EP0146998A1 - Appareil de durcissement - Google Patents

Appareil de durcissement Download PDF

Info

Publication number
EP0146998A1
EP0146998A1 EP19840303956 EP84303956A EP0146998A1 EP 0146998 A1 EP0146998 A1 EP 0146998A1 EP 19840303956 EP19840303956 EP 19840303956 EP 84303956 A EP84303956 A EP 84303956A EP 0146998 A1 EP0146998 A1 EP 0146998A1
Authority
EP
European Patent Office
Prior art keywords
conveyor
water
reflector
ultra
housing
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.)
Withdrawn
Application number
EP19840303956
Other languages
German (de)
English (en)
Inventor
Ronald Mervin Mason
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCREEN PRINTING SUPPLIES Pty Ltd
Original Assignee
SCREEN PRINTING SUPPLIES Pty 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 SCREEN PRINTING SUPPLIES Pty Ltd filed Critical SCREEN PRINTING SUPPLIES Pty Ltd
Publication of EP0146998A1 publication Critical patent/EP0146998A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers

Definitions

  • This invention has application to the printing industry and in particular provides means for curing what is referred to in the printing trade as photo-developing inks, or more commonly ultra-violet inks. Such inks by the application of ultra-voilet rays cure into a finished "dried" condition.
  • mercury lamps tubes
  • Mercury lamps are preferred to other sources ultra-violet rays.
  • Mercury lamps however operate at a temperature exceeding 450°C and when they are operating there is a great deal of heat generated. This heat is a problem in the curing of ultra-violet inks because of the detrimental effect such heat has on the base material onto which the printed image has been deposted. Sheet stock material will curl due to heat and if not passed beneath the lamp at an appropriate rate, scorching, charring and even fire can result from the sheet stock being overheated.
  • An early arrangement comprised one or more mercury tubes each with a reflector which partially surrounded the lamp at the side remote from the printed material.
  • the printed material was therefore subject to both direct and reflected radiation.
  • the reflected radiation was concentrated by the reflector to give a narrow band of high intensity radiation at a set distance from the light-source.
  • This arrangement cured all common ink thicknesses. The problem with this arrangement was the maintenance of the desired feed rate. With high speed feed as used, momentary slow down or a feeding jam resulted in burned, ruined product.
  • a light source housed within a reflector (as before) but the path-of all direct and reflected rays was blocked by a transparent barrier.
  • the barrier comprised transparent material enclosing a flowing, cooling liquid..By way of example, this could be achieved by locating the light-source in the inner of two concentric transparent tubes and passing water through the annulus therebetween see German Utility Model 7637428.
  • the mouth of the reflector was completely blocked by two side-by-side tubes through which water was passed see U.S. 4000407 or by a rectangular shaped tube which extended across the mouth of the reflector and through which water was passed.
  • thin is meant ink deposits in the order of 5 to 10 microns thick as would be deposited in printing processes known as litho.
  • the present invention overcomes these problems by providing a water-cooled reflector and in a preferred embodiment, a water bed adapted to be located below the conveyor, in heat transfer relationship therewith, is provided.
  • a water-cooled shutter can be added to completely block the light-source when required.
  • a water-cooled filter as described in Australian Patent 517719 located between the ultra-violet light-source and the sheet material containing ink to be cured so as to intercept between 5% and 50% of all the direct rays from the ultra-violet source can be added.
  • the present invention provides only a limited use of small fans to provide cooling of the lamp ends only, there being no use of fans to cool the housing itself and hence eliminating "stock flutter", and providing a versatility of operation not found with existing apparatus.
  • the curing head can be quite small and can be added to conventional drying systems with minimal additional usage of floor space.
  • the embodiments of the present invention as shown in Fig. 1, have ultra-violet lamps 5 located above a conveyor belt 2, upon which are carried the substrates or stock material 3.
  • the reflection 6 is water cooled by having a plurality of passages through the reflector, which passageways take up a substantial volume of the reflector or else the reflector 6 are, as shown in Fig. 1, hollow thin walled stainless steel shells, so as to provide the maximum water contact with the skin of the reflector,-containing the reflective surface 7, while maintaining structural stability of the reflector 6.
  • internal baffles (not . shown) are constructed in the reflector to ensure complete circulation of water across the skin of the reflector 6, containing the reflective surface.
  • the reflectors 6 are positioned in the conventional way to reflect light from the lamp 5 back onto the substrates 3.
  • the present invention provides a more efficient water cooled reflector system with the skin of the reflector containing the reflective surface being in almost total contact with the cooling water.
  • the water cooled reflectors can be individually supplied with cooling water as shown in Fig. 2A or can be connected in tandem as shown in Fig. 1.
  • Water cooled shutters 8 can also be provided to automatically slide across the open end of the reflector 6 to isolate the lamp 5 from the substrate 3 on the conveyor 2, if the convey stops or if there is a feeder jam.
  • the shutter 8 is constructed as a hollow thin walled stainless steel shell and is internally baffled along its length to ensure complete circulation of water. Thus when the shutters are closed across the filters there is no appreciable heat radiated from the lamps to the conveyor.
  • a water cooled bed 9 can be located beneath the conveyor 2 in heat exchange relationship therewith to further absorb heat from within the housing 4. As shown in Fig. 1 this bed takes the form of a thin walled stainless steel shell suitably baffled to ensure complete circulation of water across the bed. To facilitate cooling of the housing 4, the bed 9 has a chamber 11 with a plurality tubing 10 passing through the water chamber. A vacuum is applied to the chamber 11 drawing' air from the housing through the conveyor belt 2, which is of porous or web structure, through the tubing 10, where it is cooled.
  • the substrates are held down on the conveyor, offering no chance of stock flutter, also the substrate is subjected to a chill effect with the concentrated heat from above, and heat is removed from the housing and from the exhaust air.
  • inventions of the present invention can be provided in modular configurations as shown in Figs. 2A to 2D.
  • Fig. 2A two spaced apart water cooled reflectors are used with two small fans 12 in the housing to provide cooling.
  • the lamps are'positioned.such that the area of illumination by the direct rays of one lamp do not overlap with the area of illumination by the direct rays of the other lamp.
  • An embodiment of the present invention as shown in Fig. 2B, is suitable for high speed web printing, using heat sensitive substrates.
  • the water cooled reflections are required for effective operation with the water cooled shutters being provided in the case of jams.
  • Fig. 2C an arrangement is shown for low speed screen printing of heat sensitive substrates using the filters 13 as heat regulators. If the substrates are particularly heat sensitive the water cooled bed could also be used.
  • Fig. 2D an arrangemnet is shown suitable for offset sheet high speed printing.
  • the embodiments of the present invention can be easily fitted to existing printing lines to satisfy most if not all of the curing conditions generally found in practise.
  • the cooling water can be supplied directly from the mains or through a chiller or a cooling tower and recirculated.
  • the ultra-violet light source can be controlled by a ballast to produce a low, medium or high output of 200, 250 or 300 watts/linen inch. As higher output temperatures are becoming more popular with printers, extra cooling by means of chillers or cooling towers will be needed.
  • the present invention in one embodiment as illustrated in Figs. 3 and 4 comprise a housing 4 having a lid 14 with openings 16 to allow air to be drawn into the housing.
  • the lid can be hinged open as shown to allow the light and reflector housing 15 to be pivoted open (as shown in Fig. 4 to allow ease of access to the lamps and reflectors, for replacement of lamps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP19840303956 1983-06-24 1984-06-12 Appareil de durcissement Withdrawn EP0146998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU998083 1983-06-24
AU9980/83 1983-06-24

Publications (1)

Publication Number Publication Date
EP0146998A1 true EP0146998A1 (fr) 1985-07-03

Family

ID=3700766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840303956 Withdrawn EP0146998A1 (fr) 1983-06-24 1984-06-12 Appareil de durcissement

Country Status (3)

Country Link
EP (1) EP0146998A1 (fr)
JP (1) JPS6024951A (fr)
AU (1) AU2935384A (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU590592B2 (en) * 1985-07-20 1989-11-09 Ferd.Ruesch A.G. Device for the treatment of substances by UV radiation
EP0370352A2 (fr) * 1988-11-17 1990-05-30 Joseph Thomas Burgio, Jr. Appareil de durcissement d'un revêtement sur un substrat mouvant et procédé de fonctionnement de l'appareil
EP0589260A1 (fr) * 1992-09-07 1994-03-30 BHS Druck- und Veredelungstechnik GmbH Machine d'impression
WO1996030200A1 (fr) * 1995-03-31 1996-10-03 Ferguson International Holdings Plc Ameliorations concernant la stratification de materiaux en feuilles
EP0550722B1 (fr) * 1991-07-25 1998-06-10 G.E.W.(Ec) Ltd. Dessiccateurs à rayons U.V.
GB2399162A (en) * 2003-03-01 2004-09-08 Integration Technology Ltd Ultraviolet curing
EP1593919A2 (fr) * 2004-04-02 2005-11-09 Firma arccure technologies GmbH Procédé et dispositif de durcissement de revêtements polymérisables par voie radicalaire
US7235878B2 (en) 2004-03-18 2007-06-26 Phoseon Technology, Inc. Direct cooling of LEDs
EP1800876A1 (fr) * 2005-12-22 2007-06-27 Tapematic S.P.A. Un dispositif pour sècher par rayonnement
WO2008065420A1 (fr) * 2006-12-01 2008-06-05 Gew (Ec) Limited Système de refroidissement pour appareil de durcissement d'encre
US8523387B2 (en) 2003-10-31 2013-09-03 Phoseon Technology, Inc. Collection optics for LED array with offset hemispherical or faceted surfaces
US8637332B2 (en) 2004-03-18 2014-01-28 Phoseon Technology, Inc. Micro-reflectors on a substrate for high-density LED array
JP2016160385A (ja) * 2015-03-03 2016-09-05 日本ボールドウィン株式会社 フイルムの表面処理装置
US10401012B2 (en) 2002-05-08 2019-09-03 Phoseon Technology, Inc. High efficiency solid-state light source and methods of use and manufacture
US20210007182A1 (en) * 2018-03-23 2021-01-07 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Reflector and light sintering apparatus comprising the same
EP3797994A1 (fr) * 2019-09-30 2021-03-31 Iwasaki Electric Co., Ltd. Dispositif linéaire d'irradiation de lumière

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003185A (en) * 1988-11-17 1991-03-26 Burgio Joseph T Jr System and method for photochemically curing a coating on a substrate
JP2522877Y2 (ja) * 1992-03-27 1997-01-16 ブラザー工業株式会社 テープ印字装置
JP5482537B2 (ja) * 2010-07-23 2014-05-07 Ｎｋワークス株式会社 紫外線照射装置
JP5695899B2 (ja) * 2010-12-28 2015-04-08 リョービＭｈｉグラフィックテクノロジー株式会社 印刷機
JP5803967B2 (ja) * 2013-03-26 2015-11-04 ウシオ電機株式会社 光照射器
JP6531545B2 (ja) * 2015-07-29 2019-06-19 岩崎電気株式会社 光照射装置
CN112428672B (zh) * 2020-11-23 2022-04-12 苏州市融光标签有限公司 一种具有节能功能的丝网印刷机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1482743A (en) * 1974-09-18 1977-08-10 Wallace Knight Ltd Lamp housing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849258A (ja) * 1981-09-17 1983-03-23 Toshiba Electric Equip Corp 紫外線照射装置
JPS5859843A (ja) * 1981-10-07 1983-04-09 Toshiba Electric Equip Corp 光照射装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1482743A (en) * 1974-09-18 1977-08-10 Wallace Knight Ltd Lamp housing

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU590592B2 (en) * 1985-07-20 1989-11-09 Ferd.Ruesch A.G. Device for the treatment of substances by UV radiation
EP0370352A2 (fr) * 1988-11-17 1990-05-30 Joseph Thomas Burgio, Jr. Appareil de durcissement d'un revêtement sur un substrat mouvant et procédé de fonctionnement de l'appareil
EP0370352A3 (fr) * 1988-11-17 1991-03-20 Joseph Thomas Burgio, Jr. Appareil de durcissement d'un revêtement sur un substrat mouvant et procédé de fonctionnement de l'appareil
EP0550722B1 (fr) * 1991-07-25 1998-06-10 G.E.W.(Ec) Ltd. Dessiccateurs à rayons U.V.
EP0589260A1 (fr) * 1992-09-07 1994-03-30 BHS Druck- und Veredelungstechnik GmbH Machine d'impression
WO1996030200A1 (fr) * 1995-03-31 1996-10-03 Ferguson International Holdings Plc Ameliorations concernant la stratification de materiaux en feuilles
WO1996030210A1 (fr) * 1995-03-31 1996-10-03 Ferguson International Holdings Plc Amelioration apportees a la stratification de materiaux en feuille
US10401012B2 (en) 2002-05-08 2019-09-03 Phoseon Technology, Inc. High efficiency solid-state light source and methods of use and manufacture
GB2399162B (en) * 2003-03-01 2007-01-17 Integration Technology Ltd Ultraviolet curing
GB2399162A (en) * 2003-03-01 2004-09-08 Integration Technology Ltd Ultraviolet curing
US8523387B2 (en) 2003-10-31 2013-09-03 Phoseon Technology, Inc. Collection optics for LED array with offset hemispherical or faceted surfaces
US7235878B2 (en) 2004-03-18 2007-06-26 Phoseon Technology, Inc. Direct cooling of LEDs
US8637332B2 (en) 2004-03-18 2014-01-28 Phoseon Technology, Inc. Micro-reflectors on a substrate for high-density LED array
EP1593919A3 (fr) * 2004-04-02 2006-04-05 Firma arccure technologies GmbH Procédé et dispositif de durcissement de revêtements polymérisables par voie radicalaire
EP1593919A2 (fr) * 2004-04-02 2005-11-09 Firma arccure technologies GmbH Procédé et dispositif de durcissement de revêtements polymérisables par voie radicalaire
EP1800876A1 (fr) * 2005-12-22 2007-06-27 Tapematic S.P.A. Un dispositif pour sècher par rayonnement
WO2008065420A1 (fr) * 2006-12-01 2008-06-05 Gew (Ec) Limited Système de refroidissement pour appareil de durcissement d'encre
JP2016160385A (ja) * 2015-03-03 2016-09-05 日本ボールドウィン株式会社 フイルムの表面処理装置
US20210007182A1 (en) * 2018-03-23 2021-01-07 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Reflector and light sintering apparatus comprising the same
EP3745024A4 (fr) * 2018-03-23 2021-07-28 IUCF-HYU (Industry-University Cooperation Foundation Hanyang University) Réflecteur et appareil de frittage par lumière comprenant ce dernier
EP3797994A1 (fr) * 2019-09-30 2021-03-31 Iwasaki Electric Co., Ltd. Dispositif linéaire d'irradiation de lumière

Also Published As

Publication number Publication date
AU2935384A (en) 1985-01-03
JPS6024951A (ja) 1985-02-07

Similar Documents

Publication Publication Date Title
EP0146998A1 (fr) Appareil de durcissement
US6807906B1 (en) Zoned ultraviolet curing system for printing press
US3733709A (en) Reflector and cooling means therefor
US3745307A (en) Apparatus for curing solvent-free printing material
CA1194297A (fr) Methode et dispositif de cuisson
US3826014A (en) Shutter mechanism for radiation-curing lamp
US4015340A (en) Ultraviolet drying apparatus
US5321595A (en) Double bulb mercury vapor lamp apparatus
US2431520A (en) Photoprinting machine
US7669530B2 (en) UV curing assembly having sheet transfer unit with heat sink vacuum plate
EP0265939B1 (fr) Dispositif et méthode pour sécher les couches photosensibles
ATE137169T1 (de) Druckmaschinen-temperierungssystem
FI934280A (fi) Foerfarande och apparat foer sterilisering av kartonger
US5216820A (en) Curing unit and method of curing ink
US3914594A (en) Radiation lamp reflector assembly
US4222177A (en) Apparatus for curing photo-developing inks
JPH0360733A (ja) 紫外線照射装置
US2690106A (en) Printing lamp and cylinder cooling means
JPS55156064A (en) Radiation device of infrared rays
US4669865A (en) Cooling device for a light source in a copying machine
JPS5546739A (en) Light source of contact photographic printer for e.p.m.
JPH043303Y2 (fr)
JPH0361043A (ja) 紫外線照射装置
JPS6128445A (ja) 紫外線照射装置
GB1195517A (en) Improved Apparatus for Exposing Light-Sensitive Copy Paper to Light

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850613

17Q First examination report despatched

Effective date: 19870218

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870630

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MASON, RONALD MERVIN