EP0830217B1 - Vorrichtung zum härten einer schicht auf einem substrat - Google Patents
Vorrichtung zum härten einer schicht auf einem substrat Download PDFInfo
- Publication number
- EP0830217B1 EP0830217B1 EP96919674A EP96919674A EP0830217B1 EP 0830217 B1 EP0830217 B1 EP 0830217B1 EP 96919674 A EP96919674 A EP 96919674A EP 96919674 A EP96919674 A EP 96919674A EP 0830217 B1 EP0830217 B1 EP 0830217B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- gas
- housing
- rinsing
- nozzles
- 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 - Lifetime
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims abstract 2
- 239000002023 wood Substances 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000976 ink Substances 0.000 claims description 9
- 238000007639 printing Methods 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000004922 lacquer Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 10
- 239000000123 paper Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 47
- 238000010926 purge Methods 0.000 description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000003570 air Substances 0.000 description 8
- 239000011261 inert gas Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- PMJNEQWWZRSFCE-UHFFFAOYSA-N 3-ethoxy-3-oxo-2-(thiophen-2-ylmethyl)propanoic acid Chemical compound CCOC(=O)C(C(O)=O)CC1=CC=CS1 PMJNEQWWZRSFCE-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 2
- FEIXNIOTSKFSAZ-UHFFFAOYSA-L azane;dihydroxy(dioxo)chromium Chemical compound N.N.O[Cr](O)(=O)=O FEIXNIOTSKFSAZ-UHFFFAOYSA-L 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
-
- 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
- B41F23/0483—Drying combined with cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/066—After-treatment involving also the use of a gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0045—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by mechanical wave energy, e.g. ultrasonics, cured by electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams, or cured by magnetic or electric fields, e.g. electric discharge, plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
Definitions
- the invention relates to a device for curing an ink, lacquer, Adhesive or silicone layer, according to the preamble of claim 1.
- the invention is concerned with the treatment of substances, in particular of dyes which have a double bond as a monomer, which is to be polymerized using UV light. It is known, Polymerize double bonds with electrons or cationically.
- the treating mixture e.g. a dye a so-called photoinitiator needed.
- This photoinitiator is used in excess so the polymerization reaction once started by UV light does not result from this breaks off that the dye radical reacts with the diradical oxygen. Accordingly, a relatively high concentration of Photoinitiators worked so that the probability for the dye radical, to meet and enter an oxygen radical become, relatively less than the probability of another To hit monomer with double bond and to radicalize it.
- Central cylinder machines are known with which on a paper web or applied different colors one after the other on a plastic film each layer is dried before the next layer of paint is applied.
- UV lamps are used to dry these individual layers of paint used and cooled by air. This is a UV lamp cooled with an outside temperature of approx. 800 ° C by sucking in air, which is led past the lamp.
- a disadvantage of this Construction is the continuous generation of ozone, the movement of large ones Amounts of dirt particles and the heating of the coated substrate, which is particularly difficult for heat-sensitive plastic films Defects.
- EP-A-0 161 540 describes a method for hardening a hardenable Silicon layer known that on a paper substrate surface is applied, the layer being carried out in a hardness stage Irradiation substrate with UV light while flushing the UV lamp room is subjected to gas.
- the UV lamp room is from that Hardening room through which the substrate is led by means of a quartz glass pane separated gas-tight.
- the cooling gas preferably air
- Nitrogen as an inert gas is fed separately into the hardening room entered, ensuring that special locks are provided, that the entry of atmospheric oxygen into the hardening room is not possible.
- US-A-4 143 278 describes a radiation reactor for hardening layers, Colors and the like. Described at what ambient air in the Housing, over the lamps and on the substrate surface and circulates. The use of an inert gas is not intended there. A special cooling device turns the circulating air into heat withdrawn.
- EP-A-0 589 260 is a flexographic printing machine constructed in a modular design known, on the printing unit, a film made of plastic or Metal is printed with a UV-curing ink.
- the printed web is fed to a UV radiation and cooling unit, which comprises a cooling cylinder, the inner cooling jacket of cooling water is flowed through.
- the first step is that the film, which is usually very sensitive to heat and has a thickness of 10 to 50 ⁇ m during the UV irradiation must be cooled.
- the present invention exists in performing the second step, d. H. the printing and drying / curing process in an atmosphere of purge gas. If If inert gas is used, nitrogen or carbon dioxide is preferred.
- the purge gas does not necessarily have to be an inert gas, but can be in Depending on the layer to be hardened also dry air, moist air or be another reactive gas.
- moist air or be another reactive gas for example, there are chemical ones Systems that are not sensitive to oxygen, but sensitive to moisture are.
- glue on a paper web or a Plastic or aluminum foil are applied, they need water, to be able to react and harden better.
- a polyamide film on the other hand tends to bind very strong moisture on the surface. As a result then the gas must be chosen so that this film before Printing process, that is, dehumidified before applying the color, so that there are much more favorable conditions than when the color is on a monomolecular moisture film is applied.
- the proposal according to the invention is particularly at a high speed working flexographic cylinder machine with great advantage applicable, on which, for example, films for food packaging to be completed or where it has to be laminated. It can not only be excellent adhesion of paint to paper / plastic or aluminum foils achieve, but the problem of the unpleasant smell is caused by a significant reduction in the photoinitiator also eliminated because the hardening / drying of the individual layers of paint now takes place in a protective atmosphere and quickly.
- the Laminar flow including oxygen can also occur in particular Entry of the substrate in the hardness stage in the form of the UV dryer Nitrogen can be replaced, the color on the surface also from that quickly absorbed oxygen is released. According to the invention can more than 80% of the photoinitiators required so far have been dispensed with that there are also significant cost savings in UV curing inks surrender.
- a housing 1 with side walls 4, 5 is provided.
- This housing is open at its lower end, which too has an impression cylinder 14 which is a hollow cylinder and the latter Wall coolant passages 17, through which, for example Water can flow.
- an impression cylinder 14 which is a hollow cylinder and the latter Wall coolant passages 17, through which, for example Water can flow.
- the side wall 5 with the cylinder surface defines a gap 8
- a gap 9 is provided; the two columns 8, 9 are shown in the Embodiment approximately 2 mm wide.
- the rotating cylinder transports a substrate which before entry into the housing 1 as a hardness level has been coated with a layer.
- Nozzle bodies are provided on the outer surfaces of the side walls 4, 5, wherein between these nozzle bodies 6a, 7a and the surface of the Backing cylinder transporting substrate also provided gaps are the width of columns 8, 9 correspond.
- a reflector 2 which is in its top area is curved and the rays of a UV lamp 3 directly on the continuous substrate aligns with that applied to the substrate To dry or harden the layer.
- Both the housing 1 and the Reflector 2 are interspersed with coolant channels 15, 16 so that these parts can be tempered or cooled if through these channels 15, 16 a cooling medium, preferably water, circulates.
- a purge gas source Q which has a purge gas for the hardness stage feeds in or away from it.
- a purge gas line extends for this purpose 11 from the purge gas source Q via a gas flow and Flow regulator 10 through an opening 12a in the upper housing wall and ends in a nozzle provided in the reflector 2. So that the purge gas Rinse the space below the reflector 2 and exit from columns 8, 9. Furthermore, one extends from the gas flow and quantity regulator 10 further purge gas line 12 to the nozzle body 6a, so that through the nozzle gap 6 also flushing gas is directed onto the incoming substrate, the Transport direction in Fig. 1 is indicated by an arrow.
- Another purge gas line 13 leads from the gas flow and quantity regulator to the nozzle body 7a and is connected to a nozzle gap 7.
- the purge gas can also on the outlet side of the substrate on the latter, especially act on the applied layer.
- the purge gas out the nozzle gap 7 has an additional effect by being in that of the Reflector 2 surrounding space creates a negative pressure and existing there Draws purge gas from the outlet gap 9.
- the size of this negative pressure can be adjusted by the controller 10 and a valve V, which in the Purge gas line 11 is arranged.
- Such a suction effect can also the nozzle gap 6 are exerted, from which purge gas not only on the Layer of the incoming substrate is directed. It is preferred that To make nozzle gaps 6, 7 adjustable in their flow angle, like this is described below.
- Nozzle bodies 6a and 7a are each on the outer surface of the side walls 4, 5 are located, it is also possible to integrate these bodies in the side walls.
- a nozzle body 7a is provided, which at the same time as Sun protection screen acts and is glued and screwed to the side wall.
- the nozzle gap 7 results from the fact that a further nozzle body 18 with Is held on the nozzle body 7a by means of an adjusting screw, wherein this adjusting screw has an enlarged head, the inner edge of a gradation of the nozzle body 18 is present.
- the nozzle gap 7 is adjustable in width.
- This Nozzle gap 7 is supplied with purge gas via a channel 20 which is connected to the Purge gas line 13 is in flow connection. 2 is the direction of movement of the substrate, not shown in detail, by an arrow 8 indicated, the substrate through the gap 9 between the nozzle body and Impression cylinder is guided.
- the controller 10 set the purge gas line 11 to suction operation, while the two purge gas lines 12, 13 the purge gas to the nozzle bodies 6a, 7a direct. In other words, it is up to you to choose and depending possible from the substrate to be treated, the purge gas lines 11, 12 and 13 to work as a pressure or suction line.
- a relatively high direct radiation angle means correspondingly high ones Power yield of UV light with the disadvantage of possible substrate heating, which is compensated for by appropriate cylinder cooling becomes.
- the reflected rays are on a water-cooled reflector system been mirrored.
- the housing is cooled and the Interior can be filled with gas such as Be filled with nitrogen.
- the usual light shields to protect the personnel are shown in the Embodiment designed so that they work simultaneously as a gas nozzle.
- the angle of attack is used to achieve a "peeling effect" the gas nozzle adjustable.
- the gas supply is controlled by the plant operation programmed.
- the so-called light and gas flushing bar can be independent of the UV lamp unit, i.e. in front of a printing station Removal of a rough surface from oxygen before the paint is applied.
- gas supply and discharge in the UV lamp is for these variants sensible with a combination of the regulation of the gas composition.
- An application example is the achievement of a defined gloss level of Varnishes by changing lamp power of at least two in Direction of substrate of successive UV lamps and the targeted Change in the amount of residual oxygen during each lamp run.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Wire Bonding (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Coating Apparatus (AREA)
Description
- Fig. 1
- schematisch in Achsrichtung eines das beschichtete Substrat transportierenden Zylinders gesehen eine Vorrichtung zum Härten einer Schicht auf dem Substrat,
- Fig. 2
- eine Teilansicht der äußeren Seitenwand mit an ihr angeordnetem Düsenkörper.
- a)
- V = 80 m/Min (Bahngeschwindigkeit) 20% der üblichen Initiatorkonzentration, geringe UV-Lampenleistung von ca. 50 W/cm → Ablegen der Farbe auf Umlenkwalzen.
- b)
- gleiche Bedingungen, jedoch mit einer Stickstoffspülung zwischen Druckfarbenauftrag und UV-Bestrahlung → durchgehärtet, knin Ablegen auf Umlenkwalzen feststellbar. (Bahngeschwindigkeit).
Ammoniak, H2COOH, z.B. in Inertgas (N2) angereichert.
Claims (6)
- Vorrichtung zum Härten einer Druckfarben-, Lack-, Kleber- oder Silikonschicht, mit welcher ein Substrat aus Papier, Kunststoff, Glas, Holz, oder Metall beschichtet ist, mit einem Gehäuse (1), das in Richtung zu einem das Substrat transportierenden Transportkörper (14) hin offen ist und das Substrat unter Beibehaltung von Substrateinlauf- und Substratablaufspalte (8, 9) abdeckt, und mit einer innerhalb des Gehäuses angeordneten UV-Lampe (3) mit einem Reflektor (2), welcher das UV-Licht auf das durchlaufende Substrat richtet, wobei wenigstens eine Spülgasleitung (11) einerseits mit einer Spülgasquelle (Q) und andererseits mit dem Innenraum des Gehäuses (1) über eine Düse (12) verbunden ist, dadurch gekennzeichnet, daß neben dem Substrateinlaufspalt (8) und dem Substratauslaufspalt (9) vorzugsweise mit Wasser kühlbare Spülgasdüsen (6, 7) vorgesehen sind, deren Strömungsrichtungswinkel in Bezug auf das durchlaufende Substrat einstellbar sind und welche in Strömungsverbindung mit einem Gasstromrichtungs- und Mengenregler (10) stehen, daß eine Temperiervorrichtung (17) zum Kühlen des durchlaufenden Substrats vorgesehen ist, daß die Spülgasdüsen (6, 7) an den Gehäuseseitenwänden (4, 5) vorgesehen sind und daß in dem Gehäuse (1), dem Reflektor (2) und dem Transportkörper (14) Kühlkanäle (15, 16, 17) angeordnet sind.
- Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Spülgasdüsen (6, 7) über Leitungen (12, 13) mit dem Regler (10) verbunden sind und sich außerhalb des Gehäuses (1) befinden, so daß eine Gasspülung des Substrats auch vor und nach dem Substratdurchlauf erfolgt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Spülgasdüsen (6, 7) als Lichtschutzblenden vorgesehen sind, die an den Außenseiten der Gehäuseseitenwände (4, 5) verstellbar angeordnet sind.
- Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Gasleitungen (11, 12, 13) von dem Regler (10) wahlweise als Gasabsaugleitungen oder Gaszuführleitungen schaltbar sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie als Bestandteil einer Zentralzylindermaschine am Umfang eines Zentralzylinders angeordnet und jeweils einem Auftragswerk nach- bzw. vorgeschaltet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß im Gehäuse (1) eine wassergekühlte Shutterklappe vorgesehen ist, die zwischen der UV-Lampe und dem Substrat verfahrbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19516231 | 1995-05-04 | ||
DE19516231 | 1995-05-04 | ||
PCT/EP1996/001872 WO1996034700A1 (de) | 1995-05-04 | 1996-05-06 | Verfahren und vorrichtung zum härten einer schicht auf einem substrat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0830217A1 EP0830217A1 (de) | 1998-03-25 |
EP0830217B1 true EP0830217B1 (de) | 1999-11-24 |
Family
ID=7760975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96919674A Expired - Lifetime EP0830217B1 (de) | 1995-05-04 | 1996-05-06 | Vorrichtung zum härten einer schicht auf einem substrat |
Country Status (7)
Country | Link |
---|---|
US (1) | US6185840B1 (de) |
EP (1) | EP0830217B1 (de) |
JP (1) | JPH11504850A (de) |
AT (1) | ATE186857T1 (de) |
CA (1) | CA2220108A1 (de) |
DE (1) | DE59603722D1 (de) |
WO (1) | WO1996034700A1 (de) |
Cited By (6)
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AT77006B (de) * | 1916-05-22 | 1919-06-25 | Cornelius Heyl Fa | Verfahren zum Trocknen von Lackleder und dgl. |
BE757249A (en) * | 1970-10-08 | 1971-03-16 | Euripe Sprl | Polymerisation of synthetic film coating - on panel |
US3994073A (en) | 1975-04-08 | 1976-11-30 | Ppg Industries, Inc. | Air cooling means for UV processor |
US4135098A (en) * | 1976-11-05 | 1979-01-16 | Union Carbide Corporation | Method and apparatus for curing coating materials |
US4143278A (en) * | 1977-05-16 | 1979-03-06 | Geo. Koch Sons, Inc. | Radiation cure reactor |
GB2096294B (en) * | 1981-02-25 | 1984-06-20 | Svecia Silkscreen Maskiner Ab | Drier |
DE3416502A1 (de) * | 1984-05-04 | 1985-11-07 | Goldschmidt Ag Th | Vorrichtung zum aushaerten von flaechigen werkstoffen aus durch uv-strahlung haertbaren verbindungen oder zubereitungen |
US4646446A (en) * | 1985-11-04 | 1987-03-03 | American Screen Printing Equipment Company | UV curing apparatus |
JP2523574B2 (ja) | 1987-02-05 | 1996-08-14 | 松下電器産業株式会社 | 塗工フイルムの製造方法 |
SE8802431L (sv) * | 1988-06-28 | 1989-12-29 | Svecia Silkscreen Maskiner Ab | Torkanlaeggning med uv-ljus alstrande organ |
DE4229352A1 (de) * | 1992-09-07 | 1994-04-14 | Bhs Bayerische Berg | Druckmaschine |
-
1996
- 1996-05-06 EP EP96919674A patent/EP0830217B1/de not_active Expired - Lifetime
- 1996-05-06 US US08/945,895 patent/US6185840B1/en not_active Expired - Fee Related
- 1996-05-06 JP JP8533016A patent/JPH11504850A/ja active Pending
- 1996-05-06 AT AT96919674T patent/ATE186857T1/de not_active IP Right Cessation
- 1996-05-06 CA CA002220108A patent/CA2220108A1/en not_active Abandoned
- 1996-05-06 DE DE59603722T patent/DE59603722D1/de not_active Expired - Fee Related
- 1996-05-06 WO PCT/EP1996/001872 patent/WO1996034700A1/de active IP Right Grant
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1413416A3 (de) * | 2002-10-25 | 2007-05-02 | Air Liquide Deutschland GmbH | Anlage zum Strahlungshärten |
EP2031330A2 (de) | 2007-08-27 | 2009-03-04 | Uviterno AG | Vorrichtung zum Bestrahlen eines Substrats mittels UV-Strahlen |
DE102007040209A1 (de) * | 2007-08-27 | 2009-03-12 | Uviterno Ag | Vorrichtung zum Bestrahlen eines Substrats |
EP2192366A2 (de) | 2008-12-01 | 2010-06-02 | Uviterno AG | Vorrichtung zum Bestrahlen eines Substrats |
DE102016200545B4 (de) | 2015-06-05 | 2022-12-22 | Koenig & Bauer Ag | Vorrichtung zur Behandlung von bogenförmigem Substrat |
DE102018130280A1 (de) * | 2018-11-29 | 2020-06-04 | Koenig & Bauer Ag | Trocknungseinheit zum Trocknen bedruckter Substrate |
DE102018130279A1 (de) * | 2018-11-29 | 2020-06-04 | Koenig & Bauer Ag | Bogendruckmaschine mit mindestens einem Druckwerk zum Bedrucken von Druckbogen |
Also Published As
Publication number | Publication date |
---|---|
JPH11504850A (ja) | 1999-05-11 |
WO1996034700A1 (de) | 1996-11-07 |
CA2220108A1 (en) | 1996-11-07 |
US6185840B1 (en) | 2001-02-13 |
ATE186857T1 (de) | 1999-12-15 |
DE59603722D1 (de) | 1999-12-30 |
EP0830217A1 (de) | 1998-03-25 |
MX9708479A (es) | 1998-10-31 |
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