Digital BW, The Print

Shilesh, actually it was the very original Piezotone K ink that lead
to the developement of Museum Black and Portfolio Black. Then there
were actualy three K inks available from them, these two mentioned,
and the original which was renamed Black Black, I believe. Though it
was the blackest it was also the least stable and has since been
dropped from the product line.
Those original problems are not related to the product now called
Portfolio Black.
Tyler

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Shilesh Jani"
<shilesh.jani@s...> wrote:
> Jenny,
> 
> About 18 months or so back, the issue of Portfolio Black fade 
> resistance was discussed intensively on this forum. Try the search 
> function and you may find lots of information. If I remember 
> correctly, this controversy lead to the development of "museum" black 
> by Piezography. A lot of PiezoTone users had switched their black 
> inks to MIS Ebony because of this issue.
> 
> In short, this is old news.
> 
> Shilesh
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "byushooter" 
> <jellerbe@j...> wrote:
> > I was just reading these tests of piezo inks 
> > (http://www.livick.com/method/inkjet/pg2K.htm) and was wondering if 
> > anyone here is concerned about using the portfolio black ink?  I
> > think I read on the inkjetmall website that over time it should 
> fade 
> > to the approximate density of museum black but these tests makes it 
> > look much worse.  Any thoughts?
> > 
> > Jenny