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이혜윤,한민수,정용재,송정주,Lee, Hye-Yun,Han, Min-Su,Chung, Yong-Jea,Song, Jeoung-Ju 국립문화재연구소 2005 保存科學硏究 Vol.26 No.-
In ancient times, many kinds of difference inorganic and organic pigment were used as colorants for making objects. This study has proved the damage regions on the aging conditions of the silk dyeing traditional pigment. so whiteness, tensile strength and digital-microscope were measured to examine the state of silk dyeing traditional pigments pretreated under each aging condition. From the result examining the state, all the silk dyeing traditional pigments were best condition at low temperature(-20/RT)and normal condition and damaged at high temperature($60^{\circ}C$) and 2ppm $SO_2$condition and UV condition. As a result of X-ray diffraction analysis of crystalline structure for the silk dyeing traditional pigments, most of specimens have nearly changed crystalline structure despite specimens had each other different conditions and times. Especially, specimens which was passing of 4-8 months have not changed in its crystalline structure. But some specimens like a Unghwang and Seokcheong have a little changed in its intensity in the XRD peak. Consequently, If we want to find out alteration of crystalline structure for the silk dyeing traditional pigments using scientific method according to change of environmental conditions, we must guarantee of equal state and strengthen of environmental conditions in specimen. Additionally, the term of experiment need to belong, and specimens which was experimented and analyzed must be same.
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토양분석을 통한 고고학적 해석-익산 왕궁리 수혈유구 토양을 대상으로
김민희,서민석,정용재,전용호,Kim, Min-Hee,Seo, Min-Seok,Chung, Yong-Jea,Jeon, Yong-Ho 국립문화재연구소 2005 保存科學硏究 Vol.26 No.-
Coprostanol is a metabolic product of cholesterol, formed by microbial action in the mammalian gut. This chemical compound is the major sterol in human and has been routinely studied as a biomarker of sewage pollution in marine and lacustrinesediments. This has led to the search for coprostanol as a biomarker in archaeologicalsoils, in order to detect the presence of fecal material. In this study, five samples of archaeological soils excavated at Wanggung ri, Iksancity, were used to assess the possibility of using coprostanol as indicators of ancient human activity in archaeological areas. The sampled soils were analyzed MXRD,EDXRF for their physical and chemical properties. And coprostanol was analysed byGC/MSD, using SIM method to detect and quantify specific compound. The results showed the soils were composed of quartz and feldspars, inorganicelement such as $SiO_2$, $Al_2O_3$, $Fe_2O_3$ etc. Moreover, the result from the analysis wasindicated that the specific compound is coprostanol. The coprostanol was determined at $0.16~1.01\mug$/g in the range of concentrations. This finding indicate that clear promise exists for the exploitation of coprostanol as biomarker of ancient human activity inarchaeological survey. Therefore such studies can serve to increase the confidence we place on biomarker-based methodologies for assessing fecal pollution. The application of this methodology has proved a simple and effective way of searching for that pattern in successively more aged deposits either known or suspected to contain fecal material. And the more scientific analysis of the soils will be showed to utility of the area ancient dietary life style, ancient environment.
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조규혁,최지선,박대우,이한형,정용재,Cho, Gyu Hyuk,Choi, Ji Sun,Park, Dea Woo,Lee, Han Hyoung,Chung, Yong Jea 한국문화재보존과학회 2021 보존과학회지 Vol.37 No.5
본 연구에서는 전통방식으로 재현한 아교를 대상으로 가죽부위에 따른 다양한 추출조건별 특성변화를 확인하고자 하였다. 평균분자량(Mw, Mz)은 추출시간에 따라 증가하였으며, 다분산성(PDI)은 추출시간에 따라 증가하다 추출 48시간에서 감소하였다. 평균분자량과 PDI 모두 가죽부위별 차이는 없었지만, 개체별로는 총분자량 차이가 있었다. 추출물의 차이는 아교(젤라틴)를 대표하는 Amide 영역들을 통해 비교한 결과, 추출시간에 따라 뱃가죽의 삼중나선구조가 파괴되는 것이 확인되어 가죽부위별 차이점이 확인되었다. 물성평가 결과, 황색도는 추출시간이 증가할수록 높아졌고, 점도는 분자량의 변화와 비례하지 않았다. pH는 화학적 전처리가 없는 생산아교의 일반적인 특징과 동일하게 나타났다. 각 추출조건에 따른 생산아교의 특징들을 전체적으로 분석한 결과, 소 개체별 차이가 큰 영향을 미쳐 소량 추출의 경우 일정한 품질을 유지하기 힘들다는 것을 확인하였다. 추후 더 다양한 추출조건에 대한 연구가 진행되어 일정한 품질을 가진 전통아교의 보급을 기대한다. We investigated the properties of Korean traditional animal glue which are associated with the use of different parts of cattle hide and extraction conditions. Both average molecular weight(Mw, Mz) and polydispersity (PDI) of the animal glue increased with extraction time, whereas only PDI decreased after 48h. There were no differences in the average molecular weight and PDI for the different cattle hide parts used, although a individual difference was observed with regard to total molecular weight. Differences in extracts over time were compared by investigating the amide regions representing the gelatien component of the animal glue. The triple helix structure of the belly skin deteriorated in a manner proportional to the extraction time, and differences were observed for each cattle hide part. The yellowness increased with the extraction time; however, the viscosity was not proportional to the average change in molecular weight. This study has some limitations because of difficulties in the quality control of cases where small amounts of glue were extracted as small differences might impact the overall results considerably. Further research exploring various extraction conditions is required to ensure the prodiction of traditional animal glue with optimum qualities.
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소맥전분 풀의 이화학적 특성 연구 : 수침기간이 2년 이하인 풀을 중심으로
김민정(Min Jung Kim),남서진(Seo Jin Nam),정용재(Yong Jea Chung) 한국펄프·종이공학회 2010 한국펄프·종이공학회 학술발표논문집 Vol.2010 No.10
There are lots of cultural property that consist of paper or silk. and structural strengthening named "bae-jeop" is carried out during conservation treatment. During conservation treatment, we use adhesive. This is very important as well as paper used during conservation treatment. Because it has a role to connect between paper and the work. Study on the making method of adhesive or the adhesive has been continued. However, research trend have been focused on the characteristics according to protein content and characteristics of the long soaking period. In this paper, we do research about physicochemical characteristics of wheat starch adhesive under two years soaking period which have not been studied and investigate the subsequent changes that occur during the manufacturing process for the adhesive.
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