After making the ink the suffering record material come in contact

摘要

PURPOSE: To obtain an ink which can be applied to any desired recording material, gives a weather-resistant record with a good print quality, and is suitable for ink jet recording by using a water-sol. resin and a water-sol. monomer as the essential components. ;CONSTITUTION: An ink is prepd. by dispersing or dissolving a pigment, a water- sol. resin pref. having a wt.-average mol.wt. of 3.000=30,000, a water-sol. monomer which solidifies when it receives energy (e.g. an ultraviolet-polymerizable monomer, pref. an acryic or epoxy monomer), and a photopolymn. initiator in an aq. medium. A dye may be jointly used with the pigment, pref. in a wt. ratio of (8:2)-(2:8). The ink is applied to a recording medium by ink jet method and cured by exposing to ultraviolet rays, heat, or an electron beam.;COPYRIGHT: (C)1995,JPO