GB1358298A - Method and apparatus for caoting continuous web - Google Patents

Method and apparatus for caoting continuous web

Info

Publication number
GB1358298A
GB1358298A GB3319871A GB3319871A GB1358298A GB 1358298 A GB1358298 A GB 1358298A GB 3319871 A GB3319871 A GB 3319871A GB 3319871 A GB3319871 A GB 3319871A GB 1358298 A GB1358298 A GB 1358298A
Authority
GB
United Kingdom
Prior art keywords
blade
web
hopper
coating
layer
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
GB3319871A
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.)
Eastman Kodak Co
Original Assignee
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1358298A publication Critical patent/GB1358298A/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
    • 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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0042—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by pouring or allowing to flow in a continuous stream onto the surface, the entire stream being carried away by the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating involving several different techniques of application
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades

Landscapes

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

Abstract

1358298 Coating apparatus for webs EASTMAN KODAK CO 15 July 1971 [16 July 1970] 33198/71 Heading D1L A moving web is coated and overcoated by applying to the surface of a web a liquid composition, smoothing the applied coating by moving the coated web past the end of a flexible, trailing stationary blade which may have the other end fixed to a hopper, continuously metering a quantity of the same or a different composition as a layer onto the upper-most surface of the blade at a point spaced above the flexible end, allowing the layer to flow down the blade onto the coated web to form a coating thereon and curing the applied coatings simultaneously. The second coating is preferably applied to the blade from a cavity in the hopper via a discharge slot connecting the cavity with the upper-most surface of the blade. The Figure shows a two layer coater utilizing a single hopper for both coatings. A trailing blade 13 with flexible end, clamped between two sections 16 and 17 of the hopper is in engagement with the surface of web W or the coating applied thereto carried by rotating roller 10. The hopper section 17 contains a cavity 18 from which the coating composition fed into cavity 18 via inlet 19, is discharged through slot 20 as a flowable layer L along the underside of the blade to form a bead 21 extending completely across the deflected end 12 of the blade and between it and web W, and forming on the moving web a smooth first coating. The overcoating is applied from hopper section 16 via cavity 22 and downwardly inclined elongated slot 24 formed between the faces of hopper sections 16 and 23, to a point on the uppermost surface of the blade 13, as a ribbon which flows by gravity to form the layer L 1 which overcoats the first layer. In another embodiment, not shown, the first coating is applied to the web by a device separate and distinct from the hopper whilst in a further embodiment not shown, three coatings are applied to the web, one from a separate device and two from the hopper. The end of the blade may be knife-edged, rounded, or a compromise between rounded and knife-edged. The web is preferably raw paper, precoated baryta paper or polyethylene coated paper.
GB3319871A 1970-07-16 1971-07-15 Method and apparatus for caoting continuous web Expired GB1358298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5532370A 1970-07-16 1970-07-16

Publications (1)

Publication Number Publication Date
GB1358298A true GB1358298A (en) 1974-07-03

Family

ID=21997089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3319871A Expired GB1358298A (en) 1970-07-16 1971-07-15 Method and apparatus for caoting continuous web

Country Status (8)

Country Link
US (1) US3627564A (en)
JP (1) JPS544982B1 (en)
BE (1) BE770081A (en)
CA (1) CA943825A (en)
CH (1) CH545690A (en)
DE (1) DE2135438A1 (en)
FR (1) FR2101791A5 (en)
GB (1) GB1358298A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795896A (en) * 1972-02-24 1973-08-23 Eastman Kodak Co MATERIAL FOR MULTI-LAYER MAGNETIC RECORDING AND PROCESS OF PREPARATION
US3928679A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a multiple number of layers onto a substrate
US3928678A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a substrate
US3993019A (en) * 1973-01-26 1976-11-23 Eastman Kodak Company Apparatus for coating a substrate
US3996885A (en) * 1973-01-26 1976-12-14 Eastman Kodak Company Apparatus for coating a multiple number of layers onto a substrate
US4143190A (en) * 1977-01-27 1979-03-06 Polaroid Corporation Method and apparatus for coating webs
US4113903A (en) * 1977-05-27 1978-09-12 Polaroid Corporation Method of multilayer coating
US4106437A (en) * 1977-08-22 1978-08-15 Eastman Kodak Company Apparatus for multiple stripe coating
GB2006977B (en) * 1977-10-14 1982-02-24 Eastman Kodak Co Manufacture of coated paper
DE3071086D1 (en) * 1979-02-28 1985-10-24 Wiggins Teape Group Ltd Process and apparatus for controlling the deposition of a liquid onto a moving surface
US4442144A (en) * 1980-11-17 1984-04-10 International Business Machines Corporation Method for forming a coating on a substrate
JPS60188949A (en) * 1984-03-08 1985-09-26 Tokai Shoji Kk Coating method of emulsion to screen printing edition
JPH074568B2 (en) * 1988-06-07 1995-01-25 富士写真フイルム株式会社 Application method
JPH02189542A (en) * 1989-01-19 1990-07-25 Oji Paper Co Ltd Production of substrate for photographic printing paper
EP0575879A2 (en) * 1992-06-24 1993-12-29 E.I. Du Pont De Nemours And Company Pretreated substrate for slide bead coating
US5741549A (en) * 1994-04-29 1998-04-21 Maier; Gary W. Slide die coating method and apparatus with improved die lip
US5728430A (en) * 1995-06-07 1998-03-17 Avery Dennison Corporation Method for multilayer coating using pressure gradient regulation
US5962075A (en) * 1995-06-07 1999-10-05 Avery Dennison Method of multilayer die coating using viscosity adjustment techniques
US6824828B2 (en) 1995-06-07 2004-11-30 Avery Dennison Corporation Method for forming multilayer release liners
JPH09141172A (en) * 1995-11-21 1997-06-03 Sony Corp Coating apparatus
FI110274B (en) * 1996-11-04 2002-12-31 Metso Paper Inc Method and apparatus for coating a moving cardboard web
DE19652882A1 (en) * 1996-12-18 1998-06-25 Voith Sulzer Papiermasch Gmbh Applicator for direct or indirect application of a liquid or pasty application medium to a running material web, in particular made of paper or cardboard
DE10012344A1 (en) * 2000-03-14 2001-09-20 Voith Paper Patent Gmbh Continuous liquid curtain coating, for paper or card operates under specified conditions of temperature, pressure and viscosity, leaving thin wet film on surface
WO2002024340A1 (en) 2000-09-22 2002-03-28 Regents Of The University Of Minnesota Applicator device
US6824818B2 (en) * 2001-12-27 2004-11-30 Soliant Llc Wet on wet process for producing films
DE102004007927A1 (en) * 2004-02-18 2005-09-01 Basf Ag Chemically different flowable material application process to produce adhesive systems, paints and coatings on substrate involves use of multi-cascade nozzle for simultaneous deposition of several layers
GB0424005D0 (en) * 2004-10-29 2004-12-01 Eastman Kodak Co Method of coating
CN2749586Y (en) * 2004-11-05 2006-01-04 鸿富锦精密工业（深圳）有限公司 Multiple coating equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE560654A (en) * 1956-09-11 1900-01-01
US3442684A (en) * 1963-11-27 1969-05-06 Int Paper Co Bent blade clay coating

Also Published As

Publication number Publication date
JPS544982B1 (en) 1979-03-12
DE2135438A1 (en) 1972-01-20
BE770081A (en) 1971-11-16
AU3127371A (en) 1973-01-18
CH545690A (en) 1974-02-15
CA943825A (en) 1974-03-19
FR2101791A5 (en) 1972-03-31
US3627564A (en) 1971-12-14

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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