Evaluation on difference between fabric warpwise and weftwise draping properties by imaging technology

This topic designed a new test system based on computer image processing technology for evaluating the different draping properties of fabric along warpwise and weftwise directions.The fabric was placed on a platform and the warpwise and weftwise draping images of the fabric on the face side were taken with a digital camera.All images were processed with AutoCAD software,and three indexs,i.e.,fabric drape coefficient,the maximum length ratio and area ratio of the fabric along warpwise and weftwise directions under draping state were obtained.30 fabric samples were tested and a comprehensive evaluation method for fabric anistropic draping properties was proposed.Under the same conditions,these samples were also tested with YG811 fabric drapability tester,and the results demonstrated that among them,the errors of 24 samples is less than 5%.This indicates that the testing results of this new system and evaluation method are credible.