Nippon Paper Industries Co., Ltd.

Other

Noboru Kondo

Atsushi Ono

Teiichi Otani

Takashi Ueno

Hiroyuki Onishi

Masaya Shibatani

Yoshihiro Kuroyama

Akinobu Chatani

Jun Sugiyama

Shinya Yamagata

Yoshifumi Iimori

An ink-jet recording material having on a support at least one ink-receiving layer comprising pigment and binder, which further contains in the uppermost layer of the ink-receiving layers at least one water-soluble acidic or neutral salt selected from the group consisting of aluminum salts, magnesium salts, sodium salts, potassium salts and zinc salts, and thereby acquires suitability for an ink-jet recording process using pigment ink.

Ink-jet recording material suitable for pigment ink

An ink-jet recording material having on a support at least an ink-receiving layer, with the ink-receiving layer being comprised of a light resistance-imparting layer as a lower layer and a coloration layer as an upper layer. Herein, the light resistance-imparting layer comprises a light-resistance imparting chemical constituted of 1 to 10 parts by weight of a benzotriazole compound as ultraviolet absorbent, 1 to 8 parts by weight of magnesium sulfate and 1 to 10 parts by weight of zinc oxide in combination with 100 parts by weight of an ink absorbing pigment, and besides, the coloration layer contains no light resistance-imparting chemicals.

Ink-jet recording material

A recording material for ink-jet recording, having on a support a light resistance-imparting layer containing a light resistance-imparting chemical and an image-forming layer free of a light resistance-imparting chemical, which are provided in the order described.

Recording material for ink-jet recording

An ink-jet recording material having on at least one surface of a base paper at least one ink-receiving layer comprising pigment and binder, with the ink-receiving layer having a rough texture specified by a surface roughness of at least 9.0 &mgr;m when measured with a PARKER PRINT-SURF measurement device (PPS) under a soft packing condition of 5 kgf/cm , a surface roughness of at least 7.0 &mgr;m when measured with PPS under a soft packing condition of 10 kgf/cm , a center-line average roughness (Ra) of at least 3.0 &mgr;m and an Oken-type smoothness of at most 30 seconds, thereby creating an atmosphere of paintings or calligraphic works in the images printed thereon.

An ink jet recording paper, which is excellent in ink absorbency and color-developing properties and has dull-tone glossiness, comprising an ink-receiving layer and at least two colloidal silica layers applied successively onto a support, each of said colloidal silica layers comprising chain colloidal silica as a main ingredient, wherein at least the colloidal silica layer contacting the ink-receiving layer contains no binder and has a coverage of about 1 to 3 g/m , and the coverage of other colloidal silica layer is about 1 to 6 g/m .

Ink jet recording paper and the production thereof

Ink jet recording sheet

An ink jet recording paper having on at least one side of a base paper at least two ink-receiving layers which each comprise a pigment and a resin as main components; the topmost layer of said ink-receiving layers having a thickness of 5 &mgr;m to less than 25 &mgr;m and a density of 0.4 g/cm,to 0.6 g/cm,and the ink-receiving layer arranged underneath said topmost layer having a density higher than the density of the topmost layer by 0.05 g/cm,to 0.5 g/cm,, thereby acquiring high suitability for full-color ink jet printer of photo type.

Growing community of inventors

Tokyo, Japan

Noboru Kondo