Canon Kabushiki Kaisha

Shinsuke Tsuji

Yuichiro Kanasugi

Kenji Shinjo

Kouji Harada

Yutaka Kurabayashi

Shoji Shiba

Yoshikazu Saito

Hiroe Ishikura

Yukako Tamanuki

Masahiko Kubota

Takashi Imai

Takashi Saito

Kazuhiro Asai

Norio Ohkuma

Takumi Suzuki

Tamaki Sato

Maki Kato

Akihiko Okano

Tsuyoshi Kanke

Hikaru Ueda

Arihiro Saito

Atsuhito Yoshizawa

Yoshitaka Torisaka

Itaru Tsuji

Ryota Takeuchi

A method of forming an image on a recording medium using an ink jet recording apparatus. The ink jet recording apparatus includes a recording head in which a plurality of recording element substrates is arranged to form joint portions and a plurality of wipers is arranged to form wiper overlapping portions. The method includes ejecting a first ink from a first ejection orifice array, ejecting a second ink from a second ejection orifice array, and the plurality of recording element substrates with the plurality of wipers. The first ejection orifice array is wiped and then the second ejection orifice array is wiped. At least a part of the wiper overlapping portion wipes the joint portion. A dynamic surface tension (&#x3b3;) of the first ink is equal to or more than a static surface tension (&#x3b3;) of the second ink.

Ink jet recording method and ink jet recording apparatus

Inkjet recording is performed by using an inkjet recording apparatus including an ink circulation channel for circulating a first ink, an ink supply channel for supplying a second ink into the ink circulation channel, and a recording head communicating with the ink circulation channel. The apparatus is configured to eject an aqueous ink including the first ink and the second ink from the recording head, thereby recording an image on a recording medium. The content (% by mass) of water in the first ink and the content (% by mass) of water in the second ink differ from each other by 2.00% by mass or more. The first ink contains a pigment, and the second ink contains a first water-soluble organic solvent having a log P value of &#x2212;1.10 or more and a surfactant.

Inkjet recording method and inkjet recording apparatus

Inkjet recording is performed by using an inkjet recording apparatus including an ink circulation channel for circulating a first ink, an ink supply channel for supplying a second ink into the ink circulation channel, and a recording head communicating with the ink circulation channel. The apparatus is configured to eject an aqueous ink including the first ink and the second ink from the recording head, thereby recording an image on a recording medium. The content (% by mass) of water in the first ink and the content (% by mass) of water in the second ink differ from each other by 2.00% by mass or more. The first ink contains a resin, and the second ink contains a first water-soluble organic solvent having a Log P value of less than &#x2212;1.10.

An image-forming method includes a reaction solution-applying step of applying a reaction solution containing a thickening agent and a colorant-aggregating component aggregating a colorant in ink to an intermediate transfer medium, a first ink-applying step of applying a first ink to the intermediate transfer medium provided with the reaction solution, a second ink-applying step of applying a second ink to the intermediate transfer medium provided with the first ink, and a transfer step of transferring an intermediate image formed on the intermediate transfer medium provided with the second ink to a recording medium. An ink layer formed on the intermediate transfer medium by applying the first ink thereto has a yield value of 0.5 Pa or more.

Image-forming method

The invention provides an aqueous liquid composition containing a water-soluble monomer, a photopolymerization initiator and an aqueous medium and further containing a polymer emulsion, wherein the water-soluble monomer is a monomer that has two or more ethylenically unsaturated bonds and is curable with an active energy ray.

Liquid composition, ink jet recording method, ink jet recording apparatus and recorded image

Provided is a transfer ink jet recording method, which provides satisfactory transferability and satisfactory wet scratch resistance of a final image even at high printing duty. The transfer ink jet recording method includes using an aggregation liquid, in which the aggregation liquid includes a polymer compound including one of a polyamino acid and a polyamino acid salt each having an amino group, each of which is obtained by polymerization of an amino acid compound represented by the general formula (1). 

Transfer ink jet recording method

A transfer type inkjet recording method uses an aggregation liquid, in which the aggregation liquid contains a polymer compound having either one of a polysaccharide having an amino group or a polysaccharide salt having an amino group.

Transfer type inkjet recording method

An image recording method includes applying a liquid composition containing a reaction agent to a region of an intermediate transfer member, applying an ink containing a coloring material to at least part of the region to form an intermediate image, and transferring the intermediate image to a recording medium. The intermediate transfer member has a surface on which water forms a contact angle of 40 degrees or more with the surface. The reaction agent precipitates or aggregates the coloring material. The liquid composition has a pH of 6.0 or less and contains a polyether siloxane compound expressed by the following general formula: 

A transfer type inkjet recording method uses an aggregation liquid, in which the aggregation liquid contains a polyurethane resin having an amino group and the polyurethane resin has a number average molecular weight of 10,000 or more and 1,000,000 or lower and an amine value of 0.5 mmol/g or more and 3.0 mmol/g or lower.

The invention provides an active energy ray curable ink jet recording liquid composition including a radically polymerizable compound, an active energy ray polymerization initiator, a wax and water, wherein the melting point of the wax is 40&#xb0; C. or more and 120&#xb0; C. or less.

Active energy ray curable ink jet recording liquid composition and ink jet recording method using the same

A hyper branched type epoxy resin including a polymerized substance generated from a polyfunctional epoxy compound represented by a formula (I), wherein the polyfunctional epoxy compound represented by the formula (I) includes group A having aromatic hydroxyl group, a carboxyl group or aromatic ring having an amino group, and epoxy containing group B having an epoxy group; wherein R represents an organic group of (n+1) valence, and n represents 2 or 3.A-R&#x2014;(B)&#x2003;&#x2003;(I)

Polyfunctional epoxy compound, epoxy resin, cationic photopolymerizable epoxy resin composition, micro structured member, producing method therefor and liquid discharge head

The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): wherein A is a hydrogen atom or a monovalent organic residue which may be substituted, Rand Rare, independently of each other, a divalent organic group which may be substituted, E is an amide bond, Ris a cyclic linking group having a carbonyl group and an unsaturated carbon-carbon bond adjacent to the carbon atom of the carbonyl group, m is a number of 0 or greater, n is a number of 2 or greater, m+n is 3, and Z is a secondary or tertiary amino bond structure, with the proviso that the amino bond may be a salt of a secondary or tertiary amine, and a liquid cartridge.

Active energy ray curable liquid composition and liquid cartridge

A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 &#x3bc;m thickness of about 0.02 to about 0.07 for light used for the exposure.

Growing community of inventors

Kawasaki, Japan

Shinsuke Tsuji