| 摘要 |
PROBLEM TO BE SOLVED: To form an ink receptive layer of a laminar structure consisting of at least, one layer with a top layer containing colloidal silica having high luster and high density as one peak of the pore distribution curve of the top layer represents the specific value of a pore diameter. SOLUTION: This ink jet recording medium consists of an ink receptive layer provided on a sheet-like support such as film. The ink receptor of this medium is of the laminar structure having at least, one layer, and at least, the top layer of this structure contains colloidal silica. In addition, at least, one peak of the pore distribution curve of the top layer of the ink receptive layer is set to 2-100nm. If the position of the peak of the pore distribution curve is equivalent to a less value than this 2-100nm range, the ink absorptive rate is low. On the other hand, if the position of the peak of the pore distribution curve is equivalent to a higher value than 100nm, the ink is apt to easily spread and therefore, a delicate dot cannot be obtained. Further, the surface of the ink jet recording medium appears to be coarse and might lose a smoothness. Besides, if an adhesive is added to the top layer, the colloidal silica hardly becomes condensed in a dispersing liquid, so that the colloidal silica needs to be dispersed in the state of a primary particle. |
