Digital BW, The Print

"Paul" <roark.paul@...> wrote:
>
> I've found the 2:1 dilution of HP PK with MIS glop (33% PK, 67% Glop) at 100% with QTR has a higher dmax than the 100% HP PK, no bronzing, and no more overnight dry-down than the 100% HP PK.  On Canson Baryta, the next day 33% HP/67% Glop is at 2.49 density, and best 100% HP PK, using a boost to 80% with QTR, is at 2.3. ...

> The numbers suggest to me that a 1:1 mix may be even better. ...


The 1:1 dilution of HP Z3100 PK with MIS Gloss Optimizer resulted in a next day Canson Baryta dmax of 2.56.  There is no visual difference between the 50% and 33% dilutions on Canson, but on Red River Metallic the 1:1 hits 2.56 at 65%. As such there is not the heavy build up of ink on the surface, so on the metallic it looks better.  The dyes still look better on the Red River Metallic.

I did not change the "light" ink from the 1:2 mix.  It's interesting that in a QTR profile that used/partitioned the 33% and 50% dilutions, with an ink limit of 55 for both, black boost to 65, the pre-linearized Lab L was close to a straight line.

Paul
www.PaulRoark.com