A thermal transfer printing medium that contains a thermal transfer layer which contains a first taggant and colorant, wherein: the first taggant comprises a fluorescent compound with an excitation wavelength selected from the group consisting of wavelengths of less than 400 nanometers, wavelengths of greater than 700 nanometers. When the thermal transfer layer is printed onto a white polyester substrate with a gloss of at least about 84, a surface smoothness Rz value of 1.2, and a reflective color represented by a chromaticity (a) of 1.91 and (b) of −6.79 and a lightness (L) of 95.63, when expressed by the CIE Lab color coordinate system, and when such printing utilizes a printing speed of 2.5 centimeters per second and a printing energy of 3.2 joules per square centimeter, a printed substrate with certain properties is produced. The printed substrate has a reflective color represented by a chromaticity (a) of from −15 to 15 and (b) from −18 to 18, and the printed substrate has a lightness (L) of less than about 35, when expressed by the CIE Lab color coordinate system. When the printed substrate is illuminated with light source that excites the first taggant with an excitation wavelength selected from the group consisting of wavelengths of less than 400 nanometers, wavelengths greater than 700 nanometers, the printed substrate produces a light fluorescence with a wavelength of from about 300 to about 700 nanometers.

Thermal transfer ribbon

A method of marking an industrial process material including selectively incorporating a luminescent marker onto and/or into the industrial process material in a trace amount insufficient to be optically detectable in the presence of ambient light but sufficient to be non-destructively optically detectable in and/or on the industrial proce material in situ in the field or on-site. The trace amount of the luminescent marker is used to track, identify authenticate the industrial process material for at least one of material control, inventory control, stock control, logistics control, quality control and pollution control.

High-resolution tracking of industrial process materials using trace incorporation of luminescent markers

The invention relates to a self-adhesive or heat-sealable security document (V), which may be placed on an article (P), characterised in that the above comprises at least one support (1) which may be printed on the rear face thereof, the front face of said support being treated with a layer of self-adhesive or thermo-sealing glue and at least one marker (3) emitting a signal which is characteristic thereof, such that after sticking said document (V) to the article (P) by means of said layer of glue and on removing said document (V), at least a part of said marker detaches itself from the support (1). The invention further relates to a method for authentication of the article.

Security document with marker

An automatic reader system, apparatus, and method for the identification and authentication of articles enabling automatic collection and processing of code data associated with microparticle marks, automatic determination of the code from the code data associated with microparticle marks, and automatic retrieval of reference information associated with the code.

Automatic microparticle mark reader

The present invention relates to a security structure ( 10 ), comprising at least one first fluorescent composition ( 13 ) and at least one second phosphorescent composition ( 12 ), the first and second compositions being simultaneously excitable by a predefined illuminant from a single first surface ( 14 ) of the structure, the security structure ( 10 ) being provided in the form of a security thread, a security film, or a patch, wherein the first fluorescent composition is at least partially stacked on the second phosphorescent composition and/or the first and second compositions are used for the reference marking on the security structure.

Security Structure Including Phosphorescent and Fluorescent Compositions

Security films that are useful for pharmaceutical packaging. In particular, anti-counterfeiting security films having a luminescent composition on or in a fluoropolymer layer, which luminescent composition luminesces upon the application of ultraviolet radiation in the 200 nm to 300 nm range, in which the luminescent component is optionally and preferably not viewable to the unaided eye. The films are particularly useful for the formation of anti-counterfeiting blister packaging in compliance with FDA regulations.

Security taggants in adhesive plastic film laminate for pharmaceutical packaging

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Security taggants in adhesive plastic film laminate for pharmaceutical packaging