GB1388245A - Cassade coater - Google Patents

Cassade coater

Info

Publication number
GB1388245A
GB1388245A GB3578473A GB3578473A GB1388245A GB 1388245 A GB1388245 A GB 1388245A GB 3578473 A GB3578473 A GB 3578473A GB 3578473 A GB3578473 A GB 3578473A GB 1388245 A GB1388245 A GB 1388245A
Authority
GB
United Kingdom
Prior art keywords
gap
pipe
liquid
sectional area
pressure
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.)
Expired
Application number
GB3578473A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1388245A publication Critical patent/GB1388245A/en
Expired 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
    • 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

Landscapes

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

Abstract

1388245 Coating webs AGFA-GEVAERT AG 27 July 1973 [3 Aug 1972] 35784/73 Heading D1L A cascade coater for applying liquid to the surface of a travelling sheet 1 comprises a coating head 2 having at least one delivery gap 6 for the liquid, an inclined flow plane 4 down which the liquid travels from the or each gap 6 and a backing roller 3 for transporting the sheet to contact the menisans 5 of liquid formed at the downstream end of the plane 4, the or each delivery gap 6 being fed with liquid under pressure from a supply pipe 10 via first and second pressure distributing chambers 9 and 8 respectively and the communicating gap 7 between the first and second chambers 9 and 8 having a cross-sectional area which is less than the cross-sectional area of the delivery gap 6. Preferably gap 7 is 5 to 10 times smaller than delivery gap 6. Typically the width S of the gap 6 is 1.5 to 5mm while the width s of the connecting gap 7 is 0.3 to 0.5mm. In an alternative embodiment [Fig. 3] the first pressure distributing chamber is formed by a pipe 12 disposed in and running the length of the second pressure distributing chamber 13. The pipe 12 has a plurality of downwardly facing bores 14 formed in its surface the total cross-sectional area of which is smaller than the cross-sectional area of the delivery gap 6. In order to minimise pressure drop along the length of pipe 12 the bores may be of equal diameter but spaced apart at intervals which decrease along the pipe from its inlet end; the bores may be evenly spaced but of increasing diameter along the pipe, or the spacing and diameters may be constant but selected so that there is a maximum drop in pressure of 5%.
GB3578473A 1972-08-03 1973-07-27 Cassade coater Expired GB1388245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722238133 DE2238133B2 (en) 1972-08-03 1972-08-03 CASCADE FOUNDER

Publications (1)

Publication Number Publication Date
GB1388245A true GB1388245A (en) 1975-03-26

Family

ID=5852524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3578473A Expired GB1388245A (en) 1972-08-03 1973-07-27 Cassade coater

Country Status (8)

Country Link
US (1) US3893410A (en)
JP (1) JPS5535990B2 (en)
BE (1) BE802172A (en)
CH (1) CH552415A (en)
DE (1) DE2238133B2 (en)
FR (1) FR2195171A5 (en)
GB (1) GB1388245A (en)
IT (1) IT990463B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143190A (en) * 1977-01-27 1979-03-06 Polaroid Corporation Method and apparatus for coating webs
DE2721184C2 (en) * 1977-05-11 1983-09-01 Agfa-Gevaert Ag, 5090 Leverkusen Dimensionally stable foundry block
SE426657B (en) * 1977-12-30 1983-02-07 Svenska Traeforskningsinst PROCEDURE AND DEVICE FOR APPLICATION OF LIQUID ON A SPIRITUAL SURFACE
JPS54127940A (en) * 1978-03-29 1979-10-04 Fujitsu Ltd Coating blade
US4489671A (en) * 1978-07-03 1984-12-25 Polaroid Corporation Coating apparatus
US4411614A (en) * 1982-02-18 1983-10-25 E. I. Du Pont De Nemours & Co. Removable contoured insert for an extrusion die
DE3238904A1 (en) * 1982-10-21 1984-04-26 Agfa-Gevaert Ag, 5090 Leverkusen METHOD FOR THE MULTIPLE COATING OF MOVING RAILWAYS
US5234330A (en) * 1991-06-14 1993-08-10 Eastman Kodak Company Dies
DE69325524T2 (en) * 1992-01-21 2000-03-09 Sterling Diagnostic Imaging Geometry of the lip for bead coating
US6676754B1 (en) * 2000-06-30 2004-01-13 3M Innovative Properties Company Coating apparatus and methods of applying a polymer coating
JP2003181355A (en) * 2001-12-20 2003-07-02 Labo:Kk Coating material-supply nozzle
US6824818B2 (en) * 2001-12-27 2004-11-30 Soliant Llc Wet on wet process for producing films
DE102005042289A1 (en) * 2005-09-06 2007-03-15 Fleissner Gmbh Device for applying a uniformly thick over a large working width liquid layer on a web
CN105921360B (en) * 2016-07-01 2019-02-12 深圳市华星光电技术有限公司 Gap nozzle and apparatus for coating
KR20210147306A (en) * 2020-05-28 2021-12-07 주식회사 엘지에너지솔루션 Slot die coating device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE513714A (en) * 1951-08-23 1900-01-01
US2679231A (en) * 1951-09-07 1954-05-25 John Waldron Corp Web coating apparatus
BE545464A (en) * 1955-02-23 1900-01-01
US2940418A (en) * 1959-03-27 1960-06-14 Black Clawson Co Paper machinery
GB1048829A (en) * 1963-12-10 1966-11-23 Ilford Ltd High speed coating apparatus
US3442304A (en) * 1966-04-28 1969-05-06 Dole Eng Co James Filling apparatus
US3469563A (en) * 1966-10-12 1969-09-30 Dennison Mfg Co Apparatus for developing electrostatic images
US3479989A (en) * 1967-11-28 1969-11-25 Eastman Kodak Co Extrusion coating apparatus
US3712264A (en) * 1970-09-16 1973-01-23 Lehara W Inc Rotating paste depositer
JPS5139264B2 (en) * 1971-09-09 1976-10-27

Also Published As

Publication number Publication date
IT990463B (en) 1975-06-20
FR2195171A5 (en) 1974-03-01
JPS4959838A (en) 1974-06-11
DE2238133B2 (en) 1976-11-11
US3893410A (en) 1975-07-08
BE802172A (en) 1974-01-11
JPS5535990B2 (en) 1980-09-18
DE2238133A1 (en) 1974-02-14
CH552415A (en) 1974-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee