Fujifilm Corporation

Tsutomu Umebayashi

Toshiyuki Makuta

Tetsuzo Kadomatsu

Yutaka Maeno

Noriaki Sato

Shota Suzuki

Masaaki Konno

Tokihiko Matsumura

Ichiro Koyama

Toshihiro Kamada

Yusuke Fujii

Ippei Nakamura

Yusuke Nakazawa

Shigetomo Tsujihata

An ink set includes an ink-jet color ink that contains a colorant, an organic solvent, a polymerizable compound, and a photopolymerization initiator and a clear ink which contains an organic solvent and a vinyl chloride-vinyl acetate copolymer and in which Mt2/Mt1 is 0.40 or more where Mt1 represents a total mass content of a nonvolatile component, and Mt2 represents a mass content of the vinyl chloride-vinyl acetate copolymer.

Ink set

Provided is an ink jet liquid composition including an organic solvent, a bifunctional urethane (meth)acrylate oligomer having a weight-average molecular weight of 2,000 to 15,000, a photopolymerization initiator, and a vinyl chloride-vinyl acetate copolymer, in which a content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to a total mass of the liquid composition. Also provided is an ink jet recording method using the ink jet liquid composition.

Ink jet liquid composition and ink jet recording method

An ink jet liquid composition contains an organic solvent, a polymerizable compound, a photopolymerization initiator, and a polyether-modified siloxane compound having a weight-average molecular weight of 3,000 or more, and the content of the organic solvent is 40% by mass or more and 90% by mass or less with respect to the total mass of the composition. In addition, an ink jet recording method using the ink jet liquid composition is provided.

An ink composition including: a microcapsule having: a shell having a three-dimensional cross-linked structure including at least one of a urethane bond or a urea bond; and a core encapsulated by the shell; a colorant selected from the group consisting of a colorant having an ionic group and a colorant at least a part of a surface of which being covered with a dispersant having an ionic group; and water, a content ratio of an acidic group-containing compound having at least an acidic group, an acid dissociation constant of 5 or less, and a molecular weight of 2000 or less, relative to a total mass of the ink composition, is 0.5 mass % or less; an ink set, a method for producing an ink composition, and an image recording method.

Ink composition, ink set, image recording method, and method for producing ink composition

Provided are an ink jet recording method including a colored ink jetting step of jetting a colored ink including a coloring agent and an organic solvent from an ink jet head onto a recording medium, a colored ink heating step of heating the colored ink jetted onto the recording medium by maintaining a surface temperature of the recording medium at 40&#xb0; C. or higher, a colorless ink jetting step of jetting a colorless ink including a polymerizable compound, a photopolymerization initiator, and an organic solvent from the ink jet head onto the colored ink after the heating, a colorless ink heating step of heating the colorless ink jetted onto the colored ink after the heating by maintaining the surface temperature of the recording medium at 40&#xb0; C. or higher, and a colorless ink curing step of curing the colorless ink by irradiating the heated colorless ink with an active energy ray and an ink jet recording device.

Ink jet recording method and ink jet recording device

Provided is an ink jet recording method, including a step of jetting, on a substrate, an ink composition A that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and a colorant, and an ink composition B that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and carbon black; and a step of heating the ink composition A and the ink composition B which have been jetted on the substrate, in which absorbance ABSof the ink composition A and absorbance ABSof the ink composition B satisfy Formula (1), and a concentration Mof the high boiling solvent contained in the ink composition A and a concentration Mof the high boiling solvent in the ink composition B satisfy Formula (2).ABS&#x3c;ABS&#x2003;&#x2003;Formula (1)&#x2003;&#x2003;Formula (2)

Ink jet recording method

An actinic ray-curable-type inkjet ink composition for 3D printing includes an acrylate monomer A capable of forming a homopolymer having a glass transition temperature of from 25&#xb0; C. to 120&#xb0; C.; an acrylate monomer B capable of forming a homopolymer having a glass transition temperature of &#x2212;60&#xb0; or higher and lower than 25&#xb0; C.; a bifunctional acrylate oligomer C having a weight-average molecular weight of from 2,000 to 20,000; and an acylphosphine oxide compound, in which the mass content of bifunctional or higher-functional acrylate compounds is 15% by mass or less.

Actinic ray-curable-type inkjet ink composition for 3D printing, three-dimensional modeling method, and actinic ray-curable-type inkjet ink set for 3D printing

An actinic ray-curable-type inkjet ink set for three-dimensional printing and a three-dimensional printing system are provided. The actinic ray-curable-type inkjet ink set for three-dimensional printing includes a white ink composition W and a color ink composition C. The three-dimensional printing system includes printing means for jetting out, a plurality of times, each of a white ink composition W and a color ink composition C using an inkjet head so as to form a color layer on a white modeled object, based on cross-sectional information of a three-dimensional modeled object.

Actinic ray-curable-type inkjet ink set for three-dimensional printing, three-dimensional printing method, and three-dimensional printing system

Provided are an ink set having: a colored ink including a solvent A1 at a content of 30% by mass or more, a polymer C1, and a colorant; and a clear ink including a solvent A2 at a content of 30% by mass or more and a bifunctional or higher-functional (meth)acrylate compound X2 having a weight average molecular weight of 1,000 to 30,000, the clear ink including X2 at a content of 5% by mass or more, in which the solubility of C1 in A2 is 10% by mass or higher; and an image forming method using this ink set.

Ink set and image forming method

An ink jet recording method has an ejection step of ejecting, onto a substrate, an ink composition A that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein, and an ink composition B that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein; and an irradiation step of irradiating, with light, the ink composition A and the ink composition B ejected on the substrate. An absorbance ABSof the ink composition A and an absorbance ABSof the ink composition B satisfy a formula (1), and a concentration Mof the microcapsule included in the ink composition A and a concentration Mof the microcapsule included in the ink composition B satisfy a formula (2).ABS&#x3c;ABS&#x2003;&#x2003;Formula (1)&#x2003;&#x2003;Formula (2)

The object of the present invention is to provide an image formation method that can give an image that is excellent in terms of adhesion to a substrate, blocking resistance of a resulting printed material, and molding suitability, in particular vacuum forming properties, and that can suppress post-molding cracking of a molding. Disclosed is an image formation method comprising, in order, Step a: a step of applying Liquid A to a substrate, Step b: a step of irradiating the applied Liquid A with actinic radiation so as to carry out complete curing or semi-curing up to a degree of cure of at least 90%, Step c: a step of applying Liquid B to a cured layer of the completely cured or semi-cured Liquid A, and Step d: a step of completely curing Liquid A and Liquid B.

Image formation method, decorative sheet, decorative sheet molding, process for producing in-mold molded product, in-mold molded product, and ink set

A radiation curable type ink jet ink set contains a magenta ink which contains C. I. Pigment Red 57:1 in an amount of 2.0% by mass to 4.0% by mass and a yellow ink which contains C. I. Pigment Yellow 185 in an amount of 1.5% by mass to 4.0% by mass. An ink jet recording method includes a jetting step of jetting the yellow ink and/or the magenta ink contained in the radiation curable type ink jet ink set onto a substrate from an ink jet recording head, and a curing step of curing the magenta ink and/or the yellow ink by radiation irradiation.

Radiation curable type ink jet ink set and ink jet recording method

To provide a radiation-curable inkjet ink set that has a sufficiently wide color gamut and is excellent in terms of mechanical strength and substrate adhesion of cured ink, and an inkjet recording method employing the ink set. A radiation-curable inkjet ink set comprises a yellow ink comprising C.I. Pigment Yellow 185 at 1.5 to 2.5 mass %, and a magenta ink comprising C.I. Pigment Red 48:4 at 1.5 to 2.5 mass %.

Radiation-curable inkjet ink set and inkjet recording method

An inkjet recording method includes in sequence an application step of applying a transparent ink or an effect pigment ink onto a recording medium, an image formation step of carrying out image formation by discharging an effect pigment ink or a transparent ink onto the recording medium, and a step of curing the transparent ink and the effect pigment ink above the recording medium, the method including or not including, between the application step and the image formation step, a step of curing the transparent ink or the effect pigment ink, and when it does the transparent ink or the effect pigment being cured at a percentage cure of no greater than 85%, the effect pigment ink including an effect pigment, a polymerization initiator, and a polymerizable compound, and the transparent ink including a polymerization initiator and a polymerizable compound but including substantially no pigment.

Inkjet recording method and printed material

An inkjet ink composition includes (component A) C.I. Pigment Yellow 180, (component B) a fatty acid amide compound, and (component C) a high molecular weight dispersant. The method of producing an inkjet ink composition includes preliminary mixing (component A) C.I. Pigment Yellow 180 and (component B) a fatty acid amide compound to obtain a mixture, and mixing the mixture and (component C) a high molecular weight dispersant.

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Kanagawa, Japan

Tsutomu Umebayashi