Ink jet recording medium
AssigneeCanon Kabushiki Kaisha
InventorsTetsuro Noguchi, Hisao Kamo, Yasuhiro Nito, Isamu Oguri, Ryo Taguri, Olivia Herlambang, Naoya Hatta
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Abstract
In an ink jet recording medium having at least two ink receiving layers, the total content of boric acid, a borate, and a water-soluble zirconium salt of a lower ink receiving layer located close to a support substrate to the total content of alumina and an alumina hydrate thereof is higher than the total content of boric acid, a borate, and a water-soluble zirconium salt of an upper ink receiving layer located apart from the support substrate to the total content of alumina and an alumina hydrate thereof.
Claims6
An ink jet recording medium comprising:
- a support substrate;
- and
- at least two ink receiving layers provided on the support substrate,
- wherein among the at least two ink receiving layers, two ink receiving layers each contain at least one selected from alumina and an alumina hydrate, a poly(vinyl alcohol), at least one selected from boric acid and a borate, and a water-soluble zirconium compound, and
- the total content of boric acid, a borate, and a water-soluble zirconium salt of one of the two ink receiving layers located close to the support substrate to the total content of alumina and an alumina hydrate thereof is higher than the total content of boric acid, a borate, and a water-soluble zirconium salt of the other one of the two ink receiving layers located apart from the support substrate to the total content of alumina and an alumina hydrate thereof.
Dependencies are inferred from the claim text.