Material testing and product properties
- Why test pulp and paper?
- Fibre properties
- Papermaking properties of pulp
- Fluff pulps
- Chemical analysis of pulps
- General physical properties of paper and board
- Optical properties of paper
- End-use properties of printing papers
- End-use properties of packaging papers and boards
- Tissue papers
- Permanent papers
- Reliability of results in physical testing of pulp and paper
- Quality control at the mill
- Standardisation in pulp and paper testing
Reflectance measurements The impression of brightness and colour of an object depends on the character of light illuminating the object, the reflectance and absorption properties of the object, and the relative sensitivity of the eye to different wavelengths of light. Giving the relative amount of radiation at each wavelength i.e., the spectral energy distribution of
Authors & references
Edited by:
Petteri Maijanen, ABB
Original author:
Juhani Vaarasalo
Based on: Vaarasalo J., Optical properties of paper (Chapter 8). In: Levlin, J-E. & Sjöderhelm, L. (ed), Pulp and paper testing (Book 17), Papermaking Science and Technology. Jyväskylä. 1999. Fapet Oy. pp. 163-181.
References:
- Pauler, N., Paper Optics, 2nd Edition, AB Lorentzen & Wettre, Kista, 2012, p. 38.
- ISO 11664-2:2007(E)/CIE S014-2/E:2006 Joint ISO/CIE Standard: Colorimetry — Part 2: CIE Standard Illuminants
- Pauler, N., Paper Optics, 2nd Edition, AB Lorentzen & Wettre, Kista, 2012, p. 41
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This page has been updated 31.03.2021