Process For Producing Decorative Sheet, Decorative Sheet, And Decorative Molded Article Obtained Using Same

Abstract

A decorative sheet includes a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material. A surface of the surface protective layer is smooth. In one aspect, a ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material satisfies the following equation (I); and an arithmetic average roughness Ra on the rear face and a thickness T of the base material satisfies the following equation (II): T ×0.30≧ RzJIS   (I) T ×0.20≧ Ra≧T ×0.005  (II). In another aspect, an arithmetic average roughness Ra on a rear face of the decorative sheet is 1.0 to 10.0 μm.

What is claimed is: 
     
         1 . A decorative sheet comprising a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material, wherein a surface of the surface protective layer is smooth; a ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material satisfies the following equation (I); and an arithmetic average roughness Ra on the rear face and a thickness T of the base material satisfies the following equation (II):
     T× 0.30≧ RzJIS   (I)
       T× 0.20≧ Ra≧T× 0.005  (II).
   
     
     
         2 . The decorative sheet according to  claim 1 , wherein an arithmetic average roughness Ra of the surface protective layer is 0.01 μm or more and less than 1.0 μm. 
     
     
         3 . A decorative molded article prepared by using the decorative sheet according to  claim 2 . 
     
     
         4 . A decorative molded article prepared by using the decorative sheet according to  claim 1 . 
     
     
         5 . A decorative sheet comprising a design layer, a primer layer and a surface protective layer formed by cross-linking and curing an ionizing radiation curable resin composition in this order on a base material, wherein a surface of the surface protective layer is smooth, and an arithmetic average roughness Ra on a rear face of the decorative sheet is 1.0 to 10.0 μm. 
     
     
         6 . The decorative sheet according to  claim 1 , wherein an arithmetic average roughness Ra of the surface protective layer is 0.01 μm or more and less than 1.0 μm. 
     
     
         7 . A decorative molded article prepared by using the decorative sheet according to  claim 6 . 
     
     
         8 . A decorative molded article prepared by using the decorative sheet according to  claim 5 .