Digital BW, The Print

I have no idea how my 600 hours tests translate into hours of display life
on the wall.  I leave such predictions to the professionals like Wilhelm.
Frankly, I'm very skeptical of such predicts because the conditions vary so
much.  Also, I suspect their 30% fade end point is too much and does not
tell us what to expect in our real world use of the images.

My experience with the past pigments was that the hybrids (including the
original Piezo and MIS VM generations) claimed very long lives, but the
fading of the dye components showed quickly on the walls.  In my tests the
initial fade was also quick, but after the dyes burned off the rate became
rather linear and much slower.  So, just comparing the end points really
didn't show that the changes were "front-loaded" and would show up quickly.

So, the bottom line is that I mostly do what I call "initial fade" tests and
then only to get comparisons.  I think this allows me to at least select the
best that is available to me with some confidence that they are not being
totally over-hyped.  It also allows me to see which papers do the best.  How
good the Epson Premium Semigloss would do, for example, was a surprise.

Paul
www.PaulRoark.com




 

-----Original Message-----
From: The Wogster [mailto:wogsterca@yahoo.ca] 
Sent: Sunday, December 19, 2004 8:42 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] Which printer for B&W


Paul Roark 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.
> 

Dumb question, How does 600 hours in the tester compare to time on the 
wall?  Prints I am planning, are destined for the wall in the home 
office, this room is at roughly 43° North, and has a north facing 
basement window, so no strong sunlight will hit this wall.  As for HP 
some of the black inks are partly or mostly pigment based, so a BO print 
would be more fast then a colour print.

W



Please visit the Group Homepage to check the Files, and other resources as
they are often being updated.

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

If you wish to receive no emails or just a daily digest, or you wish to
unsubscribe, please edit your Membership preferences by visiting this same
page.

Please follow these basic guidelines:
- As threads develop, trim off excess portions of earlier messages to keep
them short.
- Good manners are required at all time. No personal attacks or flames.
Hostile, aggressive or argumentative users may be removed from the
membership without notice.
- Keep your posts and threads related to the group topic of digital B&W
printing. Users who persistently make off-topic posts may be removed from
the membership.
- By posting on this forum you agree to abide by the group rules and
guidelines, and to abide by the actions and decisions of the group Owner and
Moderators. See “Group Topic, Rules and Guidelines” in the Files section:
http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/

BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT
YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE “OWNER” AND
“MODERATORS” OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY
DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS,
GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  “OWNER” AND
“MODERATORS” OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY
TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR
ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY
THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER
MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.
 
Yahoo! Groups Links