Stock material or miscellaneous articles – Ink jet stock for printing – Physical property of ink receptive layer specified
Reexamination Certificate
2005-10-11
2005-10-11
Shewareged, B. (Department: 1774)
Stock material or miscellaneous articles
Ink jet stock for printing
Physical property of ink receptive layer specified
C523S160000, C523S161000, C524S556000, C524S590000, C524S601000, C524S577000
Reexamination Certificate
active
06953613
ABSTRACT:
A pigment-based ink jet ink set and image-recording element combination is described, wherein the ink jet image-recording element has a gloss value of at least 5 when measured at 60°, and wherein each ink in the ink set has a normalized differential specular reflectance, NΔRS(X), of less than 1.25. NΔRS(X) is defined as the maximum value within a set of NΔRS(Xn) values in which each NΔRS(Xn) is the normalized specular reflectance for a density patch of a printed test image. The printed test image consists of a series of at least eleven density patches printed such that the ink laydown of the patches increases incrementally, from no ink laydown to a maximum level generating a density of at least 1.5; and wherein NΔRS(Xn) for each patch is determined according to:N Δ RS(Xn)=[RSmax(Xn)-RSmin(Xn)]RSmean(Xn)where, over the visible spectral region between 390 nm and 720 nm for patch Xn, RSmax(Xn) is the maximum, RSmin(Xn) is the minimum, and RSmean(Xn) is the average specular reflectance.
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Klingman Karen J.
Reem Richard C.
Eastman Kodak Company
Meeks Roberts Sarah
Shewareged B.
Wells Doreen M.
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