Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference (한국펄프종이공학회:학술대회논문집)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
권호 표지

CHARACTERIZATION OF ROSIN ON THE SURFACE OF PAPER BY MEANS OF CHEMICAL MODIFICATION-ESCA TECHNIQUE

  • A. Sawatri (Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan) ;
  • M. Sawaguchi (Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan) ;
  • Y. Ozaki (Research Institute, Printing Bureau, Ministry of Finance, Japan)
  • Published : 1999.04.01

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Abstract

The handsheets were prepared from softwood bleached sulfate pulp added with a soap-type rosin sizing agent. The rosin sizing agents on the surface of the handsheets were chemically modified with OsO4 vapor. The rosin existing in the surfaced layer of the depth of 10nm and 1nm were characterized by using ESCA and TOF-SIMS, respectively. The results show that the rosin sizing agents in the very thin surface layer were well characterized by Os4f peak intensities in ESCA. Os4f peak intensities increased with the increase in the added amount of rosin. However, the secondary negative ion intensity were not properly characterized in TOF-SIMS, because the secondary OsOx ions intensity had a minimum with the increase in the added amount of rosin. The positive ion intensity originated from the other site than Os atom showed a proper characterization.

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