US3192895A - Web coating apparatus - Google Patents

Web coating apparatus Download PDF

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Publication number
US3192895A
US3192895A US188426A US18842662A US3192895A US 3192895 A US3192895 A US 3192895A US 188426 A US188426 A US 188426A US 18842662 A US18842662 A US 18842662A US 3192895 A US3192895 A US 3192895A
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Prior art keywords
tank
web
coating
front wall
coating material
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Expired - Lifetime
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US188426A
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Merrill F Galer
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TI Gotham Inc
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Time Inc
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    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades
    • 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
    • B05C11/044—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 characterised by means for holding the blades
    • 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
    • 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
    • D21H5/006—Controlling or regulating
    • D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper
    • D21H5/0065—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper with blades

Definitions

  • This invention relates to a coating apparatus and more particularly, to a novel apparatus for imparting uniform coatings of controlled thickness on a web fed at high speed.
  • any lumps or particles in the coating material or skim formed thereon will eventually flow to the coating edge of the blade and prevent proper application of the coating material on the web.
  • a pond builds up between the web to be coated and the coating blade, and the coating blade is the sole means of metering the application of coating material from this pond onto the web. It is not surprising that in such coating apparatus it is diflicult to apply uniform coatings of desired thickness on the web.
  • the web to be coated is fed at high speed between a rotating cylinder and a tank for the coating material.
  • the coating material supplied to the tank is discharged therefrom on the surface of the fast-moving web through a narrow opening between a metering bar and the web to be coated, and the coating material is then spread uniformly on the web by a coating blade which also removes the excess coating material from the web.
  • skim, lumps or particles in the coating material will either remain in the tank or will be carried out of the tank by the circulation of the coating material without ever reaching the coating blade. Furthermore, because the coating material is being continuously withdrawn from the upper region of the tank by the moving Web, the coating material in the tank will not tend to skim. Since skim, lumps and undesirable particles are less likely to be carried to the coating blade and it does not operate with a large pond of coating material against it, the coating blade in the apparatus of the present invention is capable of improved coating action.
  • the single figure is a view partly in side elevation and partially broken away of a coating apparatus embodying the invention.
  • a paper web Ito be coated is fed at high speed between a rotating backup cylinder 2 and a tank 3 containing the coating material 4.
  • the coating material is pumped continuously to the tank through a conduit which communicates with the inside of a the tank through a port 6 in the side wall thereof.
  • the tank is supported by a pivotal frame F for movement toward and away from the backup cylinder. This permits the tank to be separated from the cylinder while the web is threaded through the apparatus and in the event the web breaks, so that the rotating cylinder will not pick up the coating material and throw it about.
  • the upper edges of the side walls of the tank are curved in complementary fashion to the outer periphery of the backup cylinder, and they are provided with sealing strips 7 of felt, Teflon or other suitable material which engage either the web near the edges thereof or the cylinder beyond the edges of the web to confine the coating fluid between the side walls of the tank in contact with the sur- 3,192,895 Patented July 6, 1965 face of the backup cylinder.
  • the tank can be properly oriented and adjusted relative to its supporting frame by adjusting the screws 8 at each corner of the tank, thereby also permitting the tank to be properly adjusted relative to the outer surface of the backup cylinder when it is in its operative position.
  • the upstream wall of the tank' is substantially higher than the downstream well.
  • An adjustable metering bar 9 having a beveled straightedge is placed adjacent the inner surface of the lower wall of the tank. This metering bar can be adjusted as to height and aligned with respect to the web to be'coated by adjusting the screws 10 at the bottom of the tank 3. When the metering bar is properly adjusted, it can be locked in place by lock screws 11 which pass through narrow slots 12 in the wall of the tank and threadably engage the metering bar. 7
  • the level of the coating fluid within the tank 3 is controlled by an adjustable U-shaped overflow pipe 13.
  • One end of the overflow pipe communicates with the coating fluid within the tank through a discharge port 14 in the bottom of the tank.
  • the outer end of the overflow pipe is connected to the inner end thereof by a swivel joint 15, so that the upper end of the pipe can be adjusted throughout a range between the height of the higher upstream Wall of the tank and the height of the upper edge of the metering bar.
  • This adjustment of the overflow pipe determines the level of the coating fluid within the tank and permits it to be regulated between these two heights as desired.
  • the coating material is continuously supplied to the tank and discharged in part through the narrow opening between the upper edge of the metering bar and the web to .be coated, and in part through the overflow pipe 13.
  • the coating fluid discharged through the overflow pipe is collected in an underneath basin and returned through a conduit to a supply tank from which the coating fluid is supplied to the tank.
  • the coating fluid discharged from the tank between the metering bar and the web and in excess of that carried by the web is also collected in this same sump.
  • This continuous circulation of the coating fluid prevents skin from forming on the upper surface of the coat ing fluid within the tank. Moreover, the turbulence witha from the tank a quantity of coating material somewhat in excess of the amount to be coated thereon.
  • the coating material is spread uniformly and in the desired thickness to the surface of the web by a coating blade 17.
  • the coating blade is supported in a blade holder 18 which is mounted for pivotal movement toward and away from the backup cylinder 2.
  • the edge of the blade opposite the coating edge is received loosely within a slot 19 of the blade holder containing an internal project-ion 20 extending the length of the blade.
  • the blade holder extends upwardly on the side of the blade opposite the cylinder, and it supports a partially recessed inflatable tube 21, for example, a tube made of neoprene, latex, gum rubber or other inflatable material, which extends the length of the coating blade.
  • the coating edge of the blade is urged into the desired pressure contact against the web and the backup cylinder, arching the blade slightly between its line of engagement with the web and its line of engagement with the projection 20 to eliminate any ripples therein and to permit the blade to apply a smooth coating on the web.
  • the tube engages the blade approximately midway between the coating edge and the projection 20.
  • pressure supplied to the inflatable tube can be regulated to obtain the desired coating action.
  • the coating blade In addition to spreading a smooth and controlled coating on the web, the coating blade also removes the excess coating material.
  • the excess coating material falls by gravity into the sump below from which, as explained above, the coating material is returned tothe storage tank from which the coating material is supplied to the tank 3.
  • the coating fluid can be supplied at a rate merely to replenish the coating fluid picked up by the web in which case none of the coating fluid need be discharged through the overflow pipe 13.
  • the coating fluid may be supplied at a faster rate than it is picked up by the web, permitting the excess to be discharged through the overflow pipe.
  • the height of the metering gate can be adjusted to widen the narrow opening defined between the metering bar and the web and permit more coating fluid to pass through the opening, or to restrict the size of the opening to limit the coating fluid discharged therethrough to that which is to be carried by the web.
  • a coatin apparatus for a moving web comprising a tank for a coating composition, said tank having a front Wall extending transversely of the direction of the web and a side wall at both ends of the front wall, said side walls confining and directing flow of the coating composition toward the front wall, a rotatable cylinder above said tank for supporting a web of paper and passing it downwardly into said tank, the upper edges of the side walls near the front wall being substantially complementary to said cylinder, an adjustable metering bar on said front wall extending lengthwise of said cylinder in spaced relation thereto for regulating the flow of coating composition between said metering bar and the web, and a coating blade spaced from said front 'wall and outside said tank for spreading the coating composition evenly on theweb and removing excess coating composition from said web.
  • a coating apparatus as set forth in claim 1 including means interposed between said complementary upper edges of the side walls and said cylinder for preventing leakage between said tank and said cylinder.
  • a coating apparatus as set forth in claim 1 including means for adjusting the spacing between said metering bar and said web.
  • a coating apparatus as set forth in claim 1 including an opening in said tank for admitting coating composition into said tank.
  • a coating apparatus as set forth in claim 1 including a pivotal overflow pipe communicating with the interior of the tank for regulating the level of the coating composition to the desired height above the metering bar.
  • a coating apparatus comprising a rotatable cylinder for guiding a moving web to be coated around the lower portion thereof, a tank into which a coating material is supplied, said tank having lower and higher walls which confine a quantity of the coating material within the tank, the lower wall being spaced beneath the cylinder and extending transversely of the web and co-operating with the web to define a discharge passage from the tank through which a metered quantity of the coating material can pass in contact with the surface of the moving web, a metering bar adjustable on said transversely extending wall of the tank to control the rate of flow through the discharge passage, and a coating blade spaced apart from the metering bar for spreading the coating material evenly on the surface of the web and remove the excess coating material.
  • a coating apparatuses set forth in claim 6 including means to provide a controlled overflow from the tank when the coating material is delivered to the tank at a rate in excess of the rate of flow through the discharge passage.

Description

July 6, 1965 M- F. GALER WEB COATING APPARATUS Filed April 18, 1962 INVENTOR MERRILL F. GALER HIS ATTORNEYS United States Patent York Filed Apr. 18, 1962, Ser. No. 188,426 8 Claims. (Cl. 118-126) This invention relates to a coating apparatus and more particularly, to a novel apparatus for imparting uniform coatings of controlled thickness on a web fed at high speed.
In conventional coating apparatus in which the coating material is fed by gravity to a coating blade which applies a film of the coating material onto the surface of a web, any lumps or particles in the coating material or skim formed thereon will eventually flow to the coating edge of the blade and prevent proper application of the coating material on the web.
In such coating apparatus, a pond builds up between the web to be coated and the coating blade, and the coating blade is the sole means of metering the application of coating material from this pond onto the web. It is not surprising that in such coating apparatus it is diflicult to apply uniform coatings of desired thickness on the web.
In the coating apparatus of the present invention,'the web to be coated is fed at high speed between a rotating cylinder and a tank for the coating material. The coating material supplied to the tank is discharged therefrom on the surface of the fast-moving web through a narrow opening between a metering bar and the web to be coated, and the coating material is then spread uniformly on the web by a coating blade which also removes the excess coating material from the web.
In the coating apparatus of the present invention, skim, lumps or particles in the coating material will either remain in the tank or will be carried out of the tank by the circulation of the coating material without ever reaching the coating blade. Furthermore, because the coating material is being continuously withdrawn from the upper region of the tank by the moving Web, the coating material in the tank will not tend to skim. Since skim, lumps and undesirable particles are less likely to be carried to the coating blade and it does not operate with a large pond of coating material against it, the coating blade in the apparatus of the present invention is capable of improved coating action.
The present invention may be fully understood from the following description in conjunction with the accompanying drawing in which:
The single figure is a view partly in side elevation and partially broken away of a coating apparatus embodying the invention.
Referring to the drawing, a paper web Ito be coated is fed at high speed between a rotating backup cylinder 2 and a tank 3 containing the coating material 4. The coating material is pumped continuously to the tank through a conduit which communicates with the inside of a the tank through a port 6 in the side wall thereof.
The tank is supported by a pivotal frame F for movement toward and away from the backup cylinder. This permits the tank to be separated from the cylinder while the web is threaded through the apparatus and in the event the web breaks, so that the rotating cylinder will not pick up the coating material and throw it about. The upper edges of the side walls of the tank are curved in complementary fashion to the outer periphery of the backup cylinder, and they are provided with sealing strips 7 of felt, Teflon or other suitable material which engage either the web near the edges thereof or the cylinder beyond the edges of the web to confine the coating fluid between the side walls of the tank in contact with the sur- 3,192,895 Patented July 6, 1965 face of the backup cylinder. The tank can be properly oriented and adjusted relative to its supporting frame by adjusting the screws 8 at each corner of the tank, thereby also permitting the tank to be properly adjusted relative to the outer surface of the backup cylinder when it is in its operative position.
The upstream wall of the tank'is substantially higher than the downstream well. An adjustable metering bar 9 having a beveled straightedge is placed adjacent the inner surface of the lower wall of the tank. This metering bar can be adjusted as to height and aligned with respect to the web to be'coated by adjusting the screws 10 at the bottom of the tank 3. When the metering bar is properly adjusted, it can be locked in place by lock screws 11 which pass through narrow slots 12 in the wall of the tank and threadably engage the metering bar. 7
The level of the coating fluid within the tank 3 is controlled by an adjustable U-shaped overflow pipe 13. One end of the overflow pipe communicates with the coating fluid within the tank through a discharge port 14 in the bottom of the tank. The outer end of the overflow pipe is connected to the inner end thereof by a swivel joint 15, so that the upper end of the pipe can be adjusted throughout a range between the height of the higher upstream Wall of the tank and the height of the upper edge of the metering bar. This adjustment of the overflow pipe determines the level of the coating fluid within the tank and permits it to be regulated between these two heights as desired.
The coating material is continuously supplied to the tank and discharged in part through the narrow opening between the upper edge of the metering bar and the web to .be coated, and in part through the overflow pipe 13. The coating fluid discharged through the overflow pipe is collected in an underneath basin and returned through a conduit to a supply tank from which the coating fluid is supplied to the tank. The coating fluid discharged from the tank between the metering bar and the web and in excess of that carried by the web is also collected in this same sump.
This continuous circulation of the coating fluid prevents skin from forming on the upper surface of the coat ing fluid within the tank. Moreover, the turbulence witha from the tank a quantity of coating material somewhat in excess of the amount to be coated thereon.
The coating material is spread uniformly and in the desired thickness to the surface of the web by a coating blade 17. The coating blade is supported in a blade holder 18 which is mounted for pivotal movement toward and away from the backup cylinder 2. The edge of the blade opposite the coating edge is received loosely within a slot 19 of the blade holder containing an internal project-ion 20 extending the length of the blade. The blade holder extends upwardly on the side of the blade opposite the cylinder, and it supports a partially recessed inflatable tube 21, for example, a tube made of neoprene, latex, gum rubber or other inflatable material, which extends the length of the coating blade.
When the blade holder is in operative position and the tube 21 is inflated, the coating edge of the blade is urged into the desired pressure contact against the web and the backup cylinder, arching the blade slightly between its line of engagement with the web and its line of engagement with the projection 20 to eliminate any ripples therein and to permit the blade to apply a smooth coating on the web. The tube engages the blade approximately midway between the coating edge and the projection 20. The
pressure supplied to the inflatable tube can be regulated to obtain the desired coating action.
In addition to spreading a smooth and controlled coating on the web, the coating blade also removes the excess coating material. The excess coating material falls by gravity into the sump below from which, as explained above, the coating material is returned tothe storage tank from which the coating material is supplied to the tank 3.
It is apparent that the operation of the apparatus can be varied in certain respects. For example, the coating fluid can be supplied at a rate merely to replenish the coating fluid picked up by the web in which case none of the coating fluid need be discharged through the overflow pipe 13. However, to insure that sufiicient coating fluid is available to coat the fast-moving web, it may be preferred to supply the coating fluid at a faster rate than it is picked up by the web, permitting the excess to be discharged through the overflow pipe.
Also, the height of the metering gate can be adjusted to widen the narrow opening defined between the metering bar and the web and permit more coating fluid to pass through the opening, or to restrict the size of the opening to limit the coating fluid discharged therethrough to that which is to be carried by the web.
The invention has been shown and described in a single form and by way of example, and obviously, many variations and modifications can be made therein within the spirit of the invention; The invention, therefore, is not intended to be limited to any specified form or embodiment, except insofar as such limitations are expressly set forth in the appended claims.
I claim:
1. A coatin apparatus for a moving web comprising a tank for a coating composition, said tank having a front Wall extending transversely of the direction of the web and a side wall at both ends of the front wall, said side walls confining and directing flow of the coating composition toward the front wall, a rotatable cylinder above said tank for supporting a web of paper and passing it downwardly into said tank, the upper edges of the side walls near the front wall being substantially complementary to said cylinder, an adjustable metering bar on said front wall extending lengthwise of said cylinder in spaced relation thereto for regulating the flow of coating composition between said metering bar and the web, and a coating blade spaced from said front 'wall and outside said tank for spreading the coating composition evenly on theweb and removing excess coating composition from said web.
2. A coating apparatus as set forth in claim 1 including means interposed between said complementary upper edges of the side walls and said cylinder for preventing leakage between said tank and said cylinder.
3. A coating apparatus as set forth in claim 1 including means for adjusting the spacing between said metering bar and said web.
4. A coating apparatus as set forth in claim 1 including an opening in said tank for admitting coating composition into said tank.
5. A coating apparatus as set forth in claim 1 including a pivotal overflow pipe communicating with the interior of the tank for regulating the level of the coating composition to the desired height above the metering bar.
6. A coating apparatus comprising a rotatable cylinder for guiding a moving web to be coated around the lower portion thereof, a tank into which a coating material is supplied, said tank having lower and higher walls which confine a quantity of the coating material within the tank, the lower wall being spaced beneath the cylinder and extending transversely of the web and co-operating with the web to define a discharge passage from the tank through which a metered quantity of the coating material can pass in contact with the surface of the moving web, a metering bar adjustable on said transversely extending wall of the tank to control the rate of flow through the discharge passage, and a coating blade spaced apart from the metering bar for spreading the coating material evenly on the surface of the web and remove the excess coating material.
7. A coating apparatuses set forth in claim 6 including means to provide a controlled overflow from the tank when the coating material is delivered to the tank at a rate in excess of the rate of flow through the discharge passage.
8. A coating apparatus as set forth in claim 7 in which the means providing said controlled overflow from the tank includes a'pivotally adjustable overflow pipe communicating with the coating material Within the tank and having an upwardly turned end which regulates the level of the coating material within the tank when an excess quantity of coating material is delivered to the tank.
ReferencesCited by the Examiner UNITED STATES PATENTS 1,361,932 12/20 Van Avermaete 118--4l0 2,285,531 6/42 Rhodes et al 1l8-126 2,328,183 8/43 Barrett 118-413 2,464,771 3/49 Van Guelpen 118-413 X 2,914,788 12/59 Smith et a1.
3,030,917 4/62 Brown et al. 118-413 3,070,066 12/62 Faeber 118-413 3,079,889 3/63 Jacobs et a1 118413 X RICHARD D. NEVIUS, Primary Examiner.
JOSEPH B. SPENCER, Examiner.

Claims (1)

1. A COATING APPARATUS FOR A MOVING WEB COMPRISING A TANK FOR A COATING COMPOSITION, SAID TANK HAVING A FRONT WALL EXTENDING TRANSVERSELY OF THE DIRECTION OF THE WEB AND A SIDE WALL AT BOTH ENDS OF THE FRONT WALL, SAID SIDE WALLS CONFINING AND DIRECTING FLOW OF THE COATING COMPOSITION TOWARD THE FRONT WALL, A ROTATABLE CYLINDER ABOVE SAID TANK FOR SUPPORTING A WEB OF PAPER AND PASSING IT DOWNWARDLY INTO SAID TANK, THE UPPER EDGES OF THE SIDE WALLS NEAR THE FRONT WALL BEING SUBSTANTIALLY COMPLEMENTARY TO SAID CYLINDER, AN ADJUSTABLE METERING BAR ON SAID FRONT WALL EXTENDING LENGTHWISE OF SAID CYLINDER IN SPACED RELATION THERETO FOR REGULATING THE FLOW OF COATING COMPOSITION BETWEEN SAID METERING BAR AND THE WEB, AND A COATING BLADE SPACED FROM SAID FRONT WALL AND OUTSIDE SAID TANK FOR SPREADING THE COATING COMPOSITION EVENLY ON THE WEB AND REMOVING EXCESS COATING COMPOSITION FROM SAID WEB.
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Cited By (31)

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US3302610A (en) * 1963-10-10 1967-02-07 Beloit Corp Inverted trailing blade
US3348526A (en) * 1964-03-27 1967-10-24 Crown Zellerbach Corp Coating apparatus for coating webs
US3358643A (en) * 1965-08-10 1967-12-19 Time Inc Means to bias resilient doctor blade
US3379171A (en) * 1964-08-17 1968-04-23 Weyerhaeuser Co Release agent coating apparatus
US3418970A (en) * 1964-11-02 1968-12-31 Black Clawson Co Paper coating apparatus
US3486482A (en) * 1966-12-30 1969-12-30 Westvaco Corp Apparatus for coating traveling webs
US3980046A (en) * 1975-08-11 1976-09-14 The Raymond Lee Organization, Inc. Paper hanger's paste applicator
US3993020A (en) * 1975-05-16 1976-11-23 Xerox Corporation Blade applicator assembly
US4019816A (en) * 1975-05-16 1977-04-26 Xerox Corporation Coating system having a composite applicator assembly provided with a reciprocating blade
US4125641A (en) * 1974-10-16 1978-11-14 Inventing S.A. Method for applying a coating composition onto a moving paperweb
US4222328A (en) * 1978-07-21 1980-09-16 Flex-O-Line Division Of Kenton Machine Works Doctor blade liquid applicator for metering rolls
FR2451418A1 (en) * 1979-03-14 1980-10-10 Centre Tech Ind Papier Web coating equipment for paper-making - has coating substance forced from tube under attached blade with pneumatic tube along tip
US4241691A (en) * 1978-08-30 1980-12-30 Monsanto Company Doctor blade holder
US4257343A (en) * 1973-11-16 1981-03-24 Billeruds Aktiebolag Coating apparatus with vacuum biased doctor blade
US4331713A (en) * 1979-03-14 1982-05-25 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Process and apparatus for the continuous coating of a sheet article, particularly a web of paper or paperboard
US4366682A (en) * 1980-03-15 1983-01-04 Eduard Kusters Apparatus for the continuous treatment of textile materials
US4387124A (en) * 1981-10-29 1983-06-07 International Business Machines Corporation Coating apparatus and method
US4445458A (en) * 1982-07-21 1984-05-01 E. I. Du Pont De Nemours And Company Beveled edge metered bead extrusion coating apparatus
FR2545736A1 (en) * 1983-05-12 1984-11-16 Waertsilae Oy Ab APPARATUS FOR COATING A SHEET
US4558658A (en) * 1983-02-21 1985-12-17 Jagenberg Ag Device for coating a continuous web
EP0198622A1 (en) * 1985-04-01 1986-10-22 Ecc International Limited Paper coating apparatus and method
AT382329B (en) * 1982-02-08 1987-02-10 Cons Paper Inc COATING DEVICE FOR COATING RUNNING PRODUCTS, IN PARTICULAR PAPER FILES
DE3902599A1 (en) * 1988-01-29 1989-08-03 Valmet Paper Machinery Inc DEVICE FOR COATING A PAPER COATING WITH A COATING MEASUREMENT
US4963397A (en) * 1988-03-24 1990-10-16 Consolidated Papers, Inc. Paper coating system and method
US5008133A (en) * 1990-06-06 1991-04-16 Herbet Albert J Method of coating a web with a coating mixture including microcapsules crushed by a back-up member
US5112653A (en) * 1989-07-03 1992-05-12 Consolidated Papers, Inc. Method of and apparatus for coating high speed traveling webs
DE29610446U1 (en) * 1996-06-14 1996-09-05 Voith Sulzer Papiermasch Gmbh Device for applying a liquid to a fibrous web
US5632815A (en) * 1989-07-03 1997-05-27 Consolidated Papers, Inc. Inverted blade metering unit
US6656529B1 (en) * 1998-05-19 2003-12-02 Eugene A. Pankake Pressure feed coating application system
US20050034659A1 (en) * 1998-05-19 2005-02-17 Pankake Eugene A Coating Apparatus and method
US20090295098A1 (en) * 1999-05-18 2009-12-03 Pankake Eugene A Coating apparatus and method

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US1361932A (en) * 1920-05-03 1920-12-14 Maurice Van Avermaete Device for applying gluten, coating material, or the like to a supportbase or underlayer
US2285531A (en) * 1939-01-18 1942-06-09 Rapinwax Paper Company Apparatus for applying surface coatings, as paint, to paper, as bread wrapping paper, etc.
US2328183A (en) * 1942-05-04 1943-08-31 Minnesota & Ontario Paper Co Coating apparatus
US2464771A (en) * 1946-04-09 1949-03-15 Interstate Folding Box Co Apparatus for coating webs
US2914788A (en) * 1957-02-22 1959-12-01 D S T Pattern And Engineering Doctor knives
US3070066A (en) * 1957-08-06 1962-12-25 Time Inc Coating apparatus having blade control means and releasable blade holder
US3030917A (en) * 1958-08-13 1962-04-24 Oxford Paper Co Coating of webs and the like
US3079889A (en) * 1959-06-03 1963-03-05 Black Clawson Co Paper machinery

Cited By (36)

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US3302610A (en) * 1963-10-10 1967-02-07 Beloit Corp Inverted trailing blade
US3348526A (en) * 1964-03-27 1967-10-24 Crown Zellerbach Corp Coating apparatus for coating webs
US3379171A (en) * 1964-08-17 1968-04-23 Weyerhaeuser Co Release agent coating apparatus
US3418970A (en) * 1964-11-02 1968-12-31 Black Clawson Co Paper coating apparatus
US3358643A (en) * 1965-08-10 1967-12-19 Time Inc Means to bias resilient doctor blade
US3486482A (en) * 1966-12-30 1969-12-30 Westvaco Corp Apparatus for coating traveling webs
US4257343A (en) * 1973-11-16 1981-03-24 Billeruds Aktiebolag Coating apparatus with vacuum biased doctor blade
US4125641A (en) * 1974-10-16 1978-11-14 Inventing S.A. Method for applying a coating composition onto a moving paperweb
US3993020A (en) * 1975-05-16 1976-11-23 Xerox Corporation Blade applicator assembly
US4019816A (en) * 1975-05-16 1977-04-26 Xerox Corporation Coating system having a composite applicator assembly provided with a reciprocating blade
US3980046A (en) * 1975-08-11 1976-09-14 The Raymond Lee Organization, Inc. Paper hanger's paste applicator
US4222328A (en) * 1978-07-21 1980-09-16 Flex-O-Line Division Of Kenton Machine Works Doctor blade liquid applicator for metering rolls
US4241691A (en) * 1978-08-30 1980-12-30 Monsanto Company Doctor blade holder
FR2451418A1 (en) * 1979-03-14 1980-10-10 Centre Tech Ind Papier Web coating equipment for paper-making - has coating substance forced from tube under attached blade with pneumatic tube along tip
US4331713A (en) * 1979-03-14 1982-05-25 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Process and apparatus for the continuous coating of a sheet article, particularly a web of paper or paperboard
US4366682A (en) * 1980-03-15 1983-01-04 Eduard Kusters Apparatus for the continuous treatment of textile materials
US4387124A (en) * 1981-10-29 1983-06-07 International Business Machines Corporation Coating apparatus and method
AT382329B (en) * 1982-02-08 1987-02-10 Cons Paper Inc COATING DEVICE FOR COATING RUNNING PRODUCTS, IN PARTICULAR PAPER FILES
US4445458A (en) * 1982-07-21 1984-05-01 E. I. Du Pont De Nemours And Company Beveled edge metered bead extrusion coating apparatus
US4558658A (en) * 1983-02-21 1985-12-17 Jagenberg Ag Device for coating a continuous web
FR2545736A1 (en) * 1983-05-12 1984-11-16 Waertsilae Oy Ab APPARATUS FOR COATING A SHEET
EP0198622A1 (en) * 1985-04-01 1986-10-22 Ecc International Limited Paper coating apparatus and method
DE3902599C2 (en) * 1988-01-29 2001-06-07 Valmet Paper Machinery Inc Device for coating a paper web with a coating compound
DE3902599A1 (en) * 1988-01-29 1989-08-03 Valmet Paper Machinery Inc DEVICE FOR COATING A PAPER COATING WITH A COATING MEASUREMENT
US4963397A (en) * 1988-03-24 1990-10-16 Consolidated Papers, Inc. Paper coating system and method
US5112653A (en) * 1989-07-03 1992-05-12 Consolidated Papers, Inc. Method of and apparatus for coating high speed traveling webs
US5632815A (en) * 1989-07-03 1997-05-27 Consolidated Papers, Inc. Inverted blade metering unit
US5008133A (en) * 1990-06-06 1991-04-16 Herbet Albert J Method of coating a web with a coating mixture including microcapsules crushed by a back-up member
WO1991018684A1 (en) * 1990-06-06 1991-12-12 Herbert Albert J Method of coating a web
DE29610446U1 (en) * 1996-06-14 1996-09-05 Voith Sulzer Papiermasch Gmbh Device for applying a liquid to a fibrous web
US6656529B1 (en) * 1998-05-19 2003-12-02 Eugene A. Pankake Pressure feed coating application system
US20040112283A1 (en) * 1998-05-19 2004-06-17 Pankake Eugene A. Pressure feed coating application system
US6837932B2 (en) 1998-05-19 2005-01-04 Pankake Eugene A Pressure feed coating application system
US20050034659A1 (en) * 1998-05-19 2005-02-17 Pankake Eugene A Coating Apparatus and method
US7559990B2 (en) 1998-05-19 2009-07-14 Eugene A Pankake Coating apparatus and method
US20090295098A1 (en) * 1999-05-18 2009-12-03 Pankake Eugene A Coating apparatus and method

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