摘要
本文从网点传递的全过程入手,分析了影响网点增大的主要因素,并提出
了减少网点增大的具体措施,对指导实际印刷过程有一定的理论参考价值。对
圆形网点和方形网点进行了深入分析,在此基础上归纳出机械网点增大的规律
性。
结合实际,本文主要从印刷压力、印版的加网线数及印版的硬度等几个主
要的影响因素进行考虑,分别分析这几个因素对印刷中网点增大现象的影响,
通过实验得到影响曲线,建立合理的数学模型,得出网点增大的补偿曲线,并
借助MATLAB软件拟合,计算出拟合曲线与补偿曲线的方程,提出了控制网点
增大的程序及方法,有助于实际生产中提高柔性版印刷品的质量。
Based on the whole process of dot transmission, this paper analyses the main
factors that affect dot gain of Flexography, provides the concrete methods to
reduce dot gain .The authr hopes to provide theoretical basis for solving the
problem of dot gain .This paper provides a deep research on the circular dot and
square dot,and got the law of mechanical dot gain.
Meanwhile, integraing the practice with the future, the auhor considers the
chief affecting factors such as print pressure, screen line of plate, hardness of
plate,analyses the affection of these factors to dot gain. Thrugh experiment, the
author gets the affecting curve and builds a mathematical models. In addition, with
the help of MATLAB software,this paper gets the compensation curve of dot gain,
calculates the compensation equation and analogous equation, proposes the program
and Way to control dot gain, which help to achieve high quality results.
引文
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