Fiber Morphologies and Sheet Properties of Hardwood Thermomechanical Pulp

• Kamijo Yasuyuki

  Nippon Paper Industries Co., Ltd.

• Sugino Mitsuhiro

  Nippon Paper Industries Co., Ltd.

• Miyanishi Takanori

  JAPAN TAPPI

抄録

Thermomechanical pulps were produced in a laboratory from various softwood and hardwood species by applying different chemical pretreatments to study fiber morphology and sheet properties. High-density hardwood chips produced mechanical pulp fibers with thick walls, which were hard to be collapsed in the sheet forming and resulted in bulky sheets. The Runkel ratio was a good parameter to characterize the cross sectional dimension of fibers and to predict the sheet bulkiness. The fibrillated fines increased fiber bonding of sheets while the flake-type fines improved the light-scattering coefficient. Wood species and chemical pretreatment conditions primarily determined the type of fines, which was characterized by the sedimentation velocity test.

収録刊行物

• 紙パ技協誌

  紙パ技協誌 69 (10), 1125-1133, 2015

  紙パルプ技術協会

キーワード

• Thermomechanical pulp
• CTMP
• APTMP
• Runkel ratio

詳細情報

• CRID: 1390001206520567168
• NII論文ID: 130005115690
• DOI: 10.2524/jtappij.69.1125
• ISSN: 18811000
• ISSN: 0022815X
• Web Site: https://www.jstage.jst.go.jp/article/jtappij/69/10/69_69.1125/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可