公开(公告)号：DE69411627D1

公开(公告)日：1998-08-20

申请号：DE69411627

申请日：1994-05-12

Applicant: SEIKO EPSON CORP

Inventor： TANAKA YUJI ,  HAYASHI HIROKO ,  ITANO MASAAKI ,  OUKI YASUHIRO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/16

公开(公告)号：GB2294940B

公开(公告)日：1998-07-01

申请号：GB9522460

申请日：1995-11-02

Applicant: SEIKO EPSON CORP

Inventor： OUKI YASUHIRO ,  KANAYA MIHARU ,  HAYASHI HIROKO ,  TAKEMOTO KIYOHIKO ,  ITANO MASAAKI

IPC: B41J2/01 ,  B41M5/00 ,  C07C245/10 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328 ,  C09K11/02

Abstract: An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, such as a printing head. The ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerin, pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: (I) wherein R1 represents phenyl or naphthyl substituted by a group selected from hydroxyl, -NH2, -SO3M and -COOM, R2 represents carboxyalkyl, alkoxyalkyl, phenyl, or alkanoyl, R3, R4, and R5 represent hydrogen or -SO3M.

公开(公告)号：DE69632027T2

公开(公告)日：2004-08-12

申请号：DE69632027

申请日：1996-11-05

Applicant: SEIKO EPSON CORP

Inventor： HAYASHI HIROKO ,  YOSHIIKE ETSUKO ,  KANAYA MIHARU ,  KOIKE YOSHIYUKI ,  OUKI YASUHIRO ,  OWATARI AKIO

IPC: B41J2/01 ,  C09D11/00 ,  C09D11/328 ,  C09D11/36 ,  C09D11/40 ,  C09B29/30 ,  C09B33/10 ,  C09B35/26 ,  C09B35/34 ,  C09B47/24

公开(公告)号：DE69632027D1

公开(公告)日：2004-05-06

申请号：DE69632027

申请日：1996-11-05

Applicant: SEIKO EPSON CORP

Inventor： HAYASHI HIROKO ,  YOSHIIKE ETSUKO ,  KANAYA MIHARU ,  KOIKE YOSHIYUKI ,  OUKI YASUHIRO ,  OWATARI AKIO

IPC: B41J2/01 ,  C09D11/00 ,  C09D11/328 ,  C09D11/36 ,  C09D11/40 ,  C09B29/30 ,  C09B33/10 ,  C09B35/26 ,  C09B35/34 ,  C09B47/24

公开(公告)号：HK1005288A1

公开(公告)日：1998-12-31

申请号：HK98104408

申请日：1998-05-21

Applicant: SEIKO EPSON CORP

Inventor： MIYASHITA SATORU ,  ATOBE MITSURO ,  KARASAWA YASUSHI ,  TAKEMOTO KIYOHIKO ,  OUKI YASUHIRO

IPC: B41J2/16 ,  B41J ,  G03F ,  B05D

Abstract: An ink-jet printing head used on the ink-jet printer, which is characterized in that a water-repellent layer (21) comprising a uniform layer of polymer including fluorine is formed on the surface of a nozzle from which ink is jetted. Said water-repellent layer can be formed to be solid and homogeneous by the use of polymer soluble in solvent and including fluorine, and thus an ink-jet printing head excellent in persistence of water-repellent characteristic and effect and durability is provided by a comparatively simple method.

公开(公告)号：DE69411627T2

公开(公告)日：1998-12-24

申请号：DE69411627

申请日：1994-05-12

Applicant: SEIKO EPSON CORP

Inventor： TANAKA YUJI ,  HAYASHI HIROKO ,  ITANO MASAAKI ,  OUKI YASUHIRO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/16

公开(公告)号：ITMI952289A1

公开(公告)日：1997-05-07

申请号：ITMI952289

申请日：1995-11-07

Applicant: SEIKO EPSON CORP

Inventor： OUKI YASUHIRO ,  KANAYA MIHARU ,  HAYASHI HIROKO ,  TAKEMOTO KIYOHIKO ,  ITANO MASAAKI

IPC: B41J2/01 ,  B41M5/00 ,  C07C245/10 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328

Abstract: An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, such as a printing head. The ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerin, pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: (I) wherein R1 represents phenyl or naphthyl substituted by a group selected from hydroxyl, -NH2, -SO3M and -COOM, R2 represents carboxyalkyl, alkoxyalkyl, phenyl, or alkanoyl, R3, R4, and R5 represent hydrogen or -SO3M.

公开(公告)号：GB2294940A

公开(公告)日：1996-05-15

申请号：GB9522460

申请日：1995-11-02

Applicant: SEIKO EPSON CORP

Inventor： OUKI YASUHIRO ,  KANAYA MIHARU ,  HAYASHI HIROKO ,  TAKEMOTO KIYOHIKO ,  ITANO MASAAKI

IPC: B41J2/01 ,  B41M5/00 ,  C07C245/10 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328 ,  C09K11/02

Abstract: An ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerine, a pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: wherein R represents phenyl or naphthyl, optionally substituted by a group selected from hydroxyl -NH2, -SO3M and -COOM; R represents carboxyalkyl, optionally substituted alkoxyalkyl, optionally substituted phenyl, or alkanoyl; R , R , and R represent hydrogen or -SO3M; M is hydrogen, an alkali metal cation, or a cation derived from an amine (including ammonia); provided that R is other than phenyl substituted by SO3M if R , R and R are SO3M.

公开(公告)号：FR2726570A1

公开(公告)日：1996-05-10

申请号：FR9513134

申请日：1995-11-07

Applicant: SEIKO EPSON CORP

Inventor： OUKI YASUHIRO ,  KANAYA MIHARU ,  HAYASHI HIROKO ,  TAKEMOTO KIYOHIKO ,  ITANO MASAAKI

IPC: B41J2/01 ,  B41M5/00 ,  C07C245/10 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328

Abstract: An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, such as a printing head. The ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerin, pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: (I) wherein R1 represents phenyl or naphthyl substituted by a group selected from hydroxyl, -NH2, -SO3M and -COOM, R2 represents carboxyalkyl, alkoxyalkyl, phenyl, or alkanoyl, R3, R4, and R5 represent hydrogen or -SO3M.

公开(公告)号：DE69736991D1

公开(公告)日：2007-01-04

申请号：DE69736991

申请日：1997-01-29

Applicant: SEIKO EPSON CORP

Inventor： SUZUKI KAZUNAGA ,  TSUKADA KENJI ,  KOIKE YOSHIYUKI ,  SEINO TAKEO ,  OUKI YASUHIRO ,  KOSUGI YASUHIKO ,  SARUTA TOSHIHISA ,  SAKURAI HIDETAKA

IPC: B41J2/14 ,  B41J2/045

Abstract: An ink-jet recording apparatus having an ink-jet recording head (7, 8) including pressure generating chambers (49) communicatively connected to a nozzle opening (52) and a reservoir (50), pressure generating means (42) for pressurising the pressure generating chambers (49), and control means for applying drive signals corresponding to print data to the recording head and for minutely vibrating meniscuses of ink in the nozzle openings to such an extent as to not eject ink droplets during a nonprint period. The control means ejects ink droplets from the nozzle openings in accordance with print data during printing operations, and minutely vibrates meniscuses of ink formed at the nozzle openings a pre-set period of time before or after the discharging of the ink droplets in a printing operation. Minutely vibrating means (23, 42, 68) are provided having a first operation mode in which the meniscuses of the nozzle openings are vibrated plural times in succession for a predetermined time period, and a drive signal for discharging ink droplets is applied to said pressure generating means after said meniscuses are placed in a state capable of discharging ink droplets.