Flexo Print Quality Inspection And Control - Color Printing Dot Gain Control Of The Phenomenon

Based on the whole process of dot transmission, this paper analyses the mainfactors that affect dot gain of Flexography, provides the concrete methods toreduce dot gain .The authr hopes to provide theoretical basis for solving theproblem of dot gain .This paper provides a deep research on the circular dot andsquare dot,and got the law of mechanical dot gain.Meanwhile, integraing the practice with the future, the auhor considers thechief affecting factors such as print pressure, screen line of plate, hardness ofplate,analyses the affection of these factors to dot gain. Thrugh experiment, theauthor gets the affecting curve and builds a mathematical models. In addition, withthe help of MATLAB software,this paper gets the compensation curve of dot gain,calculates the compensation equation and analogous equation, proposes the programand Way to control dot gain, which help to achieve high quality results.