| 摘要 |
This invention provides an ink jet recording medium comprising a support and at least two layers on one side of the support, wherein the uppermost layer placed farthest from the support comprises a porous colloidal silica and a binder, at least one of the layer(s) that is not the uppermost layer comprises inorganic fine particles having an average primary particle diameter of less than 20 nm and a binder, the content of the inorganic fine particles is 10 g/m<SUP>2 </SUP>or more, the ratio (A/B) by mass between the inorganic fine particles (A) and the binder (B) is from 3 to 15, and at least the uppermost layer and/or a layer other than the uppermost layer comprises a sulfoxide compound and/or a thioether compound.
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