Abstract
A combination of optical and tomographic imaging techniques for inspection of local surface roughness and specular gloss of black prints and coated paper are introduced. A diffractive optical-element-based glossmeter (DOG) and a low-coherence interferometer (LCI) were used to obtain local information about the print in terms of topographic and gloss maps. X-ray microcomputed tomography (μCT) was used to obtain 3D local structural information of the coated paper. Gloss and topographic maps were used to determine statistical gloss and roughness parameters. These parameters were useful when analysing the surface condition of prints and coated paper. We found an orientation-dependent gloss slope, which reflects the fact that gloss does not depend on the surface roughness alone. Slope parameters turned out to be particularly sensitive to surface properties.
Original language | English (US) |
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Pages (from-to) | 101-108 |
Number of pages | 8 |
Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
Volume | 299 |
Issue number | 1-3 |
DOIs | |
State | Published - May 15 2007 |
Externally published | Yes |
Bibliographical note
Funding Information:This study was performed in a Molecular Understanding of Printability Project (MOLPRINT) which is part of Network of Competence in Formation of Surface Properties (NETCOAT), funded by Research and Development Centre of Finland (Tekes).
Keywords
- Gloss
- Glossmeter
- Low-coherence interferometer
- Paper
- Surface roughness
- Surface topography
- X-ray micro-computed tomography
ASJC Scopus subject areas
- Surfaces and Interfaces
- Physical and Theoretical Chemistry
- Colloid and Surface Chemistry