Fuji Photo Film Company, Limited

Fuji Xerox Co., Ltd.

Takeshi Mikami

Yuzuru Fukuda

Fujio Kakimi

Takashi Imai

Jiro Minabe

Yasufumi Suwabe

Nobuo Tsuji

Yasuo Mukunoki

Masakazu Yoneyama

Noriyuki Hosoi

Eiichi Akutsu

Tadashi Ikeda

Shigeo Hirano

Shigemi Ohtsu

Ken Hashimoto

Keiichi Adachi

Keishi Shimizu

Kazutoshi Yatsuda

Takatsugu Doi

Yoshihiro Inaba

Takashi Naoi

Takushi Miyazako

Masataka Kiritani

Jun Sasaki

Masakazu Maekawa

Kiyotaka Hori

Katsumi Matsuoka

Jiro Yamaguchi

Kenji Naito

Atsuo Inoue

Maskazu Yoneyama

The present invention provides ink receptive particles, for receiving an ink containing a recording material, the ink receptive particles comprising trap structures for trapping at least a liquid component of the ink, and a liquid absorbing resin. Using the ink receptive particles, the invention also provides a marking materials system, an ink receiving method, a recording method, a recording apparatus, and an ink receptive particle storage cartridge.

Ink receptive particles, marking materials system, ink receiving method, recording method, recording apparatus, and ink receptive particle storage cartridge

The invention provides an aqueous ink composition, which comprises at least: 1) an alkali neutralized product of a copolymer containing constituent units of: (i) at least one monomer selected from the group consisting of alkene, styrene, styrene derivatives, vinyl naphthalene, and vinyl naphthalene derivatives; (ii) at least one monomer selected from monomers containing an acidic group that ion dissociate; and (iii) at least one &#x3b1;,&#x3b2;-ethylenic unsaturated carboxylic acid alkyl ester; 2) a pigment; and 3) an aqueous medium, wherein the alkali neutralized product of the copolymer in the aqueous ink composition forms micelle aggregations with an average diameter being set in the range of 10 nm to 300 nm. A manufacturing method of the aqueous ink composition and an image forming method using the aqueous ink composition are also provided.

Aqueous ink composition, manufacturing method therefor and image forming method using the same

A recording liquid including a colorant, water and at least two kinds of fine resin particles. In a preferred embodiment, at least one of the two kinds of the fine resin particles are fine self-crosslinkable resin particles. In another preferred embodiment, the number of the kinds of the fine resin particles is 3 or more. Also, disclosed is an image recording method using the recording liquid.

Recording liquid and image recording method

A recording liquid comprising a colorant, water and at least two kinds of fine resin particles. In a preferred embodiment, at least one of the two kinds of the fine resin particles are fine self-crosslinkable resin particles. In another preferred embodiment, the number of the kinds of the fine resin particles is 3 or more. Also, disclosed is an image recording method using the recording liquid.

Described are an ink composition comprising water, a colorant and acrylic silicone resin particles having alkoxysilyl groups; and an image recording method comprising discharging the droplet of an ink composition from a recording head to record an image on a substrate, wherein an ink composition comprising water, a colorant and acrylic silicone resin particles having alkoxysilyl groups is used as the ink composition. According to the present invention, 1) blotting of the ink composition on the substrate can be prevented, 2) an image which has water resistance and has a markedly high image density can be obtained, 3) an image does not become sticky even under a high environmental temperature, and 4) there is no problem in safety.

Ink composition and image recording method

The ink composition of the present invention comprises water, colorant and fine particles of a resin containing fluoroolefin units. The fine particles of resin may be preferably fine particles of fluorine-containing vinyl ether resin composed of fluoroolefin units and vinyl ether units represented by the following general formula: ##STR1## wherein X is selected from the group consisting of F, CF.sub.3 and Cl; Y is selected from the group consisting of R.sub.2, R.sub.3 OH and R.sub.4 COOH; R.sub.1 is a hydrogen atom or an alkyl group having from 1 to 18 carbon atoms; R.sub.2 is an alkyl group having from 1 to 18 carbon atoms; R.sub.3 and R.sub.4 are alkylene groups having from 1 to 18 carbon atoms respectively, n and m are integers, and the ratio of m to n, m/n, is in the range of 1/99 to 99/1. The ink composition of the present invention is able to record an image of high density and superior water resistance with only a small amount of ink.

Ink composition and method for recording image

An novel electrophotographic toner composition comprising a capsule toner having a core substance containing a binder resin and a coloring agent, encapsulated with a 0.005 to 0.5 .mu.m-thick shell made of resin which comprises a polyurea and/or polyurethane having a glass transition point of 150.degree. C. or lower.

Electrophotographic toner composition and image fixing process

A pigment dispersion is disclosed, comprising a pigment, an organic solvent, and at least one isocyanate-containing organosilicon compound selected from silylisocyanate derivatives represented by formulae (I), (II) and (III) and condensates thereof:

Pigment dispersion, electrostatic image developing toner and process for

A microcapsule comprising a capsule shell having at least one polymer structure selected from the group consisting of a polyurea resin, a polyurethane resin, a polyamide resin, a polyester resin and an epoxy resin and containing a block and/or graft copolymer formed by the vinyl polymerization of vinyl monomers initiated by the decomposition of a polymerization-initiating azo group which has been previously incorporated in the polymer structure. A process for the preparation of a microcapsule, which comprises the steps of: (a) allowing a first capsule shell-forming monomer and a second capsule shell-forming monomer, at least one of which contains a polymerization-initiating azo group, to undergo reaction in the inside and/or at the border of an oily drop to form a capsule shell containing a polymerization-initiating azo group and having at least one polymer structure selected from the group consisting of a polyurea resin, a polyurethane resin, a polyamide resin, a polyester resin and an epoxy resin, and then (b) allowing vinyl monomers to be vinyl-polymerized to said capsule shell. A microcapsule toner which comprises the above microcapsule in which the vinyl monomers contain a charge controlling group. A process for the preparation of a microcapsule toner which comprises the above process for the preparation of a microcapsule in which the vinyl monomers contain a charge controlling group.

Microcapsule, microcapsule toner and process for preparation thereof

An electrostatographic toner material suitably employable for the pressure fixing process, which comprises encapsulated toner particles having an average particle size in the range from about 0.5 to 1,000 microns, in which the toner particle comprises a pressure fixable adhesive core material containing a colorant and a pressure rupturable shell enclosing the core material, said shell being made of a polymer selected from the group consisting of polyurethane, polyurea and polythiourethane. A process preferably employable for the preparation of the toner material is also disclosed.

Electro-statographic toner material

An electrostatographic toner material suitably employable for a pressure fixing process, comprising a core material containing colorant and binder, and shell enclosing the core material, in which the binder comprises a polymer and a solvent having the boiling point of higher than 180.degree. C. and capable of dissolving or swelling said polymer.

Electrostatographic pressure fixing process using encapsulated toner

A toner particle for electrostatography or magnetography which has an inorganic material such as a specific metallic oxide, a carbonate or a silicate in or on its surface. This inorganic material is in the form of particles and has been treated with a titanate coupling agent on its surface.

Electrophotographic toner compositions of particles coated with metallic

A paper for electrostatography using an encapsulated toner which comprises a core and a shell enclosing the core, characterized in that the optically measured surface roughness value (Rp value) is not more than 3.2 .mu.m.

Paper for electrostatography using encapsulated toner

In a process for the preparation of an electrostatographic toner material comprising encapsulating a core material containing colorant with a shell material in an aqueous medium to prepare encapsulated toner particles and drying the so prepared encapsulated toner particles, the improvement which comprises heating the so dried encapsulated toner particles.

Preparation of electrostatographic encapsulated toner material improved

An encapsulated electrostatographic toner material preferably employable in a pressure fixing process and improved in the fixability after storage of the toner material comprising a core and a shell enclosing the core, in which:

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Minami-ashigara, Japan

Takeshi Mikami