Patent ID: 9068292
Filing Date: 2015-06-30
Classification: B41M,D21H

Abstract:
1. An uncoated recording medium, comprising: a blend of hardwood chemical pulp fibers, softwood chemical pulp fibers, and thermomechanical pulp (TMP) fibers, wherein a total fiber content is at least 80 wt % of a total wt % of the uncoated recording medium, and wherein the hardwood chemical pulp fibers are present in an amount ranging from about 20 wt % to about 70 wt % relative to the total fiber content, the softwood chemical pulp fibers are present in an amount ranging from about 30 wt % to about 50 wt % relative to the total fiber content, and the TMP fibers are present in an amount ranging from about 10 wt % to about 30 wt % relative to the total fiber content, and wherein the blend includes a ratio of the hardwood chemical pulp fibers to the softwood chemical pulp fibers to the TMP fibers selected from 40:50:10, 40:30:30, and 20:50:30; titanium dioxide present in an amount ranging from about 1.5 wt % to about 6 wt % of the total wt % of the uncoated recording medium; and a bivalent or multivalent salt present in an amount ranging from about 6,000 μg per gram of the uncoated recording medium to about 16,000 μg per gram of the uncoated recording medium; the uncoated recording medium having a basis weight ranging from about 45 g/m