Z-directional strength Z-directional strength refers to the ability of a paper or board to resist tensile loading in a direction perpendicular to the plane of the paper (Z-direction). After exceeding the Z- directional strength of the paper, a break in the paper structure occurs in the sheet but not at its surface. The Z-directional strength
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Z-directional strength
After reading this article you will..
- know that there are two different methods to measure Z-directional internal bonding of paper and pulp.
Material testing and product properties
- Why test pulp and paper?
- Fibre properties
- Papermaking properties of pulp
- Fluff pulps
- Chemical analysis of pulps
- General physical properties of paper and board
- Optical properties of paper
- End-use properties of printing papers
- End-use properties of packaging papers and boards
- Tissue papers
- Permanent papers
- Reliability of results in physical testing of pulp and paper
- Quality control at the mill
- Standardisation in pulp and paper testing
Authors & references
Edited by:
Petteri Maijanen, ABB
Original author:
Jan-Erik Levlin
Based on: Levlin, J-E. General physical properties of paper and board (Chapter 7). In: Levlin, J-E. & Sjöderhelm, L. (ed), Pulp and paper testing (Book 17), Papermaking Science and Technology. Jyväskylä. 1999. Fapet Oy. pp. 136–161.
References:
- Andersson, M., Svensk Papperstid. 84(3):R6(1981) and 84(6):R34(1981).
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This page has been updated 31.03.2021
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