EP 1895050 B1 20090429 - Process for moistening a fibrous web
Title (en)
Process for moistening a fibrous web
Title (de)
Verfahren zur Befeuchtung einer Faserstoffbahn
Title (fr)
Procédé d'humidification d'une bande fibreuse
Publication
Application
Priority
DE 102006040688 A 20060830
Abstract (en)
[origin: EP1895050A1] The fibrous web (1) is subjected to treatment with wet steam from a nozzle (5) arrangement. This is carried out between two or more smoothing nips through which the web passes. The moistening device is located 10-100 cm before the nip. The mass ratio: liquid water/vaporized water, is adjustable. Separate adjustment is provided in zones across the direction of web travel (4). Ratio adjustment is a function of the type of web, its weight and/or the operating speed. The nozzles are at right angles to the web, over its entire width. They are connected to a mixing chamber (6) supplied with saturated or superheated steam and boiling water or condensate. There are a number of mixing chambers. A control valve is included in each steam (7) and/or water condensate (8) supply line. A spacing of 10-100 cm intervenes in each case, between nozzles and web and between nozzles and smoothing nip.
IPC 8 full level
D21G 1/00 (2006.01)
CPC (source: EP)
D21G 1/0093 (2013.01)
Designated contracting state (EPC)
AT DE FI IT
DOCDB simple family (publication)
EP 1895050 A1 20080305; EP 1895050 B1 20090429; AT E430216 T1 20090515; DE 102006040688 A1 20080306; DE 502007000662 D1 20090610
DOCDB simple family (application)
EP 07108110 A 20070514; AT 07108110 T 20070514; DE 102006040688 A 20060830; DE 502007000662 T 20070514