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Method to determine light scattering efficiency of pigments

  • US 6,236,460 B1
  • Filed: 01/11/2000
  • Issued: 05/22/2001
  • Est. Priority Date: 01/29/1999
  • Status: Expired due to Term
First Claim
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1. A method to determine light scattering efficiency of a mixture containing at least one light scattering component, comprising:

  • (a) preparing a dilute slurry of the mixture in a continuous liquid medium having a known concentration, where concentration is the concentration of mixture solids in the slurry;

    (b) measuring the total transmittance (T) of the slurry at a wavelength (λ

    ) of at least 600 nm;

    (c) converting the transmittance measurement (T) to optical density (OD) by the equation

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