Patent ID: 7074495

Claim:
A recording material support comprising: raw paper, wherein the recording material support satisfies at least one of the following conditions (i) to (iii): (i) Cobb size (30 seconds) of a surface of the recording material support where an image-forming layer is provided, is 10g/m 2 or less; (ii) Oken type smoothness of a surface of the recording material support where an image-forming layer is provided, is 210 seconds or more, and Stdkigt sizing degree thereof is 100 seconds or more; (iii) Central surface average roughness (SRa) measured at a cutoff of 5 mm to 6 mm on a surface of the recording material support where an image-forming layer is provided, is 0.7 Î¼m or less, and variation [Î”SRa; (SRa before contacting water)âˆ’(SRa after contacting water)] of the SRa before and after the surface thereof is brought into contact with water at 20Â°C. for 2 minutes, is in the range of âˆ’0.1 Î¼m to +0.1 Î¼m, and wherein the pulp mass average fiber length of the raw paper is in the range of 0.40 mm to 0.70 mm.