トナーの単体分離性向上を目的としたケロシンによるオフィス古紙の離解  [in Japanese] Disintegration of Waste Office Paper by Kerosene for Improving Toner-Ink Liberation  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 大木 達也 OKI Tatsuya
    • 産業技術総合研究所環境調和技術研究部門粒子分離グループ National Institute of Advanced Industrial Science and Technology (AIST)
    • 四元 弘毅 [他] YOTSUMOTO Hiroki
    • 産業技術総合研究所環境調和技術研究部門粒子分離グループ National Institute of Advanced Industrial Science and Technology (AIST)
    • 田沼 洋和 TANUMA Hirokazu
    • 早稲田大学理工学研究科環境資源及材料理工学専攻修士課程 Graduate Student, Graduate School of Waseda University
    • 竹内 雄 TAKEUCHI Yuu
    • 早稲田大学理工学研究科環境資源及材料理工学専攻修士課程 Graduate Student, Graduate School of Waseda University

Abstract

In waste office paper photocopied and printed by laser printers, toner ink is used as the printing medium and it cannot be decomposed in alkali by saponification different from the case of conventional oil ink. Therefore, to achieve a high degree of liberation, waste office paper has conventionally been comminuted to fine particles by strong agitation. However, this method not only makes toner so fine that separation becomes even more difficult but also makes it difficult to make high quality regenerated paper because the paper fibers are cut. In this study, a toner disintegration method by a relatively soft agitation force with the use of kerosene as a softening agent for toner ink has been investigated. The liberation degree of toner was 3.8 % by the conventional method using only NaOH and increased to 98.1 % by using undiluted kerosene and to 80.1 % by using 1 % kerosene suspension. As the remained toner parts were connected to only one or few paper fibers in these kerosene treatments, the liberation degree would become 100 % if these kinds of toner were also counted. The use of surfactants as dispersion agents for kerosene decreases the liberation degree because it interferes the softening of toner. It was also confirmed that an NaOH treatment in advance of the kerosene treatment is important to increase the liberation degree of toner.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 118(3), 179-184, 2002-04-25

    The Mining and Materials Processing Institute of Japan

References:  23

  • <no title>

    通商産業省

    紙パルプ統計年報, 1998

    Cited by (2)

  • <no title>

    クリーンジャパンセンター

    古紙再生に係る脱インキ問題についての調査研究報告書, 1990

    Cited by (1)

  • <no title>

    古紙再生促進センター

    古紙再生処理にかかわる基礎的技術に関する調査報告書(第1分冊), 1989

    Cited by (1)

  • <no title>

    古紙再生促進センター

    製紙原料としての未利用古紙活用技術に関する調査報告書, 1991

    Cited by (1)

  • <no title>

    石橋康雄

    紙パルプ技術タイムス, 13-19, 1990

    Cited by (1)

  • <no title>

    砂金光記

    第40回電子写真学会講習会資料, 1-12, 1995

    Cited by (1)

  • <no title>

    砂金光記

    工学情報 546, 2-5, 1994

    Cited by (1)

  • <no title>

    岡山隆之

    繊維学会予稿集, G-104, 1998

    Cited by (1)

  • <no title>

    OKI T.

    Progress in paper recycling 10(3), 25-35, 2001

    Cited by (4)

  • <no title>

    プラスチック加工技術便覧, 829-845, 1969

    Cited by (1)

  • <no title>

    接着ハンドブック, 88-115, 1980

    Cited by (1)

  • <no title>

    大木達也

    素材学会春季大会講演要旨集, 164-165, 2000

    Cited by (1)

  • <no title>

    古紙再生促進センター

    古紙再生処理にかかわる基礎的技術に関する調査報告書(第3分冊), 1990

    Cited by (1)

  • <no title>

    ENDOH S.

    Paper Pulp tech. 39(1), 1-11, 1988

    Cited by (5)

  • Development of Deinking Agents for Flotation Systems : Part 3  [in Japanese]

    MASAMIZU Kohji , EGAWA Junta , HAGIWARA Masaaki , UKIGAI Toshiyuki

    紙パ技協誌 50(10), 1384-1390, 1996-10-01

    References (6) Cited by (3)

  • <no title>

    KEMPER M.

    International Journal of Mineral Processing 56, 317-333, 1999

    Cited by (2)

  • <no title>

    NORMAN J. C.

    Tappi J. 77(3), 151-158, 1994

    Cited by (3)

  • <no title>

    SCOTT W. E.

    Tappi J. 78(12), 125-130, 1995

    Cited by (3)

  • <no title>

    GUBITZ G. M.

    Journal of Biotechnology 65, 209-215, 1998

    Cited by (2)

  • Toner Determination by Transmitting Spectrometer for the Study of Office Paper Recycling  [in Japanese]

    OKI Tatsuya , OWADA Shuji , YOTSUMOTO Hiroki , TANUMA Hirokazu

    Resources processing 48(1), 27-36, 2001-04-05

    References (16) Cited by (2)

  • <no title>

    HSU N. N.

    Tappi Proc. 1996 Recycling Simp., 249-255, 1996

    Cited by (2)

  • <no title>

    SEIFERT P.

    Tappi Proc. 1998 Pulp Paper Conf., 205-218, 1998

    Cited by (2)

  • <no title>

    ANGLIM B. P.

    Pulp & Paper Canada 100(1), 56-58, 1999

    Cited by (1)

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008226288
  • NII NACSIS-CAT ID (NCID)
    AN10062646
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09161740
  • NDL Article ID
    6151602
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-315
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
Page Top