| 摘要 |
PURPOSE:To obtain the titled set excellent in whiteness and plasticizer resistance, by combining an upper sheet provided with a specified singular pressure- sensitive copying layer and a microcapsule layer and a lower sheet provided with a layer comprising an electron-acceptive color developer or an electron- donative color former. CONSTITUTION:A singular pressure-sensitive copying layer constituted of a chelate base recording material consisting of a combination of an organoiron (III) compound and a ligand compound is provided on the face side of a sheet, and a microcapsule layer containing an electron-donative color former such as 3,3-bis (p-dimethylaminophenyl)-6-dimethylaminophthalide or an electron-acceptive color developer such as a p-phenylphenol formaldehyde polymer is provided on the back side of the sheet to constitute a singular pressure-sensitive copying upper sheet. On the other hand, a layer comprising an electron-acceptive color developer or an electron-donative color former dependently on the composition of the microcapsule layer is provided on the surface of a sheet to constitute a lower sheet. The upper sheet and the lower sheet are combined with each other. |
