Patent ID: 6410158
Filing Date: 2002-06-25
Classification: D21H,Y10T

Abstract:
A high gloss coated paper having applied to at least one surface thereof the dried residue of from about 6 to 18 lbs/ream (ream size 3300 sq. ft) of an aqueous coating formulation, said coating formulation comprising:a pigment composition comprising, by weight as coating pigments, about 0-33% coating clay, 46-60% calcium carbonate, and from about 14-35% of a hollow sphere plastic pigment, wherein 100% of the pigment composition equals 100 parts weight, from about 10 to 12 parts by weight binder per 100 parts pigment composition, and water in an amount sufficient to provide a coating formulation with a solids content of from about 45 to 60%; said coated paper exhibiting a 75 degree paper gloss of at least about 90, a 60 degree paper gloss of at least about 55, a 20 degree paper gloss of at least about 35, and a Parker Print Surf of from about 0.44 to 0.65; wherein the high gloss characteristics of the coated paper are provided by finishing, after the coating has been applied, by passing the coated paper through a plurality of nips in a supercalender device at a load of from about 1500 to 2000 pli, wherein at least one of the nips includes a heated roll having a surface temperature of from about 100-240 degrees F. in contact with the coated surface of the paper.