使用脱墨浆生产涂布纸的经济性

Economics of coated paper production made from deinked pulp

使用脱墨浆生产涂布纸的比例不断增加,甚至有些工厂用100%的脱墨浆来生产涂布原纸。由脱墨浆生产的涂布纸的白度可以通过调整脱墨浆的用量并通过适当的涂层来补偿白度以达到要求,从而优化整体生产成本。作者认为通用的优化方法是结合多层Kubelka-Munk模型来计算得到脱墨和涂布工艺最经济的组合,该组合可以使得用脱墨浆生产的涂布纸达到给定的目标白度,同时保持涂布纸的机械性能。这种方法和软件能够帮助造纸工作者找到脱墨和涂布工艺最经济的组合,以生产达到光学性能要求的涂布纸。

The fraction of deinked pulp for coated paper production is continually increasing, with some mills using 100%deinked pulp for the base paper. The brightness of the coated paper made from deinked pulp may be reached through a combination of more or less extensive deinking, compensated by appropriate coating, to optimize costs overall. The authors proposed general optimization methods combined with Kubelka-Munk multilayer calculations to ifnd the most economical combination of deinking and coating process that would produce a coated paper made from DIP, at a given target brightness, while maintaining mechanical properties. The methods and software can help papermakers ifnd the least expensive combination of deinking and coating process to produce coated paper with targeted optical properties.