| 摘要 |
PCT No. PCT/JP85/00211 Sec. 371 Date Dec. 20, 1985 Sec. 102(e) Date Dec. 20, 1985 PCT Filed Apr. 17, 1985 PCT Pub. No. WO85/04841 PCT Pub. Date Nov. 7, 1985.A pressure sensitive copying paper comprising a sheet having on a support a coating layer containing finely divided cellulose powder (a) and mononucelus microcapsules (b) containing an oil solution of an electron donative colorless or light-colored dye, using an amino resin as film material and having a volume-average particle diameter of 5-10 microns ( mu m) and a film thickness of 0.08-0.3 microns ( mu m); and a sheet having on a support a coating layer containing an electron acceptant solid-state acid material which is reacted on contact with the dye to form a color. This pressure sensitive copying paper has the advantages such as excellent color forming performance, proofness against smudging, long-time storage stability, etc. |
