牛奶枕包用原纸印刷后覆膜牢度差的分析及处理

摘要

The poor PE iflm adhesion fastness appeared for milk pillow package base paper after printing, which is caused because of slow drying of ink after printing and poor ink adsorption due to low water absorption and low air permeability of base paper, and because of poor PE iflm adhesion fastness when coating. The poor adhesion fastness of PE iflm after printing was solved by adjusting beating degree, improving sizing agents and its dosage and optimizing papermaking process.%牛奶枕包用原纸经印刷后覆PE膜复合牢度差，经分析系原纸表面吸水性低、透气度低、孔隙率低，使纸张吸墨性不良印刷后油墨干燥速度慢，油墨与纸张附着力差，造成淋膜时PE膜复合牢度差。生产原纸时通过打浆度的调整、表面施胶剂的改善、施胶剂用量的控制和抄造时的操作工艺调整处理，解决了原纸印刷后PE膜复合牢度差的问题，满足了产品要求。