Improvement A Sustainable Pretreatment Process Including Enzymatic Treatment and Ozone Bleaching for The Jigger Machine

Öz

The present study aimed to improve a sustainable pretreatment process with enzymes and ozone gas at the jigger wet process machine for the 100% cotton woven fabric. In order to achieve this purpose, the stage where the ozone bleaching should be applied in the pretreatment process was firstly investigated. After the pretreatment processes, the effects of the processes on the pretreatment and mechanical performances of the fabric samples were researched. The pretreatment performance of treatments was researched through the residual starch, hydrophility, and whiteness (Berger value) tests, while the mechanical performances were examined via breaking and tearing strength, abrasion resistance, pilling, and SEM analyses. After all performance tests, to investigate the importance of the pretreatment process on the effectiveness of dyeing, the samples were dyed at the same jigger machine. In addition, the yellowing tendency of the pretreated samples depending on the time after the ozone bleaching were also researched. The results demonstrated that the stage where the ozone bleaching is applied was crucial, and the best results were obtained when the ozone bleaching is applied before the combined desizing and bioscouring treatments (Process 2). Besides, the ozone gas had no crucial negative effect on the mechanical performances of the fabrics, and the ozone-bleached fabric samples have no yellowing tendency when a process applied after ozone bleaching.

Anahtar Kelimeler

• Ozone
• Enzyme
• Pretreatment
• Ozone bleaching
• Jigger machine

Jigger Makinesi İçin Enzimatik ve Ozon Ağartma İşlemleri İçeren Sürdürülebilir Ön Terbiye Prosesi Geliştirilmesi

Öz

Bu çalışma, jigger yaş işlem makinesinde %100 pamuklu dokuma kumaşlar için enzim ve ozon gazı içeren sürdürülebilir bir ön terbiye prosesi geliştirmeyi amaçlamıştır. Bu amaçla ilk olarak, ön terbiye prosesinde ozon ağartmanın uygulanması gereken adım araştırılmıştır. Uygulanan ön terbiye işlemleri sonrası proseslerin kumaş numunelerinin ön terbiye ve mekanik performanslarına etkisi incelenmiştir. İşlemlerin ön terbiye performansları haşıl kalıntısı, hidrofilite ve beyazlık (Berger değeri) testleri; mekanik performansları ise kopma ve yırtılma mukavemeti, aşınma dayanımı, pilling testleri ve SEM analizleri vasıtasıyla araştırılmıştır. Performans testleri sonrası ön terbiye prosesinin boyama etkinliği üzerindeki önemini araştırmak amacıyla, ön terbiye işlemi gören kumaş numuneleri jigger makinesinde boyanmıştır. Ayrıca ön işlem gören kumaşların zamana bağlı olarak sararma eğilimleri de incelenmiştir. Sonuçlar, ozon ağartmanın uygulandığı işlem adımının oldukça önemli olduğunu, en iyi sonuçların tek adımda haşıl sökme ve biohidrofilleştirme işlemi öncesi ozon ağartma işlemi uygulandığında (Proses 2) elde edildiğini göstermiştir. Ayrıca, ozon gazının kumaşların mekanik özellikleri üzerinde önemli bir negatif etkisi olmadığı ve ozon ağartması sonrası işlem uygulandığında ozon gazı ile ağartılmış kumaşların sararma eğilimi göstermediği belirlenmiştir.

Anahtar Kelimeler

• Ozon
• Enzim
• Ön terbiye
• Ozon ağartma
• Jigger makinesi

Kaynakça

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