| 摘要 |
PROBLEM TO BE SOLVED: To obtain a good ink absorption property, water resistivity, and moisture proof making the ratio of glossiness of yellow, cyan, and magenta after printing relative to the glossiness of an ink receptacle layer before printing in JIS 88741, larger than a specific value. SOLUTION: The relation between the glossiness G1 of a receptacle layer before printing and the glossiness G2 of yellow, cyan, and magenta after printing is preferably to be G2/G1>=0.5 (preferably 0.6), and if it is less than 0.5, the coloring property (glossiness) of printing pictures tends to lower. In addition, each glossiness G2 of yellow, cyan, and magenta after printing is preferable to be 50% or more, and more preferably, to be 55% or more. Furthermore, the relation between the thickness d1 of a lower layer consisting mainly of a cationic copolymer and cross-linked polyalkylene oxide resin and the thickness d2 of an upper layer consisting mainly of hydrophilic polymeric resin is preferable to be d1>=d2, and as d2 exceeds d1, water resistiveness or moisture preventiveness becomes low. |
