I've only recently come across this thread and was interested in the discussion of the so-called "pinatype" dyes. Unfortunately, the 1911 article which discusses the dyes does not use modern nomenclature, so other than dyes with classic names such as eosin, it is very difficult to determine which dyes were tested. Capstaff in his original patent, US 1196080, describes the dyes as "acid (preferably the salt of a sulfonic acid)". As near as I can tell the dyes in the Kodak dye transfer method, Acid blue 45, Acid red 80, and Acid Yellow 11, all have a sulfate group and are acid dyes. Therefore they might fit the requirements of Capstaff's patent. It is logical that dyes suitable for relief matrices would also work with planographic matrices.

The Capstaff patent, however, mentions one critical step necessary for a planographic matrix: the gelatin must be dried out before being immersed in the dye bath. As a side-note, the original processing for the Godowsky and Mannes dye-coupler Kodachrome required that the film be dried out thoroughly before being immersed in the bleach bath. This allowed the controlled diffusion of the bleach into just the outer, (yellow), or outer two, (yellow and magenta) layers. Godowsky and Mannes might have been familiar with the Capstaff process before inventing their controlled diffusion bleach system.