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CORRUGATED CARDBOARD
V.Ryan © 2016
 
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The corrugated card box shown below, is manufactured from recycled card. Corrugated card is also called corrugated fibreboard or combined board. It is manufactured in a range of thicknesses. Corrugated board is manufactured from a type of heavy paper called ‘containerboard’. The flat outer surface is called the liner board and the triangulated structure between the liner boards is called the medium (sometimes referred to as the flutes). Corrugated cardboard can be recycled.
 
The strength and durability of the corrugated card is determined by the number of layers the final manufactured board has (see below). The triangulated section of each layer adds strength to the board.
 
 
 
 
 
 
The box opposite is a flat packed charity collection box. It is left ‘flat’ outside a household and the owners form it into a carrying box (with handle). The box is filled with unwanted clothes and left on the doorstep, for the charity to collect later.  
 
Corrugated cardboard charity box shown in the open position.
 
 
 
 
The flat version of the box is manufactured in a factory with the use of a steel die. The die has several blades set at different heights. Some blades will cut through the card whilst others ‘crease’ the card, allowing it to be folded easily and accurately.
 
Flat version of card collection box. The outline of the box and the handle slots are cut through by the steel die and the waste is removed for recycling. The fold lines are creased by other steel blades, ready for folding
 
 
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