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Research On Hydrogel-based Multifunctional Cleaning Method Of The Paintings And Calligraphies

Posted on:2021-01-05Degree:DoctorType:Dissertation
Country:ChinaCandidate:H M LiFull Text:PDF
GTID:1368330605979454Subject:History of science and technology
Abstract/Summary:PDF Full Text Request
Paper relics occupy an important position on the cultural relics in China.It plays an essential role in saving and spreading the most precious history and cultural information.Among various forms of paper relics,the traditional Chinese paintings and calligraphies are the most unique ones.As a method of decoration and conservation of paper relics,it is made of several materials such as paper,textile,wood,pigments and other addictive materials.Those materials in the painting and calligraphy are sensitive to the factors in the environment such as light,temperature,humidity,air pollution and so on.Besides,as to now,most of the museums in China,the environment is not so strictly controllable.The paintings and calligraphies are always in the process of degradation and contamination.Thus,the conservation and restoration work carry great meanings on the paintings and calligraphies.Cleaning is one of the most delicate and important steps in paper conservation.Washing by immersion,rinse or even washing by hot water represent the traditional technique because water can uniformly reach paper artifacts but the prolonged contact with water induces swelling of cellulosic fibers,which can cause deformation of paper material after drying.As an innovative cleaning methodology,hydrogel is a linear anionic heteropolysaccharide produced by Pseudomonas elodea.It can be completely and easily removed in one operation after its application,thus minimizing the side effects already presented.Gellan gum is a linear anionic heteropolysaccharide.It is transparent,easy to get and perform on paper and leaves no residue on paper.Gellan hydrogel has been widely used on materials like paper,textiles and wood in western countries.So far,few studies are on the gellan hydrogel applying on the traditional Xuan paper-based paintings and calligraphies.This paper has done researches based on the paper used on paintings and calligraphies as follows:1.Through investigation were done on the diseases and contaminations of Chinese ancient paintings and calligraphies,analyses and tests were applied on the paper samples from the paper relics.From these,we summarized the main contamination types and mechanism on paper.2.Based on the common contamination on the paintings and calligraphies,we simulated several of the contaminations on the modern paper such as acidification,water stains and molds and then evaluated the simulated paper samples.3.We prepared different recipes of gellan hydrogel based on the different diseases and contaminations.Through the tests and evaluations on simulated paper before and after cleaning,better gellan based hydrogel recipes suitable for the certain contaminations are chosen.4.Methods to determine degradation status and contaminations of paper relics and evaluations on paper cleaning effectiveness were researched.
Keywords/Search Tags:Paintings and Calligraphies, Paper cleaning, gellan hydrogel, cellulose of paper, Paper degradation, deacidification, water stains, antimolds on paper
PDF Full Text Request
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