• Conservation Science in Museum
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• v.28
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• pp.89-108
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• 2022

Among about 500,000 characters in metal types in National Museum of Korea, this study conducts a statistical analysis of 62 metal types from the early Joseon Dynasty, including 33 gabinja (甲寅字) types and 29 eulhaeja (乙亥字) Hangeul types by examining the shape, measuring the specific gravity, and identifying the components based on previously-studied Joseon metal types. Among them, 33 gabinja types and 24 eulhaeja types were made of two-component bronze (copper and tin) (Group A), and four eulhaeja types were produced with three-component bronze (copper, tin and lead). (Group B), and one eulhaeja type was created with two-component bronze (copper and tin) with a high tin content (Group C). By comparing with imjinja (壬辰字) types of the late Joseon Dynasty based on multiple statistical analyses of type components, this study confirms that late-Joseon types have low copper content and high zinc and lead content, and therefore it may be possible to distinguish between the types of early and late Joseon Dynasty.

• 프린팅코리아
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• s.68
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• pp.78-79
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• 2008

청주시의 의뢰로 2007년 4월부터 금속활자 복원에 나선 경북대 영남문화연구원과 청주대 한국문화연구소, 한국학중앙연구원은 세종때 만들어져 임진왜란 이후까지 사용된 갑인자 계열 활자 등 10종의 금속활자를 복원해 최근 고인쇄박물관에서 공개했다. 이번에 복원된 금속활자는 초주갑인자 등 갑인자 계열 활자 6종과무신자 한글활자, 갑인자 한글활자, 경서자 한글활자, 을해자 한글소자 등 모두 10종이다.

• Journal of Korean Library and Information Science Society
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• v.40 no.4
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• pp.427-456
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• 2009

Jwa-lee Wonjong Gongsin-Nokgwon(佐理原從功臣錄券) is a book which recorded the titles of position and the names of retainers who made Sung-jong into Chosun dynasty's king. This study aims to research into existing only 1 books of Jua-ik Wonjong Gongsin-Nokgwon, which were to analyze the reasons of grant, structure and forms, the characteristics of meritorious retainers' official positions and social status. As the result, Jwa-lee Wonjong Gongsin-Nokgwon is the metal typologic book which was made up Eul-hae(乙亥) letter type. The structure of the Jwa-lee Wonjong Gongsin-Nokgwon was composed of the beginning(卷首) the body(本文) the end(卷末). Jwa-lee Wonjong meritorious retainers formed the total of 1,059 persons(1st grade : 64 persons, 2nd grade : 272 persons, 3rd grade : 723 persons) with 513 official titles. Also an analysis of their family name confirmed that 1,059 persons were "Lee" which constituted the largest group(21%), "Kim" were second group(15%).

• Journal of the Korean Society for Library and Information Science
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• v.49 no.1
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• pp.223-246
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• 2015

This study examined the characteristics of Buddhist books printed using metal type during the Joseon Dynasty period from a bibliographical perspective. It was found that there are 36 kinds of Buddhist books published using metal type during the Joseon Dynasty period that currently exist. In terms of the types used for publication, there were 9 kinds of printed editions by Gapinja, 13 kinds of printed editions by Eulhaeja, 2 kinds of printed editions by Jeongchukja, 3 kinds of printed editions by Eulyuja and 9 kinds of printed editions by Jeonsaja. Among them, The Buddhist books printed using Eulhaeja were 36 % of total with the highest quantity of 13 kinds. In terms of periods of publication, it was found that 27 kinds and 9 kinds of Buddhists books were published respectively in the first and latter parts of Joseon Dynasty periods. Among them, there were 19 kinds of metal type book editions published during the King Sejo period that occupied 70% of total. It appears that such phenomenon was a result of King Sejo's abnormal enthronement and Buddhism-friendly tendency.

• Journal of Conservation Science
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• v.25 no.2
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• pp.207-217
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• 2009

After replicating 10 bronze types such as Gyemija, Gyeongjaja, Eulhaeja, etc. before the Imjin war, we studied the change of microstructure from each casting process, method, and alloy ratio by Gyechukja replicated from "Donggukyeojiseungnam". We selected the average of compositions of Eulhaeja in the National Museum of Korea as the standard(Cu 86.7%, Sn: 9.7%, Pb: 2.3%) of bronze types, so we decided on the alloy's composition of Cu 87%, Sn 15%, Pb 8% added to 5% Sn and Pb contents because of evaporating the Sn and the Pb. Before replicating major metal types, we made master-alloy first, melting it again, and then replicated metal types. The composition of the 1'st replicated Gyechukja showed the range of Cu 85.81~87.63%, Sn 9.27~10.51%, Pb 3.05~3.19%. The 2'nd replicated Gyechukja made using the branch metal left after casting the 1st replica. The 2nd replicated Gyechukja showed the composition range of Cu 87.21~88.09%, Sn 9.06~9.36%, Pb 2.80~3.05%. This result decreases a little contents of Sn and Pb as compared with metal types of the 1st replica. However, it's almost the same as the Eulhaeja's average composition ratio in the National Museum of Korea. As a result of observing the microstructure of restored Gyechukja, it showed the dendrite structure of the typical casting structure and the segregation of Pb. There is no big difference of microstructure between the 1st and the 2nd restored metal types, even though the 2nd restored types partially decreases the eutectoid region in comparison with the 1st types. The systematic and scientific restoration experiment of metal types using Joseon period will be showed the casting method and alloy ratio, and this will be of great help to the study of restoration metal types in the future.