US20100122787A1 - Application of chemical aids after a headbox of a papermaking process - Google Patents

Application of chemical aids after a headbox of a papermaking process Download PDF

Info

Publication number
US20100122787A1
US20100122787A1 US12/540,068 US54006809A US2010122787A1 US 20100122787 A1 US20100122787 A1 US 20100122787A1 US 54006809 A US54006809 A US 54006809A US 2010122787 A1 US2010122787 A1 US 2010122787A1
Authority
US
United States
Prior art keywords
papermaking process
chemicals
sizing
headbox
sheet
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.)
Abandoned
Application number
US12/540,068
Inventor
Tommy Jacobson
Aleksandar Todorovie
Kai Kokko
James L. Thomas
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.)
ChampionX LLC
Original Assignee
Nalco Co LLC
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 claimed from US12/274,682 external-priority patent/US20100122786A1/en
Application filed by Nalco Co LLC filed Critical Nalco Co LLC
Priority to US12/540,068 priority Critical patent/US20100122787A1/en
Assigned to NALCO COMPANY reassignment NALCO COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JACOBSON, TOMMY, KOKKO, KAJ A, TODOROVIC, ALEKSANDER, THOMAS, JAMES L.
Publication of US20100122787A1 publication Critical patent/US20100122787A1/en
Priority to PCT/US2010/045116 priority patent/WO2011019786A2/en
Abandoned legal-status Critical Current

Links

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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D21H17/15—Polycarboxylic acids, e.g. maleic acid
    • D21H17/16—Addition products thereof with hydrocarbons
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/62—Rosin; Derivatives thereof
    • 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
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper

Definitions

  • Sizing chemicals play an important role in the papermaking process, e.g. prevents the penetration of liquids into a paper sheet and/or improves the receipt of ink onto a paper sheet. A more efficacious way of applying sizing agents is sought by the papermaking industry.
  • the present invention provides for a method of applying one or more chemicals to a papermaking process comprising: applying said chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals include at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
  • ASA alkenyl succinic anhydride
  • ALD alkyl ketene dimmer
  • SMA styrene-maleic anhydride
  • EAA ethylene-acrylic acid
  • the present invention also provides for a method of improving sheet and/or web properties formed from a cellulosic suspension of a papermaking process comprising: applying one or more chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals are selected from the group consisting of: sizing chemicals, internal sizing chemicals, surface sizing chemicals, rosin, alkenyl succinic anhydride (ASA), alkyl ketene dimmer (AKD), styrene-maleic anhydride (SMA), and ethylene-acrylic acid (EAA); optionally performing one or more measurements of the sizing properties of a sheet and/or web of said papermaking process; optionally wherein a plurality of said measurements provide a cross-directional profile of said web and/or said sheet properties in said papermaking process; and optionally controlling said web and/or sheet properties by adjusting the application of said chemicals to the papermaking process in response to said one or more measurements.
  • ASA alkenyl succinic anhydr
  • the present invention also provides for a method to activate a papermaking process chemical program containing a plurality of chemical components that are applied to said papermaking process comprised of: applying a first chemical component before a headbox slice opening and wherein a second chemical component is applied between a headbox slice opening and a first drainage element of said papermaking process, wherein said first chemical component contains at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
  • ASA alkenyl succinic anhydride
  • ALD alkyl ketene dimmer
  • SMA styrene-maleic anhydride
  • EAA ethylene-acrylic acid
  • Papermaking process /“papermaking processes” refer to a method(s) of making any kind of paper products (e.g. paper, tissue, board, etc.) from pulp comprising forming an aqueous cellulosic papermaking furnish, draining the furnish to form a sheet and drying the sheet.
  • the steps of forming the papermaking furnish, draining and drying may be carried out in any manner known to those skilled in the art.
  • the papermaking process/processes may also include a pulping stage, e.g. making pulp from wood and/or non-wood raw material and bleaching stage, e.g. chemical treatment of the pulp for brightness improvement.
  • Weight end refers to papermaking process operations in the approach system, sheet forming section and pressing section.
  • Sheets refer to sheet(s) formed as a result of or during a papermaking process/papermaking processes.
  • the sizing chemicals are applied between a headbox slice opening and a first drainage element of a papermaking process.
  • the chemicals are applied to a papermaking process location that is proximate to a headbox slice opening.
  • proximate refers to a distance from 0 cm to about 20 cm.
  • proximate refers to a distance from 0 cm to about 10 cm.
  • the papermaking process contains a foudrinier paper machine.
  • the papermaking process contains a gap forming paper machine.
  • the application of the sizing chemicals to the papermaking process can take place in various ways, e.g. non-contact ways or through a non-contact applicator, which would be appreciated by one of ordinary skill in the art.
  • the chemicals are applied to the papermaking process by a spray bar, optionally wherein the spray bar is installed onto a headbox top slice cover.
  • the chemicals are applied to the papermaking process by a curtain applicator.
  • the chemicals are applied to a papermaking process by using a slice blade, which is associated with the papermaking process.
  • the methodology further comprises adding sizing chemicals to an additional area of the papermaking process aside from between a headbox slice opening and a first drainage element.
  • These areas include typical application areas, including, but not limited to, the dilution headbox stream or channels inside the headbox installed hardware.
  • the application of sizing agents between a headbox slice opening and a first drainage element of said papermaking process can be utilized to improve sheet qualities, e.g. the improvement in sheet and/or web properties can result in a given amount of chemicals imparting a better sheet/web property compared to a situation when the chemicals are added only to an area before the free jet, e.g. into dilution lines leading to the headbox and/or the headbox itself.
  • This disclosure can encompass a method of improving sheet and/or web properties formed from a cellulosic suspension of a papermaking process.
  • the method comprises: applying one or more chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals are selected from the group consisting of: sizing chemicals, internal sizing chemicals, surface sizing chemicals, rosin, alkenyl succinic anhydride (ASA), alkyl ketene dimmer (AKD), styrene-maleic anhydride (SMA), and ethylene-acrylic acid (EAA); optionally performing one or more measurements of the sizing properties of a sheet and/or web of said papermaking process; optionally wherein a plurality of said measurements provide a cross-directional profile of said web and/or said sheet properties in said papermaking process; and optionally controlling said web and/or sheet properties by adjusting the application of said chemicals to the papermaking process in response to said one or more measurements.
  • ASA alkenyl succinic
  • the chemicals are applied to a papermaking process location that is proximate to a headbox slice opening.
  • proximate refers to a distance from 0 cm to about 20 cm. In a further embodiment, proximate refers to a distance from 0 cm to 10 cm.
  • the chemicals are applied to a headbox free jet of a papermaking process.
  • a free jet of a papermaking process e.g. a free jet is the fluid that flows out from the headbox, typically the free jet is 5 cm in length from the headbox and can be 2 cm in height, depending upon the slice opening that is associated with the headbox.
  • the papermaking process contains a foudrinier paper machine.
  • the papermaking process contains a gap forming paper machine.
  • the application of the chemicals to the papermaking process can take place in various ways, e.g. non-contact ways or through a non-contact applicator, which would be appreciated by one of ordinary skill in the art.
  • the chemicals are applied to said papermaking process by a spray bar, optionally wherein the spray bar is installed onto a headbox top slice cover.
  • the chemicals are applied to said papermaking process by a curtain applicator.
  • the chemicals are applied to a papermaking process by using a slice blade, which is associated with the papermaking process.
  • the methodology further comprises adding chemicals to an additional area of the papermaking process aside from between a headbox slice opening and a first drainage element.
  • These areas include typical application areas, including, but not limited to, the dilution headbox stream or channels inside the headbox installed hardware of said papermaking process.
  • the methodology provides for performing the measurement of the sizing properties of a forming section and/or formation properties of the sheet and/or web and optionally wherein a plurality of said measurement(s) provide a cross-directional profile of said web and/or said sheet properties in said papermaking process.
  • the plurality of measurements of the sheet properties is practically done by taking a dry-sheet CD strip from the reel and the properties are measured in the lab.
  • the web profile allows an operator to control the distribution of chemicals added to a web/sheet and pinpoint the application of chemical in one area over the other to produce a sheet that has an even application of chemicals, e.g. sizing chemicals, applied to it.
  • the basis weight CD profile is controlled.
  • the ash CD profile is controlled.
  • the sheet formation CD profile is controlled.
  • the sheet permeability CD profile is controlled.
  • the present invention also provides for a method to activate a papermaking process chemical program containing a plurality of chemical components that are applied to said papermaking process comprised of: applying a first chemical component before a headbox slice opening and wherein a second chemical component is applied between a headbox slice opening and a first drainage element of said papermaking process, wherein said first chemical component contains at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid BAA).
  • ASA alkenyl succinic anhydride
  • ALD alkyl ketene dimmer
  • SMA styrene-maleic anhydride
  • ethylene-acrylic acid BAA ethylene-acrylic acid BAA
  • the second chemical component is applied to a forming wire that contains a papermaking furnish and wherein said application is optionally applied across the whole forming wire width.
  • the second component is at least one of the following: alum or PAC.

Abstract

A method for improving sizing efficacy, paper machine performance and sheet properties formed during a papermaking process is disclosed. The methodology includes the following steps: (a) applying one or more sizing chemicals to the papermaking process to a point between after the headbox and on or before the first drainage element of a papermaking process.

Description

    CROSS REFERENCE TO RELATED APPLICATION
  • This application is a continuation-in-part of U.S. Ser. No. 12/274,682, which is herein incorporated by reference.
    • BACKGROUND OF THE INVENTION
  • Sizing chemicals play an important role in the papermaking process, e.g. prevents the penetration of liquids into a paper sheet and/or improves the receipt of ink onto a paper sheet. A more efficacious way of applying sizing agents is sought by the papermaking industry.
    • SUMMARY OF THE INVENTION
  • The present invention provides for a method of applying one or more chemicals to a papermaking process comprising: applying said chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals include at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
  • The present invention also provides for a method of improving sheet and/or web properties formed from a cellulosic suspension of a papermaking process comprising: applying one or more chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals are selected from the group consisting of: sizing chemicals, internal sizing chemicals, surface sizing chemicals, rosin, alkenyl succinic anhydride (ASA), alkyl ketene dimmer (AKD), styrene-maleic anhydride (SMA), and ethylene-acrylic acid (EAA); optionally performing one or more measurements of the sizing properties of a sheet and/or web of said papermaking process; optionally wherein a plurality of said measurements provide a cross-directional profile of said web and/or said sheet properties in said papermaking process; and optionally controlling said web and/or sheet properties by adjusting the application of said chemicals to the papermaking process in response to said one or more measurements.
  • The present invention also provides for a method to activate a papermaking process chemical program containing a plurality of chemical components that are applied to said papermaking process comprised of: applying a first chemical component before a headbox slice opening and wherein a second chemical component is applied between a headbox slice opening and a first drainage element of said papermaking process, wherein said first chemical component contains at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
    • DETAILED DESCRIPTION OF THE INVENTION Definitions
  • “Papermaking process”/“papermaking processes” refer to a method(s) of making any kind of paper products (e.g. paper, tissue, board, etc.) from pulp comprising forming an aqueous cellulosic papermaking furnish, draining the furnish to form a sheet and drying the sheet. The steps of forming the papermaking furnish, draining and drying may be carried out in any manner known to those skilled in the art. The papermaking process/processes may also include a pulping stage, e.g. making pulp from wood and/or non-wood raw material and bleaching stage, e.g. chemical treatment of the pulp for brightness improvement.
  • “Wet end” refers to papermaking process operations in the approach system, sheet forming section and pressing section.
  • “Sheet”/“sheets” refer to sheet(s) formed as a result of or during a papermaking process/papermaking processes.
  • The selection and application scheme of sizing chemicals, which is appropriate for a papermaking process, would be appreciated by one of ordinary skill in the art. By choosing various sizing chemistries and schemes for applying these chemistries the sheets structural and/or physical properties can be controlled.
  • How much sizing chemicals are added to a papermaking process depends on various factors, which would be appreciated by one of ordinary skill in the art. For example, factors such as the type of papermaking process, e.g. board, paper sheet, or tissue may impact the amount of chemistry added to a papermaking process.
    • A. Effective Application of Sizing Chemicals
  • As stated above, the sizing chemicals are applied between a headbox slice opening and a first drainage element of a papermaking process.
  • In one embodiment, the chemicals are applied to a papermaking process location that is proximate to a headbox slice opening.
  • In a further embodiment, proximate refers to a distance from 0 cm to about 20 cm.
  • In a further embodiment, proximate refers to a distance from 0 cm to about 10 cm.
  • In another embodiment, the papermaking process contains a foudrinier paper machine.
  • In another embodiment, the papermaking process contains a gap forming paper machine.
  • The application of the sizing chemicals to the papermaking process can take place in various ways, e.g. non-contact ways or through a non-contact applicator, which would be appreciated by one of ordinary skill in the art.
  • In one embodiment, the chemicals are applied to the papermaking process by a spray bar, optionally wherein the spray bar is installed onto a headbox top slice cover.
  • In another embodiment, the chemicals are applied to the papermaking process by a curtain applicator.
  • In another embodiment, the chemicals are applied to a papermaking process by using a slice blade, which is associated with the papermaking process.
  • In another embodiment the methodology further comprises adding sizing chemicals to an additional area of the papermaking process aside from between a headbox slice opening and a first drainage element. These areas include typical application areas, including, but not limited to, the dilution headbox stream or channels inside the headbox installed hardware.
    • B. Improving Sheet and Web Quality
  • The application of sizing agents between a headbox slice opening and a first drainage element of said papermaking process can be utilized to improve sheet qualities, e.g. the improvement in sheet and/or web properties can result in a given amount of chemicals imparting a better sheet/web property compared to a situation when the chemicals are added only to an area before the free jet, e.g. into dilution lines leading to the headbox and/or the headbox itself.
  • This disclosure, therefore, can encompass a method of improving sheet and/or web properties formed from a cellulosic suspension of a papermaking process. The method comprises: applying one or more chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals are selected from the group consisting of: sizing chemicals, internal sizing chemicals, surface sizing chemicals, rosin, alkenyl succinic anhydride (ASA), alkyl ketene dimmer (AKD), styrene-maleic anhydride (SMA), and ethylene-acrylic acid (EAA); optionally performing one or more measurements of the sizing properties of a sheet and/or web of said papermaking process; optionally wherein a plurality of said measurements provide a cross-directional profile of said web and/or said sheet properties in said papermaking process; and optionally controlling said web and/or sheet properties by adjusting the application of said chemicals to the papermaking process in response to said one or more measurements.
  • In one embodiment, the chemicals are applied to a papermaking process location that is proximate to a headbox slice opening. In a further embodiment, proximate refers to a distance from 0 cm to about 20 cm. In a further embodiment, proximate refers to a distance from 0 cm to 10 cm.
  • In another embodiment, the chemicals are applied to a headbox free jet of a papermaking process. One of ordinary skill in the art would appreciate the scope of what is meant by a free jet of a papermaking process, e.g. a free jet is the fluid that flows out from the headbox, typically the free jet is 5 cm in length from the headbox and can be 2 cm in height, depending upon the slice opening that is associated with the headbox.
  • In another embodiment, the papermaking process contains a foudrinier paper machine.
  • In another embodiment, the papermaking process contains a gap forming paper machine.
  • The application of the chemicals to the papermaking process can take place in various ways, e.g. non-contact ways or through a non-contact applicator, which would be appreciated by one of ordinary skill in the art.
  • In one embodiment, the chemicals are applied to said papermaking process by a spray bar, optionally wherein the spray bar is installed onto a headbox top slice cover.
  • In another embodiment, the chemicals are applied to said papermaking process by a curtain applicator.
  • In another embodiment, the chemicals are applied to a papermaking process by using a slice blade, which is associated with the papermaking process.
  • In another embodiment, the methodology further comprises adding chemicals to an additional area of the papermaking process aside from between a headbox slice opening and a first drainage element. These areas include typical application areas, including, but not limited to, the dilution headbox stream or channels inside the headbox installed hardware of said papermaking process.
  • In another embodiment, the methodology provides for performing the measurement of the sizing properties of a forming section and/or formation properties of the sheet and/or web and optionally wherein a plurality of said measurement(s) provide a cross-directional profile of said web and/or said sheet properties in said papermaking process.
  • In a further embodiment, the plurality of measurements of the sheet properties (e.g. formation, ash, and air permeability) is practically done by taking a dry-sheet CD strip from the reel and the properties are measured in the lab.
  • In another embodiment, the web profile allows an operator to control the distribution of chemicals added to a web/sheet and pinpoint the application of chemical in one area over the other to produce a sheet that has an even application of chemicals, e.g. sizing chemicals, applied to it.
  • In a further embodiment, the basis weight CD profile is controlled.
  • In a further embodiment, the ash CD profile is controlled.
  • In a further embodiment, the sheet formation CD profile is controlled.
  • In a further embodiment, the sheet permeability CD profile is controlled.
    • C. Program Management
  • As stated above, the present invention also provides for a method to activate a papermaking process chemical program containing a plurality of chemical components that are applied to said papermaking process comprised of: applying a first chemical component before a headbox slice opening and wherein a second chemical component is applied between a headbox slice opening and a first drainage element of said papermaking process, wherein said first chemical component contains at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid BAA).
  • In one embodiment, the second chemical component is applied to a forming wire that contains a papermaking furnish and wherein said application is optionally applied across the whole forming wire width.
  • In another embodiment, the second component is at least one of the following: alum or PAC.

Claims (12)

1. A method of applying one or more chemicals to a papermaking process comprising:
applying said chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals include at least one of the following:
sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
2. The method of claim 1, wherein said chemicals are applied to a papermaking process location that is proximate to a headbox slice opening.
3. The method of claim 2, wherein said proximate refers to a distance from 0 cm to about 20 cm.
4. The method of claim 2, wherein said proximate refers to a distance from 0 cm to about 10 cm.
5. The method of claim 1, wherein said papermaking process contains a foudrinier paper machine.
6. The method of claim 1, wherein said papermaking process contains a gap forming paper machine.
7. The method of claim 1, wherein said chemicals are applied to said papermaking process by a spray bar, optionally wherein the spray bar is installed onto a headbox top slice cover.
8. The method of claim 1, wherein said chemicals are applied to a papermaking process by using a slice blade, which is associated with the papermaking process.
9. A method of improving sheet and/or web properties formed from a cellulosic suspension of a papermaking process: applying one or more chemicals between a headbox slice opening and a first drainage element of said papermaking process, wherein said chemicals are selected from the group consisting of: sizing chemicals, internal sizing chemicals, surface sizing chemicals, rosin, alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD), styrene-maleic anhydride (SMA), and ethylene-acrylic acid (EAA); optionally performing one or more measurements of the sizing properties of a sheet and/or web of said papermaking process; optionally wherein a plurality of said measurements provide a cross-directional profile of said web and/or said sheet properties in said papermaking process; and optionally controlling said web and/or sheet properties by adjusting the application of said chemicals to the papermaking process in response to said one or more measurements.
10. A method to activate a papermaking process chemical program containing a plurality of chemical components that are applied to said papermaking process comprised of: applying a first chemical component before a headbox slice opening and wherein a second chemical component is applied between a headbox slice opening and a first drainage element of said papermaking process, wherein said first chemical component contains at least one of the following: sizing chemicals; internal sizing chemicals; surface sizing chemicals; rosin; alkenyl succinic anhydride (ASA); alkyl ketene dimmer (AKD); styrene-maleic anhydride (SMA); and ethylene-acrylic acid (EAA).
11. The method of claim 10, wherein said second chemical component is applied to a forming wire that contains a papermaking furnish and wherein said application is optionally applied across the whole forming wire width.
12. The method of claim 10, wherein said second component is at least one of the following: alum or PAC.
US12/540,068 2008-11-20 2009-08-12 Application of chemical aids after a headbox of a papermaking process Abandoned US20100122787A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/540,068 US20100122787A1 (en) 2008-11-20 2009-08-12 Application of chemical aids after a headbox of a papermaking process
PCT/US2010/045116 WO2011019786A2 (en) 2009-08-12 2010-08-11 Application of chemical aids after a headbox of a papermaking process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/274,682 US20100122786A1 (en) 2008-11-20 2008-11-20 Application of retention, drainage, and formation (rdf) chemical aids after a headbox of a papermaking process
US12/540,068 US20100122787A1 (en) 2008-11-20 2009-08-12 Application of chemical aids after a headbox of a papermaking process

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US12/274,682 Continuation-In-Part US20100122786A1 (en) 2008-11-20 2008-11-20 Application of retention, drainage, and formation (rdf) chemical aids after a headbox of a papermaking process

Publications (1)

Publication Number Publication Date
US20100122787A1 true US20100122787A1 (en) 2010-05-20

Family

ID=43586796

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/540,068 Abandoned US20100122787A1 (en) 2008-11-20 2009-08-12 Application of chemical aids after a headbox of a papermaking process

Country Status (2)

Country Link
US (1) US20100122787A1 (en)
WO (1) WO2011019786A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2647761A1 (en) * 2012-04-02 2013-10-09 Metso Paper Inc. Method for influencing the hydrophobic properties of a fiber web in connection with production of the fiber web and production process for fiber webs and device for application of hydrophobic glue chemical to the fiber web

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054630A (en) * 1934-05-05 1936-09-15 Int Paper Co Method and apparatus for manufacturing paper
US3560334A (en) * 1965-09-27 1971-02-02 Mead Corp Apparatus for incorporating additive dispersions to wet webs of paper
US4152202A (en) * 1976-08-02 1979-05-01 Westvaco Corporation Method and apparatus for leveling the cross-direction profile of stock slurry on a paper machine
GB2252984A (en) * 1991-01-21 1992-08-26 Exxon Chemical Patents Inc Novel compositions and their use for sizing paper
US5277765A (en) * 1992-06-18 1994-01-11 Voith, Inc. Headbox with a vertical partition between perforated rolls
US5672306A (en) * 1993-11-12 1997-09-30 Kimberly-Clark Corporation Method of making an adsorbent fibrous nonwoven composite structure
US6372091B2 (en) * 1999-06-18 2002-04-16 Metso Paper, Inc. Method and apparatus for forming a paper web
US6383337B1 (en) * 1997-10-24 2002-05-07 Voith Sulzer Papiertechnik Patent Gmbh Method and device for applying a medium on a running web of material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6423183B1 (en) * 1997-12-24 2002-07-23 Kimberly-Clark Worldwide, Inc. Paper products and a method for applying a dye to cellulosic fibers
MXPA01005678A (en) * 2000-06-07 2003-08-20 Kimberly Clark Co Paper products and methods for applying chemical additives to fibers in the manufacture of paper.
US6582555B2 (en) * 2001-11-05 2003-06-24 Kimberly-Clark Worldwide, Inc. Method of using a nozzle apparatus for the application of the foam treatment of tissue webs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054630A (en) * 1934-05-05 1936-09-15 Int Paper Co Method and apparatus for manufacturing paper
US3560334A (en) * 1965-09-27 1971-02-02 Mead Corp Apparatus for incorporating additive dispersions to wet webs of paper
US4152202A (en) * 1976-08-02 1979-05-01 Westvaco Corporation Method and apparatus for leveling the cross-direction profile of stock slurry on a paper machine
GB2252984A (en) * 1991-01-21 1992-08-26 Exxon Chemical Patents Inc Novel compositions and their use for sizing paper
US5277765A (en) * 1992-06-18 1994-01-11 Voith, Inc. Headbox with a vertical partition between perforated rolls
US5672306A (en) * 1993-11-12 1997-09-30 Kimberly-Clark Corporation Method of making an adsorbent fibrous nonwoven composite structure
US6383337B1 (en) * 1997-10-24 2002-05-07 Voith Sulzer Papiertechnik Patent Gmbh Method and device for applying a medium on a running web of material
US6372091B2 (en) * 1999-06-18 2002-04-16 Metso Paper, Inc. Method and apparatus for forming a paper web

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Smook, Gary A., Handbook for Pulp and Paper Technologists, 2nd ed, Angus Wilde Publications, 1992, pp 220-221. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2647761A1 (en) * 2012-04-02 2013-10-09 Metso Paper Inc. Method for influencing the hydrophobic properties of a fiber web in connection with production of the fiber web and production process for fiber webs and device for application of hydrophobic glue chemical to the fiber web

Also Published As

Publication number Publication date
WO2011019786A3 (en) 2011-06-09
WO2011019786A2 (en) 2011-02-17

Similar Documents

Publication Publication Date Title
JP4803586B2 (en) Kraft paper used for decorative paper or reinforced paper in kraft paper bags
KR101513388B1 (en) Media used in digital high speed inkjet web press printing
WO2007084571A2 (en) Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability
JP5041505B2 (en) Transparent paper base paper
US20100122787A1 (en) Application of chemical aids after a headbox of a papermaking process
US20100122786A1 (en) Application of retention, drainage, and formation (rdf) chemical aids after a headbox of a papermaking process
US20120138249A1 (en) Method for improving paper and board's resistance to the penetration of liquids
ATE550488T1 (en) METHOD FOR PRODUCING A COATED PAPER, CARDBOARD OR OTHER FIBROUS SHEET
US20110126995A1 (en) Method for production of paper
US9689115B2 (en) Sizing of paperboard
JP4969265B2 (en) High white newsprint
CN113874582B (en) Formulations for size press applications
JP4186265B2 (en) Machine reading paper and manufacturing method thereof
JP6927403B1 (en) Paper manufacturing method
EP2647761A1 (en) Method for influencing the hydrophobic properties of a fiber web in connection with production of the fiber web and production process for fiber webs and device for application of hydrophobic glue chemical to the fiber web
JP6822596B1 (en) Paper manufacturing method
AT524998B1 (en) Printable multi-ply paper for packaging and method of making same
US20070113995A1 (en) Paper product and method of making
JP7384556B2 (en) Water repellent liner and corrugated sheet
US20220145542A1 (en) Use of metal chelates as a surface application for abrasion and/or taber stiffness, improvement in paper and paperboard
JP6231834B2 (en) Method for producing uncoated paper for offset printing
JP2879219B2 (en) Paper manufacturing method
EP1548188A1 (en) Paper products and method of making
JP4721123B2 (en) Newspaper paper color shift evaluation method and newspaper paper
JPH11256495A (en) Neutral paper and its production

Legal Events

Date Code Title Description
AS Assignment

Owner name: NALCO COMPANY,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JACOBSON, TOMMY;TODOROVIC, ALEKSANDER;KOKKO, KAJ A;AND OTHERS;SIGNING DATES FROM 20090124 TO 20090616;REEL/FRAME:023092/0057

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION