Data description

Data description

Material input and output

Material inputs

Raw Material

The wood input has been reported as bone dry solid wood under bark. The species are specified. From the wood that is used, 59% is chain of custody certified under a forest management system (FSC and/or PEFC).

A pulp yield (oven dry pulp/oven dry wood) of 54-56% is normal for Kraftliner.

A high pulp yield of 80-85% is normal for Semichemical Fluting.

The input of recovered paper has been reported as total weight including moisture and other materials (sand, metal objects, plastics, wood etc.). In European countries the water content of recovered paper is generally assumed to be about 10%. The total input of recovered paper is given.

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Chemical inputs

Data were collected for chemicals. Those chemicals whose input was in total below 5 kg/tonne net saleable product per mill are calculated as zero input in the calculation of averages of each of the five production processes reported in the Annexes. Chemicals are given as dry weight.

Some of the chemicals have been reported grouped together after their function in the mill.

The functional additives, mainly starch, influence the properties of the paper, process additives are used to guarantee that the process of paper production runs smoothly or to increase the production.

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Packaging

All packing materials have been reported. Packaging amounts to relatively small inputs of tape, wrappings of paper or plastic film, steel bands and pallets used as packaging of the saleable product. Pallets are used to a great extent in the logistic operations of the corrugated board industry. However the reported data on the use of pallets are confusing because of the complexity of the matter. Pallets can be returnable or one-way, only used internally in the plants and produced of wood, plastic or paper/wood combinations. Some plants have reported their use in number of pallets while others have reported in kilogram pallet per tonne net saleable product. Therefore a figure could not be reported.

Allocation to paper grades when a mill produces more than one paper grade

The basic data for raw material and chemical inputs are mainly based on recipes used for the production. When allocation was necessary, this was done according to mass production of the different papers.

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