Oji Paper Co., Ltd.

Masami Kubota

Bo Liu

Shun-ichiro Mukoyoshi

Tomomi Takahashi

Shinichi Asano

Hiroyuki Nemoto

Shunichiro Mukoyoshi

Masahiro Morie

An ink jet recording material having a high gloss and capable of recording thereon ink images having high color density and clarity, has an ink-receiving layer formed on a substrate and including a binder and secondary particle having an average size of 10 to 300 nm and including a plurality of primary particles of silica prepared by wet method and/or aluminosilicate agglomerated with each other without binder, and can be produced by forming the ink-receiving layer on a shaping base, bonding the substrate to the ink-receiving layer on the shaping base and separating the resultant laminate from the shaping base.

Ink jet recording material and process for producing same

An ink jet recording material having one or more ink receiving layers formed on a substrate and capable of recording clear ink images with a satisfactory gloss, a high color density and an enhanced water resistance is provided with at least one ink receiving layer containing agglomerate pigment particles pulverized in a cationic resin-containing liquid and having an average particle size of 1 &mgr;m or less.

Ink jet recording material and method of producing same

An ink jet recording sheet having excellent gloss and ink jet recording ability and exhibiting a high resistance to damage (gear or spur marks) of the sheet surface due to contact with sheet-conveying rollers located in a sheet-conveying section of an ink jet printer, includes at least one ink receiving layer formed on a support paper sheet and has a recording surface gloss of 30% or more determined at 75 degree angle in accordance with JIS Z 8741; the support paper sheet has an internal fiber-bonding strength of 100&times;10,ft-lb or more, determined in accordance with TAPPI UM 403; and optionally a gloss layer containing a resin is formed on the ink receiving layer.

Ink jet recording sheet

An ink jet recording material having one or more ink receiving layers formed on a substrate and capable of recording clear ink images with a satisfactory gloss, a high color density and an enhanced water resistance is provided with at least one ink receiving layer containing agglomerate pigment particles pulverized in a cationic resin-containing liquid and having an average particle size of 1 .mu.m or less.

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Chiba, Japan

Masami Kubota