Skip to main content
Journal of Wood Science

Official Journal of the Japan Wood Research Society

Download PDF
  • Original Artice
  • Published:

Solid-state13C-NMR analysis of size components in handsheets prepared by fatty acid soap size-alum systems

Journal of Wood Science volume 48, pages 197–203 (2002)Cite this article

Abstract

The mechanism of paper sizing in fatty acid soap size-alum systems was studied by structural analyses of the size components in handsheets prepared with13C-labeled fatty acid soap size. Patterns of sizing performance and aluminum content of the handsheets were similar to those for the rosin soap size-alum sizing systems, although the patterns of calcium content were different. Solid-state13C-nuclear magnetic resonance analysis of the handsheets revealed that fatty acid calcium salt was the predominant size component in the handsheets prepared using tap water. This calcium salt is formed from the fatty acid soap size (fatty acid potassium salt) by ion exchange with calcium ion in pulp suspensions and retained on pulp fibers through aluminum compounds originating from alum added. On the other hand, when deionized water was used, free fatty acid was the major component in the handsheets. Fatty acid aluminum salt was present as a minor component in the handsheets prepared in both tap water and deionized water systems. Therefore, all size components (i.e., fatty acid calcium salt, free fatty acid, fatty acid aluminum salt) seem to contribute to the appearance of sizing features.

References

  1. Ito K, Isogai A, Onabe F (1999) Rosin-ester sizing for alkaline papermaking. J Pulp Paper Sci 25:222–226

    CAS  Google Scholar 

  2. Cobb RMK, Low DV (1955) The coordinate role of alum in sizing of paper. TAPPI J 38:49–65

    CAS  Google Scholar 

  3. Davison RW (1964) The chemical nature of rosin sizing. TAPPI J 47:609–616

    CAS  Google Scholar 

  4. Vandenberg EJ, Spurlin HM (1967) Mechanism of the rosin sizing of paper. TAPPI J 50:209–224

    CAS  Google Scholar 

  5. Strazdins E (1977) Mechanistic aspects of rosin sizing. TAPPI J 60:102–105

    CAS  Google Scholar 

  6. Kamutzki W, Krause T (1984) New insights of reactions during rosin sizing. Das Papier 38:V47-V55

    Google Scholar 

  7. Kitaoka T, Isogai A, Onabe F (1997) Sizing mechanism of emulsion rosin size-alum systems. Part 2. Structures of rosin size components in sheet. Nordic Pulp Paper Res J 12:26–31

    Article  CAS  Google Scholar 

  8. Kitaoka T, Isogai A, Onabe F (1997) Sizing mechanism of emulsion rosin size-alum systems. Part 3. Solid-state13C-NMR analysis of handsheets prepared by13C-labeled fatty acid-alum systems. Nordic Pulp Paper Res J 12:182–188

    Article  CAS  Google Scholar 

  9. Harrison GA (1924) A note on the solubilities of calcium soaps. Biochem J 18:1222–1223

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  10. TAPPI Test Methods (1997) T205 om-88

  11. JIS Method (1979) P 8122

  12. Kato M, Isogai A, Onabe F (1998) Retention behavior of aluminum compounds on pulp fibers at wet-end. J Wood Sci 44:361–368

    Article  CAS  Google Scholar 

  13. Ohno K, Isogai A, Onabe F (1999) Retention behavior of size and aluminum components in handsheets prepared in rosin soap sizealum systems. J Wood Sci 45:238–244

    Article  CAS  Google Scholar 

  14. Ohno K, Isogai A, Onabe F (1999) Mechanism of size retention on handsheets prepared in rosin soap size-alum systems. J Wood Sci 45:481–486

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Research Institute of Printing Bureau, Ministry of Finance, 256-0816, Kanagawa, Japan

    Kazuo Ohno

  2. Graduate School of Agricultural and Life Science, The University of Tokyo, 113-8657, Tokyo, Japan

    Akira Isogai & Fumihiko Onabe

Authors
  1. Kazuo Ohno
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Akira Isogai
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Fumihiko Onabe
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Akira Isogai.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ohno, K., Isogai, A. & Onabe, F. Solid-state13C-NMR analysis of size components in handsheets prepared by fatty acid soap size-alum systems. J Wood Sci 48, 197–203 (2002). https://doi.org/10.1007/BF00771367

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00771367

Key words