Footwear having non-yellowing film

Abstract

A shoe upper is non-yellowed by using a film. The film is covered on a leather. The film has the function of discoloration and has a low density.

1 . A footwear having a non-yellowing film, comprising a shoe sole and a shoe upper deposed on said shoe sole,
 wherein said shoe upper is obtained by adhering a leather layer and a film layer through a high frequency waving;   wherein said leather layer is made of a material selected from a group consisting of an artificial leather and a fabric; and   wherein said film layer is obtained by mixing ingredients of a Styrene-Ethylene/Butylene-Styrene (SEBS) block copolymer, a Polyolefin Elastomer (POE), an Ethylene-Vinyl Acetate (EVA) and a slip agent.   
     
     
         2 . The footwear according to  claim 1   wherein, in said film layer, said SEBS block copolymer, said POE and said EVA have ratios of 5 to 50 percent (5˜50%), 30˜80% and 5˜15% respectively.   
     
     
         3 . The footwear according to  claim 1   wherein said slip agent is selected from a group consisting of a wax and an amine.   
     
     
         4 . The footwear according to  claim 1 ,
 wherein said ingredients are well mixed to obtain a fluid-type material;   wherein, by using an extruder having twin screws, said fluid-type material is extruded under 180 Celsius degrees (° C.) to obtain a pellet-type material;   wherein said pellet-type material is extruded by a T-die to obtain a raw material; and   wherein said film layer is obtained with said raw material through two rolls mill.   
     
     
         5 . The footwear according to  claim 1 ,
 wherein said film layer has a density smaller than 1.   
     
     
         6 . The footwear according to  claim 1   wherein said film layer has a thickness between 0.17 and 2.0 millimeter (mm).   
     
     
         7 . The footwear according to  claim 1   wherein a pigment is added when mixing said ingredients of said film layer.   
     
     
         8 . A footwear having a non-yellowing film, said footwear comprising a shoe sole and a shoe upper deposed on said shoe sole,
 wherein said shoe upper is obtained by adhering a leather layer, a figure layer and a film layer through a high frequency waving;   wherein said leather layer is made of a material selected from a group consisting of an artificial leather and a fabric; and   wherein said film layer is obtained by mixing ingredients of a SEBS block copolymer, a POE, an EVA and a slip agent.   
     
     
         9 . The footwear according to  claim 8 ,
 wherein, in said film layer, said SEBS block copolymer, said POE and said EVA have ratios of 5˜50%, 30˜80%, 5˜15% respectively.   
     
     
         10 . The footwear according to  claim 8 ,
 wherein said slip agent is selected from a group consisting of a wax and an amine.   
     
     
         11 . The footwear according to  claim 8 ,
 wherein said ingredients are well mixed to obtain a fluid-type material;   wherein, by using an extruder having twin screws, said fluid-type material is extruded under 180° C. to obtain a pellet-type material;   wherein said pellet-type material is extruded by a T-die to obtain a raw material; and   wherein said film layer is obtained with said raw material through two rolls mill.   
     
     
         12 . The footwear according to  claim 8 ,
 wherein said film layer has a density smaller than 1.   
     
     
         13 . The footwear according to  claim 8 ,
 wherein said film layer has a thickness of 0.17˜2.0 mm.   
     
     
         14 . The footwear according to  claim 8 ,
 wherein a pigment is added when mixing said ingredients of said film layer.