EP 3088604 B1 20200325 - METHOD AND SYSTEM FOR THE OPTIMIZATION OF PROPERTIES OF A MULTILAYER FIBER WEB IN FIBER WEB MANUFACTURE
Title (en)
METHOD AND SYSTEM FOR THE OPTIMIZATION OF PROPERTIES OF A MULTILAYER FIBER WEB IN FIBER WEB MANUFACTURE
Title (de)
VERFAHREN UND SYSTEM ZUM OPTIMIEREN DER EIGENSCHAFTEN EINER MEHRSCHICHTIGEN FASERSTOFFBAHN IN DER FASERBAHNHERSTELLUNG
Title (fr)
PROCÉDÉ ET SYSTÈME POUR L`OPTIMISATION DES PROPRIÉTÉS D'UNE BANDE DE FIBRES MULTICOUCHE PENDANT LA FABRICATION DE BANDES DE FIBRES
Publication
Application
Priority
FI 20155312 A 20150428
Abstract (en)
[origin: EP3088604A1] The invention relates to a method for the optimization of the properties of a multilayer fiber web (10) in the manufacture of a fiber web (10), in which method the multilayer fiber web (10) is formed by feeding at least two stock suspensions that form a layer (16) of the fiber web (10) to a forming section (50) from two or more headboxes (12) divided into parallel feed zones (18), where those properties of said stock suspensions that affect the strength of the finished fiber web differ from each other, and the basis weight profile of said stock suspensions is adjusted in two or more headboxes (12) by feeding dilution water in zones in the cross direction of the fiber web machine into each stock suspension. In the method, the cross-directional basis weight profile and strength of the formed fiber web (10) are adjusted in the cross direction of the fiber web machine by adjusting the amount of dilution water in zones separately in each stock suspension fed. The invention also relates to a corresponding system.
IPC 8 full level
D21F 11/04 (2006.01); D21F 1/08 (2006.01); D21F 1/66 (2006.01); D21G 9/00 (2006.01)
CPC (source: CN EP)
D21F 1/022 (2013.01 - CN); D21F 1/08 (2013.01 - CN EP); D21F 11/04 (2013.01 - EP); D21G 9/0027 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3088604 A1 20161102; EP 3088604 B1 20200325; CN 106087519 A 20161109; CN 106087519 B 20190111
DOCDB simple family (application)
EP 16167211 A 20160427; CN 201610274046 A 20160428