Digital BW, The Print

Paul I agree on the pigments (and am not an HP fan anyway), but was the HP
paper also sprayed with Print Shield?  Other tests have shown that is a
factor also.

Seth

=-----Original Message-----
=From: Paul Roark [mailto:paul.roark@...] 
=
=After 600 hours in my tester, the 50% patch of the Epson 
=Premium Semigloss
=printed with neutral MIS UT inks then sprayed with PremierArt 
=Print Shield
=and HP paper printed with their B&W inkset had the following 
=
=
=Prem. SG start: C = .58, M = .57, Y = .58, Visual Density = .58
=
=After 600 Hr:   C = .58, M = .57, Y = .58, Visual Density = .58
=
=
=HP start:     C = .80, M = .79, Y = .76, Visual Density = .79
=
=After 600 Hr: C = .78, M = .76, Y = .72, Visual Density = .77
=
=So, while the HP B&W dyes may be very good for dyes, and maybe 
=good enough
=for most uses, I don't think they are equal to the good B&W 
=pigments.  How
=all this translates into actual fading in display I don't 
=know.  However, if
=one wants the best B&W digital print resistance to fading, I think the
=predominantly carbon pigment systems are still the way to go.
=
=Paul
=www.PaulRoark.com 
=
=
=
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