Digital BW, The Print

> So, does that mean that other patented head configurations, 
>like the Iris for example, are incapable of using the 
>high-stability pigment inksets?

I've been lead to believe that it is one of the major factors.

The Iris used rather fast-fading dyes.  That is why among some high end
galleries I spoke with, the "Giclee," which is associated with the Iris, got
a bad reputation.  That is one of the many reasons I avoid the use of that
term.

> HP is certainly doing something interesting with pigments in their 
>thermal printers to achieve such ratings.

It may be that the main factor is currently the swellable paper.  What that
does is pull the dye down into a chamber, where dries in more of a
particulate form and is also protected by the paper emulsion.   It's, in
effect, an encapsulated quasi-pigment particle (my terminology).

Ultimately, the chemistry of mordants -- the substances that absorb or react
with the dyes to make these quasi-pigments -- also holds great promise.
Consider a 2-component, epoxy-like rock embedded in an emulsion that has
also become very hard.  I think the potential is immense.  (I'm so glad to
see Carly get fired.  Go to it HP inkjet tech guys!) 

I think we'll benefit greatly by these big guys competing fiercely.  Canon
is also not to be counted out.  These are some impressive players, and we
benefit.

One thing I like about the pigment approach, however, is the ability to use
the traditional cellulose papers.  I still think carbon on cotton is the
combination to beat.  That may not always be the case.

Paul
www.PaulRoark.com 





> 
> John
> 
> 
> 
> 
> -Apparently one thing that limits the non-Epson desktop printers in this
> regard is the viscosity of the inks. The piezo-electric head that Epson
> has
> rather well protected with patents may be the only one that can pump the
> high-viscosity base needed to keep high loads of larger particles in
> suspension.
> 
> 
> 
> 
> 
> 
> 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
> 
> 
> 
> 
> 
>