Digital BW, The Print

Jon,

 
> What exactly do you mean by old and new PK? Is the new PK the ink they
> are selling as PKN? Or is it simply a new formulation of their regular
> UT7 PK? My current bottle of PK was purchased in January, would that
> make it the old or new PK?

The entire line of MIS UC-equivalent and UT inks has been upgraded.  The new
base I've mentioned is also in the LK and PK.  (No change to Eboni.) I have
not even obtained a full set yet.  If the ink is older than one month, it's
probably the old base.  

See the MIS news post at:

http://inksupply.info/index.php?_a=announcements&_m=details&_i=56

and the link to 

http://www.inksupply.com/arcink_mispro.cfm

where the advantages of the new MIS "Pro" inks are described.

These include the following claims: "Higher gloss and reflectivity, less
bronzing," & "Elimination of gloss-differential. Colors and Blacks have the
same reflectivity."

While the gloss is still not quite as high as the acrylic-coated, latest
Epson UC pigs, it's much better than the older MIS inks, especially as it
relates to the PK.  At least that is my impression from the samples I've
seen.  

But, like I said, I have not seen the full set yet myself.  I have some new
UT 2 samples of the light inks, where the old base was most evident.  There
what I notice most, since there never was a problem with dulling down, is
the lack of bronzing.

Paul
www.PaulRoark.com 

> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
> <paul.roark@v...> wrote:
> > You'll notice that I generate black with the 2 dark grays.  It
> generally is
> > better than at least the old PK.  I think there are several reasons for
> > this.  It allows the tone to be controlled, it has less gloss
> differential,
> > and perhaps 2 jets firing gets better coverage.
> >
> > One reason the MIS PK did not do well was that it dulled down too
> much.  My
> > mixing indicates that the old MIS PK actually had more pigment in it
> than
> > the Epson PK.  In fact, it probably had too much pigment.  That may have
> > contributed to the dulling down problem and be the reason the dark
> grays did
> > better -- they have more base that does a better job of coating the
> carbon.
> > This is one area where the Epson PK acrylic-coated particles paid off
> > significantly.
> >
> > Some of us have tried the Epson PK in an otherwise MIS UT inkset.
> However,
> > what we've found is that the transition from the un-coated to coated
> > particles is visible and gives a rough look to the shadows.
> >
> > The new MIS PK appears to significantly address the dulling-down
> problem.
> > The new base, in effect, coats the particles much better.  I have
> not had an
> > opportunity to test the new PK on various papers, but samples I have
> appear
> > to retain their gloss quite well.
> >
> > Paul
> > www.PaulRoark.com
> >
> >
> > > -----Original Message-----
> > > From: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of
> > > Jonathan Traupman
> > > Sent: Thursday, September 08, 2005 11:27 PM
> > > To: DigitalBlackandWhiteThePrint@yahoogroups.com
> > > Subject: [Digital BW] Weak blacks with UT7 PK and PKN
> > >
> > > I've been doing B&W printing with a 2200 and the UT7 inks for about a
> > > year now and have been getting great results on matte papers with
> > > Eboni black. I drive the printer with Quadtone RIP and build most of
> > > my paper profiles myself with a Noritsu DM-201 densitometer.
> > >
> > > However, I've had very limited success with printing on glossy and
> > > semi-gloss media. The biggest problem I've encountered is that the MIS
> > > Photo Black ink is simply not very dense.
> > >
> > > For example, I'm trying to create a QTR profile for Epson Premium
> > > Semigloss paper. If I print the QTR ink limit file in calibration mode
> > > with all limits set to 100%, the density of the 100% Photo Black patch
> > > is only around 1.9. This is weaker than the densities of the Dark Warm
> > > Gray (2.1) and Dark Cool Gray (2.2) 100% patches. I've actually gotten
> > > better results from profiles that just use the gray inks than from
> > > ones that use PK and the grays, though neither looked particularly
> great.
> > >
> > > I recently ordered a bottle of the "experimental" PKN Photo Black
> > > Neutral ink since MIS claims it has a higher Dmax than regular PK.
> > > However, I neither noticed nor measured any appreciable increase in
> > > density, at least on the Premium Semigloss paper. It is a more neutral
> > > black, however.
> > >
> > > So, is this normal behavior for the MIS Photo Blacks? With the Epson
> > > UC Photo Black, I routinely got densities of 2.2+ with this paper. It
> > > just seems odd that MIS's Photo Blacks would be this weak, when their
> > > grays clearly indicate that they can make a denser ink.
> > >
> > > My search through the archives yielded little info on this topic, but
> > > it does seem that densities around 1.9 are what people have reported
> > > in the past for these inks. Is this true across papers, or is the
> > > Premium Semigloss just a particularly bad choice for the MIS inks?
> > >
> > > The only potential problem that I can imagine with my setup is that I
> > > have put the PK ink in a light black cartridge and am using it in that
> > > position, because QTR allows me to control which black to use in
> > > software, and I have no need for the "Custom Light Black" that usually
> > > goes there because I'm not using the Epson driver. Perhaps the light
> > > black position in the print had incapable of laying down as much ink
> > > as the black position, but I've never heard mention of this.
> > >
> > > I've already tried asking MIS about this, both on their forums and to
> > > their tech support, but received no response.
> > >
> > > Any help would appreciated.
> > >
> > > -Jon
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Please visit the Group Homepage to check the Files, and other
> resources as
> > > they are often being updated.
> > >
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> 
> 
> 
> 
> 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
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