Blog >> How to manufacture corrugated fiber board?
Corrugated fiber board consists of a flat layer of paper sheet (liner) glued on one or both sizes of a corrugated paper (medium). The corrugated board is made by passing two layers of paper (usually kraft) through corrugating machine. One layer of paper becomes corrugated after being passed through the heated rolls and other is brought in to contact with it after the former having glued at tips.
corrugated fiber board
The corrugating ‘medium’ is generally made from a 0.009″ thick (9 caliper) or 0.23 mm. The glue frequently used is starch or silicate of soda adhesive. When only one liner is used, the product is known as “single face” or “two ply” board. This board is flexible in one direction. When the corrugated medium is combined on both sides with flat sheets, it is known as double faced or “3 ply board”.
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