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Thank you, Khaimraj, for such interesting and specific information on pigments as well as a unique historical perspective.
I recently read in some Gamblin literature that phthalocyanine is used in printing today for cyan, particularly because it is so stable (old printing tends to turn blue, as the other colors fade first).
I did not know about a one-color black drying faster than a mixed black, at least in color printing inks (although it makes sense as you explain it). I have seen printing samples (as along the edges of the proofs of printed materials or, I believe, on the inside flaps of cereal boxes etc.) that show a one-color black to be blacker than a three-color black: As was your main point, it is the selection of pigments that determines the particular properties of their mixtures.
According to the scientific theories of color, a cyan-yellow-magenta color scheme in pigments should be ideal (complementing -- that is, absorbing -- the red, blue, and green primary colors of light); but it typically doesn't seem workable in practice, for mixing clean colors.
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