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EP1677062A1 - Dispositif pour le séchage d'encre d'imprimerie - Google Patents

Dispositif pour le séchage d'encre d'imprimerie Download PDF

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Publication number
EP1677062A1
EP1677062A1 EP04030977A EP04030977A EP1677062A1 EP 1677062 A1 EP1677062 A1 EP 1677062A1 EP 04030977 A EP04030977 A EP 04030977A EP 04030977 A EP04030977 A EP 04030977A EP 1677062 A1 EP1677062 A1 EP 1677062A1
Authority
EP
European Patent Office
Prior art keywords
light sources
plane
reflector
concave
drying
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Withdrawn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
EP04030977A
Other languages
German (de)
English (en)
Inventor
Dagobert Giradelli
Herbert Mayrhofer
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.)
Dryer Systems Trocknerbau GmbH
Original Assignee
Dryer Systems Trocknerbau GmbH
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 Dryer Systems Trocknerbau GmbH filed Critical Dryer Systems Trocknerbau GmbH
Priority to EP04030977A priority Critical patent/EP1677062A1/fr
Publication of EP1677062A1 publication Critical patent/EP1677062A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a drying device for drying printing ink.
  • a drying device for drying printing ink is known, for example, from DE 39 34 905 C2.
  • the known drying device has tubular lamps which are arranged in a grid pattern in several levels one above the other.
  • the object of the invention is to provide a drying device for drying printing ink, which can be achieved with a particularly simple design particularly short drying times.
  • a drying apparatus for drying ink having a plurality of tubular first light sources arranged in parallel with each other in a first plane, a plurality of tubular second light sources parallel to the first light sources and projecting onto the first plane are arranged laterally offset relative to the first light sources in a second plane, which extends above the first plane and parallel thereto, and a planar reflector having a plurality of concave surface regions in which the reflector surface is concave in cross section of the light sources, and along the light sources extend, wherein above each of the light sources each at least one concave surface area is provided.
  • the tubes of the first and second light source may also be arranged crossed to each other.
  • a first basic idea of the invention can be seen in arranging a multiplicity of tubular light sources parallel to one another in two parallel planes, wherein the light sources in the second plane are offset laterally relative to the light sources in the first plane.
  • Such an arrangement of the light sources allows a particularly homogeneous illumination of a surface to be dried and disposed below the two planes, whereby a particularly homogeneous and uniform drying can be achieved.
  • the light sources in the different planes are advantageously laterally offset relative to one another in perpendicular projection onto the first plane and / or the second plane.
  • a lateral offset can in principle be given in the radial direction of the light sources and / or in the longitudinal direction of the light sources.
  • only a radial offset is given.
  • planar reflector which, viewed in the direction of the surface normal of the planes, extends above the two planes.
  • this planar reflector has concave surface areas, wherein each light source is assigned at least one concave surface area. These concave surface areas can form concave mirrors, by means of which the light emitted upward by the light sources is thrown back in a targeted manner onto the plane to be dried arranged below the two planes.
  • the first and the second light sources in an identical manner.
  • the first light sources may also be of different types as the second light sources. It is particularly advantageous that the first light sources have an emission spectrum that differs from an emission spectrum of the second Differs light sources.
  • the light sources are fluorescent tubes, the light sources may have, for example, different gas fillings and / or different coatings.
  • the emission spectra can be understood in particular to mean the emission spectra during normal operation of the light sources.
  • the preferred design of the light sources with different emission spectra, a wide ink palette can be dried particularly evenly and quickly.
  • the emission spectrum of the first light sources is longer-wavelength than the emission spectrum of the second light sources.
  • the reflector-remote, first light sources therefore preferably emit light of longer wavelength than the second, more light-like, light sources.
  • the first light sources can radiate in the infrared range and the second light sources in VIS and / or in the UV range. Due to the preferred arrangement of the longer-wavelength light sources in front of the shorter-wave light sources and the reflector, an atmospheric attenuation, in particular of the light emitted by the first light sources, can be reduced.
  • a particularly uniform color drying over an extended surface can be obtained according to the invention in that the flat reflector has surface areas with different reflectivities.
  • the reflectivity of the concave surface regions located above the first light sources differs from the reflectivity of the concave surface regions located above the second light sources.
  • intensity differences of the different light sources can be amplified and / or attenuated.
  • the first and / or second light sources are arranged periodically in the corresponding planes. This includes In particular, it can be understood that the first light sources are arranged equidistantly in the radial direction in the first plane and / or that the second light sources are arranged equidistantly in the radial direction in the second plane.
  • the distance between the first light sources arranged at the edge is smaller than the distance between the first light sources arranged centrally and / or the distance between the second light sources arranged at the edge is smaller as the distance centered second light sources.
  • the distance can be understood as the distance in the radial direction of the tubular light sources.
  • the first and / or second light sources are arranged in groups, which are arranged in particular periodically.
  • groups of two or more first light sources can be arranged equidistantly in the radial direction of the light sources.
  • the number of light sources in the groups is basically arbitrary and may vary within the device. For example, it may be provided that a greater number of light sources are provided in each group in the edge regions of the device than in central regions of the device. If three or more light sources are provided in a group, these are suitably arranged equidistantly.
  • the reflector surface is formed along the light sources with a constant cross-section, that is to say that the reflector surface is straight in longitudinal section with respect to the light sources.
  • a longitudinal section is understood to mean a section parallel to the longitudinal direction of the light sources, and a cross-section to a section perpendicular to the longitudinal direction of the light sources.
  • the reflector surface, in particular in the concave surface regions it is particularly preferred for the reflector surface, in particular in the concave surface regions, to be concave or convex in longitudinal section with respect to the light sources. This makes it possible to obtain a particularly homogeneous radiation image viewed in the longitudinal direction of the light sources or to selectively vary the radiation image in the longitudinal direction.
  • first and second light sources may be provided according to the invention. It is particularly advantageous according to the invention that below the reflector tubular third light sources are provided, which are arranged at an angle to the first and the second light sources.
  • An angular arrangement may, in particular, be understood to mean an acute-angled or a rectangular arrangement.
  • the third light sources extend in a third plane, which may be provided in particular between the first and the second plane.
  • the homogeneity of the light intensity in the dry plane can be further improved by the fact that the concave surface areas each have a focal line and that the light sources are arranged in the focal lines.
  • a further aspect of the invention resides in a device for printing textiles with a color transfer device, preferably a screen printing element, for transferring printing ink onto textile pieces, a drying device according to the invention and an actuator device for moving the textile pieces between the ink transfer device and the drying device.
  • a drying device preferably a screen printing element
  • an actuator device for moving the textile pieces between the ink transfer device and the drying device.
  • FIGS. 1 and 2 A first embodiment of a drying device according to the invention is shown in FIGS. 1 and 2.
  • the drying apparatus has a plurality of tube-like, first light sources 10 which extend in a first plane.
  • the drying device has second light sources 20, which run in a second plane, which is arranged parallel to the first plane.
  • the tubular light sources 10 are parallel to each other and are arranged equidistantly in the first plane.
  • the second light sources 20 are parallel and equidistant from each other.
  • the first light sources 10 are opposite the second light sources 20 in the radial direction of the light sources 10, 20 arranged offset.
  • a flat reflector 30 In the direction of the surface normals of the two planes, seen above the light sources 10, 20, a flat reflector 30 is provided.
  • This planar reflector 30 has concave surface areas 31, 32 in cross-section, the concave surface areas 31 extending above the first light sources 10 and the surface areas 32 extending above the second light sources 20.
  • the surface regions 31, 32 in this case directly adjoin one another. Basically, between the surface regions 31, 32 but also intermediate areas may be provided, in which the flat reflector in cross-section may be flat, but also concave or convex.
  • the radii of curvature of the concave surface areas 31, 32 are basically arbitrary. They may also be very large, based on the dimensions of the drying device and / or the light sources.
  • the planar reflector 30 is concave in longitudinal section of the light sources 10, 20, ie parallel to these.
  • a concave longitudinal section can basically be provided in the surface regions 32, in the surface regions 31 and / or in intermediate regions which may be arranged therebetween.
  • FIG. 1 differs from the embodiment of FIG. 2 only in that the reflector 30 is planar in the longitudinal section of the light sources 10, 20.
  • Such a planar embodiment can in principle be provided in the surface regions 31, in the surface regions 32 and / or in any intermediate regions provided therebetween.
  • FIG. 4 Another embodiment of a drying device according to the invention is shown in FIG. 4.
  • the embodiment of FIG. 4 differs from the embodiment of FIG. 1 in that in each case two second light sources 20 ', 20 "are arranged in equidistant groups.
  • first light sources 10 are provided only between adjacent groups of second light sources 20 ', 20 ", but not between the two light sources 20', 20" of a group itself may be provided in the form of groups.
  • FIG. 5 Another embodiment of a drying device according to the invention is shown in FIG. For the sake of clarity, this figure does not show a planar reflector. In principle, a drying device with reflector of any desired design can also be regarded as the object of the invention.
  • the drying apparatus of Fig. 5 differs from the drying apparatus of Fig. 1 in that the first light sources 10 and the second light sources 20 are each aperiodically, i. not equidistant in the corresponding levels are arranged. Rather, the distance of cross-section edge arranged first light sources 10 is smaller than the distance of cross-sectionally arranged first light sources 10. Likewise, the distance edge side second light sources 20 is smaller than the distance centrally arranged light sources 20. This can also in peripheral areas a uniform illumination be achieved.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
EP04030977A 2004-12-29 2004-12-29 Dispositif pour le séchage d'encre d'imprimerie Withdrawn EP1677062A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04030977A EP1677062A1 (fr) 2004-12-29 2004-12-29 Dispositif pour le séchage d'encre d'imprimerie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04030977A EP1677062A1 (fr) 2004-12-29 2004-12-29 Dispositif pour le séchage d'encre d'imprimerie

Publications (1)

Publication Number Publication Date
EP1677062A1 true EP1677062A1 (fr) 2006-07-05

Family

ID=34928032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030977A Withdrawn EP1677062A1 (fr) 2004-12-29 2004-12-29 Dispositif pour le séchage d'encre d'imprimerie

Country Status (1)

Country Link
EP (1) EP1677062A1 (fr)

Citations (9)

* 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
GB849403A (en) * 1958-01-22 1960-09-28 Svenska Cellulosa Aktiebolagat Improvements in and relating to fibre board panels and similar moulded bodies
DE1124432B (de) * 1954-01-22 1962-02-22 Dr Karlmann Brechenmacher Tragbare Trocknungsvorrichtung
US4037112A (en) * 1975-03-25 1977-07-19 Ppg Industries, Inc. Apparatus for crosslinking ultraviolet light curable coatings
DE3934905A1 (de) * 1989-10-19 1991-05-02 Schuster Morath Winfried Trockner, insbesondere zwischentrockner
AT4144U1 (de) * 1999-09-09 2001-02-26 Mayrhofer Herbert Strahler, insbesondere zum trocknen von farbe mit stabförmigen lampen
US6271532B1 (en) * 1997-05-19 2001-08-07 The Procter & Gamble Company Apparatus for generating controlled radiation for curing photosensitive resin
WO2003071029A2 (fr) * 2002-02-22 2003-08-28 Compact Engineering Limited Secheur infrarouge
FR2846404A1 (fr) * 2002-10-23 2004-04-30 Electricite De France Bloc optique de chauffage rapide

Patent Citations (9)

* 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
DE1124432B (de) * 1954-01-22 1962-02-22 Dr Karlmann Brechenmacher Tragbare Trocknungsvorrichtung
GB849403A (en) * 1958-01-22 1960-09-28 Svenska Cellulosa Aktiebolagat Improvements in and relating to fibre board panels and similar moulded bodies
US4037112A (en) * 1975-03-25 1977-07-19 Ppg Industries, Inc. Apparatus for crosslinking ultraviolet light curable coatings
DE3934905A1 (de) * 1989-10-19 1991-05-02 Schuster Morath Winfried Trockner, insbesondere zwischentrockner
US6271532B1 (en) * 1997-05-19 2001-08-07 The Procter & Gamble Company Apparatus for generating controlled radiation for curing photosensitive resin
AT4144U1 (de) * 1999-09-09 2001-02-26 Mayrhofer Herbert Strahler, insbesondere zum trocknen von farbe mit stabförmigen lampen
WO2003071029A2 (fr) * 2002-02-22 2003-08-28 Compact Engineering Limited Secheur infrarouge
FR2846404A1 (fr) * 2002-10-23 2004-04-30 Electricite De France Bloc optique de chauffage rapide

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