Asahi Glass Company, Limited

Sumito Terayama

Hitoshi Kijimuta

Katsutoshi Misuda

Shinichi Suzuki

Nobuyuki Yokota

Yasumasa Yukawa

Masaaki Saito

An ink jet recording medium for a pigment ink, which including a substrate, a porous layer of alumina hydrate having a thickness of from 1 to 200 &mgr;m, formed on the substrate, and a water-soluble resin layer having a thickness of from 0.01 to 50 &mgr;m, formed as an upper layer thereon.

Ink jet recording medium for a pigment ink

A recording medium for pigment ink, which comprises a substrate, a porous layer comprising alumina hydrate, formed on the substrate, and a pigment-fixing layer comprising agglomerates having an average agglomerate particle size of from 0.1 to 0.5 &mgr;m or monodisperse particles having an average primary particle size of from 0.1 to 0.5 &mgr;m, formed on the porous layer.

Recording medium for pigment ink

A coated paper comprising a paper substrate, a pseudo-boehmite layer formed on the substrate and a silica layer laminated on the pseudo-boehmite layer, said coated paper having a 60.degree. specular glossiness of at least 30% as stipulated in ISO 2813.

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Yokohama, Japan

Sumito Terayama