You are talking about two bleach process at your last post. First applied to positive film , turns some to new chemical and if I am not wrong harden the gelatin.
You apply dye after all. Dye and new chemicals reacts together and give a brighter color.
Than again , a newer bleach to remove the silver.
Why first bleach does not react with all silver ? As I understood , after first bleach , there would be two compounds remains in emulsion , A- Silver B - Potassium Iodide
And ,you dye the potassium iodide proportional to silver image.
And you apply the second bleach and silver gone.
Why first bleach does not remove the all silver image ?
Are they different formulas , first and second bleaches ?
Can I use many dye mixtures to form the color monochrome with react with potassium iodide ?
After this discussion , We can go in to Technicolor 2 dye process.
I will reread the patent and report here.