Evaluating Pile Yarn Characteristics in Hand Woven Carpet Using Stress-Strain Behavior in Compression

Many factors such as production meth ods and structura l param eters have distinctiveinfl uence on the quality and performa nce of a hand woven ca rpe t. to inves tiga te the effects of somevariab les, eigh teen samp les of ca rpet vary, in knot den sity, pile heigh t and percen tage of slipe wool,were manufactured, pile yarn pe rforma nce wa s assessed by using load-displac ement compressio ncurve. ob ta ined from zw ick ten sile tes te r under cyc lic loading, up to 30 kpa . based on the results.compre ss ion and matting of the pil e yarn de creas ed and its elas tic reco very increas ed with theincrease in kno t den sity . increase in pi le height ca used an increase in the deg ree of va ria tion fo r ca rpetsamples. mailing of samples decre ased with increase in pile he ight to ce rta in level , but furt herinc rease ca used inc reased reduct ion in matting. elastic recove ry of pile ya rn had a reverse trend as thepile height changed. consequently. increase in pe rcen tage of slipe woo l ca used an inc rea se incompressio n and ma tt ing, and also reducti on in e lastic rec overy of pile ya rn.