Patent ID: 7569104

Claim:
An ink for ink-jet recording containing a 1,3-propanediol derivative being one or more selected from the group consisting of: (a) 2-methyl-2-propyl-1,3-propanediol in an amount of 0.1 to 2.0% by weight; (b) 2,2-dibutyl-1,3-propanediol in an amount of 0.1 to 1.5% by weight; (c) 2-butyl-2-methyl-1,3-propanediol in an amount of 0.1 to 5.0% by weight; and (d) one or more adducts selected from the group consisting of an ethylene oxide adduct of 2,2-dibutyl-1,3-propanediol and a propylene oxide adduct of 2,2-dibutyl-1,3-propanediol, said one or more adducts being present in the ink in an amount of 0.1 to 5.0% by weight.