Buyazldapolyester liflerinin, elastik ozelliklerine ue boyanabilirliklerine etki eden fibriller yapdon anlatllarak fibriller yap1 modelleri belirtilmigtir. Ayrlca fibrilleryaplyr apkca gdzler oniine sermek icin tarama elektmn mikmskobundan elde edilen fatograflar uerilmistir. 

The fibrillar structure ofpolyester fibres which affects their elastic properties and dyeability are explained in this article and fibrillar structure models are giuen. Besides, photograps obtained from the scanning electmn micmscope are giuen so as to show clearly the fibrillar structure.