Pagora rubrique Formation 2022

Papers optical properties - 3FMT1019

  • Number of hours

    • Lectures 6.0
    • Projects -
    • Tutorials 6.0
    • Internship -
    • Laboratory works -

    ECTS

    ECTS 15.0

Goal(s)

0ptical properties of paper and their measurement.

Learning outcome:

  • To know and understand the main phenomena occurring during the interactions occuring between light and fibrous materials and, more generally, light-absorbing and scattering materials.
  • To know the optical properties classically measured for papers and the main spectral properties of sources and illuminants
  • To know the measurement methods of the main optical properties of papers.
  • Understand the influence of the illumination geometry, of the light source and the observation on the measurement of the spectral response (relation between the degree of whiteness, opacity, basis weight and degree of gloss)
  • Understand the contribution of additives (dyes, fluorescent agents, mineral fillers) to the degree of whiteness
  • Understand and know how to apply the Kubelka and Munk models

Responsible(s)

Lionel CHAGAS

Content(s)

Subjective and objective factors in the evaluation of paper appearance properties

Light interactions with scattering and absorbing materials

Radiometry and photometry: some definitions

Reflectance factors

Methods of measuring optical properties (spectral characteristics of sources and illuminants, geometry of illumination and observation)

Definitions: degree of whiteness, opacity, degree of gloss, CIE whiteness

Effect of paper properties (e.g. density) and additives (dyes, fluorescent agents, mineral fillers)

Presentation and application of the Kubelka and Munk model to predict optical properties

Prerequisites

General scientifcal knowledge (skill L2)

Accessibility for people with disabilities : please contact us for further information

Test

Written test

note = note du DS

Calendar

The course exists in the following branches:

  • Curriculum - Pagora Engineer - Apprentice - Semester 5
  • Curriculum - Pagora Engineer - Student - Semester 5

Additional Information

Course ID : 3FMT1019
Course language(s): FR

You can find this course among all other courses.

Environmental security

Déroulement de l’enseignement en salle de cours standard.
Sécurité : RAS
Environnement : RAS

Bibliography

PAULER N. Propriétés optiques du papier. Kista : AB Lorentzen et Wettre, [1995-2000].
TECHNIDYNE CORPORATION. Measurement and control of the optical properties of paper.
SILVY J. Les propriétés optiques du papier et leur mesure.
LAFAIT J., ELIAS M. La couleur : lumière, vison et matériaux. Paris : Belin, 2006.