The ink receptivity of paper may be described as its ability to allow the transfer of inks from printing surfaces. The amount of ink required to achieve a particular degree of color intensity in printing is associated both to the paper and to the ink. One cannot speak of the absolute ink absorbency of a particular paper, but rather of the receptivity of that paper for particular kinds of ink.
The quality of the ink and the surface characteristics of the paper are both significant in shaping the amount of ink used to give the preferred result. In general, the smoother and denser the paper, the less ink required. In printing papers, the nature and allocation of the fillers influences the print ability with a given ink, depending on the ease with which the filler is wetted by the vehicle of the ink. The outcome of filler as an absorptive component of papers is also shown by the fact that the wire sides of most filled papers require less ink than the felt side, even though the felt side is normally smoother and less porous.
In coated papers, the quantity of coating, the types of adhesive and pigment, and the pigment/binder ratio all influence the ink receptivity. The relations here are quite involved and one cannot conclude ink requirements merely by referring to the chemical and physical characteristics of the paper and ink. In any case, the ink films transferred to paper are so thin that the paper's surface absorbency or ink receptivity can play an imperative role in ink drying.
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