Esra KARACA, Sunay OMEROGLU, Behcet BECERIR

LİF ENİNE KESİT ŞEKLİNİN POLİESTER DOKUMA KUMAŞLARIN ÇEKME VE YIRTILMA ÖZELLİKLERİ ÜZERİNE ETKİLERİ

İçi dolu ve içi boş dairesel ve trilobal enine kesite sahip poliester liflerden dokunmuş iki tip (bezayağı ve dimi) kumaşın kopma kuvveti, kopma uzaması ve yırtılma kuvveti özellikleri araştırılmıştır. İçi dolu liflerden üretilmiş kumaşlar içi boş liflerden üretilmiş kumaşlara göre daha yüksek kopma uzaması ve yırtılma kuvveti değerleri gösterirken, genellikle daha düşük kopma kuvveti değerleri göstermişlerdir. En yüksek kopma kuvveti değeri içi boş dairesel filamentlerden dokunmuş dimi kumaşta elde edilirken, en yüksek yırtılma kuvveti değeri içi dolu dairesel kesite sahip filamentlerden dokunmuş dimi kumaşta elde edilmiştir. Dairesel kesitli filamentlerden dokunmuş olan kumaşlar en yüksek kopma uzamasına sahiptir. Lif kesitinin kopma mukavemeti ile yırtılma mukavemeti üzerindeki etkisi birbirinden farklılık göstermektedir

Anahtar Kelimeler:

Lif kesit şekli, Poliester, Dokuma kumaş, Çekme ve yırtılma özellikleri

EFFECTS OF FIBER CROSS-SECTIONAL SHAPES ON TENSILE AND TEARING PROPERTIES OF POLYESTER WOVEN FABRICS

Breaking load and elongation, and tearing load properties of two type fabrics (plain and twill) woven from polyester fibers having round, hollow round, trilobal and hollow trilobal cross-sectional shapes were investigated. The fabrics produced from full fibers had higher breaking elongation and tearing load values but generally lower breaking load values than the fabrics produced from hollow fibers. The highest breaking load value was obtained in twill fabric woven from filaments having hollow round cross-sectional shape, while the highest tearing load value was obtained in twill fabric woven from filaments having round cross-sectional shape. The fabrics constituting filaments with round cross-sectional shapes had the highest breaking elongation values It was concluded that the effect of fiber cross-sectional shape on breaking strength and on tearing strength differed from each other

Keywords:

Fiber cross-sectional shape, Polyester, Woven fabric, Tensile and tearing properties,

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