Esen ÖZDOĞAN, Aslı DEMİR, H. Aylin KARAHAN, Hakan AYHAN, Necdet SEVENTEKİN

ATMOSFERİK PLAZMANIN YÜN LİFLERİNİN BASILABİLİRLİĞİNE ETKİSİ

Bu çalışmada, yünlü kumaşların asit boyarmaddeleri ile basılabilirliğini sağlamak için çevre açısından güvenli bir işlem olan plazma ile ön işlem yapılmıştır. Örme yünlü kumaşlar, argon ve hava atmosferik plazma ile işlem görmüş ve basılabilirliği açısından değerlendirilmiştir. Baskı işlemi iki farklı reçete ile farklı buharlama koşullarında değerlendirilmiştir. İşlemsiz ve plazma işlemli yünlü kumaşlar, morfolojik değişimleri kıyaslamak için SEM ile analiz edilmiştir. Sonuçlar, atmosferik plazma işleminin lifin hidrofilitesini geliştirdiği, baskı patının daha az tüylü yüzeye adhezyonu ve penetrasyonunu kuvvetlendirdiğini göstermiştir. Baskı patının artan penetrasyonu ve azalan tüylülüğü, daha düşük buharlama sürelerinde dahi ıslatıcı olmaksızın daha yüksek renk verimine yol açmıştır. Hava ve argon plazma işlemli kumaşlar özellikle uzun süreli işlem koşullarında daha yüksek ışık haslığı değerleri vermiştir

Anahtar Kelimeler:

Atmosferik plazma, Hava plazma, Argon plazma, Yüzey modifikasyonu, Yün

EFFECTS OF ATMOSPHERIC PLASMA ON THE PRINTABILITY OF WOOL FABRICS

This study is about environmentally safe pre-treatment for wool fabrics to improve their printability with acid dyes. Knitted wool fabrics treated with argon and air atmospheric plasma were evaluated in terms of printability. Printing was carried out with two different receipts under different steaming conditions. The surfaces of untreated and plasma treated wool fabrics were analyzed by SEM to compare the morphological changes. Hairiness of the fabric was investigated under light microscope. The results showed that atmospheric plasma treatment improved the hydrophility of the fiber and enhanced the adhesion and penetration of printing paste to the surface with decreasing hairiness. Increased penetration of printing paste and reduced hairiness caused higher color yield even at lower steaming durations without wetting agent. Air and argon plasma treated fabrics, especially at higher exposure durations, showed higher light fastnesses. Adversely, same samples showed a decrease in wet and dry rubbing fastnesses which were probably caused from the deeper shade of the fabric

Keywords:

Atmospheric plasma, Air plasma, Argon plasma, Surface modification, Wool,

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