Similar coating done at EK
Here is a similar coating to the one shown in my first example.
I coated this by machine and it was one of the first Dye Bleach coatings I ever did. The process was close to what I used above. However, this machine coating was the result of a lot of experimentation using hand coatings to get the balance of silver and dye correct, and experiments to bind the dye in place.
Even so, this early example shows flaws.
An AhHah moment - Second try.
I ran the first attempt posted here, on Strathmore paper, and thought that the paper fibers might be absorbing some chemicals and might also be reacting erratically. So, I repeated the experiment on Baryta paper. This scanned image still shows a bit of the negative image which is not apparent to the naked eye. Also, the hue shift across the paper is not very evident to the eye. It appears as more of a density change. So, the original looks better. Again, using PS tools I can make it look more like the eye sees it, but I think that the raw scan is the only fair way to post the example.
There is some mottle in the high density areas. IDK if that is in the silver or dye or bleach part of the overall sequence.
The original silver image is very sharp! The lack of sharpness in the final image indicates that there is too much silver, or too much phenazine or that the "system" needs a competer or a scavenger. Wandering phenazine in excess can drastically decrease sharpness.
You can see how sensitive any color system is!
Sequence at 20 deg C is as follows:
Develop 1' Dektol 1:3
Fix in Kodak Hardening Fixer (alum).
Dry to examine the results
........................< Dye step tb posted later
Dye Bleach 4'
RA4 blix 1'
A 2-Color Monopack by the Dye-Bleach Method
From Friedman's chapter on 'Gasparcolor and Silver-Dye Bleach':
The preparation of a monopack suitable for two-color work, has also not been overlooked (USP 2028279). But instead of coloring each layer with a single dye, two are used. Thus the orange-red layer will contain pyramine orange and azo fuchsin, or azo fuchsin and mordant yellow, while the green layer will contain benzo pure blue and pyramine orange or benzo pure blue and metanil yellow. The rate at which the two dye components are acted on by the bleach solutions varies with the dyes. Thus it becomes possible to obtain dichroic effects in each layer, orangy highlights with deep red shadows in the orange-red layer, and sky-blue highlights with deep green shadows in the other. It becomes possible in this manner to obtain pleasant flesh and sky renditions, and at the same time, maintain true blacks in the middle tones & shadows. Such a process could be termed "two and one-half color."