A New Testing Method of Yarn Components Based on Polarized Optical Microscope Analysis

摘要

In this paper, a new method of yarn component test was proposed based on the polarized optical microscope (POM) analysis. During the testing process, scattered fiber samples first got paralleled in the high voltage electrostatic field and then were observed under the POM to obtain clear fiber images, which were transmitted to the computer and processed to get fiber parameters including colors and diameters. At last, the types of the fibers were identified and the blend ratio of the yarns was calculated automatically. The experimental results have proved that this method can work with rather high efficiency and precision, especially for yarns with cellulous and chemical fibers which might be impossible for traditional methods. And furthermore, this new test method involves completely physical process, thus is truly environmental friendly.