发明申请
US20110076518A1 RECORDING MEDIUM 有权
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RECORDING MEDIUM
摘要:
The invention provides a recording medium having 2 or more ink receiving layers on a substrate, wherein an upper layer of the ink receiving layers, which is a layer most distant from the substrate, and a lower layer, which is a layer located just under the upper layer, contain at least one selected from alumina hydrate and alumina, an acid and a hydrophilic binder, the acid contained in the upper layer is a carboxylic acid represented by the general formula [I], and the acid contained in the lower layer is a sulfonic acid represented by the general formula [II]. R1—COOH  General formula [I] R2—SO3H  General formula [II]
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