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Watching a binder in Prague use a bone folder on damp paper completely changed my approach to rounding spines.

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2 Comments
elliot_allen65
Did they mention if the paper type made a difference? Everyone talks pressure, but I bet the fiber content of that paper was the real key. A soft handmade sheet would fold under pressure a machine-made one would fight. That choice changes the whole feel of the rounding step.
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aaron_flores84
What specific pressure did they use on the damp paper?
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