Patent ID: 6852422

Claim:
A composite printable packaging paper, comprising: (a) a kraft paper substrate having a basis weight of about 25 pounds per 3000 square feet to about 70 pounds per 3000 square feet, fiber content of said kraft paper substrate comprising at least 80 percent by weight softwood fibers, said kraft paper substrate having a first surface on a first side thereof, and an opposing second surface on a second side thereof; and (b) in combination, about 4 pounds per 3000 square feet to about 20 pounds per 3000 square feet of flexible print coating on the first surface, said flexible print coating having an outer surface thereof disposed away from the first surface of said substrate, and comprising. (i) about 5 percent by weight to about 50 percent by weight clay (ii) about 10 percent by weight to about 50 percent by weight binder, said binder comprising about 30 percent by weight to 100 percent by weight acrylic polymer and optionally up to about 70 percent by weight polyvinyl alcohol copolymer wherein such polyvinyl alcohol copolymer is cross-linked, and (iii) about 7 percent by weight to about 30 percent by weight polymeric microsphere shells, wherein the softwood fibers in said paper substrate are predominantly unbleached fibers, and wherein said flexible print coating further comprises at least 10 percent by weight titanium dioxide.