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Research On New Technology Methods Of Transfer Printing

Posted on:2021-04-15Degree:MasterType:Thesis
Country:ChinaCandidate:Q WangFull Text:PDF
GTID:2416330647954098Subject:Forensic
Abstract/Summary:PDF Full Text Request
In the current forensic authentication field,with the rapid development of high-tech methods,with the advent of various forged seal technologies,the identification of high-simulation seals and seals in the practice of forensic authentication has become increasingly important.The identification of high-simulation seals and seals has become a key research object in the academic circle.Among them,the identification method of transfer seals has not yet been systematically summarized.Transfer printing is an ancient method of forgery,but research on it has remained at the basic stage,and few people have systematically combed the transfer printing.The author consults a large number of literatures and finds that there are very few literatures on transfer printing,and there are few related studies.However,with the continuous development of science and technology,more and more emerging forgery technologies of transfer printing have appeared,and it is difficult to accurately identify the transfer printing in practical work,so this article aims to sort out the transfer Forgery methods and inspection and identification techniques of printed seals.The transfer printing is difficult to identify.In the inspection and identification,the characteristics caused by different forgery methods should be analyzed to scientifically judge the value of the feature coincidence points and difference points.The conventional inspection methods for the identification of printed texts mainly include instruments such as microscope inspection and document inspection.The purpose of this article is to explore new methods such as the composition,materials,and three-dimensional features of the printed text based on traditional inspection methods.This article is mainly divided into the following six chapters.The first chapter is an overview of the theory of transfer printing.It is divided into two parts.One is a brief overview of the concept of modern seals and the other is the transfer of seals.The theoretical basis and difficult points of the forging technique of India and India are summarized,and the concepts between them are clarified.The second chapter mainly describes the forgery technology of transfer printing.The first is an overview of the method of forging transfer printing.It is mainly divided into direct transfer method and indirect transfer method.The main transfer method in this article Select the production process with the intermediate medium as the carrier.The second is to sort out the factors that affect the quality of the transfer printing,and explore the influencing factors through the selection of real seals,transfer instruments,operation controls,transfer paper,and intermediate media.The third is to explain the general characteristics of the transfer printing,which is divided into the analysis of the characteristics of the real stamp and the analysis of the characteristics of the transfer printing.The third chapter is divided into three parts,one is to prepare the experimental samples,determine the experimental program,the other is the introduction of experimental equipment and the control of experimental conditions,for the transfer of adequate preparation,and the third is in the case of control variables,to explore the transfer capacity and what factors are closely related.Chapter FOUR,using conventional inspection technology and new testing technology,using microscope test,document inspection instrument test method,Lorentzen and Wettre thickness meter,3D shape profile meter,ESDA2 static voltage tracer,(real-time direct analysis mass spectrometer)DART-MS makes a full comparison and analysis of the resulting transfer print.The fifth chapter is to transfer the test points of print ing technology to summarize,clear the transfer of printing test ideas and inspection of the considerations.In actual cases,for the appraisers,there is no systematic research on whether the seals are formed by transfer technology.There is still a great challenge to verify the accuracy of the identification.How to use new technology to distinguish the transfer printing from the real printing is the core content of this article,and it is also the difficulty of the current transfer printing identification.The purpose of this article is to provide a scientific basis for the practical appraisal of seals and seals through experimental research methods.
Keywords/Search Tags:Seal printing, transfer of printing, forgery technology, experimental research
PDF Full Text Request
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