substantivity

plural substantivities

1. The state of being substantive.
2. The ability of a chemical or dye to stick to a target.

   http://chlorhexidinefacts.com/mechanism-of-action.html Protein bound chlorhexidine releases slowly leading to prolonged activity. This phenomenon is known as substantivity and allows for a longer duration of antimicrobial action against a broad spectrum of bacteria and fungi.

   1 more example

   The term substantivity refers to the ability of a dye to transfer from a solution onto a textile fiber and to "set".

   2015, Richard Blackburn, Sustainable Apparel: Production, Processing and Recycling, Woodhead Publishing, page 140