A small veneer dictionary that tries to describe and illustrate some common definitions that are used in the veneer production.
birch has reddish-brown heartwood
Composed core veneer
the veneer is composed of random width veneer sheets that are kept together with glue threads on one side of the veneer
the direction, size, arrangement, and appearance of the fibres in veneer
Kiln-dried (KD) veneer
veneer is dried artificially in a kiln (veneer dryer in which the temperature and humidity of the circulating air can be controlled)
Knot, healthy /sound, clear
a light coloured healthy or sound knot is a knot in the veneer that is as hard as the surrounding veneer and is so solid and free from decay that it will retain its place in the piece
Knot, healthy/sound, dark
a dark coloured healthy or sound knot is a knot in the veneer that is as hard as the surrounding veneer and is so solid and free from decay that it will retain its place in the piece
a hole left as a result of a removal of a knot
Mineral streaks / “hair”
A discolouration of the wood caused by minerals taken up by the tree from the soil. Mineral streaks are typically darker than the surrounding wood.
Moisture content / humidity
a percentage of the mass of water over the mass of wood fibre in a piece of veneer. Tarmeko Spoon AS usually offers birch veneer with the humidity of 6 ±2 %
Peeling defects / Roughness
Pin knot / point knot
small dark knot (up to 6,5 mm)
An arrangement of fibres or other longitudinal elements at an angle to the longitudinal axis of the piece
A split is a lengthwise separation of fibres that runs from one surface to another surface.