The Effect of Intense Air Drying on Material Distribution and Quality in Coated Papers
The Effect of Intense Air Drying on Material Distribution and Quality in Coated Papers
复制标题
强烈空气干燥对涂布纸材料分布和质量的影响
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Richard Solin
中科院分区：
文献类型：
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作者：
P. Rajala;H. Häkkänen;C. Berg;Richard Solin
摘要：本研究的目的是了解在高对流速率（150 kg/m2h）的空气干燥机中干燥涂层对纸张涂层质量和材料梯度的影响。不同的印刷纸被涂布，砑光和印刷与试点机器。用激光诱导等离子体光谱法（LIPS）分析涂层和打印样品的粘结剂和颜料梯度。研究发现，干燥对淀粉的迁移有影响，但对乳胶的迁移没有影响。如果可以分别控制空气温度、速度和含水率，则可采用全空气干燥法干燥印刷纸。在涂布机干燥段，控制卷筒纸温度比控制蒸发速率对纸张质量的形成更为重要。
Abstract The aim of this study was to find out what will happen to paper coating quality and material gradients if coating is dried in one air dryer at a high convection rate (150 kg/m2h). Different printing papers were coated, calendered and printed with pilot machines. The binder and pigment gradients of the coated, and also printed, samples were analyzed with LIPS (Laser Induced Plasma Spectrometry). It was found that drying affects the migration of starch, but not latex. Total air drying can be used to dry printing papers, if air temperature, velocity and moisture content can be separately controlled. The control of web temperature is more important for paper quality formation in a coater drying section than that of evaporation rate.