DE10239002B4 - Inkjet printhead with drying device - Google Patents
Inkjet printhead with drying device Download PDFInfo
- Publication number
- DE10239002B4 DE10239002B4 DE10239002A DE10239002A DE10239002B4 DE 10239002 B4 DE10239002 B4 DE 10239002B4 DE 10239002 A DE10239002 A DE 10239002A DE 10239002 A DE10239002 A DE 10239002A DE 10239002 B4 DE10239002 B4 DE 10239002B4
- Authority
- DE
- Germany
- Prior art keywords
- drying device
- drying
- inkjet printhead
- nozzles
- inkjet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00218—Constructional details of the irradiation means, e.g. radiation source attached to reciprocating print head assembly or shutter means provided on the radiation source
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0022—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using convection means, e.g. by using a fan for blowing or sucking air
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Ink Jet (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Inkjet-Druckkopf mit mehreren hintereinander angeordneten Reihen von in Papiertransportrichtung seitlich versetzt angeordneten Einzeldüsen (13, 19) und mit einer Trocknungseinrichtung (15, 17) zum Trocknen einer mittels der Düsen auf dem Papier (1) aufgebrachten Farbe, dadurch gekennzeichnet, dass im Druckkopf zumindest zwischen einigen Reihen der Düsen (13) Trocknungseinrichtungen (15, 17) angeordnet sind, und dass jeder einzelnen Düse (13) unmittelbar eine Trocknungseinrichtung (15, 17) zugeordnet ist.Inkjet printhead with several successively arranged rows of in the paper transport direction laterally staggered individual nozzles (13, 19) and with a Drying device (15, 17) for drying a means of the nozzle the paper (1) applied color, characterized in that in the printhead at least between some rows of nozzles (13) Drying devices (15, 17) are arranged, and that each single nozzle (13) directly associated with a drying device (15, 17) is.
Description
Die vorliegende Erfindung betrifft einen Inkjet-Druckkopf mit Trocknungseinrichtung nach dem Oberbegriff des Patentanspruches 1.The The present invention relates to an inkjet printing head with a drying device according to the preamble of claim 1.
Ein
derartiger Druckkopf ist bekannt aus der Druckschrift
Weiterhin
ist auch aus der Druckschrift
Aus
der Druckschrift
Die
Die
Die
Aufgabe der vorliegenden Erfindung ist es, bei einem Inkjet-Druckkopf nach dem Oberbegriff des Patentanspruches 1 den Trocknungsvorgang zu verbessern.task The present invention is in an inkjet printhead after the preamble of claim 1 to the drying process improve.
Erfindungsgemäß ist dies bei einem Druckkopf mit den Merkmalen des Patentanspruches 1 erreicht. Die Trocknungseinrichtung ist also erfindungsgemäß nicht mehr dem gesamten Druckkopf mit den hintereinander angeordneten Druckmodulen in Papiertransportrichtung nachgeschaltet angeordnet. Die Trocknungseinrichtung ist vielmehr in zahlreiche Teil-Trocknungseinrichtungen aufgeteilt, die jeweils zwischen Druckmodulen angeordnet und dadurch einer Vielzahl von Düsen räumlich unmmittelbar zur Farbtropfentrocknung zugeordnet sind.This is according to the invention achieved in a printhead with the features of claim 1. The drying device is thus according to the invention no longer the entire printhead with the successively arranged printing modules in the paper transport direction arranged downstream. The drying device is rather in many partial drying facilities divided, each arranged between printing modules and thereby a variety of nozzles spatial are assigned unmixed for drip drying.
Um die Gefahr des Ineinanderlaufens benachbarter Inkjet-Farbtropfen vor der Trocknung weiter zu verringern, ist erfindungsgemäß jeder einzelnen Düse des Druckkopfes unmittelbar eine Trocknungseinrichtung zugeordnet.Around the danger of merging neighboring inkjet paint drops before further drying, according to the invention everyone single nozzle the print head immediately associated with a drying device.
Vorteilhafter Weise ist die Trocknungseinrichtung vollständig in den Inkjet-Druckkopf integriert angeordnet, um einen möglichst kompakten Aufbau bereitstellen zu können.Favorable Way the drying device is completely in the inkjet printhead integrated to provide the most compact possible to be able to.
Insbesondere bei hohen Druckgeschwindigkeiten stellt die Trocknung der Inkjet-Farbe ein großes Problem dar. Gemäß einer bevorzugten Ausführungsform werden deshalb UV-Inkjet-Farben eingesetzt und die zur Trocknung verwendete UV-Strahlung über Glasfasern direkt hinter die Farbdüsen geleitet. Mittels UV-Farben in Kombination mit UV-Strahlern kann der Trocknungsvorgang mit ausreichender Geschwindigkeit realisiert werden. Die UV-Farben bleiben so lange flüssig, bis durch die UV-Strahlung eine Polymerisation ausgelöst wird. Der Energieverbrauch kann dabei optimiert werden, wenn jeder Düse eine einzelne geeignet dimensionierte Lichtleitfaser räumlich zugeordnet ist. Aufbautechnisch einfacher kann es jedoch sein, wenn jeweils anstelle der in einer Reihe angeordneten Einzellichtleitfasern ein einziges schmales Lichtleitband verwendet wird, dessen Breite der Breite des Druckmoduls entspricht. Auch kann dadurch der Trocknungsvorgang gegebenenfalls verbessert werden, da die Farbtropfen eines bestimmten Druckmoduls dabei nicht nur durch die diesem unmittelbar zugeordnete Trocknungseinrichtung getrocknet wird, sondern auch durch alle in Papiertransportrichtung nachfolgenden entsprechenden Trocknungseinrichtungen.Especially At high printing speeds, drying sets the inkjet color a big Problem dar. According to a preferred embodiment are therefore UV inkjet inks used and used for drying UV radiation over glass fibers directly behind the paint nozzles directed. Using UV in combination with UV lamps can the drying process realized with sufficient speed become. The UV colors remain liquid until the UV radiation triggered a polymerization becomes. Energy consumption can be optimized if everyone Nozzle one spatially assigned individually suitably dimensioned optical fiber is. However, it can be simpler in construction terms, if ever instead of the arranged in a row Einzelellichtleitfasern only narrow Lichtleitband is used, the width of the Width of the print module corresponds. Also, this can be the drying process be improved if necessary, since the paint drops of a particular Print module not only by this directly assigned Drying device is dried, but also by all in Paper transport direction subsequent appropriate drying equipment.
In Abhängigkeit von den drucktechnischen Gegebenheiten kann auch eine IR-Trocknung bei der Verwendung geeigneter Farben erfolgen.In dependence from the printing conditions can also IR drying when using suitable colors.
Nicht-UV-Farben können insbesondere bei geringeren Druckgeschwindigkeiten verwendet werden, wenn die Trocknungseinrichtung Heißluftleitungen aufweist, deren Luftaustrittsöffnungen im Bereich der Farbaustrittsöffnungen der Düsen angeordnet sind.Non-UV inks can especially at lower print speeds, if the drying device has hot air lines whose Air outlet openings in the area of the paint outlet openings the nozzles are arranged.
Um den Trocknungsvorgang weiter zu verbessern, kann erfindungsgemäß vorgesehen sein, dass der seitliche Versatz der in Papiertransportrichtung jeweils unmittelbar hintereinander angeordneten Düsen möglichst maximal gewählt ist. Denn dadurch ist auch der Abstand in Papiertransportrichtung unmittelbar hintereinander auf das Papier geschossener Farbtropfen maximal.Around can further improve the drying process, can be inventively provided be that the lateral offset the in paper transport direction in each case directly behind one another arranged nozzles as possible maximum selected is. Because of this, the distance in the paper transport direction is immediate a maximum of one drop at a time on the paper.
Nachfolgend ist anhand schematisierter Darstellungen ein Ausführungsbeispiel des erfindungsgemäßen Inkjet-Druckkopfes beschrieben; es zeigen:following is an exemplary embodiment with reference to schematic representations the inkjet printing head according to the invention described; show it:
Ein
Piezo-Inkjet-Druckkopf für
Einfarben- oder Mehrfarbendruck besteht aus mehreren senkrecht zu
einem zu bedruckenden Papier
Beim
dargestellten Druckkopf ist in Papiertransportrichtung hinter jeder
einzelnen Düse
Darüber hinaus ist es alternativ auch möglich, bestimmte katalytisch wirkende Reagenzien durch ein geeignetes Leitungssystem zu führen, die die Trocknung der Druckfarbe entweder initiieren oder unterstützen. Auch kann vorgesehen sein, dass die Trocknungseinrichtung anstelle der Lichtleiter ein Luftleitungssystem für Heißluft aufweist, wobei die Luftaustrittsöffnungen der Luftleitungen jeweils im Bereich der Farbaustrittsöffnungen der einzelnen Düsen angeordnet sind.Furthermore Alternatively, it is also possible certain catalytic reagents through a suitable conduit system respectively, which either initiate or assist the drying of the ink. Also it can be provided that the drying device instead of the Optical fiber having an air duct system for hot air, wherein the air outlet openings the air lines in each case in the area of the paint outlet openings the individual nozzles are arranged.
Die Trocknung kann ebenfalls durch in die Grundplatte eingelassene Laserdioden erfolgen, wobei es möglich wäre, nur entsprechend der gespritzten Tropfen zu trocknen.The Drying can also be done by embedded in the base plate laser diodes where possible would be, only to dry according to the sprayed drops.
- 11
- Papierpaper
- 33
- Grundplattebaseplate
- 55
- Druckmodulprint module
- 77
- Grundkörperbody
- 99
- Piezo-ElementPiezo element
- 1111
- Farbtropfencolor drops
- 1313
- Düsejet
- 1515
- Glasfaserglass fiber
- 1717
- UV-LampeUV lamp
- 1818
- Druckmodulprint module
- 1919
- Düsejet
- 2020
- Farbtropfencolor drops
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10239002A DE10239002B4 (en) | 2001-09-11 | 2002-08-26 | Inkjet printhead with drying device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10144560.1 | 2001-09-11 | ||
DE10144560 | 2001-09-11 | ||
DE10239002A DE10239002B4 (en) | 2001-09-11 | 2002-08-26 | Inkjet printhead with drying device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10239002A1 DE10239002A1 (en) | 2003-03-27 |
DE10239002B4 true DE10239002B4 (en) | 2007-04-12 |
Family
ID=7698526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10239002A Expired - Fee Related DE10239002B4 (en) | 2001-09-11 | 2002-08-26 | Inkjet printhead with drying device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10239002B4 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6786589B2 (en) * | 2002-03-27 | 2004-09-07 | Konica Corporation | Ink jet printer, ink jet head, and image forming method |
JP2007098784A (en) | 2005-10-05 | 2007-04-19 | Konica Minolta Medical & Graphic Inc | Inkjet recorder |
DE102009021634B4 (en) | 2009-05-16 | 2018-08-09 | Ruhlamat Gmbh | Apparatus for the color printing of personalization documents |
US9056465B2 (en) * | 2010-12-21 | 2015-06-16 | Baumer Innotec Ag | Ink-jet print head with integrated optical monitoring of the nozzle function |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6362738A (en) * | 1986-09-04 | 1988-03-19 | Seiko Epson Corp | Ink jet printer |
US5659346A (en) * | 1994-03-21 | 1997-08-19 | Spectra, Inc. | Simplified ink jet head |
DE19636391A1 (en) * | 1996-09-07 | 1998-03-12 | Heidelberger Druckmasch Ag | Drying printed matter produced by ink jet process |
US5732633A (en) * | 1995-04-11 | 1998-03-31 | Nur Advanced Technologies, Ltd. | Apparatus and method for printing |
US5771052A (en) * | 1994-03-21 | 1998-06-23 | Spectra, Inc. | Single pass ink jet printer with offset ink jet modules |
GB2352688A (en) * | 1999-05-27 | 2001-02-07 | Patterning Technologies Ltd | Method of forming a masking or spacer pattern on a substrate using inkjet droplet deposition |
-
2002
- 2002-08-26 DE DE10239002A patent/DE10239002B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6362738A (en) * | 1986-09-04 | 1988-03-19 | Seiko Epson Corp | Ink jet printer |
US5659346A (en) * | 1994-03-21 | 1997-08-19 | Spectra, Inc. | Simplified ink jet head |
US5771052A (en) * | 1994-03-21 | 1998-06-23 | Spectra, Inc. | Single pass ink jet printer with offset ink jet modules |
US5732633A (en) * | 1995-04-11 | 1998-03-31 | Nur Advanced Technologies, Ltd. | Apparatus and method for printing |
DE19636391A1 (en) * | 1996-09-07 | 1998-03-12 | Heidelberger Druckmasch Ag | Drying printed matter produced by ink jet process |
GB2352688A (en) * | 1999-05-27 | 2001-02-07 | Patterning Technologies Ltd | Method of forming a masking or spacer pattern on a substrate using inkjet droplet deposition |
Also Published As
Publication number | Publication date |
---|---|
DE10239002A1 (en) | 2003-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140301 |