Abstract: The present invention provides an ink set and ink cartridge which allow color printing of an image having an excellent color reproduction with a plurality of inks using an ink jet recording apparatus and provide a good discoloration resistance, color developability and water fastness, a recording method using the ink set and ink cartridge, a recorded material thus obtained, and a recording apparatus therefor. The ink set according to the invention is an “ink set including a dye ink and a pigment ink in combination, characterized in that there are contained a plurality of inks having the same hue but different densities for at least one hue and at least one of the inks having a low density includes a pigment incorporated therein as a colorant”.

Abstract: There is provided an aqueous fluorescent ink that contains an emulsified colored resin and a water-soluble compound having ethylene oxide units that is solid at 25° C.

Abstract: An inkjet recording system comprising a pigment-based ink in combination with a recording element having a porous substrate with relatively large pores and a relatively thin overlying surface layer which traps pigment particles, from an applied pigmented ink, at or near the surface while not unduly restricting ink flow into the underlying porous substrate.

Abstract: An ink jet recording element having a support having thereon in order: a) at least one porous, ink carrier liquid receptive layer; b) a fusible, porous dye-trapping layer of fusible polymeric particles, a binder, and a dye mordant; and c) a fusible, porous ink-transporting layer of fusible, polymeric particles and a film-forming, hydrophobic binder.

Abstract: An ink for ink jet recording and an ink jet recording method which realize an image quality of laser printer on a plain paper in a one-pass printing mode under conditions of a volume of an ink droplet ejected being 5 to 43 Pico liter, a velocity of an ink droplet being 6 to 20 m/sec, frequency of 1 kHz and resolution of 300 dpi or more. The ink for ink jet recording is a penetrating type ink which includes (1) at least one humectant selected from glycerin, 1,3-butandiol, triethyleneglycol, 1,6-hexanediol, propyleneglycol, 1,5-pentanediol, diethyleneglycol, dipropyleneglycol, trimethylolpropane and trimethylolethane, (2) colorant contained in the amount of 6% by weight or more, (3) a polyol having 8 to 11 carbon atoms and glycolether, and an anionic surfactants or non-ionic surfactants, the ink has viscosity of 5 mPa·s or more at 25° C. and a surface tension of 40 mN/m or less.

Abstract: A conveying apparatus for attracting and conveying a conveyed object by a belt provided with electrodes, includes an applying unit for applying a voltage to the electrodes to generate an electric force and a belt attracting unit for attracting the belt utilizing the electric force. Vibration of the conveying belt during conveyance can be suppressed and stable conveyance of a conveyed object can be realized.

Abstract: An inkjet ink of multicolor dye set with high light-fastness and high water-fastness includes: a multicolor dye set, a surfactant, and an aqueous solvent. The multicolor dye set includes a cyan dye set, a magenta dye set, and a yellow dye set. The cyan dye set includes direct blue 199 dye, acid blue 9 dye, and direct blue 86 dye. The magenta dye set includes reactive red 180 dye, acid red 52 dye, and reactive red dye. The yellow dye set includes acid yellow 23 and direct yellow 86 dye. When the multicolor dye set of the invention is applied in ink-jet printing process, the high-quality printed image possesses great light-fastness and water-fastness high chroma, broad color gamut.

Abstract: Disclosed herein is an image-transfer medium for ink-jet printing, including a base material, and a releasing layer and a transfer layer, both, provided on the base material, wherein the transfer layer includes fine particles of a thermoplastic resin, a thermoplastic resin binder, inorganic fine particles and a coupling agent.

Abstract: A system and method of depositing a functional material on a receiver is provided. The system includes a chamber containing fluid in a compressed state. The fluid includes a solvent and suspension of the functional material to be deposited on the receiver. The chamber has a controllable nozzle for the ejection of a stream of the fluid toward the receiver. The system also includes a controllable platform for locating and orienting the receiver with respect to the controllable nozzle and a controller operably connected to the controllable nozzle and the controllable platform that controls the ejection of the compressed fluid through the controllable nozzle and the location of the receiver with respect to the controllable nozzle. The functional material becomes free of the solvent prior to the functional material contacting the receiver.

Abstract: An inkjet printing method having the steps of: I) providing an ink jet printer that is responsive to digital data signals; II) loading the printer with a porous ink jet recording element having a substrate having thereon a porous image-receiving layer having a) inorganic particles encapsulated with an organic polymer having a Tg of less than about 100° C.; and b) particles having a mean particle size of up to about 5 &mgr;m; III) loading the printer with an inkjet ink composition; and IV) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

Abstract: Methods for reducing cavitation in impulse or drop on demand ink jetting devices are provided. Impulse ink jet compositions including antioxidant are also provided which are suitable for printing clear, well-defined alphanumeric text or low spread, narrow bar width bar codes on porous substrates such as Kraft paper or corrugated cardboard. The antioxidant additive lowers the dissolved oxygen level in the ink, thereby enhancing the jetting performance of the printhead.

Abstract: An ink jet printing medium for an embossed interior decorating member includes a base member having a face, a thermoplastic resin layer deposited on the face of the base member, and a non-aqueous and porous ink receiving layer, deposited on the thermoplastic resin layer, for receiving liquid pigment ink. The thermoplastic resin layer is made of a material including a thermoplastic resin and a heating foaming agent dispersed in the thermoplastic resin. In an aspect, the thermoplastic resin layer has not yet been foamed. In another aspect, the thermoplastic resin layer has already been foamed. In still another aspect, the thermoplastic resin layer has already been foamed and embossed.

Abstract: A recording liquid including a coloring material, an organic solvent to disperse or to dissolve said coloring material, water, and a calix[n]arene-p-4-sulfonic acid (where n=4-8) in the form of free acid or its metal salt. The recording liquid is very suitable for inkjet recording using plain paper as recording medium. The recording liquid shows high storage stability, excellent color reproducibility with hard blurring property of mutual colors at superposed area thereof, and high resistively for light fading, for the sake of buffering nature based by both ion-capturing and -releasing, and hydrophobic material-capturing and -releasing bestowed by above-mentioned calix compound.

Abstract: An ink-jet ink comprising a photopolymerizable compound, a photopolymerization initiator and a colorant, wherein the ink has a viscosity of 500 to 50,000 mPa·s at 25° C. and a viscosity of 3 to 30 mPa·s at 80° C.

Abstract: An ink-jet recording a water-based ink from an ink chamber through a nozzle hole, wherein the ink chamber contacting with the water-based ink is constructed by jointing plural construction members with an epoxy adhesive, and the water-based in contains a coloring material, a first organic solvent, and a second organic solvent each having properties of a specific organicity and inorganicity. This method enables to enhance the stability of ejection of ink droplets without shortening the life of the head.

Abstract: An inkjet printing composition for coating a substrate to receive dye images thereon includes: (a) a polymer for absorbing said dye images, and (b) a dye fixative therein to inhibit migration of dye images from one part of the substrate to other portions thereof.

Abstract: The present invention has as its object to detect the termination of ink reliably and highly accurately in an ink jet recording apparatus. An ink cartridge 2 has an opening 5 for connection to a recording head 1, and is include of a negative pressure generating member containing portion 14 containing a negative pressure generating member 13 and having an atmosphere communicating port 10, and an ink containing portion 16 which is adjacent to the negative pressure generating member containing portion 14 and communicates therewith at the bottom 11 of the ink cartridge. Ink detecting device 3 is provided below the ink containing portion 16. When the detecting device 3 detects a reduction in the remain in the ink containing portion 16, ink remains only in the negative pressure generating member containing portion 14 and the remainder can be substantially estimated.

Abstract: An ink for ink-jet recording of the present invention includes a dispersion of a pigment, and an ink solvent containing a water-soluble organic solvent and glycol ether. The ink is prepared such that an Rf value, which represents a rate of flow of the pigment obtained when the pigment dispersion is developed with the ink solvent by means of paper chromatography, is not more than 0.5. The ink has a fast permeation speed, and hence the feathering and the bleeding are avoided.

Abstract: An ink jet printing method, including the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink jet recording elements with a support having thereon an image-receiving layer of a polymer having a given contact angle; C) loading the printer with an ink jet ink composition; D) printing on the image-receiving layer using the ink jet ink in response to the digital data signals to form an imaged recording element; and E) heating the imaged recording element sufficiently to cause the layer of polymer to increase the contact angle at least about 15 degrees.

Abstract: A recording method including the step of providing an ink from a recording head to a recording medium through a gap provided between the recording head and the recording medium, the ink being supplied to the recording head from an ink tank including an ink contact member and the ink contacting the ink contact member, wherein the ink includes: (i) a fluorescent coloring material; (ii) a nonionic surfactant; (iii) a compound which is not compatible with (ii); and (iv) a liquid medium for dissolving or dispersing (i), (ii) and (iii), and wherein the ink contact member comprises at least one compound selected from the group consisting of polyacetate and polyolefin.