Patents Assigned to KIWI CHEMICAL INDUSTRY CO., LTD.
  • Publication number: 20070188866
    Abstract: The hue variable retroreflective sheet of the present invention includes: a surface layer (1) composed of at least one layer; and a plurality of retroreflective elements (3, 4, 5) that are positioned beneath the surface layer, wherein the retroreflective elements (3, 4, 5) retroreflect incident light toward a light source direction, at least one layer of the surface layer (1) is an optical coherent layer that changes in color depending on a point of view, and in which an optical coherent coloring material with a core material having a surface that is covered with one or more substantially transparent coating layer is dispersed, and mirror-reflects the incident light toward a direction opposite to the light source side, at least one layer of the retroreflective sheet is a colored layer containing a coloring material that colors retroreflected light, and the retroreflected light and the mirror-reflected light provide different hues.
    Type: Application
    Filed: April 22, 2005
    Publication date: August 16, 2007
    Applicant: KIWI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shigeo Yukawa, Jiro Sukoboshi