| 摘要 |
PURPOSE:To obtain a recording material excellent in color developing properties for an ink, having high resolution and capable of forming a recorded image resistant to water and light, by incorporating a copolymer of diallylamine, acrylamide and, optionally, other vinyl monomer copolymerizable therewith, in a base or in a coated layer provided on the base. CONSTITUTION:Based on monomer units constituting a polymer, the molar ratio of diallylamine is preferably 0.15-0.95, whereas the molar ratio of acrylamide is preferably 0.05-0.85, and the molar ratio of other vinyl monomer copolymerizable therewith and not containing a carboxyl group is 0-0.3. The polymer includes a salt of a diallylamine copolymer, and the salt may be either an inorganic acid salt or an organic acid salt. The amount of the polymer is preferably 0.05-10g, more preferably 0.1-5g, per m<2> of the base. |
