期刊
MEASUREMENT SCIENCE AND TECHNOLOGY
卷 20, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/20/2/025309
关键词
reflectometry; angle-resolved light scattering; gloss; refractive index; microroughness; roughness; coated paper; printed paper; paint
Roughness, porosity and gloss are important properties of many surfaces including coated and printed paper, paints and mineral-filled plastics. A visible light reflectometer is described for essentially simultaneous measurement of refractive index, gloss, microroughness (rms amplitude in the sub-wavelength region) and the two-dimensional forward scattering pattern (yielding the surface slope distribution and associated statistics) of glossy or semi-glossy low-extinction surfaces. The principal novelty is the ability to obtain this useful combination of data in a single measurement. In combination with an x-y stage, the reflectometer can readily produce surface maps of the various measurement parameters and it is expected that the data should offer improved insights into cause and effect in paper and other surfaces, for example to identify causes of gloss and print mottle. Illustrative experimental data are provided and some comparisons made between data obtained by reflectometry and by alternative techniques such as spectroscopic ellipsometry and atomic force microscopy.
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