• 한국산학기술학회논문지
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• 제10권5호
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• pp.1133-1140
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• 2009

본 이산화황이 잔류하는 한약재를 탕제로 달이는 방식에 따라 효율적으로 제거하는 방법을 찾기 위해 약 달이는 방식을 전통약탕기와 진자약탕기 2종류로 설정하였다. 전통약탕기로 156.4ppm을 함유하는 한약재를 1시간 달였을 때 96.7%의 제거효율을 보였으며, 2시간 달였을 때 100% 제거됨을 알 수 있었다. 전통약탕기 뚜껑을 전통한지, 일반한지, 거름종이, 일반종이를 사용하였을 경우 전통한지를 사용할 경우가 이산화황 제거효율이 가장 우수한 것으로 나타났다. 전통한지의 초기 pH는 10.03으로, 전통약탕기에 이산화황이 48ppm, 193ppm, 753ppm 및 1,506ppm 함유하는 한약재를 넣고 1시간 달인 후 pH 측정결과 9.37, 9.14, 8.9 및 8.03으로 각각 나타났다. 전자약탕기 파이롯트실험은, 전자약탕기로 1시간 약을 달일 경우 82.8%의 이산화황제거율을 보였으며, 약탕기 내부 중판부분에 전통한지, 거름종이, 활성탄, 참숯을 넣고 약을 달였을 때 73.6%, 72.8%, 73.9% 및 69.5%의 제거율을 보여 전자약탕기는 내부에 어떤 물체를 넣었을 경우 이산화황의 휘발을 방해하여 제거를 방해하는 것으로 나타났다.

• 펄프종이기술
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• 제43권4호
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• pp.11-22
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• 2011

Jeonji technique was widely used in general Hanji handicraft including Jihwa handicraft. But the technique itself has not been passed on. By contrast, Jiseung technique and Jiho technique have been passed on and continuously developed. And although the Huji technique has not been transmitted, it should be vigorously used as a technique of producing the frame in order to revive the authenticity of traditional Hanji handicraft. Jumchi technique, a method of using water to connect between layers, is an effective technique of diversely expressing the feel of materials of Hanji craftworks. Modern Hanji handicraft has used the characteristics of paper and paperboard diversely produced nowadays as much as possible, which shows that it is more likely to develop as handicraft.

• 펄프종이기술
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• 제48권3호
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• pp.80-90
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• 2016

The purpose of this study was to investigate the functional properties of natural dyed Hanji for cultural properties conservation and storage. To estimate functional properties of Hanji, antimicrobial, insect repellent test, and Oddy test were executed. Hanji dyed with 10% Golden thread (Coptis chinensis), a natural dye and silver nitrate mordanting showed the most excellent antifungal activities against A. niger, P. chrysogenum, and Trichoderma sp. before and after aging. The insects repellent test followed didn't indicate significant effects on treated Hanji against Lasioderma serricorne, Sitophilus zeamais, and Tribolium castaneum. According to Oddy test result, Hanji dyed with Golden thread and silver nitrate caused no significant corrosions on copper, silver, and lead after aging 28 days.

• Journal of the Korean Wood Science and Technology
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• 제24권4호
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• pp.15-21
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• 1996

This study was carried out to investigate the making method and properties of Hanji(Korean traditional paper) for wallpaper for the purpose of mass production and mass consumption of Hanji. Paper mulberry fiber was longer than wood fiber in length and it had also much extractives and ash in content. Bast fiber was a little damaged in the fibrilation and beating process because it was weak in flexibility and compressive properties. Proper conditions for making two-ply and three-ply Hanji were examined and six kinds of Hanji were made on the basis of the three-ply paper making method. The sample OH(Original Hanji) 2-2 and OH 3-2 among them obtained good results in quality test by appearance from wallpaper makers.

• Journal of the Korean Wood Science and Technology
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• 제37권4호
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• pp.406-413
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• 2009

전통 오방색 중 흑색 재현을 위하여 오배자, 신나무 잎, 감즙, 밤껍질, 묵즙 등을 이용하여 한지에 천연염색을 실시하였다. 흑색 염색을 위해 염료별 단독염색 및 복합염색을 행하였고, 매염제 및 염색순서를 달리하여 색상의 발현 특성을 조사하였다. 아울러 염료의 농도(o.w.f) 변화에 따른 염색 특성을 조사하여 흑색 발현을 위한 최적 염색조건을 구명하였다. 한지의 흑색 천연염색 발현에 있어 오배자가 가장 중요한 염료 물질로 나타났으며, 복합염색의 경우 오배자 염색 $\rightarrow$ 초산구리 매염 $\rightarrow$ 신나무 잎 염색 $\rightarrow$ 철 매염의 순서가 가장 우수한 흑색염색 특성을 나타냈다.

• 펄프종이기술
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• 제42권2호
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• pp.82-87
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• 2010

The Hanji dyed with persimmon juice were useful goods in the past, but they are not widely used nowadays despite of their many strong points such as antibacterial and water-resistant properties. The object of this study is to provide useful data for developing new products by using them. We dyed traditional Korean hand-made papers (Hanji) with colorants extracted from fruits of Diospyros kaki and investigated the effect of various dyeing factors (mordant, mordanting method, pH of dyeing solution, light exposure time etc.) on optical and mechanical properties of the dyed Hanji. Changing mordant affected the color of dyed Hanji. The dyed Hanji after-mordanted with Cu mordant had the highest K/S value and showed the deepest yellow and red shade. The best mordanting method was an after-mordanting. The K/S value of dyed Hanji increased with decreasing pH of dyeing solution. The tensile index and size degree values of the Hanji were increased after dyeing.

• 펄프종이기술
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• 제40권2호
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• pp.43-56
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• 2008

The purpose of the experiment was to evaluate the material stability of the paper of the annals of Joseon Dynasty for the conservation purpose and the categories were as listed below : 1. Procuring traditional Hanji and semi-Hanji from different regional hanji paper mill. 2. Artificial accelerated aging treatment to examination its stability (UV irradiation, dry heat) 3. Analysis of optical, physical characteristic. The suitable Hanji for categories would be used as a reconstruction material for the waxel paper in the papers of the annals of Joseon Dynasty.

• 보존과학회지
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• 제4권1호
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• pp.43-52
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• 1995

This study was carried out to investigate the papermaking characteristics for New Hanji (Korean Paper) products from paper mulberries by new pulping processes. So far wood ash extractives or NaOH only have been used for cooking chemicals at the atmospheric condition. Also bast fibers only have been used as raw materials for Hanji, In this study, as the alternatives to the conventional cooking, alkali, alkali-peroxide and sulfomethylated cookings were applied at the pressurized condition for Hanji pulping, Also bast fibers, woody parts and whole woods are attempting for being utilize as new raw materials for special Hanji. Anatomical and chemical properties of 3 paper mulberry species and their pulping characteristics were analyzed.

• Journal of the Korean Wood Science and Technology
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• 제21권3호
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• pp.67-73
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• 1993

This study was attempted to develop the Special Sheet Former for Hanji (Korean Traditional Paper), which could be easily used anyone who has no any special skill, and to evaluate its sheet forming characteristics. The sheet former for Hanji was designed, manufactured and tested its sheet forming features. This former was resulted in superior even basis weights and good formation of sheets without any special technological experiences, but poor consolidation according to the difficulty of web pressing during dewatering process. Sulfomethylated pulping resulted in the superior pulp with high yield and better quality compared to those of alkali and alkali-peroxide pulps. Since the pulp was so bright, there was almost no need additional bleaching.

• 한국의류학회지
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• 제31권8호
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• pp.1286-1296
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• 2007

Hanji, the korean traditional papers were mostly made from mulberry paper. But the production and demand of hanji have decreased rapidly because mulberry paper yields were insufficient and handworked hanji procedures were complicated. Recently, the researches on hanji were carried out to improve the properties of hanji. Kenaf fibers have been interested as a substitute resource of mulberry paper for hanji production. In this research, Kenai pulps were manufactured with removal methods of lignin or hemicellulose from kenaf fibers and paper mulberry pulps with traditional alkali methods. Kenaf papers, paper mulberry, and kenaf/paper mulberry mixed papers were manufactured with their pulps. The crystallinity, fiber length, color of the pulps and tensile strength, tear strength, water absorption of the papers were investigated. The results were as follow: The removal rates of lignin of chemical retted kenaf fibers with sodium chlorite reaction for 40 minutes were 70% and were higher than 40% of double retted fibers. Paper mulberry pulps has less lignin and hemicellulose than kenaf differently. The crystallinity of paper mulberry pulps were very low with 60%, but kenaf pulps were 90%. The chemical retted CR-40-1 pulps were similar with paper mulberry pulps on fiber length & fibrilation of fibers. Tensile strength of paper mulberry were higher than kenaf papers because of fibrilation of paper mulberry, but tear strength were lower. Tensile strength and tear strength were improved on kenaf/paper mulberry 30/70 mixed papers.