Patent ID: 6572227
Filing Date: 2003-06-03
Classification: C09D

Abstract:
An ink-jet recording method using an ink for ink-jet recording comprising at least, as essential components, a pigment self-dispersible in water, a water soluble organic solvent and water, and carrying out printing with an amount of the ink of 20 ng or less per one droplet, the ink for ink-jet recording satisfying the following conditions (a) to (c):(a) a dynamic contact angle upon dropping 4 &mgr;L of the ink for ink-jet recording on plain paper is about 60Â° or less after one second from dropping; (b) a volume average particle diameter of dispersed particles of the pigment in the ink for ink-jet recording is about from 150 nm to 250 nm; and (c) in the dispersed particles of the pigment in the ink for ink-jet recording, a number of particles having a particle diameter of from 0.5 &mgr;m to 5 &mgr;m is about from 25Ã—104 to 2,000Ã—104 per microlitter, and a number of particles having a particle diameter of 5 &mgr;m or more is about 100 per microlitter or less.