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What is a delta fold?
Answered by Suzanne Morgan, founder, Print Buyers

What is a delta fold?

S. H.

A delta fold is a popular fold in advertising. Here’s a description from the Handbook of Print Media, written by Dr. Helmut Kipphan: "A square product or "delta fold" is produced if the small auxiliary jaw cylinder section of a folder is positioned within the first third of the product lying on the folding cylinder."

While that tells you how it’s produced, it makes more sense to see what it looks like. To view a diagram of a delta fold, go to the web page below and scroll half-way down the page:

Jim Brisendine, Technical Sales Manager of PBM Graphics, Inc. assisted with this question. Thanks, Jim! For more information on PBM Graphics, contact Tom Arnold at 1-800-849-8100 or visit their Web site at

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