著者

金 鳳庸 磯貝 明 尾鍋 史彦 臼田 誠人

出版者

JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.44, no.2, pp.242-248, 1990-02-01 (Released:2009-11-19)

参考文献数

16

被引用文献数

2

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In the previous papers, we have studied the influence of UV treatments on physical and optical properties of paper, and several characteristic results for UV treatments were obtained. In this paper, therefore, the mechanisms of the changes on physical properties, especially such as double folds, Young's modulus and water absorption values, by UV treatments of paper were examined in terms of molecular-order analyses of pulp and rosin chemicals.Cellulose in amorphous regions and hemicellulose are depolymerized through oxidative and/or radical reactions by UV treatments. This depolymerization leads to the formation of stable intermolecular hydrogen bond by molecular rearrangement, and thus the decrease in hydroxyl groups, which can interact with moisture or water, causes the decrease in hydrophilic properties of paper. This new hydrogen bond formation brings about the increase in Young's modulus, and even the slight decrease in moisture contents of paper probably causes the drastic decrease in double folds. On the other hand, porous structures of paper were found to be unchanged by UV treatments, and cross-linking reactions between cellulose chanis were not likely to form during the treatments.Rosin chemicals are degraded to form hydrophilic groups such as carboxylic acid from their double bonds by UV treatments. This causes the decrease in sizing degrees of rosin-sized paper, while the UV treatments bring about the increase in sizing degrees for rosin-free paper such as neutral paper owing to the formation of the stable hydrogen bond, as described above.

著者

尾鍋 史彦 石井 健三 江前 敏晴 野中 道敬 藤井 里絵 表 尚弘

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.45, no.5, pp.315-333, 2008 (Released:2010-10-15)

参考文献数

7

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This chapter entitled "Paper Media" focuses on a variety of significant subjects of paper media or printing media as well as their peripheral issues. Although "Paper Media" is the sole and universal media selected in the long history of mankind and constitutes one of the essential elements of printing, "Paper Media" had been described only in separate chapters of the past decennial commemorative issues of this journal. However, this 80th anniversary special issue creates an independent individual chapter for "Paper Media". The main reason is the founding of "Paper Media Research Committee" in 2004 in the society (JSPST). Firstly, the reason and the significance for creating an independent chapter for "Paper Media" are explained. Secondly, eight specific topics covering history, characteristics & functions, market & customer, technological evolution, culture & art, environmental issues, theoretical analysis, and future perspective are described as the basis for understanding the specific topics and the contents of "Paper Media Symposia". Thirdly, the personal impressions on the past four "Paper Media Symposia" from 2004 to 2007 are briefly noted. Fourthly, a quick glance over "drupa 2008" held in Germany is mentioned with the view to grasp the forefront of the paper media technology. A variety of unsolved significant problems were emerged from the past four paper media symposia covering an array of versatile topics. The comparative evaluation of paper media with IT-based media as well as the symposia contents helped confirming the superiority of paper media among the present-day multilayered media structure. Finally, an idea for integrating a variety of academic fields related to paper media that leads to construction of "Paper Media Studies" is proposed (written by F. Onabe).

著者

尾鍋 史彦

出版者

一般社団法人 画像電子学会

雑誌

画像電子学会誌 (ISSN:02859831)

巻号頁・発行日

vol.40, no.6, pp.943-948, 2011-11-25 (Released:2012-03-28)

参考文献数

18

著者

尾鍋 史彦

出版者

紙パルプ技術協会

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.75, no.4, pp.350-353, 2021

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<p>古代ギリシアの時代から現代まで,「存在」という問題は対象が認識できるか否かに関わらず哲学の根本概念であり主題であり続けている。紙という日常的かつ即物的な対象を敢えて「存在」という視点から捉えると何が見えてくるのだろうか。直立二足歩行という動物として優位な特性をもつ人類は道具を生み出し,紙を発明し,機能別に分化させ現代に至っているが,この過程を「存在と生成」という思考の枠組みから捉えてみた。</p><p>現代哲学は多様だが,戦後フランスの実存主義,構造主義,ポスト構造主義という変遷の文脈の中で紙という存在を解釈してみたが,サルトルのアンガジュマン(engagement)は実存である人間が対象である紙に働きかけることにより紙を進化させ,また存在理由をraison d'être(レゾンデートル)と表現している。ポスト構造主義のレジス・ドブレによるメディオロジーでは思考の対象に紙を取り上げ,「紙の力」(Pouvoirs du Papier)として,記号としての文字を支える紙の支持体としての役割を強調し,伝達における歴史性・文化性の維持の重要性を強調し,暗にデジタルを批判しているとも解釈できる。</p><p>デジタルが優勢な世界でも記憶を基盤とする知的形成,初等教育,文化の形成には親和性と感情価の高い紙というメディアは今後も不可欠である。紙と印刷の世界へのコンピュータの登場は近代への決別というポストモダン的な捉え方があるが,21世紀になり現代哲学の地殻変動の中から新たな思考の枠組みで「モノの知」を探ろうという動きがあり,新たな紙の捉え方が生まれる可能性がある。</p>

著者

金 鳳庸 磯貝 明 尾鍋 史彦 臼田 誠人

出版者

JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.42, no.12, pp.1165-1170, 1988-12-01 (Released:2009-11-16)

参考文献数

14

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No additive paper and four kinds of paper containing rosin-alum, alum only, alkylketenedimer (AKD) -cation polymer and cation polymer only were treated by UV light in air to study changes of paper properties, from the viewpoints of natural deterioration of paper.Photodegradation of cellulose and hemicellulose chains in paper brings about the slight increase in tensile strength and Young's modulus, and the drastic decrease in folding endurance for every paper examined so far. These findings may be explained by molecular rearrangements of degraded cellulose and hemicellulose to form new stable hydrogen bonds during irradiation. Sizing and retention chemicals have little influence on such paper properties even though some of them are chemically modified by UV irradiation.Since rosin-size has UV absorption at the relatively long wavelength region, UV treatments bring about the gradual loss of sizing effects and influence wet tensile strength and water absorption properties.Optical properties are primarily influenced by additives. Rosin-sized paper showed the darkest color after UV treatment because of its UV instability. AKD seems to suppress the coloring reactions to give lower discolored paper compared with paper without additive.

著者

尾鍋 史彦

出版者

JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.45, no.4, pp.462-474, 1991-04-01 (Released:2009-11-19)

参考文献数

31

被引用文献数

5 5

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The dioxin issue in Japanese paper industry has emerged October 1990 and the governmental organizations (i. e., Environment Agency and MITI) have taken immediate actions to investigate the current status of organochlorine compounds in paper mill effluents. The Japan Paper Association has created the Special Committee for measures against Dioxin Issue and announced on December 1990 the guideline for reducing AOX (Adsorbable organohalogen compounds) to 1.5 kg/ ton by the end of the year 1993.The current dioxin issue is analyzed from a wider perspective of global environmental problems with particular emphasis on the government's action and the technological countermeasures by the Association.The present status of dioxin research from chemical, toxicological and pharmacokinetical aspects are summarized. The recent advances of kraft pulping and oxygen bleaching technologies as countermeasures for reducing AOX in paper mill effluents are described.The potential impacts of the current dioxin issue on recycled paper manufacture, environmental protection movements and consumer's movements are also described.

著者

尾鍋 史彦

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.66, no.5, pp.P_149, 2010-05-10 (Released:2010-06-10)

被引用文献数

2

著者

尾鍋 史彦

出版者

一般社団法人 日本画像学会

雑誌

日本画像学会誌 (ISSN:13444425)

巻号頁・発行日

vol.49, no.4, pp.265-270, 2010-08-10 (Released:2010-08-13)

参考文献数

18

被引用文献数

1

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紙のメディアとしての優位性の本質は人間との親和性にある.発達心理学からみると紙の感覚・知覚への訴求力や紙に載せた文字の繋がりからなる意味の認知構造への深く安定的な格納能力は生得的なものであり,個人の知の形成においてはデジタル時代においても紙メディアは優位性を持ち続ける.メディアの人間との親和性を感情価として評価すると,紙メディアの感情価は高く認知過程を促進するが,現段階での電子的表示メディアの感情価は不十分であるために,認知過程を阻害することが考えられる.またアフォーダンス理論によると,メディアの人間との相互作用に関わる身体感覚や文化的環境も認知過程に影響するので,紙の書籍と電子書籍は単なる視覚による読みの差異以外の書籍としての形態や視覚以外の諸感覚も認知過程に関係するが,さらなる解明には認知科学が強力な手段となるだろう.

著者

尾鍋 史彦

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.56, no.6, pp.P_166-P_169, 2000 (Released:2001-10-31)

参考文献数

3

著者

尾鍋 史彦

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.60, no.6, pp.P_202-P_205, 2004 (Released:2006-02-15)