The food industry produces both finished products for consumption and intermediate products for further processing. It is diverse compared to many other industrial sectors. This diversity can be seen in terms of size and nature of the companies as well as the wide range of raw materials, products and processes. The food industry is subject to very diverse local economic, social and environmental conditions, and varying national legislations.
The interest of the paper industry market is first of all linked to the complex process required by the production of paper. Two distinct manufacturing operations can be set-up according to the quality of paper needed: mechanical process (mechanical pastes for newsprints and magazines) or chemical process (chemical pastes for writing, impression or packing: sulphite pastes and sulphate pastes or kraft) during which the wood fibres are insulated with chemicals such as bisulfites or sulphates.