Other

Nippon Paper Industries Co., Ltd.

Seiko Epson Corporation

Nippon Paper Papylia Company, Limited

Hiroki Midorikawa

Hiroyuki Onishi

Yoshihiro Kuroyama

Akio Owatari

Junichi Iida

Yukio Kobayashi

Akihito Ogino

Junpei Natsui

Yoshiaki Ishino

Teiichi Otani

Yoshiteru Kanomata

Norihumi Tanaka

A coating paper which can be removed by water comprising a substrate paper of single layer or lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and a water base color is coated on said substrate paper, wherein a coating layer and at least a part of substrate paper which is a supporter of said coating layer has a characteristic of easily removing, dispersion and dissolving by contact with water, and can provide a water decaying coating paper used preferably for an use of label for a returnable container which may easily remove by contact with water and excellent in printing aptitude and a method for preparation thereof can be provided.

Coating paper which can be removed by water and a method for preparation thereof

An ink jet recording medium is provided which can be excellent in the ink-absorbing property, showing a high coloring property of images, and capable of printing images of a high image quality without causing color unevenness even by bidirectional printing using a high-resolution printer. An ink jet recording medium in the case of carrying out bidirectional printing using a printer of a serial system wherein inks of at least two colors are mounted in carriages and the nozzle row is disposed in parallel with the main scanning direction of a head, wherein the recording medium comprises a base material and an ink-receiving layer, the ink-receiving layer has an average ink-absorbing capacity of from 10 to 30 cc/cm , and the contact angle of the uppermost surface layer of the ink-receiving layer is from 20 to 60 degree to an ink having a surface tension of from 25 to 72 dyn/cm, is also provided.

Ink jet recording medium

A recording medium and a recording method are provided which can realize an image having excellent storage stability. An ink composition comprising a colorant of at least one dye selected from the group consisting of a stilbene azo dye, a triphenylmethane dye, and a xanthene dye is used, and the recording medium having a recording layer comprising silica and a binder, wherein the binder comprises a polymer component, 5 to 55% by weight of a polymer component of the binder is a styrene/butadiene latex, and 20 to 45% by weight of the styrene/butadiene latex is derived from a butadiene monomer.

Recording medium and ink jet recording method

An ink jet recording medium is disclosed, comprising a base having provided on one side thereof a recording layer having an ink receiving layer whose surface is smoother than plain paper's and on the other side thereof a coating layer comprising an aqueous binder containing 10 to 40% by weight of a higher fatty acid salt to a coating weight of 0.1 to 0.3 g/m.sup.2. An ink jet recording medium is also disclosed, comprising a base having provided on only one side thereof a recording layer, said recording layer having a coefficient of dynamic friction of 0.65 to 0.75 in mutual friction, the back surface of said base having a coefficient of dynamic friction of 0.15 to 0.25 in mutual friction, and the coefficient of static friction between said recording layer and said back surface is 0.55 to 0.65. The ink jet recording medium is prevented from being double-fed and can be transferred at improved precision, thereby providing high quality images. The ink jet recording layer is freed from feed trouble and can be transferred at improved precision, thereby providing images of high resolving power.

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Tokyo, Japan

Hiroki Midorikawa