D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 5/02 (2006.01)
Patent
CA 2208782
A process and composition for deinking waste paper is disclosed. The process comprises administering an alcohol, randomly alkoxylated with a mixture of alkylene oxides to form a surfactant, to a sample of waste paper for which treatment is desired. The surfactant enhances the aggregation and densification of electrostatic toner particles, while promoting foaming in the aqueous slurry.
L'invention porte sur un procédé ainsi que sur la composition correspondante, permettant le désencrage de papier de récupération. Ce procédé consiste à appliquer un alcool, alcoxylé de manière aléatoire au moyen d'un mélange d'oxydes d'alkylène pour former un agent tensioactif, à un échantillon de papier de récupération que l'on désire traiter. Cet agent tensioactif renforce les phénomènes d'agglomération et de densification de particules de toner électrostatiques tout en facilitant le moussage dans une suspension aqueuse épaisse.
Betzdearborn Inc.
Borden Ladner Gervais Llp
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