US3499419A - Mechanical system for manufacturing pigment-coated paper - Google Patents

Mechanical system for manufacturing pigment-coated paper Download PDF

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Publication number
US3499419A
US3499419A US692208A US3499419DA US3499419A US 3499419 A US3499419 A US 3499419A US 692208 A US692208 A US 692208A US 3499419D A US3499419D A US 3499419DA US 3499419 A US3499419 A US 3499419A
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US
United States
Prior art keywords
web
roll
rolls
main
paper
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
US692208A
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English (en)
Inventor
Einar Bohmer
Tore Aarefjord
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.)
PAPIR IND FORSKNINGS INST
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PAPIR IND FORSKNINGS INST
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.)
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Publication date
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Publication of US3499419A publication Critical patent/US3499419A/en
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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
    • 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
    • D21H23/42—Paper being at least partly surrounded by the material on both sides
    • 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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • 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

Definitions

  • a device comprising two spaced main rollers with an intermediate roll arranged therebetween.
  • the intermediate roll is of a smaller diameter than the main rolls and intermediate roller is arranged so that the web passes through a nip between one of the main rollers and the inter-mediate roll.
  • the web is led in contact with the intermediate roll over a part of the circumference of the latter after the web is passed through the nip, so that there is obtained an abruptly moving of the web from the surface of the main roll which the web makes contact.
  • the intermediate roll is arranged for horizontal displacement on both sides of a center line between the main rolls in such a way that contact is maintained with the main rolls.
  • This invention deals with mechanical systems for manufacturing a paper coated on both sides.
  • Several different principles have previously been suggested and actually used in paper mills, one of the simplest being the size press.
  • the paper web in this press passes through a nip between two rolls, of which one is usually a steel roll and the other rubber covered.
  • the lower roll may rotate in a tray of coating color, which is transferred by means of the roll to the bottom side of the paper.
  • the coating color On the top side of the paper, the coating color may be sprayed either on the roll surface or directly on the paper web.
  • the size press may also be arranged with a vertical run of the paper, or the rolls may be positioned at different angles between 0 and 90, the latter angles meaning that the rolls are stacked vertically above each other.
  • the size press may give a satisfactory coated surface as long as the operating speed is low and the coating weight small.
  • An increase of the speed or the viscosity of the coating color may give an effect called orange peel which is a great disadvantage during the subsequent printing process.
  • This pattern is related to cavitation and viscoelastic phenomena occurring in the outgoing part of the nip, and the degree of this effect will increase when the cohesion of the coating color and consequently the viscosity is increased.
  • the geometry of the roll nip is also important, and it is known that roll diameter and take-01f angle will influence the results.
  • An object of this invention is to provide an apparatus which will not produce the orange peel effect while operating at speeds and with coating weights and material theretofore unusable.
  • FIG. 1 is a side view of the preferred embodiment of the invention.
  • FIG. 2 is a side view of a second embodiment of the invention.
  • size rolls A and B are here arranged out of engagement and between them a further roll is situated, the further roll having a substantially smaller diameter than the two main rolls and preferably a diameter of 3-6", the paper web being led through the nip between one of the main rolls and the further roll. In this way, the paper web is removed more abruptly from the rolls.
  • a small intermediate roll therefore is favorable only in such degree it is combined with a convenient guiding of the web when passing out of the nip.
  • the web preferably follows the small intermediate roll, but the invention specifies no fixed exit angle and an alternative web direction is also illustrated in FIG. 1.
  • the intermediate roll C in the embodiment shown can be made from hard rubber, steel or other suitable material.
  • the intermediate roll diameter r can vary between R/ 15 and R/ 13 (see FIG. 1) but preferably is between R/S and R/ 3. As mentioned above the diameter preferably is 3-6".
  • the rolls A and B can be conventional size rolls as to material as well as diameter.
  • the top roll may be grooved or smooth, and as example rolls with a diameter of 50 cm. may be mentioned, the one covered with hard rubber and the other made of steel, bronze or any other suitable material.
  • the intermediate roll must be horizontally displaceable on both sides of the nip depending on the speed, the Web direction and the composition of the coating mass. It is assumed that at all time there is physical contact between the intermediate roll C and the rolls A and B. As appears from FIG. 1, the rolls A and B rotate in the same direction and this is decided by the machine mounting. Roll C rotates in opposite direction.
  • a device for coating both sides of a paper web comprising two spaced main rolls of about the same size which are rotatable in the same direction, an inter-mediate roll of smaller diameter than the main rolls and rotatable in the opposite direction, said intermediate roll having a diameter between /3 and /s the diameter of the main rolls, said intermediate roll being arranged between the main rolls and in contact therewith so that the web passes through a nip between one of the main rolls and said intermediate roll, means whereby the web is led in contact with the intermediate roll over a part of the circumference of the latter after the web has passed through the nip, whereby there is obtained an abrupt removing of the web from the surface of the main roll with which the web makes contact, and means for applying a coating material onto both sides of the web before removal of the web from the surface of the main roll, the latter means comprising a vessel containing coating material, said main roll with which the web makes contact being immersed in said coating material in the vessel to apply coating material to one side of the web, and spray means
  • a device comprising means whereby the intermediate roll can be displaced horizontally on both sides of a center line between said main rolls such that contact is maintained between at least one of the main rolls and the intermediate roll.

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  • Paper (AREA)
US692208A 1966-12-21 1967-12-20 Mechanical system for manufacturing pigment-coated paper Expired - Lifetime US3499419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO166094A NO115645B (sv) 1966-12-21 1966-12-21

Publications (1)

Publication Number Publication Date
US3499419A true US3499419A (en) 1970-03-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US692208A Expired - Lifetime US3499419A (en) 1966-12-21 1967-12-20 Mechanical system for manufacturing pigment-coated paper

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US (1) US3499419A (sv)
DE (1) DE1696247A1 (sv)
NO (1) NO115645B (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672705A (en) * 1983-10-07 1987-06-16 Triatex International Ag Process for applying controlled amounts of liquids to a receptive material web
US6183079B1 (en) 1998-06-11 2001-02-06 Lexmark International, Inc. Coating apparatus for use in an ink jet printer
US20030161963A1 (en) * 2002-02-26 2003-08-28 Heink Philip Jerome Appartus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US20030160835A1 (en) * 2002-02-27 2003-08-28 Barry Raymond Jay System and method of fluid level regulating for a media coating system
US20030165630A1 (en) * 2002-02-28 2003-09-04 Baker Ronald Willard System and method of coating print media in an inkjet printer
US20150145166A1 (en) * 2012-05-11 2015-05-28 Trützschler Nonwovens Gmbh Foulard for applying a binder to a gauze

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989036A (en) * 1932-07-18 1935-01-22 Champion Coated Paper Company Paper coating
US2041419A (en) * 1929-08-01 1936-05-19 Patent & Licensing Corp Apparatus for making roofing
US2406057A (en) * 1944-11-30 1946-08-20 Minnesota & Ontario Paper Co Coating apparatus
US2593149A (en) * 1946-10-17 1952-04-15 Champion Paper & Fibre Co Apparatus for embossing paper
US2676537A (en) * 1950-10-20 1954-04-27 Kanitz Georges Intaglio printing machine
US2977247A (en) * 1958-04-08 1961-03-28 Packaging Corp America Adhesive applicator means particularly adapted for corrugating machines
US3017828A (en) * 1959-03-12 1962-01-23 Miehle Goss Dexter Inc Doctor blade mechanism
US3116166A (en) * 1958-12-11 1963-12-31 Halley & Sons Ltd James Apparatus for coating a moving web

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041419A (en) * 1929-08-01 1936-05-19 Patent & Licensing Corp Apparatus for making roofing
US1989036A (en) * 1932-07-18 1935-01-22 Champion Coated Paper Company Paper coating
US2406057A (en) * 1944-11-30 1946-08-20 Minnesota & Ontario Paper Co Coating apparatus
US2593149A (en) * 1946-10-17 1952-04-15 Champion Paper & Fibre Co Apparatus for embossing paper
US2676537A (en) * 1950-10-20 1954-04-27 Kanitz Georges Intaglio printing machine
US2977247A (en) * 1958-04-08 1961-03-28 Packaging Corp America Adhesive applicator means particularly adapted for corrugating machines
US3116166A (en) * 1958-12-11 1963-12-31 Halley & Sons Ltd James Apparatus for coating a moving web
US3017828A (en) * 1959-03-12 1962-01-23 Miehle Goss Dexter Inc Doctor blade mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672705A (en) * 1983-10-07 1987-06-16 Triatex International Ag Process for applying controlled amounts of liquids to a receptive material web
US6183079B1 (en) 1998-06-11 2001-02-06 Lexmark International, Inc. Coating apparatus for use in an ink jet printer
US20030161963A1 (en) * 2002-02-26 2003-08-28 Heink Philip Jerome Appartus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US6706118B2 (en) 2002-02-26 2004-03-16 Lexmark International, Inc. Apparatus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US20030160835A1 (en) * 2002-02-27 2003-08-28 Barry Raymond Jay System and method of fluid level regulating for a media coating system
US20030165630A1 (en) * 2002-02-28 2003-09-04 Baker Ronald Willard System and method of coating print media in an inkjet printer
US6955721B2 (en) 2002-02-28 2005-10-18 Lexmark International, Inc. System and method of coating print media in an inkjet printer
US20150145166A1 (en) * 2012-05-11 2015-05-28 Trützschler Nonwovens Gmbh Foulard for applying a binder to a gauze

Also Published As

Publication number Publication date
NO115645B (sv) 1968-11-04
DE1696247A1 (de) 1971-11-18

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