Fujifilm Corporation

Misato Sasada

Toshiyuki Makuta

Jun Matsumoto

Kiyoshi Irita

Yasufumi Ooishi

Takafumi Hosokawa

Yasuhiko Kachi

Terukazu Yanagi

Daisuke Sasaki

Koji Naoe

Mika Imamura

Yushi Hongo

Hiroshi Yamamoto

Minoru Sakai

Takahiro Ishizuka

Yusuke Nakazawa

Takahiro Kato

Naoya Shibata

Masao Ikoshi

Norihide Shimohara

Toshihiro Kariya

Yuuichi Hayata

Koji Yasuda

Reiko Fukagawa

Toshihiro Kamada

Akihiro Hara

Naoko Nishimura

Tomoko Kuwabara

Takuma Kawamoto

Hiromichi Numazawa

Minako Hara

Provided are an image recorded material including a substrate and an image recorded on the substrate, in which the image includes a cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a stripe pattern of a bright portion and a dark portion, observed by a scanning electron microscope, in a cross section along a thickness direction of the image, in a case where an angle between a continuous line which is the bright portion or the dark portion and a main surface of the substrate is defined as an alignment angle, at least two regions in which an absolute value of a difference of the alignment angles is 5° or more are provided, and both of the two regions have a length of width of 1 mm or more in an in-plane direction of the substrate; and applications thereof.

Image recorded material and image recording method

Provided is an ink set for security image recording comprising an infrared-absorbing ink jet ink which contains a polymerizable compound and an infrared absorbing dye and in which a maximum value of an absorbance in a wavelength range of 750 nm to 1,000 nm is larger than a maximum value of an absorbance in a wavelength range of 400 nm to 750 nm, and color ink jet inks which each contain a polymerizable compound and a colored colorant and satisfy a ratio of a maximum value of an absorbance of each of the color ink jet inks in a wavelength range of 750 nm to 1,000 nm to the maximum value of the absorbance of the infrared-absorbing ink jet ink in a wavelength range of 750 nm to 1,000 nm of 0.10 or less. Also provided are applications of the ink set.

Ink set for security image recording, security image recording method, and article with recorded security image

Provided is an ink jet recording method including recording an infrared absorbing image by applying a first ink, which contains an infrared absorber and a first curable compound, onto an impermeable substrate by an ink jet method, semi-curing the infrared absorbing image by irradiating the infrared absorbing image with active energy rays, recording a non-infrared absorbing image by applying a second ink, which has a content of the infrared absorber of lower than 0.1% by mass and contains a second curable compound, to a surface of the substrate with the infrared absorbing image by the ink jet method, and curing the semi-cured infrared absorbing image and the non-infrared absorbing image by irradiating these images with active energy rays.

Ink jet recording method

Provided are: a photocurable ink composition including particles of a squarylium coloring agent represented by Formula (1) a radically polymerizable monomer, a radical polymerization initiator, and a coloring agent sensitizer, in which a volume average particle diameter of the particles of the squarylium coloring agent is 10 nm to 400 nm (in Formula (1), ring A and ring B: an aromatic ring or a heteroaromatic ring; X, X, G, and G: monovalent substituent; kA=integer of 0 to nA; kB=integer of 0 to nB; nA: an integer that is a maximum number of Gthe ring A can have as its substituent; and nB: an integer that is a maximum number of Gthe ring B can have as its substituent); and an image recording method.

Photocurable ink composition and image recording method

Provided are an ink composition for ink jet printing, and an image forming method and a recorded material using the ink composition for ink jet printing. The ink composition for ink jet printing includes: a colorant represented by the following Formula 1; resin particles; a water-soluble organic solvent; and water. In Formula 1, Yand Yeach independently represent a non-metal atomic group which forms an aliphatic ring or a heterocycle, Mrepresents a proton or a monovalent alkali metal cation or organic cation, Lrepresents a methine chain consisting of 5 or 7 methine groups, and a methine group at a center of the methine chain has a specific substituent. 

Ink composition for ink jet printing, image forming method, and recorded material

Provided are a manufacturing method of a dispersion including a step A of preparing a mixture containing an edible pigment, an edible dispersant, and water, a step B of applying a hydrostatic pressure equal to or higher than 30 MPa to the mixture, and a step C of performing a dispersion treatment on the mixture to which the hydrostatic pressure is applied; a pigment dispersion for ink jet recording and a manufacturing method thereof; and an ink composition for an ink jet and a manufacturing method thereof.

Manufacturing method of dispersion, pigment dispersion for ink jet recording, manufacturing method of pigment dispersion for ink jet recording, ink composition for ink jet, and manufacturing method of ink composition for ink jet

Provided are an iron oxide dispersion for ink jet recording, a method of manufacturing the same, and an ink jet recording method. The iron oxide dispersion for ink jet recording includes: iron oxide particles; a resin that has at least one of an amino group or a quaternary ammonium group and coats at least a part of surfaces of the iron oxide particles; and water, in which an average particle diameter of the iron oxide particles having surfaces at least a part of which are coated with the resin is 90 nm to 400 nm.

Iron oxide dispersion for ink jet recording, method of manufacturing the same, and ink jet recording method

In a conductive film-forming composition including copper oxide particles, water and a dispersant selected from the group consisting of a water-soluble polymer and a surfactant, the copper oxide particles have a volume average secondary particle size of 20 to 240 nm, and the copper oxide particles are contained in an amount of 10 to 70 wt % with respect to a total weight of the conductive film-forming composition.

Conductive film-forming composition and conductive film producing method

The invention provides a white ink composition for inkjet recording, including: titanium dioxide having an average primary particle diameter of from 200 nm to 350 nm; a hydrophilic, layered clay mineral; a water-soluble resin; and water. The invention further provides: an ink set for multilayer formation including the white ink composition and an ink composition for inkjet recording, including a colorant having a hue other than white; an image forming method including applying the white ink composition to a recording medium and irradiating the white ink composition applied to the recording medium with an active energy ray; and a printed matter including an image formed on a recording medium by the image forming method.

White ink composition, ink set for forming multiple layers, image forming method and printed matter

A black ink composition is provided which suppresses change in hue and can form an image with superior blocking resistance and scratch resistance. The black ink composition for ink jet recording includes a carbon black pigment; at least any one type of colorant pigment which is selected from a magenta pigment and a cyan pigment; a water-soluble polymerizable compound; a polymerization initiator; and water, wherein the average primary particle diameter of the carbon black pigment is 20 nm or more and less than 35 nm, the content ratio of the carbon black pigment with regard to the total mass of all of the pigments is 70 mass % or less, and the total mass of all of the pigments with regard to the total mass of the black ink composition is 4 mass % or less.

Black ink composition, ink set, and image forming method

An ink composition of the present invention includes: cross-linked particles containing a quinacridone solid solution pigment including at least two types of quinacridone-based compound; a water-soluble polymerizable compound; a polymerization initiator; and water. By selectively using cross-linked solid solution pigments as pigments (colorants), along with excellent adhesion of the image, the stability over time of the ink composition itself is excellent.

Ink composition, ink set, and image forming method

Disclosed is an ink composition with excellent adhesiveness of an image on a recording medium and recoverability after being left for a period. The ink composition of the present invention contains coloring particles that include a quinacridone solid solution pigment including two or more types of quinacridone-based compounds, a synergist including a basic group, and a high-molecular weight vinyl polymer, a water-soluble polymerizable compound, a polymerization initiator and water.

A black ink composition includes a resin-coated carbon black containing a water-soluble resin and carbon black, a water-soluble polymerizable compound, a polymerization initiator, and water, wherein an average primary particle diameter of the carbon black is 20 nm or more, and an absorbance ratio of absorbance at a wavelength of 350 nm with respect to absorbance at a wavelength of 600 nm (absorbance at a wavelength of 350 nm/absorbance at a wavelength of 600 nm), when the black ink composition is diluted 5,000-fold with water, is 1.9 or lower.

An ink set is disclosed which includes a yellow ink composition containing a resin-coated yellow pigment in which a yellow pigment is coated with a crosslinked water-soluble resin, a water-soluble polymerizable compound and water; a magenta ink composition containing a resin-coated magenta pigment in which a magenta pigment is coated with a crosslinked water-soluble resin, a water-soluble polymerizable compound and water; a cyan ink composition containing a resin-coated cyan pigment in which a cyan pigment is coated with a crosslinked water-soluble resin, a water-soluble polymerizable compound and water; and a treatment liquid containing an aggregating agent for aggregating components in the ink compositions.

Ink set and image forming method

An ink composition includes: a pigment; water; a polymerizable monomer that is capable of being polymerized by an active energy ray; and an initiator that is capable of initiating polymerization of the polymerizable monomer by the active energy ray, wherein a number of particles contained in the ink composition having a particle diameter of 0.8 &#x3bc;m or more is 20,000 particles/&#x3bc;l or less.

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Kanagawa, Japan

Misato Sasada