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WO1992011095A1 - Procedes de couchage - Google Patents

Procedes de couchage Download PDF

Info

Publication number
WO1992011095A1
WO1992011095A1 PCT/EP1991/002416 EP9102416W WO9211095A1 WO 1992011095 A1 WO1992011095 A1 WO 1992011095A1 EP 9102416 W EP9102416 W EP 9102416W WO 9211095 A1 WO9211095 A1 WO 9211095A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
coating
liquid material
curtain
low viscosity
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.)
Ceased
Application number
PCT/EP1991/002416
Other languages
English (en)
Inventor
Terence Desmond Blake
Rosemary Barnes
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.)
Kodak Ltd
Eastman Kodak Co
Original Assignee
Kodak Ltd
Eastman Kodak Co
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 Kodak Ltd, Eastman Kodak Co filed Critical Kodak Ltd
Priority to EP92901417A priority Critical patent/EP0563148B1/fr
Priority to JP4501386A priority patent/JPH06503753A/ja
Priority to DE69104850T priority patent/DE69104850T2/de
Publication of WO1992011095A1 publication Critical patent/WO1992011095A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
    • B05C5/008—Slide-hopper curtain coaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • B05D1/305—Curtain coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2451/00—Type of carrier, type of coating (Multilayers)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/548—No curing step for the last layer
    • B05D7/5483—No curing step for any layer
    • B05D7/5485—No curing step for any layer the two layers being applied simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/588—No curing step for the last layer
    • B05D7/5883—No curing step for any layer
    • B05D7/5885—No curing step for any layer all layers being applied simultaneously
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G03C2001/7433—Curtain coating
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G03C2001/7462—Flowing conditions in slots prior to coating
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G03C2001/7481—Coating simultaneously multiple layers

Definitions

  • Figure 3 is similar to Figure 2, but illustrates an alternative exit slot arrangement for a low viscosity bottom layer
  • the other layers are discharged from respective slots 20, 22, 24 and 26, and are inverted in sequence from that of conventional curtain- or bead- coating.
  • the support 14 is inclined to the horizontal so that the angle of application of the curtain to the support, a, is not 0°, that is, the curtain 12 is applied at a forward application angle.
  • an exit slot arrangement is shown in which the bottom layer 16 is directly applied to the upstream side of the curtain as it leaves the hopper lip 36.
  • the bottom layer 16 is discharged from an additional slot 30.
  • This slot 30 is formed by inserting a sub-lip element 32 beneath the overhang 34 at the front of the hopper slide 28. In this case, the slot exit is positioned exactly at the hopper lip 36 as shown.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Dans le domaine du couchage par projection, on connaît l'utilisation d'une couche de fond ou d'accélération pour faciliter l'humectage d'un support en mouvement sur lequel on est en train de déposer un matériau liquide comprenant une ou plusieurs couches. Bien que l'on puisse atteindre des vitesses élevées de couchage, il est difficile de faire couler sur le glissoir incliné d'une trémie une couche de fond à faible viscosité et à débit relativement peu élevé sans provoquer la formation de vagues ou d'autres manifestations d'un écoulement instable. On a mis au point un procédé amélioré de couchage par projection selon lequel on utilise une couche de fond à faible viscosité permettant le dépôt simultané de liquides à viscosité élevée sur un support en mouvement en évitant les problèmes associés aux procédés connus de couchage par projection.
PCT/EP1991/002416 1990-12-20 1991-12-16 Procedes de couchage Ceased WO1992011095A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP92901417A EP0563148B1 (fr) 1990-12-20 1991-12-16 Procedes de couchage
JP4501386A JPH06503753A (ja) 1990-12-20 1991-12-16 コーティング方法
DE69104850T DE69104850T2 (de) 1990-12-20 1991-12-16 Beschichtungsverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909027675A GB9027675D0 (en) 1990-12-20 1990-12-20 Coating processes
GB9027675.9 1990-12-20

Publications (1)

Publication Number Publication Date
WO1992011095A1 true WO1992011095A1 (fr) 1992-07-09

Family

ID=10687354

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/002416 Ceased WO1992011095A1 (fr) 1990-12-20 1991-12-16 Procedes de couchage

Country Status (5)

Country Link
EP (1) EP0563148B1 (fr)
JP (1) JPH06503753A (fr)
DE (1) DE69104850T2 (fr)
GB (1) GB9027675D0 (fr)
WO (1) WO1992011095A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024088A1 (fr) * 1995-02-02 1996-08-08 Minnesota Mining And Manufacturing Company Procede et dispositif d'application de bandes minces de revetement liquide
EP0743555A1 (fr) * 1995-05-19 1996-11-20 Kodak-Pathe Procédé et appareil pour améliorer l'uniformité d'un rideau liquide dans un système d'enduction au rideau
US6368675B1 (en) 2000-04-06 2002-04-09 3M Innovative Properties Company Electrostatically assisted coating method and apparatus with focused electrode field
US6475572B2 (en) 2000-04-06 2002-11-05 3M Innovative Properties Company Electrostatically assisted coating method with focused web-borne charges
US7364774B2 (en) * 2002-04-12 2008-04-29 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
US7473333B2 (en) 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
WO2009115550A1 (fr) * 2008-03-18 2009-09-24 Polytype Converting S.A. Revêtement au rideau avec réduction de la rétroflexion
WO2009120570A1 (fr) * 2008-03-26 2009-10-01 3M Innovative Properties Company Procédés de revêtement par glissement de deux ou plusieurs fluides
WO2009120647A1 (fr) * 2008-03-26 2009-10-01 3M Innovative Properties Company Procédés de revêtement par glissement de deux ou plusieurs fluides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6579569B2 (en) * 2001-02-28 2003-06-17 Eastman Kodak Company Slide bead coating with a low viscosity carrier layer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569893A (en) * 1983-08-29 1986-02-11 Canon Kabushiki Kaisha Amorphous matrix of silicon and germanium having controlled conductivity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569893A (en) * 1983-08-29 1986-02-11 Canon Kabushiki Kaisha Amorphous matrix of silicon and germanium having controlled conductivity

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024088A1 (fr) * 1995-02-02 1996-08-08 Minnesota Mining And Manufacturing Company Procede et dispositif d'application de bandes minces de revetement liquide
US5733608A (en) * 1995-02-02 1998-03-31 Minnesota Mining And Manufacturing Company Method and apparatus for applying thin fluid coating stripes
EP0743555A1 (fr) * 1995-05-19 1996-11-20 Kodak-Pathe Procédé et appareil pour améliorer l'uniformité d'un rideau liquide dans un système d'enduction au rideau
FR2734178A1 (fr) * 1995-05-19 1996-11-22 Kodak Pathe Procede et appareil pour ameliorer l'uniformite d'un rideau liquide dans un systeme d'enduction au rideau
US5725666A (en) * 1995-05-19 1998-03-10 Eastman Kodak Company Apparatus for improving the uniformity of a liquid curtain in a curtain coating system
US6475572B2 (en) 2000-04-06 2002-11-05 3M Innovative Properties Company Electrostatically assisted coating method with focused web-borne charges
US6368675B1 (en) 2000-04-06 2002-04-09 3M Innovative Properties Company Electrostatically assisted coating method and apparatus with focused electrode field
US6666918B2 (en) 2000-04-06 2003-12-23 3M Innovative Properties Company Electrostatically assisted coating apparatus with focused web charge field
US6716286B2 (en) 2000-04-06 2004-04-06 3M Innovative Properties Company Electrostatically assisted coating method and apparatus with focused electrode field
US7364774B2 (en) * 2002-04-12 2008-04-29 Dow Global Technologies Inc. Method of producing a multilayer coated substrate having improved barrier properties
US7473333B2 (en) 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
WO2009115550A1 (fr) * 2008-03-18 2009-09-24 Polytype Converting S.A. Revêtement au rideau avec réduction de la rétroflexion
WO2009120570A1 (fr) * 2008-03-26 2009-10-01 3M Innovative Properties Company Procédés de revêtement par glissement de deux ou plusieurs fluides
WO2009120647A1 (fr) * 2008-03-26 2009-10-01 3M Innovative Properties Company Procédés de revêtement par glissement de deux ou plusieurs fluides

Also Published As

Publication number Publication date
DE69104850T2 (de) 1995-05-24
DE69104850D1 (de) 1994-12-01
JPH06503753A (ja) 1994-04-28
EP0563148A1 (fr) 1993-10-06
EP0563148B1 (fr) 1994-10-26
GB9027675D0 (en) 1991-02-13

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