engleski

Influence of duration of ammonia treatment on wood colour stability to UV light

One of the methods of modifying wood colour and highlighting the wood texture is modification of wood with ammonia gas. The objective of this work was to establish the influence of duration of ammonia treatment and influence of pre- treatment of wood with tannin in combination with ammonia treatment on wood colour stability during artificial indoor exposure to UV light. Results of colour change showed that treatment with ammonia with and without tannin pre- treatment increased colour stability of tested wood samples, especially of spruce and larch wood samples.

Ammonia treatment; Colour stability; QUV; Tannin

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