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http://dx.doi.org/10.12654/JCS.2021.37.6.08

Proposal of the Measurement Conditions for Hanji-Determination Folding Endurance  

Kim, Myoung Nam (Restoration Technology Division, National Research Institute of Cultural Heritage)
Kim, Ji Won (Restoration Technology Division, National Research Institute of Cultural Heritage)
Son, Ha Nuel (Restoration Technology Division, National Research Institute of Cultural Heritage)
Jeong, Sun Wha (Restoration Technology Division, National Research Institute of Cultural Heritage)
Publication Information
Journal of Conservation Science / v.37, no.6, 2021 , pp. 689-700 More about this Journal
Abstract
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.
Keywords
Hanji; Folding endurance; Load condition; Specimen width conditions; Measurement conditions;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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