Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


New simulation tool enhances competitiveness of paper industry

Researchers at Mid Sweden University have developed the next generation of simulation tools for optical properties in paper and print. This provides paper producers with greater accuracy and increased understanding while also facilitating communication between the paper and the graphics industries for properties like whiteness and color.

A large number of optical properties in paper and print are determined by measuring the light reflected from an illuminated paper surface. These measurements are interpreted through a model, and the one that has been in use in the paper industry since the 1930s is deficient in some respects.

“We discovered that this is because the light is reflected in different amounts in different directions in an unexpected way. Our new model can explain and cope with this,” says researcher Per Edström.

What made this new discovery possible is his research into numerical methods for effectively solving a class of integro-differential equations. This is a type of problem that has applications in such diverse spheres as the greenhouse effect, medical tomography, and light diffusion in diffuse media.

“The methods Per Edström has developed are not only original. They have also been shown to be robust, accurate, and extremely effective,” says Professor Mårten Gulliksson.

Developmental work has involved collaboration with several companies in the paper industry. There has been a great interest since increased knowledge in this field means greater competitiveness.

“We have already started to use the new model,” says Nils Pauler at M-Real’s Research Center in Örnsköldsvik in Sweden. “We hope it will help us understand different variations in the visual impression made by paper and print.”

“It should be pointed out that Per Edström’s dissertation involves a tremendously broad spectrum of subject areas. From an advanced formulation of the physical problem in mathematical form, which is extremely well rooted in applications, he develops a stable and effective software that can be directly put to use by the industry with great success. This is an impressive achievement that is seldom witnessed in the field of mathematics.”

These are the concluding remarks of Professor Mårten Gulliksson.

The dissertation is titled ”Mathematical Modeling and Numerical Tools for Simulation and Design of Light Scattering in Paper and Print.”

Lars Aronsson | alfa
Further information:

More articles from Process Engineering:

nachricht Etching Microstructures with Lasers
25.10.2016 | Fraunhofer-Institut für Lasertechnik ILT

nachricht Applying electron beams to 3-D objects
23.09.2016 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Greater Range and Longer Lifetime

26.10.2016 | Power and Electrical Engineering

VDI presents International Bionic Award of the Schauenburg Foundation

26.10.2016 | Awards Funding

3-D-printed magnets

26.10.2016 | Power and Electrical Engineering

More VideoLinks >>>