Digital BW, The Print

I think we should all chip in and buy Clayton a spectrophotometer so that he
can express the results of his considerable testing in a more informative
manner.


> From: Clayton Jones <cj@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Sun, 29 Jan 2006 20:35:49 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] Re: more paper news
> 
> 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.  
> 
> I've been conducting windowsill tests (getting some direct sunlight
> every day) for over two years now (in S. Florida which technically is
> in a sub-tropic latitude) and the results are revealing:
> 
> Epson dyes - showed fading in a few weeks.
> Septone - showed fading between two and three months.
> Early UT7 - showed fading between five and six months.
> New UT7 - almost one year (Feb 8th), no fading.
> 2200 UC (grayscale print w/ color inks) - showed color shifting at
> around 1.75 years (turning pinkish purple) - is now at 2.3 years and
> continuing to get worse)
> Eboni BO - 2.25 years (Feb 5th), no fading.
> K3 - four months, no fading or color shifting.
> 
> Of course we don't have any scientific numbers so we can't begin to
> translate this into years of life framed under glass with room light.
>  But armed with these results would anyone in their right mind decide
> to use Septone inks?
> 
> I think Shilesh's test was very revealing.  Anything that would fade
> on a windowsill in 4 weeks should not be considered archival.
> 
> Regards,
> Clayton
> 
> 
> Info on black and white digital printing at
> http://www.cjcom.net/digiprnarts.htm
>