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Process and apparatus for the preparation of filler and / or pigment suspensions, in particular for the paper industry, and pigments for the paper industry
Process and apparatus for the preparation of filler and / or pigment suspensions, in particular for the paper industry, and pigments for the paper industry
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机译:用于制备填料和/或颜料悬浮液(特别是用于造纸工业)和用于造纸工业的颜料的方法和设备
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摘要
In a process for the preparation of aqueous suspensions of fillers and/or pigments having defined particle size distributions, an aqueous initial suspension of fillers and/or pigments is prepared and is subjected to gravity screening (gravity separation) and, after at least a predetermined duration of the gravity screening, at least one separated suspension of fillers and/or pigments having an appropriate particle size distribution is withdrawn. The preparation of these aqueous suspensions is carried out using, in particular, a through-flow centrifuge. Also disclosed are certain pigment suspensions for the paper industry. The new pigments and suspensions of fillers and/or pigments can be used in particular in the production of paper, in the size press of the paper-making machine, for coating paper and cardboard, in the paper precoating and as the top coating of paper and cardboard. IMAGE
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