In this experiment we can see how paper chromatography can separate out molecules according to their behavior.
From the al.com
A hydrophobic material, such as wax or photoresist, is laid down into tiny canyons on chromatography paper.
From the sciencedaily.com
To manufacture the tests, a scientist feeds a sheet of chromatography paper into a generic Xerox office printer, which prints a layer of colored wax onto the paper.
From the forbes.com
The percolation of fluids through disordered media, such as petroleum through fractured rock beds, or water through filter paper, such as in chromatography.
From the en.wikipedia.org
Blotting paper is used in chemical analyses as stationary phase in thin layer chromatography.