Digital BW, The Print

> > With respect to glossy inks, I've found the UC base 
> > produces terrible bronzing.  
> 
> Interesting, I've tried your ut3d and with glossy paper 
> it has really less bonzing of what I aspected ...
> Is it caused by glop used to diluite?

Yes.  Glop is the base that is used in all MIS UT B&W inks.  It is 
one of the primary reasons for their generally very good performance.

 
> > With respect to Eboni dilution, the UC base produces 
> > images that band (see 1600 dpi scan at
> >   http://www.paulroark.com/BW-Info/Base-comparison.jpg 
> > and are warmer than the base I recommend for Eboni dilution.  
> 
> Yes, banding is really visible, is the base you suggest for ebony
> available at inksupply shop?

Not yet, but I hope they'll be able to get it within the month.  


> 
> > Start with MIS PK.

And dilute with MIS glop.


> perfect

> > - blue toner to neutralize and cool tone the print
> > 
> > The blue toner is a mix of cyan and R800 blue or magenta.  If you 
> > have 2 channels, simply using LC and LM works.  
> > That way you can vary the ratio as needed. 
> 
> ... I' m looking for something that can work also on my 
> epson 7600, so I think I'll use one
> channel for ebony five for shades of gray and one toner 
> (may be on 2400 I try the same but with LC and LM to 
> check differences)

Take a very careful look at the the information at 
http://www.paulroark.com/BW-Info/4K+.pdf 
including the materials at page 4.  The bottom line is that I've 
found MIS blended inks (like carbon with blue toner mixed in) 
separate in large format printers.  So, unless you use them all the 
time (as in a service bureau), I think you'll be much happier using 
inks that have only a single pigment type in each in chamber. 

By the way, I did experiments to determine whether there was a good 
solution to the separation.  I found I could control 
which "direction" the ink would drift by the composition of the 
dilution base mix.  So, I could control this for a 2-pigment mix.  
When the third pigment is added, I suspect the ink drift becomes 
uncontrollable.  I gave up on the attempt and instead stopped making 
and recommending any blended inkset for any large format printer.  
Note the this problem does not affect desktop pritners.

Hope this helps.

Paul      
www.PaulRoark.com