Paper, image-recording material support, and image-recording material

Abstract

Paper and an image-recording material support which have high surface planarity and excellent gloss are disclosed. Moreover, an image-recording material is disclosed which uses the image-recording material support and is capable of obtaining high quality image. The paper includes raw paper. The paper satisfies at least one of the following conditions (i) and (ii): (i) the paper has an inner bonding strength of 160 mJ or more specified in Japan Technical Association of the Pulp and Paper Industry No. 54, and an average center surface roughness (SRa) on at least one face of the paper is 0.9 μm or less at a cutoff wavelength of 0.3 mm to 0.4 mm, and (ii) an Oken type smoothness S (second) on the at least one face of the paper, and a density ρ (g/cm 3 ) of the paper satisfy an expression S 1/2 /ρ 3 ≧15.

1 .- 23 . (canceled)  
   
   
       24 . An image-recording material support, comprising: 
 a raw paper subjected to a press dry treatment; and    a coat layer,    wherein the coat layer is formed by transferring a surface appearance of a member with a smooth surface to at least a face of the raw paper which face is subjected to the press dry treatment,    wherein the paper satisfies at least one of the following conditions (i) and (ii):    (i) the paper has an inner bonding strength, as defined in Japan Technical Association of the Pulp and Paper Industry No. 54, of 160 mJ or more, and an average center surface roughness on at least one face of the paper is 0.9 μm or less at a cutoff wavelength of 0.3 mm to 0.4 mm, and    (ii) an Oken type smoothness S (second) on the at least one face of the paper, and a density ρ (g/cm 3 ) of the paper satisfy an expression S 1/2 /ρ 3 ≧5.    
   
   
       25 . The image-recording material support according to  claim 24 , wherein the smooth surface of the member is a mirror face of a surface of a metal drum.  
   
   
       26 . The image-recording material support according to  claim 24 , wherein the coat layer is a cast coat layer.  
   
   
       27 . The image-recording material support according to  claim 24 , wherein the face subjected to the press dry treatment has an average center surface roughness of 0.5 μm or less at a cutoff wavelength of 5 mm to 6 mm.  
   
   
       28 . An image-recording material, comprising: 
 an image-recording material support comprising    a raw paper subjected to a press dry treatment;    and a coat layer,    wherein the coat layer is formed by transferring a surface appearance of a member with a smooth surface to at least a face of the raw paper which face is subjected to the press dry treatment; and    an image-recording layer disposed on the image-recording material support,    wherein the paper satisfies at least one of the following conditions (i) and (ii):    (i) the paper has an inner bonding strength, as defined in Japan Technical Association of the Pulp and Paper Industry No. 54, of 160 mJ or more, and an average center surface roughness on at least one face of the paper is 0.9 μm or less at a cutoff wavelength of 0.3 mm to 0.4 mm, and    (ii) an Oken type smoothness S (second) on the at least one face of the paper, and a density ρ (g/cm 3 ) of the paper satisfy an expression S 1/2 /ρ 3 ≧15.    
   
   
       29 . The image-recording material according to  claim 28 , wherein the image-recording material is selected from the group consisting of an electrophotographic material, a heat sensitive material, an inkjet-recording material, a sublimation transfer material, a silver salt photographic material, and a heat transfer material.  
   
   
       30 . The image-recording material according to  claim 28 , wherein the coat layer is a cast coat layer.