US2229621A - Method of coating paper - Google Patents

Method of coating paper Download PDF

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Publication number
US2229621A
US2229621A US212877A US21287738A US2229621A US 2229621 A US2229621 A US 2229621A US 212877 A US212877 A US 212877A US 21287738 A US21287738 A US 21287738A US 2229621 A US2229621 A US 2229621A
Authority
US
United States
Prior art keywords
paper
coating
web
coating composition
filter cake
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
US212877A
Other languages
English (en)
Inventor
Donald B Bradner
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.)
CHAMSION PAPER AND FIBRE Co
CHAMSION PAPER AND FIBRE COMPA
Original Assignee
CHAMSION PAPER AND FIBRE COMPA
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
Priority to BE434396D priority Critical patent/BE434396A/xx
Priority to NL66159D priority patent/NL66159C/xx
Application filed by CHAMSION PAPER AND FIBRE COMPA filed Critical CHAMSION PAPER AND FIBRE COMPA
Priority to US212877A priority patent/US2229621A/en
Priority to GB19546/38A priority patent/GB499732A/en
Priority to FR847305D priority patent/FR847305A/fr
Application granted granted Critical
Publication of US2229621A publication Critical patent/US2229621A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • 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
    • 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
    • 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
    • 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
    • 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
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod

Definitions

  • the coating mechanism for coating either side of the web may be installed on the paper machine at the wet end between the press section and the dryers, or it may be installed at different locations in the dryer section. If installed at the wet end of the machine it is preferable to apply coating composition to the wire side only.
  • the coating composition is applied in suflicient quantity to form a substantially continuous layer of coating over the surface of the web on the felt side at this point, the .urface of the resulting coating is generally marred by a great number of small holes in the coating, varying in size from those visible under a hand lens to those which are easily visible to the naked eye. These holes make the paper unsuitable for high grade printing. but do not prohibit its use for other purposes.
  • Fig. 3 shows diagrammatically what probably takes place during the formation of the filter cake and the removal of the excess coating composition. As here shown, it indicates the paper web with its rough and porous surface. Upon the application to this surface of the coating composition there is a rapid absorption of water from the applied coating immediately adjacent the paper web, forming a layer of filter cake as illustrated at b. The absorption of the water by the paper is much more rapid than the equalization of the water content in the coating layer throughout its total thickness and hence the liquid content of the coating composition in the outer portion of the applied layer is altered but little for an apprecable time, hence the coating in excess of that necessary to form the filter cake forms an outer layer 0 overlying the filter cake.
  • the final product was a coated paper having a fine, bright color with a smooth, even surface of good ink receptivity and which gave excellent printing results with fine half tones and with uniform solids either in black or colors. It was fully equivalent to coated paper of a similar grade and weight to which the coating was applied by the usual two-step coating operation.
  • the coating composition as applied consisted of 1,000 pounds of standard quality coating clay and 120 pounds of casein (dissolved in sodium carbonate solution) and water to give 40% solids.
  • the paper then passed into the dryer section of the paper machine, and about half way through the dryer section the felt side was processed in a similar manner with the same coating composition.
  • the quantity of coating (dry basis, per ream) applied to the wire side was 6 to 7 pounds and the weight applied to the felt side was 6 pounds.
  • the printing qualities of the paper are so improved that a coated paper can be produced at a speed of, say, 400 feet per minute, which is superior in printing qualities to an uncoated scribed, it may also be employed for coating prefabricated paper as it leaves the paper machine by the simple expedient of running the web through the coating apparatus and then through an additional bank of drying cylinders.
  • the paper may be wound into rolls in the usual manner and then subsequently coated by my new process and dried on internally heated drying cylinders as a separate operation.
  • the process necessarily limited to the use of aqueous coating compositions; non-aqueous coating compositions may also be used.
  • Process of making coated paper which comprises forming a substantially solid layer of coating composition by applying an excess of a fluent coating composition comprising solids in liquid suspension to a travelling web of paper absorptive to the liquid of the composition, maintaining the face of the traveling web against disturbance to allow a firm filter cake to form on the paper by the absorption of liquid of the coating composition wiping off substantially all the fluent coating down to the filter cake, and thereafter contacting the wiped surface of the filter cake with a heated drying cylinder.

Landscapes

  • Paper (AREA)
US212877A 1938-06-10 1938-06-10 Method of coating paper Expired - Lifetime US2229621A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE434396D BE434396A (sv) 1938-06-10
NL66159D NL66159C (sv) 1938-06-10
US212877A US2229621A (en) 1938-06-10 1938-06-10 Method of coating paper
GB19546/38A GB499732A (en) 1938-06-10 1938-07-01 Improvements in method of coating paper
FR847305D FR847305A (fr) 1938-06-10 1938-12-09 Procédé de fabrication du papier couché

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US212877A US2229621A (en) 1938-06-10 1938-06-10 Method of coating paper

Publications (1)

Publication Number Publication Date
US2229621A true US2229621A (en) 1941-01-21

Family

ID=22792752

Family Applications (1)

Application Number Title Priority Date Filing Date
US212877A Expired - Lifetime US2229621A (en) 1938-06-10 1938-06-10 Method of coating paper

Country Status (5)

Country Link
US (1) US2229621A (sv)
BE (1) BE434396A (sv)
FR (1) FR847305A (sv)
GB (1) GB499732A (sv)
NL (1) NL66159C (sv)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731889A (en) * 1956-01-24 Method of and machine for producing
DE958901C (de) * 1951-04-19 1957-02-28 Licentia Gmbh Einrichtung zum Lackieren bzw. Impraegnieren flaechenfoermiger Bahnen, beispielsweise aus Papier
US2920698A (en) * 1955-10-12 1960-01-12 Beloit Iron Works Paper machine coating arrangement
US2970564A (en) * 1955-12-23 1961-02-07 Champion Paper & Fibre Co Apparatus for coating paper
US3158498A (en) * 1961-11-13 1964-11-24 Kimberly Clark Co Method of blade-coating utilizing high angles of flexible blades
US3276896A (en) * 1959-04-13 1966-10-04 Rca Corp Electrostatic printing
JPS505635B1 (sv) * 1970-06-23 1975-03-05
US4409265A (en) * 1981-01-21 1983-10-11 Mannesmann Aktiengesellschaft Method and apparatus for the one-sided coating of continuous metal strip
US5228920A (en) * 1991-06-03 1993-07-20 Thompson Iii Ernest E Film coating unit
EP0617168A1 (de) * 1993-03-20 1994-09-28 J.M. Voith GmbH Dosiereinrichtung zur Beschichtung laufender Bahnen, vorzugsweise aus Papier oder Karton
US20020090457A1 (en) * 2001-01-10 2002-07-11 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods
US20020192360A1 (en) * 2001-04-24 2002-12-19 3M Innovative Properties Company Electrostatic spray coating apparatus and method
US20030003238A1 (en) * 2001-01-10 2003-01-02 Leonard William K. Sheet coater
US6579574B2 (en) 2001-04-24 2003-06-17 3M Innovative Properties Company Variable electrostatic spray coating apparatus and method
US20030230382A1 (en) * 2001-11-14 2003-12-18 Westvaco Corporation Method for releasing laminated materials
US20040177939A1 (en) * 2001-07-03 2004-09-16 Juha Lipponen Method and apparatus for producing sized paper of board
US20050003083A1 (en) * 2001-07-03 2005-01-06 Juha Lipponen Method for producing sized paper or cardboard
US20090095372A1 (en) * 2006-04-11 2009-04-16 Lutz Deckert Beverage bottling plant, a labeling machine for use in a beverage bottling plant, and a glue application device for use with a labeling machine in a beverage bottling plant

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731889A (en) * 1956-01-24 Method of and machine for producing
DE958901C (de) * 1951-04-19 1957-02-28 Licentia Gmbh Einrichtung zum Lackieren bzw. Impraegnieren flaechenfoermiger Bahnen, beispielsweise aus Papier
US2920698A (en) * 1955-10-12 1960-01-12 Beloit Iron Works Paper machine coating arrangement
US2970564A (en) * 1955-12-23 1961-02-07 Champion Paper & Fibre Co Apparatus for coating paper
US3276896A (en) * 1959-04-13 1966-10-04 Rca Corp Electrostatic printing
US3158498A (en) * 1961-11-13 1964-11-24 Kimberly Clark Co Method of blade-coating utilizing high angles of flexible blades
JPS505635B1 (sv) * 1970-06-23 1975-03-05
US4409265A (en) * 1981-01-21 1983-10-11 Mannesmann Aktiengesellschaft Method and apparatus for the one-sided coating of continuous metal strip
US5228920A (en) * 1991-06-03 1993-07-20 Thompson Iii Ernest E Film coating unit
EP0617168A1 (de) * 1993-03-20 1994-09-28 J.M. Voith GmbH Dosiereinrichtung zur Beschichtung laufender Bahnen, vorzugsweise aus Papier oder Karton
US20030003238A1 (en) * 2001-01-10 2003-01-02 Leonard William K. Sheet coater
US6737113B2 (en) 2001-01-10 2004-05-18 3M Innovative Properties Company Method for improving the uniformity of a wet coating on a substrate using pick-and-place devices
WO2002055220A1 (en) 2001-01-10 2002-07-18 3M Innovative Properties Company Coating device and method using wire-wound rods
US6899922B2 (en) 2001-01-10 2005-05-31 3M Innovative Properties Company Method for coating a limited length substrate using rotating support and at least one pick-and-place roll
US20020090457A1 (en) * 2001-01-10 2002-07-11 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods
US6878408B2 (en) 2001-01-10 2005-04-12 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods
US7311780B2 (en) 2001-01-10 2007-12-25 3M Innovative Properties Company Coating device and method using pick-and-place devices having equal or substantially equal periods
US6855374B2 (en) 2001-01-10 2005-02-15 3M Innovative Properties Company Method for improving the uniformity of a wet coating on a substrate using at least two wire-wound rods
US7279042B2 (en) 2001-01-10 2007-10-09 3M Innovative Properties Co Wet coating improvement station
US20020094384A1 (en) * 2001-01-10 2002-07-18 Leonard William K. Coating device and method using wire-wound rods
US20040187773A1 (en) * 2001-01-10 2004-09-30 3M Innovative Properties Company Method for improving the uniformity of a wet coating on a substrate using pick-and-place devices
US20040185180A1 (en) * 2001-04-24 2004-09-23 3M Innovative Properties Company Electrostatic spray coating apparatus and method
US6969540B2 (en) 2001-04-24 2005-11-29 3M Innovative Properties Company Electrostatic spray coating apparatus and method
US6579574B2 (en) 2001-04-24 2003-06-17 3M Innovative Properties Company Variable electrostatic spray coating apparatus and method
US20020192360A1 (en) * 2001-04-24 2002-12-19 3M Innovative Properties Company Electrostatic spray coating apparatus and method
US7045036B2 (en) * 2001-07-03 2006-05-16 Metso Paper, Inc. Method and apparatus for producing sized paper of board
US20050003083A1 (en) * 2001-07-03 2005-01-06 Juha Lipponen Method for producing sized paper or cardboard
US20040177939A1 (en) * 2001-07-03 2004-09-16 Juha Lipponen Method and apparatus for producing sized paper of board
US20030230382A1 (en) * 2001-11-14 2003-12-18 Westvaco Corporation Method for releasing laminated materials
US20090095372A1 (en) * 2006-04-11 2009-04-16 Lutz Deckert Beverage bottling plant, a labeling machine for use in a beverage bottling plant, and a glue application device for use with a labeling machine in a beverage bottling plant
US8028496B2 (en) * 2006-04-11 2011-10-04 Khs Ag Glue application device for a labeling machine

Also Published As

Publication number Publication date
BE434396A (sv)
FR847305A (fr) 1939-10-06
GB499732A (en) 1939-01-27
NL66159C (sv)

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