Studies on the Physical and Chemical Properties of Hanji for Rehabilitation and Restoration of Cultural Properties

Haneul, Son; Soyun, Jeong; Gyeongju, Jang; Seonhwa, Jeong

doi:10.7584/jktappi.2019.12.51.6.175

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…따라서 종 이의 강도나 내절도가 밀도와 밀접한 관련이 있음을 알 수 있다 (Jeong and Cho, 2013). 한지는 초지방법에 따른 섬 유 배향성이 다르게 나타나기 때문에 물질 방향(LD)과 물 질 수직 방향(CD)의 내절도 차이가 확연히 다르게 나타난 다 (Son et al, 2019). 내절도 측정방법과 결과 가공에 있어 서 원지, 열화지, 산성열화지 등 시료의 상태에 따라 4.91 N, 9.81 N 하중을 달리 적용한 연구 (Jeong et al, 2015;Shin, 2014) 7).…”

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Proposal of the Measurement Conditions for Hanji–Determination Folding Endurance

Kim¹,

Kim²,

Son³

et al. 2021

J. Conserv. Sci

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This study aims to optimize the measurement conditions of handmade Hanji paper to reduce the time required for measurement while meeting folding endurance standards, for various basis weights. Thirteen types were selected, including 12 types of Hanji with grammages of 17 g/m2, 30 g/m2, and 45 g/m2, and one type of 75 g/m2 copy paper, and 24 sheets were prepared in the laid and chain directions. Subsequently, folding endurance experiments at different load (14.72 N, 9.81 N, 4.91 N) and specimen width conditions (15 mm, 10 mm, 5 mm) were performed, using a 4-MIT folding endurance tester. The results showed that, for specimen widths of 15 mm and 10 mm under a load of 4.91 N, the folding endurance falls within the reference range (10∼10000 times). In particular, reduced folding endurance range and measurement time were observed at a width of 10 mm under a load of 4.91 N. Moreover, the endurance trend lines based on the average values of load and specimen width ranges enabled the prediction of the folding endurance within those ranges, according to the decreasing slope. Furthermore, for a specimen width of 15 mm under a load of 4.91 N, the folding endurance in the comparison group (35 to 17723 times) significantly exceeds the upper limit of the reference range (10∼10000 times). Therefore, the measurement conditions of 4.91 N with a specimen width of 10 mm are proposed.

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