DECORATIVE SHEET MADE OF SYNTHETIC RESIN HAVING REVERSIBLE DISCOLORATION PROPERTIES

摘要

PROBLEM TO BE SOLVED: To provide a decorative sheet made of a synthetic resin having reversible discoloration properties of which the coloration state is changed between solar rays in the daytime and a three-wavelength region emission type fluorescent lamp or the like in the nighttime and the hue change is large. ;SOLUTION: A decorative sheet made of a synthetic resin having reversible discoloration properties is characterized by that a printing part comprising ink, which is prepared by compounding ultrafine particles with a mean particle size of 5-200 nm of rare earth element oxide represented by general formula M2O3 (wherein M is Ho, Nd or Pr) with a transparent resin binder, is provided on the surface of a synthetic resin sheet.;COPYRIGHT: (C)2001,JPO