• Title/Summary/Keyword: white paper

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Manufacture Technology Development of Paper Mending Tape for Conservation of Archive Document (종이 기록물 보수용 안전 테이프 시제품 제조 기술 연구)

  • Shin, Joung-Soon;Yoo, Sun-Kyun
    • Journal of the Korean Graphic Arts Communication Society
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    • v.29 no.3
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    • pp.41-53
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    • 2011
  • For manufacturing the tape for repairing archival documents, we tested ten carrier candidates for selecting best material. The tensile strength, transmissivity, stability of deterioration, and processability were determined. Physical-chemical characteristics and stability of deterioration was best to the Hanji. Tensile strength and transmissivity was best in tracing paper, but was low in oil paper, white sketch paper, lyon coat paper. Synthetic carrier to tensile strength showed higher than paper carrier and to the transmissivity showed 2-8 times higher than paper carriers. The tracing paper to the transmissivity was 10 times higher than others. To determine characteristic of conservation to the selected carriers, stability of deterioration was examined at conditions of $90^{\circ}C$ for 15 days. Oil paper and white sketch paper turned strongly yellowish. Cellulopane, Felt, and Cpp film showed stable stability of deterioration, but deformation like wrinkles. PET film and Syntheletic film showed excellent conservation characteristics without any change of exterior. Test of adhesive uniform between carriers and adhesive processability was performed. PET film > Syntheletic film > Tracing Paper in order were determined. Ununiformal adhesive characteristics appeared to Hangi. Accordingly, we thought that Hanji as carrier material might be unsuitable because of low adhesive processability.

Type of Foreign Materials in Waste Paper Used for the Manufacture of Linerboard and Physical Properties of Recycled Fibers (골판지 원지 제조용 압축고지 내의 이물질 종류 및 재생섬유의 특성)

  • Yoon, Seung-Lak;Hwang, Jong-Yeol
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.39 no.3
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    • pp.1-11
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    • 2007
  • To evaluate the quality of waste paper used for the manufacture of linerboard, the types of papers and foreign materials in compressed waste paper currently used were investigated. The recycled fibers were obtained from printing paper, newspaper, wrapping paper, white coated paperboard and corrugated container. Their fibers were observed by using a microscope, and the mechanical properties of the recycled papers manufactured from the recycled fibers were investigated. The compressed wastepaper was composed of 54% paperboard, 20% printing paper, and 20% newsprint. The content of foreign materials was about 4%, showing higher contents compared to 1% of foreign substances provided by Korea paper manufacturers' association. The types of foreign materials were various, which include vinyls, plastics, metals, woods, styrofoams, and cloths. Sound fibers were generally observed in the recycled fibers of printing papers and wrapping paper. The recycled fibers of white coated board, corrugated container and newsprint showed to be generally damaged. The whiteness of each recycled fiber were highly affected by pulp bleaching and ink-particle mixing conditions. The values of breaking length and burst index were lower than those for corrugating medium and liner board specified in KS. Although the anatomical characteristics of recycled fibers varied, their strengths appeared to be similar. This result may be explained by the use of non-deinked fiber.

Application of White Light Interferometery Method for the Measurement of Surface Micro-structure of Paper Products and Prints (백색광 주사간섭법을 이용한 표면미세형상 측정과 그 적용)

  • Sung Yong Joo;Ryu Jeong Yong;Song Bong Keun
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.36 no.4 s.107
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    • pp.33-40
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    • 2004
  • A white light interferometery (WLI) method for investigating surface microstructure was introduced. Brief description of the principle of this method was provided. The surface structure of various samples, for example, a liner board paper, a pigment coated paper, a intaglio printed paper and a polymer laminated paper were tested and characterized with the WLI method. The data showed the WLI method provided very detailed information about surface topography, which were little affected by the surface condition such as color, opacity, roughness, etc. The data stitching mode of the WLI method could provide high spatial resolution over a large field-of-view, which made it possible to obtain the statistically valid results. Fast and high repeatability also made this method a promising way for investigating the surface micro-structure of paper products and prints.

Component Analysis of Paper Mulberry Bark for the Automation of Bark Peeling Process (닥나무 박피 자동화를 위한 닥 인피의 구성성분 분석)

  • Seo, Jin-Ho;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.43 no.1
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    • pp.74-82
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    • 2011
  • The bast fiber of Paper mulberry has been generally used as a fibrous raw material in traditional Hanji-making. Nowadays, its uses is expanded to different special purposes such as paper mulberry yarn, laminated paper, antimicrobial paper depending on its application. Despite the wide array of the use of mulberry fibers, it is still limited due to some difficulties in the automation process of manufacturing works. This study is focused on the analysis of chemical components and morphological properties of paper mulberry bark for the automation of bark peeling process. The bast tissue of paper mulberry was separated in three plies; black outer layer, green inner layer, and white inner layer. The total lignin content, holocelluloses, extractives and ashes, and the anatomical structure of the three layers in mulberry bark tissue were investigated. The analysis showed that the black outer layer is composed of about 50% of total lignin content, whereas the white inner layer is composed of about 90% of holocellulose content.

Renewable Energy Policy in the UK - with Focus on Biomass (영국의 신재생에너지 정책-바이오매스를 중심으로)

  • Ryu, Chang-Kook
    • Journal of Hydrogen and New Energy
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    • v.19 no.3
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    • pp.260-265
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    • 2008
  • As one of renewable energy sources, biomass is playing a major role in reducing the greenhouse gas emission in the UK. The country currently produces about 4.5% (18.1TWh in 2006) of the total electricity generation from renewables, where biomass-based sources accounts for 50% of the amount and the remainder mostly from hydro and windpower. In 2007, the UK government has announced its new energy policy through the Energy White Paper, which includes an ambitious national target of 60% cuts in carbon emission by 2050. Complementary strategic plans in key renewable energy technologies accompanied the Energy White Paper, including biomass strategy, waste strategy and low carbon transportation strategy. This paper summarizes the current status and policy of UK for renewable energy production with focus on the use of biomass and bioenergy.

A Strange Encounter: 'Blackness' and Postcoloniality in Korean Military Camptown Literature

  • An, Jee Hyun
    • Journal of English Language & Literature
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    • v.64 no.1
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    • pp.39-60
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    • 2018
  • This paper closely examines the textual representations of 'blackness' in Korean military camptown (gijichon) literature from 1950's to 1980's, and argues that the animalistic portrayals and almost compulsive bestialization of blacks reveal an attempted hierarchization of Koreans above blacks with an underlying belief in white supremacy in coming to terms with Korean postcolonial subjectivity. Going against the grain of nationalist readings of gijichon literature, which largely celebrate its resistance against US domination, this paper problematizes racialized postcoloniality emerging out of these stories that span over four decades. The paper demonstrates that the racist depictions of blacks as the Other and even sympathetic portrayals of black soldiers all work to legitimate white supremacy and hierarchize race in the formation of Korean postcolonial subjectivity, paradoxically reinforcing and perpetuating colonial racial ideologies.

Naturalized Women: Ecofeminism in Toni Morrison's A Mercy

  • Yang, Jeongin
    • American Studies
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    • v.44 no.2
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    • pp.211-229
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    • 2021
  • Toni Morrison's A Mercy (2008) describes Jacob Vaark, an early settler from England, and his grand house that symbolizes the American Dream in the 1680s. The source of his success is colonialism and slavery, as revealed by four female characters-a white Englishwoman Rebekka and three non-white women Florens, Sorrow, and Lina. Analyzing how the novel compares the women's experiences with nature and natural objects, this paper draws on ecofeminism as a theoretical frame of analysis to examine the novel's hitherto overlooked representations of naturalized women and feminized nature. The paper analyzes how the novel represents oppressions and exploitations of the four women in relation to nature that is similarly appropriated and developed by European men. The paper maintains that the novel does not represent these "naturalized" women as powerless and passive but portrays them as growing characters who resist patriarchy, colonialism, and capitalism.