Kelheim to show viscose fibres for filtration at Filtech

In contrast to other cellulosic fibres such as cotton, for example, viscose fibres stand out not only as a result of their definable and reproducible geometry, which enables a perfect match to be made to the specific processing route or end application.

The porosity or surface of a filter can, for example, be controlled precisely by adding the appropriate viscose fibres with specific cross sections. Furthermore, the incorporation of functional additives allows the manufacture of tailor-made fibres according to the end product’s exact demands.

The benefit: the additives are locked in the fibre and have no impact on the filter’s physical properties – and at the same time, they maintain their effect!

Kelheim’s fibres are ISEGA certified and medically and environmentally compatible. They are therefore ideally suited for sensible applications like hygiene or medical products, for example in HME filters (Heat and Moisture Exchange filters) used in respiration equipment.

Viscose fibres have a neutral taste and can be used in filters for food and beverage applications such as tea bags or coffee pads. If viscose fibres with ion exchange properties are used here, the coffee pad also delivers an additional water softening effect.

Another special application is the decolouring of waste water of dye factories: tests have shown that filters with the cationic activated Danufil Deep Dye fibre offer particularly fast and effective dye absorption.

Furthermore, Kelheim’s scientists are analysing a whole range of possible applications. Thanks to the diversity of their product catalogue – from extra absorbent to water repellent fibres, from flame retardant to ion exchange fibres – there are almost no limits to the imagination.

And as well as this, as they are manufactured from a 100% renewable material, viscose fibres are carbon neutral when incinerated at the end of the filter’s life span or can – depending on the residue in the filter – be composted.

Kelheim Fibres