OZONATION: A NEW PATTERNING METHOD FOR OPTICAL BLEACHED FABRICS

Bu çalışmada, pamuklu kumaş üzerinden optik beyazlatıcıların uzaklaştırılmasında ozonun kullanılabilirliği incelenmiştir. Bu amaçla, üç farklı konsantrasyonda (%0.1-0.3-0.5) stilben esaslı direkt tip optik beyazlatıcı pamuklu kumaşa aktarılmış ve sonrasında optik beyazlatılmış numuneler 15, 30 ve 60 dakika süresince ozonlanmıştır. Elde edilen sonuçlar ozonlamanın optik beyazlatılmış numunelerin rengini gidermede başarılı bir şekilde kullanılabileceğini göstermektedir. İşlemin verimliliği ozonlama süresindeki artış ile birlikte artmaktadır, ancak kumaşların patlama mukavemet kayıplarındaki artıştan dolayı ideal işlem süresinin seçilmesine dikkat edilmelidir. Aynı zamanda bu çalışma ile optik beyazlatılmış pamuklu kumaşlar için yeni bir desenlendirme yöntemi geliştirilmiştir. Elde edilen sonuçlara bakılarak bu yeni yöntemin, optik beyazlatmada kullanılamayan batik boyama ile benzer sonuçları sağladığı söylenebilir

OZONLAMA: OPTİK BEYAZLATILMIŞ KUMAŞLAR İÇİN YENİ BİR DESENLENDİRME YÖNTEMİ

In this paper, the usability of ozone to remove the optical brightener from cotton fabric is undertaken. For this aim, the direct type optical brightener based on stilbene, with three different concentration (0.1-0.3-0.5%), was applied to the cotton fabric and then optical bleached samples were ozonated for 15, 30, and 60 minutes. The achieved results clearly indicate that ozonation can be used efficiently to decolorize the optical bleached samples. The efficiency of the process increased with the rise in ozonation time, but it should be paid attention to choose the ideal process time because of the increase in bursting strength loss of fabric. Also, a new patterning method has been developed for optical bleached cotton fabric with this study. It can be said that this new process provides similar results with tiedyeing, which is not appropriate for optical bleaching, in the light of achieved results

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