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Paper Porosity Online Profiling

机译:纸孔隙度在线分析

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摘要

The porosity of paper is known to be an important property for almost all paper grades. Most papermakers are concerned about porosity and are aware of process parameters affecting it, but have little or no visibility to affect it. Paper Porosity has been measured over a long period of time using off line laboratory measurements and machine direction online single point techniques. These methods, while generally accurate, result in excessive delays and are too slow for measuring CD profiles in real-time. Honeywell's new paper porosity sensor is a breakthrough in the field of paper porosity measurement. This novel measurement device provides the speed needed for measuring CD porosity profiles and fast MD trends online from a moving paper web. The scanning measurement improves control of this important process variable on a wide range of paper grades.
机译:众所周知,纸张的孔隙度是几乎所有纸张等级的重要属性。大多数造纸厂都关注孔隙率,并且知道影响孔隙率的工艺参数,但是几乎没有或根本没有影响孔隙率的可见性。使用离线实验室测量和机器方向在线单点技术已长时间测量了纸张孔隙率。这些方法虽然通常是准确的,但会导致过多的延迟,并且对于实时测量CD轮廓太慢。霍尼韦尔(中国)的新型纸张孔隙度传感器是纸张孔隙度测量领域的一项突破。这种新颖的测量设备可提供从移动的纸网上在线测量CD孔隙率曲线和快速MD趋势所需的速度。扫描测量可改善对各种纸张等级的重要过程变量的控制。

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