My personal technique using chine collé with traditional and innovative etching methods is the following.

To start out with, I give the first tones to the copper plate by using etching, drypoint, aquatint, softground or roulette, pulling my first color. With these first impressions, I usually work back into the plate with the scraper, burnisher and emery paper to enhance the lights and accent the motif.  I then go on to the second color. I usually print on the paper which best suits my work, this is a thin Japanese washi paper known as Kozo mulberry paper. With continuous alterations to the plate, I print a sequence of black, yellow, red and blue passing the same plate through the press four times for each design and color change. Finally, I apply glue to the back of the washi paper after completing the above-mentioned process (CMYK* printing) and pass it through the press with a dry heavier rag paper (BFK Rives, Arches or Somerset, etc.) beneath.

*Cyan, Magenta, Yellow and Key (Black)