Seiko Epson Corporation

Dainippon Screen Mfg. Co., Ltd.

Masayuki Murai

Toru Saito

Masakazu Ohashi

Ryota Miyasa

Hidehiko Komatsu

Takako Sugiyama

Hiroyuki Kaneko

Seiji Mochizuki

Masahiro Nakamura

Yasuhiro Oki

Kosuke Chidate

Kunio Ikuta

Osamu Kitagawa

An ink jet printing ink includes a colorant selected from acid dyes and reactive dyes, an organic solvent, and water. The organic solvent has a solubility parameter value greater than or equal to 11 and less than or equal to 13.5. The organic solvent also has a viscosity, at 20&#xb0; C., greater than or equal to 10 mPa&#xb7;s and less than or equal to 180 mPa&#xb7;s.

Ink jet printing ink, ink jet printing ink set, and printing method

An ink jet textile printing composition set of the invention includes an ink jet textile printing ink composition and a penetrant. The ink jet textile printing ink composition contains a fluorescent dye and water, and the penetrant contains a compound having a lactam structure and water.

Ink jet textile printing composition set and ink jet textile printing method

Provided is a liquid ejecting device that includes an ejecting unit configured to eject liquid and a control unit that performs control to apply the liquid to a medium. The ejecting unit is configured to eject, as the liquid, ink, that contains a color material, and inhibitor for inhibiting penetration of the color material into the medium. The control unit is configured to select a first printing mode in which applying the ink to the medium without applying the inhibitor to the medium, and a second printing mode in which applying the inhibitor to the medium and applying the ink to the medium applied with the inhibitor. The control unit causes an amount of the ink applied per unit area in the second printing mode to be smaller than an amount of the ink applied per unit area in the first printing mode.

Liquid ejecting device and liquid ejecting method

An ink jet ink composition includes one or two or more compounds A selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (4), one or two or more compounds B selected from the group consisting of a compound represented by Formula (2), a compound represented by Formula (3), and a compound represented by Formula (5), and water,  (in Formula (1) to Formula (5), R each independently represents NZor OZ; R' each independently represents a hydrogen atom, a sulfate group, or a sulfate; X each independently represents a hydroxyl group or a hydroxide salt; Y each independently represents a hydrogen atom, a hydroxyl group, or a hydroxide salt; and Z each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms).

Ink jet ink composition and recording method

A treatment liquid composition contains water, 1,2-alkanediol, and an aggregating agent aggregating or thickening components of an ink composition containing a pigment and is used for a printing method performed by causing the ink composition to adhere to cloth by an ink jet method.

Treatment liquid composition and printing method

An ink jet printing method includes attaching an ink composition to a cloth by using a printer head which has a nozzle discharging the ink composition, a pressure chamber for imparting pressure to the ink composition to cause the nozzle to discharge the ink composition, and a connection portion connecting the pressure chamber and the nozzle, and in which a distance of the connection portion is 500 &#x3bc;m or more, the distance of the connection portion being from a portion of the pressure chamber where the ink flows out from a pressure chamber to the nozzle side to the nozzle, in which the ink composition includes the resin as a solid content in the amount of 10% by mass to 26% by mass with respect to the ink composition, the ratio of the total content of the organic solvent to the total content of the solid content of the resin is 0.3 or more, and a sum of the total content of the solid content of the resin and the total content of the organic solvent is 37% by mass or less with respect to the ink composition.

Ink jet printing method and ink jet printing apparatus

A textile printing method includes heating a cloth, and applying an ink composition onto the heated cloth by ejecting the ink composition from an ink jet head. The ink composition contains resin fine particles and has a viscosity of 4.5 mPa&#xb7;s or less at 40&#xb0; C. and a surface tension of 28 mN/m or less at 40&#xb0; C.

Textile printing method

An image forming method includes discharging an ink jet ink composition which contains a diketopyrrolopyrrole pigment and a solvent having a SP value of equal to or lower than 13 by using an apparatus including a piezo ink jet head satisfying the following Expression (1).0.13&#x2266;{(discharge amount per droplet ejection)/(volume of ink pressure chamber)}&#xd7;100&#x2003;&#x2003;(1)

Image forming method

Provided is an ink jet ink for printing including: water; a first dye; and a second dye, in which the first dye is C.I. Acid Orange 33, and the second dye is one or two kinds selected from C.I. Acid Orange 56 and C.I. Acid Orange 94.

Ink jet for printing, ink jet ink set, and printing method

An ink composition for ink jet textile printing contains a reactive dye and water-soluble organic solvents including solvent A and at least one solvent B. Solvent A has a solubility of 10 g or more in 100 g of water at 20&#xb0; C. and has no hydroxy group. Solvent B has a hydroxy group in the molecule thereof and has an IOB value of 2.9 or more and a Zvalue expressed by the following equation (1) of 18 or less. The total content Zof solvent A and solvents B in the ink composition is 3.8% by mass or more. 

Ink composition for ink jet textile printing and ink jet textile printing method

In a head unit of a printer, a head (A) has outlet rows (and) arranged along a first tilt direction and a gap between outlets in the outlet rows (and) is interpolated with a outlet in the outlet rows (and) by a slight tilt. A head (C) adjacent to the head (A) is tilted in a second tilt direction opposite to the first tilt direction. In the printer, a plurality of dots are formed, being aligned on a piece of printing paper in the first tilt direction by performing an ejection control simultaneously for all outlets in each outlet row of the head (A) and subsequently a plurality of dots are formed, being aligned on the piece of printing paper in the second tilt direction by performing an ejection control simultaneously for all the outlets in each outlet row of the head (C), to make both rows of dots continuous. Through this operation, the printer can easily perform high-resolution printing without such a complicate ejection control as to control ejection of ink for each outlet ().

Printer and head unit fabricating method

A film coordinate generator generates film coordinates (u, v), corresponding to the position of an exposure beam on a recording film which is detected by encorders, which is in turn supplied to a screen coodinate generator to be converted into virtual screen coordinates (x, y). A beam control signal generator receives the coordinates (x, y) and an image signal corresponding to the position of the exposure beam to output a beam control signal indicating lighting of the exposure beam when one of the coordinates (x, y) is in between upper and lower limit values, corresponding to the same, which are previously decided for each combination of the other of the coordinates (x, y) and the density value of the image signal.

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Matsumoto, Japan

Masayuki Murai