EP0285217A1 - Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat - Google Patents

Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat Download PDF

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Publication number
EP0285217A1
EP0285217A1 EP88200558A EP88200558A EP0285217A1 EP 0285217 A1 EP0285217 A1 EP 0285217A1 EP 88200558 A EP88200558 A EP 88200558A EP 88200558 A EP88200558 A EP 88200558A EP 0285217 A1 EP0285217 A1 EP 0285217A1
Authority
EP
European Patent Office
Prior art keywords
medium
slit
substrate
distributing
coating
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.)
Granted
Application number
EP88200558A
Other languages
English (en)
French (fr)
Other versions
EP0285217B1 (de
Inventor
Cornelis Jan Blaak
Ronald Melchior Wens
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.)
Stork Brabant BV
Original Assignee
Stork Brabant BV
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 Stork Brabant BV filed Critical Stork Brabant BV
Priority to AT88200558T priority Critical patent/ATE68412T1/de
Publication of EP0285217A1 publication Critical patent/EP0285217A1/de
Application granted granted Critical
Publication of EP0285217B1 publication Critical patent/EP0285217B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/44—Squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors

Definitions

  • the invention relates to a device for uniformly distri­buting a viscous medium in the width direction of a web-like substrate moving predominantly perpendicularly to the device, at least comprising: medium supply means; at least one medium-distributing space and an outflow slit adjoining the distributing space.
  • - Slit length this is the dimension of the outflow slit measured along the length of the medium-distributing device.
  • - Slit wall height this is the dimension, viewed in the flow direction of the medium, of the walls delimiting the outflow slit with the smallest dimension in a certain position along the length of the slit.
  • - Slit width this is the distance between the walls delimiting the outflow slit in a certain position along the length of the slit.
  • the device has a rod-shaped exterior and the central axis of said device is generally oriented predominantly perpendicular to the direction of movement of the substrate, to which the medium is to be applied.
  • the device described comprises two outflow slits and is intended for uniformly distributing the medium in the width direction of said moving substrate; yet, such a uniform distribution of medium in the width direction of the substrate is not completely achieved in many cases.
  • Slit wall height and slit width will normally be constant over the length of the slit.
  • one or more of the sliding pieces used can very advantageously be provided with lateral bulkheads extending to the upstream side of the substrate and oriented perpendicular to the substrate.
  • the medium-distributing device is very advantageously used in cases in which a foam-­like medium has to be applied to a moving substrate using a rotary screen printing stencil, known per se, the medium discharge opening of the device resting against the inner wall of said stencil.
  • a rotary screen printing stencil of this type may be an unpatterned stencil for those cases in which the foam is to be applied in an even coating layer to a substrate, for example a textile web.
  • the stencil used may also be provided with a pattern for the case that the foam is to be applied so as to form a pattern.
  • each viscous medium can successfully be processed using a distributing device according to the invention.
  • Figure 1 shows a distributing device according to the present state of the art 1 composed of a body 2 with medium-­distributing spaces 3 and 4, slit-shaped outflow surfaces 5 and 6, as well as a conventional medium-collecting space 7 and a medium discharge opening 8. Adjustment of the dimen­sion of the slit-shaped outflow surface 5 and 6 is achieved by means of adjustable strips 9 and 10.
  • the medium-distributing device 1 is located at the inner side of a stencil 11, the medium discharge opening 8 being in contact with the inner wall of said stencil 11. The discharged medium passes through the perforations in the stencil and in this way arrives at the surface of the moving substrate 12.
  • Figure 2A and 2B show a distributing devices according to the invention, according to a first embodiment in which the device 20 with a body 21 comprises distributing spaces 22 and 23.
  • the medium can flow into slit-shaped spaces 28 and 29 in the downstream direction, these spaces ending in outflow strips 24 and 25.
  • the slits are formed by plates 34 and 35 which are fixed by spacers and fastening means 30 and 31, respectively, on a plate, which in this case is arranged centrally, extending over the length of the distributing device.
  • the plates 34 and 35 are in tight contact with the inner wall of the device 20 on one longitudinal side.
  • the slit wall height is 45 mm, while the slit width is 0.5 mm, the quotient between the two parame­ters therefore being 90.
  • additional adjustment may take place by either varying, while maintai­ning a ratio of at least 25 between slit wall height and slit width, the slit width according to a particular pattern over the length of the device, with the slit wall height being fixed, or varying the slit wall height according to a particular pattern, with the slit width being fixed, as mentioned before.
  • Figure 3 shows another embodiment of the device; the device 40 comprises medium-distributing spaces 44 and 45, a slit-shaped space 46 of large length, the medium flowing from distributing space 42 in the direction shown by arrow 44 to space 43 and from there, as shown by arrow 45, arri­ving in the slit-shaped space 46. 47 indicates a spacer intended for maintaining the width of the slit-shaped space at the correctly adjusted value.
  • Figure 5 shows the situation in which a substrate 72 is passed over a roll 71, a doctor blade 74 being arranged at short angular distance in front of the perpendicular plane through their axis of the roll.
  • a medium-distributing device 60 is arranged with distributing spaces 63 and 64 to which medium supply lines 61 and 62 connect and in which the distributing spaces 63 and 64 are arranged, as is shown in Figure 4 described above; the slits formed connect to a collecting space 67 which ends in medium discharge opening 75.
  • a sliding piece 68 to which a lateral partition 70 is attached, is received in the collecting space.
  • connection between the rod-­ shaped section 68 and the lateral partition 70 is formed by a strip-shaped part received in the collecting space 67.
  • Figure 6 shows two graphs in which the amount, in grams, of medium, for example foam medium, applied per minute is given in the vertical direction and the location along the longitudinal direction of the distributing device is given in the horizontal direction.
  • Figure 6A shows the result for a device according to the present state of the art, incorporating two slits complementing each other, while Figure 6B shows the results obtaining using a device accor­ding to the invention. It is evident in Figure 6A that the application achieved is not uniform; on the other hand, it can be seen in Figure 6B that an extremely uniform applica­tion across the longitudinal direction of the device is achieved by means of a distributing device according to the invention.
  • the medium outflow surface will in many cases be followed by a medium collecting space in which a slit-shaped medium discharge opening is located.
  • a medium collecting space is not necessary, however, in every case, said medium discharge opening can in certain cases be formed by the medium outflow surface, in other words the outflow slit of the slit-shaped space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Screen Printers (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP88200558A 1987-03-31 1988-03-24 Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat Expired - Lifetime EP0285217B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88200558T ATE68412T1 (de) 1987-03-31 1988-03-24 Einrichtung zum verteilen eines mediums auf einem substrat, verfahren zum beschichten des substrats mit dem medium, mittels dieser einrichtung beschichtetes substrat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700754 1987-03-31
NL8700754A NL8700754A (nl) 1987-03-31 1987-03-31 Inrichting voor het verdelen van een medium op een substraat; werkwijze voor het met een medium bekleden van een substraat en met behulp van de inrichting bekleed substraat.

Publications (2)

Publication Number Publication Date
EP0285217A1 true EP0285217A1 (de) 1988-10-05
EP0285217B1 EP0285217B1 (de) 1991-10-16

Family

ID=19849787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200558A Expired - Lifetime EP0285217B1 (de) 1987-03-31 1988-03-24 Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat

Country Status (7)

Country Link
EP (1) EP0285217B1 (de)
JP (1) JPS63270575A (de)
AT (1) ATE68412T1 (de)
DE (1) DE3865483D1 (de)
ES (1) ES2027371T3 (de)
IN (1) IN170987B (de)
NL (1) NL8700754A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392625A1 (de) * 1989-04-12 1990-10-17 Stork X-Cel B.V. Vorrichtung für Schön- und Wiederbeschichtung und Verfahren zum Beschichten einer Materialbahn
NL1005308C2 (nl) * 1997-02-18 1998-08-20 Stork Brabant Bv Rakel met een vast dragend deel.
US6286422B1 (en) * 1994-12-27 2001-09-11 Visteon Global Tech., Inc. Method and apparatus for dispensing viscous material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008025927A1 (de) * 2008-05-29 2009-12-24 Zyrus Beteiligungsgesellschaft Mbh & Co. Patente I Kg Rotationsdruckmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155034A (en) * 1961-11-01 1964-11-03 Rineglas Inc Silk screen printing press
DE2450309A1 (de) * 1974-10-23 1976-04-29 Mitter & Co Vorrichtung zur begrenzung des farbtuempels vor einer im inneren einer siebdruckschablone angeordneten auftragsrolle
DE3200171A1 (de) * 1982-01-07 1983-07-14 Mitter, Mathias, 4815 Schloss Holte Vorrichtung zum auftragen von fluessigen, pastoesen oder verschaeumten medien auf eine ware, vorzugsweise mittels einer schlitzrakel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547306A (en) * 1977-06-20 1979-01-20 Sony Corp Optical video disc reproducer
NL8201505A (nl) * 1982-04-08 1983-11-01 Stork Brabant Bv Verdeelsysteem voor een visqueuze substantie.
JPS626968A (ja) * 1985-07-01 1987-01-13 株式会社　小南鋳造鉄工所 毛布等のピリング毛玉除去方法並びにその装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155034A (en) * 1961-11-01 1964-11-03 Rineglas Inc Silk screen printing press
DE2450309A1 (de) * 1974-10-23 1976-04-29 Mitter & Co Vorrichtung zur begrenzung des farbtuempels vor einer im inneren einer siebdruckschablone angeordneten auftragsrolle
DE3200171A1 (de) * 1982-01-07 1983-07-14 Mitter, Mathias, 4815 Schloss Holte Vorrichtung zum auftragen von fluessigen, pastoesen oder verschaeumten medien auf eine ware, vorzugsweise mittels einer schlitzrakel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392625A1 (de) * 1989-04-12 1990-10-17 Stork X-Cel B.V. Vorrichtung für Schön- und Wiederbeschichtung und Verfahren zum Beschichten einer Materialbahn
US6286422B1 (en) * 1994-12-27 2001-09-11 Visteon Global Tech., Inc. Method and apparatus for dispensing viscous material
NL1005308C2 (nl) * 1997-02-18 1998-08-20 Stork Brabant Bv Rakel met een vast dragend deel.
EP0860275A1 (de) * 1997-02-18 1998-08-26 Stork Brabant B.V. Rakel mit festem Trägerteil
US6101936A (en) * 1997-02-18 2000-08-15 Stork Brabant B.V. Squeegee with a fixed supporting part

Also Published As

Publication number Publication date
JPH0567344B2 (de) 1993-09-24
IN170987B (de) 1992-06-27
ES2027371T3 (es) 1992-06-01
EP0285217B1 (de) 1991-10-16
NL8700754A (nl) 1988-10-17
ATE68412T1 (de) 1991-11-15
JPS63270575A (ja) 1988-11-08
DE3865483D1 (de) 1991-11-21

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