EP1208992A2 - Tintenstrahldrucker mit einem Piezo-Druckkopf zum Ausstossen von Lactat-Tinte auf ein unbeschichtetes Druckmedium - Google Patents
Tintenstrahldrucker mit einem Piezo-Druckkopf zum Ausstossen von Lactat-Tinte auf ein unbeschichtetes Druckmedium Download PDFInfo
- Publication number
- EP1208992A2 EP1208992A2 EP01127078A EP01127078A EP1208992A2 EP 1208992 A2 EP1208992 A2 EP 1208992A2 EP 01127078 A EP01127078 A EP 01127078A EP 01127078 A EP01127078 A EP 01127078A EP 1208992 A2 EP1208992 A2 EP 1208992A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- printing
- area
- printing medium
- ink
- 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.)
- Granted
Links
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 title claims description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 238000007639 printing Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 4
- 238000003303 reheating Methods 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 55
- 239000012876 carrier material Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003086 colorant Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 230000006750 UV protection Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000003893 lactate salts Chemical class 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- 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
- B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
- B41J11/00244—Means for heating the copy materials before or during printing
Definitions
- Inkjet printers also known as inkjet printers, currently print primarily on so-called coated material.
- the properties of the coating material including top coating called, determine the printability of the carrier material and the durability of the printed image.
- the material coating ensures that the ink is absorbed as quickly as possible a sharp image is created and this image against environmental influences and light if possible is stable.
- the printed image must also be dry and smudge-proof as quickly as possible.
- the carrier material itself usually only determines the mechanical properties of the medium.
- Carrier materials for inkjet printers and plotters are papers, foils and banner materials.
- Thermal jet printers with piezo print heads provide that the ink by mechanical Vibrations of the piezo crystal are expelled from the capillary and onto the pressure medium is injected. These print heads are therefore suitable for large UV-stable color pigments. Colors are not affected by the printing process. Almost all components of the ink hit the evaporation medium without evaporation. The ink is at ambient temperature processed and applied, and there is no unusual heating of the ink instead of.
- the piezo print heads have a long service life. However, the print speed is limited by the oscillation process of the piezo crystal. However, it can be as high Print speeds are achieved that in the slipstream of the first drop still some more drops of the ink can be refilled. These still connect before hitting the material into a large drop (variable drop size). Piezo print heads are therefore suitable for large-format printed products outdoors.
- Water-based inks are the most commonly used with inkjet printers Inks, as they can be easily processed, especially with thermal printheads. However, these inks can only be used on coated print media. by virtue of Due to their low durability, they are only suitable for archiving to a limited extent. Your water solubility makes them unusable for applications in damp environments, especially outdoors.
- Solvent based inks have been used in the printing industry for many years, for example used for screen printing. For some time now, these inks have also been used on special inkjet or air brush printers used. These inks are on coated media usable. They have good UV resistance and can be archived in the long term. Moreover they are not water soluble. So they are basically for outdoor use best for. However, they require special protective measures during processing, because they are mostly extremely harmful to the environment and human health. Special suction measures and the use of active filters are officially prescribed. Disposing of the residual ink is also problematic. Because these inks have a low flash point, they can only be transported as dangerous goods. Critical, since it is subject to official requirements also their storage.
- lactate-based lactate inks are actually family of adhesives can be sprayed with piezo printheads.
- Under lactate inks are presently based on lactate-based inks and also such inks understood that have components with properties similar to those of lactate.
- Such The advantage of inks is that they are sprayed directly onto uncoated print media can. They have good UV resistance and are for outdoor use suitable because they are not water-soluble. Ask because of their chemical composition they are not harmful to the environment. There is only a health risk due to direct contact with skin or eyes. They are easy to transport and storable. Drying these inks in the tube system and in the printheads is relative not critical, because it is controllable.
- Lactate inks meet the long-standing need, as simply as possible and environmentally friendly without health risks inks on uncoated material to print with inkjet printers, not least because of the lack of coating material previously unavoidable immense manufacturing costs can be saved.
- WO 00/24 583 A1 describes an inkjet printer with a print head for ejection known from conventional printing ink on a printing medium in the area of a printing surface.
- the printing area is a preheating area for preheating the print medium from upstream and a post-heating surface for drying applied to the print medium Ink added from below.
- the preheating area and the post-heating area are in this known printer formed by the jacket of one and the same heatable roller, which is why preheating and post-heating are coupled in this known inkjet printer are. Due to this coupling, it cannot be guaranteed that the preheating inside the temperature range required for a satisfactory printing result and the Post-drying takes place independently of this in the most suitable temperature range.
- the invention is therefore based on the object of providing an inkjet printer which with lactate ink on coating-free print media high quality printed products guaranteed.
- the preheating process removes any moisture from the pressure medium evaporated.
- the pores of the pressure medium which is preferably as PVC film is present, opened. This allows the lactic acid based ink to penetrate deep into the material penetration. Due to the adhesive behavior of the lactates, the ink literally becomes in the pores screwed.
- the temperature control must fluctuate as little as possible around the ideal value respectively. If the temperature is too high, the medium will curl and the printhead can block and be mechanically damaged. If the temperature is too low, it runs Ink on the medium, the colors mix and the edges bleed.
- the print medium is immediate reheat after printing. The faster the afterheating When the ink dries, the print becomes sharper.
- the print head is again subjected to thermal stress and dries yourself one.
- the print platform must be thermally decoupled.
- Temperatures of are preferred as ideal temperature values for the after-heating 40 ° C to 45 ° C proven. Depending on the thickness of the material, thick banner materials can be used up to 55 ° C may be required. Temperatures above this value should be avoided if possible to avoid injury to the user when touching the heating plate.
- the print image Due to the after-heating, the print image is already 10 to 15 cm behind the print head dry and smudge-proof. The risk that the printed product will be blurred if the medium touching the ground due to the printing length is not given. A winder is optional.
- the print platform must be thermally decoupled from the preheating and post-heating. Additional cooling of the print head with a fan may prove necessary to avoid undue heating of the printhead.
- the heating of the pressure medium in the preheating and in the reheating area must be possible done evenly across its entire width.
- the thermal decoupling of the printing platform from the preheating and post-heating surfaces is achieved by a temperature-stable felt or Teflon tape. This will avoid that the heated metal plate is in direct contact with the printing platform. Because the case metal plate and the printing platform mostly made of different materials, for example steel and aluminum, the decoupling is easy to achieve.
- This Plotter comprises a base body 10 supported on a base with a base 11 at the bottom.
- the upper end of the base body 10 is designed as a pressure stage 12.
- a support 13 protrudes laterally from the base body 10 and winds it onto a core 14
- Supply roll 15 carries from a printing medium, for example a PVC film.
- the direction of conveyance of the pressure medium 16 is indicated by an arrow A in the figure.
- the printing stage 12 is connected upstream in relation to the conveying direction of the pressure medium 16 a crescent-shaped curved inlet metal plate 17.
- the printing stage 12 is connected downstream a similarly shaped discharge metal plate 18.
- a piezo print head arranged above the print stage 12 is used for printing on the print medium 16 19, which has cooling in the form of a fan 20.
- the inlet metal plate 17 and the discharge metal plate 18, via which the pressure medium 16 runs away designed to be heatable and thermally from the printing platform 12 isolated.
- the inlet metal plate 17 thus places a preheating surface 21 with respect to the Printing stage 12 fixed, while the discharge metal plate 18 defines a post-heating surface 22.
- These heating devices are supplied by a control device, not shown, that they have a precise temperature of the preheating surface 21 or the post-heating surface 22 guarantee, namely across the entire width of these areas and in an even distribution on this.
- the heating of the inlet metal surface 17 ensures that the piezo print head 19 discharged lactate ink literally fits into the Pores of the print medium 16 are screwed so that this ink is effectively prevented runs on the print medium 16 or the colors bleed into one another.
- the afterheating ensures that the pressure medium 16 immediately after the Printing process is dried quickly, which benefits the edge sharpness of the printed image.
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
Claims (10)
- Tintenstrahldrucker mit einem Piezo-Druckkopf (19) zum Ausstoßen von Lactat-Tinte auf ein unbeschichtetes Druckmedium (16) im Bereich einer Bedruckungsfläche,
dadurch gekennzeichnet,wobei die Bedruckungsfläche von der Vorwärmfläche (21) und von der Nachwärmfläche (21) thermisch isoliert ist derart, dass sie von der Beheizung der Vorwärmfläche (21) und der Nachwärmfläche (22) thermisch entkoppelt ist.dass der Bedruckungsfläche eine Vorwärmfläche (21) zum Vorwärmen des Druckmediums (16) von seiner dem Piezo-Druckkopf (19) gegenüberliegenden Seite her vorgeschaltet ist, wobei die Vorwärmfläche (21) abhängig von Materialart und Dicke und/oder Fördergeschwindigkeit des Druckmediums (16) auf eine Temperatur von 24°C bis 50°C einstellbar ist,dass der Bedruckungsfläche eine Nachwärmfläche (22) zum Trocknen der auf das Druckmedium (16) aufgetragenen Lactat-Tinte von der dem Piezo-Druckkopf (19) gegenüberliegenden Seite des Druckmediums (16) her nachgeschaltet ist, - Tintenstrahldrucker nach Anspruch 1, dadurch gekennzeichnet, dass die Vorwärmfläche (21) abhängig von Materialart und -dicke und/oder Fördergeschwindigkeit des Druckmediums (16) eine Temperatur von 28°C bis 35°C aufweist.
- Tintenstrahldrucker nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Nachwärmfläche (22) abhängig von Materialart und -dicke des Druckmediums (16) eine Temperatur von 35°C bis 60°C aufweist.
- Tintenstrahldrucker nach Anspruch 3, dadurch gekennzeichnet, dass die Nachwärmfläche (22) abhängig von Materialart und -dicke des Druckmediums (16) eine Temperatur von 40°C bis 45°C aufweist.
- Tintenstrahldrucker nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Kühlung (20) für den Piezo-Druckkopf (19) vorgesehen ist.
- Tintenstrahldrucker nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Vorwärmfläche (21) bzw. die Nachwärmfläche (22) sich im wesentlichen über die gesamte Breite des Druckmediums (16) erstreckt.
- Tintenstrahldrucker nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zur Vorwärmung bzw. Nachwärmung des Druckmediums (16) in der Vorwärmfläche (21) bzw. in der Nachwärmfläche (22) eine flächige Heizeinrichtung unterhalb des Druckmediums (16) vorgesehen ist.
- Tintenstrahldrucker nach Anspruch 7, dadurch gekennzeichnet, dass die Heizeinrichtung auf ihrer Oberseite von einer Metallplatte (17, 18) abgedeckt ist, über welche das Druckmedium (16) geführt ist.
- Tintenstrahldrucker nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Heizeinrichtung zur gleichmäßigen Beheizung der Metallplatte (17, 18) bzw. des Druckmediums (16) Widerstandsheizdrähte (23) umfasst.
- Tintenstrahldrucker nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass die Heizeinrichtung elektronisch geregelt ist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200130582T SI1208992T1 (sl) | 2000-11-15 | 2001-11-14 | Kapljicni tiskalnik s piezo-tiskarsko glavo za iztiskanje laktalnega crnila na neprevleceni tiskarski medij |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10056703A DE10056703C2 (de) | 2000-11-15 | 2000-11-15 | Tintenstrahldrucker mit einem Piezo-Druckkopf zum Ausstoßen von Lactat-Tinte auf ein unbeschichtetes Druckmedium |
| DE10056703 | 2000-11-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1208992A2 true EP1208992A2 (de) | 2002-05-29 |
| EP1208992A3 EP1208992A3 (de) | 2003-08-20 |
| EP1208992B1 EP1208992B1 (de) | 2006-05-17 |
Family
ID=7663460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01127078A Expired - Lifetime EP1208992B1 (de) | 2000-11-15 | 2001-11-14 | Tintenstrahldrucker mit einem Piezo-Druckkopf zum Ausstossen von Lactat-Tinte auf ein unbeschichtetes Druckmedium |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6530657B2 (de) |
| EP (1) | EP1208992B1 (de) |
| AT (1) | ATE326350T1 (de) |
| DE (2) | DE10056703C2 (de) |
| SI (1) | SI1208992T1 (de) |
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| EP2384893A4 (de) * | 2009-01-30 | 2014-05-21 | Mimaki Eng Kk | Tintenstrahldrucker |
| EP2644391B1 (de) * | 2012-03-30 | 2016-05-11 | Tarkett GDL S.A. | Vorrichtung zum Drucken, entsprechendes Verfahren und gedrucktes Produkt |
| EP3363644A1 (de) * | 2017-02-21 | 2018-08-22 | Seiko Epson Corporation | Aufzeichnungsverfahren und aufzeichnungsvorrichtung |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611700A1 (de) | 1995-03-23 | 1996-10-02 | Seiko Epson Corp | Tintenstrahlaufzeichnungsapparat |
| WO2000024583A1 (en) | 1998-10-27 | 2000-05-04 | Lexmark International, Inc. | Ink jet printer with single heater for heating before and after printing |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882762A (ja) * | 1981-11-11 | 1983-05-18 | Fujitsu Ltd | ドロツプ・オン・デマンド型インクジエツト記録装置 |
| JPS62144955A (ja) * | 1985-12-19 | 1987-06-29 | Seiko Epson Corp | インクジエツト記録装置 |
| JP2576470B2 (ja) * | 1986-07-30 | 1997-01-29 | セイコーエプソン株式会社 | インクジエツト記録装置 |
| JPH06328680A (ja) * | 1993-05-19 | 1994-11-29 | Ricoh Co Ltd | インクジェット記録装置 |
| JPH07323615A (ja) * | 1994-05-31 | 1995-12-12 | Canon Inc | 記録装置 |
| DE19500391A1 (de) * | 1995-01-09 | 1996-07-11 | Frank Prof Dr Giesner | Darstellung von Informationen insbesondere für Blinde |
| US5742315A (en) * | 1995-09-05 | 1998-04-21 | Xerox Corporation | Segmented flexible heater for drying a printed image |
| JPH10315456A (ja) * | 1997-05-12 | 1998-12-02 | Xerox Corp | プリント装置及びインクジェットプリンタ |
| US6578474B1 (en) * | 1998-11-25 | 2003-06-17 | Surfcoat Co., Ltd. | Printing or coating method and printing or coating device |
| JP2000296607A (ja) * | 1999-04-16 | 2000-10-24 | Mutoh Ind Ltd | インクジェットプリンタ |
-
2000
- 2000-11-15 DE DE10056703A patent/DE10056703C2/de not_active Expired - Lifetime
-
2001
- 2001-11-14 EP EP01127078A patent/EP1208992B1/de not_active Expired - Lifetime
- 2001-11-14 DE DE50109804T patent/DE50109804D1/de not_active Expired - Lifetime
- 2001-11-14 AT AT01127078T patent/ATE326350T1/de active
- 2001-11-14 SI SI200130582T patent/SI1208992T1/sl unknown
- 2001-11-15 US US10/003,036 patent/US6530657B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611700A1 (de) | 1995-03-23 | 1996-10-02 | Seiko Epson Corp | Tintenstrahlaufzeichnungsapparat |
| WO2000024583A1 (en) | 1998-10-27 | 2000-05-04 | Lexmark International, Inc. | Ink jet printer with single heater for heating before and after printing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2384893A4 (de) * | 2009-01-30 | 2014-05-21 | Mimaki Eng Kk | Tintenstrahldrucker |
| EP2644391B1 (de) * | 2012-03-30 | 2016-05-11 | Tarkett GDL S.A. | Vorrichtung zum Drucken, entsprechendes Verfahren und gedrucktes Produkt |
| EP3363644A1 (de) * | 2017-02-21 | 2018-08-22 | Seiko Epson Corporation | Aufzeichnungsverfahren und aufzeichnungsvorrichtung |
| US10265973B2 (en) | 2017-02-21 | 2019-04-23 | Seiko Epson Corporation | Recording method and recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10056703C2 (de) | 2002-11-21 |
| EP1208992A3 (de) | 2003-08-20 |
| DE50109804D1 (de) | 2006-06-22 |
| DE10056703A1 (de) | 2002-06-13 |
| ATE326350T1 (de) | 2006-06-15 |
| US6530657B2 (en) | 2003-03-11 |
| EP1208992B1 (de) | 2006-05-17 |
| US20020109767A1 (en) | 2002-08-15 |
| SI1208992T1 (sl) | 2006-10-31 |
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