Fujifilm Corporation

Fuji Photo Film Company, Limited

Tomoyuki Ohzeki

Masao Ikoshi

Jun Matsumoto

Kohzaburoh Yamada

Eiichi Okutsu

Katsutoshi Yamane

Hiroyuki Mifune

Tadashi Inaba

Takanori Hioki

Keiichi Tateishi

Katsuyuki Watanabe

Yoshimitsu Arai

Kaoru Tojo

Yutaka Oka

Minoru Sakai

Terukazu Yanagi

Ichizo Toya

Seiichi Yamamoto

Fumito Nariyuki

Takahiro Goto

Naotaka Wachi

Sumito Yamada

Takashi Katoh

Shoji Yasuda

Mika Imamura

Shinji Ikari

The present invention provides an inkjet image forming method including:

Inkjet image forming method

The present invention provides an image forming method and an ink composition whereby deterioration of a head plate, which is formed of silicon, is suppressed, and an image with higher precision is formed stably, the ink composition including an inorganic silicate compound and being ejected to form an image from an ink-jet head having a nozzle plate where a CFCHSiClfilm (fluorocarbon film) is provided on the surface thereof at a side toward the ink ejection direction of a nozzle.

Image forming method and ink composition

The invention provides an ink composition including water, a colorant, a water-soluble organic solvent, a surfactant and a water-soluble silicate, the water-soluble silicate being comprised in an amount of from 0.0001% by mass to 0.5% by mass with respect to a total mass of the ink composition, and the water-soluble organic solvent including a water-soluble organic solvent having a value of solubility parameter (SP) of 27.5 or less in an amount of 40% by mass or more with respect to a total mass of the water-soluble organic solvent; an ink composition including a water-soluble alkali metal silicate and a pigment coated with a water-insoluble resin, the water-insoluble resin including a structural unit having an acidic group; and an ink composition including a water-soluble alkali metal silicate, self-dispersing polymer particles, and a pigment.

Ink composition, ink set, and image forming method

The invention provides an image forming method having at least: applying, onto a recording medium, an ink composition containing at least a water-soluble organic solvent, a pigment, a polymer particle and water; and removing at least a part of the water-soluble organic solvent from the ink composition on the recording medium. The water-soluble organic solvent contains at least a water-soluble organic solvent having a vapor pressure of less than 10 Pa at 20&#xb0; C., a boiling temperature of less than 260&#xb0; C., and an SP value of less than 25, at a content of 30 mass % or more with respect to the total water-soluble organic solvent content of the ink composition.

Image forming method

The present invention provides an ink set including an ink composition and a maintenance liquid that removes from a head nozzle surface a substance that is derived from the ink composition and that adheres to the head nozzle surface, the ink composition including a pigment coated with a water-insoluble polymer formed by copolymerizing a monomer mixture including a styrene macromer; polymer particles; a water-soluble organic solvent; and water.

Ink set and image formation method

The present invention provides an image forming method and an ink composition used in the method by which deterioration of a head plate which is formed of silicon is suppressed and more precise images are stably formed, where ink containing an inorganic silicate compound is ejected to form an image from an inkjet head having a nozzle plate where SiOfilm is provided on a surface thereof at a side toward the ink ejection direction of the nozzle.

The present invention provides an image forming method including ejecting an ink containing a silicic acid compound from an inkjet head, whereby deterioration of the head members is suppressed and a high precision image is formable stably over a long-term, the inkjet head being equipped with plural liquid droplet ejecting elementshaving nozzles, pressure chamber, supply channel, and piezoelectric element, which transforms vibrating platethat constitutes a wall of pressure chamber, and an ink circulation unit which has common flow channelthat is connected with each of plural liquid droplet ejecting elementsvia supply channels, and common circulation channelthat is connected with each of plural liquid droplet ejecting elementsvia reflux channels, that supplies the ink to plural liquid droplet ejecting elements from common flow channel, and that circulates the ink to common circulation channel.

An ink set for ink jet recording containing an ink composition containing a pigment, polymer particles, a water-soluble organic solvent, a lubricant, and water and a reaction liquid that forms an aggregate by contacting with the ink composition and an ink jet recording method using the same are provided.

Ink set for ink jet recording and ink jet recording method

The invention provides an inkjet ink composition including a pigment and colloidal silica, the pigment being covered with a water-insoluble resin including a constituent unit having an acidic group, with which rub resistance of images formed and ink discharge reliability are excellent and deterioration of liquid repellency of an inkjet head member is suppressed.

Ink composition, ink set and image forming method

The present invention provides an inkjet ink composition including at least one water-soluble organic solvent, water, at least one colorant, and at least one colloidal silica, wherein 40% or more by mass of a total content of the water-soluble organic solvent has an SP value of 27.5 or less, and the inkjet ink composition having excellent discharge reliability, and suppressing curling of prints formed with the ink and deterioration of liquid repellency of an inkjet head member.

Ink composition, ink set and inkjet image forming method

An inkjet recording method of the invention includes at least: applying, onto a recording medium, an ink composition containing at least a pigment, a copolymer containing at least a fluorine atom, a water-soluble organic solvent, and water, thereby forming an image; drying the image by removing the water-soluble organic solvent and at least a part of the water from the recording medium; and heat-fixing the image onto the recording medium by bringing a surface of the image into contact with a heating member, and may further include other processes.

Inkjet recording method

The present invention provides an inkjet ink composition including: self-dispersing polymer particles, each of the self-dispersing polymer particles including a structural unit derived from a hydrophilic monomer and a structural unit derived from a hydrophobic monomer; colloidal silica; and colorant particles, the inkjet ink composition having excellent dischargeability and suppressing the deterioration of the liquid repellency of an inkjet head member.

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Kanagawa, Japan

Tomoyuki Ohzeki