Digital BW, The Print

I remember seeing this conversation some months back but cannot find it by searching the forum. I'm hoping someone can give me a link.

It concerned have two slots with the same MK (might have been PK) inks, and having the second one follow the curve of the first one, I think, and somehow achieving a deeper black.

Can someone please point me in the right direction?

This might have been in the QTR group, so I will post this there, too.

dk

Paul,

Exactly the paper I am using. Can you give me a link to that thread?


David Kachel

_________________________

Artist-Photographer
Fine B&W Photographs & Photogravures

WEBSITE: www.davidkachel.com
BLOG: thetransparentphotographer.com
EMAIL: david@...

PO Box 1093
Bisbee, AZ 85603
(520) 366-4181

From:  <DigitalBlackandWhiteThePrint@yahoogroups.com> on behalf of "Paul
Roark roark.paul@... [DigitalBlackandWhiteThePrint]"
<DigitalBlackandWhiteThePrint@yahoogroups.com>
Reply-To:  <DigitalBlackandWhiteThePrint@yahoogroups.com>
Date:  Thursday, August 31, 2017 at 1:03 PM
To:  DigitalB&WPrint <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject:  Re: [Digital BW] Using two MK or PK inks

The only time I find I need 2 MKs is for Arches watercolor paper.  I doubt
you'll see any difference in dmax on inkjet paper between 1 and 2 MK
positions.

It concerned have two slots with the same MK (might have been PK) inks, and having the second one follow the curve of the first one, I think, and somehow achieving a deeper black.

Can someone please point me in the right direction?

I experimented with profiles of that type, i.e. using two or more of the PK inks in different slots and then having all of the curves follow the K. My work was aimed toward digital negatives, and the goal was to smooth the grain by overlapping ink deposits with drops from as many nozzles as possible, using inks in all the nozzles with the same UV blocking. With that kind of profile you can control the transmission density range by simply increasing or decreasing all of the inks of the same kind by the same percentage.

The concept worked extremely well in practice, though I eventually moved my experiments with profiles for digital negatives in a new direction.

Sandy

Thanks, got it.


David Kachel

_________________________

Artist-Photographer
Fine B&W Photographs & Photogravures

WEBSITE: www.davidkachel.com
BLOG: thetransparentphotographer.com
EMAIL: david@...

PO Box 1093
Bisbee, AZ 85603
(520) 366-4181

From:  <DigitalBlackandWhiteThePrint@yahoogroups.com> on behalf of
"ssanking@... [DigitalBlackandWhiteThePrint]"
<DigitalBlackandWhiteThePrint@yahoogroups.com>
Reply-To:  <DigitalBlackandWhiteThePrint@yahoogroups.com>
Date:  Thursday, August 31, 2017 at 3:08 PM
To:  <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject:  Re: [Digital BW] Re: Using two MK or PK inks

For my personal work I developed a partionned system based on an all gray
custom inkset using 8 shades of gray. The profile, and directions for mixing
inks, is described in a folder the Files section of the QuadtoneRIP forum.
It is the Carbon 950 profile.

Paul,

I either never heard back from you or somehow missed it. I have a 3800 and a
3880.

David Kachel

_________________________

Artist-Photographer
Fine B&W Photographs & Photogravures

WEBSITE: www.davidkachel.com
BLOG: thetransparentphotographer.com
EMAIL: david@...

PO Box 1093
Bisbee, AZ 85603
(520) 366-4181

From:  <DigitalBlackandWhiteThePrint@yahoogroups.com> on behalf of "Paul
Roark roark.paul@... [DigitalBlackandWhiteThePrint]"
<DigitalBlackandWhiteThePrint@yahoogroups.com>
Reply-To:  <DigitalBlackandWhiteThePrint@yahoogroups.com>
Date:  Thursday, August 31, 2017 at 1:51 PM
To:  DigitalB&WPrint <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject:  Re: [Digital BW] Using two MK or PK inks

I have no idea where the thread is.  Let me know your printer and I'll see
if I have some sample profiles I can send you offline if they are not in one
of my PDF- linked zip files.