Fujifilm Corporation

Yushi Hongo

Ryuji Shinohara

Masaharu Kawai

Taiga Mizoe

Hiroshi Yamamoto

Toshiyuki Makuta

Misato Sasada

Kensuke Masui

Masao Ikoshi

Yosuke Yamamoto

Koji Naoe

Toshihiro Kariya

Yuuichi Hayata

Naoharu Kiyoto

Kazuhiro Hamada

Kosuke Watanabe

An ink composition for performing printing on an impermeable base material, including water (A), a resin (B) which is at least one selected from the group consisting of an acrylic resin, a polyester resin, and a urethane resin, and an organic solvent (C) which has a boiling point of 250° C. or lower, has no nitrogen atom, and satisfies Expression (C1), in which a total content of the organic solvent (C) is in a range of 0.01% by mass to 5.0% by mass with respect to a total amount of the ink composition. In Expression (C1), SPrepresents an SP value of a main resin in the resin (B) in an MPaunit, SPrepresents an SP value of the organic solvent (C) in the MPaunit, and |SP−SP| represents an absolute value of a difference between SPand SP:|SP−SP|≤10.0  Expression (C1).

Ink composition for performing printing on impermeable base material and image recording method

Provided is an image recording method including a step of preparing an ink containing water and a white pigment, and a step of jetting the ink from an ink jet head in a liquid droplet amount of 1.0 pL or greater to apply the ink onto a base material, in which in a case where an ink jetting surface of the ink jet head is immersed in the ink in a vertically standing state for 2 seconds, the jetting surface is pulled up from the ink in the state, and the jetting surface is allowed to stand in the state for 1 minute, a ratio of an area of a region to which the ink is adhered to an area of the jetting surface is 40% by area or less.

Image recording method

An inkjet ink composition includes water (A), a resin (B), and an organic solvent (C) which has a boiling point of 250° C. or lower, satisfies Expression (C1), and has a nitrogen atom, in which a content mass ratio of the organic solvent (C) to a main resin in the resin (B) is 0.01 or greater and less than 2.0. In Expression (C1), SPrepresents an SP value of the main resin in the resin (B) in a unit of MPa, SPrepresents an SP value of the organic solvent (C) in the unit of MPa, and |SP−SP| represents an absolute value of a difference between SPand SP.|SP−SP|≤10.0  Expression (C1)

Inkjet ink composition and image recording method

Provided is an image recording method including an applying step of applying a pretreatment liquid containing water and an aggregating agent onto an impermeable base material and applying an ink containing water and a colorant onto a region of the impermeable base material where the pretreatment liquid has been applied, and a drying step of drying the ink applied onto the region to obtain an image, in which the drying step includes blowing of hot air at a wind speed of greater than 15 m/s to the ink applied onto the region, and in a case where the number of grams of the ink applied per 1 min an image area with a density of 100% is defined as X, and the number of grams of the pretreatment liquid applied per 1 min the image area with a density of 100% is defined as Y, a viscosity of a kneaded material obtained by adding (6.5Y/X) mg of the pretreatment liquid to 10 g of the ink and defoaming and kneading the mixture at 200 rpm for 5 minutes is in a range of 30 mPa·s to 500 mPa·s.

An ink set is an ink set including a treatment liquid having a pH of 4.5 or less or 9.5 or greater, and an ink containing a compound A which generates gas in an environment of a pH of 4.5 or less or 9.5 or greater, a resin, water, and a white pigment and having a pH of greater than 4.5 and less than 9.5, in which a ratio of a content mass of the white pigment to a content mass of the compound A in the ink is 1 or greater and 160 or less.

Ink set, image recording method, and image 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 is an ink composition used for image formation by an ink jet method. The ink composition includes plate-like metal particles that include a metal element having a standard oxidation-reduction potential nobler than &#x2212;1.65 V, that have an average equivalent circle diameter of 10 nm or more and less than 500 nm, and that have an average aspect ratio, which is the ratio of the average equivalent circle diameter to an average thickness, of 3 or more. Also provided are an ink set, an image forming method, and a printed matter.

Ink composition, ink set, image forming method, and printed matter

An object of the present invention is to provide an organic semiconductor composition, which makes it possible to obtain an organic semiconductor film having high mobility and being excellent in film uniformity and heat resistance, and a method for manufacturing an organic semiconductor element. The organic semiconductor composition of the present invention contains an organic semiconductor as Component A and an organic solvent, which is represented by Formula B-1 and has a melting point of equal to or lower than 25&#xb0; C. and a boiling point of equal to or higher than 150&#xb0; C. and equal to or lower than 280&#xb0; C., as Component B, in which an ionization potential of Component A is equal to or higher than 5.1 eV. In the formula, X represents O, S, S&#x2550;O, O&#x2550;S&#x2550;O, or NR, Yto Yeach independently represent NRor CRR, R, R, R, and Reach independently represent a hydrogen atom or a substituent, and n represents 1 or 2. 

Organic semiconductor composition and method for manufacturing organic semiconductor element

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.

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Kanagawa, Japan

Yushi Hongo