Seiko Epson Corporation

Shugo Hattori

Jun Ito

Naoki Koike

Kenichiro Kubota

Katsuko Aoki

Takayoshi Kagata

Hiroshi Fukumoto

Takeshi Yano

Keiji Iida

Koki Fukasawa

Miho Nakamura

Shigeki Kawada

Shinji Hirata

An ink accommodation body capable of accommodating a sublimation transfer ink injected, via an injection port from, a bottle accommodating the sublimation transfer ink, and a first cover having a cap capable of closing the injection port, and movable between a closing position at which the cap closes the injection port and an opening position at which the cap opens the injection port, are included, and the cap can be inserted into and pulled out of the injection port in an opening direction of the injection port when the first cover moves between the closing position and the opening position, and the first cover has a finger-hooking portion enabling insertion and pulling of the cap with a finger.

Ink accommodation device

A non-aqueous ink jet composition includes a pigment component containing a diketopyrrolopyrrole pigment and an organic solvent. The organic solvent contains a glycol ether. The amount of water in the non-aqueous ink jet composition is 10 mass % or less based on the total amount of the non-aqueous ink jet composition.

Non-aqueous ink jet composition

An ink jet ink composition is provided that can form an image having excellent weather resistance, abrasion resistance, and coloring property. The non-aqueous ink jet ink composition includes a solvent containing at least one cyclic ester compound; and C.I. Pigment Orange-43 (PO-43) as a pigment.

Ink jet ink composition and ink jet recording method

An ink set which is used for sublimation transfer includes a first ink, and a second ink. The first ink has a color after transfer of |a*|&#x2264;10 and |b*|&#x2264;10 in a CIELAB color space, and contains a first disperse dye dispersed by a first dispersion resin. The second ink has a color after transfer of |a*|&#x3e;10 or |b*|&#x3e;10 in the CIELAB color space, and contains a second disperse dye dispersed by a second dispersion resin. A glass transition temperature of the first dispersion resin and is different than that of the second dispersion resin.

Ink set and recording method

A sublimation transfer ink jet ink composition includes: a disperse dye; a dispersing resin; a silicone-based surfactant; and a solubilizer. The ink composition has a surface tension of 30 mN/m or less, and a cloud point of a mixture which includes all the components other than the disperse dye and the dispersing resin is 40&#xb0; C. or more.

Sublimation transfer ink jet ink composition and sublimation transfer ink jet recording method

A non-aqueous ink jet composition includes a pigment at least containing a diketopyrrolopyrrole red pigment, and an organic solvent at least containing a glycol diether represented by Formula (1): RO&#x2014;(RO)&#x2014;Rand a glycol monoether represented by Formula (2): OH&#x2014;(RO)&#x2014;R, wherein, in Formula (1), Rand Reach independently represent an alkyl group having 1 to 7 carbon atoms, Rrepresents an alkylene group having 1 to 3 carbon atoms, and m represents an integer of 1 to 7; and in Formula (2), Rrepresents an alkyl group having 1 to 7 carbon atoms, Rrepresents an alkylene group having 1 to 3 carbon atoms, and n represents an integer of 1 to 7.

A non-aqueous ink jet composition includes a pigment component containing a diketopyrrolopyrrole pigment and an organic solvent. The organic solvent contains glycol ethers. The amount of dissolved nitrogen in the non-aqueous ink jet composition is 90 mass ppm or less based on the total amount of the non-aqueous ink jet composition.

A solvent-based ink jet ink composition accommodating body includes a solvent-based ink jet ink composition which includes a solvent that is a compound represented by a general formula (1) below, and for which a moisture absorption rate is 2 (mass %&#xb7;24 hours) or more at 40&#xb0; C. and a relative humidity of 100% RH; and a container in which the solvent-based ink jet ink composition is accommodated, in which the container is either of at least a container formed of a member having an inorganic oxide layer or a package which accommodates the container in which the solvent-based ink jet ink composition is accommodated and is formed of a member having an inorganic oxide layer:RO&#x2014;(RO)&#x2014;R&#x2003;&#x2003;(1)wherein in the general formula (1), Rand Reach independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms; Rrepresents an alkylene group having 2 to 4 carbon atoms; and m represents an integer of 1 to 6.)

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Shiojiri, Japan

Shugo Hattori