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AssigneeStora Enso North America Corp.
InventorsCharles A. Normington, Gregory E. Pulchinski, Gary G. Schiller, Brian L. Scheller
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A recording medium particularly suitable for electrophotographic copying is characterized by coated paper that for a given basis weight has proportionally less coating and proportionally more fiber than conventional coated paper made for electrophotographic processes. The base sheet of the coated paper is preferably formed square on a paper machine wet end and has on the order of 40-50% less filler than conventional sheet paper made for electrophotographic processes. After being formed and dried, the base sheet is provided with a top coat weight that is approximately 60% less than the typical coat weight used for conventional paper. The coating is formulated to have sufficient viscosity to stay more on the surface of the base sheet. The coated sheet is calendered to a medium gloss on the order of a 75° TAPPI gloss of about 45, both to preserve a degree of surface roughness to enhance runnability of the paper through an electrophotographic copier and to provide a pleasant and easily readable surface. In improving on conventional paper, the paper of the invention provides for good fusion of dried toner on the paper at marginal lower temperatures. Additionally, the invention can also be applied to heavier weight papers used to form covers, for example, on reports.
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, comprising a paper base containing fiber;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, such as in an electrophotographic copier or printer, comprising a paper base containing fiber, said paper base sheet including high-ash broke, filler derived from a pigment component of said high-ash broke and in part from calcium carbonate, titanium dioxide, and one or more of hardwood kraft, softwood kraft and recycled paper;
A coated paper adapted to provide improved fusion of toner on a surface thereof at marginal fusion temperatures in an electrophotographic process, such as in an electrophotographic copier or printer, comprising a paper base containing fiber, said paper base sheet including high-ash broke, filler derived from a pigment component of said high-ash broke and in part from calcium carbonate, titanium dioxide, and one or more of hardwood kraft, softwood kraft and recycled paper;
Dependencies are inferred from the claim text.