C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 30/00 (2006.01) C08B 30/02 (2006.01) C08B 30/12 (2006.01) C08B 30/14 (2006.01) C08B 30/16 (2006.01) D21H 17/28 (2006.01) D21H 17/29 (2006.01)
Patent
CA 2057106
In a method for preparing a starch solution, particles containing starch are mixed with cold water and subjected to shear forces, such that any agglomerates formed are broken up, and each individual particle is wetted, whereupon the mixture is heated to at least about 60°C and maintained in the heated state until the viscosity maximum of the solution has passed. The wetting and the heating take place before a viscosity that is unacceptable from the point of view of handling has been reached. A device for implementing the method, a starch solution prepared in accordance with the method, and the use of such a starch solution for making paper are also disclosed.
Méthode de préparation de l'empois d'amidon. Les particules contenant de l'amidon sont mélangées à de l'eau froide et soumises à des forces de cisaillement, de sorte que tous les agglomérats formés soient brisés, et que chaque particule individuelle soit humidifiée, après quoi le mélange est chauffé à au moins 60 degrés Celcius environ et maintenu en cet état jusqu'à la fin de la viscosité maximale de la solution. L'humidification et le chauffage se font avant que la viscosité ne devienne inacceptable pour ce qui est de la manutention. Un dispositif pour utiliser la méthode, de l'empois d'amidon préparé selon la méthode et l'utilisation de cet empois d'amidon pour la fabrication de papier sont aussi décrits.
Jacobsson Kenneth
Johansson Kjell
Eka Nobel Ab
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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