| abstract |
A recording medium is provided which is constituted of a base material and an ink-receiving layer formed on the base material and containing alumina hydrate of a boehmite structure, or is constituted of a fibrous material and alumina hydrate of a boehmite structure incorporated therein. The alumina hydrate in the ink-receiving layer or the fibrous material has an interplanar spacing of (020) plane of exceeding 0.617 nm but not more than 0.620 nm, and crystallite size in a direction perpendicular to (010) plane ranging from 6.0 to 10.0 nm. |