Colloid and Polymer Science

, Volume 272, Issue 9, pp 1111–1117 | Cite as

Enhancement of the light-scattering ability of coatings by using hollow pigments

  • C. Rennel
  • M. Rigdahl
Original Contributions


The light-scattering properties of coatings based on monodisperse polymeric spheres of two different diameters (ca 0.5 and 1 μm) were evaluated from reflectance measurements as a function of the wavelength from 400 to 700 nm. Some of these plastic pigments were hollow and it was noted that these particles gave coatings with a greater light-scattering ability than coatings based on solid particles of a similar size. It was possible to estimate the contribution of the internal pores to the scattering ability of the coating layers by saturating the layers with an oil of a refractive index similar to that of the polymeric pigment particles. A simple model accounting for the scattering provided by the internal pores of the hollow particles is suggested. The agreement between the experimental results and the prediction of the model is fair. It was noted that the light scattering coefficient of the coatings increased when the external diameter of their constituent hollow particles increased from ca 0.5 to 1 μm.

Key words

Coating optical scattering pigment plastic pigment porosity 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Simmons EL (1975) Appl Optics 14(6):1380Google Scholar
  2. 2.
    Nobbs JH (1985) Rev Coloration 15:66Google Scholar
  3. 3.
    Clewell DH (1941) J Optical Soc Amer 31:521Google Scholar
  4. 4.
    Kerker M, Cooke DD, Ross WD (1975) J Paint Techn 47:33Google Scholar
  5. 5.
    Ross WD (1971) J Paint Techn 43:50Google Scholar
  6. 6.
    Borch J, Lepoutre P (1978) Tappi, 61(2):45Google Scholar
  7. 7.
    Alince B, Lepoutre P (1980) J Coll Interf Sci 76:182Google Scholar
  8. 8.
    Gate LF (1972) J Phys D Appl Phys 5:837Google Scholar
  9. 9.
    Lindblad G, Iversen T, Bergenblad H, Rigdahl M (1989) Nordic Pulp Paper Res J 4:253Google Scholar
  10. 10.
    Brown JT, Latimer JJ (1992) Proc TAPPI Coating Cont, p 77Google Scholar
  11. 11.
    Brown JT, Lunde DI (1992) World Pulp & Paper Technology, Sterling Publ Int Ltd, London, p 229Google Scholar
  12. 12.
    Kerker M (1969) The Scattering of Light, Academic Press, New YorkGoogle Scholar
  13. 13.
    Lepoutre P, Rezanowich A (1977): Tappi 60(11):86Google Scholar
  14. 14.
    Graton LE, Fraser HJ (1935) J Geol 43:785Google Scholar
  15. 15.
    Nordman L, Aaltonen P, Makkonen T (1966) in Bolam F (ed) Consolidation of the Paper Web. Trans Symp, British Paper and Board Makers' Association, Vol 2, p 909.Google Scholar
  16. 16.
    Nassau K (1987) Colour Res Appl 12:4Google Scholar
  17. 17.
    Fineman I, Bergenblad H, Pauler N (1990) Das Papier 44(10A):V56.Google Scholar

Copyright information

© Steinkopff-Verlag 1994

Authors and Affiliations

  • C. Rennel
    • 1
  • M. Rigdahl
    • 1
  1. 1.Swedish Pulp and Paper Research Institute (STFI)StockholmSweden

Personalised recommendations