Patent ID: 8665493

Claim:
A paper product having at least one ply, a basis weight of greater than 18 g/m 2 , and having indicia disposed thereon, said indicia comprising L*a*b* color values, said indicia disposed upon said paper product being defined by the difference in CIELab coordinate values disposed inside the boundary described by the following system of equations: { a*=− 54.1 to 72.7; b*= 131.5 to 145.8 }→b*= 0.113 a*+ 137.6 { a*=− 131.6 to −54.1 ;b*= 89.1 to 131.5 }→b*= 0.547 a*+ 161.1 { a*=− 165.6 to −131.6 ;b*= 28.0 to 89.1 }→b*= 1.797 a*+ 325.6 { a*= 3.6 to −165.6 ;b*=− 82.6 to 28.0 }→b*=− 0.654 a*− 80.3 { a*= 127.1 to 3.6 ;b*=− 95.1 to −82.6 }→b*=− 0.101 a*− 82.3 { a*= 72.7 to 127.1 ;b*= 145.8 to −95.1 }→b*=− 4.428 a*+ 467.7 where L* ranges from 0 to 100; and, the CIELab coordinate values disposed outside the boundary described by the following system of equations: { a*=− 41.2 to −29.0 ;b*= 3.6 to 52.4 }→b*= 4 a*+ 168.4 { a*=− 29 to −6.4 ;b*= 52.4 to 64.9 }→b*= 0.553097 a*+ 68.4398 { a*=− 6.4 to 33.4 ;b*= 64.9 to 42.8 }→b*=− 0.553097 a*+ 61.3462 { a*= 33.4 to 58.0 ;b*= 42.8 to 12.5 }→b*=− 1.23171 a*+ 83.939 { a*= 58.0 to 25.8 ;b*= 12.5 to −28.2 }→b*= 1.26398 a*− 60.8106 { a*= 25.8 to −9.6 ;b*=− 28.2 to −43.4 }→b*= 0.429379 a*− 39.278 { a*=− 9.6 to −41.2 ;b*=− 43.4 to 3.6 }→b*=− 1.48734 a*− 57.6785 where L* ranges from 0 to 100; and wherein said indicia has a dot gain of less than 20% and a 1:1 relationship between input halftone density and output halftone density.