EP3107735B1 - Screen printing stencil and method for imaging it - Google Patents

Screen printing stencil and method for imaging it Download PDF

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Publication number
EP3107735B1
EP3107735B1 EP14821534.6A EP14821534A EP3107735B1 EP 3107735 B1 EP3107735 B1 EP 3107735B1 EP 14821534 A EP14821534 A EP 14821534A EP 3107735 B1 EP3107735 B1 EP 3107735B1
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EP
European Patent Office
Prior art keywords
fabric
printing
printing screen
layer
stencil
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.)
Not-in-force
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EP14821534.6A
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German (de)
French (fr)
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EP3107735A1 (en
Inventor
Heinz Brocker
Hans-Rudolf Frick
Matthias Rosenfelder
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Gallus Ferd Rueesch AG
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Gallus Ferd Rueesch AG
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Publication of EP3107735A1 publication Critical patent/EP3107735A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/248—Mechanical details, e.g. fixation holes, reinforcement or guiding means; Perforation lines; Ink holding means; Visually or otherwise detectable marking means; Stencil units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/14—Forme preparation for stencil-printing or silk-screen printing
    • B41C1/145—Forme preparation for stencil-printing or silk-screen printing by perforation using an energetic radiation beam, e.g. a laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0881—Machines for printing on polyhedral articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/38—Screens, Frames; Holders therefor curved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/243—Stencils; Stencil materials; Carriers therefor characterised by the ink pervious sheet, e.g. yoshino paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/247—Meshes, gauzes, woven or similar screen materials; Preparation thereof, e.g. by plasma treatment

Definitions

  • a method for producing such screen materials is for example in EP 0 182 195 A2 described.
  • electroformed templates are used.
  • the use of metal fleeces, plastic fabrics, perforated sheets, metal foils, even in combination with each other is possible.
  • color channels In order to ensure that color dots and color lines are printed accurately, it must be ensured when imaging the screen materials that line or punctiform forms are formed from the squeegee side of the screen materials to the printing material side of the screen materials Pass through passages, so-called color channels.
  • the color channels must not be interrupted or blocked by the tissue strands. Therefore, the color channels according to the prior art are made with a width which corresponds to a multiple of the diameter of the tissue strands (at least 2 to 2.5 times).
  • Such a sieve material is in the DE 10 2011 016 453 A1 described.
  • the color channels may have only a small width.
  • fabrics with a very fine weave structure are used. These are often woven from strands of less than 30 microns in diameter, so that a mesh size of 300 mesh (number of stitches per 25.4 mm) and more can be realized. Such fine screen materials are expensive to manufacture and have poor stability.
  • the holes in the known hexagonal, square and round hole geometry are made particularly fine.
  • the screen printing stencil according to the invention has at least one sieve-like fabric layer, in particular with tissue strands arranged at an angle to one another as support structure, wherein the fabric strands are arranged in particular at right angles to one another, and one illustrated stencil layer.
  • Electro-formed templates for example made of nickel, and perforated plates or perforated films, such as stainless steel films are considered in this context as a sieve-like fabric layers.
  • the stencil layer and the fabric layer are connected to each other, wherein the fabric layer is at least partially embedded in the stencil layer.
  • the stencil layer is provided with passages in order to allow a color flow from a doctor side of the screen printing stencil on a printing material side of the screen printing stencil.
  • a respective passage configured in this way can also be referred to as a color channel.
  • a respective passage may have differently configured channel walls. So be oblique and / or stepped and / or convex and / or concave channel walls considered advantageous.
  • the fabric layer of the screen printing stencil is designed as a woven steel fabric, in particular made of stainless steel. Alternatively, polyester fabrics can be used. It is also advantageous if the fabric layer is provided with a stabilizing metal coating, the metal coating in particular containing nickel. The fabric layer may possibly be calendered. Also a very strong calendering up to max. The simple wire thickness can be advantageous.
  • the stencil layer is formed by a polymer, in particular by a photopolymer, ie a light-sensitive polymer, which allows a particularly simple imaging.
  • the invention also relates to a method for imaging a screen-printing stencil having at least one sieve-like fabric layer as the support structure and an imageable stencil layer, wherein the stencil layer is provided with apertures during imaging, which can be referred to as color channels to a color flow from a doctor blade side on a printing material side of the screen printing stencil to enable.
  • a respective passage is formed such that it has a smaller opening on the printing material side than on the doctor side of the screen printing stencil.
  • the width 1 of the opening on the doctor blade side is greater than the diameter (D) of a fabric strand (1> D) and the width d of the opening on the printing material side corresponds at most to the diameter (D) of a woven strand (d ⁇ D).
  • the stencil layer is imaged by means of laser.
  • the laser is driven in such a way that it has different penetration depths, that is, it acts differently far below the surface of the stencil layer.
  • laser imaging involves the two alternatives curing by polymerization and Webewed the photo layer (similar to laser cutting).
  • the template layer can be imaged in classical exposure by using multiple film masks with adjusted exposure time and intensity.
  • the stencil layer is imaged with different light spectra, ie with light in different wavelength ranges.
  • the stencil layer can consist of several Be constructed emulsion layers of different sensitivity.
  • the stencil layer can also be imaged with specially designed masks, for example a film mask with locally different light transmission.
  • FIG. 6 shows a flat screen material 10 with a fabric layer 1 according to the prior art, which is provided on one side with a photo-polymer coating 2 (direct template).
  • a photo-polymer coating 2 direct template
  • an already imaged film can be applied to the screen structure 10 (indirect template).
  • the nickel-plated planar sieve material 10 is constructed from a fabric 1. Different tissue forms are possible, which are also referred to as tissue type.
  • Such screen materials 10 as well as the screen printing stencils 10 according to the invention are used in rotary screen printing:
  • FIG. 7 is a sieve 100 with a flat screen material 10 in cylindrical sleeve shape for the rotary screen printing indicated.
  • the screen material 10 is held by unspecified tails in its cylindrical shape.
  • Inside the screen 100 is an invisible squeegee of a screen printing unit to press paint through the screen material 10.
  • the orientation of the doctor blade may be parallel to the axis of rotation of the wire 100.
  • the circumferential direction U of the screen 100, in which this is rotated during printing, is indicated by a double arrow.
  • the screen printing stencil 10 has a printing material side 4 and a squeegee side 5.
  • On the doctor side 5 is an ink supply, which is applied by means of a doctor, not shown, on the doctor side 5 of the screen printing stencil 10.
  • ink 30 reaches the printing material side 4 of the screen printing stencil 10 and comes there into contact with a printing substrate 20.
  • a good color flow F through the passages 3 of the screen printing stencil 10 required.
  • the printing material-side 4 opening 9 of the screen printing stencil 10 must have a narrow width.
  • the passages 3 of the screen printing stencil 10 have the configuration described below:
  • the opening 9 is larger on the doctor blade side 5 with a width 1 than on the printing material side 4, where the opening has a width d.
  • the width 1 of the squeegee-side opening 9 is therefore also greater than the diameter D of a coated fabric strand 6.
  • the width d of the printing material-side opening is smaller than the diameter D of a coated fabric strand. So there is 1> D> d.
  • channel walls 8 more than the only one in FIG. 3 have shown stage.
  • the channel walls 8 may also have the shape of a free forming line, ie a fairly random geometry.
  • FIG. 3f illustrated the combination of different channel wall configurations for the two channel walls 8 is conceivable.
  • those in the FIGS. 1 and 3a to 3e Geometry variants are combined with each other.
  • FIG. 4 shows a plan view of a passage 3 from the doctor side 5.
  • the passage is designed as a linear color channel 3, for printing a line.
  • FIG. 5 plan views of a screen printing stencil 10 with a punctiform passage 3 from both sides of the screen printing stencil are shown: in Fig. 5a the printing material side 4 view and in Fig. 5b the rakel workede 5 view. Thanks to punctiform passages 3 with printing-material-side diameter d, fine dots having a diameter a can be printed.

Description

Die Erfindung betrifft eine Siebdruckschablone mit den oberbegrifflichen Merkmalen von Anspruch 1.The invention relates to a screen printing stencil with the preamble features of claim 1.

Stand der TechnikState of the art

Die industrielle Anwendung von Sieben und Geweben ist aus verschiedenen Fachgebieten bekannt.
Bei der Anwendung im Bereich der Filtration ist die quadratische Maschenform die übliche Ausführungsform. Für die Druckanwendung hat man diese Maschenform übernommen. Mit den verfügbaren Fotoschichten und den bekannten Auftragsverfahren lässt sich eine vernünftige Bildauflösung nur mit einer großen Zahl von "Abstützungen" erreichen. Deshalb werden zunehmend Gewebe mit hohen Maschenzahlen verwendet.The industrial application of fabrics and fabrics is known from various fields.
When used in the field of filtration, the square mesh is the usual embodiment. For the printing application, this mesh has been adopted. With the available photo layers and the well-known application methods, a reasonable image resolution can only be achieved with a large number of "supports". Therefore, increasingly high mesh fabrics are being used.

Beim Elektronikdruck werden möglichst dünne Siebe bzw. Gewebe mit möglichst dünnem Draht eingesetzt um einen guten Durchfluss der Pasten zu gewährleisten und um allerfeinste Bildmotive zu ermöglichen.
Bei der Solarzellenbeschichtung, d.h. der Solarzellenmetallisierung, werden ein hoher Pastenauftrag und eine präzise und feine Bildauflösung gefordert. Z.B. zum Auftragen von Leiterbahnen als Stromfinger mit möglichst geringer Abdeckung der Solarzellen, um so einen hohen Wirkungsgrad der Solarzellen sicherzustellen.
Die für den Elektronikdruck verwendeten Siebe bzw. Gewebesorten sind sehr teuer und empfindlich in der Verarbeitung, so dass sie für die Herstellung von Siebdruckplatten für den rotativen Siebdruck kaum geeignet sind. Die fehlende Eignung wird auch dadurch bedingt, dass die Siebgewebe beim Rotationssieb nur in einer Richtung, nämlich der Zylinderlängsachse gespannt werden können, im Flachsiebdruck hingegen jedoch in zwei Dimensionen.When electronic printing as thin as possible sieves or fabrics are used with the thinnest possible wire to ensure a good flow of pastes and to allow the finest of fine images.
In solar cell coating, ie solar cell metallization, a high paste application and a precise and fine image resolution are required. For example, for the application of printed conductors as a current finger with the lowest possible coverage of the solar cells, so as to ensure a high efficiency of the solar cells.
The screens or fabrics used for electronic printing are very expensive and sensitive to processing, so that they are hardly suitable for the production of screen printing plates for rotary screen printing. The lack of suitability is also due to the fact that the screen fabric in the rotary screen can be stretched in one direction only, namely the cylinder longitudinal axis, in flat screen printing, however, in two dimensions.

Beim Rotationssiebdruck wird die Farbe durch den hydrodynamischen Druck, welcher bei der Rotation des Siebes und bei angestellter Rakel vor der Rakelbrust entsteht, durch das Sieb transportiert. Konstruktionsbedingt lassen sich nur offene oder halboffene Rakelsysteme einsetzen, so dass der dynamische Druck von vielen Faktoren beeinflusst wird wie Viskosität, Füllmenge und Rotationsgeschwindigkeit. Durch eine Erhöhung der Rotationsgeschwindigkeit oder der Farbmenge kann der hydrodynamische Druck einfach verstärkt werden.
Ein solches Rotationssiebdruckwerk ist beispielsweise in der WO 99/19146 A1 beschrieben.In rotary screen printing, the color is transported through the screen by the hydrodynamic pressure generated by the rotation of the screen and by the squeegee in front of the squeegee. By design, only open or semi-open squeegee systems can be used, so that the dynamic pressure is influenced by many factors such as viscosity, filling quantity and rotational speed. By increasing the speed of rotation or the amount of ink, the hydrodynamic pressure can be easily increased.
Such a rotary screen printing unit is for example in the WO 99/19146 A1 described.

Als Grundstrukturen für Siebmaterialien werden nach dem Stand der Technik häufig Edelstahlgewebe mit Leinenbindung verwendet. Das Verhältnis von Sieböffnung, Kontaktfläche und Gewebedicke hat sich als geeignet erwiesen. Die Dicke der Struktur, also die Gewebedicke (Ausgangsmaß vor dem Kalandrieren) entspricht in etwa der zweifachen Drahtstärke. Die Grundstruktur wird einem weiteren Schritt in einem Kalandrierprozess bearbeitet und so auf die gewünschte Rohgewebedicke gebracht. Auch wird so eine höhere Glätte des Siebes und damit ein geringerer Sieb- und Rakelverschleiß erreicht. Im sich anschließenden Vernickelungsvorgang wird das Gewebe zwecks einer höheren mechanischen Stabilität und Verschleißfestigkeit verstärkt und die Abstützungspunkte im Bereich der Kreuzungspunkte vergrößert.As basic structures for screen materials, prior art stainless steel cloths are often used with linen weave. The ratio of sieve opening, contact area and fabric thickness has proven to be suitable. The thickness of the structure, ie the fabric thickness (initial dimension before calendering) corresponds approximately to twice the wire thickness. The basic structure is processed in a further step in a calendering process and brought to the desired raw fabric thickness. Also, a higher smoothness of the screen and thus a lower screen and blade wear is achieved. In the subsequent Vernickelungsvorgang the fabric is reinforced for the purpose of a higher mechanical stability and wear resistance and increases the support points in the region of the crossing points.

Ein Verfahren zur Herstellung solcher Siebmaterialien ist beispielsweise in der EP 0 182 195 A2 beschrieben.A method for producing such screen materials is for example in EP 0 182 195 A2 described.

Alternativ zu den gewebten Siebmaterialien werden elektrogeformte Schablonen verwendet.
Auch ist die Verwendung von Metallvliesen, Kunststoffgeweben, Lochblechen, Metallfolien, auch in Kombination miteinander möglich.As an alternative to the woven screen materials, electroformed templates are used.
The use of metal fleeces, plastic fabrics, perforated sheets, metal foils, even in combination with each other is possible.

Um sicherzustellen, dass Farbpunkte und Farblinien genau gedruckt werden, muss beim Bebildern der Siebmaterialien sichergestellt werden, dass von der Rakelseite der Siebmaterialien zur Bedruckstoffseite der Siebmaterialien linien- oder punktförmige Durchlässe, sog. Farbkanäle durchgehen. Die Farbkanäle dürfen nicht durch die Gewebestränge unterbrochen bzw. blockiert werden. Deshalb werden die Farbkanäle gemäß dem Stand der Technik mit einer Breite ausgeführt, welche einem Mehrfachen des Durchmessers der Gewebestränge (mind. 2 bis 2,5 fach) entspricht. Ein solches Siebmaterial ist in der DE 10 2011 016 453 A1 beschrieben.In order to ensure that color dots and color lines are printed accurately, it must be ensured when imaging the screen materials that line or punctiform forms are formed from the squeegee side of the screen materials to the printing material side of the screen materials Pass through passages, so-called color channels. The color channels must not be interrupted or blocked by the tissue strands. Therefore, the color channels according to the prior art are made with a width which corresponds to a multiple of the diameter of the tissue strands (at least 2 to 2.5 times). Such a sieve material is in the DE 10 2011 016 453 A1 described.

Sollen jedoch feine Linien (ca. 10 bis 100 Mikrometer) und Punkte gedruckt werden, wie dies z.B. für Elektronik und Solarzellen erforderlich ist, so dürfen die Farbkanäle nur eine geringe Breite aufweisen.However, if fine lines (about 10 to 100 micrometers) and dots are to be printed, as shown e.g. is required for electronics and solar cells, the color channels may have only a small width.

Um trotzdem einen Farbfluss von der Rakel- auf die Bedruckstoffseite der Siebmaterialien sicherzustellen werden Gewebe mit sehr feiner Webstruktur verwendet. Diese werden häufig aus Strängen mit weniger als 30 Mikrometer Durchmesser gewebt, sodass sich eine Maschenzahl von 300 Mesh (Anzahl Maschen pro 25,4 mm) und mehr realisieren lässt. Derartige feine Siebmaterialien sind teuer in der Herstellung und besitzen eine schlechte Stabilität.
Bei elektrogeformten Schablonen werden die Löcher in der bekannten Sechseck-, Viereck- und Rund-Lochgeometrie besonders fein ausgebildet.Nevertheless, in order to ensure a color flow from the squeegee to the printing material side of the screen materials, fabrics with a very fine weave structure are used. These are often woven from strands of less than 30 microns in diameter, so that a mesh size of 300 mesh (number of stitches per 25.4 mm) and more can be realized. Such fine screen materials are expensive to manufacture and have poor stability.
In the case of electroformed templates, the holes in the known hexagonal, square and round hole geometry are made particularly fine.

Aufgabenstellungtask

Aufgabe der vorliegenden Erfindung ist es, eine Siebdruckschablone zu schaffen welche eine ausreichende Stabilität aufweist und das Drucken von feinsten Linien bzw. Punkten ermöglicht. Weitere Aufgabe ist es, ein Verfahren zu beschreiben, wie eine solche Siebdruckschablone bebildert werden kann.Object of the present invention is to provide a screen printing stencil which has sufficient stability and allows the printing of fine lines or points. Another object is to describe a method of how such a screen printing stencil can be imaged.

Gelöst wird diese Aufgabe durch die Siebdruckschablone mit den Merkmalen von Anspruch 1 und durch ein Verfahren gemäß Anspruch 7.This object is achieved by the screen printing stencil with the features of claim 1 and by a method according to claim 7.

Die erfindungsgemäße Siebdruckschablone besitzt mindestens eine siebartige Gewebelage, insbesondere mit winklig zueinander angeordneten Gewebesträngen als Tragstruktur, wobei die Gewebestränge insbesondere rechtwinklig zueinander angeordnet sind, und eine bebilderte Schablonenschicht. Auch Elektrogeformte Schablonen, z.B. aus Nickel, und Lochbleche oder gelochte Folien, z.B. Edelstahlfolien werden in diesem Zusammenhang als siebartige Gewebelagen angesehen. Die Schablonenschicht und die Gewebelage sind miteinander verbunden, wobei die Gewebelage zumindest teilweise in die Schablonenschicht eingebettet ist. Die Schablonenschicht ist mit Durchlässen versehen, um einen Farbfluss von einer Rakelseite der Siebdruckschablone auf eine Bedruckstoffseite der Siebdruckschablone zu ermöglichen. Erfindungsgemäß besitzt ein jeweiliger Durchlass auf der Bedruckstoffseite der Siebdruckschablone eine kleinere Öffnung, d.h. eine Öffnung kleinerer Breite, als auf der Rakelseite der Siebdruckschablone und bildet so einen von der Rakelseite zur Bedruckstoffseite durchgehenden Kanal als Durchlass für Farbe. Erfindungsgemäß ist die Öffnung des Durchlasses auf der Rakelseite größer als der Durchmesser eines ggfs. beschichteten Gewebestranges. Die Öffnung des Durchlasses auf der Bedruckstoffseite entspricht maximal dem Durchmesser eines ggfs. beschichteten Gewebestranges. Dadurch lassen sich besonders feine Strukturen drucken. Die Öffnung des Durchlasses auf der Bedruckstoffseite kann auch deutlich kleiner sein als der Durchmesser eines ggfs. beschichteten Gewebestranges. Ein jeweiliger Durchlass kann dabei linienförmig mit einer gewissen Erstreckung oder punktförmig sein, um entweder Farblinien oder nur einzelne Punkte drucken zu können. Je nach zu druckendem Bild kommen die Durchlässe dann parallel versetzt, positionsgleich mit oder in einem schrägen Winkel zu den Gewebesträngen zum liegen.The screen printing stencil according to the invention has at least one sieve-like fabric layer, in particular with tissue strands arranged at an angle to one another as support structure, wherein the fabric strands are arranged in particular at right angles to one another, and one illustrated stencil layer. Electro-formed templates, for example made of nickel, and perforated plates or perforated films, such as stainless steel films are considered in this context as a sieve-like fabric layers. The stencil layer and the fabric layer are connected to each other, wherein the fabric layer is at least partially embedded in the stencil layer. The stencil layer is provided with passages in order to allow a color flow from a doctor side of the screen printing stencil on a printing material side of the screen printing stencil. According to the invention, a respective passage on the printing material side of the screen printing stencil has a smaller opening, ie an opening of smaller width, than on the squeegee side of the screen printing stencil and thus forms a passage extending from the squeegee side to the printing material side as a passage for ink. According to the invention, the opening of the passage on the doctor side is greater than the diameter of a possibly coated fabric strand. The opening of the passage on the substrate side corresponds at most to the diameter of a possibly coated fabric strand. This makes it possible to print very fine structures. The opening of the passage on the printing material side can also be significantly smaller than the diameter of a possibly coated fabric strand. A respective passage may be linear with a certain extent or punctiform in order to print either color lines or only individual points. Depending on the image to be printed, the passages are then offset in parallel, positionally equal to or at an oblique angle to the tissue strands to lie.

Durch eine derartige Siebdruckschablone wird in vorteilhafter Weise ermöglicht, besonders feine Linien und Punkte drucken zu können. Die kleine Öffnung des Durchlasses auf der Bedruckstoffseite ermöglicht besonders feine Linienbreiten, während die größere Öffnung auf der Rakelseite einen kontinuierlichen Farbfluss sicherstellt, so dass Linien und Punkte mit kontinuierlicher Farbauftragsmenge, d.h. konstanter Linienhöhe, gedruckt werden können.Such a screen printing stencil makes it possible in an advantageous manner to be able to print particularly fine lines and dots. The small opening on the substrate side allows for particularly fine line widths, while the larger squeegee side opening ensures a continuous flow of color, so that lines and dots of continuous ink coverage, i. constant line height, can be printed.

Ein jeweils derart ausgestalteter Durchlass kann auch als Farbkanal bezeichnet werden.A respective passage configured in this way can also be referred to as a color channel.

In vorteilhafter Weiterbildung der erfindungsgemäßen Siebdruckschablone kann ein jeweiliger Durchlass unterschiedlich ausgestaltete Kanalwände aufweisen. So werden schräge und/oder stufenförmige und/oder konvexe und/oder konkave Kanalwände als vorteilhaft erachtet.
In einer besonders vorteilhaften und daher bevorzugten Ausführungsform ist die Gewebelage der Siebdruckschablone als gewebtes Stahlgewebe ausgeführt, insbesondere aus Edelstahl. Alternativ können auch Polyestergewebe Verwendung finden. Weiter vorteilhaft ist es, wenn die Gewebelage mit einer stabilisierenden Metallbeschichtung versehen ist, wobei die Metallbeschichtung insbesondere Nickel enthält. Die Gewebelage kann ggfs. kalandriert sein. Auch eine sehr starke Kalandrierung bis max. der einfachen Drahtdicke kann vorteilhaft sein. Vorteilhafterweise wird die Schablonenschicht durch ein Polymer gebildet, insbesondere durch ein Fotopolymer, d.h. ein lichtsensitives Polymer, was eine besonders einfache Bebilderung ermöglicht.
Die Erfindung betrifft auch ein Verfahren zum Bebildern einer Siebdruckschablone mit mindestens einer siebartigen Gewebelage als Tragstruktur und einer bebilderbaren Schablonenschicht, wobei die Schablonenschicht beim Bebildern mit Durchlässen versehen wird, welche als Farbkanäle bezeichnet werden können, um einen Farbfluss von einer Rakelseite auf eine Bedruckstoffseite der Siebdruckschablone zu ermöglichen. Erfindungsgemäß wird ein jeweiliger Durchlass so ausgebildet, dass dieser eine kleinere Öffnung auf der Bedruckstoffseite als auf der Rakelseite der Siebdruckschablone aufweist. Erfindungsgemäß ist dabei die Breite 1 der Öffnung auf der Rakelseite größer als der Durchmesser (D) eines Gewebestranges (1 > D) und die Breite d der Öffnung auf der Bedruckstoffseite entspricht maximal dem Durchmesser (D) eines Gewebestranges (d ≦ D). Dadurch ergeben sich die obenstehend beschriebenen Vorteile.
In vorteilhafter Weiterbildung des erfindungsgemäßen Verfahrens wird die Schablonenschicht mittels Laser bebildert. Der Laser wird dabei so angesteuert, dass er unterschiedliche Eindringtiefen hat, d.h. unterschiedlich weit unter der Oberfläche der Schablonenschicht wirkt. Durch Laser Bebildern umfasst dabei die zwei Alternativen Aushärten durch Polymerisation und Webrennen der Fotoschicht (ähnlich dem Laserschneiden). Alternativ kann die Schablonenschicht in klassischer Belichtung mittels Verwendung von mehreren Filmmasken bei angepasster Belichtungszeit und -intensität bebildert werden. In einer alternativen Verfahrensvariante wird die Schablonenschicht mit unterschiedlichen Lichtspektren, d.h. mit Licht in unterschiedlichem Wellenlängenbereichen bebildert. Dazu kann die Schablonenschicht aus mehreren Emulsionsschichten unterschiedlicher Empfindlichkeit aufgebaut sein. Auch kann die Schablonenschicht mit speziell ausgestalteten Masken, z.B. einer Filmmaske mit lokal unterschiedlicher Lichtdurchlässigkeit, bebildert werden.In an advantageous embodiment of the screen printing stencil according to the invention, a respective passage may have differently configured channel walls. So be oblique and / or stepped and / or convex and / or concave channel walls considered advantageous.
In a particularly advantageous and therefore preferred embodiment, the fabric layer of the screen printing stencil is designed as a woven steel fabric, in particular made of stainless steel. Alternatively, polyester fabrics can be used. It is also advantageous if the fabric layer is provided with a stabilizing metal coating, the metal coating in particular containing nickel. The fabric layer may possibly be calendered. Also a very strong calendering up to max. The simple wire thickness can be advantageous. Advantageously, the stencil layer is formed by a polymer, in particular by a photopolymer, ie a light-sensitive polymer, which allows a particularly simple imaging.
The invention also relates to a method for imaging a screen-printing stencil having at least one sieve-like fabric layer as the support structure and an imageable stencil layer, wherein the stencil layer is provided with apertures during imaging, which can be referred to as color channels to a color flow from a doctor blade side on a printing material side of the screen printing stencil to enable. According to the invention, a respective passage is formed such that it has a smaller opening on the printing material side than on the doctor side of the screen printing stencil. According to the invention, the width 1 of the opening on the doctor blade side is greater than the diameter (D) of a fabric strand (1> D) and the width d of the opening on the printing material side corresponds at most to the diameter (D) of a woven strand (d ≦ D). This results in the advantages described above.
In an advantageous embodiment of the method according to the invention, the stencil layer is imaged by means of laser. The laser is driven in such a way that it has different penetration depths, that is, it acts differently far below the surface of the stencil layer. By laser imaging involves the two alternatives curing by polymerization and Webrennen the photo layer (similar to laser cutting). Alternatively, the template layer can be imaged in classical exposure by using multiple film masks with adjusted exposure time and intensity. In an alternative method variant, the stencil layer is imaged with different light spectra, ie with light in different wavelength ranges. For this, the stencil layer can consist of several Be constructed emulsion layers of different sensitivity. The stencil layer can also be imaged with specially designed masks, for example a film mask with locally different light transmission.

Die beschriebene Erfindung und die beschriebenen vorteilhaften Weiterbildungen der Erfindung, nämlich die unterschiedlich ausgestalteten Kanalwände, stellen auch in Kombination miteinander vorteilhafte Weiterbildungen der Erfindung dar.
Auch für die Filtration werden hochfeine Durchtritte benötigt. So können für Polymermembranen in vorteilhafter Weise wie obenstehend beschriebene Siebschablonen verwendet werden. Deren Verwendung erleichtert das Reinigen und trägt zu einem geringeren Anhaften beim Rückspülen bei.
Hinsichtlich weiterer Vorteile und in konstruktiver und funktioneller Hinsicht vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Figuren verwiesen.The described invention and the described advantageous developments of the invention, namely the differently designed channel walls, are also in combination with each other advantageous developments of the invention.
Also for the filtration extremely fine passages are needed. Thus, for polymeric membranes advantageously as described above Siebschablonen be used. Their use facilitates cleaning and contributes to less sticking during backwashing.
With regard to further advantages and constructive and functional advantageous embodiments of the invention, reference is made to the dependent claims and the description of exemplary embodiments with reference to the accompanying figures.

Ausführungsbeispielembodiment

Die Erfindung soll an Hand beigefügter Figuren noch näher erläutert werden. Einander entsprechende Elemente und Bauteile sind in den Figuren mit gleichen Bezugszeichen versehen. Zugunsten einer besseren Übersichtlichkeit der Figuren wurde auf eine maßstabsgetreue Darstellung verzichtet.The invention will be explained in more detail with reference to attached figures. Corresponding elements and components are provided in the figures with the same reference numerals. In favor of a better clarity of the figures was waived a true to scale representation.

Es zeigen in schematischer Darstellung

Figur 1:
eine erfindungsgemäße Siebdruckschablone in einer Schnittdarstellung
Figur 2:
eine Siebdruckschablone in einer Schnittdarstellung gemäß dem Stand der Technik
Figur 3a-f:
verschiedene Ausführungen von erfindungsgemäßen Siebdruckschablonen
Figur 4:
eine Draufsicht auf einen Farbkanal
Figur 5a, b:
Draufsichten von beiden Seiten auf eine Siebdruckschablone mit punktförmigem Durchlass
Figur 6:
eine Siebdruckschablone in einer Ansicht als Übersichtsdarstellung
Figur 7:
die Anwendung der Siebdruckschablone als Rotationssiebdrucksieb
It show in a schematic representation
FIG. 1:
a screen printing stencil according to the invention in a sectional view
FIG. 2:
a screen printing stencil in a sectional view according to the prior art
FIGS. 3a-f:
various embodiments of screen printing stencils according to the invention
FIG. 4:
a plan view of a color channel
FIG. 5a, b:
Top views from both sides on a screen printing stencil with point-shaped passage
FIG. 6:
a screen printing stencil in a view as an overview
FIG. 7:
the application of the screen printing stencil as a rotary screen

Figur 6 zeigt ein flächiges Siebmaterial 10 mit einer Gewebelage 1 gemäß dem Stand der Technik, welches einseitig mit einer Foto-Polymerbeschichtung 2 versehen ist (Direktschablone). In einer nicht dargestellten alternativen Ausführungsform kann eine bereits bebilderte Folie auf die Siebstruktur 10 aufgebracht werden (Indirektschablone). Das vernickelte flächige Siebmaterial 10 ist dabei aus einem Gewebe 1 aufgebaut. Dabei sind verschiedene Gewebeformen möglich, welche auch als Gewebetyp bezeichnet werden. FIG. 6 shows a flat screen material 10 with a fabric layer 1 according to the prior art, which is provided on one side with a photo-polymer coating 2 (direct template). In an alternative embodiment, not shown, an already imaged film can be applied to the screen structure 10 (indirect template). The nickel-plated planar sieve material 10 is constructed from a fabric 1. Different tissue forms are possible, which are also referred to as tissue type.

Derartige Siebmaterialien 10 als auch die erfindungsgemäßen Siebdruckschablonen 10 finden Verwendung im Rotationssiebdruck: In Figur 7 ist ein Sieb 100 mit einem flächigen Siebmaterial 10 in zylindrischer Hülsenform für den rotativen Siebdruck angedeutet. Das Siebmaterial 10 wird dabei durch nicht näher bezeichnete Endstücke in seiner zylindrischen Form gehalten. Im Innern des Siebes 100 befindet sich ein nicht sichtbares Rakel eines Siebdruckwerks, um Farbe durch das Siebmaterial 10 zu pressen. Die Ausrichtung des Rakels kann parallel zur Rotationsachse des Siebes 100 sein. Die Umfangsrichtung U des Siebes 100, in welche dieses beim Drucken rotiert wird, ist dabei mit einem Doppelpfeil angedeutet.Such screen materials 10 as well as the screen printing stencils 10 according to the invention are used in rotary screen printing: In FIG. 7 is a sieve 100 with a flat screen material 10 in cylindrical sleeve shape for the rotary screen printing indicated. The screen material 10 is held by unspecified tails in its cylindrical shape. Inside the screen 100 is an invisible squeegee of a screen printing unit to press paint through the screen material 10. The orientation of the doctor blade may be parallel to the axis of rotation of the wire 100. The circumferential direction U of the screen 100, in which this is rotated during printing, is indicated by a double arrow.

In Figur 1 ist ein Ausschnitt einer erfindungsgemäßen Siebdruckschablone 10 in einem Querschnitt dargestellt. Die Siebdruckschablone 10 besteht aus einer Gewebelage 1, welche zumindest teilweise in einer Schablonenschicht 2 eingebettet ist. Die Gewebelage 1 ist dabei kalandriert. Genauso können gemäß der Erfindung unkalandrierte oder stärker kalandrierte Gewebelagen 1 verwendet werden. Bei der Schablonenschicht 2 kann es sich um ein Fotopolymer handeln. Die Gewebelage 1 wird gebildet durch eine Vielzahl von miteinander verwobenen Gewebesträngen 6. In Figur 1 sind drei Gewebestränge 6 im Querschnitt zu erkennen als auch zwei rechtwinklig dazu verlaufende Gewebestränge 6 in einer Ansicht.In FIG. 1 a section of a screen printing stencil 10 according to the invention is shown in a cross section. The screen printing stencil 10 consists of a fabric layer 1, which is at least partially embedded in a stencil layer 2. The fabric layer 1 is calendered. Likewise, uncalendered or more calendered fabric layers 1 can be used according to the invention. The stencil layer 2 may be a photopolymer. The fabric layer 1 is formed by a multiplicity of interwoven fabric strands 6 FIG. 1 There are three fabric strands 6 in the Cross-section to recognize as well as two perpendicular thereto extending tissue strands 6 in a view.

Die Siebdruckschablone 10 besitzt eine Bedruckstoffseite 4 und eine Rakelseite 5. Auf der Rakelseite 5 befindet sich ein Farbvorrat, welcher mittels einer nicht dargestellten Rakel auf die Rakelseite 5 der Siebdruckschablone 10 aufgebracht wird. Durch Durchlässe 3, welche Farbkanäle bilden, gelangt Farbe 30 auf die Bedruckstoffseite 4 der Siebdruckschablone 10 und gelangt dort in Kontakt mit einem Bedruckstoff 20. Um einen Bedruckstoff 20 in hoher Qualität mit Farbe 30 bedrucken zu können, ist ein guter Farbfluss F durch die Durchlässe 3 der Siebdruckschablone 10 erforderlich. Um besonders feine Punkte und Farblinien 30 auf einen Bedruckstoff 20 aufdrucken zu können, d.h., um eine besonders kleine druckbare Linienbreite a zu realisieren, muss die bedruckstoffseitige 4 Öffnung 9 der Siebdruckschablone 10 eine geringe Breite aufweisen.The screen printing stencil 10 has a printing material side 4 and a squeegee side 5. On the doctor side 5 is an ink supply, which is applied by means of a doctor, not shown, on the doctor side 5 of the screen printing stencil 10. Through passages 3, which form color channels, ink 30 reaches the printing material side 4 of the screen printing stencil 10 and comes there into contact with a printing substrate 20. To print a substrate 20 in high quality with color 30, a good color flow F through the passages 3 of the screen printing stencil 10 required. In order to be able to print particularly fine dots and color lines 30 on a printing substrate 20, that is, in order to realize a particularly small printable line width a, the printing material-side 4 opening 9 of the screen printing stencil 10 must have a narrow width.

Dazu haben die Durchlässe 3 der Siebdruckschablone 10 die nachfolgend beschriebene Ausgestaltung: Die Öffnung 9 ist auf der Rakelseite 5 mit einer Breite 1 größer als auf der Bedruckstoffseite 4, wo die Öffnung eine Breite d aufweist. Es gilt also d < 1. Auch ist die Breite 1 der rakelseitigen Öffnung 9 größer als der Durchmesser D eines beschichteten Gewebestrangs 6. Die Breite d der bedruckstoffseitigen Öffnung ist hingegen kleiner als der Durchmesser D eines beschichteten Gewebestranges. Es gilt also 1 > D > d. Aufgrund dieser Ausgestaltung ist sichergestellt, dass der Farbfluss von Farbe 30 von der Rakelseite 5 auf die Bedruckstoffseite 4 zwischen den Kanalwänden 8 und dem Gewebestrang 6 hindurch besonders sicher und kontinuierlich erfolgen kann.For this purpose, the passages 3 of the screen printing stencil 10 have the configuration described below: The opening 9 is larger on the doctor blade side 5 with a width 1 than on the printing material side 4, where the opening has a width d. The width 1 of the squeegee-side opening 9 is therefore also greater than the diameter D of a coated fabric strand 6. The width d of the printing material-side opening, however, is smaller than the diameter D of a coated fabric strand. So there is 1> D> d. On account of this embodiment, it is ensured that the color flow of ink 30 from the doctor blade side 5 onto the printing material side 4 between the channel walls 8 and the fabric strand 6 can take place particularly reliably and continuously.

Um die Unterschiede zwischen einer erfindungsgemäßen Siebdruckschablone 10, wie in Figur 1 dargestellt, und einer Siebdruckschablone gemäß dem Stand der Technik herauszustellen, wird durch Figur 2 eine Siebdruckschablone 10 gemäß dem Stand der Technik veranschaulicht. Solche bekannten Siebdruckschablonen besitzen recht breite, über ihre Erstreckung konstant breite Durchlässe 3 als Farbkanal. Dadurch ist zwar sichergestellt, dass ein guter Farbfluss F vorliegt. Allerdings ist die druckbare Linienbreite a eingeschränkt, so dass nur relativ breite Farblinien 30 auf einen Bedruckstoff 20 aufgedruckt werden können. Die druckbare Linienbreite a ergibt sich dabei aus der bedruckstoffseitigen Breite d der Öffnung 9 des Durchlasses 3, welche in etwa der Breite 1 der rakelseitigen Öffnung 9 entspricht. Es gilt also d ≈ 1. Die Breite 1 der rakelseitigen Öffnung 9 ist dabei ein Vielfaches des Durchmessers D eines beschichteten Gewebestrangs. Es gilt also 1 >> D.To illustrate the differences between a screen printing stencil 10 according to the invention, as in FIG FIG. 1 shown, and a screen stencil according to the prior art, is by FIG. 2 illustrates a screen printing stencil 10 according to the prior art. Such known screen printing stencils have quite wide passages 3, which are constant over their extent, as a color channel. This ensures that a good color flow F is present. However, the printable line width a is limited, so that only relatively wide color lines 30 can be printed on a substrate 20. The printable line width a results from the substrate-side width d of the opening 9 of the passage 3, which corresponds approximately to the width 1 of the squeegee-side opening 9. It therefore applies d ≈ 1. The width 1 of the squeegee-side opening 9 is a multiple of the diameter D of a coated fabric strand. So 1 >> D.

Während in dem Ausführungsbeispiel der Siebdruckschablone 10 gemäß Figur 1 die Kanalwände 8 des Durchlasses 3 eine schräge Ausgestaltung aufweisen, sind in den Figuren 3a bis 3f alternative Geometrieformen der Kanalwände 8 dargestellt, welche ebenfalls als vorteilhaft erachtet werden. So sind die Kanalwände 8 in der Ausführung gemäß Figur 3a konkav ausgestaltet. In der Ausführungsvariante gemäß Figur 3b sind die Kanalwände 8 konvex ausgestaltet. In der Variante gemäß Figur 3c sind die Kanalwände 8 , wie auch in der Ausführung gemäß Figur 1, im Wesentlichen schräg ausgestaltet, besitzen jedoch im bedruckstoffseitigen Endbereich des Durchlasses 3 eine rechtwinklig zur Oberfläche der Siebdruckschablone 10 verlaufende Formgebung. Die Kanalwände 8 in der Ausgestaltung gemäß Figur 3d haben eine stufige bzw. stufenförmige Geometrie. Auch können die Kanalwände 8 mehr als die nur eine in Figur 3 dargestellte Stufe aufweisen. Wie in Figur 3e dargestellt, können die Kanalwände 8 auch die Form einer freien Formlinie aufweisen, d.h. eine recht beliebige Geometrie. Wie in Figur 3f dargestellt, ist jedoch auch die Kombination unterschiedlicher Kanalwandausgestaltungen für die beiden Kanalwände 8 denkbar. So können insbesondere die in den Figuren 1 und 3a bis 3e dargestellten Geometrievarianten miteinander kombiniert werden.While in the embodiment of the screen printing stencil 10 according to FIG. 1 the channel walls 8 of the passage 3 have an oblique configuration are in the FIGS. 3a to 3f shown alternative geometry shapes of the channel walls 8, which are also considered advantageous. Thus, the channel walls 8 in the embodiment according to FIG. 3a concave. In the embodiment according to FIG. 3b the channel walls 8 are convex. In the variant according to Figure 3c are the channel walls 8, as well as in the embodiment according to FIG. 1 , configured substantially obliquely, but have in the printing material side end portion of the passage 3 a perpendicular to the surface of the screen printing stencil 10 extending shape. The channel walls 8 in the embodiment according to 3d figure have a stepped or stepped geometry. Also, the channel walls 8 more than the only one in FIG. 3 have shown stage. As in FIG. 3e shown, the channel walls 8 may also have the shape of a free forming line, ie a fairly random geometry. As in FIG. 3f illustrated, however, the combination of different channel wall configurations for the two channel walls 8 is conceivable. In particular, those in the FIGS. 1 and 3a to 3e Geometry variants are combined with each other.

Figur 4 zeigt eine Draufsicht auf einen Durchlass 3 von der Rakelseite 5. Der Durchlass ist dabei als linienförmiger Farbkanal 3 ausgeführt, zum Drucken einer Linie.
In Figur 5 hingegen sind Draufsichten auf eine Siebdruckschablone 10 mit einem punktförmigen Durchlass 3 von beiden Seiten der Siebdruckschablone dargestellt: in Fig. 5a die bedruckstoffseitige 4 Sicht und in Fig. 5b die rakelseitige 5 Sicht. Dank punktförmiger Durchlässe 3 mit bedruckstoffseitigem Durchmesser d lassen sich feine Punkte mit einem Durchmesser a drucken. FIG. 4 shows a plan view of a passage 3 from the doctor side 5. The passage is designed as a linear color channel 3, for printing a line.
In FIG. 5 on the other hand, plan views of a screen printing stencil 10 with a punctiform passage 3 from both sides of the screen printing stencil are shown: in Fig. 5a the printing material side 4 view and in Fig. 5b the rakelseitige 5 view. Thanks to punctiform passages 3 with printing-material-side diameter d, fine dots having a diameter a can be printed.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gewebelagefabric layer
22
Schablonenschichtstencil layer
33
Durchlass als FarbkanalPassage as a color channel
44
BedruckstoffseiteBedruckstoffseite
55
Rakelseitesqueegee side
66
Gewebestrangtissue strand
77
Beschichtungcoating
88th
Kanalwandchannel wall
99
Öffnung in SchablonenschichtOpening in stencil layer
1010
Siebdruckschablonescreen printing stencil
2020
Bedruckstoffsubstrate
3030
Farbe (Farblinie, Farbpunkt)Color (color line, color point)
100100
RotationssiebdrucksiebRotationssiebdrucksieb
aa
Druckbare Linienbreite (Farblinienbreite bzw. Farbpunktdurchmesser)Printable line width (color line width or color point diameter)
dd
Breite der bedruckstoffseitigen ÖffnungWidth of the printing material side opening
11
Breite der rakelseitigen ÖffnungWidth of the squeegee-side opening
DD
Durchmesser GewebestrangDiameter tissue strand
UU
Umfangsrichtungcircumferentially
FF
Farbflusscolor flow

Claims (8)

  1. Printing screen (10) comprising at least a screen-like fabric layer (1) as a carrier structure, in particular including threads of fabric (6) arranged at an angle relative to one another, and an imaged stencil layer (2) connected to the fabric layer (1) and provided with passages (3),
    a respective passage (3) having a smaller opening (9) on the printing material side (4) of the printing screen (10) than on the squeegee side (5) of the printing screen (10) and forming a continuous channel,
    wherein the width 1 of the opening (9) on the squeegee side (5) is greater than the diameter (D) of a thread of fabric (6) (1>D) and wherein the width d of the opening (9) on the printing material side (4) at the maximum corresponds to the diameter (D) of a thread of fabric (6) (d ≤ D).
  2. Printing screen according to claim 1,
    characterized in
    that a respective passage (3) forms a line-shaped or dot-shaped ink channel.
  3. Printing screen according to any one of the preceding claims,
    characterized in
    that a respective passage (3) has at least one channel wall (8) that is angled and/or stepped and/or convex and/or concave.
  4. Printing screen according to any one of the preceding claims,
    characterized in
    that the fabric layer (1) is embodied as a steel fabric, in particular a stainless steel fabric.
  5. Printing screen according to any one of the preceding claims,
    characterized in
    that the fabric layer is provided with a metal coating (7), the metal coating in particular containing nickel.
  6. Printing screen according to any one of the preceding claims,
    characterized in
    that the stencil layer (2) is formed by a polymer, in particular a photopolymer.
  7. Method for imaging a printing screen (10) to manufacture a printing screen according to claim 1, the printing screen (10) comprising at least a screen-like fabric layer (1) as a carrier structure and an imageable stencil layer (2), the stencil layer (2) and the fabric layer (1) connected to one another and the stencil layer (2) provided with passages (3) in an imaging process to provide an ink flow (F) from a squeegee side (5) to a printing material side (4) of the printing screen (10), wherein a respective passage (3) is formed to have a smaller opening (9) on the printing material side (4) than on the squeegee side (5) of the printing screen (10), causing the width 1 of the opening (9) on the squeegee side (5) to be greater than the diameter (D) of a thread of fabric (6) (1 > D) and the width d of the opening (9) on the printing material side (4) at the maximum corresponds to the diameter (D) of a fabric thread (6) (d ≤ D).
  8. Method for imaging a printing screen according to claim 7,
    characterized in
    that the stencil layer (2) is imaged directly using a laser or by exposure to different spectrums of light or by means of a number of different photographic screens with an adapted exposure or by means of a specifically embodied photographic screen.
EP14821534.6A 2014-02-20 2014-12-11 Screen printing stencil and method for imaging it Not-in-force EP3107735B1 (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105346213B (en) * 2015-09-15 2018-01-09 赫日光电（苏州）有限公司 Composite halftone with choana and preparation method thereof
DE102015120185A1 (en) * 2015-11-20 2017-05-24 Asm Assembly Systems Gmbh & Co. Kg A method and apparatus for selecting a paste stencil for paste printing and for applying paste to a substrate using the selected paste stencil
JP6603837B1 (en) * 2018-06-14 2019-11-13 株式会社プロセス・ラボ・ミクロン Screen printing plate and manufacturing method thereof
CN112519392B (en) * 2019-09-17 2023-06-06 富来宝米可龙股份有限公司 Screen printing plate and method for manufacturing the same
CN112519394A (en) * 2020-11-19 2021-03-19 浙江硕克科技有限公司 Precise circuit printing metal plate of semiconductor electronic component

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783779A (en) * 1969-07-25 1974-01-08 Hallmark Cards Rotary screen printing cylinder
US3759800A (en) * 1971-09-27 1973-09-18 Screen Printing Systems Seamless rotary printing screen and method of making same
JPS555107B2 (en) * 1972-04-13 1980-02-04
US4242401A (en) * 1978-01-24 1980-12-30 Mitani Electronics Industry Corp. Screen-printing mask
JPS59154972A (en) * 1983-02-24 1984-09-04 Kishimoto Akira Thermal sterilization of liquid
DE3441593A1 (en) 1984-11-14 1986-05-22 Ferd. Rüesch AG, St. Gallen METHOD AND DEVICE FOR PRODUCING SCREEN PRINTING FABRICS FOR SCREEN PRINTING CYLINDERS
JPH0664344B2 (en) * 1986-06-30 1994-08-22 日立エーアイシー株式会社 Screen printing plate
JPH03215096A (en) * 1990-01-19 1991-09-20 Toppan Printing Co Ltd Screen printing plate
US5359928A (en) * 1992-03-12 1994-11-01 Amtx, Inc. Method for preparing and using a screen printing stencil having raised edges
JPH06143855A (en) * 1992-11-06 1994-05-24 Matsushita Electric Ind Co Ltd Screen printing plate and production thereof
JP3410853B2 (en) * 1994-11-21 2003-05-26 東北リコー株式会社 Stencil printer, its master and its screen
KR20010031083A (en) 1997-10-14 2001-04-16 갈루스 페르트. 뤼쉬 아게 Screen printing installation
US6089151A (en) * 1998-02-24 2000-07-18 Micron Technology, Inc. Method and stencil for extruding material on a substrate
US6410206B1 (en) * 1999-02-25 2002-06-25 Dai Nippon Printing Co., Ltd. Photosensitive resin composition, color filter, and copolymer resin useful for them
JP3648704B2 (en) * 2000-02-14 2005-05-18 タムラ化研株式会社 Active energy ray-curable composition and printed wiring board
JP3488413B2 (en) * 2000-03-02 2004-01-19 株式会社三誠商會 Printing screen plate and method of manufacturing printing screen plate
JP2002326337A (en) * 2001-04-27 2002-11-12 Matsushita Electric Ind Co Ltd Printing mask and method for forming circuit electrode using the same
US6722275B2 (en) * 2001-09-28 2004-04-20 Photo Stencil, Llc Reservoir stencil with relief areas and method of using
JP4324390B2 (en) * 2002-02-13 2009-09-02 大日本印刷株式会社 Photosensitive resin composition and screen printing plate
US7093746B2 (en) * 2002-05-17 2006-08-22 Fry's Metals, Inc. Coated stencil with reduced surface tension
US6625026B1 (en) * 2002-07-31 2003-09-23 Hewlett-Packard Development Company, Lp Heat-activated self-aligning heat sink
JP4029168B2 (en) * 2003-02-18 2008-01-09 株式会社村田製作所 Manufacturing method of electronic parts
JP2006150868A (en) * 2004-11-30 2006-06-15 Wintech:Kk Plate for rotary screen printing
JP2006327122A (en) * 2005-05-30 2006-12-07 Fuchigami Micro:Kk Screen printing plate and method for manufacturing screen printing plate
US7645564B2 (en) * 2006-03-03 2010-01-12 Haixin Yang Polymer solutions, aqueous developable thick film compositions, processes of making and electrodes formed thereof
JP2007334058A (en) * 2006-06-15 2007-12-27 Murata Mfg Co Ltd Screen printing plate and method for manufacturing the same
JP5291921B2 (en) * 2006-12-06 2013-09-18 株式会社ボンマーク Mask and mask manufacturing method
DE202008012829U1 (en) * 2008-09-26 2008-12-04 Nb Technologies Gmbh screen printing forme
GB2481079B (en) * 2009-09-21 2014-06-25 Dtg Int Gmbh Printing screens and method of fabricating the same
NL2003627C2 (en) * 2009-10-12 2011-04-13 Stork Prints Bv Screen printing.
WO2011149067A1 (en) * 2010-05-28 2011-12-01 京セラ株式会社 Printing plate and method for manufacturing solar cell element using the printing plate
EP2447292B1 (en) * 2010-10-29 2017-03-29 BellandTechnology AG Water soluble copolymer which disintegrates in water
DE102011016453A1 (en) 2011-04-08 2013-01-17 Universität Stuttgart Process for producing a screen printing form and solar cell produced therewith

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102015200770A1 (en) 2015-08-20
US20160355041A1 (en) 2016-12-08
ES2671714T3 (en) 2018-06-08
WO2015124230A1 (en) 2015-08-27
CN106061739B (en) 2018-08-03
MY178067A (en) 2020-09-30
JP2017506176A (en) 2017-03-02
US9707793B2 (en) 2017-07-18
CN106061739A (en) 2016-10-26
DK3107735T3 (en) 2018-06-14
EP3107735A1 (en) 2016-12-28
JP6188964B2 (en) 2017-08-30

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