Patent ID: 8252373

Claim:
A method of producing a coated paper, comprising: (a) preparing an aqueous coating formulation comprising: (i) water; (ii) a first pigment having a BET surface area in the range of from about 50 to about 750 m 2 /g and selected from the group consisting of silica, silica sol, fine (sub micron) particles of precipitated calcium carbonate, fine (sub micron) particles of kaolin clay, synthetic clay, calcium silicate fine powder, and a mixture thereof; (iii) a second pigment having a BET surface area in the range of from about 5 to about 49 m 2 /g and selected from the group consisting of ground calcium carbonate, precipitated calcium carbonate, kaolin clay, calcined clay, titanium dioxide, plastic pigment, talc, wax particles, polymeric beads, and a mixture thereof; and (iv) a polymeric binder; (b) applying the aqueous coating formulation to one or both surfaces of a paper substrate, to form a coated paper; (c) drying the coated paper, to form a dried coated paper; and (d) calendaring the dried coated paper to form a dried calendared paper suitable for multifunctional printing, said dried calendared paper comprising: a paper substrate; and a pigmented composition coated on at least one surface of the substrate, said pigmented coating composition comprising a mixture of: (a) a first pigment having a BET surface area in the range of from about 50 to about 750 m 2 /g, wherein said first pigment is silica, silica sol, fine (sub micron) particles of precipitated calcium carbonate, fine (sub micron) particles of kaolin clay, synthetic clay, calcium silicate fine powder, or a mixture thereof; (b) a second pigment having a BET surface area in the range of from about 5 to about 49 m 2 /g, wherein said second pigment is ground calcium carbonate, precipitated calcium carbonate, kaolin clay, calcined clay, titanium dioxide, plastic pigment; talc, wax particles, polymeric beads, or a mixture thereof; and c) a polymeric binder, said dried calendared paper having a coating gloss equal to or greater than about 30% at 75° and a Bristow Absorption length of less than about 180 mm.