Method and system of producing of fiber webs
The invention relates to a method of producing of fiber webs, in which method pulp is fed the from a head box (10) to a forming section (20), in which water is removed from the pulp by water removal means and a fiber web is formed, in which water is further removed by pressing the fiber web in a pre...
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Format: | Patent |
Sprache: | eng ; fin |
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Zusammenfassung: | The invention relates to a method of producing of fiber webs, in which method pulp is fed the from a head box (10) to a forming section (20), in which water is removed from the pulp by water removal means and a fiber web is formed, in which water is further removed by pressing the fiber web in a press section (30), in which in a subsequent drying section (40) the fiber web is dried, in which the fiber web is reeled into a parent roll in a reel-up (80), in which the parent roll is unwound in an unwinder of a slitter-winder (90) and then slit into partial fiber webs in a slitter of the slitter-winder (90), which partial fiber webs are wound to customer rolls in a winder of the slitter winder (90), in which method the fiber web is trimmed before the reeling on the reel-up by at least one trim cutting device (100), in which trimming at least one trim strip is removed from at least one edge of the fiber web. The fiber web is trimmed by the cutting of the at least one trim strip to a fullwidth defined by total width of the customer rolls to be produced in the slitterwinder (90). The trim strip has a width of at least 300 mm. The invention also relates to a system of producing of fiber webs.
Keksinnön kohteena on menetelmä kuiturainojen valmistamiseksi, jossa menetelmässä massaa syötetään perälaatikosta (10) muodostusosaan (20), jossa vettä poistetaan massasta vedenpoistovälineillä ja kuituraina muodostetaan, jossa vettä edelleen poistetaan puristinosassa (30) puristamalla kuiturainaa, jossa seuraavassa kuivatusosassa (40) kuiturainaa kuivataan, jossa kuituraina rullataan konerullaksi kiinnirullaimella (80), jossa konerulla aukirullataan pituusleikkurin (90) aukirullaimella, ja sitten pituusleikataan pituusleikkurin (90) leikkurissa osakuiturainoiksi, jotka osakuiturainat rullataan asiakasrulliksi pituusleikkurin (90) rullaimella, jossa menetelmässä kuituraina trimmataan ennen rullausta kiinnirullaimella ainakin yhdellä trimmausleikkauslaitteella (100), jossa trimmauksessa ainakin yksi trimminauha poistetaan kuiturainan ainakin yhdestä reunasta. Kuituraina trimmataan kokoleveyteen, jonka määrittää pituusleikkurin (90) rullaimella valmistettavien asiakasrullien kokonaisleveys. Trimminauhan leveys on ainakin 300 mm. Keksinnön kohteena on myös järjestelmä kuiturainojen valmistamiseksi. |
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