US3413143A - High speed coating apparatus - Google Patents

High speed coating apparatus Download PDF

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Publication number
US3413143A
US3413143A US414238A US41423864A US3413143A US 3413143 A US3413143 A US 3413143A US 414238 A US414238 A US 414238A US 41423864 A US41423864 A US 41423864A US 3413143 A US3413143 A US 3413143A
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US
United States
Prior art keywords
web
slot
coating
applicator
liquid
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 - Lifetime
Application number
US414238A
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English (en)
Inventor
Cameron Ewen
Wills Peter Alfred Robert
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Ilford Imaging UK Ltd
Original Assignee
Ilford 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
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Publication of US3413143A publication Critical patent/US3413143A/en
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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
    • B05C5/02—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
    • 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
    • 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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/40—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material
    • 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
    • D21H5/0012—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours
    • D21H5/0015—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours only one side of the paper being in contact with the treating medium, e.g. paper carried by support

Definitions

  • ABSTRACT OF THE DISCLOSURE A method of applying a coating liquid to a moving web in which the web is moved past an applicator head having three blades with parallel tips which define two closed-ended clots, coating liquid being pumped under pressure from a first said slot on the approach side of the web into the space between the applicator and the web, a fluid seal thereby being formed between the middle blade of the applicator and the web, a predetermined portion of the liquid being extracted via the second slot.
  • This invention relates to a method and apparatus for applying thin coatings to flexible webs travelling at relatively high speeds for example for applying thin layers of gelatin or other colloid material to film base as a step in the production of photographic materials.
  • FIGURE 1 of the accompanying drawing in which is shown the travelling web 1, the blades of the applicator 2 and 3 defining between them a slot opening 4, the coating composition layer 5 and the body of coating composition 6 created between the slot opening and the web surface. It is essential for this type of coating method that this body of liquid remains between the web and the blades during the whole coating process.
  • a method of applying a thin layer of a coating liquid to a travelling web which comprises causing the web to travel in a predetermined path and supplying coating liquid to an applicator located in juxtaposition to the web, the said applicator comprising three parallel blades which extend substantially across the width of the web, the said blades defining between them two narrow slot openings which are closed at their ends, the said blades being each located at a predetermined fixed distance from the travelling web, the said coating liquid being pumped through the slot on the approach side of the web into the space between the blades of the applicator and the web, thereby forming a seal between the middle blade of the applicator and the web, a portion of the said coating liquid being extracted from the space between the applicator and the web via the second said slot, the residual portion of the said coating liquid remaining as a coating on the travelling web.
  • a metering pump is used to pump the coating liquid through the first slot and that a metering pump is used to extract the coating liquid out of the second slot so that a known amount of coating liquid may be coated on to the travelling web, the quantity being the quantity delivered by the metering pump through the first slot minus the amount extracted by the metering pump from the second slot.
  • twice the required amount of coating liquid is delivered by the first pump and half of this quantity is extracted by the second pump.
  • a web 10 on a roller 11 is caused to travel past an applicator 12.
  • Applicator 12 is composed of a top blade 13, a middle blade 14 and a bottom blade 15. Defined by these three blades are two narrow slots 16 and 17. The ends of the slots are covered by end plates of which only 18 can be seen. Connected to the lower slot 16 which is the upstream slot is an expansion chamber 19 into which a duct 20 leads.
  • Coating liquid 21 is pumped by means not shown via duct 20 into the expansion chamber 19 and thence via slot 16 into the space between the applicator and the web.
  • another expansion chamber 22 Connected to the slot 17 is another expansion chamber 22 and connected to this chamber is a duct 23. Coating liquid is removed by means not shown from the space between the applicator and the web via the slot 17 and the expansion chamber 22 out of the applicator through duct 23.
  • More coating liquid than is required can thus be pumped via the slot 16 in the space between the applicator and the web, this excess of liquid ensuring that the gap 24 between the end of the blade 14 and the web is effectively sealed with coating liquid, thus preventing anything other than coating liquid entering the region of low pressure which exists above the blade 14.
  • the excess coating liquid is then extracted by means of a pump attached to duct 23 leaving the required amount of coating liquid to form a coating on the web.
  • the blade 13 should be nearly parallel to the web and spaced apart from it by not more than three times the final wet thickness of the coating applied to the web. If the distance of the blade 13 is more than three times the final wet thickness of the coating turbulence will be set up in the coating liquid which will affect the smoothness of the applied coating.
  • the preferred method of coating is to use an applicator wherein all three blades are at an equal distance from the web, this distance being not more than three times the final wet thickness of the applied coating and twice the required amount of coating liquid is delivered by the first pump and half of this quantity is extracted by the second pump.
  • FIGURE 4 there may be additional slots in an applicator of the type herein employed, e.g. where it is desired to coat two layers of coating material simultaneously on to the web.
  • FIGURE 4 there are shown four blades 25, 26, 27 and 28 which define three slots 29, 30 and 31.
  • Coating liquid 3:2 is pumped through slot 29 into the cavity between the applicator and the web 33. This coating liquid seals the gap between blade 26 and the web. A proportion of this liquid is then drawn off through slot 30, the remainder staying on the web as the bottom coat 34.
  • Another coating liquid 35 is then pumped through slot 31 and this forms a coat 36 on coat 34.
  • the invention includes not only the method described above but also the novel apparatus used to carry out the method.
  • a method of applying a thin layer of a coating liquid to a travelling web which comprises causing the web to travel in a predetermined path and supplying coating to an applicator located in juxtaposition to the web, the said applicator consisting of three blades with parallel tips which extend substantially across the width of the web, the said blades defining between them first and second narrow slot openings which are closed at their ends, the second slot being wholly behind the first slot in the direction of travel of the web, the edges of the said blades facing the web being each located at a predetermined fixed distance therefrom, the said coating liquid being pumped under pressure through the first said slot on the approach side of the web into the space between the blades of the applicator and the web, thereby forming a seal between the middle blade of the applicator and the web, a predetermined portion of the said coating liquid being extracted from the space between the applicator and the web via the second said slot, the residual portion of the said coating liquid remaining as a coating on the travelling web.
  • a method according to claim 1 wherein the liquid is pumped through the first said slot at a first metered fiow rate, the liquid extracted via the second said slot being pumped at a second metered flow rate which is less than the said first flow rate.
  • a method of applying two thin layers of a coating liquid to a travelling web which comprises causing the web to travel in a predetermined path and supplying coating to an applicator located in juxtaposition to the web, the said applicator consisting of four blades with parallel tips which extend substantially across the width of the web, the said four blades define, respectively, between them first, second and third narrow slot openings which are closed at their ends, the second and third slots being wholly behind the first slot in the direction of travel of the web, the edges of the said blades facing the web being each located at a predetermined fixed distance therefrom, the said coating liquid being pumped under pressure through the first said slot on the approach side of the web into the space between the blades of the applicator and the web, thereby forming a seal between the middle blade of the applicator and the web, a predetermined portion of the said coating liquid being extracted from the space between the applicator and the web via the second said slot, the residual portion of the said coating liquid remaining as a coating on the travelling web, and pumping one other coating liquid
  • a slot coating apparatus which comprises means for traversing a web to be coated past a coating head, the said coating head constituting of three blades with parallel tips which define between them first and second narrow slot openings which are closed at their ends, the second slot being behind the first slot in the direction of movement of the web and two pumps, one for pumping coating liquid under pressure into the first slot and one for extracting coating liquid via the second slot.
  • a slot coating apparatus according to claim 13 wherein the two pumps are both metering pumps.
  • a slot coating apparatus which comprises means for traversing a web to be coated past a coating head, the said coating head consisting of four blades with parallel tips which define between them first, second and third slot openings which are closed at their ends, the second slot being behind the first slot and the third slot being behind the second slot in the direction of movement of the web, and three pumps, one for pumping coating liquid under References Cited UNITED STATES PATENTS 2,761,791 9/1956 Russell l17--34 3,027,821 4/1962 Wright 1184l0 X 3,196,832 7/1965 Zin 118-410 X ALFRED L. LEAVITT, Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
US414238A 1963-12-10 1964-11-27 High speed coating apparatus Expired - Lifetime US3413143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48765/63A GB1048829A (en) 1963-12-10 1963-12-10 High speed coating apparatus

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US3413143A true US3413143A (en) 1968-11-26

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US (1) US3413143A (de)
BE (1) BE656944A (de)
CH (1) CH442087A (de)
DE (1) DE1577798A1 (de)
GB (1) GB1048829A (de)
NL (1) NL6414375A (de)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496012A (en) * 1967-02-13 1970-02-17 Mead Corp Coating apparatus and method
US3526528A (en) * 1965-10-28 1970-09-01 Fuji Photo Film Co Ltd Multiple doctor coating process and apparatus
US3533833A (en) * 1966-07-01 1970-10-13 Fuji Photo Film Co Ltd Coating process
US3557716A (en) * 1968-07-01 1971-01-26 Sven Birger Westin Confectionery mould
US3584600A (en) * 1967-07-21 1971-06-15 Fuji Photo Film Co Ltd Multiple doctor blade coating apparatus
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
US3893410A (en) * 1972-08-03 1975-07-08 Agfa Gevaert Ag Cascade coater
US3928678A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a substrate
US3928679A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a multiple number of layers onto a substrate
US3937177A (en) * 1974-03-07 1976-02-10 Versatec, Inc. Electrostatic printing machine with improved toner fountain and recovery system
US4025671A (en) * 1973-01-12 1977-05-24 Philip Morris Incorporated Method for applying continuous longitudinal bands of liquid coating to a moving strip
US4038442A (en) * 1975-09-16 1977-07-26 Fuji Photo Film Co., Ltd. Method for coating
US4062492A (en) * 1975-04-10 1977-12-13 Molins Limited Liquid-applicator nozzles
US4074655A (en) * 1976-10-18 1978-02-21 Armstrong Cork Company Edge coating applicator nozzle
US4092951A (en) * 1974-09-16 1978-06-06 Kopis Floyd B Meniscus forming applicator including vacuum anti drip
US4113903A (en) * 1977-05-27 1978-09-12 Polaroid Corporation Method of multilayer coating
US4180601A (en) * 1974-09-16 1979-12-25 Kopis Floyd B Method of applying liquid to solid surfaces
US4230782A (en) * 1978-05-15 1980-10-28 Xerox Corporation Migration imaging system with meniscus development
EP0051698A1 (de) * 1980-11-06 1982-05-19 Consolidated Papers, Inc. Verfahren und Vorrichtung zum Beschichten von Papier
US4440811A (en) * 1979-06-13 1984-04-03 Konishiroku Photo Industry Co., Ltd. Method for coating and an apparatus for coating
US4537801A (en) * 1982-05-25 1985-08-27 Fuji Photo Film Co., Ltd. Coating method and apparatus
US4675208A (en) * 1983-12-29 1987-06-23 Konishiroku Photo Industry Co., Ltd. Coating method and apparatus
US4986744A (en) * 1988-03-18 1991-01-22 Braas Gmbh Apparatus for manufacturing multi-layered concrete roof tiles
US5112653A (en) * 1989-07-03 1992-05-12 Consolidated Papers, Inc. Method of and apparatus for coating high speed traveling webs
US5192591A (en) * 1991-11-14 1993-03-09 Beloit Technologies, Inc. Short dwell coater apparatus
US5198030A (en) * 1991-06-18 1993-03-30 E. I. Du Pont De Nemours And Company Bead edge guide for use in slide-bead coating
US5199991A (en) * 1991-04-19 1993-04-06 Beloit Technologies, Inc. Short dwell coater apparatus
US5456944A (en) * 1991-10-15 1995-10-10 Eastman Kodak Company Magnetic dispersion coating method having high shear regions
WO1995029764A1 (en) * 1994-04-29 1995-11-09 Minnesota Mining And Manufacturing Company Die coating method and apparatus
US5514416A (en) * 1994-02-08 1996-05-07 Minnesota Mining And Manufacturing Company Cross flow knife coater for applying a coating to a web
US5639305A (en) * 1994-04-29 1997-06-17 Minnesota Mining And Manufacturing Company Die coating method and apparatus
US5728430A (en) * 1995-06-07 1998-03-17 Avery Dennison Corporation Method for multilayer coating using pressure gradient regulation
US5741549A (en) * 1994-04-29 1998-04-21 Maier; Gary W. Slide die coating method and apparatus with improved die lip
US5759274A (en) * 1994-04-29 1998-06-02 Minnesota Mining And Manufacturing Company Die coating apparatus with surface covering
US5851289A (en) * 1995-11-21 1998-12-22 Sony Corporation Applicator
US5858097A (en) * 1995-02-15 1999-01-12 Emtec Magnetics Gmbh Apparatus for the production of a magnetic recording medium
US5962075A (en) * 1995-06-07 1999-10-05 Avery Dennison Method of multilayer die coating using viscosity adjustment techniques
US5997645A (en) * 1995-05-24 1999-12-07 3M Innovative Properties Company Inserts for stripe coating
US6106900A (en) * 1998-01-21 2000-08-22 Alcan International Limited Multi-layer coating of elongated strip articles
US20030124254A1 (en) * 2001-12-27 2003-07-03 Rexam Image Products, Inc. Wet on wet process for producing films
US6699326B2 (en) 2000-09-22 2004-03-02 Regents Of The University Of Minnesota Applicator
WO2004050245A1 (en) * 2002-12-05 2004-06-17 International Business Machines Corporation Confinement of liquids on surfaces
US6824828B2 (en) 1995-06-07 2004-11-30 Avery Dennison Corporation Method for forming multilayer release liners
US20050247673A1 (en) * 2004-05-07 2005-11-10 International Business Machines Corporation Confinement of fluids on surfaces
EP0757596B1 (de) * 1994-04-29 2008-05-14 Minnesota Mining And Manufacturing Company Vorrichtung und verfahren zur mehrschichtigen beschichtigung und zur wulstbeschichtung
US20120043120A1 (en) * 2010-08-23 2012-02-23 Kishor Purushottam Gadkaree Dual-Layer Method of Fabricating Ultracapacitor Current Collectors
WO2018191207A1 (en) * 2017-04-10 2018-10-18 Roche Diabetes Care, Inc. Multi-reagent slot die coating process and useful devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461843A (en) * 1967-11-21 1969-08-19 Stanford Research Inst Toner application apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761791A (en) * 1955-02-23 1956-09-04 Eastman Kodak Co Method of multiple coating
US3027821A (en) * 1958-06-18 1962-04-03 Hycon Mfg Company Film processing applicator
US3196832A (en) * 1963-02-20 1965-07-27 Rca Corp Fluid applicator apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761791A (en) * 1955-02-23 1956-09-04 Eastman Kodak Co Method of multiple coating
US3027821A (en) * 1958-06-18 1962-04-03 Hycon Mfg Company Film processing applicator
US3196832A (en) * 1963-02-20 1965-07-27 Rca Corp Fluid applicator apparatus

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526528A (en) * 1965-10-28 1970-09-01 Fuji Photo Film Co Ltd Multiple doctor coating process and apparatus
US3533833A (en) * 1966-07-01 1970-10-13 Fuji Photo Film Co Ltd Coating process
US3496012A (en) * 1967-02-13 1970-02-17 Mead Corp Coating apparatus and method
US3584600A (en) * 1967-07-21 1971-06-15 Fuji Photo Film Co Ltd Multiple doctor blade coating apparatus
US3557716A (en) * 1968-07-01 1971-01-26 Sven Birger Westin Confectionery mould
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
US3893410A (en) * 1972-08-03 1975-07-08 Agfa Gevaert Ag Cascade coater
US4025671A (en) * 1973-01-12 1977-05-24 Philip Morris Incorporated Method for applying continuous longitudinal bands of liquid coating to a moving strip
US3928678A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a substrate
US3928679A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a multiple number of layers onto a substrate
US3937177A (en) * 1974-03-07 1976-02-10 Versatec, Inc. Electrostatic printing machine with improved toner fountain and recovery system
US4092951A (en) * 1974-09-16 1978-06-06 Kopis Floyd B Meniscus forming applicator including vacuum anti drip
US4180601A (en) * 1974-09-16 1979-12-25 Kopis Floyd B Method of applying liquid to solid surfaces
US4062492A (en) * 1975-04-10 1977-12-13 Molins Limited Liquid-applicator nozzles
US4038442A (en) * 1975-09-16 1977-07-26 Fuji Photo Film Co., Ltd. Method for coating
US4074655A (en) * 1976-10-18 1978-02-21 Armstrong Cork Company Edge coating applicator nozzle
US4113903A (en) * 1977-05-27 1978-09-12 Polaroid Corporation Method of multilayer coating
US4230782A (en) * 1978-05-15 1980-10-28 Xerox Corporation Migration imaging system with meniscus development
US4440811A (en) * 1979-06-13 1984-04-03 Konishiroku Photo Industry Co., Ltd. Method for coating and an apparatus for coating
EP0051698A1 (de) * 1980-11-06 1982-05-19 Consolidated Papers, Inc. Verfahren und Vorrichtung zum Beschichten von Papier
US4537801A (en) * 1982-05-25 1985-08-27 Fuji Photo Film Co., Ltd. Coating method and apparatus
US4675208A (en) * 1983-12-29 1987-06-23 Konishiroku Photo Industry Co., Ltd. Coating method and apparatus
US4986744A (en) * 1988-03-18 1991-01-22 Braas Gmbh Apparatus for manufacturing multi-layered concrete roof tiles
US5112653A (en) * 1989-07-03 1992-05-12 Consolidated Papers, Inc. Method of and apparatus for coating high speed traveling webs
US5199991A (en) * 1991-04-19 1993-04-06 Beloit Technologies, Inc. Short dwell coater apparatus
US5198030A (en) * 1991-06-18 1993-03-30 E. I. Du Pont De Nemours And Company Bead edge guide for use in slide-bead coating
US5456944A (en) * 1991-10-15 1995-10-10 Eastman Kodak Company Magnetic dispersion coating method having high shear regions
US5582645A (en) * 1991-10-15 1996-12-10 Eastman Kodak Company Magnetic dispersion coating apparatus having high shear regions
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Also Published As

Publication number Publication date
GB1048829A (en) 1966-11-23
CH442087A (de) 1967-08-15
DE1577798A1 (de) 1970-01-02
NL6414375A (de) 1965-06-11
BE656944A (de) 1965-04-01

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