PVP has good adhesion properties, can be used as a binder, used in ink, ink can make writing and printing handwriting firmly attached to the paper and not easy to fall off and fade. Moreover, PVP has a good dispersion and stability effect on inorganic pigments and organic pigments dispersions, which can be used for ink and ink to obtain a uniform dispersion system, which is not easy to precipitate, does not block pens and various nozzles, and the depth of writing is uniform. And PVP is non-volatile, its role and function lasting. In particular, the printing or printing equipment will not block the nozzle if it stops running for a long time, and it has smooth and repeated spray writing performance. PVP for inks and inks are generally PVP-K12 to PVP-30 products with lower molecular weight.
