WO2016061605A1 - Dispositif d'impression d'un substrat - Google Patents

Dispositif d'impression d'un substrat Download PDF

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Publication number
WO2016061605A1
WO2016061605A1 PCT/AT2015/050265 AT2015050265W WO2016061605A1 WO 2016061605 A1 WO2016061605 A1 WO 2016061605A1 AT 2015050265 W AT2015050265 W AT 2015050265W WO 2016061605 A1 WO2016061605 A1 WO 2016061605A1
Authority
WO
WIPO (PCT)
Prior art keywords
printing
endless belts
endless
endless belt
printed image
Prior art date
Application number
PCT/AT2015/050265
Other languages
German (de)
English (en)
Inventor
Markus LESTERL
Michael PROSCHEK
Original Assignee
Berndorf Band 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 Berndorf Band Gmbh filed Critical Berndorf Band Gmbh
Publication of WO2016061605A1 publication Critical patent/WO2016061605A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/007—Use of printing belts

Definitions

  • the invention relates to a device for printing a substrate with at least one printed image.
  • the invention relates to a method for applying a printed image to a substrate.
  • a two-sided printing of substrates in particular of membranes, methods have become known in which the printed images are applied directly by means of printing devices on the surfaces to be printed.
  • known methods have the disadvantage that the surfaces of the membrane are printed consecutively and stepwise in time, resulting in long production times and high production costs.
  • the device has a double belt press with at least two endless belts, each of the at least two endless belts between at least two rollers is arranged, of which at least one is driven, so that each of the endless belts in At least two printing devices for printing the at least one printed image are arranged in front of an entry into a pressing region of the double belt press in the direction of rotation of the at least two endless belts, one on the opposite sides of the pressing region at least two printing devices is arranged and the printing direction of a first printing device of the at least two printing devices on a surface of a first endless belt of the at least two endless belts and the printing direction of a second Druckvo direction of the at least two printing devices is directed to a surface of a second endless belt of the at least two endless belts.
  • At least one dryer for drying the printed images is arranged between each of the at least two printing devices and the pressing region.
  • Contamination of the endless belts and a standstill of the device caused by cleaning s can be avoided by at least partially covering the at least two endless belts by at least one film moving in synchronism with the endless belts.
  • a particularly good protection of the endless belts can be achieved in that the apparatus for each of the films each have a storage roll and a take-up roll, wherein viewed in the direction of rotation of the endless belts each of the printing devices between the pressing region and one of the storage rolls is arranged, wherein the take-up rolls in a direction of movement of the substrate viewed behind the double belt press are arranged.
  • This embodiment makes it possible to ensure that a large part of the surfaces of the endless belts facing the printing devices is covered and protected against contamination. This makes it possible to efficiently minimize production stoppages due to cleaning work.
  • the take-up rollers are driven, wherein the drives of the take-up rollers and of drive rollers of the endless belts can be synchronized with one another.
  • the invention is not limited thereto and other printing methods such as inkjet or laser printing, etc. may be used, it is provided according to a preferred embodiment of the invention that the at least two printing devices are designed as screen printing devices.
  • the abovementioned object can also be achieved by a method of the type mentioned at the outset in that it is carried out with a device according to the invention and in a step i) by means of the first printing device a first printed image directly on a surface of the first endless belt or on a the first endless belt at least partially covering and moving synchronously with the first endless belt printed film and by means of the second printing device, a second printed image directly on a surface of the second endless belt or on the second endless belt at least partially covering and moving synchronously with the second endless belt film is printed, wherein in a step ii) the first and the second printed image by moving the endless belts and if any of the films in the direction of rotation in the
  • Pressing region are transported and in a step iii) the first and second printed image on two opposite sides of the substrate, which is moved by the pressing region between the endless belts, by exerting a pressing pressure in the pressing region of the surfaces of the endless belts or of the films become.
  • step i) the first and the second printed image are applied by means of a screen printing process.
  • dyes for screen printing inks or disperse dyes, such as azo dyes, anthraquinone dyes or finely divided metal, such as platinum, can be used.
  • step ii) the first and the second printed image are dried.
  • the pressing region is heated in a first zone in the direction of movement of the substrate and is cooled in a second zone lying after the first zone.
  • the method for transferring the printed image onto the substrate or the membrane can thus be a thermal transfer or transfer printing process, wherein the double belt press can be designed as a thermal transfer press.
  • FIG. 1 shows a first variant of a device according to the invention
  • Fig. 2 shows a second variant of a device according to the invention.
  • an apparatus 1 for printing on a substrate 2 has a double belt press 3 with two endless belts 4, 5 revolving in a direction of rotation represented by arrows.
  • Each of the endless belts 4, 5 is arranged between two rollers 9, 10, 13, 14, of which at least one is driven and serves as a deflection drum.
  • An exemplary distance between the centers of the rollers 9 and 10 or 13 and 14 may be between 3 and 20 m, in particular between 4 and 7 m, for example 4.5 m.
  • Exemplary dimensions for the endless belts 4, 5 are between 10 and 50 m, in particular lim for the length and 0.4 to 3 m, in particular 0.75 m for the width and 0.5 to 1.5 mm, in particular 0.8 mm, for the strip thickness.
  • a pressing pressure in the pressing region can be, for example, between 0.5 and 5 bar, in particular between 0.8 and 3 bar, for example 1 bar.
  • a pressing pressure in the pressing region 6 can be provided for generating the required pressing pressure on the inner sides of the endless belts 4, 5 depending a roller carpet, which can be pressed by means of press plates in the direction of the opposite roller carpet.
  • the press plates can be pressed against the roll carpets by means of hydraulic, pneumatic, electromechanical or pneumatic actuators, or they can also be acted upon by means of a pressure medium.
  • roller carpets and sliding elements 24, 25 may be provided which are pressed against each other.
  • the sliding elements 24, 25 may be formed as heating plates.
  • the sliding elements 24, 25 have a temperature between 100 and 200 ° C, for example 120 °.
  • a cooling section 26, 27 can be arranged in the pressing region 6 behind the sliding elements 24, 25.
  • the cooling section 26, 27 can likewise be realized by means of sliding elements, which can be formed as plates, through which a cooling liquid flows, which are held at a lower temperature than the sliding elements 24, 25.
  • a predetermined temperature gradient can occur in the cooling section 27 be respected.
  • the cooling section 26, 27 e e cooling of 80 ° K can be achieved.
  • zones 17, 18 of different temperatures can be generated in the pressing area 6.
  • two printing devices 7, 8, preferably screen printing devices, are arranged in front of an inlet into the pressing region 6 of the double belt press 3.
  • the printing direction of the printing device 7 is directed onto a surface of the endless belt 4 and the printing direction of the printing device 8 on a surface of the endless belt 5.
  • the direction of printing is understood to mean the direction in which a printed image 15, 16 is printed by means of the printing device 7, 8.
  • the printed images 15, 16 can be produced, for example, by applying finely divided platinum by means of the printing devices 7, 8.
  • the printing device 7 is arranged directly above the roller 10 and on the side of an upper strand of the endless belt 4, as shown in FIG. 1 can be seen directly. However, the printing device 7 could also be arranged further to the right or left in the image and thus also in an area under the roll 10 or in a region of the upper run of the endless belt 4 further from the roll 10.
  • the printing device 8 can also be arranged directly above the roller 14 of the endless belt 5. Likewise, the second printing device 8 can also be arranged further to the right or left in the image and thus also in a region below or above the roller 14 or in a region of the lower strand of the endless belt 5 remote from the roller 14.
  • a respective dryer 19, 35 for drying the printed images 15, 16 may be arranged.
  • the dryer 19, 35 may for example be designed as a heated tunnel, which is traversed by the respective endless belt 4, 5.
  • the dryer 19, 35 may also be one or more heated fans.
  • the dryer may produce a temperature between 70 and 100 ° C, preferably about 80 ° C, but it should be noted at this point that these are merely exemplary values.
  • cleaning rollers 28, 29 can be provided whose surfaces remove soiling of the endless belts 4, 5.
  • the surfaces of the cleaning rollers 28, 29 may also be absorbent.
  • the cleaning rollers 28, 29 may comprise a roller body of an absorbent material, for example of a textile, non-woven or spongy material, etc.
  • the endless belts 4, 5 can each be covered by a film 11, 12 moving in synchronism with the endless belts.
  • the films 11 and 12 cover the respective endless belts 4, 5 in the illustrated exemplary embodiment, with the exception a pointing away from the pressing portion 6 surface portion of the rollers 10, 14 substantially completely.
  • the device 1 can have for each of the films 11, 12 a respective storage roll 20, 21 and a winding roll 22, 23.
  • each of the printing devices 7, 8 is arranged between the pressing region 6 and one of the storage rollers 20, 21.
  • the winding rollers 22, 23 are arranged in a direction of movement of the substrate 2 behind the double belt press 3 and preferably driven to move the films 11, 12 synchronously and in the same direction with the endless belts 4, 5.
  • the substrate 2 can also be unwound from a storage roll 34 and wound up on a take-up roll.
  • the first printing device 15 is printed directly onto a surface of the first endless belt 4 or onto the film 11 covering the first endless belt 4 and moving synchronously with the first endless belt 4.
  • the second printing device 8 is preferably at the same time the second printed image 16 directly on a surface of the second endless belt 5 or on the second endless belt 5 covering and synchronously with the second endless belt 5 moving film 12 printed.
  • a step ii) the first and the second printed image 15, 16 are transported by moving the endless belts 4, 5 and, if present, the films 11, 12 in the circumferential direction into the pressing region 6.
  • the first and second printed images 15, 16 are then applied by applying a pressing pressure and / or temperature action in the pressing region 6 to two opposite sides of the substrate 2 from the surfaces of the endless belts 4, 5 or the films 11, 12 transmitted.
  • the printed image 15 is printed on a first side of the substrate 2 and the printed image 16 on a second, the first side opposite side of the substrate 2, preferably by means of a screen printing process.
  • the first and the second printed image 15, 16 can be dried in the dryers 19 and 35.
  • the pressing region 6 can, as already mentioned above, be heated in the first zone 17 and cooled in the second zone 18.
  • the position of the printed images 15, 16 can be detected and checked whether this corresponds to a desired position.
  • the rotational speed of the endless belts 4, 5 and the films 11, 12 can be adjusted or even the printing process itself be adjusted by appropriate control of the printing devices 7 and 8.
  • the quality (amount, layer thickness, color, etc.) of the applied pressure medium can be checked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)

Abstract

L'invention concerne un dispositif (1) et un procédé d'impression d'au moins une image d'impression (15, 16) sur un substrat (2), le dispositif (1) comprenant une presse à double bande (3) qui comporte au moins deux bandes sans fin (4, 5), chacune desdits au moins deux bandes sans fin (4, 5) étant disposée entre au moins deux rouleaux (9, 10, 13, 14), dont au moins un est entraîné, de sorte que chacune des bandes sans fin (4, 5) circule dans une direction circonférentielle entre les au moins deux rouleaux (9, 10, 13, 14), au moins deux dispositifs d'impression (7, 8) destinés à imprimer au moins une image d'impression (15, 16) étant disposées avant une entrée dans une zone (6) de la presse à double bande (3) par référence au sens de circulation des au moins deux bandes sans fin, un des au moins deux dispositifs d'impression (7, 8) étant disposé sur des côtés opposés de la zone de la presse (6) et la direction d'impression d'un premier dispositif d'impression (7) des au moins deux dispositifs d'impression (7, 8) étant tournée vers une surface d'une première bande sans fin (4) des au moins deux bandes sans fin (4, 5) et la direction d'impression d'un second dispositif d'impression (8) des au moins deux dispositifs d'impression (7, 8) étant tournée vers une surface d'une seconde bande sans fin (5) des au moins deux bandes sans fin (4, 5).
PCT/AT2015/050265 2014-10-22 2015-10-22 Dispositif d'impression d'un substrat WO2016061605A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50757/2014 2014-10-22
AT507572014 2014-10-22

Publications (1)

Publication Number Publication Date
WO2016061605A1 true WO2016061605A1 (fr) 2016-04-28

Family

ID=55022230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2015/050265 WO2016061605A1 (fr) 2014-10-22 2015-10-22 Dispositif d'impression d'un substrat

Country Status (2)

Country Link
TW (1) TW201628866A (fr)
WO (1) WO2016061605A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108001035A (zh) * 2017-12-30 2018-05-08 海宁泰威新材料有限公司 一种篷盖布生产用表面印花装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793296A (zh) * 2020-12-30 2021-05-14 海南金橡晨星塑料有限公司 一种塑料制品表面图案印刷机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072461A1 (fr) * 1981-08-19 1983-02-23 Herberts Gesellschaft mit beschränkter Haftung Procédé pour l'impression en continu sur une feuille en métal recouverte d'une couche en matiére plastique
EP0228570A2 (fr) * 1985-12-21 1987-07-15 Theodor Hymmen Firma Procédé et dispositif de fabrication d'une structure à embossage sur des bandes
US20060017942A1 (en) * 2003-07-26 2006-01-26 Clark Lloyd D Web heat transfer press with air bearing
DE102005044648A1 (de) * 2005-09-19 2007-03-22 Held, Kurt Schmelzimprägnierend veredelte Faser-Plattenwerkstoffe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072461A1 (fr) * 1981-08-19 1983-02-23 Herberts Gesellschaft mit beschränkter Haftung Procédé pour l'impression en continu sur une feuille en métal recouverte d'une couche en matiére plastique
EP0228570A2 (fr) * 1985-12-21 1987-07-15 Theodor Hymmen Firma Procédé et dispositif de fabrication d'une structure à embossage sur des bandes
US20060017942A1 (en) * 2003-07-26 2006-01-26 Clark Lloyd D Web heat transfer press with air bearing
DE102005044648A1 (de) * 2005-09-19 2007-03-22 Held, Kurt Schmelzimprägnierend veredelte Faser-Plattenwerkstoffe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108001035A (zh) * 2017-12-30 2018-05-08 海宁泰威新材料有限公司 一种篷盖布生产用表面印花装置

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Publication number Publication date
TW201628866A (zh) 2016-08-16

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