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Technique for Measuring Low Levels of Surface Tack of Rubber Rollers

IP.com Disclosure Number: IPCOM000102603D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 31K

Publishing Venue

IBM

Related People

Aulick, LO: AUTHOR [+6]

Abstract

A technique is disclosed which allows the quantification of very low levels of surface tack on rubber rollers. A roller is allowed to freely roll back and forth in a U-shaped track. As the roller rolls back and forth, it slows down and gradually comes to a stop. The time it takes for the roller to stop is called the decay time. The lower the decay time, the higher the tack.

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Technique for Measuring Low Levels of Surface Tack of Rubber Rollers

       A technique is disclosed which allows the quantification
of very low levels of surface tack on rubber rollers.  A roller is
allowed to freely roll back and forth in a U-shaped track.  As the
roller rolls back and forth, it slows down and gradually comes to a
stop.  The time it takes for the roller to stop is called the decay
time.  The lower the decay time, the higher the tack.

      The technique uses the principle that the rolling friction of a
roller is related to its surface tack.  As the roller rolls across
the surface of the U-shaped track, the rolling friction effectively
dissipates the kinetic energy of the rolling roller.  The roller
always starts with constant energy since it is always released from
the same height.  Thus, the time it takes for the roller to come to a
complete stop (decay time) relates to surface tack. Measuring the
decay time is an effective way of quantifying surface tack.

      Silicone rubber rollers with dimensions of 22 centimeters long
and 2.0 centimeters in diameter were tested in a U-shaped track made
of aluminum.  The U-track was semicircular with a radius of 20.3
centimeters.  This system gave repeatable measurements of the surface
tack of silicone rubber rollers of varied composition.