Tomoegawa Paper Co., Inc.

Other

Fuji Photo Film Company, Limited

Seiko Epson Corporation & Tomoegawa Paper Co., Ltd.

Kiyoshi Iwamoto

Hiroyuki Onishi

Takayuki Ishikawa

Jun Sugiyama

Nobuhiro Kubota

Senichi Yoshizawa

Takeshi Yoshimoto

Tomio Oki

Yukari Ishikawa

Masaaki Itano

Minoru Tsuchida

Shigeki Asai

Keno Kamimura

Shinichiro Kobayashi

Yukari Sano

Sho Nakao

Akio Owatari

Kenji Kunichika

Chikashi Ohishi

Yoshiaki Kaburaki

Masato Iwai

Shinitiro Kobayashi

The present invention provides a recording medium for ink jet printers in which superior image recording quality and color stability are exhibited. In a recording medium for ink jet printers in which an ink receiving layer contained at least pigment and binder resin is provided on a supporting material, partially saponified PVA having a degree of saponification of 85.0 to 73.0 mol % and a degree of polymerization of 300 to 1500, is contained in the ink receiving layer as a color stability improving component.

Recording medium for ink jet printers

A recording medium for ink jet printers having superior effects in preventing recorded image deterioration such as lowering of image clarity, decrease in density, change in color tone, etc., under high temperature and high humidity, is provided. An ink receiving layer is formed on a base material by coating acrylic copolymer containing at least (meth)acrylate having a solubility parameter (&dgr;) of 15.0 to 23.0 MPa as a copolymerizing component, and thereby a recording medium for ink jet printers is produced.

Ink-jet recording medium

The invention provides an ink-jet recording sheet having an excellent preventive effect on overall. degradation by light such as degradation of image clarity, and decrease in density or change of tone of images, and a resin composition for ink-jet recording media used in the formation thereof. The recording sheet of the invention comprises a substrate and as an ink-receiving layer provided on the substrate, a layer containing an acrylic resin comprising, as copolymerizable monomers, (a) a dialkylaminoalkyl methacrylate, (b) acrylamide and (c) at least one monomer selected from among an. alkoxypolyethylene glycol methacrylate, a 2-hydroxyalkyl methacrylate and a 2-hydroxyalkyl acrylate.

Ink-jet recording sheet

A recording medium for ink jet printers having superior recording properties for ink jet printers and having superior surface strength in which recorded images are not easily peeled. Acrylic type copolymer in which at least three components of an A component: (metha)acrylate; a B component: hydroxyalkyl (metha)acrylate; and a C component: antioxidation monomer and/or ultraviolet ray absorptivity monomer are copolymerizing components is contained in a coating solution, an ink receiving layer is provided by coating this solution on a base material, whereby a recording medium for ink jet printers is formed.

Medium for ink-jet recording

An inkjet recording sheet whose discoloration, which is caused with the passage of time, is prevented, the inkjet recording sheet comprising a substrate and an ink receptor layer formed on the substrate, the ink receptor layer containing a polymer obtained from a monomer component containing at least vinyl-polymerizable monomer containing a basic nitrogen atom, the ink receptor layer containing a polymerization inhibitor in an amount of 10 to 500 ppm.

Inkjet recording sheet

The present invention provides a superior recording sheet for ink jet printers which can completely satisfy property requirements such as light resistance of the printing images. The recording sheet for an ink jet printer includes a water-soluble divalent or greater metallic salt, so that properties such as light resistance are improved very effectively.

Recording sheet for ink jet printer

A recording medium which can prevent a failure of the recording medium to be fed or carried in a printer without sacrificing the glossiness is disclosed. Addition of a mixture of a spherical silica with a nonspherical silica to a gloss surface layer of a recording medium realizes good glossiness with good feedability and carriability in a printer.

Recording medium having gloss surface layer

It is an object of the present invention to provide an inkjet recording sheet which can solve the problems of conventional inkjet printing sheets which has good ink absorbing properties, storage properties causing no blocking, clearness of printed images, and excellent fixing properties; and which can provide highly fine images without blurring in full color printing; therefore, in order to accomplish the objects, the of the present invention comprises an ink absorbing layer on at least one surface of a substrate, and an ink impermeable layer comprising a hydrophobic resin on the surface of the ink absorbing layer.

An ink jet recording sheet comprising: a support member; a first ink receiving layer comprising at least silica which is on the support member, and a second ink receiving layer comprising at least silica in different conditions from the conditions in the first ink receiving layer, and which is on the first ink receiving layer.

Ink jet recording sheet

The present invention relates to a recording medium which has an electroconductive layer which exhibits strong stable resistance to humidity and water, and provides high precision visual images and color reproduction of superior quality. The electroconductive substrate comprises an electroconductive layer on at least one side, wherein the electroconductive layer contains an electroconductive pigment, a normal salt and a binder; the binder contains 20 to 85 weight % of starch and the normal salt is maintained at 10 to 100 parts by weight with respect to 100 parts by weight of said electroconductive pigment. The recording medium comprises a recording layer which is formed on the electroconductive layer described above, and may contain silicone resin particles therein for further improvement of high prevision visual images.

Electrostatic recording medium

A conductive substrate and electrostatic recording media which incorporates such a conductive substrate are disclosed. The disclosed conductive substrate and recording media are applicable to electrostatic recording processes, electrophotographic printing processes and the like, and demonstrate excellent resistance to damage by water and other environmental factors. The conductive substrate of the present invention includes a substrate layer with at least one surface thereof having a conductive layer formed thereover. The above mentioned conductive layer has as a principle component an acryl type copolymer formed from polymerizable vinyl monomer of the type shown in chemical structural diagram 1 below in an amount of 10 to 45% by weight of the acryl type copolymer, and at least one other type of polymerizable vinyl monomer, ##STR1## such that in chemical structural diagram 1, R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 represents an alkylene group, R.sub.3, R.sub.4 and R.sub.5 represent benzyl groups or one to four carbon atom alkyl groups, and X represents chlorine, bromine, CH.sub.3 SO.sub.4 or C.sub.2 H.sub.5 SO.sub.4.

Conductive substrate and printing media using the same

An electrostatic recording material comprising a conductive having on at least one side thereof an electroconductive layer and a recording layer in this order is disclosed, wherein said support is made of fabric having a weaving density of at least 30 yarns/cm and a weaving interstice of not more than 150 .mu.m. The recording material exhibits satisfactory recording characteristics and excellent durability, while having a feeling inherent to the fabric.

Electrostatic recording material

An electrophotographic photoreceptor having on a conductive support an interlayer and a photoconductive photoreceptive layer in that order, with the interlayer containing at least one colloidal substance selected from colloidal silica and colloidal alumina, and an organic solvent soluble resin which is composed of

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Shizuoka, Japan

Kiyoshi Iwamoto