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03/2010

FibreNewsPaper

Faserquerschnitt

Innovations for your success

Kelheim Fibres is one of the leading producers of viscose speciality fibres. For us, innovation is
the key to a successful future. Our dynamic R&D team is focussed on continuously improving our products and meeting our customer′s specific needs.
Recently we intensified our activity in the areas of wetlaid and paper and developed fibre specialities that will help improve the properties of your products. We are now pleased to introduce these fibres to you - this newsletter will keep you updated on our activities and on how you can benefit from them.

Kelheim Fibres
presents results of a new study at Zellcheming

Viscose fibres improve paper properties – this is the result of a newly conducted study which
we presented at this year′s Zellcheming for the first time. The work carried out has shown that speciality papers can benefit in a number of ways from the incorporation of Kelheim`s new fibres.
Viscose fibres improve paper properties
By the choice of the appropriate viscose fibre cross
section the density of the paper can be precisely controlled: the density of the paper sheet decreases in proportion to the surface area of the fibre added.
In the same way, viscose fibres are used to improve
and control the porosity of a paper – a crucial point for example in the production of tea bag or cigarette papers
– or to modify the double fold properties of a sheet, an important factor for currency papers.
Even small quantities of viscose fibres can enhance the tear resistance of speciality papers: by
the incorporation of 10% viscose fibres, the tear resistance of the paper can be increased on
average by 40%! At the same time viscose fibres can improve the tear strength of the paper.
In this manner an improvement in tear strength with a simultaneous increase of tear resistance
is possible – which cannot be achieved by simply increasing the level of refining.
Viscose fibres improve paper properties
Kelheim′s special fibres Bellini, Bramante, Viloft, Galaxy and Danufil all show better results than 100% Eucalyptus pulp.
As well as this, papers incorporating viscose fibres generally exhibit better dewatering properties and, depending on the additive incorporated in the fibre, improved retention properties – for more details on this, please see the next paragraph.

Kelheim′s viscose specialities enhance retention

One of the key challenges of the papermaking process is finding a efficient way to keep solids in the paper sheet and to ensure their even distribution.
The incorporation of functional additives such as titanium dioxide, talcum or colour pigments
pose a particular challenge for the paper makers and auxiliaries – which add no further
functionality to the paper – are used to deliver better retention. Kelheim′s new viscose fibre specialities can help here in two ways: We can include the desired functional additives in the viscose fibre matrix and thereby reduce the quantity of free functional additives in the paper
furnish.
Unlike other additives, viscose fibres with embedded functional particles do not negatively influence the integrity of the paper sheet – in fact they can help improve it. By the use of
modified viscose fibres paper makers can reduce of eliminate the use of retention auxiliaries
and functional additives and at the same time achieve better sheet forming.
An alternative solution for the same challenge is our cationic viscose speciality Deep-Dye.
Deep-Dye helps retain anionic solids in the paper sheet. The fibre itself acts as retention
auxiliary and helps at the same time to enhance the paper properties.

Bellini fibre optimised

In our last newsletter we presented you the first paper sheet made out of 100% viscose fibres – enabled by our newly developed viscose fibre Bellini with it′s outstanding self-bonding properties.
In the meantime we can offer you an even improved version of our Bellini fibre:
tensile strenght elongation
tear lenght tear resistance
double folds fibre
All the parameters under examination – such as tear strength, tear resistance and double folds – show a considerably better performance than before. For more details on this development, please contact our Mr Nicolas Masse (nicolas.masse@kelheim-fibres.com, phone: 0033 155 934004)

Poseidon provides soft water

Our new viscose speciality fibre Poseidon with ion exchange properties can be integrated in filters, where it helps to filter particles and cationic substances out of a liquid. Poseidon fibres provide not only an enormous advantage for the further processing – they can easily be integrated in any nonwovens or paper products – but also add extra functionality to the end product.
Viscose fibres improve paper properties
With Poseidon we particularly offer a solution to the widespread problem of hard water: only 20g of Poseidon fibres reduce the hardness of water by 10° dH (German Hardness).
We doubt that the Greek god Poseidon, after which our fibre is named, would be too pleased with this achievement. He was famous for his outbursts of
temper and would not like to hear his name linked
to the word soft.

Our technical centre – the first step to your new product

In a previous issue of PaperNews we introduced our paper technical centre and its pilot plants. After the first few months of its existence and a number of trials with a range of new products, we are encouraged by the positive feedback from users.
We will maintain a strong focus on the practical side of our R&D activities and would like to invite you to make full use of the possibilities our technical centre has to offer you: you can fully explore the benefits our fibres deliver in your new product, and together we can find the unique tailor-made fibre which is perfectly matched to your productprime;s requirements.
If you are interested in a test run in our technical centre, please contact Ms Anemone Schmitsdorf (anemone.schmitsdorf@kelheim-fibres.com, phone: 0049 9441 99353)

Upcoming events

This autumn, you will have the opportunity to catch up on our latest developments at
Specialty Papers, Chicago, 10-11 November 2010
www.pira-international.com/specialtypapers2010.aspx

Our team is looking forward to seeing you there!