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GB1122021A - Coating method and apparatus - Google Patents

Coating method and apparatus

Info

Publication number
GB1122021A
GB1122021A GB23340/64A GB2334064A GB1122021A GB 1122021 A GB1122021 A GB 1122021A GB 23340/64 A GB23340/64 A GB 23340/64A GB 2334064 A GB2334064 A GB 2334064A GB 1122021 A GB1122021 A GB 1122021A
Authority
GB
United Kingdom
Prior art keywords
liquid
curtain
slot
housing
tubular body
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
GB23340/64A
Inventor
Walter George Waters
David Robert Wight
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
Original Assignee
Kodak Ltd
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 filed Critical Kodak Ltd
Priority to GB23340/64A priority Critical patent/GB1122021A/en
Priority to US460019A priority patent/US3513017A/en
Priority to FR19372A priority patent/FR1435600A/en
Priority to DE1965E0029448 priority patent/DE1546913A1/en
Publication of GB1122021A publication Critical patent/GB1122021A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • 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
    • B05C5/002—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles
    • 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
    • B05C5/005—Curtain coaters
    • 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
    • B05C9/02—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 liquid or other fluent material to surfaces by single means not covered by groups B05C1/00 - B05C7/00, whether or not also using other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/16—Coating processes; Apparatus therefor
    • G03F7/18—Coating curved surfaces
    • 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
    • B05D2254/00—Tubes
    • B05D2254/02—Applying the material on the exterior of the tube
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/04—Curtain coater
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core

Landscapes

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

Abstract

A method of coating a tubular body with a layer of liquid comprises feeding the liquid so that it falls continuously and freely downwards in a curtain extending continuously round a substantially vertical axis, the liquid having a surface tension such that the curtain contracts inwards as the liquid falls, and continuously feeding the tubular body downwards and centrally within the curtain of liquid so that the tubular body meets the contracting curtain whereby it is coated over its entire periphery as it passes its point of contact with the curtain. The speed and direction of the tubular body and liquid at the point of contact may be the same. The liquid may be allowed to fall before contacting the tube for a period long enough to allow a horizontal section of the falling liquid acquire a uniform thickness by creating a gas pressure inside the curtain to cause the liquid to follow a more outwardly curving path. The liquid may be aqueous gelatin solution, a silver halide emulsion. Films e.g. cellulose acetate may be formed by feeding the coated tube through a solvent evaporating chamber, and the cast film slit and stripped off. The cast film may be further coated to form a photographic film whilst still on the casting tube. The tubular body may be coated with at least two superimposed layers of one or more liquids by feeding the liquid in at least two curtains which may be concentric and may then touch by an outer curtain contracting inwardly onto the inner curtain to form one combined curtain. The tubes coated may be solid or hollow, and coated, hollow flexible tubes may be slit longitudinally and formed into a flat coated sheet exhibiting no edge effects. The tube may be of paper or a photographic film base, and the liquid a photographic silver halide emulsion. Cables may be coated with polyvinyl chloride or other insulating materials. Apparatus for coating tubes comprises a housing having at least one annular slot which may be elliptical or circular in the base thereof for feeding a liquid vertically downwards from the housing in a closed curtain extending along the slot and a conduit for supplying the coating liquid uniformly to the slot, the housing having an aperture within the slot and conduit through which a tubular body can be fed vertically downwards within the curtain of liquid. The slot need not be continuous. In Fig. 1, annular housing 1 has a narrow annular slot 2 at the base thereof and diametrically opposed conduits 3 through which liquid coating composition is fed to the top of the slot 2. Conduit 3 leads into chambers 4 acting as reservoirs for the liquid. The annular housing 1 has flanges 7, 8 extending inwardly from the bottom and top of the housing respectively to form an aperture 9 of diameter large enough to permit hollow cylindrical tube 10 to pass downwardly through it. Housing 1 also comprises a conduit 11 for gas under pressure to pass into the space between flanges 8, 7, and flange 7 comprises conduits 12 to allow the gas to escape to the space between the tubular body and the curtain of coating liquid. In Fig. 2 (not shown) apparatus having two concentric annular slots is illustrated.ALSO:Tube coating apparatus comprises a housing having at least one annular slot which may be elliptical or circular in the base thereof for feeding a liquid vertically downwards from the housing in a closed curtain extending along the slot and a conduit for supplying the coating liquid uniformly to the slot, the housing having an aperture within the slot and conduit through which a tubular body can be fed vertically downwards within the curtain of liquid. The slot need not be continuous. In Figure 1, annular housing 1 has a narrow annular slot 2 at the base thereof and diametrically opposed conduits 3 through which liquid coating composition is fed to the top of the slot 2. Conduit 3 lead into chambers 4 acting as reservoirs for the liquid. The annular housing 1 has flanges 7, 8 extending inwardly from the bottom and top of the housing respectively to form an aperture 9 of diameter large enough to permit hollow cylindrical tube 10 to pass downwardly through it. Housing 1 also comprises a conduit 11 for gas under pressure to pass into the space between flanges 8, 7, and flange 7 comprises conduits 12 to allow the gas to escape to the space between the tubular body and the curtain of coating liquid. In Figure 2 (not shown) apparatus having two concentric annular slots is illustrated.
GB23340/64A 1964-06-05 1964-06-05 Coating method and apparatus Expired GB1122021A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB23340/64A GB1122021A (en) 1964-06-05 1964-06-05 Coating method and apparatus
US460019A US3513017A (en) 1964-06-05 1965-06-01 Coating method and apparatus for coating layers of liquid material onto a support
FR19372A FR1435600A (en) 1964-06-05 1965-06-03 New coating process and apparatus for implementing this process
DE1965E0029448 DE1546913A1 (en) 1964-06-05 1965-06-03 Method and device for coating a cylindrical body with a liquid substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23340/64A GB1122021A (en) 1964-06-05 1964-06-05 Coating method and apparatus

Publications (1)

Publication Number Publication Date
GB1122021A true GB1122021A (en) 1968-07-31

Family

ID=10194054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23340/64A Expired GB1122021A (en) 1964-06-05 1964-06-05 Coating method and apparatus

Country Status (4)

Country Link
US (1) US3513017A (en)
DE (1) DE1546913A1 (en)
FR (1) FR1435600A (en)
GB (1) GB1122021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469960A1 (en) * 1979-11-26 1981-05-29 Michel Poirier METHOD FOR CONTINUOUSLY REALIZING THE COATING OF THE EXTERNAL SURFACE OF A PROFILE, DEVICE FOR ITS IMPLEMENTATION AND PROFILE OBTAINED

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632374A (en) * 1968-06-03 1972-01-04 Eastman Kodak Co Method of making photographic elements
US3690288A (en) * 1970-02-03 1972-09-12 Republic Steel Corp Apparatus for processing coiled tubing having turns prebent to varying radii of curvature
US3851623A (en) * 1971-12-28 1974-12-03 F Landry Method of and device for coating lengths of linear elements
US3961104A (en) * 1973-06-11 1976-06-01 John Ernest Tanner Internal cylindrical bearing surfaces
US4128667A (en) * 1974-01-10 1978-12-05 Polaroid Corporation Manipulation of coating streams with air foils
FR2497142A1 (en) * 1980-12-29 1982-07-02 Cany Leon MACHINE FOR THE CONTINUOUS PRODUCTION OF A RING TUBE CONTAINING AN INTERIOR THREAD
DE3729266C1 (en) * 1987-09-02 1988-11-10 Bayer Ag Method and device for applying a flowable, plastic, in particular foam, reaction mixture
FI83490C (en) * 1989-05-10 1991-07-25 Neste Oy Method and apparatus for making a fiber-reinforced material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1317426A (en) * 1919-09-30 Method of hakckia- sheet-si ocs
US1501764A (en) * 1922-04-08 1924-07-15 Warren E Flint Coating device for metallic strips
CH166405A (en) * 1930-12-09 1933-12-31 Lonza Ag Process for the production of artificial structures.
US2447420A (en) * 1945-09-29 1948-08-17 Moore & Co Samuel Plastic coated article
US3188256A (en) * 1961-06-22 1965-06-08 Western Electric Co Thermal radiation method of measuring coating thickness
US3222721A (en) * 1962-06-25 1965-12-14 Anaconda Wire & Cable Co Dual extrusion apparatus
US3227786A (en) * 1962-10-25 1966-01-04 Anaconda Wire & Cable Co Method of jacketing telephone cables
US3365325A (en) * 1964-02-13 1968-01-23 Continental Can Co Apparatus for creation of a falling curtain of liquid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469960A1 (en) * 1979-11-26 1981-05-29 Michel Poirier METHOD FOR CONTINUOUSLY REALIZING THE COATING OF THE EXTERNAL SURFACE OF A PROFILE, DEVICE FOR ITS IMPLEMENTATION AND PROFILE OBTAINED
EP0029792A1 (en) * 1979-11-26 1981-06-03 Dujardin Montbard Somenor Apparatus for continuously coating the outside surface of a profiled element

Also Published As

Publication number Publication date
FR1435600A (en) 1966-04-15
DE1546913A1 (en) 1970-04-23
US3513017A (en) 1970-05-19

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