EP1373984A1 - Verfahren und vorrichtung zum erwärmen und fixieren eines farbauftrages, insbesondere eines tonerpulvers auf einem plattenförmigen träger - Google Patents
Verfahren und vorrichtung zum erwärmen und fixieren eines farbauftrages, insbesondere eines tonerpulvers auf einem plattenförmigen trägerInfo
- Publication number
- EP1373984A1 EP1373984A1 EP02722254A EP02722254A EP1373984A1 EP 1373984 A1 EP1373984 A1 EP 1373984A1 EP 02722254 A EP02722254 A EP 02722254A EP 02722254 A EP02722254 A EP 02722254A EP 1373984 A1 EP1373984 A1 EP 1373984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- hot air
- coated
- microwave
- radiation
- 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
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 title claims abstract description 8
- 230000005855 radiation Effects 0.000 claims abstract description 37
- 230000009471 action Effects 0.000 claims abstract description 5
- 239000003973 paint Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000002241 glass-ceramic Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims 2
- 238000000862 absorption spectrum Methods 0.000 claims 1
- 229910000323 aluminium silicate Inorganic materials 0.000 claims 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 8
- 239000012876 carrier material Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
Definitions
- the invention relates to a method for heating and fixing a paint application, in particular a toner powder on a plate-shaped carrier, in which the color application applied to the coated top of the carrier is fixed on the carrier by the action of heat, and a device for carrying out the method.
- infrared radiation for heating and fixing a paint application applied to a paper or sheet-like carrier
- the short-wave infrared radiation has a typical emission temperature of 2000 to 2500 K.
- Paper has a low basis weight, which is usually less than 100 g / m 2 .
- This object is achieved according to the invention with a method which is characterized in that the coated top and / or the uncoated underside of the plate-shaped carrier is exposed to infrared radiation and / or a hot air stream and / or a microwave radiation and that a carrier with high Weight per unit area is used which allows part of the loading directed onto the uncoated underside of the carrier and absorbs another part of the same.
- the energy input occurs both via the coated upper side of the carrier and via the non-coated underside of the carrier with differently selectable exposure to infrared radiation, hot air flow and
- the carrier allows part of the exposure to pass through and absorbs part of the same.
- the action on the back of the carrier causes, on the one hand, that the material of the carrier heats up evenly due to partial absorption, and, on the other hand, that increased absorption takes place in the toner powder at the interface between the color application and the carrier, which leads to better melting of the toner powder -vers and thus also leads to better adhesion to the carrier.
- the energy input is also largely independent of the degree of toner occupancy and the type of toner powder, which is particularly advantageous in the case of direct printing of different carrier materials with different toner powder, such as thermoplastic, thermosetting or ceramic toner powders.
- the plate-shaped carrier has a weight per unit area of> 1 00 g / m 2 , in particular> 1000 g / m 2 .
- a transparent material such as glass, glass ceramic or plastic, is used as the carrier, which has a transmission> 20%, preferably> 50% in the spectral range with a wavelength of 0.8 ⁇ m to 5 ⁇ m.
- Materials with a thickness of 3 to 8 mm and a relatively smooth, poorly wettable surface are particularly suitable if a ceramic or thermosetting toner powder is used for the color application.
- the fixation of the toner powder on such carriers can be further improved by exposing the coated top and / or the uncoated underside of the carrier to a hot air stream, which is preferably directed bundled onto the ink application if the carrier has a low degree of transmission for this purpose, or also in that the carrier on the coated top and / or the uncoated bottom of a hot air stream, which is preferably directed bundled onto the ink application if the carrier has a low degree of transmission for this purpose, or also in that the carrier on the coated top and / or the uncoated bottom of a
- BESTATIGUNGSKOPIE microwave radiation is exposed, the frequency of which essentially corresponds to the resonance frequency (microwave coupling frequency) of the molecular structure of the carrier.
- the fixation can be carried out with a device for carrying out the method with the carrier not moved or with the carrier moving continuously, on the one hand providing that the carrier provided with the paint application is introduced into a chamber which is on the coated upper side and / or the non-coated
- the underside of the carrier is provided with transmission devices for the selected exposures to the carrier, while on the other hand the procedure is such that the carrier can be moved through a pass-through chamber which has transmitting devices for the selected exposures on the coated top side and / or the uncoated underside of the carrier the carrier is provided.
- a simple device with infrared emitters arranged on both sides is characterized in that the transmitter devices are arranged on the coated top side and / or the non-coated bottom side of the carrier in a uniform division, the arrangement on both sides of the transmitter devices from the top side and bottom side by one Half division are offset from each other, and that several infrared emitters are arranged as transmission devices on both sides of the carrier and that the sides of the infrared emitter facing away from the carrier are enclosed by semicircular partial reflectors.
- the infrared emitters extend over the entire color application of the stationary carrier or they form a continuous path which, with the speed of the carrier and its length, ensures a sufficient heating and fixing time.
- the partial reflectors concentrate the radiation on the paint application and also direct radiation reflected by the carrier back onto the carrier.
- the partial reflectors associated with the coated upper side of the carrier can be combined to form a reflector unit.
- the device is advantageously designed such that the partial reflectors assigned to the uncoated underside of the carrier are each arranged between two transport rollers of a roller conveyor.
- the partial reflectors of the reflector unit are provided with air passage openings and close inflow chambers to which hot air can be supplied by means of a hot air blower via supply lines, and that the reflector unit between the partial reflectors is provided with suction openings which are connected to the hot air blower via suction lines.
- the coated carrier can also be introduced into or pass through a microwave chamber and subjected to microwave radiation with an industrially approved frequency of 2.54 GHz. This can be done before or after irradiation with infrared radiation or together with it.
- This microwave frequency in the Essentially corresponds to the resonance frequency (microwave coupling frequency) of the molecular structure of the carrier, which is particularly the case with carrier materials made of aluminosilicate glass ceramic in the high quartz mixed crystal modification (HQMK).
- the coated upper side of the carrier can also be applied only with a directed or bundled hot air stream. Depending on the material of the carrier, it is only possible to apply microwave radiation to the uncoated underside.
- 1 is a flow device in section with a flow chamber and infrared emitters arranged on both sides,
- FIG. 2 shows the flow device according to FIG. 1 with an additional top loading of the carrier with a hot air stream
- Fig. 3 shows a device with a hot air exposure to the coated top
- Fig. 4 shows a device with a microwave chamber.
- the method according to the invention is applied, since the carrier 1 carried out is exposed to infrared radiation on the coated top side 1 .1 and the uncoated back side underside 1 .2, which emanates from infrared emitters 3 that emit on both sides of the Carrier 1 are arranged.
- a plurality of infrared emitters 3 are, however, assigned to the top and bottom sides 1 .1 and 1 .2 of the carrier 1 in the same division, offset by half a division.
- the carrier 1 is moved by transport rollers 2. The speed of this movement and the length of this "pass-through chamber" are coordinated in such a way that a sufficient irradiation time and fixing time are ensured.
- the infrared radiators 3 are each arranged in semicircular partial reflectors 4.1 or 4.2, so that the radiation is focused in the direction of the carrier 1 and that radiation reflected by the carrier 1 is reflected back again.
- the partial reflectors 4.1 on the coated upper side 1 .1 of the carrier 1 are combined to form a reflector unit 4, while on the non-coated lower side 1 .2 of the carrier 1 the partial reflectors 4.2 are always arranged between two transport rollers 2.
- the infrared emitters 3 are e.g. designed as dark emitters, halogen emitters, quartz emitters or carbon emitters, whose radiation maximums are between 0.8 ⁇ m and 5 ⁇ m and their emission temperatures are between 1000 K and 750 K.
- the thickness of the carrier is between 3 mm and 8 mm. Glass or glass ceramic with a transmission> 20%, preferably> 50%, is particularly suitable as a carrier material for the short-wave infrared radiation. Other materials with a sufficiently large transmission for infrared radiation can also be used with an equally good effect.
- the emitters are designed as ceramic emitters. These have a radiation maximum between 3.5 and 4 ⁇ m and a radiation temperature in the range between 500 and 600 ° C.
- the structural design with the transport rollers 2, the infrared emitters 3 and the partial reflectors 4.1 and 4.2 is practically the same.
- a hot air stream 10 is additionally passed over the paint application of the carrier 1, which is kept in circulation by a hot air blower 6 in a line system 5.
- the partial reflectors 4.1 of the reflector unit 4 close inflow chambers 11, to which the hot air is supplied via supply lines 5.1. The hot air emerges from the inflow chambers 11 through air through openings 7 of the partial reflectors 4.1 and additionally heats up the paint application.
- the reflector unit 4 has suction openings 8, through which the hot air is sucked into suction chambers 12.
- the suction chambers 1 2 the sucked-in air is passed through filters 9 and the impurities contained are retained.
- the air freed of contaminants and cooled, returns to the hot air blower 6 via suction lines 5.2, where it is returned to the circulation circuit 5 after heating and pressure increase.
- the application of additional hot air to the paint application brings an improvement in the heating-up time and thus also the toner fixation.
- the hot air blower 6 can be designed as a radial blower which axially sucks in the air from the suction lines 5.2 and radially supplies it to the supply lines 5.1 when heated.
- the method can also be carried out in a device designed as a receiving chamber without transport rollers.
- the partial reflection can also be carried out in a device designed as a receiving chamber without transport rollers.
- BESTATIGUNGSKOPIE gates 4.2 are then also combined to form a reflector unit and the carrier 1 is brought into the receiving chamber and exposed to the infrared radiation and / or the hot air stream and / or a microwave radiation for a predetermined time.
- the combination with hot air and / or microwave radiation can be selected as required, taking into account the material, thickness and transmittance of the carrier 1.
- the coated upper side 1 .1 of the carrier 1 is subjected to a directed and bundled hot air stream 10.
- the carrier 1 is moved on transport rollers 2 past the fixed hot air blower 6, which is housed in a housing 15.
- the air flow generated by the hot air blower 6 is still heated by a heater 13 and is directed to a discharge opening 16 by a guide element 14.
- the guide element 1 4 forms with the housing 1 5 an outflow duct 1 7 and an intake duct 1 8 for the air flow 10.
- the microwave chamber 24 shows a microwave chamber 24, in which the carrier 1 can be inserted and removed via closure members 25.
- the closure members 25 remain closed while the underside 1 .2 of the carrier is being acted upon.
- the microwave chamber 24 is shielded from the outside, so that the microwave radiation only occurs in the interior.
- the transport of the carrier 1 into and out of the microwave chamber 24 is carried out by transport rollers 2.
- microwave kystrons 23 Between the transport rollers 2 there are microwave kystrons 23 which are controlled by means of a pyrometer 26. Pyrometers, in particular those in the spectral range with wavelengths around 5.5 ⁇ m or in Range 7.5 to 8.2 microns sensitive, are particularly suitable for monitoring the surface temperature of glasses or glass ceramics. Due to the relatively good coupling of carrier materials made of alumosilicate glass ceramics in high-quartz mixed crystal modification (H QM K), temperature monitoring is particularly important to prevent overheating of the toner material and the carrier material.
- H QM K high-quartz mixed crystal
- Pyrometers also have the advantage that they are relatively insensitive to microwave radiation.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Printing Methods (AREA)
- Coating Apparatus (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10114526 | 2001-03-22 | ||
DE10114526A DE10114526B4 (de) | 2001-03-22 | 2001-03-22 | Verfahren und Vorrichtung zum Erwärmen und Fixieren eines Farbauftrages, insbesondere eines Tonerpulvers auf einem plattenförmigen Träger |
PCT/EP2002/003115 WO2002077720A1 (de) | 2001-03-22 | 2002-03-21 | Verfahren und vorrichtung zum erwärmen und fixieren eines farbauftrages, insbesondere eines tonerpulvers auf einem plattenförmigen träger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1373984A1 true EP1373984A1 (de) | 2004-01-02 |
EP1373984B1 EP1373984B1 (de) | 2007-08-01 |
Family
ID=7678881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02722254A Expired - Lifetime EP1373984B1 (de) | 2001-03-22 | 2002-03-21 | Verfahren zum erwärmen und fixieren eines farbauftrages auf einem plattenförmigen transparenten träger |
Country Status (7)
Country | Link |
---|---|
US (1) | US7326443B2 (de) |
EP (1) | EP1373984B1 (de) |
CN (1) | CN1317608C (de) |
AT (1) | ATE368877T1 (de) |
CA (1) | CA2441285A1 (de) |
DE (2) | DE10114526B4 (de) |
WO (1) | WO2002077720A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004054132A1 (de) * | 2004-11-08 | 2006-05-18 | Schott Ag | Elektrofotografisch verarbeitbarer Toner |
DE102006017359B3 (de) * | 2006-04-11 | 2007-12-20 | Schott Ag | Verkapselung elektronischer und optoelektronischer Bauteile im Waferverbund |
US7674300B2 (en) * | 2006-12-28 | 2010-03-09 | Kimberly-Clark Worldwide, Inc. | Process for dyeing a textile web |
US20080156427A1 (en) * | 2006-12-28 | 2008-07-03 | Kimberly-Clark Worldwide, Inc. | Process For Bonding Substrates With Improved Microwave Absorbing Compositions |
US7740666B2 (en) | 2006-12-28 | 2010-06-22 | Kimberly-Clark Worldwide, Inc. | Process for dyeing a textile web |
US8182552B2 (en) | 2006-12-28 | 2012-05-22 | Kimberly-Clark Worldwide, Inc. | Process for dyeing a textile web |
US8632613B2 (en) | 2007-12-27 | 2014-01-21 | Kimberly-Clark Worldwide, Inc. | Process for applying one or more treatment agents to a textile web |
JP5359781B2 (ja) * | 2009-10-27 | 2013-12-04 | コニカミノルタ株式会社 | 定着装置及び画像形成装置 |
CN113219802B (zh) * | 2021-04-30 | 2022-06-03 | 龙南格林园艺制品有限公司 | 彩卡式自动识别生产线 |
DE102022124767A1 (de) | 2022-09-27 | 2023-09-07 | Heidelberger Druckmaschinen Aktiengesellschaft | Vorrichtung zum Trocknen von Bedruckstoff |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS541181B2 (de) * | 1971-12-15 | 1979-01-22 | ||
JPS55108677A (en) * | 1979-02-13 | 1980-08-21 | Nec Corp | Fixing device |
JPH01206381A (ja) * | 1988-02-13 | 1989-08-18 | Seiko Instr & Electron Ltd | 非接触型熱定着器 |
DD289143A5 (de) | 1989-11-16 | 1991-04-18 | Veb Robotron Bueromaschinenwerk "Ernst Thaelmann" Soemmerda,De | Fixiervorrichtung |
JPH08227240A (ja) * | 1995-02-21 | 1996-09-03 | Ricoh Co Ltd | 画像形成装置 |
JP3384707B2 (ja) * | 1997-03-19 | 2003-03-10 | 富士通株式会社 | 画像形成装置 |
JP3559716B2 (ja) | 1998-09-25 | 2004-09-02 | 株式会社リコー | 誘導発熱型定着装置とその誘導電流発生部材を製造する方法 |
DE29823683U1 (de) * | 1998-10-09 | 1999-09-30 | IndustrieSerVis Gesellschaft für Innovation, Technologie-Transfer und Consulting für thermische Prozeßanlagen mbH, 83052 Bruckmühl | Farbauftragsfixierung |
DE19857044C2 (de) | 1998-10-09 | 2002-09-19 | Advanced Photonics Tech Ag | Farbauftragsfixierung |
-
2001
- 2001-03-22 DE DE10114526A patent/DE10114526B4/de not_active Expired - Fee Related
-
2002
- 2002-03-21 US US10/472,557 patent/US7326443B2/en not_active Expired - Fee Related
- 2002-03-21 CN CNB028042786A patent/CN1317608C/zh not_active Expired - Fee Related
- 2002-03-21 AT AT02722254T patent/ATE368877T1/de not_active IP Right Cessation
- 2002-03-21 DE DE50210593T patent/DE50210593D1/de not_active Expired - Lifetime
- 2002-03-21 EP EP02722254A patent/EP1373984B1/de not_active Expired - Lifetime
- 2002-03-21 WO PCT/EP2002/003115 patent/WO2002077720A1/de active IP Right Grant
- 2002-03-21 CA CA002441285A patent/CA2441285A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO02077720A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2441285A1 (en) | 2002-10-03 |
WO2002077720A1 (de) | 2002-10-03 |
EP1373984B1 (de) | 2007-08-01 |
DE50210593D1 (de) | 2007-09-13 |
DE10114526B4 (de) | 2005-04-07 |
CN1489721A (zh) | 2004-04-14 |
US7326443B2 (en) | 2008-02-05 |
ATE368877T1 (de) | 2007-08-15 |
DE10114526A1 (de) | 2003-04-03 |
US20050100812A1 (en) | 2005-05-12 |
CN1317608C (zh) | 2007-05-23 |
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