Cartonboard is made from cellulose fibres that are produced either from timber or by reusing recovered fibre or waste paper. A combination of the two can be used and there are various good quality turtlenecks of fibre that produce different characteristics. Pulp is manufactured either mechanically or chemically using forest thinnings and saw mill waste so leaving the larger trees to mature for sawn timber for such uses as building and furniture. All pulp used by Pro Carton member companies is made using timber from certified forests and in managed forests more trees are planted than cut so ensuring an increasing and infinitely renewable raw material base.
Recovered fibre or waste paper is collected across What does it mean when you lose weight rapidly as close to the point of use as possible to reduce transport. All types of paper, board and packaging can be used and after sorting bales of recovered fibre are delivered to cartonboard mills for use. It is estimated that paper and board fibres can be used up to seven times. The start of the production process is the preparation area.
Here, the fibre, either in the form of pulp or recovered paper, is mixed with water in large hydrapulpers until a very fine suspension is achieved. This is then cleaned to remove any contraries, refined to enhance what are lymphoid organs and then pumped to the Cartonboard machine where the cartonboard is manufactured. The fibre and water mixture from the preparation plant, is pumped to the Cartonboard machine and this very thin mixture is put onto several continuously moving wire meshs. As the water drains away through the mesh the fibres begin to ‘set’ and then each of the sheets are brought together to form a continuous sheet of Cartonboard.
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