Patent ID: 6911486
Filing Date: 2005-06-28
Classification: C09B,C11B,G02B,Y10T

Abstract:
1. Encapsulated type fluorescent retroreflective sheeting which comprises a surface-protective layer disposed on the side on which light is to strike, a binder layer connected to the surface-protective layer through network bonding parts, an air layer which is sealed-up by the network bonding parts between the surface-protective layer and the binder layer, and a retroreflective element layer disposed between the surface-protective layer and the air layer, or between the binder layer and the air layer, wherein at least one layer located on the light-incident side of sealed-up air layer contains at least one fluorescent dye selected from the group consisting of benzimidazole coumarin type-fluorescent dyes of formula (1) as follows: wherein R and benzopyran type-fluorescent dyes of formula (2) as follows: wherein Y