EP 1334231 A1 20030813 - PRESS SECTION OF A BOARD MACHINE PROVIDED WITH A PRE-PRESS AND METHOD FOR REMOVING WATER FROM A WEB IN SUCH A PRESS SECTION
Title (en)
PRESS SECTION OF A BOARD MACHINE PROVIDED WITH A PRE-PRESS AND METHOD FOR REMOVING WATER FROM A WEB IN SUCH A PRESS SECTION
Title (de)
PRESSENPARTIE FÜR EINE MIT EINEM VORPRESSSPALT VERSEHENE KARTONMASCHINE UND VERFAHREN ZUR ENTWÄSSERUNG EINER PAPIERBAHN IN EINER SOLCHEN PRESSENPARTIE
Title (fr)
SECTION DES PRESSES DE MACHINE A CARTON EQUIPEE D'UNE PRE-PRESSE ET PROCEDE D'EGOUTTAGE D'UNE BANDE CONTINUE DANS UN TELLE SECTION DES PRESSES
Publication
Application
Priority
- FI 0100960 W 20011102
- FI 20002428 A 20001106
Abstract (en)
[origin: WO0236878A1] The press section comprises at least two separate press nips (N1, N2) through which a web (W) to be pressed is passed as a closed draw. The first press nip of the press section is a pre-press nip (N1) formed between a roll (11) placed inside a forming wire loop (12) and a roll (21) placed outside the forming wire loop (12), which pre-press nip is an extended nip. The second press nip of the press section is a press nip proper (N2) provided with two water-receiving press felts (34, 42), through which nip the web (W) runs between said press felts (34, 42). An upper press fabric in the pre-press nip (N1) is formed of a water-receiving press fabric (24) lying against the outer surface of the water-receiving press fabric (24), in which connection the web (W) runs in the pre-press nip (N1) between the lower forming wire (12) and the upper water-permeable press fabric (26). The invention also relates to a method for removing water from a web in a press section provided with a pre-press nip.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D21F 3/04 (2013.01 - EP US); D21F 3/045 (2013.01 - EP US)
Citation (search report)
See references of WO 0236878A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0236878 A1 20020510; AT E325228 T1 20060615; AU 1406502 A 20020515; DE 60119366 D1 20060608; DE 60119366 T2 20070315; EP 1334231 A1 20030813; EP 1334231 B1 20060503; FI 115307 B 20050415; FI 20002428 A0 20001106; FI 20002428 A 20020507; US 2004055723 A1 20040325
DOCDB simple family (application)
FI 0100960 W 20011102; AT 01982503 T 20011102; AU 1406502 A 20011102; DE 60119366 T 20011102; EP 01982503 A 20011102; FI 20002428 A 20001106; US 41526503 A 20031014