Digital BW, The Print

Hi Paul,

I'm curious and have been meaning to ask this.

Are the MIS inks waterproof (resistant, whatever) on a paper such as 
Epson Premium Lustre, as are the Epson UC inks?

I can take an R800 print on EpPrmLstr, hold it under water, rub my 
fingers over the paper surface and the inks don't move.

Now, obviously, you can't do that with the HP dyes and their papers.

Thanks,

Scott


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" 
<paul.roark@v...> wrote:
> > HP Premium Plus Photo Glossy, Satin (formerly Matte) and High 
Gloss.
> > 
> > Those will give the longevity that we all desire, especially when 
> > nput behind glass.
> > 
> 
> This caught my eye, and I couldn't resist re-posting part of the 
fade test I
> did in March.
> 
> 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 
starting and
> ending spectrophotometer readings:
> 
> 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