Experimental Study Of The Printed Documents Zhumo Sequencing Features

With the arrival of digital printing era, the printed documents are widely used inthe work and daily life, the ZHUMO sequencing of printed document is graduallybecoming an important part of questioned documents examination. The study beganwith the influence factors of ZHUMO sequencing. More than200pieces ofexperimental samples were manufactued. The printing methods, printing materials,papers, and time internals were considerated aspects. we analysis the season of thephenomenon formation, summarizing the features of the ZHUMO sequencing,exploring effective examinating methods of ZHUMO sequencing. Later, it could offerhelp for the ZHUMO sequencing examinating on the base of the theory and thepractice. The methods of the experimental used were the microscopic examinatingmethod and the spectral examinating method. The microscopic examinating beganwith Ink distribution of the file and seal cross-site, observing the characteristics of thefile’s ZHUMO cross-site. The file analyzer and multi-spectral imaging system weretruly used instruments on the spectral test, analysising the spectral features ofZHUMO sequencing from the cross-site’s spectral features change. The experimentstudy found that color gloss is an important features we could use to judge the printeddocuments ZHUMO sequencing. If some special color gloss was observed in thecross-site of ZHUMO we could correctly judge the order of file and seal formation.It’s an important signal that yellow green gloss appears at the red seal ZHUMO sequencing judgment. The judgment of the blue seal ZHUMO sequencing could havepurple red gloss as a reference. The experiment also found, In occasions of the inkpadfranking, the covering phenomenon could be an important reference on judging theformation order of file and seal. If the stamp-pad ink is full and much, thefluorescence, divergency and the oil film is also the main aspects of us conserderatedon judging the order of file ZHUMO sequencing. Using Multi-spectral imagingsystem We found that comparing spectral curve of the cross position and the blackprinting characters in the imported ink at the wavelength of600nm--650nm can beaccuratly to judge Zhu Mo sequencing. Comparing spectral curve of the crossposition and printing characters of the domestic printing at wavelength600nm--700nm can be accuratly to judge Zhu Mo sequencing. The experimentalresearching results is that summarizing the phenomenon characteristics of first redsecond black and first black second red from the experiment, using the observedfeatures and the experiment results to have a comprehensive comparative analysis,could be compared to correctly determine the formation order of file is normal or not,also provide the reference for judging the order of printed documents and the seal.