EP4379130C0 - Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête - Google Patents

Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête

Info

Publication number
EP4379130C0
EP4379130C0 EP22210936.5A EP22210936A EP4379130C0 EP 4379130 C0 EP4379130 C0 EP 4379130C0 EP 22210936 A EP22210936 A EP 22210936A EP 4379130 C0 EP4379130 C0 EP 4379130C0
Authority
EP
European Patent Office
Prior art keywords
headbox
coating compositions
applying coating
wet pulp
pulp substrate
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.)
Active
Application number
EP22210936.5A
Other languages
German (de)
English (en)
Other versions
EP4379130B1 (fr
EP4379130A1 (fr
Inventor
Tjerk Boersma
Willy Jaspers
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.)
Sappi Papier Holding GmbH
Original Assignee
Sappi Papier Holding GmbH
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
Application filed by Sappi Papier Holding GmbH filed Critical Sappi Papier Holding GmbH
Priority to ES22210936T priority Critical patent/ES3035469T3/es
Priority to EP22210936.5A priority patent/EP4379130B1/fr
Priority to PCT/EP2023/083624 priority patent/WO2024115610A1/fr
Publication of EP4379130A1 publication Critical patent/EP4379130A1/fr
Application granted granted Critical
Publication of EP4379130B1 publication Critical patent/EP4379130B1/fr
Publication of EP4379130C0 publication Critical patent/EP4379130C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/026—Details of the turbulence section
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section
    • 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
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • 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
EP22210936.5A 2022-12-01 2022-12-01 Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête Active EP4379130B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES22210936T ES3035469T3 (en) 2022-12-01 2022-12-01 Headbox and method for applying coating compositions onto a moving wet pulp substrate using said headbox
EP22210936.5A EP4379130B1 (fr) 2022-12-01 2022-12-01 Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête
PCT/EP2023/083624 WO2024115610A1 (fr) 2022-12-01 2023-11-29 Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte à papier humide mobile à l'aide de ladite caisse de tête

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22210936.5A EP4379130B1 (fr) 2022-12-01 2022-12-01 Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête

Publications (3)

Publication Number Publication Date
EP4379130A1 EP4379130A1 (fr) 2024-06-05
EP4379130B1 EP4379130B1 (fr) 2025-07-02
EP4379130C0 true EP4379130C0 (fr) 2025-07-02

Family

ID=84369784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22210936.5A Active EP4379130B1 (fr) 2022-12-01 2022-12-01 Caisse de tête et procédé d'application de compositions de revêtement sur un substrat de pâte humide mobile à l'aide de ladite caisse de tête

Country Status (3)

Country Link
EP (1) EP4379130B1 (fr)
ES (1) ES3035469T3 (fr)
WO (1) WO2024115610A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5104011A (en) * 1990-08-03 1992-04-14 Ingersoll-Rand Company Self-cleaning feed apparatus
US5456804A (en) * 1994-08-22 1995-10-10 Ingersoll-Rand Company Inlet slice assembly, for a pulp slurry processing machine

Also Published As

Publication number Publication date
ES3035469T3 (en) 2025-09-03
EP4379130B1 (fr) 2025-07-02
EP4379130A1 (fr) 2024-06-05
WO2024115610A1 (fr) 2024-06-06

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