| abstract |
The invention provides an ink film construction comprising: (a)a first printing substrate selected from the group consisting of an uncoated fibrous printing substrate and a commodity coated fibrous printing substrate; and (b)an ink film having an ink dot set contained within a square geometric projection projecting on said first printing substrate, said ink dot set containing at least 10 distinct ink dots, fixedly adhered to a surface of said first printing substrate, all said ink dots within said square geometric projection being counted as individual members of said set, each of said ink dots containing at least one colorant dispersed in an organic polymeric resin, each of said dots having a diameter of 5 to 300 micrometers; each ink dot of said ink dots having a generally convex shape in which a deviation from convexity, (DCdot), is defined by: DCdot = 1 - AA/CSA, AA being a calculated projected area of said dot, said area disposed generally parallel to said first fibrous printing substrate; and CSA being a surface area of a convex shape that minimally bounds a contour of said projected area; each ink dot of said ink dots fulfilling a structural condition wherein, with respect to a direction normal to the surface over all of said calculated projected area, the ink dot is disposed entirely above said calculated projected area; wherein a mean deviation from convexity (DCdot mean) of said ink dot set is at most 0.05. Figure 2A Figure 2B Fwrure 2C |