Radiation-transfer Calculations for the Diffuse Reflectance from Pigmented Coatings

We use a numerical solution of radiation transfer equations to calculate the diffuse reflectance of a pigmented film composed by a transparent pigment embedded in a latex resin. We introduce in the calculation experimentally determined values for the optical absorption of the resin as well as for the particle size distribution of the pigment, and analyze the sensitivity of the diffuse reflectance to the different parameters of the model.