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首页> 外文会议>Paper conference and trade show >Fractionating: New Reveals of Stock Retention Mechanisms with Optimized Use of and Mixing of Additives in Paper and Board Production
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Fractionating: New Reveals of Stock Retention Mechanisms with Optimized Use of and Mixing of Additives in Paper and Board Production

机译：分级：在纸和纸板生产中优化使用和混合添加剂的库存保持机制的新发现

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A set of laboratory and field tests confirmed that a new novel method of combination of fractionating technology and fiber imagining is capable of evaluating function of retention chemicals in pulp suspensions. Retention chemical mechanisms were seen visually and it was observed that different chemicals have own role in binding fines and fillers. Fines and fillers are attached to fibers and especially to fibrillated fibers. Non-fibrillated fibers were seen basically plain - even after suspension chemical treatment. One important function is that fines and fillers are agglomerating as bigger particles between themselves and chemicals. This agglomeration will help particles to retain better in forming web. Results were logical according used retention chemical system. Conclusion from the second test is that this kind of measurements will give new tools also for board making where multiple plies are formed as a web. In board making different layers have different raw materials so retention systems can be optimized based on layer targets. Too often same retention program has been selected for all plies trying to balance the dosage rates on different plies. Fractionator studies showed evidence that especially for fines (and filler) retention different programs might need to be selected for optimum performance.
机译：一组实验室和现场测试证实，将分馏技术与纤维成像相结合的新方法能够评估纸浆悬浮液中保留化学剂的功能。从视觉上观察到保留化学机理，并且观察到不同的化学物质在结合细料和填料中具有自己的作用。细粉和填料附着在纤维上，尤其附着在原纤化的纤维上。即使在悬浮液化学处理后，未原纤化的纤维也基本上是平整的。一个重要的功能是，细粉和填充剂在它们和化学品之间会聚结成较大的颗粒。这种附聚将有助于颗粒更好地保留在形成网中。根据使用的保留化学系统，结果是合乎逻辑的。第二项测试得出的结论是，这种测量方法还将为多层制造网状板提供新的工具。在纸板制造中，不同的层具有不同的原材料，因此可以根据层目标优化保留系统。经常为所有层选择相同的保留程序，以尝试平衡不同层上的剂量率。分馏器研究表明，特别是对于细粉（和填料）保留而言，可能需要选择不同的程序以实现最佳性能。

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