EP2209632A1 - Écran pour la sérigraphie industrielle - Google Patents

Écran pour la sérigraphie industrielle

Info

Publication number
EP2209632A1
EP2209632A1 EP08847932A EP08847932A EP2209632A1 EP 2209632 A1 EP2209632 A1 EP 2209632A1 EP 08847932 A EP08847932 A EP 08847932A EP 08847932 A EP08847932 A EP 08847932A EP 2209632 A1 EP2209632 A1 EP 2209632A1
Authority
EP
European Patent Office
Prior art keywords
screen
substrate
solar cell
edge strip
printing
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Withdrawn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
EP08847932A
Other languages
German (de)
English (en)
Inventor
Joachim Hrabi
Ralf Weber
Ranko Rajic
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.)
KOENEN GmbH
Original Assignee
KOENEN 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 KOENEN GmbH filed Critical KOENEN GmbH
Publication of EP2209632A1 publication Critical patent/EP2209632A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
    • H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
    • H05K3/1225—Screens or stencils; Holders therefor
    • 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
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/10—Screen printing machines characterised by their constructional features
    • B41P2215/12—Screens

Definitions

  • the invention relates to a screen for technical screen printing, in particular for solar cell printing, with a dimensionally stable rectangular frame made of light metal or steel struts and a screen fabric clamped in the frame of steel wires or high-strength plastic threads.
  • Precision sieves for technical screen printing ie for use in thick film technology, polymer paste printing, solar cell printing and other applications, regularly include a screen printing frame which can be designed as a light metal cast frame, as a light metal profi frame or as a stainless steel profile frame in different sizes.
  • a fine-mesh screen printing fabric is clamped on all sides, which can be designed as a stainless steel wire and / or polyester fabric.
  • the screen is brought into contact or pressure contact with the solar cell for carrying out the screen printing process.
  • the squeegee pressure and the set down stop result in a mechanical deformation of the sieve fabric and possibly also of the sieve coating.
  • the solar cells are standardized in size and have sharp edges, after a corresponding number of printing operations not only the screen coating, but possibly also the Underlying screen mesh damaged by the edge pressure.
  • the screen fabric can tear in these narrow and highly stressed areas, possibly up to the frame edge, so that the then running paste can contaminate the printing table and other components of the printing press, resulting in costly downtime of the entire printing system, produces waste to solar cells and consuming cleaning requires.
  • the object of the invention is to provide a precision screen for technical screen printing, in particular for the manufacture of solar cells, which avoids damage to the screen fabric or the structured metal template used instead in the region of the marginal edges of these substrates even when printing a plurality of equal sharp-edged substrates.
  • the mesh fabric or the metal template has a resistant edge strip in the region of the edges of the substrates or solar cells, which covers the edges of the substrates or solar cells during the printing process.
  • the CAD layout is supplemented by an edge strip in the region of the substrate or solar cell edges.
  • the position of this edge strip depends on the shape and size of the respective substrate.
  • the edge strip has a sufficient width, so that the substrate edges are covered in a certain strip area.
  • the width of the edge strip is adapted to the shape and size of the respective substrate, so that the tolerance of the different outer substrate mass is compensated.
  • the preselected edge strip is transferred to the screen cloth.
  • the now open on the screen area is then filled with a resistant material that fills the mesh of the mesh and results in a reinforcing strip that extends in the area of the subsequently processed solar cell edge.
  • the edge strip should have a certain thickness so that pressure contact of the fabric with the sharp end edge of the substrate is avoided.
  • this reinforcing marginal strip can be selected according to the characteristics of the substrates to be printed and also the nature and properties of the respective screen fabrics.
  • the desired improved durability of the screen fabrics is achieved in various substrates, wherein the width of the strip can be minimally selected by the edge of the active part of the printed structure of the respective substrate.
  • the maximum width of the edge strip can reach up to the frame inside edge.
  • edge strip which is effective as edge reinforcement can be applied to the screen fabric or incorporated into its mesh on only one side of the substrate, on several or even on all sides of the respective substrate.
  • the thickness of the edge reinforcement depends largely on the different materials and the size of the mechanical stress.
  • Single-component or multi-component photoemulsions, photopolymers, adhesives, lacquers and pastes with metal or ceramic constituents can be used as materials for the edge strips.
  • Other materials include tapes, metal strips, self-adhesive films or the so-called hot glue.
  • the technical concept of the invention is also applicable when using structured metal stencils instead of the mesh fabrics.
  • the metal templates in the edge region of the respective substrate e.g. a solar cell substrate, a structured edge, which is provided with a firmly adhering and tear-resistant reinforcing material.
  • the structuring of the predetermined template areas can be done by etching, laser ablation and / or electrochemical, wherein structures in the thin stencil sheet in the form of gradations, depressions, openings, recesses can be formed.
  • Fig. 2 is an enlarged schematic sectional view of a screen fabric with a solar cell substrate and the edge strip according to the invention.
  • the precision screen shown in Fig. 1 is designed for printing on solar cells and includes a dimensionally stable rectangular frame 1 of longitudinal and transverse square profile struts 2, 3, 4. At the bottom of the profile struts a screen fabric 5 is permanently attached, made of fine stainless steel wires or made of dimensionally stable possibly metallized polyester fabric.
  • the tension-resistant anchoring of the sieve fabric 5 on the profile struts can be done by gluing, clamping, welding or other suitable manner.
  • the screen fabric 5 is filled with an emulsion, except for a middle panel 6 which contains a printed image.
  • the size and shape of the field 6 corresponds to that of a standardized solar cell substrate.
  • a solar cell substrate 7 to be printed is arranged directly below the field 6 of the screen fabric 5 and fixed by known means (not shown) in the predetermined position. The size of the substrate 7 is larger than the field 6.
  • an edge strip 8 is provided on and / or in the fabric material, which causes a reinforcement and consolidation of the fabric material and the formation and dissemination of Prevents tissue cracks.
  • the crack formed runs only to a maximum extent up to the edge reinforcement of the screen mesh 5 formed by the edge strip 8.
  • the paste only soils the printing table and not the printing table. Complete printing machine, which can minimize downtime of the plant.
  • a suitably structured metal template is used instead of a mesh fabric as the active pressure element.
  • the preferably consisting of thin stainless steel sheet metal template is subject to high mechanical stresses in a narrow edge region surrounding the pressure field by the edge pressure of the solar cell substrate during the repeated printing operations.
  • the metal template should be contoured at least in this edge region, i. Have heels, steps, cutouts, depressions, etc., which have been produced by machining, chemical, electrochemical or by laser ablation.

Abstract

L'invention concerne un écran de précision pour la sérigraphie industrielle, en particulier pour l'impression de cellules solaires, comprenant un cadre (1) indéformable constitué de montants (2-4) en métal léger ou en acier et un tissu d'écran (5) tendu sur ce cadre (1), ce tissu étant constitué de fils de plastique à haute résistance ou de fils d'acier. L'objectif de l'invention est d'accroître la résistance à la rupture de cet écran dans des zones particulières. À cet effet, le tissu d'écran (5) présente dans la région des bords du substrat ou de la cellule solaire une bande périphérique (8) résistante qui recouvre les bords du substrat ou de la cellule solaire (7) pendant l'impression.
EP08847932A 2007-11-05 2008-11-04 Écran pour la sérigraphie industrielle Withdrawn EP2209632A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710052679 DE102007052679B4 (de) 2007-11-05 2007-11-05 Sieb für den technischen Siebdruck
PCT/DE2008/001804 WO2009059584A1 (fr) 2007-11-05 2008-11-04 Écran pour la sérigraphie industrielle

Publications (1)

Publication Number Publication Date
EP2209632A1 true EP2209632A1 (fr) 2010-07-28

Family

ID=40394265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08847932A Withdrawn EP2209632A1 (fr) 2007-11-05 2008-11-04 Écran pour la sérigraphie industrielle

Country Status (3)

Country Link
EP (1) EP2209632A1 (fr)
DE (1) DE102007052679B4 (fr)
WO (1) WO2009059584A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011003287A1 (de) 2011-01-27 2012-08-02 Christian Koenen Gmbh Druckschablone zum Aufbringen eines Druckmusters auf ein Substrat und Verfahren zum Herstellen einer Druckschablone
FR2977189B1 (fr) * 2011-07-01 2014-11-28 Commissariat Energie Atomique Systeme d'impression serigraphique pour cellule photovoltaique
DE102011081837B4 (de) 2011-08-30 2021-08-05 Christian Koenen Gmbh Druckschablone für den technischen Druck
DE102011082240B4 (de) 2011-09-07 2021-08-26 Koenen Gmbh Drucksieb für den technischen Siebdruck
DE102015219964A1 (de) 2015-10-14 2017-04-20 Koenen Gmbh Druckvorrichtung zum Aufbringen eines Druckmusters und Verfahren zum Herstellen einer solchen Druckvorrichtung
JP7246677B2 (ja) * 2018-09-07 2023-03-28 ミタニマイクロニクス株式会社 スクリーンマスク、スクリーン印刷装置、及び印刷物の製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205541A1 (de) * 1982-02-17 1983-08-25 Elmar Dr. 8000 München Messerschmitt Vorrichtung zur oertlichen passereinstellung von siebdruckformtraegern
DE8902164U1 (fr) * 1989-02-23 1989-08-31 Messerschmitt, Elmar, Dr., 8000 Muenchen, De
DE4018454A1 (de) * 1990-06-08 1991-12-12 Reinhard Bornemann Siebdruckrahmen
JPH07309077A (ja) * 1994-05-17 1995-11-28 Tani Denki Kogyo Kk 印刷用スクリーンと該スクリーンを用いた印刷方法
DE29708329U1 (de) * 1997-05-09 1997-09-04 Becker Reiner Siebdruckschablone für pastöse Druckmedien
DE20321155U1 (de) * 2003-05-23 2006-04-27 Prießnitz, Walter, Dipl.-Ing. (FH) Dipl.-Wirtsch.-Ing. (FH), Llissa de Vall Abdeckschablone und Abdeckschabloneneinheit
DE202005004664U1 (de) * 2005-03-22 2005-05-25 Koenen Gmbh Sieb für den technischen Siebdruck
EP1955863B1 (fr) * 2005-11-28 2013-06-26 Mitsubishi Electric Corporation Masque d impression
WO2007083606A1 (fr) * 2006-01-23 2007-07-26 Sharp Kabushiki Kaisha Masque d'impression et procede de fabrication de cellules solaires l'utilisant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009059584A1 *

Also Published As

Publication number Publication date
DE102007052679A1 (de) 2009-05-07
DE102007052679B4 (de) 2014-12-24
WO2009059584A1 (fr) 2009-05-14

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