• 한국문화재보존과학회:학술대회논문집
• /
• 2006.11a
• /
• pp.193-200
• /
• 2006

• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.46 no.5
• /
• pp.88-97
• /
• 2014

For the purpose of reproduction of traditional gold thread, the artifact investigation was organized for 70 cases (109 pieces) of relics from Korea, China and Japan. In most cases, the main backside material of gold thread from Korea was the bast fibers from paper mulberry. In this study, the optimum sheet-making of Hanji for gold thread reproduction was tried by controlling several process factors of Hanji such as the cooking and beating time of paper mulberry fibers, the number of sheet-making ply, and converting method (Dochim). Tensile index, folding endurance and compressive strength of Hanji showed differences according to the correlation between cooking and beating time, and application of converting method (Dochim), while bending stiffness fell with decrease of thickness. These results can be applied to consider manufacturing factors to make Hanji for the production of gold thread.

• Journal of Conservation Science
• /
• v.34 no.2
• /
• pp.77-85
• /
• 2018

In order to understand the influence of light artifact discoloration, priority must be given to the reaction characteristics of the light the materials constituting the product. In this study, we focus on two representative medium, animal glue and linseed oil which constitute the colored layer of the painting relics. This study is based on an accelerated degradation test using two types of light emitting diods (LEDs) with different wavelength characteristics. In the experiments, discoloration appeared markedly in the animal glue and linseed oil under accelerated aging test conditions using Blue LED. Among the two types of LEDs, the degree of discoloration of the material was much higher with the Blue LED having the total radiation flux (mW). This indicates that the discoloration of painting artifacts such as animal glue and linseed oil is more significantly influenced by the total radiation flux (mW) of the light source than the total luminous flux (lm).

• Journal of Conservation Science
• /
• v.11 no.1 s.14
• /
• pp.28-37
• /
• 2002

The cleaning in conservation treatment of cultural heritage is very important process. For the best conservation treatment of cultural heritage, except having a good detergency, the cleaning agent must be able to keep the heritage from the secondary deposition and re-soiling, damage and etc. In this paper, the dust (lichen, algae, dust, etc.) on the surface of stone made heritage was treated with some kinds of solvents and analyzed with FT-IR to develop a cleaning agent for stone made cultural heritage. And the cleaning ability to the dust and the corrosion ratio to the granite of the cleaning agent was investigated. Nonionic surfactants were good for treatment of stone-made cultural heritage. The reason is that nonionic surfactants are stable in acidic solution, and possess low reactivity with the compound of stone and low possibility to the second contamination, and build up the reactivities of acids and oxidants. A new cleaning agent composed with $H_2O_2/HF/NP-10$ shows a good cleaning ability for the conservation treatment of stone made cultural heritage.

• Journal of Conservation Science
• /
• v.35 no.3
• /
• pp.245-251
• /
• 2019

In this paper, conservation treatment processes for the wooden furniture in the Presidential Archives are introduced. Conservation treatment strategies for modern wooden cultural heritage have been increasingly studied. The current study uses materials similar to those used by the existing conservation treatment method. Material analysis showed that the chair(Lee136-2) and desk(Yun37) in the Presidential Archives are made of Dipterocarpaceae, and both are coated with two layers of varnishing. FT-IR analysis showed that the varnish has a similar spectrum to that of a nitrocellulose-based lacquer(Lee136-2) and top coat(Yun37) and confirmed that a synthetic material was used. Pollutants had adhered to the surface of the wooden furniture and it was also in structurally unstable condition because of cracks and damage to the varnish and wood. Therefore, a conservation treatment was carried out to restore the damaged areas to their original appearance using similar kinds of materials, based on data obtained by materials analysis.

• Journal of Conservation Science
• /
• v.23
• /
• pp.95-102
• /
• 2008

To investigate bioactive materials for development of natural conservative agent on organic cultural heritage, methanol extracts from 11 wood species which populate in Korea were screened for antifungal and insecticidal activity against 9 wood contaminant fungi and adult of Lasioderma serricorne. Antifungal activity of extracts was tested by using paper disc soaking method and feeder strip test against wood-rot fungi and wood surface contaminant fungi. Among these extracts, the most significant antimicrobial activity was observed from the extract of Phellodendron amurense at 5 mg/disc against Coniophora puteana, Lentinus lepideus, Tyromyces palustris and Aspergillus niger. The insecticidal activity of extracts was examined by topical application against L. serricorne adults. The extracts from Taxus cuspidata and Abies holophylla gave 56.7 % mortality at 25 ${\mu}g$/adult for 24 hr. From these result, the methanol extract from T. cuspidata, A. holophylla and P. amurense described could be useful for conservation of organic cultural heritage against biological deterioration by insect and wood contaminant fungi.

• Korean Journal of Heritage: History & Science
• /
• v.55 no.2
• /
• pp.102-111
• /
• 2022

Termites are a group of social insects that are one of the primary causes of damage to wooden architectural heritage. Since termite damage impairs the authenticity and structural stability of cultural heritage, it is imperative to prevent it. This study examines the extent of termite damage to wooden architectural heritage as part of efforts to prevent termite damage to nationally designated wooden architectural heritage sites across the country. The extent of termite damage to each cultural heritage was assessed qualitatively and quantitatively and comparatively analyzed by region using the results of the "Investigation on Biological Damage to Wooden Architectural Heritages" conducted by the National Research Institute of Cultural Heritage from 2016 to 2019. It involved 362 nationally designated wooden architectural heritages(25 national treasures, 157 treasures, 180 national folklore cultural heritages) and 1,104 buildings. The results were as follows: termite detection dogs reacted at 317(87.6%) of the 362 wooden heritages, with visible termite damage observed in 185 cases(51.1%). Furthermore, termite damage was confirmed using one of two methods(detection dogs or visual inspection) in 324 cases(89.5%). Of the 1,104 buildings, termite detection dogs reacted at 668(60.5%), while 339(30.7%) showed visible termite damage. Employing one of the two methods, damage was confirmed in 702 buildings(63.6%). The country was categorized into nine regions(Seoul Metropolitan Area, Gangwon, Chungbuk, Chungnam, Jeonbuk, Jeonnam, Gyeongbuk, Gyeongnam, and Jeju) to examine the termite damage rate and the degree of damage to each cultural heritage according to location. Termite detection dogs reacted to more than 70% of the cultural heritage in all regions. Visible damage was minimal in the Seoul metropolitan area(32.1%) and Gangwon(21.4%) but severe in Chungnam(65.6%), Jeonnam(67.3%), and Gyeongnam(68.2%). By quantifying the degree of termite damage of each cultural heritage as a ratio of the absence of termite damage among the total absence, the average termite damage of the cultural heritage across the country was 9.2%. Regional variance analysis showed that the cultural heritage in Jeonbuk and Jeonnam showed a statistically significantly higher degree of termite damage than the cultural heritage in the Seoul metropolitan area, Chungbuk, and Gyeongbuk. This paper comprehensively analyzed termite damage to nationally designated wooden architectural heritage. The findings are expected to be valuable in establishing policies for the preservation and management of cultural heritage sites in the future.

• 한국문화재보존과학회:학술대회논문집
• /
• 2005.11a
• /
• pp.118-121
• /
• 2005

• 한국문화재보존과학회:학술대회논문집
• /
• 2006.11a
• /
• pp.16-22
• /
• 2006

• The Research Journal of the Costume Culture
• /
• v.20 no.4
• /
• pp.616-620
• /
• 2012

The objectives of this paper are to examine some of the factors which may account for the rise in predominance of British textile manufacture in the eighteenth and nineteenth centuries. This paper identifies a range of important eighteenth century British inventions and associated developments, such as the 'factory' system, which stimulated expansion in textile manufacture in the British Isles and led to the rise in international importance of various 'heritage textile industries', including the Lancashire cotton industry, the Yorkshire woollen and worsted industry, the Dundee jute industry and the Irish linen industry.