Digital BW, The Print

Hello,

The following is a quote from Inkjet Village marketer of Nanochromes 
re a query about the lack of information re longevity on their 
website.

"Due to technical issues (test samples where improperly prepared) the 
test has been re-commissioned and will be conducted between two 
independent Universities; one in the U.S. and the other in Europe. In 
the meantime we have received a  large amount of feedback from users 
and consumers interested in NanoChrome who requested comparisons with 
K3 inks and other 3rd party inks on a variety of substrates including 
fine art and photographic medias; due to this and the fact that the 
tests need to be repeated anyway we have decided to expand the scope 
of the tests to compare Nanochrome to Ultrachrome K3®, and other 
leading 3rd party inks in addition to Ultrachome®. While the 
consequences of further delays in delivering promised data are well 
understood, InkVillage is confident that ultimately the facts will 
speak for themselfs and any doubts will be dissolved"

Will be interesting to see what they publish.

Paul Hathaway


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Ernst Dinkla 
<E.Dinkla@c...> wrote:
>
> Clayton Jones wrote:
> > Scott, Walt,
> > 
> >> In the "test" Shilesh performed the Epson dyes faded, the 
> >> Nanochromes faded, the Ultrachromes didn't. 
> > 
> > I have to agree with Walt.  The test does have some validity 
because
> > of the other control prints.  If two fade and one doesn't under 
the
> > same conditions, then that says a lot about the relative merits of
> > those inks.  
> 
> It may have been a quick and dirty method of testing that
> Shilesh has used but it still is a warning to stay away from
> dye inks if longevity is an issue. There's no proof either
> that the inks will sustain the more Wilhelm like tests better
> than Epson dyes do. Shilesh indicated before he gave the
> numbers that the test wasn't that scientific.
> 
> The Nanochromes were not advertised as a replacement for Epson
> dyes, they aimed higher but they were worse than the Epson dye
> inks in Shilesh test. It would be a remarkable ink chemistry
> if they performed at UC level in for example the Wilhelm test.
> Gas fading isn't a good quality either if that was causing
> the shift in Shilesh test.
> 
> It would still be a good idea if more DIY tests are done given 
> the lack of any good tests done by reputed laboratories. I'm 
> glad we have left the Dmax and gamut only stadium left behind 
> and get a wider perspective. The next stage is the paper/ink 
> compatibility issue. At best we get a HP dye/paper quality 
> with all the limited choices possible in that scheme, at worst 
> Epson dye/paper quality, something that was possible 2 years 
> ago. All very predictable steps and a shame that early 
> adopters have to do the experiments because the company 
> doesn't do the testing or isn't revealing the test results. 
> Even more shame that the Guinea pigs are getting bad treatment 
> by bystanders because their test methods are not up to standard.
> 
> Ernst
> 
> 
> 
>                     --
>            Ernst Dinkla
> 
> 
> www.pigment-print.com
> (         unvollendet         )
>