Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece

Fibre board prodn. by wet processing - with addition of wetting agent before pressing-heat treating fibrous fleece

Fibre-board is produced by (a) mixing the fibres with water in a mixing vessel, (b) pumping the suspension to a drainage chamber, (c) dewatering on a sieve to form a fleece, and (d) subjecting the fleece to pressing and/or heat treatment. A wetting agent is added to the material before step (d). Pro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HERBERT NOPPER ET HEINZ SACHSE
Format: Patent
Sprache:eng ; fre
Schlagworte:
FIBREBOARD
MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS ORFROM PAPIER-MACHE
PAPER-MAKING
PRODUCTION OF CELLULOSE
TEXTILES
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Beschreibung
Zusammenfassung:Fibre-board is produced by (a) mixing the fibres with water in a mixing vessel, (b) pumping the suspension to a drainage chamber, (c) dewatering on a sieve to form a fleece, and (d) subjecting the fleece to pressing and/or heat treatment. A wetting agent is added to the material before step (d). Process gives relatively short pressing times, low heat consumption during heat treatment and good quality plates, esp. having good hydrophobic properties.