Research on parameters and printing reproduction characteristics of Concentric Screening
Concentric dot is formed by dividing round AM dot into thin concentric rings,which has not only the shape characteristic of AM and FM dots,but also the features and advantages of the two dots.The Concentric Screening is a new halftone screening technology which breaks through the traditional model of reproduction image information by solid dot.To use concentric screening technology in offset printing,the first step is running single color print test to determine concentric screening parameters for the given printing condition,which is unique to concentric screening compare with solid dot printing.Through analyzing and evaluating the printing characteristics of single color print test,the paper provides the method to determine screening parameters such as screening rulings,CTP precision,the width of Ring and Space; Designing and running the four color test based on the first step is aimed to study the reproduction characteristic of concentric dot about gamut,definition,chroma,tone,compared with solid dot.The research shows that the parameters of concentric screening should be determined according to the specific production condition in offset printing.Concentric screening can obtain high saturation and present large color gamut.Also,concentric screening is suitable for high-quality products,which can accept high screen rulings and high-definition.This paper contains experimental study on the correlation between concentric screening parameters and color reproduction.The basis for evaluating concentric screening parameters is offered,and a comprehensive evaluation of its reproduction characteristics is done.This study provides a theoretical basis for the application of the concentric screening technology in offset printing.
Concentric dot Screen parameters Chroma Dot gain
WANG Qi ZHOU Xiao-fan Yi Qing
Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037,China
国际会议
the 2nd China Academic Conference on Printing and Packaging (2012第二届中国印刷与包装学术会议(CACPP 2012))
北京
英文
334-339
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）