Skin material and method for producing the same

Abstract

The method for producing a skin material is a method for producing a skin material having a concave part formed on the front surface side, comprising heat-pressing a raw material between an embossing die and an elastic sheet to form the concave part and, at the same time, forming a convex part on a bottom surface of the concave part.

What is claimed is: 
     
         1 . A method for producing a skin material having a concave part formed on a front surface side, comprising:
 heat-pressing a raw material between an embossing die and an elastic sheet to form the concave part and;   at the same time, forming a convex part on a bottom surface of the concave part.   
     
     
         2 . The method for producing a skin material according to  claim 1 ,
 wherein a pressing rib is protrudingly provided on a surface of the embossing die,   wherein the pressing rib is formed with a gap part that opens at its tip end surface, and   wherein, during the heat-pressing, the pressing rib presses the front surface side of a part of the raw material to form the concave part, and, at the same time, a part of the raw material is pushed out into the gap part by repulsive force of the elastic sheet due to the pressing of the pressing rib to form the convex part.   
     
     
         3 . The method for producing a skin material according to  claim 2 , wherein the heat-pressing is performed in a state where the surface of the embossing die on which the pressing rib is protrudingly provided is spaced apart from the front surface of the raw material. 
     
     
         4 . A skin material having a concave part formed on a front surface side, wherein a convex part is formed on the bottom surface of the concave part. 
     
     
         5 . The skin material according to  claim 4 , wherein the convex part is formed to extend linearly in a plan view or a plurality of the convex parts are formed to be arranged in a line in a plan view. 
     
     
         6 . The skin material according to  claim 5 , wherein the concave part is formed to extend linearly in a plan view. 
     
     
         7 . The skin material according to  claim 4 , wherein a width of the convex part is 0.3 to 10 mm. 
     
     
         8 . The skin material according to  claim 4 ,
 wherein the skin material includes a base cloth layer containing at least thermoplastic resin fibers and made of a knit, and a skin layer bonded to a surface of the base cloth layer,   wherein, in the base cloth layer, a concave heat-deformed part in which the thermoplastic resin fibers are thermally deformed is formed at a position corresponding to the concave part,   wherein the heat-deformed part includes a bulging part at a position corresponding to the convex part, and   wherein the skin layer follows a surface shape of the heat-deformed part.