• Title, Summary, Keyword: Hanji

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Evaluation of the Beeswax Applying and Dewaxing Technique of Hanji, and Their Ageing Behaviors (한지의 밀랍 및 탈랍처리 기법과 열화거동 평가)

  • Kang, Kwang-Ho;Lee, Geum-Ja;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.42 no.3
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    • pp.58-66
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    • 2010
  • The Annals of beeswax applied-Joseon Dynasty have some serious damages such as cracks, brown, red or black spots, and discolorations by chemical and biological degradation, but others without any beeswax application have still been keeping good quality during over several hundred years. It would be convinced that the beeswax applied in the Annals resulted in these deteriorations. Therefore, in order to focus on the aging mechanism and conservation techniques for the beeswax-applied Annals of Joseon Dynasty, the beeswax applying and dewaxing techniques of Hanji were tried by auto bar coater with a hot plate, and by heat-pressure sensitive extracting treatments. The ageing behaviors of beeswaxed Hanji and dewaxed Hanji were investigated by measuring the changes of physical, optical, morphological, and chemical properties, through accelerated ageing treatment in dry oven at $150^{\circ}C$ during 48 hours. Consequently, the ageing actions of beeswaxed Hanji were even faster than that of Hanji. The optimum dewaxed amounts from beeswaxed Hanji was also obtained in pressure of $40\;kg_f$ under heating conditions.

A Study on the Relationship Between the Concern about Well-being Lifestyle and the Perceived Image of Hanji Fiber (웰빙 라이프 스타일 관심과 한지 섬유 이미지 지각의 상관관계 연구)

  • Ju, Jeong-Ah;Shim, Joon-Young
    • Korean Journal of Human Ecology
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    • v.19 no.2
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    • pp.389-398
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    • 2010
  • This study examines the relationship between the concern about well-being lifestyle and the perceived image of Hanji fiber. A survey was conducted among male and female consumers aged 20 and over in Jeonju and Daejon from January 4th to 11th, 2008. A total of 168 responses were analyzed by using descriptive statistics, factor analysis, and ANOVA via the SPSS ver. 12. As a result, four factors were determined in the concern for a well-being lifestyle; product consumption, enjoying culture, using therapy and managing the household. The perceived image of Hanji fiber were classified into four elements; traditional, high-quality, functional and popular images. Among the factors of the concern for a well-being lifestyle and the perceived image of Hanji fibers, a partial relationship was observed. There is a positive relationship, especially between the product consumption factor of a well-being lifestyle and the high-quality and functional image of Hanji fiber. Also, there was a positive relationship between the factor of managing the household and the traditional image of Hanji fiber. However, the therapy interest factor of a well-being lifestyle was negatively related to the traditional image of Hanji fiber.

Improvements in the Physical Properties of Hanji by Using Red Algae Pulp

  • Seo, Yung-Bum;Kim, Young-Wook;Lee, Min-Woo;Jung, Sun-Young
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.41 no.5
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    • pp.33-37
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    • 2009
  • Hanji is a traditional Korean handmade paper, made of bast fibers of the paper mulberry. Its fiber furnish is much more expensive than wood fiber furnish. Hanji with a low basis weight requires additional opacity and smoothness for better writing and printing. Filler such as calcium carbonate can not be used to raise the opacity of Hanji because of its low retention in low basis weight paper and the high freeness of the Hanji fiber furnish. Addition of red algae pulp, which is prepared from marine red algae to the Hanji fiber furnish negated retention problems happening in the case of mineral filler addition, and produced a substantial improvement in the opacity and smoothness of Hanji. The higher retention was due to the much larger size of the red algae fibers compared to the mineral fillers. The improvement in opacity and smoothness were also due to the shape of the red algae fibers: that red algae fibers are narrower in widths and shorter in lengths than wood fibers results in increased surface area and smoothness.

Aging Behavior of Beeswaxed Hanji(II) - Acidic and Alkaline Aging of Beeswaxed Hanji - (밀랍지의 열화 거동 (제2보) - 산 및 알칼리에 의한 밀랍지의 열화 -)

  • Kim, Kang-Jae;Lee, Min-Hyung;Eom, Tae-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.43 no.3
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    • pp.66-72
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    • 2011
  • The annals of Joseon Dynasty is one of UNESCO's Memory of the World Register. For the safety preservation of the waxed annals of Joseon Dynasty, the acidic and alkaline aging mechanism of beeswax and beeswaxed Hanji has been investigated. The weight loss of beeswaxed Hanji by the acidic aging was higher than those of alkaline beeswax. The acid value and relative intensity of carbonyl groups in beeswax were slowly increased with aging time. The strength of dewaxed Hanji was decreased with aging time. The significant changes of crystallinity of dewaxed Hanji by acidic and alkaline aging were not observed.

Aging Behavior of Beeswaxed Hanji(III) - Aging of Beeswaxed Hanji with $CO_2$, $O_3$, $SO_2$ and $NO_2$ Gas - (밀랍지의 열화 거동 (제3보) - $CO_2$, $O_3$, $SO_2$$NO_2$에 의한 밀랍지의 열화 -)

  • Kim, Kang-Jae;Lee, Min-Hyung;Eom, Tae-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.43 no.3
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    • pp.73-79
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    • 2011
  • The annals of Joseon Dynasty is one of the UNESCO's Memory of the World Register. For the safety preservation of wax applied volumes of the annals of Joseon Dynasty, the aging behavior of beeswax and beeswaxed Hanji with $CO_2$, $O_3$, $SO_2$ and $NO_2$ gas has been evaluated. The weight loss of beeswaxed Hanji after aging under ozone gas were increased because of strong acidity of ozone. The acid value and relative intensity of carbonyl groups in beeswax were stabilized with aging time. The physical strength of dewaxed Hanji after ozone aging were rapidly decreased by aging time. The crystallinity of dewaxed Hanji were stabilized at all aging times.

New Korean Traditional Papermaking From Morus spp.(II) -Properties of the Hanjis Made from Bast Fiber and Whole Stalk Fiber- (뽕나무를 이용한 새로운 한지의 제조(제 2 보) -인피부 및 전간부 섬유.한지의 특성)

  • 최태호;조남석
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.31 no.4
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    • pp.84-92
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    • 1999
  • Excellence of the Korean traditional paper(Hanji) can be proved by literatures and legacies handed down from generations. However, with the problems pertaining to a majority of traditional manufactures, Hanji industry was declined because of low productivity, insufficient supply of raw material , and reduced demand. therefore, modernizxation of the Hanji technology and development of new uses are very important. This study was carried to investigated the papermaking characteristics of Morus spp.(M.alba, M.Bombycis, and M.Ihou) for new Hanji, modernize manufacturing process of Hanji by grafting on developed modern pulping and papermaking technology, develop the various uses, and establish the foundation for development of high value-added products. Hanji is made from M.Ihou, while stalk , and sulfomethylated pulp gave better sheet formation and higher brightness than those of the others. Physical properties of Hanji which made from bast fiber pulps were better than those of whole stalk pulps. Hanji which made from M.bombycis bast fiber and whole stalk pulps were not so good sheet strength as other species. Sulfomethylated whole stalk pulps were shown better sheet strength than alkali and alkali-hydrogen peroxide whole stalk pulps.

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Knitwear design using Hanji yarn - Purpose of promoting the variety of eco-fashion design - (한지사를 이용한 니트웨어 디자인 연구 - 에코 패션 디자인의 다양성을 도모하는 측면에서 -)

  • Kim, Ki Hoon
    • The Research Journal of the Costume Culture
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    • v.21 no.4
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    • pp.511-520
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    • 2013
  • This study examines the development of knitwear design using environmentally friendly Hanji (Korean traditional handmade paper) yarn. While its environmentally friendly features make Hanji yarn suitable for eco-fashion design, Hanji products, generally produced in limited quantities, are highly unlikely to become a commercial success due to their high prices. Therefore, a new technology allowing the production of low-cost Hanji yarn is in high demand, as is its application across multiple products in addition to knitwear. The significance of this study lies in that it suggests ways to design knitwear which reflect the versatility of modern eco-fashion to meet the needs of consumers. This study presents knitwear designs, specifically party wear and everyday fashion, that utilize the advantages of Hanji yarn and represent 2013 S/S color trends. Two outfits will be featured - one for women in their 20s and 30s and the other for women in their 30s and 40s. Also, this paper includes a literature review and an accounting of online research on Hanji yarn and eco-fashion designs.

Studies on Physical Properties and Printability of machine-made Hanji Made by Different contents of Paper Mulberry (닥섬유 혼합 비율에 따른 기계한지의 물리적 특성 및 인쇄성에 관한 연구)

  • Kwon, Oh-Hun;Kim, Hyun-Chel
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.44 no.2
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    • pp.1-7
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    • 2012
  • Hanji made of mulberry fibers has the lower printability due to their long fiber length, the diffusible property of ink, and low smoothness. This study was carried out to analyze the physical and optical properties of machine-made Hanji controlled by the different contents of paper mulberry 20, 40, 60, 80 and 100%. In this study, the results of comparing machine-made Hanji controlled by the different contents of $Paper$ $mulberry$ with commercial paper and inkjet coated paper are as following: Tearing strength of machine-made Hanji is higher than domestic paper and inkjet coated paper. By increasing paper mulberry contents of machine-made Hanji appeared that tensile strength increased and smoothness gradually decreased. Printability of machine-made Hanji is less than domestic paper and inkjet coated paper. However, there were significant possibility to use for printing paper.

Evaluation of Dewaxing and Strengthening Treatments for Stabilization of Aged Beeswax-treated Hanji (열화 밀랍지의 탈랍 및 강도보강 처리 안정성 평가)

  • Jeong, Hye Young;Go, In Hee;Nam, Hyun Ju;Choi, Kyoung Hwa
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.45 no.6
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    • pp.10-16
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    • 2013
  • This study aims to carry out the final evaluation on the deterioration stability of dewaxing and strengthening treatments devised to conserve and restore the beeswax-treated volumes of the Annals of the Joseon Dynasty. Thus, this study artificially deteriorated dewaxed Hanji, strengthened Hanji and beeswax-treated Hanji with optimized processing conditions applied, and comparatively analyzed the deterioration characteristics of each kind of Hanji. As a result of this study, it turned out that there was the loss of physical strength and the value of $L^*$ was increased and the values of $a^*$ and $b^*$ were decreased from removing beeswax after dewaxing by supercritical fluid extraction (SFE). Also deteriorated strength during dewaxing was reinforced by strengthening treatment with methylcellulose and it showed higher strength than beeswax-treated Hanji. From the evaluation on deterioration stability after dewaxing and strengthening, it turned out that deterioration stability of strengthened Hanji is the superior. Therefore, it is presumed that conservation of aged beeswax-treated Hanji can be improved and extended when dewaxing and strengthening are applied under optimum conditions.

Sheet Formation Properties of Morus Hanji (뽕나무 한지의 지합특성)

  • Yi, Il-Roh;Cho, Nam-Seok
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.38 no.3
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    • pp.47-60
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    • 2006
  • This study was carried out to investigate the sheet formation properties of Morus Hanjis, made of bast and whole stalk pulps by different pulping methods, such as alkali, alkali-peroxide and sulfomethylated pulping. Two species of Morus, M. alba and M. lhou, were used. Effect of morphological properties of pulp stocks on the sheet formation and its gray levels based on optical property were evaluated using an Image analyzer. In addition, the effect of fiber distribution index(FDI) which was calculated from tile data of Confocal laser scanning microscopy(CLSM) on the sheet formation and optical properties of Morus Hanji were also discussed. On the sheet formation, Hanji from whole stalk pulp was superior than that of bast pulp. The more the sheet formation improved, the more paper opacity decreased. In the aspect of Hanji's surface characteristics analyzed by an Image analyzer, the average gray level and its standard deviation of Hanji from the whole stalk pulp were rather lower than those of bast pulp because of better sheet formation of the former. However, high brightness Hanji showed high value of gray level. The sheet formation and paper opacity were increased with the decrease of standard deviation of gray level. From these results, gray level measurement could be used to predict the paper opacity as well as sheet formation. Sheet formation of whole stalk Hanji and its FDI measured by CLSM were higher than those of bast fibers. In conclusion, the sheet formation and opacity of Hanji could be evaluated by standard deviation value of Hanji's gray level using an Image analyzer and by fiber distribution index using CLSM.