Online Characterization of Fabric Compressional Behavior

Abstract

The response of a fabric to applied forces normal to its plane is known as fabric compres sional behavior. It is one of the important properties that determine fabric performance in many applications. A system used to measure fabric compressional characteristics, online is pro posed in this paper. A controllable nip formed by a pair of rollers is employed to apply compressional deformation to a moving fabric while the compression force and displacement are continuously recorded. The influence of various system parameters on the sensitivity of the system is analyzed. An incremental differential algorithm is used to calculate the pressure- displacement relationship from the measured force-displacement data from the online system. A number of woven and nonwoven fabrics are evaluated using the online measurement system as well as other commercially available fabric compression testers, and compressional char acteristics obtained from the online measurement system compare well with the same param eters measured by the other compressional testers.

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