D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/00 (2006.01) B01F 7/00 (2006.01) D21H 17/70 (2006.01) B01F 13/10 (2006.01) D21H 17/67 (2006.01)
Patent
CA 2438607
The invention relates to a method and a device for charging fibres, contained in a fibrous material suspension, with a filling material by means of a chemical precipitation reaction. According to the invention, the fibrous material suspension is fed to a pump disperser, wherein large fibre agglomerates are broken down into smaller or even individual fibres by shear force. The pump disperser is also used as a reactor for the chemical precipitation reaction.
L'invention concerne un procédé et un dispositif d'introduction d'une charge dans des fibres contenues dans une suspension de matière fibreuse au moyen d'une réaction de précipitation chimique. Selon ledit procédé, la suspension de matière fibreuse est alimentée dans un disperseur à pompe, et soumise dans ce dernier à des forces de cisaillement de manière à fractionner des agglomérats fibreux de taille supérieure en agglomérats de taille inférieure, voire en fibres individuelles. A cet effet, ledit disperseur à pompe est employé simultanément en tant que réacteur pour la réaction de précipitation chimique.
Doelle Klaus
Heise Oliver
Rheims Joerg
Sigl Ronald
Witek Werner
Sim & Mcburney
Voith Paper Patent Gmbh
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