| abstract |
A pigment product suitable for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin whose particles have a particle size distribution such that at least 80% by weight of the particles have an equivalent spherical diameter less than 2 μm and not less than 8%, preferably not less than 12%, by weight of the particles have an equivalent spherical diameter less than 0.25 μm and whose particles have a shape factor of at least 45, preferably at least 50. |