Dharkayaga polyester-ka ee u adkaysta laalaabyada ayaa si gaar ah loogu sameeyay dharka dugsiga. Ku habboon dharka boodboodka, waxay bixisaa muuqaal caqli badan iyo cimri dherer aad u fiican. Astaamaha daryeelka fudud waxay u oggolaanayaan dayactir degdeg ah, taasoo hubinaysa in ardaydu ay had iyo jeer u muuqdaan kuwo soo jiidasho leh.