Digital BW, The Print

"dmet2006" <dmet2006@...> wrote:
>
> I'm in a good way..
> I'm finally taking good b&w prints through the r2400 and epson velvet fine art a canon 175gr matte and the quadtone rip software.
> 
> I'm wondering if the third party carts in our local market have pigment ink inside.I didn't buy them but it cost the half (epson 13¤, the others 6-7¤).


It's possible they are pigments, but pigments vary in quality.

The cheapest inks are probably bulk ink, purchased from one of the on-line suppliers like www.InkSupply.com.

To determine the relative lightfastness, check the tests at http://www.aardenburg-imaging.com/.  I believe none of the third party suppliers have color pigments that are as lightfast as the manufacturer's color pigments.  On the other hand, the carbon pigments of the third party suppliers can be excellent. 

> Also I have to read how to linearize profiles..

A meter designed for that is best, but flatbed scanners can be used.  See http://www.paulroark.com/BW-Info/Making_B-W_ICCs-GrayCard.pdf and the QTR StepWedge tool.

Good luck with your B&W.

Paul
www.PaulRoark.com
http://www.paulroark.com/BW-Info/