counterfeiting, and loss or theft prevention. There are primarily two types of invisible inks: Downconverting and upconverting. These correlate to UV inks (ultraviolet) and IR inks (infrared) they fluoresce when exposed to these types of light sources.

Downconverting inks are invisible until they are exposed to UV (ultraviolet) light where they will fluoresce and emit a wavelength (color) in the visible part of the optical spectrum which is at lower frequency than the UV light source, thus downconversion is taking place. Wavelength is measured in nanometers (nm). The visible color spectrum is between 400nm 700nm from blue to red. UV is between 250nm 400nm. The longer the wavelength, the lower the frequency. A typical black light for example, emits UV light at 365nm.

Upconverting inks are invisible until they are exposed to IR (infrared) light where they will fluoresce and emit a wavelength (color) in the visible part of the spectrum which is at a higher frequency than the IR light source, thus upconversion is taking place.

There are also upconversion and downconversion inks which will fluoresce in the infrared part of the spectrum from either a UV or IR light source. These inks will remain invisible to the unaided eye. Such inks further enhance security because they can only be seen and deciphered by machine vision or aided eye only.