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WO2008018725A1 - Appareil de séchage d'une encre ultraviolette au moyen d'une led ultraviolet - Google Patents

Appareil de séchage d'une encre ultraviolette au moyen d'une led ultraviolet Download PDF

Info

Publication number
WO2008018725A1
WO2008018725A1 PCT/KR2007/003763 KR2007003763W WO2008018725A1 WO 2008018725 A1 WO2008018725 A1 WO 2008018725A1 KR 2007003763 W KR2007003763 W KR 2007003763W WO 2008018725 A1 WO2008018725 A1 WO 2008018725A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultraviolet
ink
ultraviolet rays
printing target
curing
Prior art date
Application number
PCT/KR2007/003763
Other languages
English (en)
Inventor
Oe-Suk Ha
Original Assignee
Com. Design Open Co. Ltd.
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 Com. Design Open Co. Ltd. filed Critical Com. Design Open Co. Ltd.
Publication of WO2008018725A1 publication Critical patent/WO2008018725A1/fr

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
    • 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
    • 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
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface

Definitions

  • the present invention relates to an apparatus for curing ultraviolet ink using ultraviolet LEDs, and more particularly, to an apparatus for curing ultraviolet ink using ultraviolet LEDs, which is constructed such that the ultraviolet rays emitted from ultraviolet LEDs (light emitting diodes), which generate substantially no heat, are collected through optical fibers and are then used to cure ultraviolet ink on a printing target.
  • ultraviolet LEDs light emitting diodes
  • FIG. 1 As is generally known in the art, in a conventional printing machine which uses ultraviolet ink, as shown in FIG. 1, printing is conducted on a printing target 5 in a printing section 1 using ultraviolet ink.
  • the printed target 5 is transferred onto a conveyor 2 and passes through a curing section 6 while being moved by the conveyor 2.
  • Ultraviolet irradiation means 7 is arranged in the curing section 6. As ultraviolet rays are emitted from the ultraviolet irradiation means 7 toward the ultraviolet ink on the printed target 5, the ultraviolet rays instantaneously cure the ultraviolet ink. While a halogen lamp is generally used as the ultraviolet irradiation means 7, about 80% of the light rays emitted from the halogen lamp are visible rays, and ultraviolet rays used for curing ultraviolet ink on the printing target 5 account for less than 20%.
  • the halogen lamp used as the ultraviolet irradiation means 7 causes environmental pollution upon disposal due to the mercury therein. Also, in order to supply a necessary amount of ultraviolet rays for curing ultraviolet ink, a halogen lamp, which has a large capacity of 1,500 to 30,000 W and is thus expensive, must be used. As a consequence, additional facility installation costs are required for the supply of power, and power costs increase excessively. Further, costs for maintenance and repair, such as the replacement of the expensive halogen lamp, necessarily increase. Also, when the halogen lamp emits light rays, heat having a high temperature no less than 150 ⁇ €, is generated.
  • the heat which is generated when the halogen lamp constituting the ultraviolet irradiation means 7 emits light rays and has a high temperature no less than 150 ⁇ C, can deform the printed target 5, which is normally moved by the conveyor 2, into various distorted shapes, and can even burn the printed target 5 black, thus impeding a normal printing operation.
  • a curing device for curing ultraviolet ink When the cartridge 32 is filled with ultraviolet ink, a curing device for curing ultraviolet ink must be separately installed. If a halogen lamp is used as the means for curing ultraviolet ink, a cooling device should be additionally installed, as in the case of the printing machine described above. As a result, the size of the ink jet printer increases, the manufacturing cost is elevated, and mechanical defects may be caused due to heat generation, whereby the utility and popularity of the ink jet printer is likely to be markedly deteriorated. [Disclosure] [Technical Problem]
  • an object of the present invention is to provide an apparatus for curing ultraviolet ink using ultraviolet LEDs wherein ultraviolet LEDs, which emit only ultraviolet rays and generate substantially no heat, are integrated on an ultraviolet LED integration plate, the ultraviolet rays emitted from the respective ultraviolet LEDs are collected by light collection caps and are transferred through a plurality of optical fibers, and the optical fibers are integrated in an ultraviolet irradiation case arranged in a curing section or installed on each of both sides of a carrier, so that the ultraviolet rays are radiated on a printing target of a printing machine or an ink jet printer, whereby the irradiation efficiency of ultraviolet rays is improved, power consumption is minimized, the printing target is prevented from being deformed or burnt due to heat generation, the need for a separate cooling device and power supplying facilities is obviated, the manufacturing cost and the maintenance and repair costs are decreased (through minimized power consumption and extension of the available service life), and
  • an ultraviolet ink curing apparatus for a printing machine, arranged in a curing section and constructed to radiate ultraviolet rays upon a printing target on a conveyor and cure ultraviolet ink applied on the printing target, the apparatus comprising at least one ultraviolet LED integration plate mounted outside the curing section and having a plurality of ultraviolet LEDs fixedly installed thereon; light collection caps mounted on the respective ultraviolet LEDs installed on the ultraviolet LED integration plate, to collect ultraviolet rays!
  • optical fibers respectively connected to upper ends of the light collection caps to transfer collected ultraviolet rays; and an ultraviolet irradiation case arranged in the curing section and having the optical fibers gathered therein into a bundle, to radiate ultraviolet rays on the printing target on the conveyor .
  • an ultraviolet ink curing apparatus for an ink jet printer, constructed to radiate ultraviolet rays on a printing target and cure ultraviolet ink applied on the printing target when a cartridge conducts printing on the printing target using ultraviolet ink while being moved leftward and rightward on a guide bar by a carrier, the apparatus comprising at least one ultraviolet LED integration plate mounted outside the ink jet printer and having a plurality of ultraviolet LEDs fixedly installed thereon; light collection caps mounted on the respective ultraviolet LEDs installed on the ultraviolet LED integration plate, to collect ultraviolet rays; optical fibers respectively connected to upper ends of the light collection caps to transfer collected ultraviolet rays; and an ultraviolet irradiation case fixedly attached on left and right sides of the carrier with the optical fibers gathered therein into a bundle, to radiate ultraviolet rays on the printing target.
  • the apparatus for curing ultraviolet ink using ultraviolet LEDs provides advantages in that the irradiation efficiency of ultraviolet rays is improved, power consumption is minimized, a printing target is prevented from being deformed or burnt due to heat generation, the need for a separate cooling device and power supplying facilities is obviated, a manufacturing cost and a maintenance and repair cost are decreased (through minimized power consumption and extension of available service life), and environmental pollution due to the presence of mercury in a halogen lamp is prevented.
  • FIG. 1 is a schematic view illustrating the construction of a conventional printing machine!
  • FIG. 2 is a schematic view illustrating the main parts of a conventional ink jet printer
  • FIG. 3 is a view illustrating an apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with an embodiment of the present invention
  • FIG. 4 is a view illustrating a printing machine to which the apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with the embodiment of the present invention is mounted;
  • FIG. 5 is a view illustrating an ink jet printer to which the apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with the embodiment of the present invention is mounted. [Best Mode]
  • FIG. 3 is a view illustrating an apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with an embodiment of the present invention
  • FIG. 4 is a view illustrating a printing machine to which the apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with the embodiment of the present invention is mounted
  • FIG. 5 is a view illustrating an ink jet printer to which the apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with the embodiment of the present invention is mounted.
  • an apparatus for curing ultraviolet ink using ultraviolet LEDs in accordance with an embodiment of the present invention includes ultraviolet LED integration plates 10 which are stacked upon one another and on each of which a plurality of ultraviolet LEDs 11 is fixedly installed, light collection caps 12 which are mounted on the respective ultraviolet LEDs 11 installed on the ultraviolet LED integration plates 10 to collect ultraviolet rays, optical fibers 15 which are respectively connected to the upper ends of the light collection caps 12 to transfer collected ultraviolet rays, and an ultraviolet irradiation case 20 which is arranged in the curing section 6 with the optical fibers 15 gathered therein into a bundle, to radiate ultraviolet rays on a printing target 5 on a conveyor 2.
  • the ultraviolet LEDs 11 emit only ultraviolet rays and generate substantially no heat.
  • an ultraviolet LED capable of emitting ultraviolet rays with ultraviolet energy density of 0.35 W has been developed.
  • the present invention is characterized in that, in order to cope with the technical problem, the ultraviolet rays emitted from the ultraviolet LEDs 11 are transferred through optical fibers 15 in a manner such that it is possible to cure ultraviolet ink within a minimized volume and with maximized irradiation efficiency.
  • the light collection caps 12 cover respective ultraviolet LEDs 11, which are fixedly installed on the ultraviolet LED integration plates 10, which are stacked upon one another.
  • Each light collection cap 12 has on an inner surface thereof a reflection structure capable of reflecting the ultraviolet rays emitted from the ultraviolet LED 11.
  • First ends of the optical fibers 15 are connected to the upper ends of respective light collection caps 12.
  • the light collection caps 12 reflect and collect the ultraviolet rays emitted from the ultraviolet LEDs 11 to the optical fibers 15.
  • the ultraviolet rays collected in this way are transferred through the optical fibers 15.
  • an optical fiber is prepared by surrounding a core made of a fine thread of glass with a cladding such that light can travel only along the core.
  • a cladding such that light can travel only along the core.
  • Quartz glass is used as the basic material for such optical fiber.
  • the cladding which has a low refractive index, surrounds the core, which has a high refractive index.
  • the optical fiber has a diameter of 0.1-0.2 mm. Even when the optical fiber is surrounded by a coating, the optical fiber has a small diameter which does not exceed 1 mm.
  • the optical fibers 15, which possess a diameter no greater than 1 mm in this way, have first ends which are connected to the upper ends of the light collection caps 12 to transfer the ultraviolet rays emitted from the ultraviolet LEDs 11 and second ends which are inserted as a single bundle into the ultraviolet irradiation case 20 arranged in the curing section 6, to be fixedly held therein.
  • the ultraviolet irradiation case 20 is arranged in the curing section 6 and radiates the ultraviolet rays transferred through the optical fibers 15 onto the printing target 5 on the conveyor 2 to cure ultraviolet ink applied on the printing target 5.
  • the ultraviolet energy density of the ultraviolet rays radiated from the ultraviolet irradiation case 20 is determined depending upon the number of ultraviolet LEDs 11 which are attached to the ultraviolet LED integration plates 10.
  • the ultraviolet rays emitted from the plurality of ultraviolet LEDs 11 are transferred through the optical fibers 15 having a diameter no greater than 1 mm, and are then radiated, from the optical fibers 15 gathered in a bundle in the ultraviolet irradiation case 20, upon the printing target 5, which is moved by the conveyor 2.
  • ultraviolet irradiation cases 21-1 and 21-2 are attached to the left and right sides of a carrier 33.
  • a cartridge 32 When a cartridge 32 is moved leftward and conducts printing on a printing target 30, ultraviolet rays are radiated from the ultraviolet irradiation case 21-2, which is positioned upstream when viewed in the moving direction of the cartridge 32, and cure the ultraviolet ink on the printing target 30.
  • ultraviolet rays are radiated from the ultraviolet irradiation case 21-1. which is positioned upstream when viewed in the moving direction of the cartridge 32, and cure the ultraviolet ink on the printing target 30.
  • the ultraviolet LED integration plates 10 be installed outside the curing section 6 of the printing machine or outside the case of the ink jet printer, so that maintenance and repair of the ultraviolet LEDs 11 can be easily performed.
  • the apparatus for curing ultraviolet ink using ultraviolet LEDs provides advantages in that the irradiation efficiency of ultraviolet rays is improved, power consumption is minimized, a printing target is prevented from being deformed or burnt due to heat generation, the need for a separate cooling device and power supplying facilities is obviated, a manufacturing cost and a maintenance and repair cost are decreased (through minimized power consumption and extension of available service life), and environmental pollution due to the presence of mercury in a halogen lamp is prevented.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Ink Jet (AREA)

Abstract

L'invention concerne un appareil de séchage d'une encre ultraviolette pour une machine d'impression. Cet appareil est agencé dans une section de séchage (6) et est structuré de manière à émettre des rayons ultraviolets sur une cible d'impression (5) sur un dispositif de transport (2) et à sécher l'encre ultraviolette appliquée sur la cible d'impression (5). L'appareil comprend au moins une plaque d'intégration à LED ultraviolet (10) montée à l'extérieur de la section de séchage (6) et présentant une pluralité de LED ultraviolet (11) installées fixement dessus ; des chapeaux de captation de lumière (12) montés sur les LED ultraviolet (11) respectives installées sur la plaque d'intégration à LED ultraviolet (10) pour capter les rayons ultraviolets ; des fibres optiques (15) reliées respectivement aux extrémités supérieures des chapeaux de captation de lumière (12) pour transférer les rayons ultraviolets captés ; et une boîte de rayonnement ultraviolet (20) agencée dans la section de séchage (6) et présentant les fibres optiques (15) assemblées à l'intérieur sous forme de faisceau, pour l'émission de rayons ultraviolets sur la cible d'impression (5) du dispositif de transport (2).
PCT/KR2007/003763 2006-08-07 2007-08-06 Appareil de séchage d'une encre ultraviolette au moyen d'une led ultraviolet WO2008018725A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060074122A KR20080013083A (ko) 2006-08-07 2006-08-07 자외선 엘이디를 이용한 자외선 잉크 경화장치
KR10-2006-0074122 2006-08-07

Publications (1)

Publication Number Publication Date
WO2008018725A1 true WO2008018725A1 (fr) 2008-02-14

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Application Number Title Priority Date Filing Date
PCT/KR2007/003763 WO2008018725A1 (fr) 2006-08-07 2007-08-06 Appareil de séchage d'une encre ultraviolette au moyen d'une led ultraviolet

Country Status (2)

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KR (1) KR20080013083A (fr)
WO (1) WO2008018725A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105195905A (zh) * 2015-10-16 2015-12-30 惠州市杰普特电子技术有限公司 新型激光打印设备
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038379B1 (ko) * 2010-05-31 2011-06-01 주식회사 딜리 Ｌｅｄ를 이용한 프린터용 경화장치
CN105196710B (zh) * 2015-10-16 2016-10-05 张晶 激光打印设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05113526A (ja) * 1991-10-21 1993-05-07 Omron Corp 光結合ユニツトおよびそれを用いたフアイバ光電センサ
JPH10239569A (ja) * 1997-02-28 1998-09-11 Yasuhiro Koike 光ファイバーと発光または受光素子の結合方法
WO2002018144A1 (fr) * 2000-08-31 2002-03-07 Riso Kagaku Corporation Imprimante a jet d'encre et procede d'impression sur film epais
JP2004001437A (ja) * 2002-03-27 2004-01-08 Konica Minolta Holdings Inc インクジェットプリンタ、インク吐出ヘッドユニット及び画像形成方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05113526A (ja) * 1991-10-21 1993-05-07 Omron Corp 光結合ユニツトおよびそれを用いたフアイバ光電センサ
JPH10239569A (ja) * 1997-02-28 1998-09-11 Yasuhiro Koike 光ファイバーと発光または受光素子の結合方法
WO2002018144A1 (fr) * 2000-08-31 2002-03-07 Riso Kagaku Corporation Imprimante a jet d'encre et procede d'impression sur film epais
JP2004001437A (ja) * 2002-03-27 2004-01-08 Konica Minolta Holdings Inc インクジェットプリンタ、インク吐出ヘッドユニット及び画像形成方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
CN105195905A (zh) * 2015-10-16 2015-12-30 惠州市杰普特电子技术有限公司 新型激光打印设备

Also Published As

Publication number Publication date
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