EP3678790B1 - Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients - Google Patents

Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients Download PDF

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Publication number
EP3678790B1
EP3678790B1 EP18735261.2A EP18735261A EP3678790B1 EP 3678790 B1 EP3678790 B1 EP 3678790B1 EP 18735261 A EP18735261 A EP 18735261A EP 3678790 B1 EP3678790 B1 EP 3678790B1
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EP
European Patent Office
Prior art keywords
containers
lamps
irradiation
irradiation tunnel
heat sinks
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.)
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Application number
EP18735261.2A
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German (de)
English (en)
Other versions
EP3678790A1 (fr
Inventor
Wolfgang Mayer
August Peutl
Roland Laumer
Valentin BECHER
Andreas NIEMCZYK
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.)
Krones AG
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Krones AG
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Publication date
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Publication of EP3678790A1 publication Critical patent/EP3678790A1/fr
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Publication of EP3678790B1 publication Critical patent/EP3678790B1/fr
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Classifications

    • 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
    • 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.
    • 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
    • B41F23/005—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing of non-flat 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
    • 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
    • B41F23/0476—Cooling
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts

Definitions

  • the invention relates to an irradiation tunnel according to the preamble of claim 1 and as known from DE 33 22 401 C1 and a method for irradiating containers in the irradiation tunnel.
  • containers are increasingly printed directly using UV-reactive inks.
  • the finished but not yet sufficiently cured print images are preferably post-treated with broadband UV radiation in the UVC, UVB and UVA ranges and the inks are thus cured quickly and completely.
  • Mercury vapor lamps for example, can be used for this purpose.
  • the lamps are arranged one behind the other in an irradiation tunnel along a transport means in the transport direction in order to irradiate the containers from the side and to cure UV-curing printing inks (inks) present thereon.
  • the irradiation levels required for curing cause considerable heating of the irradiation tunnel, which has hitherto been counteracted by suction of the air present in the irradiation tunnel and subsequent flows of cooler ambient air through the container inlet and outlet.
  • air cooling inside the irradiation tunnel has two fundamental disadvantages.
  • the heat exchange is so severely limited by the range of practicable volume flows on the affected surfaces that lamps can only be arranged on one side of the means of transport and cooling zones without lamps are required on the other side.
  • the containers must be irradiated on both sides, at least two zones, each with one-sided irradiation and associated cooling zones, must be set up one behind the other along the means of transport. This leads to an undesirably elongated design of the irradiation tunnel.
  • the air cooling is based on the intake of comparatively large amounts of room air through the container inlet and the container outlet. Since the air sucked in in this way can hardly be filtered, dust is introduced into the irradiation tunnel with the room air. This causes undesired contamination of the irradiation tunnel and possibly also of the container.
  • the irradiation tunnel comprises a means of transport for containers, lamps arranged along the means of transport for UV irradiation of the containers, and a cooling device for cooling the interior of the irradiation tunnel.
  • the cooling device comprises liquid-cooled heat sinks which extend into the irradiation areas of the lamps. According to the invention, the heat sinks are coated and/or anodized to absorb UV light.
  • the heat sinks are at least partially irradiated by opposite lamps.
  • the liquid-cooled heat sinks enable a more compact design of the irradiation tunnel, since both the heat sinks and the lamps can be arranged directly next to each other and on both sides of the means of transport. In addition, there is no need for supply air through the container inlet and/or the container outlet of the irradiation tunnel. Thus, contamination of the irradiation tunnel and the container with dust from the ambient air can be avoided.
  • Interior cooling of the irradiation tunnel means that the heat sinks are designed to dissipate energy that was introduced into the irradiation tunnel by the lamps as radiant energy and is absorbed by its inner walls, components and the air present inside.
  • the interior cooling plays no or only a minor role for the cooling of the lamps themselves.
  • the lamps are cooled using cooling systems known per se, for example using separate air or water cooling circuits for the individual lamps.
  • the heat sinks have no radiation function in the sense of reflecting and/or scattering the UV light and/or emitting thermal radiation after light absorption. Instead, the light energy absorbed by it and the thermal energy absorbed from the interior air via convection should be transferred as comprehensively as possible to the coolant flowing through the heat sink.
  • the irradiation areas are areas that are directly irradiated by the lamps, possibly also only intermittently through the transport gaps between the moving containers.
  • the lamps are preferably arranged on both sides of the means of transport, and the heat sinks are formed at least between the lamps, in particular around the lamps, viewed transversely to the direction of transport.
  • the area of the lamps on the side of the means of transport can also be used for effective cooling of interior air and for the absorption of radiant energy. This enables a particularly compact irradiation tunnel.
  • liquid-cooled heat sinks are preferably formed above the means of transport.
  • the heat sinks can then be designed essentially in the form of a ceiling of the irradiation tunnel in order to absorb scattered radiation and to cool interior air rising upwards.
  • These heat sinks are usually located outside of the irradiation areas.
  • the liquid-cooled heat sinks can, for example, have a total area of at least 0.5 m 2 and in particular at least 1 m 2 , the total cooling area being a cooling area that is in contact with the interior air.
  • the heat sinks preferably comprise hollow plates made from metal, in particular from an aluminum alloy.
  • hollow plates allow an equally mechanically stable enclosing of the transport route for the containers as well as an effective heat transfer to the cooling liquid, which is in particular cooling water.
  • the hollow plates have cooling channels that can be flexibly connected in parallel and/or in series between the flow and return in order to optimize the cooling capacity in individual areas of the irradiation tunnel.
  • Aluminum alloys are particularly suitable for the production of hollow panels and can be easily anodized, for example.
  • the heat sinks have a light-absorbing coating and/or anodized with an average absorptance ⁇ of at least 0.5 in the spectral range from 200 to 450 nm.
  • the irradiation tunnel preferably also comprises at least one ventilation duct for blowing in supply air.
  • a controlled supply of supply air convection can be forced in the irradiation tunnel to promote constant heat exchange from the indoor air and the heat sinks.
  • Supply air of a suitable quality can be supplied in a targeted manner via the ventilation duct.
  • the transport means is a conveyor belt for transporting the containers in an upright position, and the ventilation duct opens into the irradiation tunnel below the conveyor belt. This ensures sufficient air exchange in the area below the conveyor belt.
  • the irradiation tunnel also comprises a blower supplying the ventilation duct and a suction device for exhaust air from the irradiation tunnel, the blower being designed at least to completely replace the extracted exhaust air. This makes it possible to avoid additional ambient air being sucked in through the container inlet and/or container outlet of the irradiation tunnel.
  • the incoming air that is blown in could have a larger volume flow than the extracted air, so that excess incoming air flows out through the container inlet and/or container outlet. An entry of dust from the ambient air into the irradiation tunnel can thus be counteracted even more effectively.
  • the lamps are separately cooled UV lamps for curing UV-curing inks on the containers.
  • the lamps therefore have sufficient radiation power for curing the printing inks.
  • the UV lamps do not significantly affect the interior of the irradiation tunnel due to their independent cooling with electrical power loss.
  • a direct printing machine for containers which comprises printing units for printing UV-curing printing ink (ink) onto the containers and an irradiation tunnel arranged downstream of the printing units for UV-curing the printing ink, in accordance with at least one of the embodiments described above.
  • UV-curable printing inks can thus be cured to an extent that is at least suitable for further processing and handling over a comparatively short transport distance.
  • the containers are then preferably transported at a clear distance from one another which is at least twice as large as the largest dimension of the containers in the direction of transport.
  • radiation emitted obliquely by the lamps can fall to a sufficient extent on wall sections which are aligned in (or approximately in) the transport direction or in the opposite direction.
  • a complete curing of UV-reactive printing colors (inks) or the like is possible.
  • Air in the irradiation tunnel preferably sweeps along the heat sinks, in particular as a result of forced air convection, and in the process gives off thermal energy to a cooling liquid flowing through the heat sinks.
  • the air convection can be forced, for example, by controlled supply air and/or the transport movement of the containers.
  • the thermal energy absorbed by the heat sinks in this way is transported away effectively and controllably by the coolant.
  • the liquid-cooled heat sinks preferably absorb treatment radiation.
  • the treatment radiation falls, for example, through the transport gaps between the containers in the transport direction, onto the heat sink.
  • the cooling bodies also absorb directed and/or diffuse reflections, for example after reflection on the containers. The energy dissipated by light absorption is withdrawn directly from the irradiation tunnel and can therefore no longer contribute to heating the indoor air in the irradiation tunnel. This leads to a particularly efficient interior cooling of the irradiation tunnel.
  • the irradiation tunnel 1 for containers 2 includes a housing 1a and a transport means 3, which is designed, for example, as a conveyor belt for upright containers 2.
  • Lamps 4 for UV irradiation of UV-reactive printing inks (inks) 2a are arranged on the containers 2 on both sides of the means of transport 3 .
  • the lamps 4 can be arranged directly opposite one another, as well as overlapping in the transport direction 3a or without a lamp 4 directly opposite each other.
  • the latter is in FIG 1 shown for an input-side and an output-side lamp 4.
  • the middle lamps 4 are arranged directly opposite one another. Overlapping irradiation areas 4a with UV radiation are preferably formed in front of the lamps 4 .
  • First liquid-cooled heat sinks 5 extending at least into the irradiation regions 4a of the lamps 4 are designed as the cooling device for cooling the interior of the irradiation tunnel 1 .
  • the first heat sinks 5 extend in the form of a side wall between the lamps 4.
  • the first heat sinks 5 are preferably also formed above and below the lamps 4.
  • second liquid-cooled heat sinks 6 in the form of a lateral enclosure of the means of transport 3 .
  • These heat sinks 6 can also be located at least partially in the irradiation areas 4a of the lamps 4.
  • the first heat sinks 5 preferably frame the lamps 4 completely. Recesses 5a for the lamps 4 are then formed in the first heat sinks 5 .
  • the first heat sink 5 can be composed of intersecting columns 5b and longitudinal bars 5c in segments around the recesses 5a, as is illustrated only on the right-hand side of FIG 1 is shown. In principle, a segment-like construction would also be conceivable for the second and third heat sinks 6 , 7 .
  • the heat sinks 5-7 are preferably double-walled, ie, for example, designed as hollow plates 8 with a front side 8a facing the containers 2, a rear side 8b facing away from the containers, and connecting webs 8c formed in between. Between these, a multiplicity of cooling channels 8d are provided, which can be connected in any manner in series or in parallel to a supply 9a and a return 9b for cooling liquid 9. Water provided under conventional line pressure is suitable as the cooling liquid 9 .
  • the lamps 4 are cooled separately, for example by means of closed air cooling circuits 10 (only indicated schematically on the right). These carry away the electrical power loss of the lamps 4 and possibly also ozone or the like occurring directly in front of the lamps 4 .
  • the first heat sinks 5 are of little or no importance for the loss-related cooling of the lamps 4 .
  • the heat sinks 5-7 serve to cool the interior of the irradiation tunnel 1 by means of, in particular, forced air convection 11 on the heat sinks 5-7.
  • the air convection 11 is in the 2 indicated by flow arrows as an example.
  • a ventilation duct 12 is also shown schematically, which supplies the irradiation tunnel 1 with the aid of a blower 13 with supply air 14 .
  • the supply air 14 forces at least part of the air convection 11 in the irradiation tunnel 1, so that there is a constant exchange of air at the heat sinks 5-7.
  • the heat sinks 5-7 thus constantly absorb thermal energy from the interior air flowing past them and transfer this to the coolant 9 . Thermal energy is thus continuously withdrawn from the interior of the irradiation tunnel 1 during operation.
  • the volume flow of the supply air 14 is at least as large as the volume flow of the exhaust air 16 in order to prevent ambient air from being sucked in through the container inlet 17 and/or container outlet 18 of the irradiation tunnel 1 .
  • the volume flow of the supply air 14 is preferably slightly smaller than the volume flow of the exhaust air 16, for example by at most 5%, so that a small amount of air flows through the container inlet 17 and the container outlet 18 into the irradiation tunnel 1. An entry of dust from the ambient air can thus be reliably avoided and at the same time an escape of ozone from the irradiation tunnel 1. Escaped ozone leads to unpleasant odors, even if the occupational limit concentration has not yet been reached.
  • the ventilation duct 12 preferably opens into the irradiation tunnel 1 below the transport means 3.
  • the air convection 11 in the irradiation tunnel 1 can also be forced to a significant extent by means of the transport movement of the containers 2 . This is particularly advantageous since the first and second heat sinks 5, 6 extend into the irradiation areas 4a or into the immediate vicinity of the means of transport 3 and the container 2, so that the heat transfer there can be improved by the air convection 11 forced in this way.
  • visual protection locks 19 connected to the container inlet 17 and the container outlet 18 for shielding the UV radiation emitted by the lamps 4 are also shown.
  • the transport direction of the containers 2 preferably changes in such a way that the UV radiation cannot penetrate directly from the lamps 4 to the outside.
  • beam traps 20 in the form of absorbing slats or the like can be arranged in the privacy locks 19 .
  • the privacy locks 19 are used for occupational safety and in particular to avoid impermissible levels of UV radiation outside of the irradiation tunnel 1.
  • a combination of the interior cooling described with the privacy locks 19 is also particularly advantageous because the installation space required for the privacy locks 19 can be provided by the compact arrangement of the lamps 4 and the liquid-cooled heat sink 5-7.
  • the irradiation tunnel 1 is therefore also suitable for improved occupational safety with regard to the permissible immission of UV radiation.
  • the containers 2 are preferably transported at a clear distance 21 from one another, which is at least twice as large as the largest dimension 22 of the container 2 in the transport direction 3a. This creates sufficiently large gaps between the containers 2 for obliquely incident UV radiation for irradiating the container 2 in side wall areas which are aligned approximately in the transport direction 3a or opposite thereto. Thus, a complete curing of UV-reactive printing inks (inks) 2a is possible even when the container 2 is in a fixed rotational position on the transport means 3 .
  • the containers 2 are conveyed continuously through the irradiation tunnel 1, with the lamps 4 preferably emitting continuously, ie in the continuous wave method. In doing so, through the gaps between the containers 2 directly onto the first and second UV radiation incident on cooling bodies 5, 6 can already be largely absorbed there, depending on the degree of absorption ⁇ , in order to minimize the energy input into the irradiation tunnel 1. This also applies to radiation reflected on the containers 2 and/or on components in the irradiation tunnel 1 .
  • the interior air flows constantly along the liquid-cooled heat sinks 5-7, in particular due to forced air convection 11, and in the process emits heat energy to them.
  • the flow temperature and volume flow of the cooling liquid 9 can be adapted in a known simple manner to the waste heat to be removed from the irradiation tunnel 1 .
  • the irradiation tunnel 1 is preferably part of a direct printing machine (not shown) with printing units known per se for printing the UV-curing printing ink (ink) 2a onto the containers 2.
  • the UV-curing printing ink (ink) 2a can then immediately subsequently be placed in the irradiation tunnel 1 be fully cured with the help of lamps 4 for further processing/handling of the container 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (13)

  1. Tunnel d'irradiation (1) pour des récipients (2), comprenant: un moyen de transport (3) pour les récipients (2) ; des lampes (4) agencées le long du moyen de transport (3) afin d'irradier des récipients (2) grâce à des UV ; et un dispositif de refroidissement permettant de refroidir l'intérieur du tunnel d'irradiation (1), dans lequel le dispositif de refroidissement comprend des dissipateurs thermiques à refroidissement liquide (5, 6) qui s'étendent dans des régions d'irradiation (4a) des lampes (4), caractérisé en ce que les dissipateurs thermiques à refroidissement liquide présentent un revêtement absorbant les UV et/ou sont anodisés avec un degré d'absorption moyen α d'au moins 0,5 dans une plage spectrale comprise entre 200 et 450 nm.
  2. Tunnel d'irradiation selon la revendication 1, dans lequel les lampes (4) sont agencées des deux côtés du moyen de transport (3) et les dissipateurs thermiques (5, 6), considérés de manière perpendiculaire à la direction de transport (3a), sont formés au moins entre les lampes (4), en particulier d'une manière qui encadre les lampes (4).
  3. Tunnel d'irradiation selon la revendication 1 ou 2, comprenant en outre au moins un dissipateur thermique à refroidissement liquide (7) formé sur le moyen de transport (3).
  4. Tunnel d'irradiation selon l'une quelconque des revendications précédentes, dans lequel les dissipateurs thermiques à refroidissement liquide (5 à 7) comprennent des plaques creuses (8) en métal, en particulier en un alliage d'aluminium.
  5. Tunnel d'irradiation selon au moins l'une quelconque des revendications précédentes, comprenant en outre au moins un conduit de ventilation (12) permettant de souffler de l'air d'alimentation (14).
  6. Tunnel d'irradiation selon la revendication 5, dans lequel le moyen de transport (3) est une bande transporteuse destinée au transport debout des récipients (2) et le conduit de ventilation (12) débouche dans le tunnel d'irradiation (1) en dessous de la bande transporteuse.
  7. Tunnel d'irradiation selon la revendication 5 ou 6, comprenant en outre une soufflante (13) alimentant le conduit de ventilation (12) et un dispositif d'aspiration (15) destiné à l'air d'échappement (16) du tunnel d'irradiation (1), dans lequel la soufflante (13) est conçue au moins pour le remplacement complet de l'air d'échappement (16) aspiré.
  8. Tunnel d'irradiation selon au moins l'une quelconque des revendications précédentes, dans lequel les lampes (4) sont des lampes UV refroidies séparément et permettant le durcissement d'encres d'impression (2a) durcissant aux UV sur les récipients (2).
  9. Machine d'impression directe pour des récipients (2), comprenant des groupes d'impression permettant d'appliquer des encres d'impression (2a) durcissant aux UV sur les récipients (2), et comprenant un tunnel d'irradiation (1) selon au moins l'une quelconque des revendications précédentes agencé en aval des groupes d'impression afin de durcir les encres d'impression (2a) grâce à des UV.
  10. Procédé pour irradier des récipients (2) dans un tunnel d'irradiation (1) selon au moins l'une quelconque des revendications précédentes, dans lequel de l'encre d'impression (2a) durcissant aux UV et présente sur les récipients (2) est durcie dans les régions d'irradiation (4a) des lampes (4) et les dissipateurs thermiques à refroidissement liquide (5, 6) absorbent le rayonnement UV issu directement des lampes (4) avec un degré d'absorption α moyen d'au moins 0,5 dans une plage spectrale comprise entre 200 et 450 nm.
  11. Procédé selon la revendication 10, dans lequel les récipients (2) sont transportés dans une position de rotation constante à travers le tunnel d'irradiation (1) et les lampes (4) irradient les récipients (2) des deux côtés et en particulier sur toute leur circonférence.
  12. Procédé selon la revendication 11 ou 10, dans lequel les récipients (2) sont transportés à une faible distance (21) les uns des autres qui est au moins deux fois plus grande que la plus grande dimension (22) des récipients (2) dans la direction de transport (3a).
  13. Procédé selon l'une quelconque des revendications 10 à 12, dans lequel l'air présent dans le tunnel d'irradiation (1) circule le long des dissipateurs thermiques (5 à 7), en particulier par convection forcée d'air (11), et l'énergie thermique est transférée à un fluide de refroidissement (9) parcourant les dissipateurs thermiques (5 à 7).
EP18735261.2A 2017-09-04 2018-06-27 Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients Active EP3678790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017215453.5A DE102017215453A1 (de) 2017-09-04 2017-09-04 Bestrahlungstunnel für Behälter und Verfahren zur Bestrahlung von Behältern
PCT/EP2018/067289 WO2019042625A1 (fr) 2017-09-04 2018-06-27 Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients

Publications (2)

Publication Number Publication Date
EP3678790A1 EP3678790A1 (fr) 2020-07-15
EP3678790B1 true EP3678790B1 (fr) 2022-03-23

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EP18735261.2A Active EP3678790B1 (fr) 2017-09-04 2018-06-27 Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients

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EP (1) EP3678790B1 (fr)
CN (1) CN212883369U (fr)
DE (1) DE102017215453A1 (fr)
WO (1) WO2019042625A1 (fr)

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DE102019125845A1 (de) * 2019-09-25 2021-03-25 Krones Aktiengesellschaft Vorbehandlungsmaschine und Vorbehandlungsverfahren für Behälter
CN112066696A (zh) * 2020-09-30 2020-12-11 上海瑞姿包装材料股份有限公司 一种包装瓶烘干冷却***
IT202100014864A1 (it) * 2021-06-08 2022-12-08 Quantix Digital S R L Dispositivo di pretrattamento e macchina da stampa digitale a getto di inchiostro che include tale dispositivo di pretrattamento

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB557252A (en) * 1942-08-19 1943-11-11 Gen Electric Co Ltd Improvements in apparatus for exposing objects to radiant heat
CH325668A (de) * 1953-10-05 1957-11-15 Philips Nv Verfahren zum Sterilisieren von Hohlgegenständen mit Ultraviolettstrahlung und mittels dieser Strahlung erzeugtem Ozon
US4048916A (en) * 1975-09-26 1977-09-20 Sun Chemical Corporation Curing section for continuous motion decorator
US4008401A (en) * 1975-10-01 1977-02-15 Dart Industries Inc. U. V. curing system
US4143278A (en) * 1977-05-16 1979-03-06 Geo. Koch Sons, Inc. Radiation cure reactor
DE3322401C1 (de) * 1983-06-22 1984-11-08 Unilever N.V., Rotterdam Trocknungseinrichtung für bedruckte bzw. beschichtete Becher oder dergleichen
US4503086A (en) * 1983-08-22 1985-03-05 Adolph Coors Company Device and method for uniformly curing uv photoreactive overvarnish layers
US4839522A (en) * 1987-07-29 1989-06-13 American Screen Printing Company Reflective method and apparatus for curing ink
JP4993666B2 (ja) * 2006-05-23 2012-08-08 トリニティ工業株式会社 紫外線塗料硬化設備、塗料硬化方法

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WO2019042625A1 (fr) 2019-03-07
CN212883369U (zh) 2021-04-06
EP3678790A1 (fr) 2020-07-15

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