Journals / Tekstil ve Mühendis / 2019 / Cilt: 26 - Sayı: 113

EFFECTS OF ALKALI PRE-TREATMENT ON THE APPEARENCE AND STRUCTURAL PROPERTIES OF LYOCELL WOVEN FABRICS WITH DIFFERENT WEAVE TYPES

ALKALİ ÖN-İŞLEMİN FARKLI KUMAŞ ÖRGÜSÜNDEKİ LYOCELL DOKUMA KUMAŞLARIN GÖRÜNÜM VE YAPISAL ÖZELLİKLERİNE ETKİSİ

Pages
52–62
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Warp and weft densities, fabric thickness and weight of Lyocell fabrics in all weave types increased by the increase in alkali concentrations.

📌 3 Key Takeaways

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Objective & Hypothesis:Alkali process of cellulosic fibres is an important process in terms of improving dyeability and surface properties of fibres.
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Key Findings & Data:In this study, effects of alkali pre-treatment at different concentrations on appearance as fibrillation, abrasion and pilling resistance and on structural properties as density, thickness and weight of 100% Lyocell fabrics in different weave types (plain, twill, ribs) are investigated.
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Conclusion & Impact:Warp and weft densities, fabric thickness and weight of Lyocell fabrics in all weave types increased by the increase in alkali concentrations.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Alkali process of cellulosic fibres is an important process in terms of improving dyeability and surface properties of fibres. Mechanical and structural properties, appearances, colours and fibrillation tendencies of Lyocell fibres change depending on types and concentration of alkali, material form, process temperature and auxiliary chemicals used. In this study, effects of alkali pre-treatment at different concentrations on appearance as fibrillation, abrasion and pilling resistance and on structural properties as density, thickness and weight of 100% Lyocell fabrics in different weave types (plain, twill, ribs) are investigated. Alkali pretreatment decreased the tendency of fibrillation of Lyocell fibres, resulting in increased abrasion resistance and reduced pilling tendencies. Alkali pre-treatment increased the volume of yarns in the fabric due to increase in the Lyocell fibre diameter and caused to open twist spirals and shrinkage in the fabric. Warp and weft densities, fabric thickness and weight of Lyocell fabrics in all weave types increased by the increase in alkali concentrations.

Özet

Selülozik liflerin alkali işlemi, tekstil prosesleri içerisinde boyama kabiliyetini arttırması ve yüzey özelliklerini iyileştirmesi bakımından önemli bir işlemdir. Alkali tipi ve konsantrasyonu, materyal formu, proses sıcaklığı ve kullanılan yardımcı kimyasallara bağlı olarak, Lyocell liflerinin mekanik ve yapısal özellikleri, yüzey görünümleri, renk özellikleri ve fibrilasyon eğilimleri değişmektedir. Bu çalışmada, farklı konsantrasyonlardaki alkali ön-işlemin, farklı kumaş örgüsündeki %100 Lyocell kumaşların fibrilasyon, aşınma ve boncuklanma gibi görünüm ve sıklık, kalınlık ve gramaj gibi yapısal özelliklerine etkileri incelenmiştir. Bu çalışmada gerçekleştirilen alkali ön-işlem, Lyocell liflerinin fibrilasyon eğilimini azaltmış, buna bağlı olarak da aşınma dayanımı artmış ve boncuklanma eğilimi azalmıştır. Alkali ön-işlem, Lyocell lif çapındaki artışa bağlı olarak kumaşlardaki ipliklerin hacmini arttırmış ve bükümünü açarak kumaşta büzülmeye neden olmuştur. Alkali konsantrasyonu arttıkça, her üç kumaş örgüsünde de çözgü ve atkı yönündeki sıklık değerleri, kumaş kalınlık ve gramajları artmıştır.

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Cite This Article

ATICI, A., KAYA, G. (2019). EFFECTS OF ALKALI PRE-TREATMENT ON THE APPEARENCE AND STRUCTURAL PROPERTIES OF LYOCELL WOVEN FABRICS WITH DIFFERENT WEAVE TYPES. Tekstil ve Mühendis, Cilt: 26 - Sayı: 113, 52–62. https://ajindex.com/articles/365984

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