Definitions for "Delignification"
Keywords:  lignin, ecf, peroxide, pulp, fibres
In chemical pulping, the removal of lignin, the material that binds wood fibres together
The removal of lignin from wood.
Removal of lignin from wood fibres. ECF pulp mills use chlorine compounds for this process, although it can be achieved with oxygen, hydrogen peroxide or ozone (which do not create organochlorines) or with extended cooking of wood chips and/or better washing of the pulp before bleaching.
The breakdown of the timber substrate as a result of prolonged exposure to sunlight and rain, resulting in a loose and fibrous surface.