The operating regime in mechanical pulps--the significance of fiber failure

Lauri K. Lehtonen; Alan W. Rudie; Douglas W. Coffin; Derek H. Page

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The operating regime in mechanical pulps--the significance of fiber failure

Informally Refereed

Authors:

Lauri K. Lehtonen, Alan W. Rudie, Douglas W. Coffin, Derek H. Page

Year:

2004

Type:

Miscellaneous Publication

Station:

Forest Products Laboratory

Source:

Proceedings of the 2004 Progress in Paper Physics Seminar, 2004 June 21-24, Trondheim, Norway. Trondheim, Norway : NTNU and PFI, 2004: pages 38-40.

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Abstract

In order to circumvent the problem of altering the sheet composition to increase bonding, in this study the bonding was increased by wet pressing and press drying sheets to various levels of RBA. The operating regime problem was then studied by interpreting the tear relative to bonding (where bonding is measured as T/Z, Tensile index/Zero span tensile index) relationship in whole TMP, its fractions and mixtures of these fractions. In addition the effect of fiber length on the tear strength at various bonding levels was studied using the data obtained from the mixture studies.

Keywords

Paper, mechanical pulping process, mechanical properties, bond strength, failure, bonding, fiber length, fiber properties, tensile strength, pulp and paper processes, wood fibers

Citation

Lehtonen, Lauri K.; Rudie, Alan W.; Coffin, Douglas W.; Page, Derek H. 2004. The operating regime in mechanical pulps--the significance of fiber failure. Proceedings of the 2004 Progress in Paper Physics Seminar, 2004 June 21-24, Trondheim, Norway. Trondheim, Norway : NTNU and PFI, 2004: pages 38-40.