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AS-Level ­ Graphics ­ Cardboard
"Corrugated cardboard is a stiff, strong, and light-weight material made up of three layers of brown
kraft paper."

History:
Most boxes that you use such as display boxes and also what's used to deliver your products.
Because corrugated cardboard is such a versatile packaging material,…

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The Manufacturing Process


1. Pulping the pine chips
First, tree trucnks are stripped of bark and torn into small chips. Next, These chips are placed in a
large high-pressure tank called a batch digester, this is where they are cooked in a solution made of
sodium hydroxide and several other…

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Using powerful fork-lifts, skilled equipment operators select, move, and load rolls of kraft paper at
one end of the corrugator. Corrugated cardboard manufacture includes two key steps: making kraft
paper and corrugating the
cardboard. Kraft paper
involves pulping wood chips
and then feeding the resulting
paper substance through
massive steam…

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10. The corrugating rolls are covered with I O flutes --horizontal, parallel ridges like the teeth of
massively wide gears. When the hot paper passes between the corrugating rolls, the flutes trap and
bend it, forming the middle part of a sheet of corrugated cardboard. Each corrugating machine has
interchangeable…

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