Patent AU-2020200938-B2 (AU)
Title: Ink film constructions
Inventor: LANDA BENZION
IPC: C09D11/02
Filed: 2020-02-10
Granted: 2021-07-29
Abstract: OF THE DISCLOSURE 
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.
2/27 
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