de-432-wochenblatt-fuer-papierfabrikation-8-23.pdf
size: 2,16 MB

News paper articles "Coating International"
"Web guiding reinterpreted"

Issue August 2020

New concepts for web guidance in blow extrusion lines.
A study in collaboration with ITP, Industria Termoplastica Pavese SpA,
Bonasco Italy

Interview with Armando Giovannelli
Head of Sales, Lüraflex GmbH

web guiding reinterpreted
size: 315,83 KB

News paper articles "Coating International"
"Rollers – yesterday, today and tomorrow"

Issue January 2019

Lüraflex, initially based in Ratingen and now in Neuss, is 70 years
old. It was founded by Gerhard Lückenotto in 1949, initially as a
seller of rubberised articles. Over the years, Mr Lückenotto spe-
cialised in rollers. The next step was to set up a roller production
plant. The Lückenotto family successfully managed the company
until the third generation. In 2012, the Lückenotto family sold the
company. Since then, the company has not only developed as a
roller manufacturer, it has also constantly expanded its product
range to include special solutions.

rollers yesterday today and tomorrow
size: 1,09 MB

News paper articles "Coating International"
"Rollers with multifunctional surfaces"

Issue June 2018

Interview with Armando Giovannelli,
Head of Sales, Lüraflex GmbH

There are a great many elastomers with a wide range of properties that can be used for coating «rubberised rollers». Some are resistant to ozone, acid or oil, while others can be electrically conductive o rinsulative. On the other hand, rollers may have a smooth or permanently rough surface, surfaces for creating matt finishes, cutresistant, abrasion resistant ... to go through all the variations could take hours...But no one roller manages to combine different, possibly mutually opposing properties on a single surface. Our idea is to manufacture a roller with a range of properties by combining rubbers of different qualities.

rollers with multifunctional surfaces
size: 2,13 MB

News paper articles "Wochenblatt für Papierfabrikation", Issue November 2014

Papers are calendered in order to improve their surface properties and facilitate finishing. Problems that arise with the web lead system during the process can be prevented through the use of spreader rolls.

improving calendering quality
size: 509,61 KB

Lectures "27th PTS Coating Symposium 2015"
16th - 17th September 2015

New rubber covering as a solution in the high-speed flying splice method

In an offline coater, the web is made infinite with the help of a special adhesive tape using the so-called “flying splice”. Here, the bonding process takes place in the millisecond range by pressing a rotating, rubberized roller onto the full paper roll. The paper tears even if a very minor disturbance occurs. The web edges are often obviously inadequately bonded. An increase of the pressing force, especially in the region of the edges, was required in order to create a higher line pressure there, as well as a sufficient line pressure in the center of the web. However, since the roller had to retain its cylindrical shape, a novel rubber-coated structure was developed. Significant improvements have already been achieved in practice.

new concepts for multilayer flying splice roll covering
size: 967,71 KB

new concepts for multilayer rollercovers
size: 615,75 KB

Lectures "PTS Finishing 2005"
September 2005

In the finishing spreader rolls are indispensable. They remove or prevent incorrect wrinkles thus e.g. damaging the paper, creating an imprecise paint application or causing a paper roll to be "curly".

lectur pts finishing german language
size: 1,52 MB

paper finishings optimum product quality thanks to correct spreader roll parameter
size: 766 KB