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PEI: A powerful tool for recycle mills

机译:PEI:回收厂的强大工具

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摘要

Producers of quality recycled paper must balance several factors, including the freeness of the furnish after refining and the degree of closure in the paper machine's Whitewater system. The process chemicals used and the customer's requirements— such as strength and printability—are also critical factors. For these reasons, retention/drainage aids (RDAs) are key tools for controlling wet end performance. One particular RDA—polyethylenimine—provides pa-permakers with the flexibility to meet or exceed quality and production goals.
机译:优质再生纸的生产商必须权衡几个因素,包括精制后配料的游离度和造纸机白水系统的封闭程度。所用的过程化学品以及客户的要求(例如强度和可印刷性)也是关键因素。由于这些原因,助留/排水助剂(RDA)是控制湿端性能的关键工具。一种特殊的RDA(聚乙烯亚胺)为造纸商提供了达到或超过质量和生产目标的灵活性。

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