PAPER OR PAPER BOARD COATING COMPOSITION CONTAINING A STRUCTURED CLAY PIMENT

摘要

A coating composition for paper or paperboard products comprising a structured pigment. The structured pigment includes a plurality of chemicall y treated mineral particles. The mineral particles have a Malvern median particle size of about 0.3 microns to about 3.5 microns. The Malvern median particle size of the treated particles is less than 20% greater than the Malvern median particle size of the mineral particles prior to treatment.