Measuring Fiber Orientation in Nonwoven Fabrics by Laser Scattering Method Part I Principle and Instrumentation

摘要

The scattering performance of a parallel laser beam on the parallel fiber model and nonwoven fabrics are studied in detail. A device of computer - program - controlled system, for measuring laser scattering intensity - angle distribution function of fiber assemblies is set up, and the measuring condition for distringuishing the fibers ar- ranged at different directions is carried out. The materi- als of two categories, the models of fiber assembly and nonwoven fabrics made with varied processing methods, are studied.