Waffling - deformation of a
sheet caused by excessive ink tack.
Watermark
- a design put into the fabric of the paper during manufacture
by either a recessed or raised design on the dandy roll.
Water Leaf
- moisture-absorbent paper such as blotting or filter
paper.
Wet Strength
- papers to which this term applies retain an appreciable
percentage of their mechanical strength after soaking
in water, and are made by the addition of a resin to the
stock during paper manufacture. Resin cements the fibres
together and the bond tends to improve with age.
With the Grain
- Parallel to the grain direction of the fibres of the
paper or board, as opposed to against the grain.
White Lined Board
- a multi ply construction made predominantly from selected
waste paper.
Woodfree or Fine Paper
- papers and boards containing
no fibres other than those derived from chemical wood
pulping processes i.e. contains no lignin.
Woodpulp
- wood reduced to a pulp for subsequent papermaking processes;
can be either mechanical, chemical or combination;
TMP and CTMP.
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