Ink, ink-jet recording process, and instrument using the ink

摘要

Provided in an ink comprising a recording agent and a liquid medium capable of dissolving or dispersing the recording agent, wherein said ink comprises a triol selected from the group consisting of the following (a) to (c): (a) a straight-chain triol having 5 carbon atoms; (b) a compound of the formula <IMAGE> (I) wherein any three of A1 to A5 each represent a hydroxyl group, and the remaining two each represent a hydrogen atom, or a branched triol having 6 carbon atoms; and (c) a triol having 7 or more carbon atoms.