Xylem
- part of a tree between the bark and the pith which forms
the mechanical structure that constitutes the wood from
which the fibre is obtained for use in pulp and papermaking.
Yield
- ratio of total amount of raw material entering a pulp
and papermaking operation to the equivalent product output.
Z-Directional Strength
- the strength of paper and board as related to the force
and measured by means of tension applied to the surfaces
of the test sample.
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