WO2012101918A1 - Dispositif d'impression à jet d'encre - Google Patents

Dispositif d'impression à jet d'encre Download PDF

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Publication number
WO2012101918A1
WO2012101918A1 PCT/JP2011/078675 JP2011078675W WO2012101918A1 WO 2012101918 A1 WO2012101918 A1 WO 2012101918A1 JP 2011078675 W JP2011078675 W JP 2011078675W WO 2012101918 A1 WO2012101918 A1 WO 2012101918A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
ink tank
print head
printing apparatus
tank
Prior art date
Application number
PCT/JP2011/078675
Other languages
English (en)
Japanese (ja)
Inventor
四朗 一ノ瀬
克己 土肥
富夫 中井
Original Assignee
東伸工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東伸工業株式会社 filed Critical 東伸工業株式会社
Priority to EP11856705.6A priority Critical patent/EP2669089A1/fr
Priority to CN201180065878.8A priority patent/CN103347702A/zh
Publication of WO2012101918A1 publication Critical patent/WO2012101918A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
    • B41J2/16523—Waste ink transport from caps or spittoons, e.g. by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1707—Conditioning of the inside of ink supply circuits, e.g. flushing during start-up or shut-down

Definitions

  • the present invention relates to an inkjet printing apparatus.
  • an object of the present invention is to provide an ink jet textile printing apparatus that can effectively use unused ink ejected by an idle ejection operation or the like.
  • An inkjet printing apparatus is an inkjet printing apparatus that performs printing by ejecting ink onto a material to be printed, and includes a first ink tank that stores ink, and ink that is supplied from the first ink tank. A second ink tank to be stored; a print head having a nozzle for discharging the ink supplied from the second ink tank to a printed material; and the second ink tank disposed between the second ink tank and the print head. And a degassing means for removing bubbles in the ink, and a recycle flow path for returning unused ink ejected from the nozzles of the print head to the second ink tank.
  • the ink jet printing apparatus includes the recycling flow path for returning unused ink ejected from the nozzles of the print head to the second ink tank by an idle ejection operation for preventing clogging of the nozzles.
  • the ink recycled in this way may contain bubbles or the like.
  • deaeration means is installed between the second ink tank and the print head according to the present invention, Ink can be supplied to the printhead.
  • the second ink tank can be an open type ink tank in which the ink contacts the atmosphere. .
  • the ink-jet textile printing apparatus can take various configurations.
  • the pressure loss of the ink in the deaeration means is 0.1 kPa or less.
  • the resistance from the second ink tank to the print head can be reduced, and ink can be supplied smoothly by the water head method.
  • the deaeration means is preferably an external perfusion type.
  • first ink tank, the second ink tank, and the deaeration means can be connected in series in this order.
  • the first ink tank can also be an open ink tank.
  • an ink pressurizing pump that supplies pressurized ink to the nozzles of the print head. According to this ink pressurizing pump, the ink in the nozzles of the print head can be forcibly discharged, and nozzle clogging can be reliably prevented.
  • a suction pump that sucks the ink in the nozzles of the print head.
  • the ink jet textile printing apparatus According to the ink jet textile printing apparatus according to the present invention, it is possible to effectively use unused ink ejected by an idle ejection operation or the like.
  • FIG. 1 is a schematic view of an inkjet printing apparatus according to the present embodiment.
  • FIG. 2 is a partial cross-sectional view of the deaeration module according to the present embodiment.
  • the ink jet textile printing apparatus 1 has the ink stored in the first ink tank 2 supplied to the second ink tank 3 and temporarily stored in the second ink tank 3. . Then, after the ink in the second ink tank 3 is deaerated by the deaeration module 4, the ink is supplied to the print head 5, and printing is performed by the print head 5 ejecting ink onto the object to be printed.
  • the inkjet textile printing apparatus 1 further includes a suction pad 6, a suction pump P1, and an ink pressure pump P2 as clogging prevention means for preventing clogging of the nozzles of the print head 5.
  • a filter unit 7 is also provided for removing dust and the like in unused ink ejected from the print head 5 by the idle ejection operation by the clogging prevention means.
  • the first ink tank 2 is an open type ink tank that stores ink to be supplied to the second ink tank 3. When the ink in the first ink tank 2 runs out, the first ink tank 2 is replaced with a new one. However, the first ink tank 2 can be replenished with ink.
  • the first ink tank 2 is an open type, it may be a sealed type having a structure that does not allow ink to come into contact with the atmosphere.
  • the capacity of the first ink tank 2 is not particularly limited, but is generally about 5 to 10 L.
  • the second ink tank 3 is connected to the first ink tank 2 via an ink supply pump P3 and a three-way valve V1.
  • the second ink tank 3 is an open type ink tank that temporarily stores the ink supplied from the first ink tank 2 and the ink discharged by the idle discharge operation, and the print head 5 is formed by a water head method. Ink is being supplied.
  • the second ink tank 3 is provided with a liquid level detection sensor 31 for detecting the ink level in order to control the water head. When the liquid level detection sensor 31 detects that the liquid level of the ink stored in the second ink tank 3 has fallen below the set value due to printing, the ink supply pump P3 is activated to remove the ink level from the first ink tank 2. Ink is supplied to the second ink tank 3.
  • the second ink tank 3 is an open type, but may be a sealed type.
  • the second ink tank 3 has a smaller capacity than the first ink tank 2 described above, and is generally about 70 to 100 mL.
  • the deaeration module 4 is installed between the second ink tank 3 and the print head 5, and removes bubbles present in the ink sent from the second ink tank 3 to the print head 5.
  • the deaeration module 4 is an external perfusion type, and a plurality of hollow fibers 42 are accommodated in a hollow cylindrical body 41.
  • a vacuum pump P4 is connected to at least one of the upper end and the lower end of each hollow fiber 42.
  • the ink sent into the cylindrical body 41 is configured to flow out of the hollow fiber 42 and be deaerated.
  • the ink sent from the second ink tank 3 into the cylindrical body 41 through the supply port 43 is sent to the center of the cylindrical body 41 and goes to the outside in the radial direction. Air bubbles contained in the ink are sucked into each hollow fiber 42 by contacting the outer surface of the hollow fiber 42.
  • the deaerated ink is discharged from the cylindrical body 41 through the discharge port 44 and sent to the print head 5.
  • the pressure loss of ink in the deaeration module 4 is preferably 0.1 kPa or less.
  • the vacuum pump P4 corresponds to the decompression means of the present invention.
  • the print head 5 discharges ink sent from the second ink tank 3 via the deaeration module 4 to the object to be printed, and a known print head having a plurality of nozzles can be used. Between the print head 5 and the deaeration module 4, two three-way valves V2 and V3, a pinch valve V4 installed between the three-way valves V2 and V3, and an ink pressurizing pump P2 are installed. Has been.
  • the ink pressurizing pump P2 is connected to a flow path connecting the print head 5 and the deaeration module 4 via the three-way valves V2 and V3.
  • the pinch valve V4 is in an open state, and ink from the second ink tank 3 is printed via the three-way valves V2, V3 and the pinch valve V4 without passing through the ink pressurizing pump P2. It is sent to the head 5.
  • the pinch valve V4 is closed.
  • the ink from the second ink tank 3 is sent to the ink pressurizing pump P2 via the three-way valves V2 and V3, and the high-pressure ink is sent to the nozzles of the print head 5, and the ink in the nozzles Is forcibly discharged to prevent nozzle clogging.
  • the ink discharged by the ink pressurizing pump P2 is discharged to a suction pad 6 described later.
  • a suction pad 6 and a suction pump P1 are installed as means for eliminating nozzle clogging of the print head 5.
  • the suction pad 6 is configured to seal the nozzle surface on which the nozzles of the print head 5 are formed.
  • the suction pump P ⁇ b> 1 By operating the suction pump P ⁇ b> 1 with the suction pad 6 sealing the nozzle surface of the print head 5, the ink in the nozzles of the print head 5 is forcibly sucked and discharged to the suction pad 6.
  • the suction pad 6 is removed from the print head 5 at the time of textile printing.
  • the suction pad 6 can also serve as a cap that prevents the ink in the nozzles from drying by covering the nozzles of the print head 5.
  • an ink discharge tube 61 is connected to the suction pad 6, and when the open / close means (not shown) such as an open / close valve installed in the ink discharge tube 61 is closed, the print head 5 is as described above.
  • the open / close means such as an open / close valve installed in the ink discharge tube 61
  • the print head 5 is as described above.
  • the opening / closing means is opened, the ink in the nozzles of the print head 5 is not sucked but only the ink in the suction pad 6 is sucked.
  • the flow path from the suction pad 6 to the second ink tank 3 corresponds to the recycle flow path of the present invention.
  • the ink discharged to the suction pad 6 is returned to the second ink tank 3 through the filter unit 7, the check valve V5, and the three-way valve V1. By passing through the filter unit 7, dust and the like in the ink are removed.
  • the check valve V5 since the check valve V5 is provided, it is possible to prevent the backflow of ink, and the ink sent from the first ink tank 2 to the second ink tank 3 is sent to the filter unit 7 side. It is prevented.
  • the ink supply pump P3 is stopped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ink Jet (AREA)
  • Coloring (AREA)

Abstract

L'invention a pour objectif de produire un dispositif d'impression à jet d'encre pouvant utiliser efficacement l'encre inutilisée rejetée par une opération de rejet inutile, etc. Un dispositif d'impression à jet d'encre (1) destiné à imprimer un objet devant être imprimé par rejet d'encre, est pourvu : d'un premier réservoir d'encre (2) destiné à stocker de l'encre ; d'un second réservoir d'encre (3) destiné à stocker l'encre provenant du premier réservoir d'encre (2) ; d'une tête d'impression (5) comportant une buse qui rejette l'encre provenant du second réservoir d'encre (3) sur l'objet à imprimer ; d'un module de désaération (4) placé entre le second réservoir d'encre (3) et la tête d'impression (5) pour retirer les bulles d'air contenues dans l'encre ; et d'un chemin d'écoulement de recyclage destiné à ramener l'encre inutilisée rejetée d'une buse de la tête d'impression (5) jusqu'au second réservoir d'encre (3).
PCT/JP2011/078675 2011-01-24 2011-12-12 Dispositif d'impression à jet d'encre WO2012101918A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11856705.6A EP2669089A1 (fr) 2011-01-24 2011-12-12 Dispositif d'impression à jet d'encre
CN201180065878.8A CN103347702A (zh) 2011-01-24 2011-12-12 喷墨印染装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-011786 2011-01-24
JP2011011786A JP2012152935A (ja) 2011-01-24 2011-01-24 インクジェット捺染装置

Publications (1)

Publication Number Publication Date
WO2012101918A1 true WO2012101918A1 (fr) 2012-08-02

Family

ID=46580501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/078675 WO2012101918A1 (fr) 2011-01-24 2011-12-12 Dispositif d'impression à jet d'encre

Country Status (4)

Country Link
EP (1) EP2669089A1 (fr)
JP (1) JP2012152935A (fr)
CN (1) CN103347702A (fr)
WO (1) WO2012101918A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6851800B2 (ja) * 2016-01-08 2021-03-31 キヤノン株式会社 液体吐出装置および液体吐出ヘッド
JP2019130511A (ja) * 2018-02-02 2019-08-08 コニカミノルタ株式会社 脱気装置及びインクジェット記録装置
DE102021119858A1 (de) * 2021-07-30 2023-02-02 Koenig & Bauer Ag Verfahren zum Wechsel mindestens eines Druckfluids und Verfahren zur Reinigung und/oder Wartung eines Druckfluidversorgungssystems und Druckmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07246710A (ja) 1994-03-09 1995-09-26 Canon Inc 液体噴射装置
JP2001328283A (ja) * 2000-05-23 2001-11-27 Canon Aptex Inc インクジェット記録装置
JP2008049582A (ja) * 2006-08-24 2008-03-06 Sii Printek Inc インク供給装置およびインクジェット記録装置
JP2008114170A (ja) * 2006-11-06 2008-05-22 Mitsubishi Rayon Eng Co Ltd 脱気用中空糸膜モジュール及び脱気装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11209670A (ja) * 1998-01-28 1999-08-03 Mitsubishi Rayon Co Ltd インクジェットプリンタ用インク並びにインクジェットプリンタ用インク中の溶存ガスの除去方法及びインクジェットプリンタ用インクカートリッジの製造方法
JP5526504B2 (ja) * 2008-07-28 2014-06-18 セイコーエプソン株式会社 液体噴射装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07246710A (ja) 1994-03-09 1995-09-26 Canon Inc 液体噴射装置
JP2001328283A (ja) * 2000-05-23 2001-11-27 Canon Aptex Inc インクジェット記録装置
JP2008049582A (ja) * 2006-08-24 2008-03-06 Sii Printek Inc インク供給装置およびインクジェット記録装置
JP2008114170A (ja) * 2006-11-06 2008-05-22 Mitsubishi Rayon Eng Co Ltd 脱気用中空糸膜モジュール及び脱気装置

Also Published As

Publication number Publication date
CN103347702A (zh) 2013-10-09
JP2012152935A (ja) 2012-08-16
EP2669089A1 (fr) 2013-12-04

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