Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Greg" <dfaprinting@...> wrote:
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Bob Mertlich"
> <b_mertlich@> wrote:
> >
> > I've been using OCP now for over a year on the epson 4800 and just
> recently the 4880. I 
> > couldn't be happier with the results. The basic hue's are different
> than the epson claria  
> > inks but they profile beautifully. As for fade the ocp dye inks hold
> up well. I work in an 
> > industry that gives me access to fade testing equipment and on my
> latest inks (all dye) I 
> > have tested them and claria inks side by side using a xeon lamp for
> 8,16,24,48,96 hrs 
> > (step gauge) and it compares well with claria ink. So far my black
> and whites are fairing 
> > well with no noticeable color shifts from my displayed and control
> prints. Just my two 
> > cents and no I didn't get free ink from them for my testing.
> > Happy Printing
> > Bob
> > 
> 
> 
> What are you doing for the light and light light black inks? I didn't
> see those listed in the "new" dye inks.

I mix my own LLB and LB. LLB is 10cc of black to 180cc of clear base.
LB is 35cc black to 180cc clear base.
> 
> OCP is still crying that they can't send me anything except 500ml
> each, and those would be more than $200 from Germany. So apparently
> contacting their USA rep doesn't do any good since they really don't
> want to do much in the USA.

I'm getting 32 oz of 6 colors for under $200. But I've spent twice that to test ink sets and 
have found a few good ones. My problem has been consistency and so far OCP inks have 
had a consistent hue.

> 
> And next time you are going to fire up a fade test on other materials,
> might be nice if you would toss in a Blue Wool card from
> http://www.conservationresources.com/Main/section_20/section20_20.htm
> and make a note of how many hours it takes to fade each patch. I've
> found numbers for a Q-Sun machine here, would be good to know how your
> machine compares
> http://www.ipa.org/files/08-IPA-Digital-Print-Forum-Addendum-1_2.pdf
> 
> If you had the room to put that card in so your employer doesn't have
> the cost of a special test, the lamps can't be cheap and neither is
> the electricity to run it.
>
Actually the test is done off site and I piggy back it with litho ink testing. The lamps are 
xeon lamps and they are expensive. Next test goes out I'll check if they have room and 
cost factors involved. Maybe if there is room I can pull a favor or two. But in any event side 
by side tests don't tell me how long an ink will last just how well it compares to another 
one, and in this case claria.

Have fun
Bob