This means that the wood supplied to the paper mill has to be debarked before it can be used to produce one of the varieties of pulp – the base material for the production of paper. The debarked trunks are either pulped to fibres (mechanical wood pulp) or processed to chips for chemical pulp.
The wood finds it way directly to the paper mill in the form of trunks or in the form of timber mill waste (slabs, chips).