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1
Creasing
About the Crease
A crease stops the paper and printed image of a document from cracking when it is folded.
The crease is made when a sheet of paper is compressed between the two parts of a
mechanism known as a blade set. The blade set uses an ANVIL and a BLADE to form the
crease. A powerful motor operates the blade set so that it can put a large amount of pressure
on the paper. This pressure compresses the substrate and printed image, which makes the
paper thin and weak along the edges of the crease. This allows the paper to fold accurately
along the crease.
NOTE:
When you crease and fold, the crease is the most important process. The paper will not fold
accurately if the crease is not made correctly, or if it is not made in the correct position.