Decorative member and manufacturing method thereof

Abstract

A decorative member includes: a transparent resin layer provided on a rear surface thereof with a general portion, a stepped portion recessed or protrudingly provided with respect to the general portion, and an inclination portion provided between the stepped portion and the general portion; and a decorative layer provided on the rear surface, wherein: an inclination angle of the inclination portion with respect to a normal line of the general portion is equal to or more than 25° and is equal to or less than 40°; a width of the inclination portion is large beyond 0.38 mm and is equal to or less than 1 mm; and the decorative layer includes: a first layer that covers the stepped portion of the rear surface; and a second layer that covers a part of the rear surface, which is not covered by at least the first layer.

What is claimed is: 
     
         1 . A decorative member comprising:
 a transparent resin layer provided on a rear surface thereof with a general portion, a stepped portion recessed or protrudingly provided with respect to the general portion, and an inclination portion provided between the stepped portion and the general portion, and   a decorative layer provided on the rear surface of the transparent resin layer, wherein:   an inclination angle of the inclination portion with respect to a normal line of the general portion is equal to or more than 25° and is equal to or less than 40°;   a width of the inclination portion is large beyond 0.38 mm and is equal to or less than 1 mm; and   the decorative layer includes: a first layer that covers the stepped portion of the rear surface of the transparent resin layer; and a second layer that covers a part of the rear surface of the transparent resin layer, which is not covered by at least the first layer.   
     
     
         2 . The decorative member according to  claim 1 , wherein
 in the stepped portion of the rear surface of the transparent resin layer, a height difference with the general portion is equal to or more than 0.3 mm and is equal to or less than 1.0 mm.   
     
     
         3 . The decorative member according to  claim 1 , wherein
 any one of the first layer and the second layer is a metal layer, and the other one of the first layer and the second layer is a colored layer.   
     
     
         4 . The decorative member according to  claim 3 , wherein
 the metal layer is made of indium.   
     
     
         5 . The decorative member according to  claim 1 , wherein
 a boundary line between a part covered with the first layer on the rear surface of the transparent resin layer and a part not covered with the first layer is positioned on the inclination portion.   
     
     
         6 . A manufacturing method of a decorative member comprising:
 preparing a transparent resin layer provided on a rear surface thereof with a general portion, a stepped portion recessed or protrudingly provided with respect to the general portion, and an inclination portion provided between the stepped portion and the general portion, an inclination angle of the inclination portion with respect to a normal line of the general portion being equal to or more than 25° and being equal to or less than 40° and a width of the inclination portion being large beyond 0.38 mm and being equal to or less than 1 mm;   disposing a first layer on at least the stepped portion and the inclination portion of the rear surface of the transparent resin layer;   allowing a part covering the stepped portion in the first layer to remain and separating an excess part, other than the covering the stepped portion, in the first layer by laser irradiation; and   disposing a second layer on a part not covered with at least the first layer of the rear surface of the transparent resin layer.   
     
     
         7 . The manufacturing method of the decorative member according to  claim 6 , wherein
 the first layer is made of indium, and   when the excess part is separated, irradiation energy per unit area of laser irradiated to the first layer is equal to or more than 0.3 mJ and is equal to or less than 0.6 mJ.   
     
     
         8 . The manufacturing method of the decorative member according to  claim 6 , further comprising:
 forming a paint layer made of a paint on the rear surface of the transparent resin layer and including a part in which the first layer has been formed, after the first layer is disposed.   
     
     
         9 . The manufacturing method of the decorative member according to  claim 8 , wherein
 the first layer is made of indium, and   when the excess part is separated, irradiation energy per unit area of laser irradiated to an overlap part of the first layer and the paint layer is equal to or more than 2.5 mJ and is equal to or less than 3.8 mJ.   
     
     
         10 . The manufacturing method of the decorative member according to  claim 6 , wherein
 when the excess part is separated, a boundary between an irradiation area and a non-irradiation area of the laser is set as a center in a width direction of the inclination portion.