EP 1318233 B1 20060816 - Process and apparatus for treating a fibrous web
Title (en)
Process and apparatus for treating a fibrous web
Title (de)
Verfahren und Vorrichtung zum Behandeln einer Faserstoffbahn
Title (fr)
Procédé et dispositif pour le traitement d' une bande fibreuse
Publication
Application
Priority
DE 10157689 A 20011124
Abstract (en)
[origin: DE10157689C1] Assembly heats the web in a wide roller nip formed by a roller and a rotating mantle or two supported mantles. The roller/mantle are in contact with the web between them over a given peripheral section. Before the web enters the wide nip, it is treated with a fluid to moisten the fibers and the fiber structure. The fluid is applied to the web at a faster speed than the web on entering the nip. Assembly (1) heats the web in a wide roller nip (9) formed by a roller (3) and a rotating mantle (5) or two supported mantles. The roller/mantle are in contact with the web between them over a given peripheral section. Before the web enters the wide nip, it is treated with a fluid to moisten the fibers and the fiber structure. The fluid is applied to the web at a faster speed than the web on entering the nip. The molecular structure of the liquid is unchanged on passing through the nip, and it evaporates within the nip with a higher vapor pressure than steam from the water contained in the web. The liquid contains one or more components of liquid nitrogen, alcohol, ester, water with a reduced surface tension, and water at a higher temperature than the web in front of the nip.
IPC 8 full level
D21G 1/00 (2006.01)
CPC (source: EP)
D21G 1/006 (2013.01); D21G 1/0093 (2013.01)
Designated contracting state (EPC)
DE FI SE
DOCDB simple family (publication)
DE 10157689 C1 20030213; DE 50207845 D1 20060928; EP 1318233 A2 20030611; EP 1318233 A3 20030910; EP 1318233 B1 20060816
DOCDB simple family (application)
DE 10157689 A 20011124; DE 50207845 T 20021031; EP 02024217 A 20021031