Kelheim Fibres, experts in manufacturing viscose speciality fibres, offers an innovative solution: In cooperation with Tailorlux, the specialist for anorganic phosphors, Kelheim has developed a viscose fibre “with a fingerprint”.
To achieve this, luminescent pigments from Tailorlux are incorporated in the viscose fibre matrix during the spinning process – so the pigments are intrinsically bound to the fibre and durable. Tailorlux produces customised pigments in a range of more than 300 billion combinations, each with its own individual spectrum.
Fibres incorporating these pigments bear their characteristic spectroscopic fingerprint in the body of the fibre; the fibres – as well as the products made using them - can be precisely identified and are therefore impossible to forge.
Validation is by light spectroscopy, a widely recognised and uncomplicated method. The pigment can be detected in a non-destructive or a destructive examination (for example in the ash of a product). For quick checks in the field, Tailorlux offers a simple hand scanner.
Kelheim Fibres’ latest development is primarily aimed at the paper industry: Viscose fibres can be easily integrated in the papermaking process and remain – together with the pigments incorporated in the fibre - in the paper. Thus loss of pigments in the process is a thing of the past!
More possible applications can be seen in the textile or nonwovens industry – namely whenever products need an invisible but unique identification mark. These fibres can ensure the traceability of filters or other products for example – or they can help to control the compliance of predetermined supply chains in the textile industry.
Kelheim Fibres is able to manufacture diverse types of viscose fibres incorporating Tailorlux’ luminescent pigments, based on the customer’s specific needs, which allows a perfect match to the end product and to the customer’s production process.