Digital BW, The Print

I missed a day in the forum postings, so my response may be a bit off.


>> I was under the impression that ultrachromes were less archival than
>> other inksets (generations for instance)

My tests show the UC inkset, when printed as a B&W, is about as good as it
gets.  This suggests the color pigs are also better than the older 3rd party
color pigments, but I have not tested each color by itself against the MIS
or MediaStreet older color pigments.

Jim wrote:

>... Almost invariably the  PiezoBW/MIS ink warms on
>almost every paper I tried.

Yes, I'm convinced now that it is dye burning off and leaving the warm
carbon to show through.  The pure carbon pigments that MIS and Cone now use
do warm a bit, but it's just a fraction of what the old inks did.

> The most stable paper was Eclipse, it beat out photorag.

My older tests found this also.  The latest one makes it look like the
situation is reversed with the all-pigment inks.  Eclipse showed/caused
relatively high warming of the inks.

>... previous tests with MIS ink would show warming that was
>MUCH more obvious at a glance in 1/3 to 1/2 the exposure time.

Yes, serious warming is a thing of the past.  We won't miss it.

Also, relating to the 1280 clogs, etc., we won't miss the co-solvent inks.
The co-solvent appears to evaporate faster (and through the CIS tubing),
causing more that it's fair share of trouble.  The new high-load black can
achieve the same level of black with better lightfastness and no co-solvent.

Paul
http://www.PaulRoark.com