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Characterization of Fabric Friction Performance by Ches-Fy System

Author: GaoRuiQiang
Tutor: DuZhaoQun
School: Donghua University
Course: Textile Material and Textiles Design
Keywords: CHES-FY system fabric style friction performance orthogonal design clusteranalysis
CLC: TS101.923
Type: Master's thesis
Year: 2014
Downloads: 9
Quote: 0
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Abstract


Surface friction property is one of basic mechanical performance of fabric, which affects hand feeling, such as smoothness, glutinousness and roughness. There are two kinds of famous methods to measure fabric style:KES system and FAST system. These two systemsare developed by single property through single test in principle, which is time-consuming and energy-consuming. The CHES-FY system in the paper is based on quasi three-point bending theory, which achieves weight, bending, friction and tensile properties in one test. It is better in describing fabric style synthetically.The CHES-FY system is developed based on the principle of one measure one system to acquire fabric pulling-out force-displacement curve through one pulling outtest, and can extract typical indexes in the curve, including left slope, left area, peak (X,Y), right slope, right area, mean level force, which are utilized to describe the fabric surface friction performance. Four main parameters of the CHES-FY system are selected as four factors with four levels to design sixteen groups orthogonal experiment. The best parameters group of the CHES-FY system is obtained by maximin analysis of orthogonal test. Correlation analyses are conducted between characteristic indexes featured from extraction test based on the best parameters group and fabric friction coefficient from KES system, and we obtain the following regression equationusing multivariate linear regression with SPSS: Friction coefficient=0.120-0.088×right slope-0.013×peak Y+0.001×right area+0.011×mean level force. The regression equation meets the hypothesis testing of linearity as well as homogeneity test of variances, which indicates that results are effective.The influence of diameter of fixed pins on related experimental results is analyzed, where diameters of fixed pins range from2mm,4mm,6mm to10mm, respectively; while other related parameters are unchanged. The average and C.V. of every index and correlation between every index and friction coefficient demonstrate that diameter of fixed pins of the best parameter group is4mm. Moreover, five different kinds of fabrics are wrapped on fixed pins, respectively. The C.V. values of three repeated measurements are all less than10%, which shows high repeatability of the CHES-FY system. Correlationcoefficients between related indexes from different wrapped pins and friction coefficient from KES system are all larger than0.8, which illustrates the fabric friction coefficient can be characterized by the complex group of right slope, peak Y, right area and mean level force. After that, fabric thickness, drape ability and wrinkle recovery performance of fabric samples were measured, and correlation analysis between related indexes and friction coefficient were compared. The results demonstrate that fabric thickness has significant influence on fabric surface friction performance, while there are less influence for both fabric drape ability and wrinkle recovery performance.Objective cluster analysis and subjective handle evaluation are conducted, where we achieved the scores of grade and rank of samples. Consistency check test according to statistical magnitudes W and F indicates that the handle inspection has good consistency. Using SPSS software’s fast sample k-means clustering method, objective cluster analysis based on these characteristic indexes from the best parameter group shows that there exist good consistency for fabric surface friction performance.

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CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > General issues > Basic science > Quality management and quality control > Test > Fabric performance test
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