| 摘要 |
PURPOSE:To improve a printing fog sharply and to obtain the recording material which is excellent in a workability, by a method wherein a copolymer alkaline salt of anhydrous malein acid and vinyl monomer is contained in a micro capsule layer. CONSTITUTION:In recording material for reproduction in which the micro capsule layer containing a coloring agent is applied on one side surface of a paper, and a developer is coated on the other surface, preferably 2-15 weight parts of a copolymer alkaline salt of an anhydrous malein acid and a vinyl monomer (perferably isobutylene), based on a solvent containing the coloring agent, is contained in the micro capsule layer. A neutralization degree of said copolymer is preferably 0.3-1.0 (full neutralization), and alkaline salt obtainable is used as a water-soluble resin. |
