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What’s a “gap seam” on a spiral paper tube?

Not all spiral paper tubes are made the same, and sometimes their features, though obvious to us, are invisible to the untrained eye.

The three most common types of seams on a spiral paper tube are “overlap”, “butted” and “gap”.

In this example, the gap seam is featured. Look at where the paper meets itself, or comes close to meeting in this case. This is the seam.

Anytime you see a spiral paper tube with a small gap in the seam, that is known as a gap seam.

User comments on “What’s a “gap seam” on a spiral paper tube?”

  1. naresh joshi says:

    yea as the diameter of paper tube thickness in cress pitch angel of paper tube differ make space to avoid paper strip width in cress can avid this or width of paper tube has to be with gap width ,


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