Seiko Epson Corporation

The Inctec Inc.

Intec Inc.

Makoto Otsuki

Seiji Mochizuki

Yukio Sugita

Masahiro Nakamura

Mitsuyoshi Tamura

Fujio Akahane

Hiroshige Owaki

Takahiro Kanegae

Keiji Matsumoto

Masahiko Sato

Shigenori Nakagawa

Koji Morikoshi

Ryota Kinoshita

Fumie Yamazaki

Toshinobu Yamazaki

Yoshinori Nakajima

Hironori Matsuoka

Tamayo Okahira

Shinichi Yoshimitsu

Provided is a flow path structure body including: a distribution flow path that is for distributing a liquid from a liquid supply source to a nozzle; an air bubble chamber that is connected to the distribution flow path and that is for storing air bubbles; and an air bubble chamber filter that is arranged to divide a space in the air bubble chamber into a first space that is connected to the distribution flow path and a second space that is connected to the distribution flow path via the first space, the air bubble chamber filter being for collecting foreign matters that have been formed at a gas-liquid interface in the air bubble chamber.

Flow path structure body, liquid ejecting apparatus, and liquid ejecting method

A liquid ejecting head includes a plurality of driving elements that causes an ejection of a liquid from a nozzle by causing a fluctuation in a pressure, a sealing body that seals a first space for accommodating the plurality of driving elements, a case member that forms a second space for surrounding the sealing body, an atmosphere vent that is formed in the case member and through which the second space communicates with the air, a communication hole that is formed in the sealing body and through which the first space communicates with the second space, and a moisture absorbent disposed in the second space.

Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting apparatus comprises: a supply passage through which liquid is supplied from a liquid supply source to a liquid ejecting unit; a filter housing portion provided in the supply passage, a first filter being provided inside the filter housing portion; a circulation passage forming portion, one end of which is connected to a space portion located closer to the liquid supply source than the first filter is, the other end of which is connected on the supply passage to a position closer to the liquid supply source than the first filter is, thereby forming a circulation passage; a foreign object separation unit that works with a flow pump, which is a pump for circulation of the liquid through the circulation passage, to cause a foreign object to come off from the first filter; and a second filter that is detachably provided on the circulation passage.

Liquid ejecting apparatus

A valve includes a seat having a through hole through which ink flows and a valve body that is configured to be in contact with the seat to close the through hole such that the valve is in a closed state and to be separate from the seat to open the through hole such that the valve is in an open state. At least one of the seat and the valve body is configured to move relative to the other of the seat and the valve body while the valve is in the closed state.

Valve, pressure controlling apparatus, liquid ejecting apparatus, and method of opening and closure valve

An oil-based ink composition for inkjet recording capable of exhibiting desired properties of drying after print, rubfastness and re-solubility is achieved by performing solubilization on an acrylic resin which is not easily dissolved conventionally. The oil-based ink composition for inkjet printing comprises glycol ether dialkyl ethers as a prime solvent; and an acrylic resin that results from solution polymerization in a solvent of the glycol ether dialkyl ethers by use of a radical polymerization initiator.

Oil-based ink composition for inkjet recording

The present invention relates to an ink jet ink which is an oil-based white ink for ink jet recording containing (a) titanium oxide having an average particle size of 0.15 to 0.25 &#x3bc;m, (b) a resin, (c) an organic solvent and (d) a nonionic surfactant, wherein the nonionic surfactant comprises at least one member selected from polyoxyethylene alkyl ethers and polyoxyethylene phenyl ethers. According to the invention, there can be provided an oil-based white ink for ink jet recording which is excellent in ejection stability and in recovery properties after standing for a long period of time.

Oil-based white ink for ink jet recording

An oil-based ink composition for ink jet recording of the present invention contains a colorant and at least 50% by weight of a mixed solvent made by mixing from 0.02 to 4 parts by weight of a lactone-type solvent with 1 part by weight of polyoxyethylene glycol dialkyl ether represented by the following general formula (1):R&#x2014;(OCH)&#x2014;OR&#x2003;&#x2003;General Formula (1)(wherein R, Rrepresent alkyl groups having from 1 to 3 carbon atoms and can be the same or different, and n is an integer from 2 to 4). The oil-based ink composition can be suitably used for printing on a polyvinyl chloride substrate and is excellent in all of print quality, printing stability, dry characteristics of printed matter, and storage stability of ink.

Oil-based ink composition for ink-jet recording

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Matsumoto, Japan

Makoto Otsuki