特种纸针孔眼纸病的影响因素和控制措施

The influencing factors of pinhole defect for specialty paper and its countermeasures

特种纸具有用途特殊、产量小等特点,同时部分产品的定量偏低,又要求具有较高的白度、不透明度和灰分,导致填料比例较高,因此纸张有较多的针孔眼。对印刷性、透气性等有要求的特种纸,针孔眼严重影响其使用性能。本文将对针孔眼的产生、控制进行探讨。

For specialty paper products,there often exists lots of pinhole in paper sheet,because of higher filler content due to their special usage,small batch of output,low basis weight,higher brightness,opacity and ash content. Pinhole defect seriously affects the applying performance to paper species required with printability and air permeability. The forming mechanism and countermeasures were studied in this article.