Electroconductive paper and carrier for electronic member using said paper

Abstract

There are disclosed electroconductive paper which comprises on at least one side thereof, an electroconductive-substance-containing layer having a surface resistivity of at most 10 7 Ω and a surface pH in the range of 5.5 to 8.0, and which has preferably a half-life period of static electricity being at most 0.2 second and a concentration of sulfate ions of at most 1 ppm, the ions being extracted by subjecting 1 g of electroconductive paper to an extraction treatment in 70 milliliter (mL) of deionized water at 100° C. for 1 hour; and a carrier for an electronic member which carrier uses the electroconductive paper. The above electroconductive paper is capable of suppressing the corrosion of the electronic member due to the generation of sulfate ions and the like, and thereby is well suited for use as a carrier for the electronic member.

What is claimed is:  
     
         1 . Electroconductive paper which comprises on at least one side thereof, an electroconductive-substance-containing layer having a surface resistivity of at most 10 7  Ω and a surface pH in the range of 5.5 to 8.0.  
     
     
         2 . The electroconductive paper according to  claim 1 , which has a half-life period of static electricity being at most 0.2 second.  
     
     
         3 . The electroconductive paper according to  claim 1 , wherein the concentration of sulfate ions thereof is at most 1 ppm, which are extracted by subjecting 1 g of electroconductive paper to an extraction treatment in 70 milliliter (mL) of deionized water at 100° C. for 1 hour.  
     
     
         4 . The electroconductive paper according to  claim 2 , wherein the concentration of sulfate ions thereof is at most 1 ppm, which are extracted by subjecting 1 g of electroconductive paper to an extraction treatment in 70 mL of deionized water at 100° C. for 1 hour.  
     
     
         5 . A carrier for an electronic member which carrier makes use of the electroconductive paper as set forth in  claim 1 .  
     
     
         6 . A carrier for an electronic member which carrier makes use of the electroconductive paper as set forth in  claim 2 .  
     
     
         7 . A carrier for an electronic member which carrier makes use of the electroconductive paper as set forth in  claim 3.