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Re: compression in a roll

From ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups sci.physics
Subject Re: compression in a roll
Date 2026-10-14 15:41 +0000
Organization Stefan Ram
Message-ID <rolls-20261014164058@ram.dialup.fu-berlin.de> (permalink)
References <87h5ioe2n0.fsf@librehacker.com>

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Christopher Howard <christopher@librehacker.com> wrote or quoted:
>Hi, I was wondering: when you roll up tightly something like sheets of
>paper, toilet paper, or plastic, is there some kind of compression force
>that makes sheets toward the center of the roll thinner than sheets
>toward the outside of the roll?

  It seems there is more pressure near the center.

  The tension of the rolled-up layers is called "wound-in tension".

  There is a whole science of this called "web handling", "web
  winding", or "roll winding mechanics". Industrial winding machines
  do not use even tension throughout the process, to ensure the
  roll has a relatively uniform hardness and thickness throughout.

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Thread

compression in a roll Christopher Howard <christopher@librehacker.com> - 2026-10-14 07:13 -0800
  Re: compression in a roll ram@zedat.fu-berlin.de (Stefan Ram) - 2026-10-14 15:41 +0000
  Re: compression in a roll Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-10-14 22:17 +0200

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