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›› 2007, Vol. 7 ›› Issue (2): 216-222.

• 流动与传递 • 上一篇    下一篇

幂律油墨在纸张中渗透深度的计算与实验

刘福平,齐晓堃,王安玲   

  1. 北京印刷学院基础部、印刷包装工程系
  • 出版日期:2007-04-20 发布日期:2007-04-20

Numerical Calculation and Experimentation of Permeating Depth of Power-law Printing Ink in Porous Paper Printing

LIU Fu-ping,QI Xiao-kun,WANG An-ling   

  1. Beijing Institute of Graphic Communication
  • Online:2007-04-20 Published:2007-04-20

摘要: 利用一维渗流方程导出了印刷过程中幂律油墨渗透深度随印压和印刷速度(印压时间)的变化关系,由渗透深度测量值和所推幂律油墨渗透深度公式计算了幂律油墨在几种型号纸张中渗透率与纸张孔隙度的比值(渗孔比). 改变印压和印刷速度,由幂律油墨渗孔比,利用幂律油墨渗透深度公式对油墨渗透深度进行了估算,结果与实验测量值吻合得很好.

关键词: 渗透深度, 幂律油墨, 渗孔比, 印压时间, 自由渗透

Abstract: In printing, the permeating depth formulae of power-law printing ink have been derived from the flow fluid equations for porous paper, which vary with the printing pressure and printing velocity, and the permeating depths of power-law printing ink of a few kinds of standard paper have been measured by experiment. The ratios of permeability to porosity are calculated from the measured results according to the permeating depths equations of power-law printing ink. Using the ratios and changing the printing pressure and printing velocity, the permeating depths of power-law printing ink in porous papers are calculated. The results show that computed permeating depths of power-law printing ink are in good agreement with the measured permeating depths of that. This indicates that the computing method is feasible, so that one may apply the permeating depth equations of printing ink in printing preparation and research of permeability of power-law printing ink in porous paper.

Key words: permeating depth, power-law printing ink, ratio of permeability to porosity, printing time, free permeation